DESC:POWER CONVERTER SYSTEM AND METHOD OF OPERATION THEREOF
CROSS REFERENCE TO RELATED APPLICATIONS
The present application claims priority from Indian Provisional Patent Application No. 202421089595 filed on 19/11/2024, the entirety of which is incorporated herein by a reference.
TECHNICAL FIELD
Generally, the present disclosure relates to power systems. Particularly, the present disclosure relates to a power converter system and method of operation thereof.
BACKGROUND
A power converter refers to an apparatus that changes electrical energy from one form to another for efficient usage by loads, storage, or the grid. The power converter ensures compatibility by adjusting voltage, current, frequency, or waveform according to requirements. Over time, the power converters evolved from basic circuits with minimal protection to advanced units featuring built-in short-circuit safeguards. Early methods for overcurrent protection depended on simple fuses or thermal trips, which responded slowly in the event of overcurrent. Modern converters integrate gate drivers, fast current sensing, and digital controllers to detect short circuits within microseconds and quickly interrupt switching, significantly improving device safety and reliability of the power converter.
Conventional techniques of short-circuit and overcurrent protection in power converters are classified into three main types: on-state voltage drop monitoring, RC-based desaturation enhancement, and DESAT (desaturation) detection. In on-state voltage drop monitoring, abnormal voltage drop is detected across switches, requiring extra signal conditioning and risking false triggering or digital delay. In RC-based desaturation enhancement, RC networks are designed for faster detection, which increases PCB footprint, design complexity, and cost. In DESAT (desaturation) detection, gate drivers sense a voltage rise to identify short-circuit conditions and initiate turn-off. Specifically, the voltage of a power semiconductor switch, such as an IGBT/ MOFSET, is monitored. Further, during an overcurrent or short-circuit event, voltage rises sharply, triggering the gate driver to turn off the switch.
There are certain problems associated with the existing or above-mentioned mechanisms for a power conversion system for interfacing a first power module with a second power module. In the conventional mechanism, the DESAT protection is inherently reactive, as DESAT protection responds after the fault current has already started to rise. In fast transient faults, the delay allows significant current to flow through the device, stressing the semiconductor and reducing the overall reliability of conventional power converters. Additionally, the DESAT protection is sensitive to variations in device characteristics and temperature, which leads to inconsistent detection thresholds, false triggering, or delayed fault isolation under certain operating conditions. Consequently, the conventional DESAT-based protection mechanisms are not able to predict overcurrent events, resulting in inefficient switching decisions, delayed fault isolation, and a higher risk of device failure, particularly in modern high-density power converters.
Therefore, there exists a power conversion system for interfacing a first power module with a second power module that is efficient and overcomes one or more problems as mentioned above.
SUMMARY
An object of the present disclosure is to provide a power conversion system for interfacing a first power module with a second power module.
Another object of the present disclosure is to provide a power conversion method of interfacing a first power module with a second power module.
Yet another object of the present disclosure is to provide a power conversion system and method of interfacing a first power module with a second power module by dynamically predicting input current values for multiple switching states and generating gate driver signals.
In accordance with a first aspect of the present disclosure, there is provided a power conversion system for interfacing a first power module with a second power module, the system comprises:
a power conversion module configured to convert power between the first power module and the second power module;
at least one sensor configured to sense at least one input current value corresponding to the first power module;
a control unit communicably coupled to at least one gate driver unit and the at least one sensor; and
at least one gate driver unit communicably coupled to the control unit and the power conversion module,
wherein the control unit is configured to control at least one switching state of the power conversion module based on a plurality of predicted input current values and a corresponding predicted voltage drop.
The system and method of power conversion for interfacing a first power module with a second power module, as described in the present disclosure, are advantageous in terms of enhanced efficiency and reliability of power transfer through dynamic prediction of input current values across multiple switching states based on real-time operating parameters. Further, in response to sensed current inputs, active computation of current deviations and predicted voltage drops ensures optimal switching state selection and timely generation of gate driver signals for safe operation. Furthermore, device-level protection is reinforced through predictive evaluation of voltage thresholds, enabling early fault detection and reduction of overcurrent stress on semiconductor switches. In addition, integration of predictive and context-aware switching enhances the adaptability of power conversion. Consequently, the risks of inefficient switching, excessive power losses, device overstress, and reduced reliability in modern power converters are significantly reduced.
