CUED Publications database

IGBT series connection under active voltage control

He, W and Palmer, P and Zhang, X and Snook, M and Wang, Z (2011) IGBT series connection under active voltage control. Proceedings of the 2011 14th European Conference on Power Electronics and Applications, EPE 2011.

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Abstract

In this paper an Active Voltage Control (AVC) technique is presented, for series connection of insulated-gate-bipolar-transistors (IGBT) and control of diode recovery. The AVC technique can control the switching trajectory of an IGBT according to a pre-set reference signal. In series connections, every series connected IGBT follows the reference and so that the dynamic voltage sharing is achieved. For the static voltage balancing, the AVC technique can clamp the highest collector-to-emitter voltage to a pre-set clamping voltage level. By selecting the value of the clamping voltage, the difference among series connected IGBTs can be controlled in an accepted range. Another key advantage for AVC is that by changing the reference signal at turn-on, the diode recovery can be optimized. © 2011 EPE Association - European Power Electr.

Item Type: Article
Uncontrolled Keywords: Diode IGBT Power semiconductor device Soft switching
Subjects: UNSPECIFIED
Divisions: Div B > Electronics, Power & Energy Conversion
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 11:59
Last Modified: 28 Nov 2014 19:05
DOI: