Circuit theory approach for voltage stability assessment of reconfigured power network

Subramanian Chitra; Narayanasamy Devarajan

Circuit theory approach for voltage stability assessment of reconfigured power network

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Author(s): Subramanian Chitra ¹ and Narayanasamy Devarajan ¹
- Affiliations: 1: Department of Electrical Engineering, Government College of Technology, Coimbatore-641013, India
Source: Volume 8, Issue 6, November 2014, p. 435 – 441
DOI: 10.1049/iet-cds.2013.0325 , Print ISSN 1751-858X, Online ISSN 1751-8598

Received 21/07/2013, Accepted 09/02/2014, Revised 10/01/2014, Published 10/04/2014

This study presents a circuit theory approach for voltage stability assessment in an interconnected power network. Here, an interconnected IEEE 14-bus network has been reconfigured into 12-, 10- and 8-bus networks using graph theory. The line index indicator has been used for voltage stability assessment under normal and faulted conditions for the original (IEEE 14-bus) and the reconfigured (12-, 10- and 8-bus) networks. Genetic algorithm tool in MATLAB has been used to determine the optimal operating condition with best voltage stability for the original and the reconfigured networks. The results have shown that the voltage stability assessment under normal and faulted conditions can be effectively determined for the reconfigured networks compared with the original network.

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