An induction motor drive system with improved fault tolerance

Author

Correa, M.B.de R. ; Jacobina, C.B. ; da Silva, E.R.C. ; Lima, A.M.N.

Author_Institution

CEFET-AL UNED, Campina Grande, Brazil

Volume

4

fYear

2000

fDate

36800

Firstpage

2071

Abstract

This paper investigates the utilization of a low cost topology that permits the fault-tolerant operation of a three-phase induction motor drive system. When one of the inverter legs is lost, the machine can operate with only two stator windings by connecting the machine neutral either to the middle point of a capacitor bank or to a fourth converter leg. The structure proposed and the operation principle of the system are presented. The machine model corresponding to the asymmetric two-windings machine is developed and a suitable controller is proposed. Experimental results are presented

Keywords

capacitor storage; fault tolerance; induction motor drives; invertors; stators; asymmetric two-windings machine; capacitor bank; converter leg; fault tolerance; induction motor drive; low cost topology; machine model; machine neutral connection; stator windings; three-phase induction motor drive; Capacitors; Control systems; Equations; Fault tolerant systems; Induction motor drives; Inverters; Jacobian matrices; Joining processes; Leg; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 2000. Conference Record of the 2000 IEEE

Conference_Location

Rome

ISSN

0197-2618

Print_ISBN

0-7803-6401-5

Type

conf

DOI

10.1109/IAS.2000.883112

Filename

883112