DESC:FIELD OF THE INVENTION

The present disclosure relates to charging systems and more particularly, to an Electric Vehicle (EV) charging system.

BACKGROUND

Electrical vehicles (EVs) have gained widespread popularity in the last few years and significant growth and development are still being witnessed in their realm. As is already known, such EVs are required to be frequently charged, for example, at charging terminals for continuous operation by an EV charging system. At a charging terminal, a user is required to plug the EV into a charging terminal and pay for the services thereafter.

Typically, the EV charging system comprises a voltage detection unit, a control unit, and a power supply unit. The EV charging system requires a plurality of electrical phases, for example, a three-phase electrical power to charge the EVs. The three-phase electrical power includes a first-phase electrical power, a second-phase electrical power, and a third-phase electrical power. Conventionally, the control unit of the EV charging system requires the first-phase electrical power, such as a R phase electrical power, for operation. This configuration thus, provides output to operate the EV charging system for charging the EVs. In certain scenarios, the first-phase electrical power is unable to transfer electrical power to the control unit of the EV charging system, because of various reasons, for example, a short circuit, a loose connection, etc.

Hence, conventionally, there is no alternate source of electrical power connection that may provide the electrical power to the control unit of the EV charging system. Therefore, the absence of the electrical power from the first-phase electrical power to the control unit of the EV charging system results in the non-operability of the control unit. Thus, the EV charging system becomes non-functional. Further, the absence of electrical power from the first-phase electrical power to the control unit of the EV charging system also raises problems for users. The users may not be able to predict the reason/possibility of the non-functionality of the EV charging system despite having the three-phase electrical power connection in the EV charging system. Hence, there is a requirement to provide continuous electrical power in the EV charging system, especially in the control unit of the EV charging system, to charge the EVs.

In this regard, many technical solutions have been developed to overcome the above-mentioned problem. For instance, a battery charging system, to be used in EVs, is disclosed. The charging system receives single-phase AC electrical power and delivers both AC and DC electrical power to the battery, i.e., an energy storage device. However, this configuration has its own limitations. The configuration as disclosed has no source of electrical power connection which may provide electrical power to the control unit of the EV charging system, in case of failure of the first-phase electrical power from the plurality of electrical phases. Therefore, the absence of input from the first phase-electrical power to the control unit of the EV charging system results in non-operability of the control unit, and thus, the EV charging system becomes non-functional.

Hence, there is a requirement to provide continuous electrical power in the EV charging system, especially in the control unit of the EV charging system, to charge the EVs while overcoming the abovementioned problem.

SUMMARY

This summary is provided to introduce a selection of concepts, in a simplified format, that are further described in the detailed description of the invention. This summary is neither intended to identify key or essential inventive concepts of the invention and nor is it intended for determining the scope of the invention.

The present disclosure aims to provide an EV charging system that maintains continuous electrical power in each component of the EV charging system, especially in a control unit, to charge the EVs.

In an embodiment, an electric vehicle (EV) charging system, that has, a voltage detection unit, a relay, a control unit, and a power supply unit, is disclosed. The voltage detection unit is in communication with a plurality of electrical phases. The voltage detection unit is adapted to detect an operational state of each of the plurality of electrical phases. The relay is communicatively coupled to the voltage detection unit. The control unit includes a processor. The processor is communicatively coupled with the voltage detection unit and the relay. The processor is configured to receive the operational state of each of the plurality of electrical phases from the voltage detection unit. The operational state indicates one of an active state and an inactive state of each of the plurality of electrical phases. The processor determines at least one active electrical phase from the plurality of electrical phases, based on the operational state of each of the plurality of electrical phases. The processor generates an electric signal corresponding to the at least one active electrical phase from the plurality of electrical phases. The processor operates the relay based on the electric signal. The relay is adapted to be operated by the processor for transmission of an electrical power from the at least one active electrical phase. The power supply unit is communicatively coupled with the relay. The power supply unit is adapted to receive the electrical power from the at least one active electrical phase, via the relay, to activate the control unit.

