基于离散自适应滑动模式算法的单相全桥逆变器控制,具有错误补偿
Yun Zhang1, Zhenyu Tang2, Fenghui Xu3
1School of Rail Transportation, Shandong Jiao Tong University, Jinan, China.
PloS one
|October 10, 2025
概括
这项研究简化了单相全桥逆变器控制,通过调整直流-直流逆变电路策略. 一种自适应的离散滑动模式控制方法显著减少了聊天,并提高了系统的准确性和防干扰能力.
科学领域:
- 电气工程 电气工程
- 控制系统 控制系统
- 电力电子 电力电子 电力电子
背景情况:
- 单相全桥逆变器在功率电子中至关重要.
- 传统的控制方法往往受到复杂性和喋喋不休的困扰.
- 提高反干扰和控制精度对于逆变器性能至关重要.
研究的目的:
- 为单相全桥逆变器提出简化和增强的控制策略.
- 为了减少控制过程的复杂性,并提高系统的反干扰能力.
- 为了尽量减少聊天和提高控制准确性,使用适应性方法.
主要方法:
- 在单相全桥逆变器和两个buck电路之间建立的控制过程等价性.
- 采用了用于实时输出电压跟踪的DC-DC电路控制策略.
- 一种新的自适应离散滑动模式控制 (SMC) 方法,采用动态增益调整.
- 滑动模式带宽,动范围和收步骤的数学证明.
主要成果:
- 拟议的方法简化了控制过程,并增强了反干扰.
- 适应式SMC通过动态调整接近速度来显著减少聊天.
- 滑动模式带宽从O(T) 减少到O(T^3),提高了控制精度.
- 证明了优越的电压跟踪速度,降低了稳定状态误差,并增强了干扰排斥.
结论:
- 拟议的控制策略为单相全桥逆变器控制提供了一种简化和有效的方法.
- 适应式离散滑动模式控制通过减少喋喋不休并提高准确性来显著提高性能.
- 该方法为需要精确电压跟踪和干扰排斥的应用提供了强大的解决方案.
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