Internal Model Current Control of Brushless Doubly Fed Induction Machines

Mei Su, Weiyu Jin, Guanguan Zhang, Weiyi Tang and Frede Blaabjerg
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Mei Su: School of Information Science and Engineering, Central South University, Changsha 410083, China
Weiyu Jin: School of Information Science and Engineering, Central South University, Changsha 410083, China
Guanguan Zhang: School of Information Science and Engineering, Central South University, Changsha 410083, China
Weiyi Tang: School of Information Science and Engineering, Central South University, Changsha 410083, China
Frede Blaabjerg: Department of Energy Technology, Aalborg University, DK-9220 Aalborg, Denmark

Energies, 2018, vol. 11, issue 7, 1-19

Abstract: In the wind energy generation system, the brushless doubly-fed induction machine (BDFIM) has shown significant application potential, since it eliminates the electric brush and slip ring. However, the complicated rotor structure increases the control difficulty, especially resulting in complicated coupled terms in the current sub-system, which deteriorates the dynamic performance and reduces the system robustness. In order to address the problems caused by complex coupled terms, an internal model current control strategy is presented for the BDFIM, and an active damping term is designed for suppressing the disturbance caused by the total resistance. The proposed method simplifies the controller parameters design, and it achieves the fast-dynamic response and the good tracking performance, as well as good robustness. On the other hand, the feedforward term composed by the grid voltage is added to the internal model controller in order to suppress the disturbance when the symmetrical grid voltage sag happens. Finally, the simulation and experimental results verify the feasibility and effectiveness of the proposed method.

Keywords: brushless doubly-fed induction machine; current controller; internal model control; parameter estimation (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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