中国电机工程学报2017，Vol.37Issue(6)：1787-1796,10.DOI:10.13334/j.0258-8013.pcsee.160204
一种电压钳位型零电压开关推挽式高频环节DC/AC变换器
ZVS Push-pull High-frequency-link DC/AC Converter With Voltage Clamping
摘要
Abstract
One zero voltage switch (ZVS) push-pull high frequency link DC/AC converter with voltage clamping is proposed.Firstly,the evolution of the proposed DC/AC converter is presented.Then,the switching strategy is proposed and the steady working principle is analyzed in detail.The average model of the proposed converter is discussed by using the state-spacing-averaging approach.By contrast,it is found that the proposed converter and the phase-shift full-bridge DC/AC converter have similar characteristics.Switches S1,S2 can realize ZVS turn-on easily and the auxiliary switch S3 can achieve ZVS turn-on under enough energy stored in leakage inductor.Meanwhile,the voltage of S3 can be clamped at Uin with a clamp diode.In addition,the cycloconverter can also achieve ZVS commutation easily.In addition,the proposed topology solves the problem of hard-switching that resulting in high switching losses.Finally,one prototype of 500VA/48VDC/110V/50Hz AC is developed and the test results show that the theoretical analyses and principle are correct.The efficiency of the prototype can reach 91.5％.关键词
推挽/电压钳位/高频环节/周波变换器/DC/AC变换/ZVS换流Key words
push-pull/voltage clamped/high frequency link/cycloconverter/DC/AC/ZVS commutation分类
信息技术与安全科学引用本文复制引用
伍群芳,王勤,徐佳林,肖岚,袁义生..一种电压钳位型零电压开关推挽式高频环节DC/AC变换器[J].中国电机工程学报,2017,37(6):1787-1796,10.基金项目
国家自然科学基金项目(51377082,51467005) （51377082,51467005）
江苏省普通高校研究生科研创新计划项目(KYLX15_0275) （KYLX15_0275）
江苏省“青蓝工程”项目 （）
江苏省高校优秀科技创新团队资助项目.Project Supported by National Natural Science Foundation of China (51467005,51377082) （51467005,51377082）
Funding of Jiangsu Innovation Program for Graduate Education (KYLX15_0275) （KYLX15_0275）
Jangsu Qing Lan Project （）
Jiangsu Province University Outstanding Science and Technology Innovation Team Project. （）
