Failures-tolerance and remedial strategies of a PWM multicell inverter

Author

Richardeau, F. ; Baudesson, Ph. ; Meynard, T.

Author_Institution

ENSEEIHT, Toulouse, France

Volume

2

fYear

2000

fDate

2000

Firstpage

649

Abstract

The aim of this paper is to explain the specific short-circuit tolerance of an IGBT multicell inverter when a commutation failure occurs. IGBT stresses are described and calculated. The design and the lab-test of a sensor able to perform monitoring and failure diagnosis are also presented. The real-time diagnosis allows either a safe stop or a remedial control strategy based on the reconfiguration of the PWM modulator. Fail-safe operation may be gained for high power applications

Keywords

DC-AC power convertors; PWM invertors; bipolar transistor switches; electric sensing devices; fault diagnosis; fault tolerance; insulated gate bipolar transistors; monitoring; power bipolar transistors; power semiconductor switches; short-circuit currents; switching circuits; IGBT multicell inverter; IGBT stresses; PWM modulator reconfiguration; PWM multicell inverter; commutation failure; failure diagnosis sensor; fault tolerance; high power applications; monitoring sensor; remedial control strategy; remedial strategies; safe stop; short-circuit tolerance; Capacitors; Insulated gate bipolar transistors; Leg; Pulse width modulation; Pulse width modulation inverters; Shape control; Switches; Switching frequency; Topology; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 2000. PESC 00. 2000 IEEE 31st Annual

Conference_Location

Galway

ISSN

0275-9306

Print_ISBN

0-7803-5692-6

Type

conf

DOI

10.1109/PESC.2000.879894

Filename

879894