A new control strategy of variable speed wind turbine generator for three-phase grid-connected applications

This paper discusses a new control scheme of a three-phase grid-connected wind energy conversion system (WECS). The control incorporates a maximum power point tracker (MPPT) for optimal use of the wind resource. In addition, reactive power compensation of the electric grid is included, operating simultaneously and independently of the active power generation. The wind turbine generator (WTG) consists of a variable speed wind turbine and the MPPT is implemented via a DC-DC boost converter. A three-level voltage source inverter (VSI) is used as interface with the AC power grid. Validation of models and control schemes is performed by using the MATLAB/Simulink environment. Moreover, a 400 W WECS experimental set-up was used to demonstrate the effectiveness of the MPPT algorithm proposed.

[1]  L. Freris.  Wind energy conversion systems , 1990 .

[2]  Seung-Ho Song,et al.  Implementation and control of grid connected AC-DC-AC power converter for variable speed wind energy conversion system , 2003, Eighteenth Annual IEEE Applied Power Electronics Conference and Exposition, 2003. APEC '03..

[3]  Tore Undeland,et al.  Power Electronics: Converters, Applications and Design , 1989 .

[4]  V. T. Ranganathan,et al.  A Method of Tracking the Peak Power Points for a Variable Speed Wind Energy Conversion System , 2002, IEEE Power Engineering Review.

[5]  Siegfried Heier,et al.  Grid Integration of Wind Energy Conversion Systems , 1998 .

[6]  P.E. Mercado,et al.  Control Design and Simulation of DSTATCOM with Energy Storage for Power Quality Improvements , 2006, 2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America.

[7]  C. Chellamuthu,et al.  Modeling and simulation of grid connected wind electric generating system , 2002, 2002 IEEE Region 10 Conference on Computers, Communications, Control and Power Engineering. TENCOM '02. Proceedings..

[8]  Marcelo G. Molina,et al.  An Efficient Maximum-power-point-tracking Controller For Grid-connected Photovoltaic Energy Conversion System , 2007 .

[9]  Thomas Ackermann,et al.  Wind Power in Power Systems , 2005 .