Photovoltaic Cell Based Shunt Active Filter and Power Quality Improvement Using Hybrid Optimization Technique

This paper explained efficient operation of solar cell based shunt active power filter for considerable energy management, harmonic estimation and is elimination along with reactive power compensation. The PV module is designed with INC MPPT technology and the shunt active power filter is connected at the AC side of the inverter integrated with a nonlinear rectifier load. The harmonics in load voltage, load current and source current are present due to connection of nonlinear load and intermittent PV power generation. The presence of harmonics in the power system may cause severe harm such as component overheating, increase in installation and consumer cost, malfunctioning of equipment, unusual tripping of circuit breakers, failure of sensors and noisy communication. To overcome all the above problems Filters are to be designed. Here a shunt active power filter designed to suppress the harmonic effects produced in the PV based system. Here the shunt active power filter design includes the PI controller whose gains are selected arbitrary which affects its performance. In the first study the total harmonic distortion (THD) is calculated with no filter and nonlinear load. Then THD Analysis is performed with shunt active power filter. Further to improve the performance of shunt active power filter, a hybrid optimization technique is applied to select the proper value of PI gains R and L of nonlinear load. The simulation result depicts that the optimized shunt active filter reduces harmonics to a great extent.