基于预测控制的无电解电容功率变换器电机驱动系统

doi:10.19595/j.cnki.1000-6753.tces.181142

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摘要

研究一种无电解电容功率解耦电路及对应的控制策略。该电路根据电网脉动功率和电机功率之间的关系,实现电网侧和电机侧功率解耦,有效抑制直流母线电压波动。基于该电路工作特性,提出预测控制算法以提高无电解电容驱动系统的功率因数,并简化控制器设计。推导并分析电机转矩脉动的原因,提出一种主动阻尼算法抑制电机转矩脉动,进而提高系统的稳定性。构建基于该新型功率解耦电路的永磁同步电机驱动系统,通过仿真和实验,验证了理论分析的有效性和优越性。

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	张超
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	杜怿

关键词 ：无电解电容, 永磁同步电机, 预测控制算法, 母线电压波动, 转矩脉动抑制

Abstract：

This paper presents a novel electrolytic capacitor-less (ECL) power decoupling circuit and control strategy. According to the relationship between the pulsating power of the power grid and the motor power, the circuit realizes power decoupling between the grid and the motor, which effectively suppresses the DC bus voltage fluctuation. Based on the characteristics of this circuit, a predictive control algorithm is proposed to improve the input power factor of the ECL drive system and simplify the controller design. The reason of motor torque ripple is derived and analyzed. An active damping algorithm is proposed to suppress the motor torque ripple, which improves the stability of the system. The permanent magnet synchronous motor (PMSM) drive system is constructed based on this novel circuit. The simulation and experiment show the effectiveness and superiority of theoretical analysis.

Key words： Electrolytic capacitor-less permanent magnet synchronous motor predictive control DC-link voltage ripple torque ripple reduction

收稿日期: 2018-07-01 出版日期: 2018-12-29

PACS:

TM351

基金资助:

国家自然科学基金（51777089、51477069）和江苏高校优势学科建设工程资助项目

通讯作者: 朱孝勇男,1974年生,博士,教授,研究方向为永磁电机设计、分析与驱动控制。E-mail: zxyff@ujs.edu.cn

作者简介: 张超男,1973年生,博士,副教授,研究方向为电机功率变换器拓扑及控制。E-mail: superbow@ujs.edu.cn

引用本文:

张超, 胡鑫, 朱孝勇, 徐磊, 杜怿. 基于预测控制的无电解电容功率变换器电机驱动系统[J]. 电工技术学报, 2018, 33(24): 5649-5658. Zhang Chao, Hu Xin, Zhu Xiaoyong, Xu Lei, Du Yi. Electrolytic Capacitor-less Motor Drive System Based on Predictive Control. Transactions of China Electrotechnical Society, 2018, 33(24): 5649-5658.

链接本文:

https://dgjsxb.ces-transaction.com/CN/10.19595/j.cnki.1000-6753.tces.181142 https://dgjsxb.ces-transaction.com/CN/Y2018/V33/I24/5649

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