Modeling approach to evaluate wind turbine performance: Case study for a single wind turbine of 1.65 MW in Dernah Libya

Various techniques can be used to investigate the performance of mechanical-to-electrical energy conversion. These techniques vary from one to another, owing to their characteristics, complexity, performance, cost, etc. Besides, they are suitable for a wide range of energy sources and applications from very low to very high power levels. In this paper a mathematical model for a 1.65 MW Squirrel Cage Induction Generator (SCIG) wind turbine installed in Derna, Libya is tested in Matlab/Simulink and was validated using Alternative Transient Program-Electromagnetic Transient Program ATP-EMTP software through which its dynamic behavior can be accurately predicted. Power coefficient, active power, reactive power, and electromagnetic torque under two proposals are investigated, variable speed and fixed speed. It is noticed that there is a good agreement between the values predicted by the ATP-EMTP and the ones obtained from the Matlab/Simulink simulation. The model is useful for analyzing the behavior and performance of wind turbine in medium voltage power network.