NDLI: An adaptive LVRT control for DFIG wind power system

Content Provider	IEEE Xplore Digital Library
Author	Zhang Jian Xue Ancheng Chen Jinmei Bi Tianshu Wang Ningbo Ma Yanhong
Copyright Year	2012
Description	Author affiliation: State Key Laboratory for Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 10206, P.R. China (Zhang Jian; Xue Ancheng; Chen Jinmei; Bi Tianshu) \|\| Wind Power Technology Center of Gansu Electric Power Company, Lanzhou 730050, China (Wang Ningbo; Ma Yanhong)
Abstract	For the doubly fed induction generator (DFIG), the rotor side Crowbar with constant resistance is a popular approach to protect the wind turbine and improve lower voltage ride through (LVRT). However, the responses of the DFIG are different according to the different degree of voltage dip. In addition, in certain condition, the constant Crowbar resistance may be over-estimated or down-estimated and result in damage to the DFIG. By recognizing this, this paper proposes an adaptive LVRT controller which using the voltage dip degree to determine the resistance of the Crowbar resistor (CR). In detail, it first gets the resistance of worst fault with a simplified calculation for the worst fault, and then, obtains voltage dip degree by detection, and then, through PWM control generating the control signal to control the resistance of the Crowbar resistor. It builds the simulation model based on Real-time digital simulator (RTDS). The simulation results show that the proposed adaptive controller could improve the ability of LVRT for the DFIG.
Starting Page	6747
Ending Page	6751
File Size	186549
Page Count	5
File Format	PDF
ISBN	9781467325813
ISSN	21612927
e-ISBN	9789881563811
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-07-25
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Chinese Assoc of Automati
Subject Keyword	Resistance Resistors Voltage fluctuations Rotor Crowbar Adaptive Control Rotors Stator windings Fault Degree Voltage control DFIG LVRT
Content Type	Text
Resource Type	Article

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