Modeling and simulation of a gearless variable speed wind turbine system with PMSG

Author(s):  
Ghaeth Fandi ◽  
Famous O. Igbinovia ◽  
Ibrahim Ahmad ◽  
Jan Svec ◽  
Zdenek Muller
2015 ◽  
Vol 48 (21) ◽  
pp. 244-250 ◽  
Author(s):  
Shanzhi LI ◽  
Haoping WANG ◽  
Yang TIAN ◽  
Abdel AITOUCHE

2009 ◽  
Vol 131 (3) ◽  
Author(s):  
Andrew H. Rex ◽  
Kathryn E. Johnson

Variable speed operation enables wind turbine systems to increase their aerodynamic efficiency and reduce fatigue loads. An alternative to the current electrically based variable speed technologies is the continuously variable transmission (CVT). A CVT is a transmission whose gear ratio can be adjusted to take on an infinite number of settings within the range between its upper and lower limits. CVT research in wind turbine applications predicts an improvement in output power and torque loads compared with fixed-speed machines. Also, a reduction in the harmonic content of the currents is anticipated by eliminating the power electronics. This paper develops a model that combines a CVT model with the FAST wind turbine simulator for simulating the system’s performance in MATLAB/SIMULINK. This model is useful for control development for a variable-speed wind turbine using a CVT. The wind turbine with CVT is simulated using two controllers: a proportional-integral controller and a nonlinear torque controller of the type commonly used in the wind industry.


2015 ◽  
Vol 37 ◽  
pp. 397
Author(s):  
Somayeh Abdolzadeh ◽  
Seyed Mohammad Ali Mohammadi

The PID controller design is a very popular method for controlling industrial processes and due to its simple structure and effective operation; it is used in a wide range of industries. In this paper, a method is provided for setting up the PID controller and Particle swarm optimization (PSO) algorithm is used to design a variable speed wind turbine system. The provided method has advantages such as easy implementation, stable convergence characteristics and high performance in computing. Finally the results are displayed.


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