短暂的电流平衡调制,以实现双动桥式转换器的无负载阶段响应,并具有三重相位移控制
1Department of Intelligent Manufacturing, Guangdong University of Education, Guangzhou, Guangdong, China. zhoushengzhi@gdei.edu.cn.
Scientific reports
|May 3, 2025
概括
对于双主动桥式直流-直流转换器而言,一种新的短暂电流平衡 (TCB) 调制可最大限度地减少电感器和变压器超标电流. 这种方法确保了快速的短暂响应,没有直流偏差,提高了系统效率并减少了电磁问题.
科学领域:
- 电气工程 电气工程
- 电力电子 电力电子 电力电子
背景情况:
- 双活性桥 (DAB) DC-DC 转换器可能会由于不适当的直接调制而经历时间DC偏移和超越负载级电流需求.
- 这些问题导致复杂的电磁问题和系统中传导损失的增加.
研究的目的:
- 为DAB直流-直流转换器提供专用过渡电流平衡 (TCB) 调制,以实现无过渡响应.
- 为了解决和减轻三相变换 (TPS) 控制中固有的直流偏移和超越电流问题.
主要方法:
- 该研究的重点是三次相位移 (TPS) 控制,一个三维门信号方案.
- 引入了一种新的TCB调制,通过浮动参考来调整相位移,以最大限度地减少DC偏移.
- 在不同TPS稳定状态模式之间的所有过渡情况中评估TCB调制.
主要成果:
- 拟议的TCB调制实现了快速的短暂响应,而不会在TPS控制中引入直流偏移电流.
- 提出了TCB调制的统一解决方案,简化了不论稳定状态的确定.
- 理论发现通过模拟和实验测试来验证.
结论:
- TCB调制有效地将TPS控制的DAB直流-直流转换器中的直流偏移和超标电流降到最低.
- 这种方法通过减少电磁干扰和导电损失来提高系统性能.
- TCB调制提供了一个强大的和普遍适用的解决方案,用于改善DAB转换器中的短暂响应.
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