Suppression of Beat Phenomenon for Electrolytic Capacitorless Motor Drives Accounting for Sampling Delay of DC-Link Voltage

被引：13

作者：

Ding, Dawei ^{[1
]}

Zhao, Nannan ^{[1
]}

Wang, Gaolin ^{[1
]}

Zhang, Guoqiang ^{[1
]}

Zhang, Xueguang ^{[1
]}

Mijatovic, Nenad ^{[2
]}

Xu, Dianguo ^{[1
]}

机构：

[1] Harbin Inst Technol, Sch Elect Engn & Automat, Harbin 150001, Peoples R China

[2] Tech Univ Denmark, Ctr Elect Power & Energy, Dept Elect Engn, DK-2800 Lyngby, Denmark

来源：

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS | 2022年 / 69卷 / 02期

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

Pulse width modulation; Delays; Motor drives; Synchronous motors; Permanent magnet motors; Capacitors; Stators; Beat phenomenon; dc-link voltage sampling delay; electrolytic capacitorless; motor drive; voltage reconstruction; STABILIZATION; FREQUENCY; PWM; COMPENSATION; CAPACITANCE; INVERTER;

D O I：

10.1109/TIE.2021.3063984

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Beat phenomenon is an important issue for the practical application of electrolytic capacitorless motor drives. In this study, the characteristics of stator current harmonics caused by the voltage sampling delay are analyzed. Further, the beat phenomenon generated from the interaction between the harmonics and the fundamental currents is investigated, and the envelope feature of the stator current is derived mathematically. For the purpose of suppressing the beat phenomenon, a voltage reconstruction strategy is proposed to reduce the influence of dc-link voltage sampling delay at the six times of grid frequency. By utilizing the reconstructed dc-link voltage for calculation of PWM duty ratio, the beat phenomenon can be attenuated significantly. The proposed method can be integrated into motor control system easily. Experimental results show the effectiveness of the proposed strategy in a prototype of electrolytic capacitorless permanent magnet synchronous motor drive.

引用

页码：1167 / 1176

页数：10

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