电气传动2023，Vol.53Issue(12)：40-46,7.DOI:10.19457/j.1001-2095.dqcd24931
无电解电容变频器的母线电压振荡抑制研究
Research on Bus Voltage Oscillation Suppression of Electrolytic Capacitor-less Inverter
杨逸帆 1尹晗 2陆治冶 3于雪莹3
作者信息
- 1. 航天规划设计集团有限公司,北京 100162
- 2. 沈阳航天三菱汽车发动机制造有限公司,辽宁 沈阳 110179
- 3. 东北农业大学电气与信息学院,黑龙江 哈尔滨 150030
- 折叠
摘要
Abstract
In order to solve the problems of large volume and short service life of the traditional electrolytic capacitor frequency converter,the thin film capacitor was used to replace the electrolytic capacitor to constitute the AC-DC-AC frequency converter without electrolytic capacitor.Aiming at the problem of bus voltage oscillation in the process of low frequency V/F operation of electrolytic capacitor-less inverter,firstly,the bus voltage ripple and resonance in different working modes were analyzed according to the equivalent circuit model of induction motor,and the stability condition of electrolytic capacitor-less drive system was analyzed by using Rous stability criterion.Secondly,according to the mathematical model of the drive system without electrolytic capacitor,the relationship between the bus voltage and the stator reactive current during the oscillation process was analyzed.Finally,a reactive current feedback control strategy based on stator voltage direction was proposed to suppress bus voltage oscillation and improve system stability.The simulation and experimental results show that the proposed control strategy can realize the stable operation of the induction motor in the global range and effectively improve the stability of the system.关键词
无电解电容变频器/无功电流/感应电机/谐振抑制Key words
electrolytic capacitor-less inverter/reactive current/induction motor/resonance suppression分类
信息技术与安全科学引用本文复制引用
杨逸帆,尹晗,陆治冶,于雪莹..无电解电容变频器的母线电压振荡抑制研究[J].电气传动,2023,53(12):40-46,7.
