A Fiber Bragg Grating—Bimetal Temperature Sensor for Solar Panel Inverters

Ismail, Mohd Afiq and Tamchek, Nizam and Hassan, Muhammad Rosdi Abu and Dambul, Katrina D. and Selvaraj, Jeyrai and Abd Rahim, Nasrudin and Sandoghchi, Reza and Adikan, Faisal Rafiq Mahamd (2011) A Fiber Bragg Grating—Bimetal Temperature Sensor for Solar Panel Inverters. Sensors, 11 (9). pp. 8665-8673. ISSN 1424-8220

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Official URL: http://dx.doi.org/10.3390/s110908665

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 degrees C and 90 degrees C. The region from 41 degrees C to 90 degrees C shows the highest sensitivity, with a value of 14 pm/degrees 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.

Item Type: Article
Subjects: Q Science > QD Chemistry
Divisions: Faculty of Engineering (FOE)
Depositing User: Ms Rosnani Abd Wahab
Date Deposited: 09 Jan 2012 03:59
Last Modified: 09 Jan 2012 03:59
URI: http://shdl.mmu.edu.my/id/eprint/3345

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