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Protection device state trend analysis method based on online monitoring data

A protection device and monitoring data technology, applied in the field of smart substations, can solve the problems of less research on the impact of protection devices and lack of practical application of protection device operation status monitoring and early warning, so as to improve the efficiency of operation and maintenance, strengthen safe and stable operation, and improve The effect of operational reliability

Active Publication Date: 2019-06-21
CHINA SOUTHERN POWER GRID COMPANY +1
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  • Claims
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Problems solved by technology

However, the existing online monitoring devices lack practical application for monitoring and early warning of the protection device's operating status, and there are few studies on the impact of current environmental factor fluctuations and historical environmental factors on the protection device. still a certain distance

Method used

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  • Protection device state trend analysis method based on online monitoring data
  • Protection device state trend analysis method based on online monitoring data
  • Protection device state trend analysis method based on online monitoring data

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Embodiment Construction

[0042] In order to facilitate those of ordinary skill in the art to understand and implement the present invention, the present invention will be described in further detail below in conjunction with the examples. It should be understood that the implementation examples described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0043] Such as figure 1 As shown, a protection device status trend analysis method based on online monitoring data, including the following steps:

[0044] Step 1. Obtain the SCD file and analyze the model data. By analyzing the SCD file of the substation, the MMS data set entry of each protection device in the substation and the optical fiber transmission and reception relationship between the optical ports of each protection device are obtained. The protection device mentioned therein includes one or more of a relay protection device, a protection-test integration device, a com...

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Abstract

The invention discloses a protection device state trend analysis method based on online monitoring data. The method comprises the following steps of obtaining SCD files, analyzing model data, establishing a mapping relation between a protection device MMS data set entry and protection device online monitoring data; sETTING DATA PROCESSING RELATED PARAMETERS, through data acquisition and storage, calculating a fitting slope K, a fitting slope Kpw and a fitting slope Kc, judging whether the online monitoring data of the protection device is abnormal or not, calculating an out-of-limit moment, and performing early warning output, so that the state trend analysis and intelligent early warning of the protection device can be realized, the fault hidden danger of the secondary system of the transformer substation can be found as early as possible, and the operation and maintenance overhaul efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of intelligent substations, in particular to a method for analyzing the state trend of a protection device based on online monitoring data. [0002] technical background [0003] At present, with a large amount of investment in smart substations, the workload of operation and maintenance of protection devices is increasing rapidly, and the difficulty of operation and maintenance is also increasing. However, the existing online monitoring devices lack practical application for monitoring and early warning of the protection device's operating status, and there are few studies on the impact of current environmental factor fluctuations and historical environmental factors on the protection device. There is still a certain distance. Therefore, in order to improve the monitoring and early warning of the operating status of protective devices, it is of great significance to study the trend analysis method of protec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q10/04G06Q10/00G06Q50/06G06F16/248
CPCY04S10/50
Inventor 张弛黄佳胤丁晓兵杨经超余江周红阳徐鹏彭业刘千宽郑茂然高宏慧韩民畴
Owner CHINA SOUTHERN POWER GRID COMPANY
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