Multi-source coordinated scheduling method for improving adjustment adequacy of power grid

Abstract

The invention belongs to the power system operation and control field and a multi-source coordinated scheduling method for improving the adjustment adequacy of a power grid. The invention aims to fillgaps in coordinated scheduling of a plurality of resources such as large-capacity heat storage, power storage, thermal power depth peak load adjustment, wind curtailment, and nuclear power peak loadadjustment. According to the method of the invention, the thermal power depth peak load adjustment, the large-capacity heat storage, power storage, wind curtailment, and nuclear peak load adjustment are reasonably controlled in a coordinated manner; a thermal storage, wind power, thermal power and nuclear power unified power control set model is proposed; the switching time sequence of various peak load adjustment resources is optimized; multi-level control criteria are established; and an automatic power generation control-based power set model is formed. With the method adopted, the adjustment margin of an entire power grid can be greatly improved, and difficulties in the scheduling various resources can be eliminated. The method has a high application value in actual scheduling operation.

Description

technical field [0001] The invention relates to the field of power system operation and control, in particular to a multi-source coordinated dispatching method for improving the regulation adequacy of a power grid. Background technique [0002] After large-scale wind power is connected to the grid, the problem of grid accommodation becomes the main contradiction. However, the core bottleneck of accommodation technology lies in the insufficient power regulation adequacy of the system, which leads to difficulties in peak regulation of the grid. In order to consume a greater proportion of new energy, the generator set has already operated within the limit margin interval during the load peak and valley periods, resulting in a serious shortage of the overall regulation capacity of the system, which is not enough to defend against the security and stability threats brought by large disturbances. Therefore, improving the adequacy of grid regulation has become the primary problem t...

AI Technical Summary

Problems solved by technology

However, with the goal of consuming clean energy, considering five large-capacity heat storage, power storage, thermal power deep peak regulation, wind curtailment, and nuclear power peak regulation resources at the same time, a multi-source coordination framework for rationally arranging heat storage, fire, wind and core, Optimizing the coordinated operation mode between each other is still in a technical gap

Aiming at the coordinated scheduling of the input timing, capacity value, and optimal operation mode of various resources, the present invention proposes a multi-source coordinated scheduling method that improves the adequacy of power grid regulation, and solves the problem of coordinated scheduling of large-capacity thermal storage, fire, wind, and nuclear species resources

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