Calibration method for network-wide optimal control parameters of automatic voltage control system

Abstract

The invention discloses a method for an AVC (Automatic Voltage Control) system to verify power network global optimal control parameters. the optimal control parameter group and the optimal reactive power flow distribution are verified by being based on EMS (Energy Management System) real time data and the power network state estimation, and based on a uniform typical, substituting load daily historical data, and comparing the pivot node voltage regulation speed rates, the voltage control quality rates and the power network loss values respectively. By adopting the method disclosed by the invention, the problem in the prior art that the AVC substation parameters can not be verified to be optimum in the power network is solved, thus the method provides conditions for achieving the final goal of qualified node voltage in the power network and minimized network loss; and the method also can be used for verifying the optimal reactive power flow distribution, and provides aided decision evidences for investing in the power network construction.

Description

technical field [0001] This method is suitable for power system voltage control technology, especially for verifying the optimal control parameters of the Automatic Voltage Control (AVC) system. The bus voltage control effect of the central point under the parameter group is compared with the network loss of the whole network to verify the optimal control parameter scheme. Background technique [0002] AVC is automatic voltage control (automatic voltage control), which is a system for global optimization and coordinated control of the voltage and reactive power of the grid. According to the operation data of the entire power grid, the AVC master station takes the bus voltage qualification of the central point as the constraint condition, and takes the minimum network loss as the control target, optimizes and calculates the power grid model, and sends the results to each AVC sub-station, and each AVC sub-station The controlled equipment adjusts the reactive power and voltage...

AI Technical Summary

Problems solved by technology

[0003] The current optimal parameter verification of the AVC system can only verify that the setting parameters of the AVC substation are the optimal parameters of the substation or power plant where it is located, and cannot verify whether the entire network is optimal

For the whole network, because the load changes at all times, the grid structure is also constantly changing. The manufacturers and models of AVC substations used by different power plants are different, which makes it impossible to use a unified grid structure, uniform load parameters and unified power grid in the actual power grid. The AVC model to verify the optimal control parameters

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