Method for remote diagnosis of abnormal equipment based on telemetry

A diagnostic method and technology of moving equipment, applied in the field of diagnosis, to achieve the effect of improving the level

Active Publication Date: 2018-11-23
STATE GRID ZHEJIANG ELECTRIC POWER +2
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Problems solved by technology

Thus, a dilemma arises

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  • Method for remote diagnosis of abnormal equipment based on telemetry

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Embodiment Construction

[0048] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0049] In this technical solution, through the calculation and analysis of recent telemetry historical data, problems that can be found by EMS but ignored due to performance considerations can be found. The details of this embodiment are as follows:

[0050] Through the deep inspection method, remote diagnosis can be made for the abnormality of telemetry abnormal equipment. Diagnosis items can be divided into the following aspects: diagnosis of no change in telemetry, diagnosis of overrunning of telemetry, diagnosis of unbalanced power flow of main transformer busbar, diagnosis of abnormal temperature rise of transformer.

[0051] 1. Telemetry does not change diagnostics

[0052] The system identifies the active power, reactive power and current telemetry point data of the three-side windings, lines, and loads of the main transform...

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Abstract

A method for remote diagnosis of abnormal equipment based on telemetry relates to a diagnosis method. At present, the real-time performance of power grid automation system and the eradication of hopping cannot be taken into consideration simultaneously. The invention comprises a telemetry invariance diagnosis, a telemetry overrun diagnosis, a main transformer bus power flow unbalance diagnosis anda transformer temperature rise abnormal diagnosis. The technical scheme solves the problem that the abnormal situation of the equipment can be detected without affecting the operation performance ofthe EMS by means of using an external plug-in system; deep patrol automatically identifies the data of power network operation at fixed period, searches out the problem information, and displays it through charts and graphs. Monitoring information analysts can analyze the current information obtained through the depth patrol, also can query the historical patrol information and form the same period, ring comparison results, so as to discover the potential problems and security risks in power grid operation; through the depth patrol function, the deficiencies and omissions in the normal monitoring work of the monitors are remedied, so as to further improve the level of safe operation of the power grid.

Description

technical field [0001] The invention relates to a diagnosis method, in particular to a remote diagnosis method based on telemetry abnormality equipment abnormality. Background technique [0002] The telemetry data provided by the power grid automation system (EMS) must have the two most basic indicators of real-time and correctness, so as to meet the requirements of monitoring and dispatching personnel to grasp and accurately adjust the working conditions of the power grid in a timely manner. [0003] The so-called real-time performance means that after the state of the primary equipment in the power grid changes, the relevant information can be reflected to the dispatch center immediately, and the longest delay of the lag should generally not exceed 3 seconds; the so-called correctness refers to the state of all primary equipment The information must fully conform to the current actual working conditions of the power grid: for remote signaling data, there must be no misoper...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00H02J13/00G01R31/08
CPCG01R31/088H02J13/0006H02J3/00H02J2203/20
Inventor 钱建国李英施正钗朱炳铨姚仲焕王晓陈家乾赵玉成杨兴超莫建国莫莉晖魏美兰江雯姬袁楚楚藏怡宁
Owner STATE GRID ZHEJIANG ELECTRIC POWER
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