Title :
An induction motor drive system with improved fault tolerance
Author :
De Rossiter Corrêa, Maurício Beltrão ; Jacobina, Cursino Brandão ; Da Silva, Edison Roberto Cabral ; Lima, Antonio Marcus Nogueira
Author_Institution :
Dept. de Engenharia Eletrica, Univ. Federal da Paraiba, Joao Pessoa, Brazil
Abstract :
This paper investigates the utilization of a simplified 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 to a fourth converter leg. The structure 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 :
DC-AC power convertors; control system analysis; control system synthesis; electric current control; fault tolerance; induction motor drives; invertors; machine control; machine testing; machine theory; stators; asymmetric two-windings machine; digital current control; fault tolerance improvement; fault-tolerant operation; inverter legs; machine model; machine neutral; operation principle; stator windings; structure; three-phase induction motor drive system; Current control; Equations; Fault tolerant systems; Induction motor drives; Industry Applications Society; Inverters; Jacobian matrices; Joining processes; Leg; Thyristors;
Journal_Title :
Industry Applications, IEEE Transactions on
