A system for real-time monitoring and protection of power grid faults and its working method

Abstract

The invention discloses a power grid fault real-time monitoring and protection system and a working method thereof, wherein the power grid fault real-time monitoring and protection system includes: a main power grid information collection system, which is used to collect power grid data and upload it through a partitioned network communication system To the main control system; the intelligent terminal, which is used to collect the operating status and fault information of the bus line of the partition to which the intelligent terminal belongs and upload it to the main control system; Static and transient real-time analysis is performed on the grid data to form control commands, and the control commands are sent to the grid protection system and smart terminals for corresponding protection actions.

Description

technical field [0001] The invention belongs to the field of grid faults, and in particular relates to a real-time monitoring and protection system for grid faults and a working method thereof. Background technique [0002] The power grid protection and fault early warning system plays an important role in assisting dispatchers in decision-making. It is an indispensable tool for dispatching centers. Its main functions are composed of basic functions and application functions, including data collection and monitoring, network analysis, Action delivery and other functions. However, its main application mode is only executed at the request of the dispatcher, focusing on the research mode, and lacks the functions of automatically tracking the operating status of the power grid, automatically diagnosing power grid problems, and automatically giving control strategies and operation mode adjustment strategies. [0003] In addition, the existing system can only perform static analy...

AI Technical Summary

Problems solved by technology

However, its main application mode is only executed at the request of the dispatcher, focusing on the research mode, and lacks the functions of automatically tracking the operation status of the power grid, automatically diagnosing power grid problems, and automatically giving control strategies and operation mode adjustment strategies

[0003] In addition, the existing system can only perform static analysis and lacks online transient stability, voltage stability, and dynamic stability analysis functions. The entire system is not intelligent enough. In order to ensure the necessary safety and stability margin, extreme methods are usually used in the calculation work of the schedule method. conduct research that does not maximize the operational benefits of the grid

It can be seen that there are many shortcomings in the existing power grid protection system. With the continuous increase of the power receiving ratio and capacity of the power grid, and the change of the power grid operation mode, especially the implementation of partitioned operation, the safety of the power grid Potential threats are increasing day by day, and it is difficult to rely only on traditional protection systems, which puts forward higher requirements for traditional protection systems, so it is urgent to provide a real-time monitoring and protection system for power grid faults

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