|本期目录/Table of Contents|

[1]王强,单瑞香,王天施,等.单相全桥谐振直流环节软开关逆变器[J].电机与控制学报,2017,21(03):38-47.[doi:10.15938/j. emc. 2017.03. 006]
 WANG Qiang,SHAN Rui-xiang,WANG Tian-slii,et al.Single-phase full-bridge resonant DC-link soft-switching inverter[J].,2017,21(03):38-47.[doi:10.15938/j. emc. 2017.03. 006]
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《电机与控制学报》[ISSN:1007-449X/CN:23-1 408/TM]

卷:
21
期数:
2017年03
页码:
38-47
栏目:
出版日期:
2018-03-15

文章信息/Info

Title:
Single-phase full-bridge resonant DC-link soft-switching inverter
作者:
王强单瑞香王天施刘晓琴
(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 Qiang SHAN Rui-xiang WANG Tian-slii LIUXiao-qin
 (College of Information and Control Engineering Liaoning Shihua University Fushun 113001,China)
关键词:
谐振逆变器软开关单独开关零电压
Keywords:
resonantinvertersoft-switchingsingle switchzero voltage
分类号:
TM 464
DOI:
10.15938/j. emc. 2017.03. 006
文献标志码:
A
摘要:
为提高逆变器的效率和简化控制方式,提出一种单相全桥谐振直流环节软开关逆变器。通过单独开关控制辅助谐振电路,使直流环节电压在逆变器主开关需切换时下降到零,逆变器的主开关可以实现零电压开关,同时辅助开关也可以实现零电压开关。而且,逆变器直流环节电压不会超过直流源电压。由于谐振过程和零电压持续时间都较短,因而可以减少功率消耗和提高直流电压的利用率。依据不同工作模式下的等效电路,分析其工作原理,结合相平面分析法研究其动力学行为,给出了软开关实现条件和参数设计过程,搭建了实验样机。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,可以有效地降低该软开关逆变器的开关损耗和提高其效率。
Abstract:
Asingle-phase full-bridge resonant DC-link soft-switching inverter was proposed to improve the eficiency and simplify the control met!iod.When main switches in the inverter needed Operating,the DC- link voltage decreased to zero via the single switch which controlling the resonance of the auxiliary cir­cuit.Then Z1 main switching devices in the inverter were operated under zero-voltage condition and auxil­iary switching device was also operated under zero-voltage condition.The voltage across the DC-link in­ verter devices was limited to the input source voltage.Because the process of tiie resonant and the zerovoltage time was short it could reduce the power loss and improve the efficiency by using the DC-source voltage.The operation principle was analyzed based on the equivalent circuits at different operation modes.The phase-j)lane analysis technique was establis!ied in order to study transient dynamics.The con­ditions of soft-switching and the process of parameter design were also achieved.A laboratory prototype was built.The experimental results demonstrate that soft-switching operation of all switching devices are realized.Therefore the soft-switching inverter presented effectively reduces switching loss and improves efficiency.



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备注/Memo

备注/Memo:
收稿日期 2015 -07 -12
基金项目:国家自然科学基金(51207069);辽宁石油化工大学国家级科研项目培育基金(2016016) 作者简介:
王 强 ( 1981—),男,博士,副教授,研究方向为软开关逆变器的电路拓扑及控制;
单瑞香(1990—),女,硕士研究生,研究方向为软开关逆变器的电路拓扑及控制;
王天施(1970—),男,博士,副教授,研究方向为电力系统继电保护;
刘晓琴(1975—),女,博士研究生,副教授,研究方向为电力系统故障诊断。
更新日期/Last Update: 2017-03-31