光纤布拉格光栅-双金属温度传感器，用于太阳能电池板逆变器。

A fiber Bragg grating--bimetal temperature sensor for solar panel inverters.

机构信息

Department of Electrical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia.

出版信息

Sensors (Basel). 2011;11(9):8665-73. doi: 10.3390/s110908665. Epub 2011 Sep 6.

DOI:10.3390/s110908665

PMID:22164098

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3231502/

Abstract

This paper reports the design, characterization and implementation of a fiber Bragg grating (FBG)-based temperature sensor for an insulted-gate Bipolar transistor (IGBT) in a solar panel inverter. The FBG is bonded to the higher coefficient of thermal expansion (CTE) side of a bimetallic strip to increase its sensitivity. Characterization results show a linear relationship between increasing temperature and the wavelength shift. It is found that the sensitivity of the sensor can be categorized into three characterization temperature regions between 26 °C and 90 °C. The region from 41 °C to 90 °C shows the highest sensitivity, with a value of 14 pm/°C. A new empirical model that considers both temperature and strain effects has been developed for the sensor. Finally, the FBG-bimetal temperature sensor is placed in a solar panel inverter and results confirm that it can be used for real-time monitoring of the IGBT temperature.

摘要

本文报告了一种基于光纤布拉格光栅（FBG）的温度传感器的设计、特性和实现，用于太阳能电池板逆变器中的绝缘栅双极晶体管（IGBT）。FBG 被黏合到双金属片的热膨胀系数（CTE）较高的一侧，以提高其灵敏度。特性分析结果表明，温度的升高与波长的偏移之间存在线性关系。研究发现，传感器的灵敏度可以在 26°C 到 90°C 之间的三个特性温度区域中进行分类。在 41°C 到 90°C 的区域内，灵敏度最高，为 14 pm/°C。已经为传感器开发了一种新的经验模型，该模型同时考虑了温度和应变的影响。最后，将 FBG-双金属温度传感器放置在太阳能电池板逆变器中，结果证实它可用于实时监测 IGBT 温度。