绕线式转子绕组的谐波分析  

Harmonic Analysis for Wound-rotor Winding in Induction Machine

作　　者：阚超豪[1] 王雪帆[1] 

机构地区：[1]华中科技大学电气与电子工程学院,湖北武汉430074

出　　处：《大电机技术》2007年第4期18-22,共5页Large Electric Machine and Hydraulic Turbine

摘　　要：绕线式异步电机转子相电势是由其线圈电势矢量叠加得到,其电流在空间产生的磁势除基波外还含有一系列的高次谐波,当高次谐波幅值较大时,对电机的起动和运行性能有较大的影响,本文采用槽矢量法对每相均具有两种匝数的转子绕组建立了等效电路,推导出参数的计算公式,通过分析和编程,得到各次谐波的m相正、反转合成磁势相对于基波的比值,为电机设计和绕组选择提供评估参考,最后给出了一组仿真结果。Phase electromotive-force can be obtained by compute superposition of winding electromotive-force for wound-rotor induction motor, The MMF（Magnetic Motive Force） in the air-gap produced by rotor current which arised by the electromotive-force contains a series of high order harmonics besides basic one, When the percentage of MMF of high order harmonic field in the air-gap is big enough, It may bring a big effect on the motor＇s starting and running performance, This paper presents a equivalent circuit for rotor windings which have two kinds number of turns in each phase basing on slot-vector method, gain the ratio of complex MMF of the m-phase of each harmonic wave which have different turns relative to basic one, This work will provide an evaluation method for motor design and winding selection, In the end, a possible simulation result is given.

关 键 词：绕线式异步电机 转子电势 m相合成磁势 

分 类 号：TM301.44[电气工程—电机]