摘要
辅助电源作为电力电子功率变换装置中的重要组成部分,在直流输电、太阳能发电站、风能发电站等系统中面临高压宽范围的应用需求。针对高电压宽范围输入导致的开关管应力、成本以及效率问题,基于串联开关管反激变换器进行了原理分析和参数设计,设计了一台300~900 V输入、24 V输出的100 W辅助电源样机。相比传统方案,该拓扑通过稳压管钳位可以简单有效地降低开关管电压应力,拓宽选择范围,改善效率,实现高压宽范围输入内稳定运行。最后进行相关实验,结果验证了所设计的高压宽范围辅助电源方案的可行性和正确性,实现了低成本、宽输入范围、高应力的高效电能转换。
As an important part of power electronic power conversion device,auxiliary power supply is faced with the application demand of high voltage and wide range in DC transmission,solar power station,wind power station and other systems.Aiming at the problems of switch stress,cost and efficiency caused by high voltage and wide range input,the principle analysis and parameter design were carried out based on the series switch flyback converter,and a 100 W auxiliary power supply prototype with 300~900 V input and 24 V output was designed.Compared with the traditional scheme,this topology can simply and effectively reduce the voltage stress of the switch through the zener diode,broaden the selection range,improve the efficiency,and achieve stable operation within the high voltage and wide range input.Finally,the results of the relevant experiments have been given to verify the feasibility and correctness of the design of the high voltage and wide range auxiliary power supply scheme.A low-cost wide input range and high stress efficient power conversion have been realized.
作者
张向前
车超昌
李风生
于世鹏
雷辉
ZHANG Xiangqian;CHE Chaochang;LI Fengsheng;YU Shipeng;LEI Hui(Tianjin Research Institute of Electric Science Co.,Ltd.,Tianjin 300180,China;School of Electrical Automation and Information Engineering,Tianjin University,Tianjin 300072,China;Shaanxi Longmen Iron&Steel Co.,Ltd.,Hancheng 715400,Shaanxi,China)
出处
《电气传动》
2023年第10期17-22,70,共7页
Electric Drive
基金
国家重大自然科学基金项目(51977146)
2021年天津市研究生科研创新项目(航空专项)(2021YJSO2S01)
天津市研究生科研创新项目(2021YJSB152)
天津电气科学研究院有限公司科研基金项目(YF2022BH001)。
关键词
辅助电源
反激变换器
电压应力
auxiliary power supply(APS)
flyback converter
voltage stress
