Online monitoring of IGBT junction temperature based on Vce measurement

Han Cao; Puqi Ning; Xiaoguang Chai; Dan Zheng; Yuhui Kang; Xuhui Wen

Online monitoring of IGBT junction temperature based on Vce measurement

Vol. 21, No. 2, pp. 451-463, Feb. 2021

10.1007/s43236-020-00178-5

IGBT modules

Online junction temperature monitoring

On-state voltage measurement circuit

Abstract

In this paper, an online junction temperature monitoring method based on the on-state voltage under high collector current density measurements for IGBT power modules is proposed. Unlike the conventional junction temperature monitoring method, the presented method can extract the junction temperature during operation without altering the modulation strategy or topology of the converter. The proposed method is verified by simulations and the JEDEC-51 standard recommended approach. To accurately extract the on-state voltage during operation, a measurement circuit that combines the advantages of both the active MOSFET clamp and the diode clamp is designed and tested. It has been shown to have good accuracy and a rapid response time. After the calibration results are obtained, the presented method is applied to a three-phase voltage source converter controlled by a closed-loop SVPWM modulation strategy.

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Cite this article

[IEEE Style]

H. Cao, P. Ning, X. Chai, D. Zheng, Y. Kang, X. Wen, "Online monitoring of IGBT junction temperature based on Vce measurement," Journal of Power Electronics, vol. 21, no. 2, pp. 451-463, 2021. DOI: 10.1007/s43236-020-00178-5.

[ACM Style]

Han Cao, Puqi Ning, Xiaoguang Chai, Dan Zheng, Yuhui Kang, and Xuhui Wen. 2021. Online monitoring of IGBT junction temperature based on Vce measurement. Journal of Power Electronics, 21, 2, (2021), 451-463. DOI: 10.1007/s43236-020-00178-5.