• M. Ezhilmaran
• S. Nivedha
• G. Poornima

Voltage Flicker is a low frequency modulation of the supply voltage. Voltage Flicker is characterized by a slow change in the Voltage magnitude with frequencies between 0.5 Hz to 30 Hz, which appears as a super imposed signal on the fundamental signal. The super imposed signal that is generated due to the voltage flicker appears as a change in the fundamental signal envelope. The major source of voltage flicker is due to Arc Furnaces. In this paper an Arc Furnace LAB model is developed and implemented in a MATLAB/Simulink Power System Blockset (PSB). The fast response of the DSTATCOM makes it the efficient solution for compensating Voltage Flicker. A new control algorithm is introduced to mitigate the Voltage Flicker. The main objective of the new control algorithm is to restore the voltage to its normal value. Two sequential control steps achieve this objective. In the first step, the control technique depends mainly on restoring the voltage by injecting reactive power. In the second step, amplitude modulation, k, varies to alter the injected voltage according to the instantaneous load voltage variation, after the voltage level is raised. The voltage at PCC is compared before and after compensation.

Distribution Static Synchronous Compensator (DSTATCOM); Fast Fourier Transform (FFT); Point of Common Coupling (PCC);Digital Storage Oscilloscope (DSO).

"Voltage flicker mitigation using DSTATCOM ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 6, page no.726-731, June-2018, Available :http://www.jetir.org/papers/JETIRC006130.pdf

"Voltage flicker mitigation using DSTATCOM ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 6, page no. pp726-731, June-2018, Available at : http://www.jetir.org/papers/JETIRC006130.pdf