Trend Power Calculation Method Based on Online State Estimation and Real-time Dispatch Planning

Abstract

The invention provides a trend load flow calculating method based on online status estimation and real-time scheduling plans. The method comprises the following steps of determining future trend operating mode data of a power grid; performing rationality identification and automatic adjustment on real-time scheduling plans; establishing a multi-section active power control model to perform automatic fine-tuning generation active power control; performing reactive power voltage local control, and distributing reactive power unbalance of hub nodes; performing load flow calculation to generate load flow calculation data used for power grid future trend dynamic safety assessment. The trend load flow calculating method based on online status estimation and real-time scheduling plans solves the problem that traditional online dynamic safety assessment algorithms cannot effectively analysis future power grid short safety and stability within a short time, and by analyzing further power grid safety change trend in advance, assists scheduling personnel to arrange and adjust current operating manners.

Description

technical field [0001] The invention belongs to the field of online simulation analysis of power grids, and in particular relates to a trend calculation method based on online state estimation and real-time scheduling plan. Background technique [0002] With the gradual formation of my country's UHV AC-DC hybrid large power grid, the safety and stability characteristics and mechanism of the power system are becoming more and more complex, and the difficulty of power grid operation control is increasing, which puts forward new requirements for the accuracy and advancement of online simulation analysis. The basis for advanced grid online security analysis is to form trend power flow data that characterizes the future grid operation mode. Important factors that will shape how the grid of the future will operate include: [0003] 1) Real-time planning, according to changes in load changes, equipment shutdown and resumption, power trading adjustments, temporary dispatch operatio...

AI Technical Summary

Problems solved by technology

[0007] In order to overcome the above-mentioned deficiencies in the prior art, the present invention provides a trend calculation method based on online state estimation and real-time dispatching plan, which is used to solve the problem that the traditional online dynamic security assessment algorithm cannot effectively analyze the security and stability of the future power grid in a short period of time problems, conduct pre-analysis of future power grid security trends, and assist dispatchers in arranging and adjusting the current operation mode

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