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The New Voltage Event Detection Method and Control System Design for DVR Applied to 22.9kV Distribution System  

Kim H.J. (LS산전 중앙연구소)
Chung Y.H. (LS산전 중앙연구소)
Kwon G.H. (LS산전 중앙연구소)
Park T.B. (LS산전 중앙연구소)
Moon J.I. (LS산전 중앙연구소)
Jeon Y.S. (한전전력연구원)
Publication Information
The Transactions of the Korean Institute of Electrical Engineers A / v.55, no.1, 2006 , pp. 7-12 More about this Journal
Abstract
This paper proposes the new voltage event detection method using the weight factor of neural network and describes control system design for the DVR(Dynamic Voltage Restorer) consisted of a rectifier and series inverter applied to 22.9kV distribution system. As this method can express the fault level of each phase, we expect the proposed method can make up for disadvantage of synchronous detection method. Also, in this paper, the control system was designed using double deadbeat controller, As it has an inner current control loop and an outer voltage control loop, we can easily limit the current level during the transient intervals by using the current control loop. Simulation and experiment are performed to prove the analysis of the voltage event detection method and double deadbeat controller.
Keywords
Voltage Sag/Swell; Neural Network; Double Deadbeat Control; DVR;
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