Electrolytic Capacitor-less Motor Drive System Based on Predictive Control

被引：0
|
作者：
Zhang C. [1 ]
Hu X. [1 ]
Zhu X. [1 ]
Xu L. [1 ]
Du Y. [1 ]
机构：
[1] School of Electrical and Information Engineering, Jiangsu University, Zhenjiang
来源：
Zhu, Xiaoyong (zxyff@ujs.edu.cn) | 2018年 / China Machine Press卷 / 33期
关键词：
DC-link voltage ripple; Electrolytic capacitor-less; Permanent magnet synchronous motor; Predictive control; Torque ripple reduction;
D O I：
10.19595/j.cnki.1000-6753.tces.181142
中图分类号：
学科分类号：
摘要：
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. © 2018, Electrical Technology Press Co. Ltd. All right reserved.
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页码：5649 / 5658
页数：9
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