In another embodiment, a method for operating an EV charging system is disclosed. The method includes detecting an operational state of a plurality of electrical phases by a voltage detection unit. The method includes receiving the operational state of the plurality of electrical phases by a processor of a control unit, where the operational state indicates one of an active state and an inactive state of each of the plurality of electrical phases. The method includes determining at least one active electrical phase from the plurality of electrical phases, based on the operational state of each of the plurality of electrical phases, by the processor. The method includes generating an electric signal corresponding to the at least one active electrical phase from the plurality of electrical phases. The method includes operating a relay based on the electric signal, where the relay is adapted to be operated by the processor for transmission of an electrical power from the at least one active electrical phase. The method includes activating the control unit by a power supply unit, where the power supply unit receives the electrical power from the at least one active electrical phase via the relay to activate the control unit.

According to the present disclosure, the EV charging system as disclosed in the present disclosure maintains the electrical power in each component of the charging system, especially in the control unit. The EV charging system maintains the electrical power by detecting the at least one active electrical phase from the plurality of electrical phases and providing the electrical power from the at least one active electrical phase to the control unit. The EV charging system detects and provides the electrical power from the at least one active electrical phase to the control unit, when at least one of the plurality of electrical phases is in the inactive state. This ensures an alternate electrical power source for providing the electrical power to the control unit. This configuration increases the efficiency of the EV charging system and provides ease of accessibility and charging to users.

To further clarify the advantages and features of the present disclosure, a more particular description of the invention will be rendered by reference to specific embodiments thereof, which is illustrated in the appended drawings. It is appreciated that these drawings depict only typical embodiments of the invention and are therefore not to be considered limiting of its scope. The invention will be described and explained with additional specificity and detail with the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

These and other features, aspects, and advantages of the present disclosure will become better understood when the following detailed description is read with reference to the accompanying drawings in which like characters represent like parts throughout the drawings, wherein:

Figure 1 illustrates a schematic view of an EV charging system, in accordance with an embodiment of the present disclosure; and

Figures 2A-2B illustrate a method for charging EV charging system, in accordance with an embodiment of the present disclosure.

Further, skilled artisans will appreciate that elements in the drawings are illustrated for simplicity and may not have necessarily been drawn to scale. Furthermore, in terms of the construction of the device, one or more components of the device may have been represented in the drawings by conventional symbols, and the drawings may show only those specific details that are pertinent to understanding the embodiments of the present disclosure so as not to obscure the drawings with details that will be readily apparent to those of ordinary skill in the art having benefit of the description herein.

DETAILED DESCRIPTION OF FIGURES

For the purpose of promoting an understanding of the principles of the invention, reference will now be made to the embodiment illustrated in the drawings and specific language will be used to describe the same. It will nevertheless be understood that no limitation of the scope of the invention is thereby intended, such alterations and further modifications in the illustrated system, and such further applications of the principles of the invention as illustrated therein being contemplated as would normally occur to one skilled in the art to which the invention relates. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skilled in the art to which invention belongs. The system and examples provided herein are illustrative only and not intended to be limiting.

It should be appreciated by a person skilled in the art that the terminology and structure employed herein is for describing, teaching, and illuminating some embodiments and their specific features and elements and therefore, should not be construed to limit, restrict or reduce the spirit and scope of the present disclosure in any way.

For example, any terms used herein such as, “includes,” “comprises,” “has,” “consists,” and similar grammatical variants do not specify an exact limitation or restriction, and certainly do not exclude the possible addition of one or more features or elements, unless otherwise stated. Further, such terms must not be taken to exclude the possible removal of one or more of the listed features and elements, unless otherwise stated, for example, by using the limiting language including, but not limited to, “must comprise” or “needs to include.”

Whether or not a certain feature or element was limited to being used only once, it may still be referred to as “one or more features” or “one or more elements” or “at least one feature” or “at least one element.” Furthermore, the use of the terms “one or more” or “at least one” feature or element do not preclude there being none of that feature or element, unless otherwise specified by limiting language including, but not limited to, “there needs to be one or more...” or “one or more elements is required.”

Unless otherwise defined, all terms and especially any technical and/or scientific terms, used herein may be taken to have the same meaning as commonly understood by a person ordinarily skilled in the art.

