Determining voltage unstable area in power systems using Kohonen neural network

Muhammad Nizam, Azah Mohamed, Aini Hussain

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper presents a new method to determine voltage unstable area in power systems using Kohonen neural network (KNN) from dynamic voltage stability viewpoint Using KNN, the buses in a power system are classified as critical and non critical buses based on the power transfer stability index values. The critical buses are then clustered to form the voltage unstable area in a power system. The proposed method was implemented on the IEEE 39-bus test system in which for dynamic simulation of voltage collapse, two contingencies such as load increase and line outage were considered. The dynamic voltage collapse simulation results were used for generating training and testing data sets of the KNN. The results on the determination of voltage unstable area by using the KNN were also compared with the learning vector quantization technique. The results showed that the proposed method using KNN is more accurate than the linear vector quantization technique in forming the voltage unstable area in power systems.

Original languageEnglish
Title of host publication8th International Power Engineering Conference, IPEC 2007
Pages59-63
Number of pages5
Publication statusPublished - 2007
Event8th International Power Engineering Conference, IPEC 2007 - Singapore
Duration: 3 Dec 20076 Dec 2007

Other

Other8th International Power Engineering Conference, IPEC 2007
CitySingapore
Period3/12/076/12/07

Fingerprint

Neural networks
Electric potential
Vector quantization
Outages
Voltage control
Computer simulation
Testing

Keywords

  • Dynamic voltage collapse
  • Kohonen neural network
  • Voltage unstable area

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

Cite this

Nizam, M., Mohamed, A., & Hussain, A. (2007). Determining voltage unstable area in power systems using Kohonen neural network. In 8th International Power Engineering Conference, IPEC 2007 (pp. 59-63). [4510001]

Determining voltage unstable area in power systems using Kohonen neural network. / Nizam, Muhammad; Mohamed, Azah; Hussain, Aini.

8th International Power Engineering Conference, IPEC 2007. 2007. p. 59-63 4510001.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Nizam, M, Mohamed, A & Hussain, A 2007, Determining voltage unstable area in power systems using Kohonen neural network. in 8th International Power Engineering Conference, IPEC 2007., 4510001, pp. 59-63, 8th International Power Engineering Conference, IPEC 2007, Singapore, 3/12/07.
Nizam M, Mohamed A, Hussain A. Determining voltage unstable area in power systems using Kohonen neural network. In 8th International Power Engineering Conference, IPEC 2007. 2007. p. 59-63. 4510001
Nizam, Muhammad ; Mohamed, Azah ; Hussain, Aini. / Determining voltage unstable area in power systems using Kohonen neural network. 8th International Power Engineering Conference, IPEC 2007. 2007. pp. 59-63
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