IED (intelligent electronic device) network pressure control method for intelligent substation process layer and IED network pressure control device for same

Abstract

The invention relates to an IED (intelligent electronic device) network pressure control method for an intelligent substation process layer and an IED network pressure control device for the same. The method includes the steps of arranging a received data packet counting module in an internet access driving module; executing CPU (central processing unit) load monitoring tasks at a regular time by means of sleep; when the tasks are activated, invoking a counting value clearing interface driven by internet accesses to clear the counting value of a received data packet; and then examining whether the receiving function of each internet access is closed or not, if yes, opening the receiving function of each internet access, and when data traffic received by each internet access is larger than a preset value, automatically closing the data receiving function of the internet access. By means of traffic control of each internet access, when one internet access of intelligent terminal equipment is high in network pressure, the functions of other internet accesses are unaffected, failure possibility of the intelligent terminal equipment is eliminated in the severe network environment, and reliability of equipment operation is ensured.

Description

technical field [0001] The invention belongs to the technical field of power system substation automation, and relates to a method and device for controlling IED network pressure at the process layer of an intelligent substation. Background technique [0002] As a new IED device in smart substations, smart terminals are suitable for various primary switch bays or transformer bays in smart substations. Its two most important functions are: 1) Receive control commands or relay protection devices from the process layer network The direct control command, and drives the corresponding outlet circuit to complete the control function of the primary equipment, and has the function of preventing misoperation. 2) Collect real-time data such as equipment location signals and alarm signals once, and publish them to the process layer network through GOOSE services. [0003] Due to the key position and important functions of the intelligent terminal equipment in the intelligent substatio...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method and device for controlling IED network pressure in the process layer of an intelligent substation to solve the problem that when one network port in the process layer IED network port is affected by network pressure, the functions of other network ports are also affected by it.

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