NDLI: Soft phase-locked loop design for wind power generation

Content Provider	IEEE Xplore Digital Library
Author	Mei Baishan Fu Chuang
Copyright Year	2011
Description	Author affiliation: Faculty of Electric and Automatic Engineering, Shanghai University of Electric Power, Shanghai, China (Mei Baishan) \|\| College of Information Engineering, Xiangtan University, Xiangtan, China (Fu Chuang)
Abstract	In wind power generation, phase angle of grid voltage is an important variable for decouple control of inverter connected to grid. When grid fault occurred which seriously affect wind turbine operating performance, such as grid voltage unbalance, voltage drop and so on, it is crucial to lock the phase angle as quickly and correctly as possible for the control. In this paper, a soft phase-locked loop (SPLL) is proposed in which decoupled double synchronous reference frame (DSRF SPLL) and variable parameter PI are used and d-q transformation and decoupling calculation are adopted to diminish the negative sequence and zero sequence component of the unbalanced grid voltage. By appropriate changing the parameters of PI controller, the system dynamic performance is improved without affecting the steady-state performance. In order to verify the effectiveness of the soft PLL, simulation module is built in Labview platform. The simulation result shows that proposed soft PLL not only has a fast dynamic performance and good steady-state performance, but also has a strong inhibiting effect for voltage distortion.
Starting Page	2672
Ending Page	2675
File Size	231045
Page Count	4
File Format	PDF
ISBN	9781424487547
e-ISBN	9781424487561
e-ISBN	9781424487554
DOI	10.1109/ICIEA.2011.5976048
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-06-21
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Voltage control Phase locked loops Harmonic analysis Power harmonic filters Power system stability Pi control Inverters double synchronous reference frame SPLL variable parameter PI control
Content Type	Text
Resource Type	Article

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