NDLI: Research on the unit power factor control of directly-driven PM wind generator

Content Provider	IEEE Xplore Digital Library
Author	Nian Heng Liu Jiao He Yikang
Copyright Year	2008
Description	Author affiliation: Coll. of Electr. Eng., Zhejiang Univ., Hangzhou (Nian Heng; Liu Jiao; He Yikang)
Abstract	Compared with the doubly-fed AC excited wind-power generation system, the directly-driven permanent magnet synchronous generator (PMSG) for wind-power system has advantage of simpler structure, higher generation efficiency and more reliable operation. To solve the weakness associated with the traditional $i_{d}=0$ control scheme, such as relatively large power rating for generator-side converter and correspondingly increased power losses, a kind of unit power factor control strategy is put forward in this paper. The proposed new scheme is based on the control of back-to-back PWM converter used to connect PMSG with the grid, in which the unit power factor control is applied to the PMSG side converter by calculating the stator current, the grid voltage oriented control is appiled to the grid side converter to regulate output power factor of wind-power system. System simulation result demonstrates that using the proposed new scheme, the PMSG is capable of always keeping unit power factor operation at the steady-state and dynamic process both in the independent control of grid-connected active power and reactive power.
Starting Page	2311
Ending Page	2315
File Size	547336
Page Count	5
File Format	PDF
ISBN	9781424438266
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-10-17
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	IEEE Consumer Electronics Society(CES)
Subject Keyword	Reactive power Wind power generation Power generation Wind energy generation Synchronous generators Voltage control Control systems AC generators Permanent magnets Power system reliability
Content Type	Text
Resource Type	Article

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