Doubly Fed Induction Generator Model-Based Sensor Fault Detection and Control Loop Reconfiguration
Doubly Fed Induction Generator Model-Based Sensor Fault Detection and Control Loop Reconfiguration
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DOI：
10.1109/tie.2009.2013683
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发表时间：
2009-02
影响因子：
7.7
通讯作者：
K. Rothenhagen;F. Fuchs
中科院分区：
文献类型：
--
作者：
K. Rothenhagen;F. Fuchs
容错作为一种提高分布式能源系统可靠性和可用性的手段正受到越来越多的关注。本文对风电机组中经常使用的电压定向双馈感应发电机进行了研究。此外，还给出了电流、电压和位置传感器的故障检测、隔离和重构。机器运行不会中断。观察者组提供用于故障检测的残差和用于重新配置的替换信号。控制暂时从闭环切换到开环，以使驱动器与错误的传感器读数解耦。在开环运行的短时间内，使用奇偶方程隔离故障。来自观察者的替换信号用于重新配置变速器并重新进入闭环控制。电流中没有大的瞬变。测量结果和稳定性分析表明效果良好。
Fault tolerance is gaining interest as a means to increase the reliability and availability of distributed energy systems. In this paper, a voltage-oriented doubly fed induction generator, which is often used in wind turbines, is examined. Furthermore, current, voltage, and position sensor fault detection, isolation, and reconfiguration are presented. Machine operation is not interrupted. A bank of observers provides residuals for fault detection and replacement signals for the reconfiguration. Control is temporarily switched from closed loop into open-loop to decouple the drive from faulty sensor readings. During a short period of open-loop operation, the fault is isolated using parity equations. Replacement signals from observers are used to reconfigure the drive and reenter closed-loop control. There are no large transients in the current. Measurement results and stability analysis show good results.