Simplified model of an inverter-fed induction motor for the analysis of a dc power system

Author

Leedy, A.W. ; Nelms, R.M.

Author_Institution

Dept. of ECE, Auburn Univ., AL, USA

fYear

2004

fDate

2004

Firstpage

275

Lastpage

279

Abstract

The development of a simplified model of an inverter-fed induction motor that can be used in the analysis of a dc power system containing motor drive loads is presented. The model is based on the steady-state T-type equivalent circuit of the induction motor and the input-output relationships of the six-step voltage source inverter. In the simplified model, a V-I load characteristic curve is established that allows the inverter, motor, and load to be replaced by a current-controlled voltage source. The model is verified using PSPICE and Matlab. The simplified model also has the potential to be utilized in the analysis of a multiple bus dc power system by incorporating the V-I load curves of each motor-drive load into a Newton-Raphson iterative procedure.

Keywords

DC motor drives; electric current control; equivalent circuits; induction motor drives; invertors; iterative methods; power systems; current-controlled voltage source; dc power system; inverter-fed induction motor; iterative procedure; motor drive; steady-state T-type equivalent circuit; voltage source inverter; Equivalent circuits; Induction motors; Inverters; Load modeling; Mathematical model; Motor drives; Power system analysis computing; Power system modeling; Steady-state; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

System Theory, 2004. Proceedings of the Thirty-Sixth Southeastern Symposium on

ISSN

0094-2898

Print_ISBN

0-7803-8281-1

Type

conf

DOI

10.1109/SSST.2004.1295663

Filename

1295663