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IJSTR >> Volume 9 - Issue 6, June 2020 Edition



International Journal of Scientific & Technology Research  
International Journal of Scientific & Technology Research

Website: http://www.ijstr.org

ISSN 2277-8616



Transient Stability Analysis Of Grid Connected DFIG Based Wind Turbine With FRT Controllers

[Full Text]

 

AUTHOR(S)

A.Mabel Jemima, Dr.J.Preetha Roselyn,CR Ragahavendran

 

KEYWORDS

DFIG, Fault Analysis Fault Ride Through(FRT), PQ controller ,Voltage dip,Voltage at PCC

 

ABSTRACT

The increasing penetration of wind power in power system has created many stability issues in the electrical grid. More conventional power plants are replaced by wind farms and accordingly the stability of the power system will be affected. During grid faults, the voltage at the point of common coupling faces major dip and the wind system gets disconnected from the grid and the hence the system faces difficulty to return back to normal state after the fault is recovered. To avoid this disconnection of wind systems during faults, a PQ based Fault Ride Through controller is proposed in this paper. This controller injects reactive power into the system depending upon the level of the voltage drop during faults thereby improves the transient performance of the system. The proposed controller improves the system parameters of grid connected wind systems in accordance with grid code compliance. The proposed model is implemented and validated in 40 MW grid connected DFIG based wind system in Digsilent software.

 

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