Performance Investigation of L-type Shunt Active Power Filter supported with Battery using UVT Control Method for distorted Loads

Staring from lower to higher voltage level in power system network, there is a vast use of power semiconductor components. This power semiconductor component introduces harmonics in the system and degrades the quality of the power in the entire network. To improve the network performance by increasing the power quality there is a need to develop harmonics mitigation filters. This paper presents a shunt connected L type filter to eliminate harmonics. The filter posse's battery connected across the capacitor. The battery is responsible for keeping the voltage constant across the capacitor and avoids the losses, the proposed filter injects a current to eliminate the harmonics components. Injection of current carried out by achieving the GATE Pulses. In order to achieve better GATE Pulses unit vector template is used. This technique generates the reference current. Reference and actual current applied to hysteresis limit to generate the pulses for proper operation of the filter. The effectiveness of the designed filter is investigated under two types of load. Finally a comparative analysis is made between one of the existing techniques to prove its superiority. The work is verified through MATLAB/SIMULINK.