Reference is made herein to some “embodiments.” It should be understood that as per one embodiment is an example of a possible implementation of any features and/or elements of the present disclosure. Some embodiments have been described for the purpose of explaining one or more of the potential ways in which the specific features and/or elements of the proposed disclosure fulfil the requirements of uniqueness, utility, and non-obviousness.

Use of the phrases and/or terms including, but not limited to, “a first embodiment,” “a further embodiment,” “an alternate embodiment,” “one embodiment,” “an embodiment,” “multiple embodiments,” “some embodiments,” “other embodiments,” “further embodiment”, “furthermore embodiment”, “additional embodiment” or other variants thereof do not necessarily refer to the same embodiments. Unless otherwise specified, one or more particular features and/or elements described in connection with one or more embodiments may be found in one embodiment, or may be found in more than one embodiment, or may be found in all embodiments, or may be found in no embodiments. Although one or more features and/or elements may be described herein in the context of only a single embodiment, or in the context of more than one embodiment, or in the context of all embodiments, the features and/or elements may instead be provided separately or in any appropriate combination or not at all. Conversely, any features and/or elements described in the context of separate embodiments may alternatively be realized as existing together in the context of a single embodiment.

Any particular and all details set forth herein are used in the context of some embodiments and therefore should not necessarily be taken as limiting factors to the proposed disclosure.

Embodiments of the present disclosure will be described below in detail with reference to the accompanying drawings.

For the sake of clarity, the first digit of a reference numeral of each component of the present disclosure is indicative of the Figure number, in which the corresponding component is shown. For example, reference numerals starting with digit “1” are shown at least in Figure 1. Similarly, reference numerals starting with digit “2” are shown at least in Figure 2.

Figure 1 illustrates a schematic view of an EV charging system 100 (referred here as ‘Charging System’), in accordance with an embodiment of the present disclosure. The charging system 100 of the present disclosure ensures continuous electrical power supply in a control unit 115 of the charging system 100, thus increasing the overall efficiency of the charging system 100.

The charging system 100 may include, but is not limited to, a voltage detection unit 102, a relay 109, a power supply unit 110, the control unit 115, and an electronic device 113, among other components, details of which will be provided in subsequent paragraphs.

In an embodiment, the voltage detection unit 102 is in communication with a plurality of electrical phases 101. The voltage detection unit 102 is adapted to detect an operational state of each of the plurality of electrical phases 101. In an embodiment, the voltage of each of the plurality of electrical phases 101 is sensed by a voltage divider unit (not shown), and the voltage is converted to 5V/24V, subsequently. Based on the voltage of each of the plurality of electrical phases 101, the voltage detection unit 102 along with an energy metering unit (not shown) is adapted to detect the operational state of each of the plurality of electrical phases 101. Further, the relay 109 is communicatively coupled with the voltage detection unit 102 and actuates based on an electric signal generated by the control unit 115. Further, the relay 109 is adapted for transmission of electrical power from at least one of the plurality of electrical phases 101 to the power supply unit 110.

In an embodiment, the power supply unit 110 is communicatively coupled with the relay 109. The power supply unit 110 receives the electrical power from the at least one of the plurality of electrical phases 101 through the relay 109. The power supply unit 110 supplies the electrical power, to the control unit 115 for charging/activating the control unit 115. In an embodiment, the control unit 115 is communicatively coupled with the voltage detection unit 102 and the relay 109. The control unit 115 includes a processor 103, a relay driver 108, a charging plate 111, and an energy storage unit 112. In an embodiment, the processor 103 is communicatively coupled with the voltage detection unit 102 and the relay 109.

In an embodiment, the processor 103 may include, but is not limited to, a memory and modules. The modules and the memory may be coupled to the processor 103. The processor 103 can be a single processing unit or several units, all of which could include multiple computing units. The processor 103 may be implemented as one or more microprocessors, microcomputers, microcontrollers, digital signal processors, central processing units, state machines, logic circuitries, and/or any devices that manipulate signals based on operational instructions. Among other capabilities, the processor is configured to fetch and execute computer-readable instructions and data stored in the memory.

