Controlled switching of high voltage IGBTs in series

Author

Wang, Yalan ; Abu Khaizaran, Muhammad S. ; Palmer, Patrick R.

Author_Institution

Dept. of Eng., Cambridge Univ., UK

fYear

2003

fDate

16-18 Dec. 2003

Firstpage

297

Lastpage

300

Abstract

This paper is focused on the investigation of performance and improvement of the switching control of high voltage IGBTs especially when connected in series. A variety of seriesing methods are explored and valuated. Due to the dominant advantages the Active Voltage Control (AVC) strategy is characterized, analyzed and optimised in simulation and experiments. A new method Active Voltage/Current Control (AV/CC) is advanced and validated for di/dt control. It is concluded that the AVC, particularly with the di/dt auxiliary loop control, allows the operation of high power IGBTs in series to be closely defined and well controlled.

Keywords

choppers (circuits); electric current control; insulated gate bipolar transistors; power semiconductor switches; switching; voltage control; active voltage control; auxiliary loop control; controlled switching; current control; high power IGBT; series connection; switching control; Automatic voltage control; Circuit simulation; Communication switching; Communication system control; Digital control; Insulated gate bipolar transistors; MOSFETs; Master-slave; Switches; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Electron Devices and Solid-State Circuits, 2003 IEEE Conference on

Print_ISBN

0-7803-7749-4

Type

conf

DOI

10.1109/EDSSC.2003.1283535

Filename

1283535