A comprehensive review on the grid integration of doubly fed induction generator

As a result of the growing demand for electricity and environmental constraints, the generation of electrical energy from renewable sources of energy has increased recently. The renewable energy sources, especially wind power plants are integrated to power networks all around the world. The rising share of wind turbine energy, in the existing power system, has created new opportunities and challenges. For wind turbine energy generation doubly fed induction generators are most suitable due to their various advantages over fixed speed wind turbine systems. These generators have ability to improve stability and power quality of the existing power systems. Therefore more attention has been paid by many researchers recently to address various challenges of grid connection of DFIG. A comprehensive survey, of different issues associated with integration of DFIG based system into the grid is presented in this paper.

► Research in the area of grid-connected DFIG based system is classified.
► Areas like LVRT capability, transient and small signal stability are elaborated.
► Research areas like DFIG for frequency and reactive power support are included.
► Research work in all premier journals published till date is included.
► Guidelines for further research opportunities in above areas are highlighted.