适应性控制策略用于使用命令过后退和干扰拒绝的DC/DC转换器
Van Du Phan1, Dinh Tu Duong1, Van Chuong Le1
1School of Engineering and Technology, Vinh University, Nghe An 43100, Vietnam.
Micromachines
|December 31, 2025
概括
本研究介绍了DC/DC转换器 (DBC) 的新控制器,该控制器可以提高输出电压的稳定性和准确性,即使存在干扰. 拟议的基于观察者的自适应命令过控制器显著改善了模拟和实验中的跟踪性能.
科学领域:
- 电气工程 电气工程
- 控制系统理论 控制系统理论
- 电力电子 电力电子 电力电子
背景情况:
- 直流/直流转换器 (DBC) 需要稳定和准确的输出电压才能可靠运行.
- 一次性干扰可以显著影响DBC的性能和稳定性.
- 现有的控制方法可能无法充分应对这些挑战.
研究的目的:
- 为DBC系统设计和验证基于观察者的自适应性命令过控制器.
- 为了减轻一次性干扰对输出电压调节的影响.
- 为了提高DBC的跟踪性能和稳定性.
主要方法:
- 基于切换模式的DBC数学模型的开发.
- 简化扩展状态观察员 (SESO) 的设计,以估计和补偿一次性干扰.
- 命令波器技术的合成与适应性定律用于增强电压调节.
- 使用利亚普诺夫原则进行稳定性分析.
主要成果:
- 拟议的控制器在跟踪性能方面取得了显著的改进.
- 模拟显示,在正弦参考轨迹下,改善率分别为96.1%和77.8%.
- 实验证实了84.4%和49.1%的显著性能增长.
结论:
- 基于观察者的自适应性命令过控制器有效地提高了DBC性能.
- 该方法在存在一次性干扰的情况下提供了强大的电压调节.
- 通过模拟和实验验证,该方法为DBC控制提供了优越的解决方案.
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