A Voltage Control Method based on Constants of Four Terminals Network Modeling of Distribution Networks

- Journal title : Journal of Electrical Engineering and Technology
- Volume 3, Issue 3, 2008, pp.354-362
- Publisher : The Korean Institute of Electrical Engineers
- DOI : 10.5370/JEET.2008.3.3.354

Title & Authors

A Voltage Control Method based on Constants of Four Terminals Network Modeling of Distribution Networks

Yang, Xia; Lim, Il-Hyung; Choi, Myeon-Song; Lee, Seung-Jae; Kim, Tae-Wan;

Yang, Xia; Lim, Il-Hyung; Choi, Myeon-Song; Lee, Seung-Jae; Kim, Tae-Wan;

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.

Keywords

DAS;distribution system;Load flow;Voltage control;

Language

English

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