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General Model and Algorithm for Contract Energy Decomposition

LI Canbing,HU Yajie,ZHAO Hongjun,LI Xiaohui(Zhengzhou University,Zhengzhou 450001,China)  
The contract power energy should be decomposed to each period of time in power pool.For example,the contract energy that a power plant won the bidding in year-contract market should be decomposed to each month,and month-contract energy should be decomposed to each day,etc.Decomposition of contract energy is a universal problem that should be resolved by the trading center.The decomposition of contract energy is reduced to a quadratic programming problem.The concept of rates of progress is proposed with such special problems as the maintenance,the limiting of hydraulic power and the thermal power generation taken into account and the contract energy could be decomposed step by step,making rates of progress of all power plants balance in all time slices.The model is universally adaptable.The algorithm calculates fast and the result is optimal and feasible.Finally,a case with 24 buses is studied based on IEEE RTS-96 system.It's proved that the model and algorithm are effective through case study.
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