基于鱼优化的分量顺序控制,用于高性能电网连接的光伏多层逆变器:二极管紧固件与T型MLIs相比
Abdelhak Djellad1,2, Azzeddine Dekhane3,4, Maissa Farhat5
1National Higher School of Technology and Engineering, Department of Electronics, Electrical Engineering and Automation, 23005, Annaba, Algeria.
Scientific reports
|October 21, 2025
概括
本研究介绍了使用鱼优化算法 (WOA) 和有限控制集模型预测控制 (FCS-MPC) 的多级逆变器的优化控制策略,以提高光伏电网集成中的电力质量和效率.
科学领域:
- 电气工程 电气工程
- 控制系统 控制系统
- 可再生能源系统可再生能源系统
背景情况:
- 多层逆变器 (MLI) 对于可再生能源系统中高效的电力转换至关重要.
- 优化MLI性能需要先进的控制策略来提高电源质量和效率.
- 现有的控制方法在实现高精度和动态稳定性方面经常面临挑战.
研究的目的:
- 开发和评估一种新的层次控制方案,将鱼优化算法 (WOA) 与有限控制集模型预测控制 (FCS-MPC) 集成在一起.
- 优化MLI的分量顺序比例整合 (FOPI) 控制器,使用拟议的WOA调整方法.
- 为了比较T型和二极管紧固件MLIs在光伏 (PV) 联网系统中的性能.
主要方法:
- 一个分层的控制方案,具有对WOA调节的FOPI外部循环用于参考信号生成和FCS-MPC内部循环用于切换状态选择.
- 对MLIs的WOA-FOPI-FCS-MPC控制策略的实施.
- 在1MW光伏电网系统中对T型和二极管合式MLI进行比较分析.
- 通过MATLAB/Simulink模拟和初步实验测试进行验证.
主要成果:
- 与传统基于PI的预测控制相比,WOA-FOPI-FCS-MPC控制实现了12-15%的总波扭曲 (THD) 减少和22%的动态稳定性改善.
- T型MLIs表现出卓越的性能,在7级操作下达到98.5%的效率和1.48%的电压THD.
- 统计分析证实了优化的稳定性和一致性,WOA验证了其全球搜索能力.
结论:
- 拟议的WOA-FOPI-FCS-MPC控制策略显著提高了MLI性能,提供了改进的声抑制,电压调节和动态稳定性.
- T型MLIs在组件数,电源质量和光伏电网集成效率之间提供了最佳的权衡.
- 开发的方法显示了高性能工业光伏电网集成应用的巨大潜力.
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