Stabilization Improvement of an Islanded System with Doubly-fed Induction Generator Based Wind Turbine

During recent years, the high consumption of limited resources of fossil fuels, which results in greenhouse effect and global warming has made a serious commitment for scientists to think of renewable and clean resources all over the world. Among renewable energy resources, wind energy has significant advantages such as: the reasonable cost of its generation, availability and being environmental friendly that have encouraged scientists to take in to account this type of energy. In the turbines of generating wind, preventing the waste of energy necessitates the control of voltage and frequency. The DFIG based turbines give the possibility of controlling and improving of stabilization after being islanded from the network, which causes keep working perfecting. In the presented paper, we have provided a new method which is useful, during islanding operation and different velocities of wind by control of voltage and frequency from the control engineering prospective. The research has been carried out through modeling and simulating of DFIG turbines by the use of Simulink/Matlab platform. The results of simulation reveal the fact that controllers of wind turbines based DFIG have a great function throughout islanding state.

کلیدواژه ها:

Islanding operation ، DFIG wind turbine ، and voltage-frequency stability improvement