基于有功电流预测算法的三相VSR软启动策略研究

Research on Three-phase VSR Soft Start Strategy Based on Active Current Prediction Algorithm

针对三相VSR启动过程存在电流冲击问题,在分段控制的基础上,提出了一种基于瞬时功率理论的有功电流预测的控制方法,构建软启动电流给定曲线,达到启动速度快、电压电流曲线光滑、无冲击和无超调的效果。仿真和实验证明了策略的正确性和可行性。

Aiming at the current surge problem in the three-phase VSR starting process,based on the segmentation control,a control method based on instantaneous power theory for active current prediction was proposed. The soft start current reference curve was constructed to achieve fast starting speed,voltage and current smooth curves,no impact and overshoot. Simulation and experiment prove the correctness and feasibility of the strategy.