模型预测控制为四个主动桥直流-直流转换器,用于更多电气飞机应用
Ahmed Hamed Ahmed Adam1, Jiawei Chen1, Minghan Xu1
1School of Automation and the State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing, 400044, China.
Scientific reports
|April 20, 2025
概括
本研究引入了四活桥 (QAB) 转换器的新控制策略,改进了动态响应并减少了错误. 移动离散控制集模型预测控制 (MDCS-MPC) 为多端口电源应用提供了增强的性能.
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:
- 四活性桥 (QAB) 转换器为多端口应用提供了诸如电隔离和共享磁性等优势.
- 由于复杂性,有限的动态性能和端口合,传统控制器面临QAB转换器的挑战.
- 电压超标/低标和负载变化下的缓慢响应是现有的QAB控制方法的常见问题.
研究的目的:
- 开发一个先进的控制策略,用于四活跃的桥梁转换器.
- 解决传统控制器在动态响应和稳定状态错误方面的局限性.
- 在各种操作条件下提高QAB转换器的性能和稳定性.
主要方法:
- 实施移动离散控制集模型预测控制 (MDCS-MPC) 策略.
- 使用转换器模型来预测相位移值以提高动态性能.
- 包含一个适应性步骤,以减少计算负载和更快的过渡.
主要成果:
- MDCS-MPC战略在模拟和硬件在循环 (HIL) 实验中表现出卓越的动态响应和稳定性.
- 在控制变量中消除了稳定状态错误.
- 由于适应式步骤实现,观察到显著减少的计算要求.
- 证实了快速电压动态响应,没有显著的超出或不足.
结论:
- 开发的MDCS-MPC战略有效地解决了四活跃桥梁转换器中的控制挑战.
- 该策略为多端口电源应用提供了强大且计算效率高的解决方案.
- 实验和模拟结果验证了MDCS-MPC方法对QAB转换器的卓越性能.
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