单相无电解电容VIENNA整流器研究  

Single phase VIENNA rectifier without electrolytic capacitor

作　　者：李治 程红[1] 赵志浩 申伟良 王聪[1] LI Zhi;CHENG Hong;ZHAO Zhi-hao;SHEN Wei-liang;WANG Cong(Sehool of Mechanical Electronie and lnformation Engineering,China University of Mining and Technology(Beijing),Beijing 100083,China)

机构地区：[1]中国矿业大学(北京)机电与信息工程学院,北京100083

出　　处：《煤炭工程》2020年第10期170-175,共6页Coal Engineering

基　　金：国家自然科学基金资助项目(51577187);中央高校基本科研业务费项目(2009KJ02,2020YJSJD03)。

摘　　要：针对煤矿井下空间狭小,粉尘、瓦斯浓度高,且传统矿用供电电源整流级中大容量电解电容寿命短、热稳定性差等固有缺陷严重影响整流器可靠性以及煤矿井下人员安全的问题。本文设计了一种无电解电容的VIENNA功率因数校正(PFC)升压整流器,通过在直流母线增加一个改进型Buck-Boost变换器解耦直流环节的有功功率,从而迫使电压纹波转移到辅助电容器,使直流环节电容显著降低。因此,体积庞大的电解电容器可以用可靠性高的小型薄膜电容器代替。文章首先介绍VIENNA整流器直流母线电容与直流侧电压纹波关系,随后阐述无电解电容的实现原理及其参数定量设计的方法,最后通过仿真验证了理论分析和参数设计方法的有效性。Aiming at the problems of narrow space in coal mines,high concentration of dust and gas,and the shortcomings of large-capacity electrolytic capacitors in traditional mining power supply rectification stages,such as short life and poor thermal stability,which seriously affect the reliability of rectifiers and the safety of underground personnel.A VIENNA power factor correction(PFC)boost rectifier without electrolytic capacitors is designed.By adding an improved buck-boost converter to the DC bus to decouple the active power in the DC link,the voltage ripple is forced to transfer to the auxiliary capacitor.So that the DC link capacitance is significantly reduced.Therefore,bulky electrolytic capacitors can be replaced with small film capacitors with high reliability.The relationship between the DC bus capacitors and DC-side voltage ripple of the VIENNA rectifier is introduced,then the realization principle of non-electrolytic capacitors and the method of quantitative parameter design are explained.Finally,the validity of the theoretical analysis and parameter design method is verified by simulation.

关 键 词：VIENNA整流器 无电解电容 有源功率解耦 高可靠性 

分 类 号：TD608[矿业工程—矿山机电]