Calculation method for automatic adjustment of power grid section power flow

Abstract

The invention discloses an automatic adjustment and calculation method for the section tidal current of a power grid. The method comprises the steps of importing tidal raw parameter data to form an admittance matrix; determining a section circuit and calculating the sensitivity of the active output of each generator in the section circuit on the end-face tidal current of the section circuit, and ranking generators in the section circuit according to the sensitivity and the geographic information index of the section circuit; deeming the active power output and the voltage amplitude value of each generator as state variables, and generating a card; randomly generating the initial values of the state variables in the card, and generating a plurality of cards to form a card set; calculating the evaluation function values of all cards in the card set; when the evaluation function value of one card is smaller than a given threshold, stopping the iteration process. According to the automatic adjustment and calculation method for the section tidal current of the power grid, the solving speed is improved, and a plurality of feasible solutions are obtained. Therefore, the method provides more options for the system scheduling operation.

Description

technical field [0001] The present application relates to the field of power system simulation calculation analysis, in particular to an automatic adjustment calculation method for power grid section power flow. Background technique [0002] The cross-section in the power grid refers to the contact line family formed by connecting multiple branches between two regions. Power exchange relationship between regions. Power grid dispatching and planning departments usually use power system analysis software when calculating the maximum transmission capacity of grid sections. By continuously adjusting the operation mode and simultaneously performing large-scale expected fault stability checks, the stability of the system is manually judged according to the time-domain simulation curve. [0003] From the current point of view, although some theoretical research has been carried out on the intelligent solution technology for the limit of complex grid sections, there are still many ...

AI Technical Summary

Problems solved by technology

[0004] With the continuous expansion of power grid scale and increasingly complex power grid (such as AC-DC hybrid connection, DC asynchronous networking, etc.), the analysis of power grid is becoming more and more complicated. Less consideration of factors, lack of practicality

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