Research on parallel interleaved DC/DC converter applied to mine electric locomotive
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摘要: 针对目前应用于矿用电机车的非隔离型变换器转换效率低、易损坏开关器件、不适用于超级电容等问题，介绍了一种应用于矿用电机车的并联交错DC/DC变换器。在低压侧采用并联交错结构对电容充电，并减小电流纹波；在高压侧通过增加一个开关管使2个电容串联放电，以提高升降压增益。介绍了该变换器在升压驱动模式和降压充电模式下的工作过程，并设计了电压/电流双闭环升压和恒流限压充电控制器。实验结果表明，并联交错DC/DC变换器能够有效提高电机车在直流变换环节的性能。
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关键词:
- 矿用电机车 /
- 并联交错DC/DC变换器 /
- 超级电容 /
- 升压驱动模式 /
- 降压充电模式
Abstract: In view of problems of low conversion efficiency, easy damage of switching devices and inapplicable to super capacitors of non-isolated converters currently used in mine electric locomotive, a parallel interleaved DC/DC converter applied to mine electric locomotive was introduced. At the low voltage side, a parallel interleaving structure is proposed to charge the capacitor and reduce current ripple; At the high voltage side, two capacitors are connected in series by adding a switch tube to increase buck-boost gain. Working process of the converter under boost drive mode and buck charging mode are described. The voltage/current double closed-loop step-up and constant current limit charging controller are designed. The experimental results show that the parallel interleaved DC/DC converter can effectively improve the performance of the electric locomotive in DC conversion. -
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期刊类型引用(2)
1. 李起伟，陈伟，张健，邵甜甜. 矿用防爆锂电源均流系统设计. 工矿自动化. 2021(12): 13-18 . 
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2. 朱明初. 电牵引单轨吊机车电瓶自动更换装置在井下的应用. 机电工程技术. 2019(12): 207-208 . 百度学术
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