Fuzzy coordination of multi-objectives reflecting the operator's intention for dynamic generation rescheduling

T. Maekawa, K. Yasuda, R. Yokoyama, H. Ohtsuki, Y. Mizukami

    研究成果: Article

    2 引用 (Scopus)

    抜粋

    This paper proposes a novel and efficient algorithm to obtain the optimal generation dispatch reflecting the operator's intention in power system rescheduling by solving a multi-objective optimization problem. In deciding the optimal system operation, various objectives, such as economy, quality and transmission security, should be attained simultaneously. However, these objectives are contradictory to each other and are in trade-off relations, thus making it difficult to handle this class of problems by conventional approaches. In the proposed algorithm, the optimal generation dispatch problem is formulated as a multi-objective optimization problem. Fuzzy coordination technique based on fuzzy set theory is used to obtain an optimal solution. Evaluation indices composed of fuel cost, transmission line overload and AFC regulation capacity margin are measured by the membership functions, and multi-objective optimization is solved by maximizing the composite performance index, namely, the fuzzy decision-making function. The proposed algorithm has made it possible to treat optimal dispatch problems with multiple objectives and to grasp trade-off relations between selected indices. The effect of uncertain factors pertaining to power systems can also be taken into account. The choice of membership function parameters, reflecting the operator's preference of one of the objectives, influences the overall performance of the optimization procedure. Such an approach allows system operators to decide on different preferences according to system operating conditions, thus resulting in a more flexible operation. The validity and effectiveness of the proposed approach are verified through numerical examples on the 10 node, 5 generator system.

    元の言語English
    ページ(範囲)314-320
    ページ数7
    ジャーナルInternational Journal of Electrical Power and Energy Systems
    14
    発行部数5
    DOI
    出版物ステータスPublished - 1992

      フィンガープリント

    ASJC Scopus subject areas

    • Energy Engineering and Power Technology
    • Electrical and Electronic Engineering

    これを引用