In accordance with another aspect of the present disclosure, there is provided a method of power conversion for interfacing a first power module with a second power module, the method comprising:
sensing at least one input current value of the first power module, via at least one sensor;
computing a current deviation corresponding to at least one switching state, via a control unit;
selecting the at least one switching state with a minimum current deviation, via the control unit;
computing a predicted voltage drop across the at least one switching state, based on the minimum current deviation and a predefined voltage threshold value via the control unit;
comparing a predicted voltage drop with a predefined threshold value, via the control unit; and
generating a gate driver signal value, via a gate driver unit.

Additional aspects, advantages, features, and objects of the present disclosure would be made apparent from the drawings and the detailed description of the illustrative embodiments constructed in conjunction with the appended claims that follow.
It will be appreciated that features of the present disclosure are susceptible to being combined in various combinations without departing from the scope of the present disclosure as defined by the appended claims.
BRIEF DESCRIPTION OF DRAWINGS
The summary above, as well as the following detailed description of illustrative embodiments, is better understood when read in conjunction with the appended drawings. For the purpose of illustrating the present disclosure, exemplary constructions of the disclosure are shown in the drawings. However, the present disclosure is not limited to specific methods and instrumentalities disclosed herein. Moreover, those in the art will understand that the drawings are not to scale. Wherever possible, like elements have been indicated by identical numbers.
Embodiments of the present disclosure will now be described, by way of example only, with reference to the following diagrams wherein:
Figure 1 illustrates a block diagram of a power conversion system for interfacing a first power module with a second power module, in accordance with an embodiment of the present disclosure.
Figure 2 illustrates a flow chart of a method of power conversion for interfacing a first power module with a second power module, in accordance with another embodiment of the present disclosure.
In the accompanying drawings, an underlined number is employed to represent an item over which the underlined number is positioned or an item to which the underlined number is adjacent. A non-underlined number relates to an item identified by a line linking the non-underlined number to the item. When a number is non-underlined and accompanied by an associated arrow, the non-underlined number is used to identify a general item at which the arrow is pointing.
DETAILED DESCRIPTION
The following detailed description illustrates embodiments of the present disclosure and ways in which they can be implemented. Although some modes of carrying out the present disclosure have been disclosed, those skilled in the art would recognize that other embodiments for carrying out or practicing the present disclosure are also possible.
As used herein, the terms “power conversion system”, “power conversion device,” and “energy conversion system” are used interchangeably and refer to an arrangement of electronic circuits configured to convert electrical energy from one form to another. Specifically, the power conversion system enables conversion between Alternating Current (AC) and Direct Current (DC), DC and DC, or AC and AC. The types of power conversion modules comprise, but are not limited to, grid-tied inverters, bidirectional converters, DC-DC converters, and battery chargers. Additionally, the power conversion system comprises, but is not limited to, semiconductor switches, sensors, control units, and gate drivers to ensure accurate, safe, and efficient operation under varying load and grid conditions. Furthermore, by dynamically regulating voltage and current, the system reduces harmonic distortions, ensures smooth energy transfer, adapts to fluctuations in load and source conditions, and prevents instability during transient events. Advantageously, the system supports optimized energy transfer, enhances reliability, and reduces operational losses in applications such as electric vehicles, renewable energy integration, and industrial automation.
As used herein, the terms “first power module” and “input module” are used interchangeably and refer to a power-supplying unit configured to provide electrical energy, in the form of AC or DC, to the power conversion system. Specifically, the first power module establishes an electrical interface with the power conversion module. The types of first power module comprise, but are not limited to, AC sources, DC sources, renewable energy modules, or battery storage units. Further, the first power module comprises functionalities such as stable energy delivery, monitoring of electrical parameters, and facilitation of predictive analysis of current behaviour during switching operations of the power conversion system. Furthermore, by continuously monitoring supplied current and stabilizing the input profile, the first power module supports accurate prediction of upcoming current variations and ensures consistent interaction with the control unit for precise regulation. Advantageously, the first power module enables dependable system operation, supports reliable fault detection, and improves efficiency across electric vehicles, renewable energy systems, and industrial networks.
