CAJ | 학술논문

宽范围DC/DC辅助电源是高电压大容量电力电子变流系统的重要组成部分，尤其是对于具有标准化、模块化、分布式结构的中高压大容量电力电子变流系统意义更重大。首先，基于双管反激电路，设计制作了一个宽范围高电压80～800 V输入/低电压24 V输出的辅助电源样机，针对常规双管反激电源反馈电路存在的问题，进行了详细分析并提出解决方法；其次，给出了实验波形，对实验波形中的尖峰及震荡现象进行定性分析并给出解决思路；最后，利用闭环系统的开环传递函数对双管反激电路进行了稳定性分析。
관범위DC/DC보조전원시고전압대용량전력전자변류계통적중요조성부분，우기시대우구유표준화、모괴화、분포식결구적중고압대용량전력전자변류계통의의경중대。수선，기우쌍관반격전로，설계제작료일개관범위고전압80～800 V수입/저전압24 V수출적보조전원양궤，침대상규쌍관반격전원반궤전로존재적문제，진행료상세분석병제출해결방법；기차，급출료실험파형，대실험파형중적첨봉급진탕현상진행정성분석병급출해결사로；최후，이용폐배계통적개배전체함수대쌍관반격전로진행료은정성분석。
The wide range DC/DC auxiliary power supply was an important part of a high-voltage and large-capacity power electronic converter system. Especial y it was of greater significance to the medium-high voltage and large-capacity power electronic converter system with the distributed architecture of standardization and`modularization. First of al , based on the double transistor flyback circuit, an auxiliary power supply prototype with a wide-range, high-voltage 80~800V input and 24 V output, was designed. The conventional feedback circuit was analyzed in detail and the methods for solving the existent question were offered. Then, experimental waveforms were presented. The peak and oscil ation in the experimental waveforms were analyzed qualitatively and relative solution was given. Final y, the stability of the double transistor flyback circuit was analyzed by means of open-loop transfer function of the close-loop system.