A mid-to-long-term power purchase decision-making method with multi-objective and multi-constraint

Abstract

The invention provides a multi-target multi-constrained medium and long term power purchase decision-making method, which comprises the steps of establishing a target function, establishing a constraint model; carrying out optimization on a single target, and carrying out joint optimization on multiple targets. The decision-making method provided by the invention carries out optimization target modeling on various requirements comprising minimum power generation cost of a set, minimum power purchase cost, minimum pollution discharge cost and the like in power purchase, carries out optimization constraint modeling on various indicator requirements comprising energy burning policies, coal burning stock, water incoming conditions, transaction electricity price, transaction scale, energy conservation and emission reduction, coal consumption and the like in practical production operations and transaction organizations, and carries out multi-target multi-constrained joint optimization according to an optimum value degeneration method. The multi-target multi-constrained medium and long term power purchase decision-making method is a decision-making auxiliary tool for purchase of a grid company, and provides effective technical support for the grid company to save the cost and increase earnings.

Description

technical field [0001] The invention belongs to the field of electric power automation, and in particular relates to a multi-objective and multi-constraint medium- and long-term power purchase decision-making method. Background technique [0002] The preparation of medium and long-term power purchase plan is one of the important tasks of grid transaction operation and grid power purchase management. The power grid company needs to purchase electricity from power generation companies or other power grids every month to meet the electricity demand of the province. In addition, if the province has excess electricity, it also considers selling it to other provinces that lack electricity. Power purchase is a multi-party balance, which needs to consider various factors such as energy policy, coal inventory, water supply, transaction price, transaction scale, pollution emissions, coal consumption and other factors. It is difficult to choose between multiple optimization objectives...

AI Technical Summary

Problems solved by technology

At present, the power purchase business of provincial companies is mostly manual calculation and qualitative analysis, and there is still a lack of effective methods for unified consideration of many factors in the power purchase decision. At present, there is no complete and refined optimization plan

Images