RELIABILITY AND SECURITY CONSTRAINED UNIT COMMITMENT PROBLEM FOR HYBRID POWER SYSTEM USING BI-LEVEL OPTIMIZATION TECHNIQUE

Abstract

In this paper, hybrid nodal ant colony optimization (NACO) and real coded clustered gravitational search algorithm
(CGSA) has been proposed for solving wind integrated thermal unit commitment problem. The reliability of the system will
affected by high wind penetration. Hence, NACO-CGSA hybrid approach has been proposed for solving the reliability based
security-constrained unit commitment (RSCUC) problem. NACO solves reliability constrained unit commitment (RCUC)
problem and real coded CGSA solves security constrained economic dispatch (SCED) problem. The proposed method is
implemented and tested using MATLAB programming. The feasibility and effectiveness of the proposed method is verified by
IEEE Six bus system and the results are compared with those of other methods reported in literatures.