Soft-switched MCT/IGBT inverter for motor drive applications

Author

Borowy, Bogdan S. ; Donegan, Kevin ; Rajashekara, Kaushik

Author_Institution

SatCon Technol. Corp., Cambridge, MA, USA

fYear

1998

fDate

22-23 Oct 1998

Firstpage

53

Lastpage

62

Abstract

The use of MCTs in a soft switched PWM inverter application is presented. The MCTs are power devices that are capable of handling high di/dt and high dv/dt. Their weak point is high turn-off switching losses. A topology of the MCT/IGBT inverter is proposed. To minimize the switching losses, the devices are soft switched on at zero voltage switch (ZVS) conditions and turned off at zero current switch (ZCS) conditions. An auxiliary resonant commutated pole (ABCP) inverter is presented and analyzed for soft switching of MCT/IGBT modules of a PWM inverter for motor drive applications. A novel ARCP control technique is presented that is based on pre-calculated gating times. It reduces the cost of the ARCP controller with no need for high speed sensing devices

Keywords

AC motor drives; MOS-controlled thyristors; PWM invertors; commutation; electric vehicles; insulated gate bipolar transistors; losses; power semiconductor switches; resonant power convertors; switching circuits; ZCS; ZVS; auxiliary resonant commutated pole inverter; high turn-off switching losses; hybrid electric vehicles; motor drive applications; pre-calculated gating times; soft-switched MCT/IGBT inverter; switching losses minimisation; zero current switch conditions; zero voltage switch conditions; Commutation; Insulated gate bipolar transistors; Motor drives; Pulse width modulation inverters; Resonance; Switches; Switching loss; Topology; Zero current switching; Zero voltage switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics in Transportation, 1998

Conference_Location

Dearborn, MI

Print_ISBN

0-7803-4398-0

Type

conf

DOI

10.1109/PET.1998.731057

Filename

731057