Reliability design method for large electric network safety steady cooperativeness defensive system

Abstract

A reliability design approach of the power pool safe stable coordination defense system includes a control framework with the site population and function division, wherein the control framework includes a dispatching center station, a control main station, a control sub-station and a control execution station, the control sub-station and the control execution station realize the regional control; and the control main station take charge of the coordination of each regional control; the dispatching center station take charge of the computation of the online control strategy and the online coordination control between the main control stations. The invention effectively solves the reliability problems of the coordination defense system caused by the device, the communication and the software and the like; the online control framework of 'site population and function division' avoids the paralysis of the whole system caused by the local device and the communication failure, advances the whole reliability of the coordination defense system; the computing device and the control device adopt the redundant configuration, which enhances the local reliability of the system; the coordination control system adopts the online and the off-line operation mode switching mechanism, which advances the operation reliability of the system.

Description

technical field [0001] The invention relates to a reliability design method of a safety and stability coordination defense system of a large power grid, belonging to the technical field of power systems. Background technique [0002] The large power grid security and stability coordination defense system obtains real-time data of the power grid from measurement systems such as SCADA / EMS, PMU, and security control. After integration, real-time network model data with a certain degree of accuracy are formed. On this basis, the safety and stability monitoring, evaluation, analysis and early warning of large power grids, as well as coordinated control decisions for preventive control and emergency control are carried out. The establishment of the large power grid security and stability coordination defense system provides a strong technical guarantee for the large power grid security and stability early warning and decision-making. [0003] For a long time, people have extensiv...

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Problems solved by technology

[0003] For a long time, people have extensively and deeply studied the reliability of the control object, that is, the power system, but the research on the reliability of the control system, especially the coordinated defense system of the large power grid, is still relatively scarce.

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