Sensorless control for small wind turbines with permanent magnet synchronous generator

This paper presents a robust sensorless control system for variable-speed, fixed-pitch wind turbines with direct-drive permanent magnet synchronous generator. It covers both the partial-load and full-load operating regimes. In partial-load, the aim of the control action is to maximize the harvested energy form the wind while keeping the wind turbine stable. In full-load operation mode, a second controller limits the output power to its rated value by creating the conditions for aerodynamic stall. The effectiveness of the proposed control system is assessed with a 2.2kW laboratory test-bench under several operating conditions.

[1]  Ronilson Rocha.  A sensorless control for a variable speed wind turbine operating at partial load , 2011 .

[2]  H. Farhangi,et al.  The path of the smart grid , 2010, IEEE Power and Energy Magazine.

[3]  C. Vlad,et al.  Output power maximization of low-power wind energy conversion systems revisited: Possible control solutions , 2010 .

[4]  Lucy Pao,et al.  Optimal Control of Wind Energy Systems: Towards a Global Approach (Munteanu, I. et al.; 2008) [Bookshelf] , 2009, IEEE Control Systems.

[5]  Hai-Jiao Guo,et al.  A Novel Algorithm for Fast and Efficient Speed-Sensorless Maximum Power Point Tracking in Wind Energy Conversion Systems , 2011, IEEE Transactions on Industrial Electronics.

[6]  Zhe Chen,et al.  Design optimization and site matching of direct-drive permanent magnet wind power generator systems , 2009 .

[7]  K. Tan,et al.  Optimum control strategies in energy conversion of PMSG wind turbine system without mechanical sensors , 2004, IEEE Transactions on Energy Conversion.

[8]  Zhe Chen,et al.  A Review of the State of the Art of Power Electronics for Wind Turbines , 2009, IEEE Transactions on Power Electronics.

[9]  Li Ran,et al.  New Constant Electrical Power Soft-Stalling Control for Small-Scale VAWTs , 2010, IEEE Transactions on Energy Conversion.

[10]  Longya Xu,et al.  Sensorless Control of Permanent Magnet Generator in Wind Turbine Application , 2006, Conference Record of the 2006 IEEE Industry Applications Conference Forty-First IAS Annual Meeting.

[11]  Eduard Muljadi,et al.  A conservative control strategy for variable-speed stall-regulated wind turbines , 2000 .

[12]  Ching-Tsai Pan,et al.  A Novel Sensorless MPPT Controller for a High-Efficiency Microscale Wind Power Generation System , 2010, IEEE Transactions on Energy Conversion.