On observability and controllability of faulty induction machines

Author

Stocks, Mikael ; Medvedev, Alexander

Author_Institution

Syst. & Interaction, Lulea Univ. of Technol.

fYear

2006

fDate

14-16 June 2006

Abstract

In this paper an analysis of observability and controllability of the electrical part of faulty (non-symmetric) induction machines (IMs) is performed. A two-axis model of healthy or faulty IM is studied and the conditions under which it does not degenerate to a descriptor system are obtained. When degeneration does not occur and stator voltages, stator currents and the rotational angle/speed of the rotor are measured, a fault in the IM does not, in general, render the motor neither unobservable nor uncontrollable. However, it turns out that when the rotor resistance is very small, problems with observability and controllability still may arise

Keywords

asynchronous machines; electric current control; electrical faults; machine control; matrix algebra; rotors; velocity control; voltage control; faulty induction machines; induction machine controllability; induction machine observability; rotor rotational angle; rotor rotational speed; stator currents; stator voltages; Controllability; Current measurement; Electrical resistance measurement; Induction machines; Observability; Performance analysis; Rotation measurement; Rotors; Stators; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

American Control Conference, 2006

Conference_Location

Minneapolis, MN

Print_ISBN

1-4244-0209-3

Electronic_ISBN

1-4244-0209-3

Type

conf

DOI

10.1109/ACC.2006.1657411

Filename

1657411