Implementation of Sparrow Search Algorithm Tuned AWFOPI Controller for Three Phase Grid-Tied SPV-DSTATCOM Under Dynamic Loading Conditions

Abstract

Solar photovoltaic (SPV) power is highly intermittent as its power generation is highly affected by atmospheric variation. Thus, high penetration of SPV into the distribution network severely threatens grid stability. Therefore, the need for ancillary compensation support is increasingly important. However, the additional converter arrangement for compensation incurs extra costs. In this article, a sparrow search algorithm tuned anti-windup fractional order proportional integral (AWFOPI) controller for a three-phase grid-tied SPV-distribution static compensation system (DSTATCOM). During the daytime, active load demand is intended to be met by the system configuration powered by SPV equipped with the proposed control approach. And also provide reactive load demand such that UPF operation with the grid is always ensured. After satisfying load needs, excess SPV power is pumped into the grid. The system functions as DSTATCOM, supporting the grid reactive power needs throughout the night when SPV power is unavailable. This controller is tested in Matlab via a series of simulated experiments. The simulation results show that the proposed controls operate effectively under unfavourable scenarios.