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Optimal Unit Commitment Considering Units Ramp-Rate Limits

Han Xueshan; Liu Zuo (Harbin Institute of Technology Harbin 150006,China)  
Considering the ramp-rate limit of unit ,the optimal unit commitment is studied in detail in theis paper. Om thebasis of Lagrangian relaxation method,a coordination solution methodis proposed.Under the balance of relaxedpower the constraints are formulated and a feasible unit commitment is solved by the shortest path method.On thebasis of this,a new method of dynamlcoptirnal dispatch-accumulations variable method was used in order tofind global optimal solution. Therefore,a good coordination is achieved between unit commitment and operation. The effectiveness of the method is proved in the results of test.
【Fund】: 国家自然科学基金
【CateGory Index】: TM310.12
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