Description:The development of arc furnaces brought about a revolution in the metalworking industry by providing advantages for the environment, increased versatility, efficiency, and better control over the melting and refining of metals and alloys. Arc furnaces are known to have a number of power quality problems because of their peculiar ways of operating. The following are a few problems with power quality that are related to arc furnaces such as Voltage Flicker, Harmonics, Voltage Fluctuations, Reactive Power Demand and Electromagnetic Interference (EMI).
A low frequency variability of the supplied voltage is called voltage flicker. Voltage flicker, which manifests as a superimposed signal on the basic signal, is defined by a gradual shift in the voltage magnitude at frequencies ranging from 0.5 Hz to 30 Hz. The voltage flicker produces a superimposed signal that manifests as a shift in the fundamental signal envelope. Arc furnaces are the main cause of voltage flicker. This study develops and implements a MATLAB/Simulink Power System Blockset (PSB) Arc Furnace LAB model. The DSTATCOM is an effective way to compensate for voltage flicker because of its quick response time. A novel control algorithm is presented in an effort to reduce Voltage Flicker. Restoring the voltage to its normal value is the primary goal of the new control algorithm. To this end, two consecutive control steps are used. Reactive power injection is the primary means of voltage restoration used in the first step of the control technique. After raising the voltage level, the second step involves varying the amplitude modulation, k, to change the injected voltage in accordance with the instantaneous load voltage variation. Before and after compensation, the voltage at PCC is compared.
, Claims:1.System Configuration Claim: Describing the specific configuration and components of the single-phase arc furnace model, possibly outlining the structure of the furnace, electrodes, power supply, sensors, and control mechanisms.
2.Control Method Claim: Detailing the method or algorithm used to control the operations of the single-phase arc furnace model. This could involve regulating temperature, arc stability, power input/output, etc.
For a patent related to DSTATCOM-Based Power Quality Improvement, claims might include:
3.DSTATCOM Configuration Claim: Outlining the design and arrangement of the DSTATCOM system, including components like the power converters, energy storage elements, control systems, etc., specifically tailored for power quality improvement in the context of the single-phase arc furnace or similar systems.
4.Power Quality Improvement Claim: Detailing the specific techniques or methods employed by the DSTATCOM system to enhance power quality. This might involve mitigating harmonics, voltage sags/swells, reactive power compensation, or other power quality issues.