As used herein, the terms “second power module” and “output module” are used interchangeably and refer to a power-receiving unit configured to receive controlled electrical energy, in the form of AC or DC, from a power conversion system. Specifically, the second power module establishes an electrical interface to receive at least one regulated output current value from the power conversion module. The types of second power module comprise, but are not limited to, battery chargers, AC loads, DC loads, or energy storage units. Further, the second power module comprises functionalities such as stable reception of processed energy, monitoring of delivered electrical parameters, and ensuring compatibility with load or storage requirements. Furthermore, by monitoring delivered current and aligning output with predefined load or storage conditions, the second power module ensures efficient adaptation to varying operational demands, maintains output stability, and prevents mismatches that could otherwise cause inefficiency or failure. Advantageously, the second power module supports safe and reliable delivery of regulated energy, improves adaptability, and enhances the overall performance of electric vehicles, grid-connected solutions, and industrial drives.
As used herein, the terms “sensor”, “sensing unit,” and “measurement module” are used interchangeably and refer to a monitoring device configured to detect at least one electrical parameter associated with a power module. Specifically, the sensor establishes an electrical interface with the first power module to sense at least one input current value corresponding to a switching operation of a power conversion system. The types of sensors comprise, but are not limited to, current transformers, Hall effect sensors, Rogowski coils, or shunt resistors. Further, the sensor comprises functionalities such as real-time acquisition of current data, transmission of sensed values to a control unit, and facilitation of predictive analysis based on the acquired signals. Furthermore, by continuously capturing current information and providing conditioned outputs to the control unit, the sensor ensures an accurate representation of electrical behaviour, enables early identification of anomalies, and improves the responsiveness of predictive algorithms. Advantageously, the sensor ensures precise monitoring of input current, supports reliable fault detection, and enhances the stability, safety, and efficiency of modern power converter systems.
As used herein, the terms “control unit”, “controller”, and “processing unit” are used interchangeably and refer to an electronic module configured to manage and regulate the operation of a power conversion system. Specifically, the control unit is communicably coupled to at least one sensor, a power conversion module, and a gate driver unit to process input current values and define control actions. The types of control units comprise, but are not limited to, digital controllers, microcontrollers, FPGA-based units, or DSP-based controllers. Further, the control unit comprises functionalities such as predicting a plurality of input current values, computing deviation against at least one reference current, selecting a switching state (an ON state or an OFF state) of the power conversion module that minimizes deviation, and estimating a voltage drop based on predefined on-state resistance. Furthermore, by executing the computational processes in real time, the control unit ensures accurate regulation of current flow, proactive prevention of unsafe states, and consistent adaptation to varying load and source conditions. Advantageously, the control unit provides predictive decision-making, improves fault tolerance, and enhances the efficiency and reliability of modern power converter systems.
As used herein, the terms “gate driver unit” and “driver circuit” are used interchangeably and refer to an electronic interface configured to control the operation of at least one switching state of a power conversion module. Specifically, the gate driver unit is communicably coupled to a control unit to receive at least one gate driver signal corresponding to a selected switching state. The types of gate driver units comprise, but are not limited to, isolated gate drivers, high-speed gate drivers, low-side drivers, or high-side drivers. Further, the gate driver unit comprises functionalities such as amplifying control signals, providing electrical isolation, and delivering appropriate voltage and current levels to reliably turn the power semiconductor switches on or off. Furthermore, the gate driver unit executes protection commands initiated by the control unit during abnormal conditions, such as, but not limited to, overcurrent or predicted voltage drop thresholds. Advantageously, the gate driver unit ensures fast, accurate, and safe switching, thereby improving fault protection, efficiency, and overall reliability of modern power converter systems.
