无电解电容永磁同步电机驱动系统控制策略综述

Control Strategy Overview of Permanent Magnet Synchronous Motor Drive System Without Electrolytic Capacitor

永磁同步电机驱动系统在家用电器中有着广泛应用,电解电容是系统中最薄弱的部分,制约着系统的寿命。近几年无电解电容永磁同步电机驱动系统成为主要的研究热点,国内外很多学者针对无电解电容电机驱动系统提出各种各样的控制策略。无电解电容电机驱动系统的控制策略主要目的是实现高功率因数,抑制输入电流谐波。分析了无电解电容电机驱动系统实现高功率因数的基本思想,对实现高功率因数的功率控制策略进行归纳和分类。最后,综合比较不同控制策略的优缺点,给出了无电解电容电机驱动系统的研究建议。

Permanent magnet synchronous motor drive system has been widely used in household appliances,the electrolytic capacitor is the weakest part that limit the lifetime of system. Permanent magnet synchronous motor drive system without electrolytic capacitor has become the main research focus in recent years. Aiming to obtain high power factor and suppress the grid current harmonics, many control strategies based on the drive system without electrolytic capacitor have been proposed. The basic idea of high power factor of the drive system without electrolytic capacitor was analyzed and the power control strategies were classified. Finally, compared the advantages and disadvantages between different control strategies, the research suggestion of the drive system without electrolytic capacitor were given.