一种 MFAC补偿的无串联型 DVR复合控制策略研究

摘要

Non-series transformer dynamic voltage restorer ( DVR) control strategy is studied.In order to improve the speed and the steady state accuracy of voltage, current double closed loop PI con-trol, a model-free control was used as a compensation to form a composite control method.In the Mat-lab/Simulink to create simulation model, the simulation results show that the composite control method has great speed and excellent steady accuracy.%对无串联型DVR的逆变器控制策略进行研究，针对滤波电容电流内环、电压瞬时值外环的双闭环PI控制在快速性和精确电压补偿方面的不足，提出在双闭环PI控制的外环增加无模型自适应控制，形成复合控制算法，以提高控制器对信号的跟踪能力。通过Matlab／Simulink的建模仿真，表明该复合控制算法具有动态响应速度快、输出电压稳态精度高等特点。