Transmission Expansion in Deregulated Competitive Environment Taken into Account Social Welfare and Reliability

カテゴリ: 部門大会

論文No: 41

グループ名: 【B】平成17年電気学会電力・エネルギー部門大会講演論文集

発行日: 2005/08/10

タイトル(英語): Transmission Expansion in Deregulated Competitive Environment Taken into Account Social Welfare and Reliability

著者名: Pathom Attaviriyanupap(東京大学),横山 明彦(東京大学)

著者名(英語): Pathom Attaviriyanupap(University of Tokyo),Akihiko Yokoyama(University of Tokyo)

キーワード: Decision Making|Deregulation|Monte Carlo Simulation|Power System|ReliabilityTransmission Expansion Planning

要約(日本語): In the present paper, the authors propose a new method to determine an optimal transmission expansion plan in the deregulated power system. In the proposed scheme, social welfare and reliability are taken into account. The social welfare is computed from the summation of welfare of all market participants. On the other hand, the reliability is determined from the cost of the loss of load or outage cost of consumers. Uncertainties such as generation, load, participant bidding strategies and facility failures are included in the planning problem. Uncertainties of generation and load are handled by using the analytical method while uncertainties of bidding strategies and facility failures are handled by using the Monte Carlo simulation. In the proposed method, two transmission expansion cases: enhancing capacity of the existing transmission line and investing in the new transmission line are investigated. In both cases, a set of transmission expansion plan candidates are picked up based on social welfare sensitivity and price difference between buses. The most appropriate plan is selected based on three decision making approaches: average value approach, minimax approach and probability criteria approach. Numerical simulation is carried out for the modified IEEJ West 10-machine system.

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