无电解电容逆变器永磁同步电机驱动系统控制研究  

Control of Inverter Without Electrolytic Capacitor for Permanent Magnet Synchronous Motor Drive

作　　者：尹泉[1] 吴根平[1] 罗慧[1] 陈凯[1] 刘缘[1] 

机构地区：[1]华中科技大学自动化学院多谱信息处理技术国家级重点实验室,湖北武汉430074

出　　处：《电气传动》2015年第7期3-6,共4页Electric Drive

基　　金：国家自然科学基金(61374049);中央高校基本科研业务费(2014QN169)

摘　　要：在单相交流输入逆变器永磁同步电机驱动系统中,母线侧通常采用大电解电容使母线电压稳定。然而大电解电容体积大、寿命有限,而且为了改善网侧电流质量,还需要增加功率因数校正(PFC)电路。为了解决这些问题,分析了母线无电解电容的电机驱动系统的特性,提出了一种基于"平均电压裕度"的网侧高功率因数的dq轴电流分配策略。仿真实验结果验证了所提出的控制方法的正确性和可行性。A large DC-link electrolytic capacitor is usually used to provide stable DC-link voltage in a single- phase input inverter for interior permanent magnet synchronous motor （IPMSM） drive. However, the large electrolytic capacitor occupies a large volume and its lifetime limits the lifetime of the converter in many cases. Power factor correction （PFC） circuits are added to correct the grid current quality. In order to deal with these issues aforementioned, a new motor drive system without DC-link electrolytic capacitors was proposed and a new d-and q- axis current distribution strategy based on the concept of ＂average voltage margin＂ for the high grid power factor was presented. The simulation results illustrate the validity of the proposed method.

关 键 词：单相输入 无电解电容 永磁同步电机 高功率因数 平均电压裕度 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]