研究目的
Investigating the performance of Proportional Integral (PI) and Proportional Resonant (PR) controllers in current control strategies for a three-phase single-stage grid-connected PV system.
研究成果
The PR controller demonstrates superior performance in tracking sinusoidal reference currents without steady state error and in reducing harmonic content compared to the PI controller. This results in higher power quality injected into the grid. The study suggests that PR controllers offer a more effective solution for grid-connected PV systems.
研究不足
The study is based on simulation results, which may not fully capture all real-world conditions and variations. The use of an L filter, while simplifying the system, may not be as effective as an LCL filter in certain scenarios.
