Considering Multiple Uncertainties in Stochastic Security-Constrained Unit Commitment Using Point Estimation Method
محل انتشار: بیست و نهمین کنفرانس بین المللی برق
سال انتشار: 1393
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 1,165
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شناسه ملی سند علمی:
PSC29_199
تاریخ نمایه سازی: 6 آذر 1393
چکیده مقاله:
Security-Constrained Unit Commitment (SCUC) is one of the most significant problems in secure and optimal operation of modern electricity markets. New sources of uncertainties such as wind speed volatility and price-sensitive loads impose additional challenges to this large-scale problem. This paper proposes a new Stochastic SCUC using point estimation method to model the power system uncertainties more efficiently. Conventional scenario-based Stochastic SCUC approaches consider the Mont Carlo method; which presents additional computational burdens to this large-scale problem. In this paper we use point estimation instead of scenario generating to detract computational burdens of the problem. The proposed approach is implemented on a six-bus system and on a modified IEEE 118-bus system with 94 uncertain variables. The efficacy of proposed algorithm is confirmed, especially in the last case with notable reduction in computational burden without considerable loss of precision.
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نویسندگان
Mahdi Mehrtash
Department of Power and Control Eng. Shiraz University Shiraz, Iran
Mahdi Raoofat
Department of Power and Control Eng. Shiraz University Shiraz, Iran
Mohammad Mohammadi
Department of Power and Control Eng. Shiraz University Shiraz, Iran
Mohammad Hossein Zakernejad
Department of Power and Control Eng. Shiraz University Shiraz, Iran