NDLI: New direct power control for the wind-driven DFIG with improved performance

Content Provider	IEEE Xplore Digital Library
Author	Ebrahim, O.S. Jain, P.K. Nishith, G.
Copyright Year	2007
Description	Author affiliation: Queen's Univ., Kingston (Ebrahim, O.S.; Jain, P.K.)
Abstract	This paper proposes a novel model and new control scheme for the doubly fed induction generator (DFIG). The model describes the machine as two-input, two-output controlled object. The two output variables are the stator active and reactive powers while, the two input variables are the rotor voltage components. On the basis of derived model, a discrete-time robust optimal control is synthesized. The control law has proportional and integral actions and compensates one sample delay in the input owing to digital signal processor's execution time. Compared with the exiting control methods, the presented one provides (i) fast direct power control with constant switching frequency, (ii) extended stability margin, (iii) high robustness against parameters variations, and (iv) re -moves the necessity of any machine flux estimation. The effectiveness of the control strategy is confirmed through simulation studies on 2 MW DFIG under various operating conditions.
Starting Page	550
Ending Page	556
File Size	290983
Page Count	7
File Format	PDF
ISBN	9781424416271
DOI	10.1109/INTLEC.2007.4448840
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-09-30
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Power control Robust control Robust stability Induction generators Stators Reactive power Input variables Rotors Voltage Optimal control Wind energy doubly fed induction generator direct power control linear quadratic regulator
Content Type	Text
Resource Type	Article

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