The memory may include any non-transitory computer-readable medium known in the art including, for example, volatile memory, such as static random access memory (SRAM) and dynamic random access memory (DRAM), and/or non-volatile memory, such as read-only memory (ROM), erasable programmable ROM, flash memories, hard disks, optical disks, and magnetic tapes.

The modules, amongst other things, include routines, programs, objects, components, data structures, etc., which perform particular tasks or implement data types. The modules may also be implemented as, signal processor(s), state machine(s), logic circuitries, and/or any other device or component that manipulates signals based on operational instructions.

Further, the modules can be implemented in hardware, instructions executed by a processing unit, or by a combination thereof. The processing unit can comprise a computer, a processor 103, a state machine, a logic array, or any other suitable devices capable of processing instructions. The processing unit can be a general-purpose processor which executes instructions to cause the general-purpose processor to perform the required tasks or, the processing unit can be dedicated to performing the required functions. In another embodiment of the present disclosure, the modules may be machine-readable instructions (software) which, when executed by the processor/processing unit, perform any of the described functionalities. Further, the data serves, amongst other things, as a repository for storing data processed, received, and generated by one or more of the modules.

In an embodiment, the module includes a receiving module 104, a determining module 105, and a comparing module 106. The receiving module 104, the determining module 105, and the comparing module 106 are in communication with each other and form a part of the processor 103.

In an embodiment, during operation, the processor 103 is configured to receive the operational state of each of the plurality of electrical phases 101 from the voltage detection unit 102. The processor 103 receives the operational state of each of the plurality of electrical phases 101 through various communications means, for example, Serial Peripheral Interface (SPI), Universal Asynchronous Receiver-Transmitter (UART), Inter-Integrated Circuit (I2C), without departing from the scope of the present disclosure. In an embodiment, the plurality of electrical phases 101 includes a first-phase electrical power, a second-phase electrical power, and a third-phase electrical power. In an embodiment, the plurality of electrical phases 101 is a three-phase electrical power. The three-phase electrical power includes the first-phase electrical power, i.e., a R phase electrical power, the second-phase electrical power, i.e., a Y phase electrical power, and the third-phase electrical power, i.e, a B phase electrical power. The operational state indicates one of an active and an inactive state of each of the plurality of electrical phases 101.

In an embodiment, the processor 103 determines an operational state of the first-phase electrical power which is a main phase electrical power. When the first-phase electrical power is in the active state, the voltage detection unit 102 transfers the signal, corresponding to the first-phase electrical power, to the relay 109. Further, the relay 109 actuates on the signal provided by the first-phase electrical power. Thereafter, the electrical power is transmitted from the first-phase electrical power, detected by the voltage detection unit 102, to the control unit 115 via the relay 109 and the power supply unit 110. In an embodiment, the power supply unit 110 receives the electrical power from the first-phase electrical power via the relay 109. Therefore, the at least one of the plurality of electrical phases 101 which transmits the electrical power to the power supply unit 110 through the relay 109 is the first-phase electrical phase, when the first phase electrical phase is in the active state. Further, the power supply unit 110 supplies the electrical power to the charging plate 111. The charging plate 111 charges the energy storage device 112 and also activates the processor 103 to operate the charging system 100, thus supplying electrical power to the control unit 115 and hence charging the EVs.

In another embodiment, when the first-phase electrical power is in the inactive state, the processor 103 determines at least one active electrical phase from the plurality of electrical phases 101. The processor 103 determines the at least one active electrical phase from the plurality of electrical phases 101, based on the operational state of each of the plurality of electrical phases 101. In an embodiment, the processor 103 determines a value corresponding to each of the plurality of electrical phases, based on the operational state of each of the plurality of electrical phases 101 received from the voltage detection unit 102. Further, the processor 103 compares the determined value corresponding to each of the plurality of electrical phases 101 with a predetermined value of each of the plurality of electrical phases 101. Thereafter, the processor 103 determines the at least one active electrical phase from the plurality of electrical phases 101, based on the comparison of the determined value with the predetermined value of each of the plurality of electrical phases 101. The predetermined value of each of the plurality of electrical phases 101 is stored in the memory of the processor 103.

