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面向机载脉冲负载的三相双输出整流器及其控制策略

段玉彬1,金鑫2,殷会民1,邢岩1,吴红飞1   

  1. 1. 南京航空航天大学
    2. 中国航空工业集团公司雷华电子技术研究所
  • 收稿日期:2024-12-13 修回日期:2025-03-04 出版日期:2025-03-06 发布日期:2025-03-06
  • 通讯作者: 吴红飞
  • 基金资助:
    国家自然科学基金

Three-phase dual-output rectifier and its control strategy for airborne pulsed loads

  • Received:2024-12-13 Revised:2025-03-04 Online:2025-03-06 Published:2025-03-06
  • Contact: Hong-Fei WU

摘要: 提出了面向机载低频脉冲负载供电的三相双输出整流器及其控制策略。针对大功率机载雷达等高峰值脉冲功率负载对飞机有限容量电源系统造成的影响,设计了能够同时提供两路独立受控直流输出三相双输出整流器。整流器两个直流输出分别用作常规负载和低频脉冲负载的直流供电母线,解决了传统单直流母线供电架构下低频脉冲负载干扰常规负载稳定运行的问题。通过允许低频脉冲负载直流母线电压宽幅波动,有效减小了母线解耦电容的容量和体积重量。文中给出了双输出整流器的电路实现方式,详细分析了其工作原理,提出并详细研究了适应两路输出功率分配与调控需求的PWM调制策略及其控制方法。最后,通过实验验证了本文所提方法的可行性和有效性。

关键词: 机载电源系统, 脉冲功率电源系统, 交直流变换器, 双直流母线, 脉冲功率解耦

Abstract: A three-phase dual-output rectifier and its control strategy are proposed for powering airborne low-frequency pulsed load. Aiming at the impact of high peak pulsed power load such as high-power airborne radar on the limited-capacity power supply system of aircraft, a rectifier is designed to simultaneously provide two independently controlled DC outputs. The two DC outputs are used to power the DC bus for the conventional loads and low-frequency pulsed load, respectively, solving the problem of low-frequency pulsed load interfering with the stable operation of conventional loads under the traditional single DC bus power supply architecture. By allowing the DC bus voltage for the low-frequency pulsed load to fluctuate over a wide range, the volume, capacity, and weight of the bus decoupling capacitors are significantly reduced. The paper presents the circuit implementation of the dual-output rectifier, provides a detailed analysis of its operating principles, and proposes a PWM modulation strategy and control method that meet the power distribution and regulation requirements of the two outputs. Finally, experimental results are provided to validate the feasibility and effectiveness of the proposed method.

Key words: Airborne power systems, pulsed power supply system, AC-DC converter, dual DC bus, pulsed power decoupling

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