Abstract

Voltage stability is one of the important issues in the existing power system network and in this paper presents the reactive power load management for voltage stability control in multi-area power system. Evolutionary Programming (EP) as optimization technique was employed in order to manage the load with the aim to control the voltage stability. Pre-developed Fast Voltage Stability Index (FVSI) was utilized as an instrument for voltage security assessment. Single-load and multi-load increment were performed on several loading conditions to obtain maximum reactive power loading with FVSI range from 0 to 0.95 p.u. The proposed EP optimization technique managed to outperform the traditional voltage stability assessment (VSA) approach in terms of achieving accurate results.

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