Modelling and control in Wind Energy Conversion Systems (WECS)

This paper encompasses the study of modelling and design of WECS, using a wind turbine with known dynamic characteristics and a permanent magnet synchronous generator driven by a back to back power converter topology. The dynamic modeling allows to know the response of the turbine generator system in the whole range of operation. In this study, it is proposed a variable structure control scheme with two different kind of operation, namely Maximum Power Point Tracking (MPPT) and Constant Power (CP). In the CP region, it is demonstrated that the system is controllable with the speed control loop while that using torque control an unstable control loop results.

[1]  Gengyin Li,et al.  Modeling of the Wind Turbine with a Permanent Magnet Synchronous Generator for Integration , 2007, 2007 IEEE Power Engineering Society General Meeting.

[2]  A.M. Knight,et al.  A review of power converter topologies for wind generators , 2005, IEEE International Conference on Electric Machines and Drives, 2005..

[3]  J.H.R. Enslin,et al.  Performance optimization for doubly-fed wind power generation systems , 1998, Conference Record of 1998 IEEE Industry Applications Conference. Thirty-Third IAS Annual Meeting (Cat. No.98CH36242).

[4]  Fernando D. Bianchi,et al.  Wind Turbine Control Systems: Principles, Modelling and Gain Scheduling Design , 2006 .

[5]  H. Siguerdidjane,et al.  Nonlinear control of variable speed wind turbines for power regulation , 2005, Proceedings of 2005 IEEE Conference on Control Applications, 2005. CCA 2005..

[6]  L. Harnefors.  Speed estimation from noisy resolver signals , 1996 .

[7]  Kathryn E. Johnson.  Adaptive Torque Control of Variable Speed Wind Turbines , 2004 .

[8]  Cao Binggang,et al.  A new maximum power point tracking control scheme for wind generation , 2002, Proceedings. International Conference on Power System Technology.

[9]  M. Ehsani,et al.  A novel position sensor elimination technique for the interior permanent-magnet synchronous motor drive , 1989, Conference Record of the IEEE Industry Applications Society Annual Meeting,.

[10]  S. Chatratana,et al.  Control Performance Analysis of Feedforward and Maximum Peak Power Tracking for Small-and Medium-Sized Fixed Pitch Wind Turbines , 2006, 2006 9th International Conference on Control, Automation, Robotics and Vision.

[11]  Frede Blaabjerg,et al.  Control in Power Electronics: selected problems , 2002 .