Specifically, the receiving module 104 receives the operational state of each of the plurality of electrical phases 101. The receiving module 104 of the processor 103 is in communication with the determining module 105 of the processor 103. The determining module 105 is adapted to determine the at least one active electrical phase from the plurality of electrical phases 101, based on the operational state of each of the plurality of electrical phases 101. In an embodiment, the determining module 105 determines the value corresponding to each of the plurality of electrical phases 101, based on the operational state of each of the plurality of electrical phases 101. Further, the determining module 105 is in communication with the comparing module 106. The comparing module 106 compares the determined value corresponding to each of the plurality of electrical phases 101 with the predetermined value of each of the plurality of electrical phases stored as a priority logic table in the memory of the processor 103. The priority logic table (Table 1) is provided as below:
Priority Logic Table
Input Output
First Phase electrical power (R phase) Second Phase electrical power (Y Phase) Third Phase electrical power (B Phase)
1 1 1 R Phase
1 1 0 R Phase
1 0 1 R Phase
1 0 0 R Phase
0 1 1 Y Phase
0 1 0 Y Phase
0 0 1 B Phase
0 0 1 B Phase
Table 1

Further, after comparing the determined value and the predetermined value of each of the plurality of electrical phases 101, the processor 103 determines the at least one active electrical phase from the plurality of electrical phases 101. The at least one active electrical phase is indicated as an output in the priority logic table as shown above. The at least one active electrical phase from the plurality of electrical phases 101 is determined on priority by the processor 103. For example. when the first-phase electrical power is in the inactive state and simultaneously, the second-phase electrical power and the third-phase electrical power are in the active state respectively. In that case, the at least one active electrical phase determined by the processor 103, on priority, is the second-phase electrical power. Hence, the processor 103 switches over to an alternate source, that is, the at least one active electrical phase from the plurality of electrical phases 101 which is further provided to a relay driver 108 in the form of an electric signal.

In an embodiment, the processor 103 generates the electric signal corresponding to the at least one active electrical phase from the plurality of electrical phases 101. The processor 103 operates/actuates the relay 109 based on the electric signal, through the relay driver 108. In an embodiment, the relay driver 108 is communicatively coupled to the processor 103 and the relay 109. The relay driver 108 is adapted to transfer the electric signal from the processor 103 to the relay 109 for actuating/operating the relay 109. In an embodiment, the relay 109 is a three-pole single-throw relay having a plurality of switches. Each switch of the relay 109 corresponds to the plurality of electrical phases 101. Thus, based on the electric signal received from the processor 103, the relay 109 actuates the switch from the plurality of switches.

In an embodiment, the relay 109 is adapted to be actuated/operated by the processor 103 for transmission of the electrical power from the at least one active electrical phase to the power supply unit 110. Further, the power supply unit 110 receives the electrical power from the at least one active electrical phase. Therefore, the at least one of the plurality of electrical phases 101 which transmits the electrical power to the power supply unit 110, through the relay 109, is the at least one active electrical phase, when the first-phase electrical power is in the inactive state. Further, the power supply unit 110 is adapted to supply electrical power to the charging plate 111. The power supply unit 110 supplies the electrical power in the DC phase to the charging plate 111. The charging plate 111 charges the energy storage unit 112 and activates the processor 103, i.e., the control unit 115. The energy storage device 112 is electrically coupled with the processor 103. The charging plate 111 is electrically coupled with the processor 103 and the energy storage device 112. In one implementation, the energy storage device 112 is a battery or a small/super capacitor.

Moreover, when the first-phase electrical power is in the inactive state, then the energy storage device 112, provides the electrical power to the processor 103, to activate and operate the processor 103 for switching over to the alternate source for activating the control unit 115. In view of the same, as discussed earlier, the processor 103 operates and determines the at least one active electrical phase on priority from the plurality of electrical phases 101 to supply electrical power to the control unit 115 of the charging system 100. Hence, the processor 103 switchovers to the alternate source to activate the control unit 115 and thus maintains functionality of the charging system 100. This configuration of the charging system 100 increases the ease of accessibility of the charging system by users.

