NDLI: LQG Design for Megawatt-Class WECS With DFIG Based on Functional Models' Fidelity Prerequisites

Content Provider	IEEE Xplore Digital Library
Author	Muhando, E.B. Senjyu, T. Uehara, A. Funabashi, T. Chul-Hwan Kim
Copyright Year	1986
Abstract	With the increasing trend of connecting high penetrations of wind energy conversion systems (WECSs) to the transmission networks comes the challenge of updating the grid code for the connection of megawatt-class wind turbines. Starting with each WECS entity in the wind farm, the specifications would require the ability to complement some of the power system control services-voltage and frequency control-currently carried out by conventional synchronous generation. This paper investigates output power stability of a WECS in a highly fluctuating wind environment. Based on a performability model, a control strategy is devised for maximizing energy conversion in low to medium winds, and maintaining rated output in above rated winds while keeping torsional torque fluctuations to a minimum. Control is exercised via collective blade pitch control as well as generator torque control. The fundamental philosophy behind the proposed control strategy for the wind turbine coupled to an asynchronous doubly fed induction generator is general and can be easily extended to other WECS configurations.
Sponsorship	IEEE Power Engineering Society
Starting Page	893
Ending Page	904
Page Count	12
File Size	551626
File Format	PDF
ISSN	08858969
Volume Number	24
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-12-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Torque control Wind turbines Power generation Wind energy generation Induction generators Joining processes Wind energy Wind farms Power system control Frequency wind energy conversion system (WECS) Aerodynamic conversion blade pitch regulation doubly fed induction generator (DFIG) drive-train torsional torque linear quadratic Gaussian (LQG) modeling
Content Type	Text
Resource Type	Article
Subject	Energy Engineering and Power Technology Electrical and Electronic Engineering

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