基于FOPID的混合最佳UPQC用于降低可再生能源电网连接系统中的波和补偿负载功率
T Anuradha Devi1, G Srinivasa Rao2, T Anil Kumar3
1Electrical and Electronics Engineering, Vardhaman College of Engineering, Hyderabad, India.
PloS one
|May 14, 2024
概括
本研究介绍了一种改进的分数顺序比例积分导数 (FOPID) 控制器,使用混合Coati-Osprey优化算法 (CO-OA) 进行优化,以提高可再生能源系统 (RES) 的功率质量 (PQ). 新的控制器有效地减轻了电网连接的可再生能源的电压和电流问题.
科学领域:
- 电气工程 电气工程
- 电力系统 电力系统
- 控制系统 控制系统
背景情况:
- 可再生能源 (RES) 和电力电子设备的日益集成加剧了电网中的电力质量 (PQ) 问题.
- 统一功率质量调节器 (UPQC) 对于减轻PQ干扰至关重要,但它们的性能往往受到控制器调节的限制.
- 分数顺序比例积分导数 (FOPID) 控制器提供了增强的性能,但需要有效的优化策略.
研究的目的:
- 为 UPQC 提出一个改进的 FOPID 控制器,以减轻联网可再生能源的 PQ 问题.
- 通过解决 FOPID 控制器的调参数限制,提高 UPQC 的性能.
- 评估在各种负载条件下,包括线性和非线性负载下的拟议控制器的有效性.
主要方法:
- 一种混合的Coati优化算法 (COA) 和 Osprey优化算法 (OOA),称为CO-OA,被开发来优化FOPID控制器参数.
- 优化的FOPID控制器与连接到具有RES的电网的UPQC系统集成.
- 在非线性负载条件下,控制器的性能通过分析电压下降,膨胀和中断事件期间的总波扭曲 (THD) 来评估.
主要成果:
- 建议改进的FOPID控制器显著减少了电网连接的可再生能源系统中的PQ问题.
- 在非线性负载中,实现的特定THD值为12.15% (松动),10.18% (膨胀) 和10.07% (中断).
- 与传统PI控制器相比,优化的FOPID控制器在缓解PQ挑战方面表现出更高的性能.
结论:
- 混合CO-OA优化的FOPID控制器是提高可再生能源集成电力系统UPQC性能的高效解决方案.
- 拟议的方法成功地减轻了电流和电压PQ问题,改善了整体电网稳定性.
- 这种先进的控制策略提供了一个强大的方法来管理现代电网中的电力质量挑战,随着 RES 透率的增加.
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