3次谐波电流注入对五相感应电机系统运行性能影响分析

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摘要五相感应电机系统采用集中整距绕组结构并由非正弦供电,可以通过注入谐波改善电机的气隙磁场,从而提高电机的输出功率。本文在3次谐波注入控制策略研究基础上,从母线电压利用率、系统功率因数、效率及输出转矩等性能指标出发,深入研究了3次谐波注入对系统的运行性能影响。最后,搭建了系统实验平台,对实验室一台5.5kW五相集中整距绕组感应电机进行了相关实验。结果表明,在五相集中整距绕组感应电机系统中,通过注入按照一定规律变化的3次谐波,可以有效改善电机系统的运行性能。

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	朱鹏
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	魏永清

关键词 ：气隙磁通密度, 电压利用率, 功率因数, 效率, 转矩密度

Abstract：The air-gap magnetic density of five-phase induction motor with concentrated full-pitch windings structure can be improved by harmonic injection, and accordingly the power density of five-phase induction motor will increase. Based on the third-harmonic injected control strategy of five-phase induction motor, the effects of third harmonic injection on some important evaluating indexes of the system were analyzed, such as the DC-bus voltage utilization ratio, power ratio, efficiency, torque density, and so on. Finally, the experimental platform of five-phase induction motor system was built. The experiments were carried out on a 5.5kW, five-phase concentrated full-pitch windings induction motor. The results verify that the operation performance of five-phase induction motor system can be improved effectively by third harmonic injection with special varied regulation.

Key words： Air-gap magnetic flux density voltage utilization ratio power ratio efficiency torque density

收稿日期: 2016-02-24 出版日期: 2016-11-01

PACS:

TM304.1

基金资助:国家自然科学基金资助项目（51407188、51277177、51307180）

作者简介: 朱鹏男,1984年生,博士,讲师,研究方向为电力电子与电力传动等。E-mail: zhupeng840608@163.com（通信作者）乔鸣忠男,1971年生,教授,博士生导师,研究方向为电力系统自动化、船舶电力推进电机及其控制。E-mail: qiaomingzhong@126.com

引用本文:

朱鹏, 乔鸣忠, 张晓锋, 易俊, 魏永清. 3次谐波电流注入对五相感应电机系统运行性能影响分析[J]. 电工技术学报, 2016, 31(20): 102-110. Zhu Peng, Qiao Mingzhong, Zhang Xiaofeng, Yi Jun, Wei Yongqing. The Effects of Third Harmonic Current Injection on Operation Performance of Five-Phase Induction Motor. Transactions of China Electrotechnical Society, 2016, 31(20): 102-110.

链接本文:

https://dgjsxb.ces-transaction.com/CN/Y2016/V31/I20/102

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