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CVT state evaluation system and method

A state evaluation and state technology, applied in complex mathematical operations, instruments, data processing applications, etc., can solve problems that affect the safe operation of the power grid, are prone to failure, and cannot cover the entire life cycle

Pending Publication Date: 2020-11-27
GUANGDONG POWER GRID CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are certain limitations in both the test time and the test items, which cannot cover its entire life cycle, and are prone to failures during operation, which will affect the safe operation of the power grid.

Method used

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  • CVT state evaluation system and method
  • CVT state evaluation system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] An embodiment of the present invention provides a CVT state evaluation system, figure 1 It is a structural block diagram of a CVT state assessment system provided in Embodiment 1 of the present invention, refer to figure 1 ,include:

[0047] The data collection module 10 is used to collect the test data of the CVT running state, and the test data includes power failure pre-test data, live test data and online monitoring data;

[0048] On-the-spot monitoring module 20, comprises data processing unit 21, and data processing unit 21 is connected with data acquisition module 10 communication, is used for carrying out fuzzy quantification processing and setting up data quantification model to test data by fuzzy mathematical control algorithm;

[0049] The station-end monitoring module 30 includes a state comprehensive evaluation unit 31, which is connected to the data processing unit 21 in communication, and is used to analyze and compare the data quantification model throu...

Embodiment 2

[0059] The embodiment of the present invention provides a CVT state evaluation system. On the basis of the above embodiments, the CVT state evaluation system provided by the embodiment of the present invention supplements the on-site monitoring module 20, image 3 It is a structural block diagram of a CVT state assessment system provided by Embodiment 2 of the present invention.

[0060] optional, see image 3 , the local monitoring module 20 also includes: a communication unit 22,

[0061] The communication unit 22 is respectively connected with the data acquisition module 10, the data processing unit 21 and the state comprehensive evaluation unit 31, and is used to transmit the test data collected by the data acquisition unit to the data processing unit 21, and transmit the data quantization model to the state Comprehensive assessment unit 31.

[0062] Specifically, the communication unit 22 is communicatively connected with the data acquisition module 10 , and multiple da...

Embodiment 3

[0069] The embodiment of the present invention provides a CVT state evaluation system. On the basis of the above embodiments, the CVT state evaluation system provided by the embodiment of the present invention supplements the station monitoring module 30, Figure 4 It is a structural block diagram of a CVT state assessment system provided by Embodiment 3 of the present invention.

[0070] optional, see Figure 4 , the station monitoring module 30 also includes: a host computer display unit 32, which is connected to the state comprehensive evaluation unit 31 for displaying the CVT running status and providing the corresponding operation and maintenance strategy.

[0071]Specifically, the station-end monitoring module 30 also includes a host computer display unit 32 , and the host computer display unit 32 is connected to the status comprehensive evaluation unit 31 . The state comprehensive evaluation unit 31 analyzes and compares the data quantification model through the import...

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Abstract

The embodiment of the invention discloses a CVT state evaluation system and method. The system comprises a data acquisition module, an in-situ monitoring module and a station end monitoring module; the data acquisition module is used for acquiring test data of the running state of the CVT; the in-situ monitoring module comprises a data processing unit, and the data processing unit is in communication connection with the data acquisition module and is used for performing fuzzy quantization processing on the test data through a fuzzy mathematical control algorithm and establishing a data quantization model; and the station end monitoring module comprises a state comprehensive evaluation unit, and the state comprehensive evaluation unit is in communication connection with the data processingunit and used for analyzing and comparing the data quantification model through imported historical sample data so as to evaluate the running state of the CVT and provide a corresponding operation andmaintenance strategy. According to the technical scheme provided by the embodiment of the invention, the evaluation of the running state of the CVT is realized, a basis and a direction are provided for power failure pre-test, the operation inspection efficiency is improved, and the power grid risk is reduced.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of power equipment testing and operation and maintenance, and in particular to a system and method for evaluating a CVT state. Background technique [0002] Capacitive voltage transformers (Capacitor Voltage Transformers, CVT) are divided by series capacitors, and then stepped down and isolated by electromagnetic transformers, as a voltage transformer for meter or relay protection. [0003] At present, the operation status of capacitive voltage transformers can only be detected through routine preventive tests. The pre-test period is divided into three years or six years according to different voltage levels. The test items include capacitance, dielectric loss and insulation resistance. Measurement. There are certain limitations in both the test time and the test items, which cannot cover its entire life cycle, and are prone to failures during operation, which will affect the safe oper...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06F17/15G06F17/16G06Q50/06
CPCG06Q10/06393G06F17/15G06F17/16G06Q50/06
Inventor 戴喜良刘珂魏东亮王植
Owner GUANGDONG POWER GRID CO LTD
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