Contract electric quantity optimization decomposition method considering carbon emission influence

The invention discloses a contract electric quantity optimization decomposition method considering carbon emission influence. The contract electric quantity optimization decomposition method mainly comprises the following steps: firstly, calculating the carbon emission of a thermal power generating unit according to a coal consumption characteristic curve of the thermal power generating unit to obtain carbon emissions corresponding to different outputs of the unit; based on the thermal power generating unit maintenance plan, determining an allowable progress coefficient difference value when the unit executes the contract plan; on the basis, taking the minimum total electricity purchasing cost as a target, considering a unit output constraint, unit maintenance, a carbon emission constraintand a combined heat and power generation constraint, and establishing an optimization model of contract electric quantity decomposition; and finally, iteratively solving the optimization model to obtain a rolling correction