三相供电交流电机驱动系统无电解电容控制技术综述*

doi:10.11985/2021.04.002

摘要/Abstract

摘要：

随着永磁电机驱动控制技术的发展,系统可靠性、寿命和功率密度逐渐成为该领域关注的重点。三相供电交流电机无电解电容驱动系统具有体积小、寿命长、可靠性高的优点,是高品质电机驱动系统发展的重要方向之一。目前,交流电机无电解电容驱动系统已经在工业领域得到应用。围绕驱动系统稳定运行和机侧性能控制技术两方面,对交流电机无电解电容驱动系统的发展现状进行归纳和总结,指出现有方案的优缺点。最后,对交流电机无电解电容驱动系统目前亟需解决的难点问题和未来发展趋势进行总结和展望。

关键词: 交流电机, 无电解电容驱动系统, 稳定性控制, 机侧性能控制

Abstract:

Along with the development of the control technology of PMSM motor, reliability, life time and power density have become important issues. The electrolytic capacitorless AC motor drive with three-phase power supply holds advantages of small volume, long service time and high reliability, which is an important development direction of motor drives. Currently, electrolytic capacitorless AC motor drives are already applied in industry. Based on the stable operation of the drive and the performance control technology of the machine side, the development status of the electrolytic capacitorless AC motor drive is summarized and the advantages and disadvantages of the existing schemes are pointed out. Finally, the current difficult problems and future development trend of the electrolytic capacitorless AC motor drive are summarized and prospected.

Key words: AC motor, electrolytic capacitorless drive, stability control, motor side performance control

中图分类号:

TM341

丁大尉, 王高林, 张国强, 徐殿国. 三相供电交流电机驱动系统无电解电容控制技术综述^*[J]. 电气工程学报, 2021, 16(4): 2-11.

DING Dawei, WANG Gaolin, ZHANG Guoqiang, XU Dianguo. Review of Control Technology for Electrolytic Capacitorless AC Motor Drives with Three-phase Power Supply[J]. Journal of Electrical Engineering, 2021, 16(4): 2-11.

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弱磁控制方法	优点	缺点
模型法^[18,19,20]	可实现母线电压最大化利用	参数依赖性强,转矩脉动大
最小母线电压法^[21]	转矩脉动小,可靠性高	母线电压利用率低
电压差法^[22]	可以较好地平衡转矩脉动和母线电压利用率	转矩脉动仍然存在于整个弱磁区间

拍频抑制方法	优点	缺点
母线电压重复观测器法^[35]	母线电压预测较为准确,拍频抑制效果好	当母线电压周期性较差时,重复控制器效果不佳
母线电压主要谐波重构法^[27]	构造简单,易于工程实现,且对母线电压周期性要求不高	仅补偿母线电压主要频次谐波
限波器法^[28]	设计灵活,形成闭环控制系统,稳定性较好	当负载波动频率变化时,需要重新配置控制器参数