三次谐波注入下多相感应电机稳态性能分析  

Steady-State Performance Analysis of Multiphase Induction Motor with Third-Order Harmonic Injection

作　　者：孟繁庆 易新强[1] 刘海涛[1] 王东[1] Meng Fanqing;Yi Xinqiang;Liu Haitao;Wang Dong(National Key Laboratory of Science and Technology on Vessel Integrated Power System Naval University of Engineering,Wuhan 430033 China)

机构地区：[1]海军工程大学舰船综合电力技术国防科技重点实验室,武汉430033

出　　处：《电工技术学报》2020年第16期3396-3405,共10页Transactions of China Electrotechnical Society

基　　金：国家自然科学基金重大项目(51690181);国家自然科学基金青年基金项目(5180702);湖北省自然科学基金面上项目(2019CFB607)资助。

摘　　要：针对采用3次谐波注入的非正弦供电多相感应电机,该文提出一种基于等效电路与分布磁路法的稳态性能迭代计算方法,对3次谐波注入参数对于电机稳态性能的影响规律进行定量分析。结果表明,当3次谐波注入满足气隙磁通密度中3次谐波与基波“峰谷相对”,且3次谐波磁通密度幅值为基波的1/6时,谐波注入对电机稳态性能的优化效果达到最佳。以某型45kW十五相感应电机为对象进行计算与实验验证,结果表明,在气隙磁通密度最大值和电流有效值不变的情况下,采用3次谐波注入时的基波电压与输出功率相对无注入情况最大可提升约13%。For the multi-phase induction motor with non-sinusoidal supply,an iterative method based on equivalent circuit and distributed magnetic circuit method is proposed in this paper.In the case of the 3-order harmonic injection,the steady-state performance indexes are calculated,and the quantitative relationship between 3-order harmonic injection parameters and steady state performance indexes is obtained and analyzed.The results show that the 3-order harmonic injection has the best effect on the optimization of the steady-state performance indexes of the motor,when the 3-order harmonic and fundamental component of the air-gap magnetic density satisfies the relative positional relationship of“peak-to-valley”and the amplitude ratio equals 1/6.The 3-order harmonic injection is implemented on a 45kW fifteen-phase induction motor.As the maximum value of air-gap magnetic density and current effective value remain constant,the experimental results show that the fundamental voltage and the output power can be increased by about 13%in comparison to the non-harmonic condition.

关 键 词：多相感应电机 稳态性能 3次谐波注入 分布磁路法 

分 类 号：TM343[电气工程—电机]