Electric network relay protection and fault analysis system

A technology of relay protection and fault analysis, applied in the direction of emergency protection circuit devices, electrical components, etc., to achieve the effect of standardizing maintenance and management work, simplifying maintenance and management work

Inactive Publication Date: 2010-09-29
HEFEI POWER SUPPLY COMPANY OF STATE GRID ANHUI ELECTRIC POWER
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when an accident occurs in the power grid, it is an important technical problem for the accident judgment, processing and recovery system to effectively and timely grasp the fault information. This technical problem has not been well solved so far.

Method used

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  • Electric network relay protection and fault analysis system
  • Electric network relay protection and fault analysis system
  • Electric network relay protection and fault analysis system

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Embodiment Construction

[0025] see figure 1 , figure 2 , in this embodiment, the information network is formed by each substation system, substation system and master station system; wherein:

[0026] The substation system is located in the substation, and each substation system is connected to the substation system through Ethernet, SDH digital network or dedicated line and carrier. The same substation system can be connected to multiple levels of substation systems; the main station system is located in the dispatching center, each substation system is connected to the main station system through the power dispatching data network; The system can directly obtain the system data of all substations, and can also obtain the data of the non-directly connected substation systems associated with it through the main station system; Analyze grid faults and provide relay protection.

[0027] In specific implementation, the corresponding system settings include:

[0028] 1. Introduce IEC61850 communicat...

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Abstract

The invention discloses an electric network relay protection and fault analysis system which is characterized in that an information network is formed by branch station systems, substation systems and a main station system, wherein the branch station systems are positioned in a transformer substation; each branch station system is connected to the substation systems through Ethernet, an SDH (Synchronous Digital Hierarchy) digital network or in the mode of special lines or carrier waves; the same branch substation system can be connected to a plurality of levels of substation systems; the main station system is positioned in a dispatching center; each substation system is connected with the main station system through an electric power dispatch data network; the information network monitors the operation conditions of an electric network through information transmitted by each intelligent device in the transformer substation, analyzes faults of the electric network according to the obtained information, and provides relay protection. The electric network relay protection and fault analysis system is a support system for relay protection operation and management as well as an information support, auxiliary analysis and decision system.

Description

technical field [0001] The invention relates to a power grid relay protection and fault analysis system. Background technique [0002] As the scale of the power grid continues to expand, the operation mode becomes more and more complex, and the impact of the operation and action of relay protection on system security also increases. On the other hand, with the improvement of the digitalization of relay protection devices, the amount of transmission of protection information during power grid operation and failures has greatly increased, resulting in the amount of information that power grid dispatching operators and protection professionals need to pay attention to. It also increases exponentially, which objectively increases the difficulty for power grid operators to judge the nature of the accident and deal with the accident; the time required to restore the system operation is lengthened. For power grid dispatching, when a fault occurs in the power system, especially a l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02H7/28
Inventor 张谢赵长明傅浩高浩宇汪晓彤
Owner HEFEI POWER SUPPLY COMPANY OF STATE GRID ANHUI ELECTRIC POWER
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