电器与能效管理技术 ›› 2025, Vol. 0 ›› Issue (4): 47-53.doi: 10.16628/j.cnki.2095-8188.2025.04.007

• 电器设计与探讨 • 上一篇    下一篇

高电压输入低电压输出直流辅助电源设计与分析

朱理鹏1, 杨国润2, 文灿辉1, 宋素静1   

  1. 1.通达电磁能股份有限公司, 湖南 长沙 410000
    2.海军工程大学, 湖北 武汉 430000
  • 收稿日期:2025-01-11 出版日期:2025-04-30 发布日期:2025-06-04
  • 作者简介:朱理鹏(1990—),男,工程师,主要从事电力电子装置相关的设计工作。|杨国润(1990—),男,副研究员,研究方向为大功率能量变换器。|文灿辉(1985—),男,高级工程师,主要从事中高压电气设备的设计与管理工作。

Design and Analysis of High-Voltage-Input Low-Voltage-Output DC Auxiliary Power Supply

ZHU Lipeng1, YANG Guorun2, WEN Canhui1, SONG Sujing1   

  1. 1. Tongda Electromagnetic Energy Co., Ltd., Changsha 410000, China
    2. Naval University of Engineering, Wuhan 430000, China
  • Received:2025-01-11 Online:2025-04-30 Published:2025-06-04

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。

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

Abstract:

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.

Key words: high-voltage-input, low-voltage-output, DC auxiliary power supply, three-level half-bridge, self-excitation start-up

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