As used herein, the terms “switching state”, “switch configuration” and “switching mode” are used interchangeably and refer to an operational condition of at least one power semiconductor switch, such as but not limited to a Metal-Oxide-Semiconductor Field Effect Transistor (MOSFET), an Insulated Gate Bipolar Transistor (IGBT), or a wide bandgap device including Silicon Carbide (SiC) and Gallium Nitride (GaN) transistors, within a power conversion module. Specifically, the switching state defines whether at least one power semiconductor switch is in an ON or OFF condition, thereby regulating the flow of current and determining power conversion between a first power module and a second power module. Further, the switching state is selected by a control unit based on predicted input current values, computed current deviation, and estimated voltage drop across the switching element. Furthermore, each switching state corresponds to a distinct conduction path that directly influences efficiency, current ripple, and fault tolerance of the system. Advantageously, the switching state enables precise regulation of power transfer, proactive fault prevention, and optimized performance of the power converter system.
As used herein, the terms “voltage drop”, “on-state voltage,” and “conduction voltage” are used interchangeably and refer to the reduction in voltage measured across a conduction path during operation of a power conversion module. Specifically, the voltage drop is predicted by a control unit based on at least one predicted input current value and an associated predefined on-state resistance. Further, the voltage drop serves as an indicator of device condition, switching state performance, and potential fault scenarios such as short-circuit or overcurrent. Furthermore, the control unit compares the predicted voltage drop with at least one predefined threshold value to generate gate driver signals for protective action. Advantageously, the voltage drop provides a reliable basis for predictive protection, early fault detection, and optimized switching control in modern power converter systems.
As used herein, the terms “input parameter”, “control variable,” and “operating parameter” are used interchangeably and refer to a measurable quantity that influences the operation of a power conversion module. Specifically, input parameters comprise, but are not limited to, load condition, input voltage, temperature, and on-state resistance of a switching element. The types of input parameters comprise, but are not limited to, electrical parameters (voltage, current, power), thermal parameters (temperature, thermal gradients), and operational parameters (switching frequency, duty cycle, load profile). Further, the control unit receives the input parameters to predict input current values, compute deviations, and select suitable switching states of the power conversion module. Furthermore, the input parameters enable accurate estimation of current and voltage under different operational conditions. Advantageously, the input parameters allow precise, real-time adaptive control, support predictive fault prevention, and enhance the overall efficiency and reliability of modern power converter systems.
As used herein, the terms “current deviation value”, “deviation metric,” and “current error value” are used interchangeably and refer to a computed difference between a predicted input current value and a reference current value. Specifically, the current deviation value is calculated by the control unit for each switching state of a power conversion module to evaluate the accuracy and stability of predicted current behavior. The types of current deviation value comprise, but are not limited to, instantaneous deviation, RMS deviation, peak deviation, and average deviation. Further, the current deviation value enables the identification of a switching state corresponding to minimum deviation, thereby optimizing current regulation and reducing ripple. Furthermore, the current deviation value serves as a decision parameter for predictive control, ensuring reliable operation even under varying load and input conditions. Advantageously, the current deviation value enhances dynamic optimization, improves fault resilience, and contributes to higher efficiency in modern power converter systems.
As used herein, the terms “gate driver signal” and “drive signal” are used interchangeably and refer to an electrical signal generated by a control unit to regulate the switching state of a power conversion module. Specifically, the gate driver signal is generated based on a comparison of a predicted voltage drop with at least one predefined voltage threshold value to ensure timely activation or deactivation of the switch. The types of gate driver signals comprise, but are not limited to, logic-level signals, isolated signals, PWM signals, and analog drive signals. Further, the gate driver signal is transmitted to a gate driver unit to amplify, isolate, and deliver appropriate voltage and current levels required for reliable switching. Furthermore, the gate driver signal incorporates predictive decision-making, thereby improving the responsiveness of fault protection mechanisms. Advantageously, the gate driver signal ensures precise control, enhances safety, and contributes to higher efficiency and reliability of modern power converter systems.
