PERFORMANCE OF SENSORLESS CONTROL OF PERMANENT MAGNET SYNCHRONOUS GENERATOR IN WIND TURBINE SYSTEM
 
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Wroclaw University of Technology, Department of Electrical Machines, Drives and Measurements
CORRESPONDING AUTHOR
Piotr Gajewski   

Wroclaw University of Technology, Department of Electrical Machines, Drives and Measurements, ul. Smoluchowskiego 19, 50-372 Wrocław, Poland
 
Power Electronics and Drives 2016;1 (36)(2)
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ABSTRACT
Background: The article presents the sensorless control of permanent magnet synchronous generator (PMSG) in the variable speed wind energy conversion system. The considered system of wind turbine consists of PMSG and back-to-back power converter. Material and methods: In the control systems of both converters the application of vector control method have been applied. In the control system of the MSC the Rotor Field Oriented Control (RFOC) with sensorless method has been used. Additionally in order to obtain the maximum power from the wind turbine the optimal tip speed ratio MPPT algorithm has been included. Results: The simulation results demonstrate the high accuracy of proposed sensorless control strategy. The application of sensorless control based on vector control has many advantages including higher reliability, simplicity and easy to implementation. Additionally, the application of vector control with MPPT algorithm allows to obtain the conversion of the maximum power obtained from wind turbine. Conclusions: This paper has presented a wind energy conversion system with direct-driven PMSG. For estimation of angular rotor speed and rotor position the sensorless vector control of PMSG using a flux linkage with SR-PLL has been used. The simulation results demonstrates that the tip speed ratio and power coefficient of wind turbine are kept at maximum values.
eISSN:2543-4292
ISSN (print):2451-0262