DocumentCode :
816541
Title :
Control of a ULTC Considering the Dispatch Schedule of Capacitors in a Distribution System
Author :
Park, Jong-Young ; Nam, Soon-Ryul ; Park, Jong-Keun
Author_Institution :
Sch. of Electr. Eng., Seoul Nat. Univ.
Volume :
22
Issue :
2
fYear :
2007
fDate :
5/1/2007 12:00:00 AM
Firstpage :
755
Lastpage :
761
Abstract :
This paper proposes a coordinated control method for an under-load tap changer (ULTC) with switching capacitors in distribution systems to reduce the operation numbers of both devices. The proposed method consists of two stages. In the first stage, the dispatch schedule of capacitors is determined using a genetic algorithm with forecasted loads to reduce the power loss and to improve the voltage profile during a day. In the second stage, each capacitor operates according to this dispatch schedule and the ULTC is controlled in real time with the modified reference voltages considering the dispatch schedule of the capacitors. Simulation results show that the proposed method performs better than a conventional control method
Keywords :
capacitor switching; genetic algorithms; load dispatching; load forecasting; losses; on load tap changers; power distribution control; ULTC; coordinated control method; dispatch schedule; distribution system; genetic algorithm; power loss reduction; switching capacitors; under-load tap changer; Capacitors; Control systems; Genetic algorithms; Load forecasting; Optimal control; Optimal scheduling; Power system control; Power systems; Reactive power; Voltage control; Capacitor; coordinated voltage control; genetic algorithm; modified reference voltage; under-load tap changer;
fLanguage :
English
Journal_Title :
Power Systems, IEEE Transactions on
Publisher :
ieee
ISSN :
0885-8950
Type :
jour
DOI :
10.1109/TPWRS.2007.895168
Filename :
4162612
Link To Document :
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