电工技术学报2017，Vol.32Issue(16)：115-123,9.DOI:10.19595/j.cnki.1000-6753.tces.161289
PWM逆变器供电引起的轴向磁通非晶电机谐波损耗的解析计算
Analytical Calculation of Harmonic Losses of an Axial Flux Amorphous Motor Caused by PWM Inverter Supplying
摘要
Abstract
Amorphous alloys are considered as an appropriate core material for high-frequency motors because of their outstanding low power loss characteristics. When supplied by a PWM inverter, however, the harmonic losses of high-frequency motors will enormously increase. The key for designing and optimizing an amorphous alloy axial-flux permanent magnet motor is the fast and accurate calculation of harmonic losses during the original designing stage. In this paper, because of the large time consuming of three dimensional time step finite element analysis method, the present multilayer coupled model is further improved. An analytical method of air gap flux density is derived which can take high order carrier harmonics into account. The analytical methods of stator core losses and rotor eddy current losses are then deduced in consideration of the influence of eddy current reaction. The analytical calculation results of harmonic losses are compared with measured results and those obtained by the three dimensional FEA method. It is shown that the average calculation error of rotor losses is 9.69％, which means the improved analytical method features in high accuracy.关键词
非晶合金/轴向磁通永磁电机/PWM逆变器/谐波损耗/解析方法Key words
Amorphous alloy/axial-flux permanent magnet motor/PWM inverter/harmonic losses/analytical method分类
信息技术与安全科学引用本文复制引用
朱龙飞,朱建国,佟文明,韩雪岩..PWM逆变器供电引起的轴向磁通非晶电机谐波损耗的解析计算[J].电工技术学报,2017,32(16):115-123,9.基金项目
国家重点研发计划(2016YFB0300500)、国家科技支撑计划(2013BAE08B00)、国家自然科学基金(51307111)和辽宁省教育厅科学技术研究项目(L2013049)资助. （2016YFB0300500）
