A day-ahead power generation plan preparation method and device for bilateral transactions

Abstract

The present invention relates to a method and device for preparing a day-ahead power generation plan for bilateral transactions. The method includes: constructing a day-ahead power generation plan objective function; using the day-ahead power generation plan objective function to configure the planned power output and / or transaction power output of each unit; Based on the planned electric output and / or transactional electric output of the unit, the power generation plan is prepared; the method and device provided by the present invention can be based on the start-up and stop plan of the unit, with the minimum deviation of the total cost of the system and the amount of electricity of different components being Objectives, determine a set of optimal unit output plans to meet system load and backup requirements, and at the same time meet the constraints of unit output upper limit / lower limit, slope rate / slide rate, transmission capacity of transmission equipment, etc., so as to ensure safe and economical operation of the power grid and different components Coordination and unification of power execution.

Description

technical field [0001] The invention relates to the field of power systems, in particular to a method and device for preparing a day-ahead power generation plan for bilateral transactions. Background technique [0002] At present, dispatching agencies at all levels carry out power generation dispatching work based on the "three public" dispatching principles aiming at the balanced completion of government plans. Although some areas have launched direct purchases of electricity for large users, the total amount of direct purchases of electricity is relatively small. The achievement of the goal has little effect. The "three public" dispatching and control goals are clear and single, with strong operability and guidance, and are the yardstick for the actual work of dispatching agencies at all levels. [0003] The liberalization of bilateral transactions and the expansion of transaction scale have posed serious challenges to the current scheduling transaction mechanism and opti...

AI Technical Summary

Problems solved by technology

[0008] With the gradual increase in the proportion of bilateral traded electricity, the number of traded varieties has gradually increased, the frequency of transactions has continued to increase, and the scope of transactions has continued to expand. The market-oriented characteristics of power supply have gradually emerged. Due to the incomplete market structure in the initial stage of market-oriented construction, there is a lack of market-oriented power balance. Mechanism, the existing planning and scheduling method with annual balance and rolling adjustment as the core has been difficult to meet the requirements of marketization

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