Hierarchical economic dispatch for multi-area power systems |
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Authors: | C. E. Lin C. Y. Chou |
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Affiliation: | Institute of Aeronautics and Astronautics, Cheng Kung University, Tainan, PRC, Taiwan |
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Abstract: | In a multi-area power system, power exchange through tie lines such that the overall cost of the system operation is a minimum is a major economic dispatch problem. In this paper, techniques and methods are presented for solving the economic dispatch problem of radially interconnected power systems. The proposed method, based on a multi-area approach, uses an hierarchical control concept to improve the computation efficiency and accuracy; it has certain advantages over the conventional single-area approach. Theoretical formulations are derived and discussed from a simple power transfer concept. An efficient algorithm is organized. Numerical examples have been tested for a fictitious three-area system. The simulation results strongly support the proposed method with real-time application capability. |
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Keywords: | economic dispatch multi-area system hierarchical control simulation |
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