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Content Provider | IEEE Xplore Digital Library |
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Author | Shenghu Li Zhengkai Liu Yudong Jia |
Copyright Year | 2011 |
Description | Author affiliation: School of Electrical Engineering and its Automation, Hefei University of Technology, Hefei, Anhui 230009, China (Shenghu Li; Zhengkai Liu; Yudong Jia) |
Abstract | The doubly-fed induction generators (DFIGs) are widely applied in wind power conversion. The wind turbines are operated under speed control or power control, and suffered from wind disturbance or network contingency. Full expression of each DFIG involves many differential equations and lots of calculation effort. Dynamic equivalence is valuable to improve the calculation efficiency for the wind power systems. A dynamic equivalence method is presented for the DFIGs in this paper. The wind speed and power coefficient are aggregated by the control modes differentiating the wind speed below or over the rated value. The wind turbines, the drive trains, the induction generators, the converters and the control systems, are given by the capacity-weighted mean values. The wind disturbance and the network contingency are applied to validate the equivalence error. The terminal voltage, the active and reactive powers of the wind farm, the rotor power angle and the frequency of the synchronous generators before and after aggregation are compared, showing desirable accuracy and calculation efficiency. |
Starting Page | 1 |
Ending Page | 6 |
File Size | 1006338 |
Page Count | 6 |
File Format | |
ISBN | 9781457710001 |
ISSN | 19449925 |
e-ISBN | 9781457710025 |
e-ISBN | 9781457710018 |
DOI | 10.1109/PES.2011.6038990 |
Language | English |
Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Publisher Date | 2011-07-24 |
Publisher Place | USA |
Access Restriction | Subscribed |
Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subject Keyword | Wind speed Wind farms Rotors Power system dynamics Induction generators Wind power generation Wind turbines converter Doubly-fed induction generator (DFIG) dynamic aggregation stability analysis wind turbine |
Content Type | Text |
Resource Type | Article |
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