In accordance with a first aspect of the present disclosure, there is provided a power conversion system for interfacing a first power module with a second power module, the system comprises:
a power conversion module configured to convert power between the first power module and the second power module;
at least one sensor configured to sense at least one input current value corresponding to the first power module;
a control unit communicably coupled to at least one gate driver unit and the at least one sensor; and
at least one gate driver unit communicably coupled to the control unit and the power conversion module,
wherein the control unit is configured to control at least one switching state of the power conversion module based on a plurality of predicted input current values and a corresponding predicted voltage drop.
Referring to Figure 1, in accordance with an embodiment, a power conversion system 100 is described. The system 100 comprises a power conversion module 106 configured to convert power between the first power module 102 and the second power module 104, at least one sensor 108 configured to sense at least one input current value corresponding to the first power module 102. A control unit 110 communicably coupled to the power conversion module 106 and the at least one sensor 108. Further, at least one gate driver unit 112 is communicably coupled to the control unit 110 and the power conversion module 106. Further, the control unit 110 is configured to control at least one switching state of the power conversion module 106 based on a plurality of predicted input current values and a corresponding predicted voltage drop.
The system 100 enables predictive and adaptive control of power transfer between a first power module 102 and a second power module 104. The system 100 comprises a power conversion module 106, at least one sensor 108, a control unit 110, and a gate driver unit 112. Further, the power conversion module 106 comprises at least one switching element, such as but not limited to a MOSFET, IGBT, or GaN-based transistor. The switching element operates in ON and OFF switching states to regulate current flow between the first power module 102 and the second power module 104. Specifically, the first power module 102 provides input current in AC or DC form, and the second power module 104 receives controlled current as AC or DC. The sensor 108 senses an input current value associated with the first power module 102 and transmits the sensed current value to the control unit 110 in real time. Furthermore, the control unit 110 predicts the input current values corresponding to switching states of a switching element of the power conversion module 106. Furthermore, the control unit 110 compares the predicted current deviation with a reference current value and selects a switching state corresponding to the minimum deviation. Furthermore, the control unit 110 computes a predicted voltage drop across the selected switching state via the predicted current value and an associated predefined on-state resistance value. Furthermore, the control unit 110 generates a gate driver signal based on the comparison of the predicted voltage drop with a predefined voltage threshold value. Furthermore, abnormally high predicted current values produce voltage drop estimates above the threshold, and after detection, the control unit 110 modifies the gate driver signal to switch the state of the switching element of the power conversion module 106 into an OFF state, thereby blocking unsafe conduction paths. The predictive computation of current values ensures early detection of overcurrent and short-circuit conditions, which prevents excessive stress on switching elements and avoids potential damage. Advantageously, the system 100 establishes predictive and adaptive protection that prevents destructive short-circuit events, reduces ripple, and improves power transfer efficiency across electric vehicles, renewable energy systems, and industrial drives.
In an embodiment, the control unit 110 is configured to receive at least one input current value from at least one sensor 108 and predict the plurality of input current values corresponding to at least one switching state based on at least one input parameter. The sensor 108 measures the input current corresponding to the first power module 102 and transmits the sensed value to the control unit 110. Further, the control unit 110 predicts a plurality of input current values corresponding to different ON/OFF switching configurations of the power conversion module 106. The prediction is carried out using algorithms such as, but not limited to, Kalman Filtering, Model Predictive Control (MPC), least absolute deviation (LAD), or mean squared error (MSE) minimization. Specifically, the Model Predictive Control (MPC) algorithm is a mathematical model that simulates the future behavior of the power conversion module across multiple ON/OFF switching configurations, calculates predicted input currents i_(pred ) and evaluates deviations from a reference current using a derivative equation mentioned below, where Vstate is the applied voltage, R is resistance, L is inductance, and Ts is the sampling period or switching period.
i_(pred ) (k+1)=i(k)+T_s/L [V_state-R.i (k) ]
Furthermore, the control unit 110 employs at least one input parameter, such as but not limited to switching frequency, load condition, or on-state resistance of a switching element, to generate accurate predictions. The predictive processing performed by the control unit 110 enhances proactive fault prevention and minimizes current deviation. Advantageously, the control unit 110 ensures stable operation of the power conversion system across dynamic load and source conditions.
