Journal of Electrical Engineering and Technology

The Korean Institute of Electrical Engineers (대한전기학회)
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A Voltage Control Method based on Constants of Four Terminals Network Modeling of Distribution Networks

  • Yang, Xia (Dept. of Electrical and Electronic Engineering, MyongJi University) ;
  • Lim, Il-Hyung (Dept. of Electrical and Electronic Engineering, MyongJi University) ;
  • Choi, Myeon-Song (Dept. of Electrical and Electronic Engineering, MyongJi University) ;
  • Lee, Seung-Jae (Dept. of Electrical and Electronic Engineering, MyongJi University) ;
  • Kim, Tae-Wan (Dept. of Electrical and Electronic Engineering, MyongJi University)
  • Published : 2008.09.30
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Abstract

In this paper, a new algorithm of optimal voltage control is proposed for the Distribution Automation System (DAS) based on constants of four terminal network modeling. In the proposed method, the voltage profiles along feeders are estimated from the measurement of the current and power factor by a Feeder Remote Terminal Unit (FRTU) installed at each node. Whenever the voltage profile violates the restriction, the voltage control strategy is applied to keep the voltage levels along the feeders within the pre-specified range through the modification and coordination of the transformer under-load tap changers (ULTC), step voltage regulator (SVR), as well as shunt condenser. In the case studies, the estimation and control of the voltages have been testified in a radial distribution system with 11 nodes.

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References

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