Therefore, the present disclosure discloses both the conditions, that the operational state of the first-phase electrical power is in the inactive state, when the electrical power is transmitted from the at least one active electrical phase to the power supply unit 110, via the relay 109 and the processor 103, to activate the control unit 115. In an embodiment, the power supply unit 110 further supplies the electrical power to the control unit 115 to activate the control unit 115. Similarly, the operational state of the first-phase electrical power is in the active state, where the first-phase electrical power transmits the electrical power to the control unit 115 via the relay 109 and the power supply unit 110.

In an embodiment, the electronic device 113 is communicatively coupled with the control unit 115. The electronic device 113 is communicatively coupled with the control unit 115 through various mechanisms/networks, for example, wired or wireless networks. The electronic device 113 includes a display unit 114 which displays the status of the EV charging system 100. This configuration ensures ease of accessibility and the ease of charging of the EVs by users.

The present disclosure also relates to a method 200 for operating the EV charging system. The order in which the method steps are described below is not intended to be construed as a limitation, and any number of the described method steps can be combined in any appropriate order to execute the method or an alternative method. Additionally, individual steps may be deleted from the method without departing from the spirit and scope of the subject matter described herein.

The method 200 can be performed by programmed computing devices, for example, based on instructions retrieved from non-transitory computer readable media. In the present disclosure, the method 200 is performed by the system 100. The computer readable media can include machine-executable or computer-executable instructions to perform all or portions of the described method. The computer readable media may be, for example, digital memories, magnetic storage media, such as a magnetic disks and magnetic tapes, hard drives, or optically readable data storage media.

The method 200 is explained in conjunction with Figures 2A and 2B. Figures 2A-2B explains the method for operating the charging system, in accordance with an embodiment of the present disclosure. At block 201, the method 200 includes detecting, by the voltage detection unit 102, the operational state of the plurality of electrical phases 101.

At block 202, the method 200 includes receiving, by the processor 103,the operational state of the plurality of electrical phases 101. The operational state indicates one of the active state and the inactive state of each of the plurality of electrical phases.

At block 203, the method 200 includes determining, by the processor 103, the at least one active electrical phase from the plurality of electrical phases 101, based on the operational state of each of the plurality of electrical phases 101.

At block 204, the method 200 includes generating, by the processor 103, the electric signal corresponding to the at least one active electrical phase from the plurality of electrical phases 101.

At block 205, the method 200 includes operating, by the processor 103, the relay 109 based on the electric signal, where the relay 109 is adapted to be actuated/operated by the processor 103 for transmission of the electrical power from the at least one active electrical phase to the power supply unit 110.

At block 206, the method 200 includes activating the control unit 115 by the power supply unit 110, where the power supply unit 110 receives the electrical power from the at least one active electrical phase via the relay 109 to activate the control unit 115.

As would be gathered, the charging system 100 and the method 200 of the present disclosure offer a comprehensive approach for providing the electrical power supply in the control unit 115 of the charging system, even if the first phase electrical power from the plurality of electrical phases 101 is in the inactive phase, thus increases working efficiency of the charging system 100 for charging the EVs. Further, the charging system 100 and the method 200 as disclosed also ensure ease of accessibility for the users. Further, the electronic device 113 provides notifications indicating the status of the plurality of electrical phases 101 and the charging system 100. The present invention may be implemented/ deployed, but not limited to, Type 2AC EV Charger, Bharat AC001, 30KW Wall box, 40KW/60KW/120KW/180KW.240KW DC chargers.

