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Automatic sensing method for online monitored data of partial discharge

A partial discharge and monitoring data technology, which is applied in the direction of testing dielectric strength, etc., can solve the problems of sampling data validity without better processing methods, and lack of operability

Inactive Publication Date: 2012-11-21
SHANGHAI XINYING POWERTECH
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Problems solved by technology

[0004] In the current partial discharge online monitoring system on the market, each manufacturer has its own design and implementation, but there is no good processing method for the validity of the sampling data, and a set of data can only be proved by comparing the offline data with the offline laboratory is it effective
[0005] The data comparison with the offline laboratory has its limitations, that is, the data obtained can only be comparable if the laboratory staff and the partial discharge online monitoring system take samples at the same time; for the long-term on-site partial discharge online monitoring system, It is obviously not operable to compare offline and online data at any time

Method used

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  • Automatic sensing method for online monitored data of partial discharge
  • Automatic sensing method for online monitored data of partial discharge

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Embodiment

[0022] Such as figure 1 , figure 2 Shown, a kind of automatic detection method of partial discharge on-line monitoring data, this method is applied in the partial discharge on-line monitoring system that adopts sensor array, described automatic detection method is the validity of the data of partial discharge on-line monitoring system Automatic analysis and judgment can effectively detect invalid partial discharge online monitoring data.

[0023] Described automatic detection method specifically comprises the following steps:

[0024] 1) The sensor array 1 in the partial discharge on-line monitoring system sends the detected monitoring data to the filter circuit 2 for filtering and then transmits it to the analog-to-digital conversion circuit 3;

[0025] 2) The analog-to-digital conversion circuit 3 converts the received data into a digital signal and transmits it to the digital signal processor 4;

[0026] 3) The digital signal processor 4 compares the received data with ...

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Abstract

The invention relates to an automatic sensing method for online monitored data of partial discharge. The method is applied to an online monitoring system for partial discharge adopting a sensor array. According to the automatic sensing method, the validity of data of the online monitoring system for partial discharge is automatically analyzed and judged, and invalid online monitored data for partial discharge is effectively detected. Compared with the prior art, the automatic sensing method for online monitored data of partial discharge has the advantages that the data accuracy and reliability of the online monitoring system for partial discharge can be effectively improved, a great amount of manpower resource and equipment maintenance cost can be saved, and the like.

Description

technical field [0001] The invention relates to a related technology of partial discharge monitoring data processing, in particular to an automatic detection method of partial discharge online monitoring data. Background technique [0002] At present, in the power system, the system for on-line monitoring and analysis of the partial discharge of transformers, GIS and other equipment is widely used. In the smart substation technology, the partial discharge online monitoring system has become the monitoring system that must be used for newly built and operating transformers, GIS and other equipment. Project, because the partial discharge online monitoring system plays an important role in ensuring the normal operation of the power grid, so how to ensure the validity of the partial discharge online monitoring data has very positive practical significance. [0003] Partial discharge on-line monitoring system is a device for monitoring partial discharge of transformers, GIS and o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/12
Inventor 李大刚
Owner SHANGHAI XINYING POWERTECH
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