Reduced order models for induction motors with two rotor circuits

Author

Richards, G. ; Sarma, P.R.R.

Author_Institution

Dept. of Electr. Eng., New Orleans Univ., LA, USA

Volume

9

Issue

4

fYear

1994

fDate

12/1/1994 12:00:00 AM

Firstpage

673

Lastpage

678

Abstract

Induction motor behavior is commonly simulated by a fifth order differential equation model which includes two stator state variables, two rotor state variables, and shaft speed. Normally two more variables must be added to account for the effects of a second rotor circuit representing deep bars, a starting cage, or rotor distributed parameters. This paper presents a technique for including the effects of a second rotor circuit without adding more state variables to the fifth order model. Transient, as well as steady state effects are included. The model may be useful in cases where switching introduces transient torques and losses that are invisible to the fifth order model, and it is not desirable to expand the model to include two more state variables. A laboratory test is included

Keywords

differential equations; induction motors; losses; machine theory; power system transients; rotors; stators; torque; transient analysis; deep bars; fifth order differential equation model; induction motors; laboratory test; losses; reduced order models; rotor distributed parameters; shaft speed; starting cage; state variables; steady state effects; switching; transient effects; transient torques; two rotor circuits; Bars; Circuit simulation; Differential equations; Induction motors; Laboratories; Reduced order systems; Rotors; Shafts; Stators; Steady-state;

fLanguage

English

Journal_Title

Energy Conversion, IEEE Transactions on

Publisher

ieee

ISSN

0885-8969

Type

jour

DOI

10.1109/60.368342

Filename

368342