In an embodiment, the control unit 110 is configured to compute at least one current deviation value for each switching state of the power conversion module 106 based on a comparison of each predicted input current value from a plurality of input current values with a reference current value. The control unit 110 receives the plurality of predicted input current values to initiate deviation analysis. Further, the control unit 110 performs a comparison of each predicted input current value with the reference current value. Furthermore, the control unit 110 computes a current deviation value for each switching state by applying mathematical subtraction or absolute difference between the predicted input current and the reference current. Each computed deviation value is stored and used as a decision parameter in selecting the most suitable switching state. The control unit 110 predicts current deviations and quantifies the magnitude and direction of deviation for each switching state. By evaluating deviation against a reference current, the control unit 110 identifies the switching state that maintains current flow closest to the reference, enabling precise control and early mitigation of excessive current variations. The deviation-based computation, real-time adaptation to changing load and source conditions, maintains safe operation of the power conversion module. Advantageously, the control unit 110 enables precise current regulation, reducing ripple, and enhancing accuracy in power transfer within the system 100.
In an embodiment, the control unit 110 is configured to determine a minimum current deviation value from computed the at least one current deviation value and select a switching state corresponding to the minimum current deviation value. The control unit 110 receives the set of deviation values, each corresponding to a predicted switching state of the power conversion module 106. Further, the control unit 110 analyzes the deviation values by applying a selection algorithm that identifies the lowest deviation magnitude among the set. The selection algorithm compares all computed current deviation values and identifies the smallest magnitude. The switching state corresponding to the minimum deviation is then chosen for execution, ensuring the actual current remains closest to the reference. Furthermore, once the minimum deviation value is identified, the control unit 110 selects the switching state associated with that value. The selected switching state is then prepared for execution through the generation of a corresponding gate driver signal. The minimum deviation–based selection mechanism ensures predictive optimization of switching states. Advantageously, the control unit 110 precisely regulates current regulations, reduces error margins, and improves stability in power transfer within the system 100.
In an embodiment, the control unit 110 is configured to compute a predicted voltage drop across the selected switching state via the predicted current value and an associated predefined on-state resistance value. The computation is performed by combining the predicted input current value with an associated predefined on-state resistance value of the corresponding switching element. Further, the control unit 110 retrieves the predicted input current value derived for the selected switching state and multiplies the value by the on-state resistance parameter stored in the system memory, enabling precise estimation of the expected voltage drop across the switching path before execution. Furthermore, the predicted voltage drop is utilized as a decision parameter in the switching control process, ensuring that the selected switching state does not exceed a predefined voltage threshold. The computed drop is continuously updated within each sampling interval for real-time accuracy. The voltage drop estimation mechanism provides proactive short-circuit protection and prevents overstress of switching elements. Advantageously, the control unit 100 enhances the reliability and efficiency of the system 100 in managing power transfer.
In an embodiment, the system 100 comprises the control unit 110 is configured to compare a predicted voltage drop with a predefined voltage threshold value. The predicted voltage drop is determined based on a predicted input current value and an associated on-state resistance of the switching element. Further, the control unit 110 retrieves the computed predicted voltage drop for the selected switching state and evaluates the voltage drop against a stored threshold parameter representing the maximum permissible drop across the switch under safe operating conditions. Furthermore, the outcome of the comparison is a decisive factor in switching state selection; when the switching state results in a voltage drop greater than the predefined voltage threshold value, the switching state is disregarded, and only safe switching states are considered for gate driver activation. The comparison process is continuously executed within each sampling interval to maintain predictive protection. The comparison mechanism prevents activation of unsafe conduction paths and ensures rapid elimination of fault-prone states. Advantageously, the control unit 110 strengthens the reliability and safety of the system 100 under varying load and source conditions.
