一个基于非线性观察者的控制策略,用于混合储能系统,以改善DC微电网中的电压干扰排斥
Syphax Ihammouchen1, Ali Chebabhi2, Djamel Ziane3
1Faculté de Technologie, Laboratoire de Technologie Industrielle et de l'Information (LTII), Université de Bejaia, Bejaia, 06000, Algeria.
Scientific reports
|December 18, 2025
概括
本研究介绍了一种新的非线性观察器,用于混合能源存储系统的直流微电网. 这种方法增强了电压控制和干扰排斥,提高了整体系统的稳定性和性能.
科学领域:
- 电气工程 电气工程
- 控制系统 控制系统
- 整合可再生能源的整合
背景情况:
- 直流微电网需要强大的控制,以集成混合能源储能系统 (HESS) 和光伏 (PV) 发电.
- 在波动负载和光伏输出下保持稳定的直流总线电压是具有挑战性的.
研究的目的:
- 为使用HESS的直流微电网提出一种高效的非线性基于观察者的控制方法.
- 改进直流微电网总线电压控制,动态响应,干扰排斥和HESS功率分配.
主要方法:
- 一个比例积分 (PI) 电压控制器与一个可变增益非线性高增益观察器 (NHGO) 相结合.
- 在NHGO动态调整增益,以快速估计在过渡的干扰和稳定状态下的噪声免疫力.
- 根据电池和超级电容器的特点,在电池和超级电容器之间进行战略功率分配.
主要成果:
- 压力超标降低了多达45%,沉降时间提高了35%.
- 与传统方法 (ESO-LPF,HGO-LPF,STO-LPF) 相比,对参数变化具有更高的稳定性.
- 有效管理短暂和稳定状态功率失衡.
结论:
- 拟议的基于NHGO的控制方案为使用HESS的DC微电网提供了高效和稳定的运行.
- 变量增益策略有效地平衡了性能和噪声免疫力.
- 通过MATLAB/Simulink和实时实验验证实,显示出显著的性能改进.
关键词:
电流微电网是直流的微电网.正流微电网总线电压稳定性 电压稳定性能源管理系统 能源管理系统混合能源储能系统是混合能源储能系统.整体倒退的MPPTT可以实现.非线性高增强观测者非线性高增强观测者太阳能光伏系统的使用更多相关视频
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