Protection of Lines Connected to Induction Generator-Based Wind Farms During Balanced Faults

         This project is design based on the paper "Distance Protection of Lines Connected to Induction Generator-Based Wind Farms During Balanced Faults".Wind farms (WFs) are increasingly integrated with high-voltage (HV) grids, for which distance relaying is normally the protection of choice. This project simulation shows defects of distance protection for the lines connected to induction generator (IG)-based WFs during balanced faults. It is shown that for the squirrel cage IG (SCIG) WFs, distance protection becomes insecure, while for the doubly fed IG (DFIG) WFs, the relay performance is utterly unreliable, due to operating scenarios that are unique to such WFs and are unfamiliar to the existing relaying practices. The detected failures can easily result in unnecessary WF tripping, thus jeopardizing the objectives pursued by the new grid codes that oblige WFs to remain connected to the grid during disturbances. Moreover, a novel modified permissive overreach transfer trip (POTT) scheme along with a fault current classification technique is proposed to address these problems for both types of IG-based WFs, and the accurate non-delayed protection of a distance relay over the entire line length is restored. A comprehensive performance evaluation using Matlab simulation which validates the efficacy of the proposed solution for all operating conditions.

Reference Paper-1: Distance Protection of Lines Connected to Induction Generator-Based Wind Farms During Balanced Faults
Author Name: Ali Hooshyar, Maher Abdelkhalek Azzouz,and Ehab F. El-Saadany
Source: IEEE TRANSACTIONS ON SUSTAINABLE ENERGY
Year:2014
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SIMULATION VIDEO DEMO-DFIG AND SCIG                                                                                                                       


SIMULATION VIDEO DEMO-DFIG                                                                                                                        

        

 SIMULATION VIDEO DEMO-SCIG                                                                                                                       

        


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