|本期目录/Table of Contents|

[1]王强,刘岩松,陈祥雪,等. 双向开关辅助换流的并联谐振直流环节逆变器[J].电机与控制学报,2015,19(04):72-80.[doi:10. 15938/j. emc.2015.04.012]
 WANG Qiang,LIU Yan-song,CHEN Xiang-xue,et al. Parallel resonant DC link inverter with a bidirectionalswitch-assisted commutation[J].,2015,19(04):72-80.[doi:10. 15938/j. emc.2015.04.012]
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《电机与控制学报》[ISSN:1007-449X/CN:23-1 408/TM]

卷:
19
期数:
2015年04
页码:
72-80
栏目:
出版日期:
2015-04-15

文章信息/Info

Title:
 Parallel resonant DC link inverter with a bidirectional
switch-assisted commutation
作者:
 王强刘岩松陈祥雪王天施刘晓琴
 辽宁石油化工大学信息与控制工程学院,辽宁抚顺113001
Author(s):
 WANG QiangLIU Yan-songCHEN Xiang-xueWANG Tian-shiLIU Xiao-qin
 College of Information and Control Engineering, Liaonin} Shihua University, Fushun 113001,China
关键词:
 逆变器谐振软开关双向开关零电压
Keywords:
 inverter resonantsoft-switchingbidirectional switchzero-voltage
分类号:
TM 464
DOI:
10. 15938/j. emc.2015.04.012
文献标志码:
A
摘要:
 摘要:为提高逆变器的效率,提出一种新型并联谐振直流环节软开关逆变器的拓扑结构。直流环
节电压可以周期性下降到零,使逆变器的主开关完成零电压切换,同时辅助开关也实现了零电压开
关或零电流开关。此外,辅助谐振电路中有2个辅助开关相串联,构成了双向开关。控制该双向开
关的通断可以调节逆变器直流环节的零电压持续时间,以方便应用各种灵活的脉宽调制策略。依
据不同工作模式下的等效电路图,分析电路的工作原理,给出设计规则,建立辅助谐振电路中各器
件的功率损耗和分压电容的电压变化量的数学模型。制作了1台功率为3kW的实验样机,实验结
果表明逆变器的主开关和辅助开关都实现了软开关。因此该软开关逆变器可以有效降低开关
损耗。
Abstract:
 Abstract:A novel parallel resonant DC link soft-switching inverter was presented to improve the inverter
efficiency. The voltage on DC link decreased to zero periodically. Main switches could be operated under
zero-voltage and auxiliary switches could be also operated under zero-voltage or zero-current. In addition,
by controlling a bidirectional switch composed of two series auxiliary switches in the auxiliary circuit,du-
ration of zero-voltage on the DC link in the inverter was regulated to apply flexible pulse width modulation
strategy. Based on equivalent circuits in different modes,the operation principle was analyzed and design
rule was presente. Besides,the mathematical models for auxiliary resonant circuit loss and voltage devia-
tion of voltage dividing capacitors were also established. A 3kW laboratory prototype was built. Experi-
mental results demonstrate that soft-switching operation of all main switches and auxiliary switches could
be realized. Therefore,the soft-switching inverter presented can effectively reduce switching loss.

参考文献/References:

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备注/Memo

备注/Memo:
 基金项目:国家自然科学基金(51207069);辽宁省教育厅科研项目(L2013146);中国博士后科学基金(2013M531349)
更新日期/Last Update: 2015-07-24