Safety and stability control system channel fault positioning method based on full-link alarm

A safety and stability control and fault location technology, applied in transmission systems, electrical components, etc., can solve the problems of reducing the safety risks of safety and stability control systems, relying on manual judgment, etc., to improve the efficiency and accuracy of channel fault location, and solve analysis difficulties. , the effect of reducing security risks

Pending Publication Date: 2022-01-07
NORTHWEST BRANCH OF STATE GRID POWER GRID CO
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art, provide a safety and stability control system channel fault location method based on full-link alarms, solve the current safety and stability control system channel failure mainly relying on manual judgment shortcomings, and improve the safety and stability control system The efficiency and accuracy of channel fault location reduce the safety risk of the safety and stability control system

Method used

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  • Safety and stability control system channel fault positioning method based on full-link alarm
  • Safety and stability control system channel fault positioning method based on full-link alarm
  • Safety and stability control system channel fault positioning method based on full-link alarm

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Such as figure 1 As shown, a channel fault location method for safety and stability control systems based on full-link alarms includes:

[0056] Obtain the alarm information of the safety and stability control device and the channel between the devices;

[0057] Build a safe and stable control system based on the obtained alarm information;

[0058] According to the pre-obtained alarm classification, the acquired alarm information is standardized, and the processed alarm information is obtained;

[0059] Based on the safety and stability control system, the preset channel fault decision tree is used to analyze the processed alarm information to obtain the location of the channel fault.

[0060] The safety and stability control system includes channel model and device topology model. Channel models are used to model channels between devices such as figure 2 As shown, it includes: the optical model of the local service segment, the electrical model of the local servi...

Embodiment 2

[0075] Such as Figure 4 Shown is a structural diagram of a one-to-one safety and stability control channel fault decision tree, including:

[0076] (1) If the master station generates a channel sending direction alarm, analyze the alarm generated by the slave station:

[0077] 1) If an alarm occurs in the receiving direction of the channel in the substation, the transmission link between the master station and the substation is interrupted, and the alarm on the communication side is analyzed to obtain the location of the channel failure;

[0078] 2) If an alarm occurs in the channel sending direction of the substation, the sending and receiving link between the master station and the substation is abnormal, and the alarm on the communication side is analyzed to obtain the location of the channel failure;

[0079] 3) If there is no channel alarm on the substation, and if there is no alarm on the communication side, check whether the device is abnormal. If there is no abnormal...

Embodiment 3

[0088] Such as Figure 5 Shown is a structure diagram of a one-to-many safety and stability control channel fault decision tree, including:

[0089] (1) If all substations have alarms, use one-to-one safety and stability control channel fault decision tree analysis to get the channel fault location.

[0090] (2) If an alarm occurs in some substations, use the following steps to analyze:

[0091] 1) If the master station generates a channel sending direction alarm, analyze the alarm generated by the slave station:

[0092] a) If the channel receiving direction alarm occurs in the substation, the transmission link between the master station and the substation is interrupted, and the alarm on the communication side is analyzed. If there is no alarm on the communication side, the positioning is performed through the alarm between the substation and other stations. If the channels of other stations have sending and receiving abnormalities, the optical model of the local service s...

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Abstract

The invention discloses a safety and stability control system channel fault positioning method based on a full-link alarm. The method comprises the following steps: collecting alarm information of safety and stability control devices and channels between the devices; building a safety and stability control system based on the obtained alarm information; according to pre-obtained alarm classification, performing standardization processing on the obtained alarm information to obtain processed alarm information; and based on the safety and stability control system, analyzing the processed alarm information by adopting a preset channel fault decision tree to obtain the position of the channel fault. The method can solve the defect that the channel fault of the safety and stability control system mainly depends on manual judgment at present, improves the positioning efficiency and accuracy of the channel fault of the safety and stability control system, and reduces the safety risk of the safety and stability control system.

Description

technical field [0001] The invention relates to a channel fault location method for a safety and stability control system based on full-link alarms, and belongs to the technical field of electric power communication. Background technique [0002] In recent years, with the continuous expansion of DC and new energy, the operating environment of the system has become more complex. Scheduling and production tasks such as power grid regulation, fault prevention, and source-network-load-storage coordination have put forward higher requirements for continuously improving the operation guarantee capability of the power communication network. It is required to strengthen the support ability of communication dispatching operation to power grid dispatching, especially to improve the risk prevention and fault handling efficiency of "end-to-end" channel of relay protection and stability control business, which is an important aspect to further strengthen the business support ability of la...

Claims

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Application Information

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IPC IPC(8): H04L41/0677
CPCH04L41/0677
Inventor 王炫杨斌程松李欣胡勇王世杰
Owner NORTHWEST BRANCH OF STATE GRID POWER GRID CO
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