Full Text:   <3528>

CLC number: TM315; TM614

On-line Access: 

Received: 2007-03-02

Revision Accepted: 2007-05-19

Crosschecked: 0000-00-00

Cited: 32

Clicked: 3475

Citations:  Bibtex RefMan EndNote GB/T7714

-   Go to

Article info.
1. Reference List
Open peer comments

Journal of Zhejiang University SCIENCE A 2007 Vol.8 No.8 P.1330~1339

http://doi.org/10.1631/jzus.2007.A1330


Enhanced control of DFIG-used back-to-back PWM VSC under unbalanced grid voltage conditions


Author(s):  HU Jia-bing, HE Yi-kang, NIAN Heng

Affiliation(s):  School of Electrical Engineering, Zhejiang University, Hangzhou 310027, China

Corresponding email(s):   emec_zju@zju.edu.cn, ykhe@zju.edu.cn

Key Words:  Unbalanced grid voltage, Doubly-fed induction generator (DFIG), Back-to-back (BTB), Fault-ride through (FRT), Voltage source converter (VSC)


HU Jia-bing, HE Yi-kang, NIAN Heng. Enhanced control of DFIG-used back-to-back PWM VSC under unbalanced grid voltage conditions[J]. Journal of Zhejiang University Science A, 2007, 8(8): 1330~1339.

@article{title="Enhanced control of DFIG-used back-to-back PWM VSC under unbalanced grid voltage conditions",
author="HU Jia-bing, HE Yi-kang, NIAN Heng",
journal="Journal of Zhejiang University Science A",
volume="8",
number="8",
pages="1330~1339",
year="2007",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.2007.A1330"
}

%0 Journal Article
%T Enhanced control of DFIG-used back-to-back PWM VSC under unbalanced grid voltage conditions
%A HU Jia-bing
%A HE Yi-kang
%A NIAN Heng
%J Journal of Zhejiang University SCIENCE A
%V 8
%N 8
%P 1330~1339
%@ 1673-565X
%D 2007
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.2007.A1330

TY - JOUR
T1 - Enhanced control of DFIG-used back-to-back PWM VSC under unbalanced grid voltage conditions
A1 - HU Jia-bing
A1 - HE Yi-kang
A1 - NIAN Heng
J0 - Journal of Zhejiang University Science A
VL - 8
IS - 8
SP - 1330
EP - 1339
%@ 1673-565X
Y1 - 2007
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.2007.A1330


Abstract: 
This paper presents a unified positive- and negative-sequence dual-dq dynamic model of wind-turbine driven doubly-fed induction generator (DFIG) under unbalanced grid voltage conditions. Strategies for enhanced control and operation of a DFIG-used back-to-back (BTB) PWM voltage source converter (VSC) are proposed. The modified control design for the grid-side converter in the stationary αβ frames diminishes the amplitude of DC-link voltage ripples of twice the grid frequency, and the two proposed control targets for the rotor-side converter are alternatively achieved, which, as a result, improve the fault-ride through (FRT) capability of the DFIG based wind power generation systems during unbalanced network supply. A complete unbalanced control scheme with both grid- and rotor-side converters included is designed. Finally, simulation was carried out on a 1.5 MW wind-turbine driven DFIG system and the validity of the developed unified model and the feasibility of the proposed control strategies are all confirmed by the simulated results.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

Reference

[1] Hu, J.B., He, Y.K., 2006. Dynamic modeling and robust current control of wind-turbine used DFIG during AC voltage dip. J. Zhejiang Univ. Sci. A, 7(10):1757-1764.

[2] Hu, J.B., He, Y.K., 2007. Modeling and control of grid-connected voltage sourced converter under generalized unbalanced operation conditions. Submitted to IEEE Trans. on Energy Conv., under review.

[3] Idsoe Nass, B., Undeland, T., Gjengedal, T., 2002. Methods for Reduction of Voltage Unbalance in Weak Grids Connected to Wind Plants. IEEE Workshop on Wind Power and the Impacts on Power Systems. Norway.

[4] Morren, J., de Haan, S.W.H., Bauser, P., Pierik, J.T.G., 2003. Comparison of Complete and Reduced Models of a Wind Turbine Using Doubly-Fed Induction Generator. Proc. 10th European Conference on Power Electronics and Applications. Toulouse.

[5] Morren, J., de Haan, S.W.H., 2005. Ride-through of wind turbines with doubly-fed induction generator during a voltage dip. IEEE Trans. on Energy Conv., 20(2):435-441.

[6] National Grid Transco, 2004. Appendix 1: Extracts from the Grid Code-Connection Conditions. Http://www.national-grid.com

[7] Pena, R., Clare, J.C., Asher, G.M., 1996. Doubly fed induction generator using back-to-back PWM converter and its application to variable-speed wind-energy generation. IEE Proc. B, 143(3):231-241.

[8] Petersson, A., Harnefors, L., Thiringer, T., 2005. Evaluation of current control methods for wind turbines using doubly-fed induction machines. IEEE Trans. on Power Elect., 20(1):227-235.

[9] Stankovic, A.V., Lipo, T.A., 2001. A novel control method for input output harmonic elimination of the PWM boost type rectifier under unbalanced operating conditions. IEEE Trans. on Power Elect., 16(5):603-611.

[10] Sun, T., Chen, Z., Blaabjerg, F., 2005. Transient stability of DFIG wind turbines at an external short-circuit fault. Wind Energy, 8(3):345-360.

[11] Tapia, A., Tapia, G., Ostolaza, J.X., Saenz, J.R., 2003. Modeling and control of a wind turbine driven doubly fed induction generator. IEEE Trans. on Energy Conv., 18(2):194-204.

[12] Xu, L., Andersen, B.R., Cartwright, P., 2005. VSC transmission operating under unbalanced AC conditions-analysis and control design. IEEE Trans. on Power Del., 20(1):427-434.

[13] Yazdani, A., Iravani, R., 2006. A unified dynamic model and control for the voltage-sourced converter under unbalanced grid conditions. IEEE Trans. on Power Del., 21(3):1620-1629.

[14] Yuan, X., Merk, W., Stemmler, H., Allmeling, J., 2002. Stationary-frame generalized integrators for current control of active power filters with zero steady-state error for current harmonics of concern current under unbalanced and distorted operating conditions. IEEE Trans. on Ind. Appl., 38(2):523-532.

Open peer comments: Debate/Discuss/Question/Opinion

<1>

Please provide your name, email address and a comment





Journal of Zhejiang University-SCIENCE, 38 Zheda Road, Hangzhou 310027, China
Tel: +86-571-87952783; E-mail: cjzhang@zju.edu.cn
Copyright © 2000 - Journal of Zhejiang University-SCIENCE