In an embodiment, the system 100 comprises the control unit 110 is configured to generate a gate driver signal based on the comparison of a predicted voltage drop with a predefined voltage threshold value. The control unit 110 processes the predicted drop for each switching state and selects a valid switching state when the drop remains below the threshold. Further, once the safe switching state is determined, the control unit 110 formulates a corresponding gate driver signal that defines the ON or OFF condition of the associated switching element within the power conversion module 106. Furthermore, the generated gate driver signal is transmitted to the gate driver unit 112, which applies the signal to regulate conduction paths between the first power module 102 and the second power module 104. The gate driver signals are generated dynamically based on predictive voltage drop comparison, which establishes proactive fault avoidance and enhances switching efficiency. Advantageously, the control unit 110 increases the operational safety of the system 100 across diverse operating environments
In an embodiment, the system 100 comprises the gate driver unit 112 is configured to receive the gate driver signal from the control unit corresponding to the selected switching state and control the at least one switching state of the power conversion module based on the received gate driver signal. The gate driver unit 112 is configured to define the ON or OFF condition of at least one switching element within the power conversion module 106 based on a received signal from the control. Further, the gate driver unit 112 applies the gate driver signal with precise timing and voltage levels required to activate or deactivate the switching element, thereby enabling controlled conduction paths between the first power module 102 and the second power module 104. Furthermore, the operation of the gate driver unit 112 ensures that the selected switching state determined by the control unit 110 is executed within the power conversion module 106, eliminating mismatches between computational selection and physical switching behavior. The gate driver unit 112 establishes reliable translation of predictive control decisions into physical switching operations. Advantageously, the gate driver signal 112 ensures safe current conduction, efficient power transfer, and robust protection of the system 100.
In accordance with a second aspect, there is described a method of interfacing a first power module with a second power module, the method comprising:
sensing at least one input current value corresponding to the first power module, via at least one sensor;
predicting a plurality of input current values corresponding to at least one switching state of the power conversion module based on at least one input parameter, via a controller unit;
computing a current deviation value for each switching state of the power conversion module based on a comparison of each predicted input current value from the plurality of input current values with a reference current value, via the control unit;
selecting the at least one switching state with a minimum current deviation, via the control unit;
comparing a predicted voltage drop with a predefined threshold voltage value, via the control unit; and
generating a gate driver signal, via the control unit.
Figure 2 describes a method 200 of interfacing a first power module 102 with a second power module 104. The method 200 starts at step 202. At step 202, the method 200 comprises sensing at least one input current value corresponding to the first power module 102, via at least one sensor 108. At step 204, the method 200 comprises predicting a plurality of input current values corresponding to at least one switching state of the power conversion module 106 based on at least one input parameter, via a controller unit 110. At step 206, the method 200 comprises computing a current deviation value for each switching state of the power conversion module 106 based on a comparison of each predicted input current value from the plurality of input current values with a reference current value, via the controller unit 110. At step 208, the method 200 comprises selecting the at least one switching state with a minimum current deviation, via the control unit 110. At step 210, the method 200 comprises comparing a predicted voltage drop with a predefined threshold value, via the control unit 110. At step 212, the method 200 comprises generating a gate driver signal value, via the controller unit 110. The method 200 ends at step 212.

In an embodiment, the method 200 comprises computing the predicted voltage drop across the at least one switching state based on the minimum current deviation and a predefined voltage threshold value, via the control unit 110.

In an embodiment, the method 200 comprises sensing at least one input current value of the first power module 102, via at least one sensor 108. Further, the method 200 comprises predicting a plurality of input current values corresponding to at least one switching state based on at least one input parameter, via a controller unit 110. Further, the method 200 comprises computing a current deviation for each switching state of the power conversion module 106 based on a comparison of each predicted input current value. Furthermore, the method 200 comprises selecting at least one switching state with a minimum current deviation, via the control unit 110. Furthermore, the method 200 comprises computing a predicted voltage drop across the at least one switching state based on the minimum current deviation and a predefined voltage threshold value, via the control unit 110. Furthermore, the method 200 comprises comparing the predicted voltage drop with a predefined threshold value, via the control unit 110. Furthermore, the method 200 comprises generating a gate driver signal value, via a gate driver unit 112.
