电压型逆变器驱动的多套Y绕组电动机空间矢量电压研究  

Analysis of Space Vector Built in Motor With Multi-Set Y Connected Windings Fed by Voltage Source Inverter

作　　者：王铁军[1,2] 辜承林[1] 陈永冰[3] 单潮龙[3] 

机构地区：[1]华中科技大学电气与电子工程学院 [2]海军工程大学电气与信息工程学院武汉430033 [3]海军工程大学电气与信息工程学院

出　　处：《电工技术学报》2006年第5期64-67,共4页Transactions of China Electrotechnical Society

摘　　要：研究了电压型逆变器(VSI)驱动的多套Y绕组结构电动机的空间矢量电压(SVV)。根据SVV和磁链矢量之间存在着近似的积分关系,提出用该量替代磁场量进行谐波分析,以用于评估多相交流电动机运行性能;根据伏秒平衡原理,求取了中点不相连的多套Y绕组合成SVV;总结了各Y绕组之间的空间相移与绕组电压相移的一般性规律;以4Y(十二相)绕组结构为例,理论分析了当一组三相逆变桥故障时绕组的空间矢量电压谐波,并通过仿真对分析结果进行了验证。Space vector voltage（SVV） of multi-phase motor with multi-set Y-connected windings fed by voltage source inverter（VSI） is studied. SVV has similar harmonic components as fluxlinkage vector, so it is proposed to be used for harmonic analyzing instead of magnetic quantities. A new strategy is introduced to obtain SVV of motor constructed by multi-set Y-connected windings based on volt-second balance theorem. A general conclusion about relationship between space phase shifts of Y-connected windings and their voltage phase shifts is acquired. Multi-phase motor with 4Y windings is analyzed as an example when a typical fault happens in terms of SVV, and the result is verified with simulation.

关 键 词：多相电动机 电压型逆变器 Y接绕组 空间矢量 

分 类 号：TM301.2[电气工程—电机]