Vector Control of Speed and Reactive Power of Brushless Doubly-Fed Induction Generator Based on Nonlinear Control Approach

Subject Areas : Renewable energy

Davoud Abootorabi Zarchi ¹ , Hossein Abootorabi Zarchi ² , Hamidreza Mosaddegh Hesar ³ , Mohammad Ali Salahmanesh ⁴

1 - Faculty of Engineering- Yazd University, Yazd, Iran
2 - Faculty of Engineering- Ferdowsi University of Mashhad, Mashhad, Iran
3 - Faculty of Engineering- Ferdowsi University of Mashhad, Mashhad, Iran
4 - Faculty of Engineering- Ferdowsi University of Mashhad, Mashhad, Iran

Received: 2021-11-17 Accepted : 2022-02-04 Published : 2023-08-23

Keywords: Model Reference Adaptive System, brushless doubly fed induction generator, sliding mode and PI combined controller, speed and reactive power control,

Abstract :

The brushless doubly fed induction generator (BDFIG) is one of the main members of doubly fed electrical generators which has come close to commercialization in recent years. This generator has some of outstanding features of squirrel cage induction generator and conventional synchronous generator, and at the same time, it requires a partially rated converter. One of the major challenges in the evolution of this generator is the problem of controlling it and the necessity of having a suitable and efficient controller to stabilize the generator in the operating speed range. Therefore, in this paper, a comprehensive vector control scheme based on nonlinear control methods is proposed. Accordingly, a reference model controller fulfills the control of rotor speed. In addition, for simultaneous control of reactive power and torque, a combined approach based on sliding mode and PI controllers are used. The simulation results show in presence of the mentioned control structure, the dynamic response of system in different conditions such as change of mechanical input power and reference speed variation is much more appropriate than when a linear controller is used.

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