Dynamic modelling and robust current control of wind-turbine driven DFIG during external AC voltage dip

被引：4

作者：

Hu J.-B. ^{[1
]}

He Y.-K. ^{[1
]}

机构：

[1] Department of Electrical Engineering, Zhejiang University

来源：

Journal of Zhejiang University-SCIENCE A | 2006年 / 7卷 / 10期

基金：

中国国家自然科学基金;

关键词：

Doubly-Fed Induction Generator (DFIG); Fault Ride-Through (FRT); Internal Model Control (IMC); Variable-Speed Constant-Frequency (VSCF); Wind energy generation;

D O I：

10.1631/jzus.2006.A1757

中图分类号：

学科分类号：

摘要：

Doubly-Fed Induction Generator (DFIG), with vector control applied, is widely used in Variable-Speed Constant- Frequency (VSCF) wind energy generation system and shows good performance in maximum wind energy capture. But in two traditional vector control schemes, the equivalent stator magnetizing current is considered invariant in order to simplify the rotor current inner-loop controller. The two schemes can perform very well when the grid is in normal condition. However, when grid disturbance such as grid voltage dip or swell fault occurs, the control performance worsens, the rotor over current occurs and the Fault Ride-Through (FRT) capability of the DFIG wind energy generation system gets seriously deteriorated. An accurate DFIG model was used to deeply investigate the deficiency of the traditional vector control. The improved control schemes of two typical traditional vector control schemes used in DFIG were proposed, and simulation study of the proposed and traditional control schemes, with robust rotor current control using Internal Model Control (IMC) method, was carried out. The validity of the proposed modified schemes to control the rotor current and to improve the FRT capability of the DFIG wind energy generation system was proved by the comparison study.

引用

页码：1757 / 1764

页数：7

共 12 条

[1]

Anaya-Lara O., Cartwright P., Ekanayake J.B., Electrical stability of large wind farms-grid connections and modeling, Proc. 2004 AWEA Conference, (2004)

[2]

Conraths H.J., Rotor control generator system for wind energy applications, Proc. EPE2001, (2001)

[3]

Hansen L.H., Helle L., Blaabjerg F., Rithite E., Munk-Nielsen S., Bindner H., Sorensen P., Bak-Jensen B., Conceptual survey of generators and power electronics for wind turbines, (2001)

[4]

Harnefors L., Nee H.P., Model-based current control of AC machines using the internal model control method, IEEE Trans. Ind. Appl., 34, 1, pp. 133-141, (1998)

[5]

Hu J.B., He Y.K., Liu Q.H., Optimized active power reference based maximum wind energy tracking control strategy, Automation of Electric Power Systems, 29, 24, pp. 32-38, (2005)

[6]

Morren J., de Haan S.W.H., Ridethough of wind turbines with doubly-fed induction generator during a volage dip, IEEE Transactions on Energy Conversion, 20, 2, pp. 435-441, (2005)

[7]

Muller S., Deicke M., de Doncker R.W., Doubly fed induction generator system for wind turbines, IEEE Industry Application Magazine, 8, 3, pp. 26-33, (2002)

[8]

Appendix 1: Extracts from the grid code-connection conditions, (2004)

[9]

Pena R., Clare J.C., Asher G.M., Doubly fed induction generator using back-to-back PWM converters and its application to variable-speed wind-energy generation, IEEE Proceedings of Electric Power Applications, 143, 3, pp. 231-241, (1996)

[10]

Sun T., Chen Z., Blaabjerg F., Voltage recovery of grid-connected wind turbines with DFIG after a short-circuit fault, 35th Annual IEEE Power Electronics Specialist Conference, pp. 1991-1997, (2004)

← 1 2 →