Test-Bed of Doubly Fed Induction Generator for Variable-Speed Constant-Frequency Wind Power Generation

In this paper, a test-bed built for the experiments of variable-speed constant-frequency (VSCF) wind power generation is described. The test-bed is composed of a doubly fed induction generator (DFIG), a VVVF inverter driven squirrel motor for wind turbine simulation, dual-DSP-based controllers, as well as a PC-based data-acquisition and control system. In this system, a pair of bidirectional PWM voltage-source converters in a back-to-back configuration is inserted between the rotor windings and the grid lines to control the rotor currents in order to vary the slip power thereby implementing the VSCF operation. Vector-control is used to independently control the flow of active and reactive power between the system and grid line, and to make it easy for the system to implement maximal power point tracking (MPPT) and optimal reactive power splitting in wind power plants

[1]  R. Datta,et al.  Decoupled control of active and reactive power for a grid-connected doubly-fed wound rotor induction machine without position sensors , 1999, Conference Record of the 1999 IEEE Industry Applications Conference. Thirty-Forth IAS Annual Meeting (Cat. No.99CH36370).

[2]  J. Morren,et al.  Ridethrough of wind turbines with doubly-fed induction generator during a voltage dip , 2005, IEEE Transactions on Energy Conversion.

[3]  David J. Atkinson,et al.  Stator-flux-oriented control of a doubly-fed induction machine with and without position encoder , 2000 .

[4]  J.M. Carrasco,et al.  DSP-based doubly fed induction generator test bench using a back-to-back PWM converter , 2004, 30th Annual Conference of IEEE Industrial Electronics Society, 2004. IECON 2004.

[5]  M. Yamamoto,et al.  Active and reactive power control of doubly-fed wound rotor induction generator , 1990, 21st Annual IEEE Conference on Power Electronics Specialists.

[6]  Greg Asher,et al.  A doubly fed induction generator using back-to-back PWM converters supplying an isolated load from a variable speed wind turbine , 1996 .

[7]  Jon Clare,et al.  Doubly fed induction generator using back-to-back PWM converters and its application to variable-speed wind-energy generation , 1996 .

[8]  Andrea Tilli,et al.  Indirect stator flux-oriented output feedback control of a doubly fed induction machine , 2003, IEEE Trans. Control. Syst. Technol..

[9]  G. Joos,et al.  Optimal reactive power allocation in a wind powered doubly-fed induction generator , 2004, IEEE Power Engineering Society General Meeting, 2004..

[10]  Wilfried Hofmann,et al.  Control of an optimized power flow in wind power plants with doubly-fed induction generators , 2003, IEEE 34th Annual Conference on Power Electronics Specialist, 2003. PESC '03..

[11]  Jin Zhao,et al.  A new control strategy of unity power factor for three-phase PWM rectifier system , 2004, 30th Annual Conference of IEEE Industrial Electronics Society, 2004. IECON 2004.

[12]  T. Thiringer,et al.  Comparison between stator-flux and grid-flux-oriented rotor current control of doubly-fed induction generators , 2004, 2004 IEEE 35th Annual Power Electronics Specialists Conference (IEEE Cat. No.04CH37551).

[13]  C. Dufour,et al.  A real-time simulator for doubly fed induction generator based wind turbine applications , 2004, 2004 IEEE 35th Annual Power Electronics Specialists Conference (IEEE Cat. No.04CH37551).