Compensation of Switch Faults in a Three-Level Inverter

Author

Da Silva, Edison R C ; De O, Antônio S., Jr. ; Jacobina, Cursino B. ; Ribeiro, Ricardo L. ; Melo, Liviane C A ; Razik, Hubert

Author_Institution

DEE/CEEI, Univ. Fed. de Campina Grande, Campina Grande

fYear

2008

fDate

5-9 Oct. 2008

Firstpage

1

Lastpage

6

Abstract

This paper deals with open switch faults in a three-level inverter feeding a three-phase induction motor. It also investigates the fault compensation via topologies that are able to maintain the system operation for a period of time. With the proposed techniques it is possible to detect and identify the power switch in which the fault has occurred. Such detection requires the measurement of some voltages Differently from other schemes the proposed one allows, in some cases, full utilization of the dc-link. Simulated and experimental results verify the feasibility of proposed strategies. The results obtained so far indicate that it is possible to embed some fault-tolerant properties for the voltage-fed asynchronous machine drive system.

Keywords

fault diagnosis; induction motor drives; invertors; network topology; fault compensation; fault-tolerant properties; power switch; switch faults; three-level inverter; three-phase induction motor; voltage-fed asynchronous machine drive system; Capacitors; Circuit faults; Fault detection; Fault tolerance; Inverters; Jacobian matrices; Leg; Switches; Topology; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Society Annual Meeting, 2008. IAS '08. IEEE

Conference_Location

Edmonton, Alta.

ISSN

0197-2618

Print_ISBN

978-1-4244-2278-4

Electronic_ISBN

0197-2618

Type

conf

DOI

10.1109/08IAS.2008.285

Filename

4659073