RFLSA control scheme for power quality disturbances mitigation in DSTATCOM with N-level [articol]

Abstract

In this paper, a hybrid control scheme is proposed for the control of DSTATCOM’s reactive power with phase shift modulation of n-level inverter power system. The article presents the hybrid technique of DSTATCOM which trials to mitigate the power quality complications of a power system. Here, the gain parameters of the PI controller are attuned to provide the optimal control signal of the n-level inverter based DSTATCOM. The optimal control signal has been determined utilizing random forest search algorithm (RFSA). Based on the minimum error function, the learning process of RFSA is enhanced by using the lightning search algorithm (LSA) and hence it is named as RFLSA technique. Then, the proposed technique is implemented in the MATLAB/Simulink platform and the performance is evaluated. The behavior of the proposed technique has been successfully compared with various techniques. Simulation results shows that the proposed technique has the capability of ensuring satisfactory dynamic response resulting high efficiency and diminished harmonics.