电气传动2019，Vol.49Issue(5)：25-30,6.DOI:10.19457/j.1001-2095.dqcd18546
无电解电容PMSM驱动系统过调制算法研究
Research on Over-modulation Algorithm Based on Permanent Magnet Synchronous Motor Driver System Without Electrolytic Capacitor
摘要
Abstract
The energy of DC-link capacitance is very little in permanent magnet synchronous moto(r PMSM)driver system without electrolytic capacitor,and the grid input power could be affected by output power of inverter. Therefore, the grid current wave can be improved by controlling the output power of inverter indirectly. Due to the lack of smoothing capacitor with high capacitance in DC-link of PMSM driver system without electrolytic capacitor,the DC-link voltage output from single-phase rectifier will be fluctuated periodically,so as to result in the space vector modulation (SVPWM)algorithm to enter the over-modulation region periodically. The output power of inverter is changed in the traditional over-modulation algorithms,and deviated from the control goal. To solve the problem,a minimum power error over-modulation algorithm based on binary search method was proposed. The proposed algorithm made the output power of inverter follow its given power with minimal error. Finally,the validity of the proposed algorithm is demonstrated using a simulation of Simulink.关键词
无电解电容/过调制/空间矢量脉宽调制/永磁同步电机Key words
without electrolytic capacitor/over-modulation/space vector pulse width modulation(SVPWM)/permanent magnet synchronous moto(r PMSM)分类
信息技术与安全科学引用本文复制引用
罗慧,尹家俊,尹泉..无电解电容PMSM驱动系统过调制算法研究[J].电气传动,2019,49(5):25-30,6.基金项目
国家自然科学基金(61374049) （61374049）
中央高校基本科研业务费专项资金(2017KFYXJJ174) （2017KFYXJJ174）
