一种新型三相四桥臂控制策略  

A new three-phase four-leg control strategy

作　　者：罗耀华[1] 赵旺彬 

机构地区：[1]哈尔滨工程大学自动化学院,黑龙江哈尔滨150001

出　　处：《应用科技》2017年第2期89-94,共6页Applied Science and Technology

基　　金：国家自然科学基金项目(P041914039)

摘　　要：针对三相四桥臂逆变器带不平衡和非线性负载的各种控制策略,文中对逆变器在有源阻尼和重复控制下的控制策略进行了研究,通过简化控制器提出了一种用有源阻尼代替电流环和陷波器的控制策略,能有效节约微控制器的资源,减轻电源重量。第四桥臂调制方式采用类似SVPWM调制,不需要进行解耦。通过MATLAB/Simulink仿真模型对所构建的逆变器系统进行仿真,仿真结果验证了上述控制策略的正确性和有效性。In regard to the three-phase four-leg inverter with unbalanced load and non-linear control strategy,this paper studied the inverter control strategy under the active damping and repetitive control,proposed active damping control instead of current loop and notch filter,which simplified the controller and reduced the weight of the power supply. The fourth leg needs modulation,which is similar to SVPWM and no decouple is needed. A Simulink model was built for three-phase four-leg inverters,then the result of simulation verified the correctness and effectiveness of the proposed control strategy.

关 键 词：三相四桥臂 有源阻尼 重复控制 比例谐振 电压前馈 

分 类 号：TM921.5[电气工程—电力电子与电力传动]