Share Email Print
cover

Proceedings Paper • new

A fiber bragg grating sensing system for monitoring IGBT temperature distribution and thermal conduction state of upper surface silicone
Author(s): Jin-long Zhang; He You; Jing He; Xiang-jun Xin; Feng Tian
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

IGBT is a high-power device used in the field of power electronics. Its internal temperature rise will lead to module failure, which will seriously affect the safe operation of high-voltage converter systems. At present, mature methods used in IGBT failure detection are limited to indirect analysis through current and voltage, and less to real-time measurement of internal temperature distribution and thermal conduction state. In this paper, a fiber grating sensing system is introduced in the silica-gel layer inside the IGBT. We design and build a fiber grating sensor system for real-time monitoring of the IGBT internal temperature distribution and the thermal conduction state of the silica-gel, and it is monitored online in the incubator, laboratory and operating conditions. The system has been running in Xiamen Ludao ±320kV flexible DC converter station demonstration project for five months. The results show that the system has strong stability and fast response time, and the data acquisition can be synchronized with IGBT temperature changing. It provides a reliable basis and timely alarming for the fault detection.

Paper Details

Date Published: 12 December 2018
PDF: 6 pages
Proc. SPIE 10846, Optical Sensing and Imaging Technologies and Applications, 1084616 (12 December 2018); doi: 10.1117/12.2504376
Show Author Affiliations
Jin-long Zhang, Henan Univ. (China)
He You, Beijing Univ. of Posts and Telecommunications (China)
Jing He, Beijing Univ. of Posts and Telecommunications (China)
Xiang-jun Xin, Beijing Univ. of Posts and Telecommunications (China)
Feng Tian, Beijing Univ. of Posts and Telecommunications (China)


Published in SPIE Proceedings Vol. 10846:
Optical Sensing and Imaging Technologies and Applications
Mircea Guina; Haimei Gong; Jin Lu; Dong Liu, Editor(s)

© SPIE. Terms of Use
Back to Top