Step characteristics-based air-conditioning load-participated power grid day-ahead scheduling method

Abstract

The invention discloses a step characteristics-based air-conditioning load-participated power grid day-ahead scheduling method and belongs to the field of the running and the dispatching of a power system. According to the invention, in the prior art, when the central air-conditioning system of a large building adopts the wheel stop control mode, the temperature of the large building cannot be accurately controlled. Meanwhile, the power consumption amount of the large building cannot be accurate, so that the day-ahead dispatching power generation amount of the power grid cannot be accurate. Inorder to solve the above problems in the prior art, the invention provides the above day-ahead scheduling method. The characteristic extraction technology of an air-conditioning load is combined withthe prediction technology, and a historical air-conditioning load is extracted. After that, a model for each heat load of the large building is established, and then a total heat load model is deduced. Meanwhile, the dispatching capacity of the central air-conditioning system of the large building is calculated. According to the dispatching capacity of the central air-conditioning system of the large building, the participation of the bid inviting is carried out and then a dispatching command of the power grid is completed. The peak-load shifting of the load is realized for the power grid side, and the safety and stability coefficients of the power grid are improved. For the user side, the electric quantity is saved, and the scheduling compensation provided by the power grid is obtained.As a result, the development tendency of the intelligent power grid to participate in dispatching is realized. That means, the coordination control of a user and a power grid is realized.

Description

technical field [0001] The invention relates to the field of power system operation and dispatching, in particular to a day-ahead dispatching method of a power grid based on the participation of air-conditioning loads based on step characteristics. Background technique [0002] Our country invests more than 100 billion yuan every year to build power stations to meet the peak demand of the power grid in summer. However, the annual utilization time of power plants is short, the unit cost is high, serious environmental pollution and other problems continue to worsen, and various loads continue to increase, especially the air-conditioning load increases rapidly during the peak load in summer. The method commonly used in the prior art for the day-ahead scheduling of the power grid: the large-scale air-conditioning load of public buildings in my country currently has a very large potential for regulation and control. The peak load time of the power grid load is short, only dozens...

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the technical problem of inaccurate control of large-scale building temperature and inaccurate power consumption when the central air-conditioning system of a large-scale building in the prior art adopts wheel-stop control, which in turn leads to inaccurate scheduling of power generation by the power grid.

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