三端口直流-直流转换器的脱控制策略基于模型预测
Junrui Wang1, Xuanjing Qiao2, Linhui Li2
1School of Electrical Information Engineering, North Minzu University, Yinchuan, 750021, China. jr09110111@163.com.
Scientific reports
|November 3, 2024
概括
本研究介绍了模型预测控制 (MPC) 来解决三重主动桥 (TAB) DC-DC转换器中的电源合问题. 该MPC策略有效地将端口之间的功率解,改善转换器性能.
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:
- 三重主动桥 (TAB) DC-DC转换器使用多线程高频隔离变压器,导致端口之间的电源合问题.
- 这种合可以对转换器中的每个端口的独立控制和性能产生负面影响.
研究的目的:
- 提出和验证一种模型预测控制 (MPC) 策略,以减轻TAB直流-直流转换器中的功率合.
- 为了实现TAB转换器端口之间的有效功率脱.
主要方法:
- 使用相位移调和平均模型开发了TAB转换器的离散预测模型.
- 解决了一个最佳模型预测控制 (MPC) 问题,设计了一个用于解控制的预测控制器.
- 模拟比较了拟议的MPC与传统的单电压闭环控制和对角矩阵脱控制.
主要成果:
- 与传统方法相比,拟议的MPC策略在模拟中表现出优异的性能.
- 在DSP控制的TAB转换平台上的实验验证证证了MPC方法的有效性.
- 该方法实现了更快的动态特性和转换器端口之间的显著功率脱.
结论:
- 模型预测控制 (MPC) 为TAB直流-直流转换器的功率合问题提供了有效的解决方案.
- 拟议的MPC战略提供了增强的控制精度和优越的动态性能.
- 实验结果验证了MPC对TAB转换器的实际适用性和优势.
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