Analysis of mathematical modeling of different control strategies for variable speed control in wind energy conversion system (WECS)

Because of the environmental pollution problems and the economic benefits of fuel savings, there has been a growing interest in the renewable energy, especially wind energy power systems. There are still many unsolved challenges in expanding wind power, and there are numerous problems of interest to systems control researchers. The amount of energy obtained from a wind energy conversion system (WECS) depends not only on the characteristics of the wind regime at the site, but it also depends on the control strategy used for the WECS. In order to get the maximum power from the wind, the variable-speed wind turbine should run at different speed when wind speed changes. In this paper modeling and control scheme of the efficient mathematical methods are introduced. Models of several autonomous WECS have been developed using Matlab Simulink software. These allow easy performance evaluations and comparisons on different control strategies used in WECS.