一个基于灰狼优化的修改的SPWM控制方案,用于三相半桥级联式多层逆变器
Abdelrahman M Nasser1,2, Amr Refky3, Hamdy Shatla3
1Department of Electrical Engineering, Faculty of Engineering, Al-Azhar University, Cairo, Egypt. abdelrahman.mohamed1@azhar.edu.eg.
Scientific reports
|March 26, 2024
概括
太阳能 (PV) 系统中的多层逆变器 (MLI) 的新控制方案简化了控制,并将总波扭曲 (THD) 降低到6.8%. 这一创新增强了可再生能源的整合和电力质量.
科学领域:
- 电气工程 电气工程
- 可再生能源系统可再生能源系统
- 电力电子 电力电子 电力电子
背景情况:
- 在可再生能源 (RE) 系统中,多层逆变器 (MLI) 对于将光伏 (PV) 源的直流转换为AC至关重要.
- 对于MLIs而言,现有的正弦脉冲宽度调制 (SPWM) 方案可能由于众多载波信号而复杂.
- 将光伏系统有效地集成到电网中,需要先进的控制策略来实现最佳的发电.
研究的目的:
- 提出一个修改的正弦脉冲宽度调制 (SPWM) 控制方案,用于由光伏源供电的三相半桥级联MLI.
- 简化控制的复杂性,提高MLI系统的实际实施.
- 优化MLI供电的光伏系统的性能,重点是减少总波扭曲 (THD).
主要方法:
- 开发了一个修改后的SPWM控制方案,只需要三个信号 (载体,三角形,调制).
- 使用灰狼优化 (GWO) 算法来确定MLI的最佳切换角度.
- 使用MATLAB/SIMULINK进行模拟,并将结果与粒子优化 (PSO) 和遗传算法 (GA) 进行比较.
主要成果:
- 拟议的基于GWO的修改后的SPWM控制方案显著降低了总波扭曲 (THD) 到6.8%.
- 与PSO和GA方法相比,控制方案在模拟中表现出更好的性能.
- 实验验证使用实验室原型证实了模拟结果,显示了可接受的趋同.
结论:
- 开发的修改后的SPWM控制方案为控制MLI驱动的光伏系统提供了更简单,更有效的方法.
- 该GWO算法有效优化切换角度,导致优越的输出波形质量 (最小化的THD).
- 这种方法通过提高光伏集成的效率和可靠性,有助于广泛采用可再生能源.
关键词:
在这里,我们将会看到一个很棒的游戏.灰色狼优化 (GWO) 是一种优化方法.修改的阴侧脉冲宽度调制 (SPWM)多级逆变器 (MLI) 是一个多级逆变器.公共服务人员 (PSO)可再生能源 (RE) 是一种可再生能源.这就是THD THD.更多相关视频
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