基于共中线拓扑的开绕组异步电机控制策略研究  

Research on Control Strategy of Dual Inverter Open-end Winding Induction Motor Drive With Common Mode Connected DC Buses

作　　者：杨淑英[1] 胡晓海 符焕 孙光淼 张兴[1] 王庆龙[2] YANG Shuying;HU Xiaohai;FU Huan;SUN Guangmiao;ZHANG Xing;WANG Qinglong(School of Electrical Engineering and Automation,Hefei University of Technology,Hefei 230009,Anhui Province,China;Department of Electronics and Electrical Engineering,Hefei University,Hefei 230601,Anhui Province,China)

机构地区：[1]合肥工业大学电气与自动化工程学院,安徽省合肥市230009 [2]合肥学院电子信息与电气工程系,安徽省合肥市230601

出　　处：《中国电机工程学报》2020年第11期3681-3690,共10页Proceedings of the CSEE

基　　金：国家自然科学基金项目(51877062)。

摘　　要：为使开绕组拓扑结构同时具备独立母线开绕组拓扑的灵活性和共母线开绕组拓扑在电磁干扰和容错方面的优势,采用一种共中线双逆变器变流结构实现开绕组异步电机的控制。为探讨这一拓扑的控制策略,将一台逆变器与直流电源相连,而另一台逆变器仅由电容支撑。以此为基础对两逆变器的功率分配、电容电压控制、零序电流及中点电位平衡控制等核心问题进行了研究,并通过实验对所设计的控制策略进行验证。Aiming to integrate the flexibility of the DC-bus design in the separate DC-bus open end winding drive topology with the merits of the single DC-bus configuration in electromagnetic interference as well as the fault tolerant operation,a topology with common mode connected DC buses was used in this paper,to drive the open end winding motor.To investigate the control strategy of this novel drive configuration,one of the two inverters was supplied by a DC source,while the other was connected with a floating capacitor.Strategies for power distribution,capacitor voltage control,zero-sequence current and neural point voltage control were studied in this paper.Finally,the overall control strategy was verified through experiments.

关 键 词：共中线开绕组 功率分配 电容电压控制 中点电压控制 

分 类 号：TM343[电气工程—电机]