The system and method of power conversion for interfacing a first power module with a second power module, as described in the present disclosure, are advantageous in terms of enhanced efficiency and reliability of power transfer through dynamic prediction of input current values across multiple switching states based on real-time operating parameters.
It would be appreciated that all the explanations and embodiments of the system 100 also apply mutatis-mutandis to the method 200.
In the description of the present invention, it is also to be noted that, unless otherwise explicitly specified or limited, the terms “disposed,” “mounted,” and “connected” are to be construed broadly, and may for example be fixedly connected, detachably connected, or integrally connected, either mechanically or electrically. They may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Modifications to embodiments and combinations of different embodiments of the present disclosure described in the foregoing are possible without departing from the scope of the present disclosure as defined by the accompanying claims. Expressions such as “including”, “comprising”, “incorporating”, “have”, and “is” used to describe and claim the present disclosure are intended to be construed in a non-exclusive manner, namely allowing for items, components, or elements not explicitly described also to be present. Reference to the singular is also to be construed to relate to the plural where appropriate.
Although embodiments have been described with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the scope of the principles of this disclosure. More particularly, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the present disclosure, the drawings, and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, alternative uses will also be apparent to those skilled in the art.
,CLAIMS:WE CLAIM:
1. A power conversion system (100) for interfacing a first power module (102) with a second power module (104), the system (100) comprises:
- a power conversion module (106) configured to convert power between the first power module (102) and the second power module (104);
- at least one sensor (108) configured to sense at least one input current value corresponding to the first power module (102);
- a control unit (110) communicably coupled to at least one gate driver unit (112) and the at least one sensor (108); and
- at least one gate driver unit (112) communicably coupled to the control unit (110) and the power conversion module (106),
wherein the control unit (110) is configured to control at least one switching state of the power conversion module (106) based on a plurality of predicted input current values and a corresponding predicted voltage drop.

2. The system (100) as claimed in claim 1, wherein the control unit (110) is configured to receive the at least one input current from the at least one sensor (108) and predict the plurality of input current values corresponding to the at least one switching state based on at least one input parameter.

3. The system (100) according to claim 1, wherein the control unit (110) is configured to compute a current deviation value for each switching state of the power conversion module (106) based on a comparison of each predicted input current value from the plurality of input current values with a reference current value.

4. The system (100) as claimed in claim 1, wherein the control unit (110) is configured to determine a minimum current deviation value from the computed the at least one current deviation value and select a switching state corresponding to the minimum current deviation value.

5. The system (100) as claimed in claim 1, wherein the control unit (110) is configured to compute the predicted voltage drop across the selected switching state via the predicted current value and an associated predefined on-state resistance value.

6. The system (100) as claimed in claim 1, wherein the control unit (110) is configured to compare the predicted voltage drop with a predefined voltage threshold value.

7. The system (100) according to claim 1, wherein the control unit (110) is configured to generate a gate driver signal based on the comparison of the predicted voltage drop with a predefined voltage threshold value.

8. The system as claimed in claim 1, wherein a gate driver unit (112) is configured to receive the gate driver signal from the control unit (112) corresponding to the selected switching state and control the at least one switching state of the power conversion module (106) based on the received gate driver signal.

9. A method (200) of interfacing a first power module (102) with a second power module (104), the method (200) comprising :
- sensing at least one input current value corresponding to the first power module (102), via at least one sensor (108);
- predicting the plurality of input current values corresponding to at least one switching state of the power conversion module based on at least one input parameter, via a controller unit (110);
- computing a current deviation value for each switching state of the power conversion module (106) based on a comparison of each predicted input current value from the plurality of input current values with a reference current value, via the control unit (110);
- selecting the at least one switching state with a minimum current deviation, via the control unit (110);
- comparing a predicted voltage drop with a predefined threshold voltage value, via the control unit (110); and
- generating a gate driver signal, via the control unit (110).