Model predictive direct power control of three-level T-type inverter-fed doubly-fed induction generator for wind energy system
Tập 130 Số 1D (2021), Nghiên cứu
Tập 130 Số 1D (2021)

Model predictive direct power control of three-level T-type inverter-fed doubly-fed induction generator for wind energy system

Nghiên cứu
https://doi.org/10.26459/hueunijns.v130i1D.6316
Đã xuất bản 2021-12-31
Van Quang Binh Ngo
Faculty of Physics, University of Education, Hue University, 34 Le Loi St., Hue, Vietnam
Khanh Quang Nguyen
University of Science and Technology, The University of Danang, 54 Nguyen Luong Bang St., Lien Chieu, Da Nang, Vietnam
Tu Ha Nguyen
Faculty of Physics, University of Education, Hue University, 34 Le Loi St., Hue, Vietnam
Dinh Long Hoang
Faculty of Physics, University of Education, Hue University, 34 Le Loi St., Hue, Vietnam
Quoc Chinh Dao
Department of electrical and electronic engineering, Hue Industrial College, 70 Nguyen Hue St., Hue, Vietnam

Tóm tắt

The paper proposes a simplified direct power control strategy of a doubly-fed induction generator fed by a three-level T-type inverter based on finite control set model predictive control. A mathematical model based on grid voltage orientation was employed to determine the predictive values of the stator flux, rotor current, and capacitor voltages for all feasible rotor-side inverter output voltages. The active and reactive powers were calculated by using the grid voltage and the rotor current. A cost function was applied to track the active and reactive powers, maintain the balance of capacitor voltages, and reduce the common-mode voltage. The best switching control input was chosen by minimizing the cost function and implemented to the inverter. Different operating conditions of wind turbine systems were studied with Matlab/Simulink environment. The simulation results validate the improved performance of the proposed method compared with the classical control in terms of transient response and steady-state conditions.

https://doi.org/10.26459/hueunijns.v130i1D.6316
PDF (English)

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