A SOLUTION TO UNIT COMMITMENT PROBLEM IN POWER SYSTEM
Author     :   G.JAYALASHMI, S.PUNITHA, jayalashmi_1990@yahoo.com, punitha_90@gmail.com Dept         :  EEE College     :  PANIMALAR ENGINEERING COLLEGE,CHENNAI. File type   :  DOC Publish     :
ABSTRACT:          Ant colony search algorithm (ACSA) is proposed to solve thermal unit commitment problem. ACSA is a new cooperative agent’s approach, which is inspired by the Observation of the behaviors of real ant colonies on the topic of ant trial formation and foraging methods. The merits of ACSA are parallel search and optimization capabilities .The problem is decomposed in two sub problems. The unit commitment sub-problem is solved by the ant colony search algorithm method and the economic dispatch sub-problem is solved by the lambda-iteration method.  The unit commitment problem is formulated as the minimization of the performance index, which is the sum of objectives (fuel cost, start-up cost) and some constraints (power balance, generation limits, spinning reserve, minimum up time and minimum down time).This proposed approach is tested on the 10 unit system