Regional and county integrated automatic voltage control system

Abstract

The invention relates to a regional and county integrated automatic voltage control system called as a regional and county AVC system for short. The system comprises a regional primary grid, wherein SCADA (supervisory control and data acquisition) servers, a PAS (personal access system) server and a monitoring and maintenance workstation are connected to the regional primary grid; SCADA servers, a PAS server and a monitoring and maintenance workstation are connected to a county enterprise local area network; the regional primary grid is connected with the county enterprise local area network; the system is used for performing data acquisition and process, dynamic partitioning and global voltage reactive power control by utilizing a static model established by the connecting relationships. According to the system, links for coordinated management and repeated management over reactive voltage during regional and county dispatching are reduced, the voltage quality of the whole power grid system is improved, the redundant reactive power flow of a power grid is reduced, the grid loss of the system is reduced, and the labor intensity and the monitoring pressure of dispatching monitoring personnel are remarkably reduced.

Description

technical field [0001] The invention belongs to the technical field of electric power system scheduling automation, and in particular relates to an integrated automatic voltage control system for districts and counties, hereinafter referred to as the AVC system for districts and counties. Background technique [0002] With the rapid development of my country's power system, the scale of the power grid continues to expand, and the structure and operation of the power grid become increasingly complex, which brings great challenges to the operation monitoring and security analysis of the power grid. In order to solve the voltage quality problem of the power grid, in the past, the local, regional, and manual intervention control methods of substations were generally adopted, lacking coordination among each other, which will inevitably affect the timeliness and accuracy of control, and it is difficult to achieve good optimization results. With the development of dispatching autom...

AI Technical Summary

Problems solved by technology

However, for a long time, the local and county dispatching AVC systems have been in independent operation, and their application scope is accordingly limited to the local or county dispatching grids within their jurisdiction. Although each independent system can achieve local voltage and reactive power control, the mutual In the absence of effective communication and coordination, it is impossible to realize the rational flow of reactive power flow and the optimal allocation of reactive power resources in a wider range

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