선형 근사 평활 발전 비용함수를 이용한 경제급전 문제의 최적화

Abstract

Abstract This paper proposes a simple linear function approximation method to solve an economic load dispatch problem with complex non-smooth generating cost function. This algorithm approximates a non-smooth power cost function to a linear approximate function and subsequently shuts down a generator with the highest operating cost and reduces the power of generator with more generating cost in order to balance the generating power and demands. When applied to the most prevalent benchmark economic load dispatch cases, the proposed algorithm is found to dramatically reduce the power cost than does heuristic algorithm. Moreover, it has successfully obtained results similar to those obtained through a quadratic approximate function method. Key Words : Economic load dispatch, Optimization, Shutdown, Smooth and non-smooth function, Function approximation * 정회원, 강릉원주대학교 과학기술대학 멀티미디어공학과접수일자 : 2013년 2월 11일, 수정완료 : 2014년 5월 3일게재확정일자 : 2014년 6월 13일Received: 11 February, 2014 / Revised: 3 May, 2014 /Accepted: 13 June, 2013