While specific language has been used to describe the present disclosure, any limitations arising on account thereto, are not intended. As would be apparent to a person in the art, various working modifications may be made to the method in order to implement the inventive concept as taught herein. The drawings and the foregoing description give examples of embodiments. Those skilled in the art will appreciate that one or more of the described elements may well be combined into a single functional element. Alternatively, certain elements may be split into multiple functional elements. Elements from one embodiment may be added to another embodiment. ,CLAIMS:1. An Electric Vehicle (EV) charging system (100) comprising:
a voltage detection unit (102) in communication with a plurality of electrical phases (101) and adapted to detect an operational state of each of the plurality of electrical phases (101);
a relay (109) communicatively coupled to the voltage detection unit (102);
a control unit (115) comprising:
a processor (103) communicatively coupled with the voltage detection unit (102) and the relay (109), wherein the processor (103) is configured to:
receive the operational state of each of the plurality of electrical phases (101) from the voltage detection unit (102), wherein the operational state indicates one of an active state and an inactive state of each of the plurality of electrical phases (101);
determine at least one active electrical phase from the plurality of electrical phases (101), based on the operational state of each of the plurality of electrical phases (101);
generates an electric signal corresponding to the at least one active electrical phase from the plurality of electrical phases (101); and
operates the relay (109) based on the electric signal, wherein the relay (109) is adapted to be operated by the processor (103) for transmission of electrical power from the at least one active electrical phase; and
a power supply unit (110) communicatively coupled with the relay (109) and adapted to receive the electrical power from the at least one active electrical phase via the relay (109), to activate the control unit (115).

2. The EV charging system (100) as claimed in claim 1, wherein the processor (103) is configured to:
determine, based on the received operational state of each of the plurality of electrical phases (101), a value corresponding to each of the plurality of electrical phases (101); and
compare the determined value corresponding to each of the plurality of electrical phases (101) with a predetermined value of each of the plurality of electrical phases (101) stored in the processor (103) to determine the at least one active electrical phase from the plurality of electrical phases (101).

3. The EV charging system (100) as claimed in claim 1, wherein the control unit (115) comprises:
a relay driver (108) communicatively coupled to the processor (103) and the relay (109), wherein the relay drive (108) is adapted to transfer the electric signal from the processor (103) to the relay (109) to operate the relay (109).

4. The EV charging system (100) as claimed in claim 1, wherein the plurality of electrical phases (101) includes a first-phase electrical power, a second-phase electrical power, and a third-phase electrical power.

5. The EV charging system (100) as claimed in claim 4, wherein the operational state of the first-phase electrical power is in the inactive state, when the electrical power is transmitted from the at least one active electrical phase to the power supply unit (110), via the relay (109) and the processor (103), to activate the control unit (115).

6. The EV charging system (100) as claimed in claim 4, wherein the operational state of the first-phase electrical power is in the active state, wherein the first- phase electrical power transmits the electrical power to the control unit (115) via the relay (109) and the power supply unit (110).

7. The EV charging system (100) as claimed in claim 1, wherein the control unit (115) comprises:
an energy storage device (112) electrically coupled with the processor (103); and
a charging plate (111) electrically coupled with the energy storage device (112) and the processor (103),
wherein,
the charging plate (111) receives the electrical power from the power supply unit (110) to charge the energy storage device (112) and activates the processor (103) of the control unit (115).

8. The EV charging system (100) as claimed in claim 7, wherein the energy storage device (112) activates the processor (103) of the control unit (115), when a first-phase electrical power from the plurality of electrical phases (101) is in the inactive state.

9. The EV charging system (100) as claimed in claim 1, comprising:
an electronic device (113) communicatively coupled to the control unit (115) having a display unit (114),
wherein,
the electronic device (113) displays a status of the EV charging system (100) on the display unit (114).

10. A method for operating an EV charging system (100), comprising:
detecting (201), by a voltage detection unit (102), an operational state of a plurality of electrical phases (101);
receiving (202), by a processor (103) of a control unit (115), the operational state of the plurality of electrical phases (101), wherein the operational state indicates one of an active state and an inactive state of each of the plurality of electrical phases (101);
determining (203), by the processor (103), at least one active electrical phase from the plurality of electrical phases (101), based on the operational state of each of the plurality of electrical phases (101);
generating (204), by the processor (103), an electric signal corresponding to the at least one active electrical phase from the plurality of electrical phases (101);
operating (205), by the processor (103), a relay based on the electric signal, wherein the relay (109) is adapted to be operated by the processor (103) for transmission of electrical power from the at least one active electrical phase; and
activating (206) the control unit (115) by a power supply unit (110), wherein the power supply unit (115) receives the electrical power from the at least one active electrical phase via the relay (109), to activate the control unit (115).