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Relative electrical distance concept for evaluation of network reactive power and loss contributions in a deregulated system

Thukaram, D and Vyjayanthi, C (2009) Relative electrical distance concept for evaluation of network reactive power and loss contributions in a deregulated system. In: IET Generation, Transmission & Distribution, 3 (11). pp. 1000-1019.

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Official URL: http://dx.doi.org/10.1049/iet-gtd.2009.0154

Abstract

With the liberalisation of electricity market it has become very important to determine the participants making use of the transmission network.Transmission line usage computation requires information of generator to load contributions and the path used by various generators to meet loads and losses. In this study relative electrical distance (RED) concept is used to compute reactive power contributions from various sources like generators, switchable volt-amperes reactive(VAR) sources and line charging susceptances that are scattered throughout the network, to meet the system demands. The transmission line charge susceptances contribution to the system reactive flows and its aid extended in reducing the reactive generation at the generator buses are discussed in this paper. Reactive power transmission cost evaluation is carried out in this study. The proposed approach is also compared with other approaches viz.,proportional sharing and modified Y-bus.Detailed case studies with base case and optimised results are carried out on a sample 8-bus system. IEEE 39-bus system and a practical 72-bus system, an equivalent of Indian Southern grid are also considered for illustration and results are discussed.

Item Type: Journal Article
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Additional Information: copyright of this article belongs to The Institution of Engineering and Technology.
Department/Centre: Division of Electrical Sciences > Electrical Engineering
Date Deposited: 11 Jan 2010 06:12
Last Modified: 15 May 2014 05:36
URI: http://eprints.iisc.ernet.in/id/eprint/25243

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