中国电机工程学报Issue(22)：5811-5822,12.DOI:10.13334/j.0258-8013.pcsee.2015.22.016
直流母线与辅助电路并联的谐振直流环节软开关逆变器
Resonant DC-link Soft-switching Inverter With Auxiliary Circuits in Parallel With DC Bus
摘要
Abstract
One auxiliary switch is usually set on the DC bus of resonant DC link inverter, which restricted efficiency improvement. That is also one reason why resonant DC link inverter is not applied in the high-power field. To solve the problem, this project proposed a resonant DC-link soft-switching inverter with auxiliary circuits in parallel with DC bus. Auxiliary switches and resonant elements were not on the DC bus of the novel topology, which was helpful to reduce loss of auxiliary resonant circuit and improve efficiency. In the paper, the phase-plane analysis technique was established for the novel resonant DC link inverter in order to study transient dynamics, soft-switching condition and design rule. The mathematical models for auxiliary resonant circuit loss and the value of improvements in efficiency were established. A 10kW laboratory prototype was built. Experimental results demonstrated value of efficiency improvements in full load was no less than that in light load. Therefore, the proposed soft-switching inverter is beneficial to reduce loss of auxiliary resonant circuit and ensure high power utilization ratio.关键词
逆变器/软开关/谐振直流环节/辅助开关/开关损耗Key words
inverter/soft-switching/resonant DC link/auxiliary switch/switching loss分类
信息技术与安全科学引用本文复制引用
王强,陈祥雪,刘岩松,王天施,刘晓琴..直流母线与辅助电路并联的谐振直流环节软开关逆变器[J].中国电机工程学报,2015,(22):5811-5822,12.基金项目
国家自然科学基金项目(51207069)；辽宁省教育厅科研项目(L2013146)；中国博士后科学基金项目(2013M531349)；江苏省博士后科研资助计划项目(1301105C)。Project Supported by National Natural Science Foundation of China (51207069) （51207069）
Project Supported by Foundation of Liaoning Educational Committee (L2013146) （L2013146）
Project Supported by China Postdoctoral Science Foundation (2013M531349) （2013M531349）
Jiangsu Planned Projects for Postdoctoral Research Funds (1301105C) （1301105C）
