The effects of demand response on security-constrained unit commitment

Abstract

This paper aims to study the effect of the hourly Demand Response (DR) on Security-Constrained Unit Commitment (SCUC) problem considering economic and security objectives. The demand side participation can solve some of the electricity market problems. In this paper, the DR is taken into consideration as one of the Demand Side Management (DSM) parts. The DR consists of fixed and responsive loads. The fixed loads can be satisfied under any circumstances, and responsive loads can reduce or shift to other operation hours. A combination of SCUC with DR is a complex and mixed integer non-linear problem. The bender's decomposition is used as an optimization technique for solving this problem. This technique solves the problem by decomposing it into master and sub problems. One of the advantages of this technique is short processing time. The performance and effectiveness of the proposed method are evaluated with respect to 6-, 24-, and 118-bus test systems.