在故障条件下,基于修改的空间向量PWM的双星感应发电机的直接扭矩控制
Karim Belalia1, Abdelkader Mostefa1, Houari Merabet Boulouiha2
1Department of Electrical Engineering and Automation, University of Relizane, Relizane, Algeria; Laboratory SCAMRE, National Polytechnic School of Oran-Maurice Audin, Oran, Algeria.
ISA transactions
|October 31, 2024
概括
本研究介绍了风力发电系统的先进控制策略,以减少扭矩波动和波. 拟议的方法提高了系统的可靠性和性能,特别是在故障条件下.
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
- 控制理论 控制理论
背景情况:
- 风力发电转换系统的故障率很高,特别是在传统的三相发电机中.
- 感应发电机的电流波会引起扭矩波动,导致噪声和振动,因故障条件而加剧.
- 这些系统中的功率电子转换器容易出现短路 (SC) 和开路 (OC) 故障,影响系统稳定性.
研究的目的:
- 提出一种新的直接扭矩控制 (DTC) 策略,以减轻双星感应发电机 (DSIG) 中的扭矩波动和电流波.
- 提高风能转换系统的强度,以应对风速变化和变电器故障.
- 在正常和故障操作条件下减少系统的总波扭曲 (THD).
主要方法:
- 实施DTC策略与比例集成模糊逻辑控制器 (PIFLC) 结合.
- 使用粒子群优化 (PSO) 优化PIFLC的优化.
- 矢量空间分解 (VSD) 和修改空间矢量脉冲宽度调制 (MSVPWM) 的应用用于调.
- 模拟分析使用MATLAB/Simulink进行性能评估.
主要成果:
- 拟议的DTC-PIFLC-PSO控制器在风速变化和故障开关条件下表现出卓越的稳定性.
- 实现了扭矩波动和空隙波的显著减少.
- 与经典PI控制器相比,在有缺陷和无缺陷条件下,总波扭曲 (THD) 显著下降.
结论:
- DTC-PIFLC-PSO控制器为提高基于DSIG的风力发电系统的可靠性和性能提供了有效的解决方案.
- 拟议的控制策略成功地解决了当前波和扭矩波纹所带来的挑战.
- 这种方法在减少THD方面提供了显著的优势,提高了整体系统的效率和稳定性.
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