Electric power medium and long term transaction contract electric quantity decomposition method

Abstract

The invention discloses an electric power medium and long term transaction contract electric quantity decomposition method, comprising the following steps of S1, establishing a contract electric quantity optimization decomposition model according to contract electric quantity and load electric quantity; S2, for the model, providing an engineering practical contract electric quantity decompositionalgorithm, decomposing contract electric quantity, and obtaining a decomposition result which does not consider an electric quantity rolling condition; and S3, performing self-coupling correction andmutual-coupling correction on the decomposition result in the step S2 to obtain a decomposition result considering the electric quantity rolling condition. According to the scheme of the invention, the decomposition result can meet the scheduling requirement, i.e., the electric quantity distribution of each unit in different time periods is balanced as much as possible, the special conditions suchas maintenance and combined heat and power generation are considered, and the correction is carried out when the actual power generation condition deviates from the plan.

Description

technical field [0001] The invention belongs to the field of electric power market, and in particular relates to an electric power decomposition method for medium and long-term electric power trading contracts using an electric power optimization decomposition model and an engineering practical algorithm based on the model. Background technique [0002] The decomposition of power in medium and long-term power trading contracts is one of the main tasks of power trading centers. For example, when the provincial power grid formulates a power generation plan at the beginning of the year, it needs to divide the annual contracted electricity into months based on factors such as the monthly load forecast curve, unit maintenance plan, and combined heat and power generation. At the same time, the monthly power generation plan also needs to be broken down into one day or even a period of time. A high-quality contract power decomposition scheme can greatly reduce the difficulty of sub...

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Problems solved by technology

[0003] In recent years, there have been a large number of studies on defining the index that characterizes the power decomposition balance of the unit, and solving the monthly power generation plan of the unit through the optimization of this index. However, the model established by this method is relatively complicated and the amount of calculation is large. When there is a deviation from the plan, the power constraint in the model cannot be automatically realized, and it becomes an infeasible problem mathematically

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