基于LADRC-PI混合控制的高性能双阶段直流/直流转换器,用于PEM电解仪气生产
Qingshuai Yu1, Zhenao Sun1, Yetong Han1
1College of Information Science and Engineering, Northeastern University, Shenyang 110819, China.
Micromachines
|June 27, 2025
概括
本研究介绍了一种新的双阶段混合直流/直流转换器,用于水电解,增强电压调节和动态响应. 新设计提高了生产系统的效率和稳定性.
科学领域:
- 电气工程 电气工程
- 电力电子 电力电子 电力电子
- 可再生能源系统可再生能源系统
背景情况:
- 用于水电解的直流/直流转换器面临着电压调节和动态响应之间的权衡.
- 现有的解决方案往往难以优化广泛的电压范围和快速短暂性能.
研究的目的:
- 开发一种混合直流/直流转换器拓,解决水电解常规设计的局限性.
- 在单个转换器系统中改进电压调节和动态响应特性.
主要方法:
- 采用了一种两相混合拓 (TSIB-TPLLC) 组合了两相交联的buck转换器和三相LLC共振转换器.
- 实现了一种双循环控制架构,其中包括具有PI补偿的线性主动干扰排斥控制 (LADRC).
- 一个1.2千瓦的实验原型被建造和测试.
主要成果:
- 交叉阶段实现了广泛的电压调节,并减少了输入电流的波动.
- 该LLC共振阶段提供了输出电流波纹抑制和高转换效率.
- 与传统的PI控制相比,拟议的控制策略显著改善了暂时反应.
结论:
- 开发的TSIB-TPLLC转换器有效地平衡了水电解的广泛电压调节和动态响应.
- 混合拓和先进的控制策略表明它适合有效和稳定的生产.
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