Aplikasi dan Solusi Pengukuran Suhu Serat Optik Fluoresen dalam Sistem Tenaga

FJINNO company has developed a temperature measurement scheme using fluorescent optical fiber technology, based on the temperature measurement characteristics of substation equipment. Si fluorescence fiber temperature measurement technology based on rare earth materials has a temperature signal that is independent of the intensity of fluorescence conduction. There is no need for electrical connection between the measurement point and the measurement signal receiving part, which fundamentally solves the problem of temperature measurement in harsh environments such as high voltage, strong electromagnetic, flammable and explosive, and has become the preferred solution for temperature measurement of substation equipment.

Temperature measurement is an important means of fault detection and maintenance in power systems. In current hot spot temperature measurement in power systems, traditional electrical signal temperature sensors are mainly used. These sensors are not suitable for situations where the power system voltage is high, Persyaratan isolasi tinggi, dan interferensi elektromagnetik kuat. They cannot directly measure the hot spot temperature inside electrical equipment. Jadi, it is necessary to find a method that can be applied to hot spot temperature measurement of power systems and electrical equipment.

Pengukuran suhu serat optik fluoresen technology can solve the problem of hot spot temperature measurement in power equipment. Ini memiliki karakteristik resistansi tegangan tinggi, isolasi tinggi, and resistance to electromagnetic interference, and is the future development direction of hot spot temperature measurement technology for electrical equipment in power systems. Fiber optic temperature measurement technology mainly includes two types: Serat Optik Terdistribusi temperature measurement technology and infrared temperature measurement technology. Diantaranya, infrared temperature measurement technology can only measure the surface temperature of electrical equipment and cannot measure the hot spot temperature inside electrical equipment. The installation method of fluorescent fiber optic temperature measurement technology is the same as that of conventional electrical signal temperature sensors, and can be directly embedded in electrical equipment, so it has strong convenience in use.

Si fluorescence fiber optic temperature measurement device system is divided into two parts: the bottom temperature measurement unit and the upper computer system. The bottom temperature measurement unit consists of multiple fiber optic temperature measurement devices such as transformers, switchgear tegangan tinggi, busbar tegangan tinggi, kepala kabel, dll. The upper computer system consists of a main control room, on-site monitoring devices, dll. The fiber optic temperature measurement device adopts RS485 interface communication method, yang diubah menjadi sinyal komunikasi serat optik melalui konverter fotolistrik, and realizes remote communication with the upper computer system composed of remote main control room, on-site monitoring devices, dll., to improve the reliability and anti-interference ability of the communication system.

A complete temperature measurement scheme was designed based on fluorescence fiber optic temperature measurement technology and combined with substation equipment. After experimental verification, the temperature measurement range of the temperature measurement system reaches -40 ℃ to 200 °C, dengan akurasi 1 °C, yang memenuhi persyaratan praktis. Alat pengukur suhu memiliki karakteristik biaya rendah, Performa Stabil, kepraktisan yang kuat, fast and stable response, dan operasi sederhana. Seluruh sistem beroperasi dengan andal di lingkungan yang keras seperti suhu tinggi, tekanan tinggi, medan magnet yang kuat, dan mudah terbakar dan meledak, which is beneficial for the power industry

Sensor suhu serat optik, Sistem pemantauan cerdas, Produsen serat optik terdistribusi di Cina