在不确定性和干扰的情况下,针对三级四脚整流器直流微电网的增强电网电流和直流电压规则
Ali Chebabhi1, Mohamed Fouad Benkhoris2, Naamane Debdouche3
1Electrical Engineering Laboratory, University of M'sila, 28000, M'sila, Algeria.
Scientific reports
|July 4, 2025
概括
本研究引入了一种新的控制方法,使用分数级扩展状态观察员 (FOESO) 与主动干扰排斥控制 (ADRC) 进行三级中性点紧 (NPC) 四脚整流器 (3LNPC-4LR). 这种方法提高了DC微电网的稳定性和在各种干扰下的性能.
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:
- 三级中性点紧 (NPC) 四脚整流器 (3LNPC-4LR) 对直流微电网至关重要.
- 现有的控制方法在与干扰和系统不确定性作斗争.
研究的目的:
- 为3LNPC-4LR.提出一个增强的电网侧电流和直流总线电压调节方法.
- 为了提高在各种干扰和不确定性下强度和性能.
主要方法:
- 将一个分数级扩展状态观察员 (FOESO) 纳入一个主动干扰拒绝控制 (ADRC) 框架.
- 基于FOESO的ADRC应用于内部电流和外部电压控制环.
- 通过Hardware-in-the-loop (HIL) 实时模拟进行验证.
主要成果:
- 实现了恒定和快速的动态直流总线电压.
- 确保了极好的电网侧电流质量和单位功率因子.
- 在干扰,不确定性和负载变化下表现出强大的稳定状态行为.
结论:
- 基于FOESO的ADRC在传统方法上提供了显著的优势.
- 观察到增强的设计灵活性,改进的跟踪,优越的干扰排斥和更高的可靠性.
- 该方法对3LNPC-4LR在DC微电网中有效.
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