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In this paper, an Improved Oniscus Granulatus Algorithm (IOSA) is proposed to solve optimal reactive power problem. The behaviour of Oniscus Granulatus has been imitated to formulate the proposed algorithm. Exploration & Exploitation has been amplified in proposed Improved Oniscus Granulatus Algorithm (IOSA). IOSA has been tested on standard IEEE 30 bus test system and simulation results show clearly the good performance of the proposed algorithm in reducing the real power loss and voltage variables are within the limits.
optimal reactive power, Oniscus Granulatus Algorithm, transmission loss
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