VOLTAGE STABILITY ANALYSIS OF THE NIGERIAN POWER SYSTEM USING ANNEALING OPTIMIZATION TECHNIQUE

Authors

  • MJ Mbunwe DEPARTMENT OF ELECTRICAL ENGINEERING, UNIVERSITY OF NIGERIA, NSUKKA, ENUGU STATE, NIGERIA
  • AO Ekwue JACOBS ENGINEERING INC/ BRUNEL UNIVERSITY LONDON, UNITED KINGDOM

Keywords:

Special protection systems, voltage stability analysis, voltage stability limit, voltage collapse mechanism, system security

Abstract

The paper addresses the means of overcoming the challenge posed by voltage collapse to the stability of the Nigerian electric power system. The technique applied is based on time identification algorithm elaborating, at a given grid bus, the local phasor measurements at fast sampling rate. Elements such as adjustable shunt compensation devices, generator reactive generation, transformer tap settings are optimally adjusted at each operating point to reach the objective of minimizing the voltage stability index at each individual bus as well as minimizing the global voltage stability indicator. The control elements setting were optimized and the maximum possible MVA voltage stable loading has been achieved and a best voltage profile was obtained. Results of tests conducted on a 6-bus IEEE system and a typical 28-bus Nigerian power distribution network are presented and discussed.

 

http://dx.doi.org/10.4314/njt.v39i2.27

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Published

2020-04-03

Issue

Vol. 39 No. 2 (2020): NIGERIAN JOURNAL OF TECHNOLOGY, VOL. 39, NO. 2, APRIL 2020

Section

Computer, Telecommunications, Software, Electrical & Electronics Engineering

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How to Cite

VOLTAGE STABILITY ANALYSIS OF THE NIGERIAN POWER SYSTEM USING ANNEALING OPTIMIZATION TECHNIQUE. (2020). Nigerian Journal of Technology, 39(2), 562-571. https://nijotech.com/index.php/nijotech/article/view/2309