Power Quality Improvement Grid Integrated Photovoltaic with LCL Filter Using DQ Controller

Grid-interactive solar photovoltaic (PV) systems are necessary for the current global scenario owing to their low cost and pollution-free energy source. The integration of PV in power grid needs be stabilized. To address this, this paper presents a composite controller that can synchronize Photovoltaic Grid, with bidirectional flow Grid. proposed technique is explored both RL LCL filters. With synchronization generation, control loop quality disturbance mitigation simulated. multicarrier SVPWM DQ used on Grid Connected converter mitigate Power Quality disturbances. MATLAB Simulink model developed setup validity evaluated. PI controllers applied DQ-controlled integrated grid. parameters THD found intact simulation showed filter has an incremental performance progression than using filter. There around 3 4% improvement while filters instead integration.