中国电机工程学报2017，Vol.37Issue(15)：4472-4482,11.DOI:10.13334/j.0258-8013.pcsee.161094
开关器件承受电压不高于直流电源电压的无源谐振极逆变器
Passive Resonant-pole Inverter With Switch Voltage No More Than DC Power Voltage
摘要
Abstract
A resonant-pole inverter,in which the main switching voltage was no more than the supply voltage and no auxiliary switch was taken out,was proposed to improve conversion efficiency of the inverter.Compared with the hard-switching inverter,the inverter could make switching devices achieve zero-current turning on at the moment of turning on and zero-voltage turning off at the moment of turning on via adding resonant circuits composed of few passive devices.In addition,freewheeling of output phase currents of the inverter could be realized via auxiliary circuits in the dead-time,which was beneficial to the reduction of the distortion ratio of the output phase current in low output frequency.The operation principle was analyzed in detail on the basis of equivalent circuits at different operation modes.The conditions for realization of soft-switching were presented.The theoretical analysis of auxiliary circuit losses was made and the design process of resonant parameters was given.A 10kW three-phase laboratory prototype had been built.Experimental results showed that switching device of the inverter could realize soft-switching and output phase currents had no distortion in low output frequency.Therefore,the proposed soft-switching inverter has the advantage of low switching losses and low distortion of output currents.关键词
零电压关断/零电流开通/软开关/逆变器/谐振Key words
zero-voltage turning off/zero-current turning on/soft-switching/inverter/resonant分类
信息技术与安全科学引用本文复制引用
王强,杨小葛,王天施,刘晓琴..开关器件承受电压不高于直流电源电压的无源谐振极逆变器[J].中国电机工程学报,2017,37(15):4472-4482,11.基金项目
国家自然科学基金项目(51207069) （51207069）
辽宁省自然科学基金指导计划项目(20170540586) （20170540586）
辽宁石油化工大学国家级科研项目培育基金资助项目(2016PY-016).Project Supported by National Natural Science Foundation of China (51207069) （2016PY-016）
Project Supported by Natural Science Foundation of Liaoning Province of China (20170540586) （20170540586）
Project Supported by Scientific Research Cultivation Fund of LSHU of China (2016PY-016). （2016PY-016）
