摘要
提出了一种自适应比例控制,该控制策略采用误差反向传播算法在线自适应调节参数。为比较常规比例控制与自适应比例控制,将这两种控制策略结合相应的前馈控制分别应用在结构类似的单相统一电能质量调节器(UPQC)的并联逆变器与串联逆变器控制中。采用Matlab/Simulink对所提控制策略进行精确仿真,详细分析了系统参数选择对单相UPQC的运行效果影响。仿真结果表明这两种比例控制能使单相UPQC运行良好,其中自适应比例控制能在线自适应调节参数,避免了繁琐的常规比例参数试凑过程。所提控制策略与仿真分析能为UPQC的实现及应用提供一定参考。
An adaptive proportion control strategy which utilizes error back propagation algorithm to on-line adaptively regulate the proportion parameter is proposed.To compare the adaptive proportion control with the conventional pro-portion control,the two control strategies combining the corresponding feed-forward controllers are applied in shunt in-verter and series inverter of the single-phase unified power quality conditioner（UPQC） which are similar structure,separately.Using the Matlab/Simulink,the proposed control strategy is analyzed and the impact of system parameters selection is illustrated.The simulation results show that two kinds of proportion control make the singlephase UPQC run very well,where adaptive proportion control can on-line adaptively regulate the proportion parameter to avoid the tedious process of conventional proportion parameter regulation.The proposed control strategy and simulation analysis can provide certain reference in the implementation and application of the UPQC.
出处
《电力电子技术》
CSCD
北大核心
2011年第1期51-53,共3页
Power Electronics
关键词
统一电能质量调节器
自适应比例控制
反向传播算法
unified power quality conditioner
adaptive proportion control
back propagation algorithm
