一个新的无传感器的电压和频率控制独立的DFIG基于死拍直旋转器流量控制-实验验证实验验验证
Mohammed Saci Chabani1, M T Benchouia1, A Golea1
1LGEB Laboratory, University of Biskra, BP 145, Biskra 07000, Algeria.
ISA transactions
|January 4, 2025
概括
这项研究引入了一种新的无传感器控制方法,用于独立的双源感应发电机 (DFIG). 该方法通过直接管理转子流量来简化控制,提高效率并降低孤立电力系统的成本.
科学领域:
- 电气工程 电气工程
- 电力系统 电力系统
- 控制理论 控制理论
背景情况:
- 双输电感应发电机 (DFIG) 对于可再生能源的整合至关重要.
- 现有的控制方法通常需要速度传感器或复杂的估计器,增加成本和复杂性.
- 独立的DFIGs为孤立的负载提供了独特的控制挑战.
研究的目的:
- 为独立的DFIGs开发一种没有传感器的电压和频率控制策略.
- 消除对转子速度传感器和计算密集型估计器的需求.
- 为了降低DFIG控制系统的整体成本和复杂性.
主要方法:
- 一种新的控制方法直接调节转子流量向量的大小和角度.
- 使用两个闭环比例整合 (PI) 调节器来生成参考信号.
- 没有旋转器电流/电压控制或定位器电流测量用于负载功率估计的操作.
主要成果:
- 成功实现了无传感器控制,消除了对速度传感器/估计器的需求.
- 实现了准确的定位器电压大小和频率调节.
- 在没有事先知识的情况下,在次同步和超同步速度范围内的有效运行.
- 在3千瓦的DFIG上进行的实验验证证证了与经典的野外定向控制 (FOC) 相比的优越性能.
结论:
- 拟议的无传感器控制方法为独立的DFIG提供了一种简化,经济有效和强大的解决方案.
- 它提供了高性能和灵活性,独立于旋转器转速信息运行.
- 这种方法几乎独立于参数,只需要转子电阻知识,使其非常实用.
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