Real-Time Implementation of SAPF-Coupled PV Grid Connected Using Artificial Hummingbird Algorithm for Power-Quality Enhancement

This manuscript proposes the Shunt Active Power Filter (SAPF) coupled photovoltaic (PV) in the grid system. The proposed system implies photovoltaic arrays that connected to the grid via the inverter, which also acts as a bidirectional coupled shunt active power filter (SAPF). Parallel to the active filter’s direct current (DC) side, the photovoltaic is connected. New versions of the Artificial Hummingbird algorithm (AHA) and Particle Swarm optimization (PSO) are introduced for the most effective layout of the DC-voltage control and power quality improvement. This system has many advantages for power quality enhancement such as: harmonics mitigation caused by non-linear loads, power factor correction, and finally an injection of clean active power to the load. Moreover, the suggested system has been validated experimentally using OPAL RT-4510v real-time simulator coupled with the OP-8660 Hardware-In-Loop (HIL) controller and data acquisition platform. The test results demonstrate that the introduced controller minimizes the response time, reaches rapidly to steady-state value, and significantly decreases the total harmonic distortion (THD) than PSO although the PSO has equal or slightly less overshoot. This study also demonstrates the power sharing between the main grid and the solar PV-source.