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.
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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|
|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|
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