一种基于电路等效替换的整流器容错控制方法  

A FAULT-TOLERANT CONTROL METHOD OF RECTIFIER BASED ON CIRCUIT EQUIVALENT REPLACEMENT

作　　者：秦伟 冯延晖[1] 赵勇 邱颖宁[1] Qin Wei;Feng Yanhui;Zhao Yong;Qiu Yingning(School of Energy and Power Engineering,Nanjing University of Science and Technology,Nanjing 210094,China)

机构地区：[1]南京理工大学能源与动力工程学院

出　　处：《太阳能学报》2019年第10期2806-2813,共8页Acta Energiae Solaris Sinica

基　　金：江苏省自然科学基金（BK20131350）;国家自然科学基金（51505225）;中央高校基本科研业务费专项（30915011324）

摘　　要：对三相桥式PWM整流器中单个功率开关管开路时的电路模型进行化简,并对其分析和讨论,提出一种基于电路等效替换的容错控制算法。当开路故障发生时,在不改变整流器拓扑结构的前提下,该方法能有效减少交流侧电流畸变,维持直流母线电压稳定。通过仿真和实验验证所提出的容错控制方法的正确性和有效性。The circuit model of single open-circuit fault in three-phase bridge PWM converter is simplified. A faulttolerant control method based on equivalent circuit substitution is proposed. When open-circuit fault occurs,the method allows to effectively reduce the current distortions of AC side and maintain DC voltage stability while the topology of PWM converter remains unchanged. The correctness and validity of the proposed method are verified by simulation and experiments.

关 键 词：整流器 开路故障 容错控制 空间矢量脉宽调制 

分 类 号：TM461[电气工程—电器]