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Mitigation of Sag Using DVR with Neural Network Controller

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Author(s): B.Indhuja1 , Ms. M.Bhavani

Journal: International Journal of Engineering Trends and Technology
ISSN 2231-5381

Volume: 4;
Issue: 6;
Start page: 2574;
Date: 2013;
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Keywords: DVR | voltage sag | Neural Network controller

ABSTRACT
The Dynamic Voltage Restorer is the most common device used in the distribution systems to protect the consumers against sudden changes in voltage magnitude. In this paper the design of DVR by using Neural Network controller is proposed in order to mitigate the voltage sags to improve the transient response and eliminate the study state error. The proposed method is applied with some disturbances in the load side. The capability of the proposed DVR has been tested to limit the fault current. Here the DVR access virtual impedance with the aim of protecting PCC voltage during fault without any problem in real power injection to the DVR. Simulation results show the capability of the DVR to control the emergency conditions of the distribution system
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