对于具有动态轨迹预测调制的双活性桥系列共振直流直流转换器,增强过渡性无振动响应
1School of Computer Science, Guangdong University of Education, No. 351 Xingang Middle Road, Haizhu District, GuangZhou, 510303, Guangdong, China.
Heliyon
|December 24, 2024
概括
本研究引入了一种动态轨迹预测调制 (DTPM) 方法,以改善双活性桥系列共振转换器中的短暂响应. DTPM方法显著降低了振荡,并加速了对孤立的直流/直流电源阶段的稳定状态的实现.
科学领域:
- 电气工程 电气工程
- 电力电子 电力电子 电力电子
- 控制系统 控制系统
背景情况:
- 双活性桥系列共振转换器为固态变压器提供电磁隔离和高功率密度.
- 步骤负载命令会在共振中引发严重的振荡,延迟短暂响应和稳定状态进入.
研究的目的:
- 提出一种动态轨迹预测调制 (DTPM) 方法,以提高共振转换器中的短暂性能.
- 为了减少振荡和提高在负载变化期间达到稳定状态的速度.
主要方法:
- 状态平面分析以在单相位移调制下建模转换器行为.
- 扰动分析用于预测切换间隔对状态轨迹的影响.
- 动态轨迹预测调制 (DTPM) 调节脉冲宽度和转换周期在短暂的.
主要成果:
- DTPM方法有效地调节了在过渡状态期间的传输功率.
- 观察到共振振荡的显著减少.
- 计算负担降低,促进数字化实施.
结论:
- 拟议的DTPM方法为改善隔离直流/直流转换器中短暂响应提供了可行的解决方案.
- 模拟和实验验证证证实了DTPM方法的有效性.
- 这种调制策略提高了固态变压器电源阶段的性能.
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