Methodology for alleviation of voltage excursions in large power systems

Singh, SP and Raju, GS and Thukaram, D and Singh, GD (1996) Methodology for alleviation of voltage excursions in large power systems. In: International Journal of Electrical Power & Energy Systems, 18 (3). pp. 167-173.

PDF Methodology.pdf - Published Version Restricted to Registered users only Download (547kB) | Request a copy

Abstract

This paper presents a method for minimizing the sum of the square of voltage deviations by a least-square minimization technique, and thus improving the voltage profile in a given system by adjusting control variables, such as tap position of transformers, reactive power injection of VAR sources and generator excitations. The control variables and dependent variables are related by a matrix J whose elements are computed as the sensitivity matrix. Linear programming is used to calculate voltage increments that minimize transmission losses. The active and reactive power optimization sub-problems are solved separately taking advantage of the loose coupling between the two problems. The proposed algorithm is applied to IEEE 14-and 30-bus systems and numerical results are presented. The method is computationally fast and promises to be suitable for implementation in real-time dispatch centres.

Item Type:	Journal Article
Publication:	International Journal of Electrical Power & Energy Systems
Publisher:	Elsevier Science
Additional Information:	Copyright of this article belongs to Elsevier Science.
Keywords:	scheduling;on-line control;mathematical programming;optimal power flow
Department/Centre:	Division of Electrical Sciences > Electrical Engineering
Date Deposited:	04 Apr 2012 10:17
Last Modified:	04 Apr 2012 10:17
URI:	http://eprints.iisc.ac.in/id/eprint/44220

Actions (login required)

View Item