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Fuzzy dynamic programming: an application to unit commitment

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2 Author(s)
Su, Chung-Ching ; Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan ; Hsu, Yuan-Yih

A new approach using fuzzy dynamic programming is proposed for the unit commitment of a power system. A characteristic feature of the approach is that the errors in the forecast hourly loads can be taken into account by using fuzzy set notations, making the approach superior to the conventional dynamic programming method which assumes that the hourly loads are exactly known and there exist no errors in the forecast loads. To reach an optimal commitment strategy under the fuzzy environment, a fuzzy dynamic programming model in which the hourly loads, the cost, and system security are all expressed in fuzzy set notations is developed. The effectiveness of the approach is demonstrated by the unit commitment of the Taiwan power system, which contains six nuclear units, 48 thermal units, and 44 hydro units

Published in:

Power Systems, IEEE Transactions on  (Volume:6 ,  Issue: 3 )

Date of Publication:

Aug 1991

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