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Experimental device for temperature measurement of GIS disconnector shell fiber grating temperature sensors

A temperature sensor and isolating switch technology, which is applied in the direction of measuring devices, thermometers, circuit breaker testing, etc., can solve the problems of increasing the workload of installing sensors, reducing model accuracy, and reducing computing efficiency, so as to reduce the number of sensors and improve accuracy , the effect of improving the calculation rate

Inactive Publication Date: 2019-02-15
STATE GRID CHONGQING ELECTRIC POWER CO ELECTRIC POWER RES INST +2
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Problems solved by technology

[0004] In general, the more the number of GIS shell temperature sensors are arranged, the greater the amount of information it provides for the model, and the higher the accuracy of the monitoring method established, but the increase in the number of sensors will inevitably increase the cost, and the number of sensors is too large. Too many will greatly increase the workload of installing sensors and algorithms to process data, and reduce computing efficiency. However, too few sensor measurement points will greatly reduce the accuracy of the model.

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  • Experimental device for temperature measurement of GIS disconnector shell fiber grating temperature sensors
  • Experimental device for temperature measurement of GIS disconnector shell fiber grating temperature sensors

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specific Embodiment approach

[0034] The specific implementation method is as follows: an experimental device for measuring the temperature of a real 500kV GIS isolation switch with a grating optical fiber temperature sensor.

[0035] The fiber grating temperature sensor is used to measure the temperature of the relevant parts of the shell, the thermocouple is used to measure the temperature of the contacts, and the temperature signal is recorded by an automatic acquisition device. Based on the distribution of the temperature field, the temperature of the shell is generally higher than that at the top and low at the bottom. The contact temperature change response is relatively sensitive. Combined with the principle of temperature sensor layout, a total of 3 measurement sections from A to C are set on the surface of the shell, among which the shell sensors B1, B2, B3, B4, B5, B6, B7, B8 (the distance between the sensors 45°) is installed on the section where the contact is located. At the same time, two meas...

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Abstract

The invention discloses an experimental device for temperature measurement of GIS disconnector shell fiber grating temperature sensors, which comprises a large current generator, a temperature measurement system, a GIS disconnector and a plurality of shell temperature sensors. The GIS disconnector comprises a contact, and the shell temperature sensors are fixed on the contact. Every two shell temperature sensors are fixedly arranged at an interval of 45 degrees. The contact of the GIS disconnector is also connected with the large current generator. The temperature measurement system is connected with the GIS disconnector. According to the invention, the layout of the GIS disconnector shell temperature sensors is optimized, the temperature of the contact is inverted by using a support vector machine, and an optimal sensor layout scheme is determined by combining the advantages, so as to improve the accuracy of temperature monitoring of the disconnector contact based on a GIS shell and environmental temperature measurement.

Description

technical field [0001] The invention relates to the technical field of GIS equipment, in particular to a temperature measurement experimental device of a grating optical fiber temperature sensor for a shell of a GIS isolating switch. Background technique [0002] Gas Insulated Switchgear (GIS) is not affected by the environment, short construction and installation time, low construction cost, safe and reliable operation, less maintenance workload, low operating cost, free from radio interference, small footprint, etc. Advantages Rapid development and widely used in high voltage and extra / ultra high voltage fields of power systems, and will be applied on a larger scale in the future. GIS equipment is a fully enclosed switchgear with high operational reliability, but due to its compact structure and tight packaging, the problem of overheating of equipment contacts is particularly serious, and failure will cause serious economic losses. Therefore, after GIS equipment is put int...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K11/32G01R31/327G01K11/3206
CPCG01K11/32G01R31/327
Inventor 苗玉龙谢刚文唐炬姚强曾福平侯雨杉胡晓锐邱妮张施令宫林籍勇亮代靓君
Owner STATE GRID CHONGQING ELECTRIC POWER CO ELECTRIC POWER RES INST
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