Node active power adjustment method and system considering large-scale power loss

Abstract

The invention provides a node active power adjustment method and system considering large-scale power loss. The method includes the following steps: determining grid computing nodes according to equipment constituting the grid, and constructing a node active power adjustment model based on the grid computing nodes; and when there is power loss, calculating the active power adjustment quantity of each node based on the node active power adjustment model, and assigning the active power adjustment quantity to specific equipment. Through the method and the system, the adjustment resources of DC inverter stations, local dispatching small power supplies and schedulable loads can be all considered quickly, and adjustable resources can be called reasonably and intervened flexibly. The adjustment quantity of the nodes is calculated first, and then assigned to specific grid equipment. The computation scale can be reduced, and the computation speed can be increased.

Description

technical field [0001] The invention belongs to the field of electric power industry, and in particular relates to a node active power adjustment method and system considering large-scale power loss. Background technique [0002] UHV DC transmission plays a vital role in the wide-scale consumption of clean energy, but for large-scale power-intensive transmission with a rated capacity of 8000MW, once the DC faults such as blocking occur, it will bring great damage to the power grid at the receiving end. Power missing shock. In the face of such a large-scale power loss, how to restore the active power balance of the system reasonably and quickly is a problem worthy of further study. The traditional active power adjustment is carried out under the normal operation of the power grid. At this time, the active power deviation is small, and it is only necessary to distribute the active power to the unbalanced amount in the AGC unit. At this time, the DC inverter station, the smal...

AI Technical Summary

Problems solved by technology

In the face of large-scale power loss, the existing AGC-based dynamic ACE function cannot consider grid constraints and call other resources such as DC inverter stations, ground-adjusted small power supplies, and dispatchable loads.

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