A Day-Ahead Scheduling Method of Power Grid Based on Step Characteristics of Air Conditioning Load Participation

Abstract

The invention discloses a day-ahead dispatching method of a power grid based on the participation of air-conditioning loads based on step characteristics, and belongs to the field of power system operation and dispatching. The present invention aims at the technical problems that the temperature of large buildings cannot be accurately controlled and the power consumption cannot be accurately controlled when the central air-conditioning system of large buildings in the prior art adopts wheel-stop control, which further leads to inaccurate scheduling of power generation by the power grid. Combining feature extraction and prediction technology, extracting historical air-conditioning loads, establishing heat load models of large buildings and deriving total heat load models, calculating the dispatchable capacity of central air-conditioning systems in large buildings, participating in bidding and completing power grid dispatching orders according to dispatching capacity. For the power grid side, the load realizes peak shaving and valley filling, improving the safety and stability factor of the power grid. For the user side, saving electricity and receiving dispatch compensation from the grid is the development trend of smart grid participating in dispatch. That is, the coordinated control of users and the grid.

Description

Technical field[0001]The present invention relates to the field of operation and scheduling of power systems, and more particularly to a step-based scheduling method based on a step-based air conditioning load.Background technique[0002]The annual investment of more than 100 billion yuan in the construction of power station meets the peak requirements of the electric grid in summer. However, the cost of utilization of electric plants is short, the unit cost is high, and the problem of serious pollution is continuously deteriorated, and various loads have increased, especially the air-conditioning load rapidly grow in summer peak load. The prior art is often used by the grid reception: my country's public building large-scale air-conditioning load is currently very regulatory potential. The power grid load spike is short, only dozens of hours, the economic decline in the episode of traditional units: air conditioning has become high, the peak load is the main cause, more than 1 / 3 of d...

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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