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Rotor Position-Sensorless Algorithms for Direct Power Control of Rotor-Tied DFIG
IEEE Transactions on Power Electronics ( IF 6.7 ) Pub Date : 2020-11-25 , DOI: 10.1109/tpel.2020.3040705
Rajeshkumar M. Prasad , Mahmadasraf A. Mulla

In this letter, direct power control (DPC) of rotor-tied doubly fed induction generator (DFIG) is presented for the first time. First, a theoretical study is presented to acknowledge the fundamentals of DPC of rotor-tied DFIG. Thereafter, two rotor position-sensorless algorithms (RPSAs) are presented to eliminate the need of rotor position sensor. The RPSA-I is developed using the mathematical model of rotor-tied DFIG and necessitates at least four current sensors. The RPSA-II is evolved with the requirement of only two current sensors and, consequently, get rid of complex computations from the algorithm. In addition to this, it is independent of all the machine parameters and stable at or near synchronous speed. Finally, the proposed scheme is tested by real-time implementation of DFIG-based wind energy conversion system under the dynamic wind speed conditions.

中文翻译:

转子系DFIG直接功率控制的转子位置无传感器算法

在这封信中,首次提出了带有转子的双馈感应发电机(DFIG)的直接功率控制(DPC)。首先,进行了理论研究,以确认转子式双馈变速箱DPC的基本原理。此后,提出了两种转子位置无传感器算法(RPSA),以消除对转子位置传感器的需求。RPSA-I是使用转子式双馈异步电动机的数学模型开发的,需要至少四个电流传感器。RPSA-II的发展仅需要两个电流传感器,因此摆脱了算法中的复杂计算。除此之外,它与所有机器参数无关,并且在同步速度或接近同步速度时稳定。最后,
更新日期:2020-11-25
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