基于Bragg光纤光栅对干式空心电抗器固化温升的研究

Study on Curing Temperature of Dry-Type Air-Core Reactor Based on Fiber Bragg Grating

摘要: 干式空心电抗器的固化温升作为其生产流程中最关键环节之一，其环境温度的变化直接影响到干抗的匝间绝缘。本文结合厂家多年固化温升的经验，设计了一套基于Bragg光纤光栅的在线监测系统，该系统可对干式空心电抗器包封层的温度和应变进行在线测量。通过对干抗的现场固化温升实验的在线测量，得出了各包封层的温度和应变变化趋势。该研究成果将为变电站的干式空心电抗器实时监测提供重要的理论依据和设备支持。

Abstract: Curing temperature rise of dry-type air-core reactor is one of the most key links in the production process. The environment temperature changes directly affect the turn-to-turn insulation of dry resistance. In this paper, combining the manufacturers’ many years of experience of curing tem-perature rise, it designs a set of on-line monitoring system based on fiber Bragg grating. This sys-tem can do on-line measurement of dry-type air-core reactor temperature and strain of the coating layer. Through the online measurement of the curing temperature experiments of dry resistance, change trends of temperature and strain in each coating layer can be concluded. The results of the study will provide important theoretical basis and equipment support for the real-time monitoring of dry-type air-core reactor in transformer substation.