摘要
船用设备的辅助电源供电层级多、电缆数量多、路径长,导致系统的选择性保护难度大,采用辅助电源高压取电可有效解决上述问题。以高电压输入、低电压输出直流辅助电源为研究对象,针对高电压输入的特点,设计基于三电平半桥电路的高压主功率变换电路。为实现自激启动,设计电容取电和回馈供电双路切换供电的高压辅助电源。最后,制作1台额定功率为2 kW的样机,实验结果验证了设计方案的可行性和正确性。
The auxiliary power supply of marine equipment has multiple power supply level,a large number of cables,and long cable routes,which leads to great difficulty in the selective protection of the system.Using the auxiliary power supply high-voltage power extraction can effectively solve the above problems.Taking the high-voltage-input low-voltage-output DC auxiliary power supply as the research object,aiming at the characteristics of high-voltage-input the high-voltage main power conversion circuit based on three-level half-bridge circuit is designed.In order to realize the self-excited start-up,a high-voltage auxiliary power supply with dual-channel switching of capacitor extraction power and feedback power supply is designed.Finally,a prototype with a rated power of 2 kW is fabricated,and the experimental results verify the feasibility and correctness of the design scheme.
作者
朱理鹏
杨国润
文灿辉
宋素静
ZHU Lipeng;YANG Guorun;WEN Canhui;SONG Sujing(Tongda Electromagnetic Energy Co.,Ltd.,Changsha 410000,China;Naval University of Engineering,Wuhan 430000,China)
出处
《电器与能效管理技术》
2025年第4期47-53,共7页
Electrical & Energy Management Technology
关键词
高电压输入
低电压输出
直流辅助电源
三电平半桥
自激启动
high-voltage-input
low-voltage-output
DC auxiliary power supply
three-level half-bridge
self-excitation start-up
