A MATLAB-based graphical technique for amortization study of adjustable speed drives

Author

Cathey, Jimmie J.

Author_Institution

Dept. of Electr. & Comput. Eng., Kentucky Univ., Lexington, KY, USA

Volume

45

Issue

2

fYear

2002

fDate

5/1/2002 12:00:00 AM

Firstpage

177

Lastpage

181

Abstract

Economic justification of electric drives is the primary reason for many applications. However, the cumbersome trial-and-error calculations necessary to present this aspect often leads to omission of the topic in electric drives courses. This paper presents a MATLAB-based program that generates plots of input power and shaft torque for variable-frequency operation of three-phase induction motors. Based on these graphs, an example is presented illustrating how a cost amortization study for an adjustable speed drive application can be presented with minimal effort and lecture time

Keywords

computer aided instruction; costing; economics; educational courses; electric machine analysis computing; induction motor drives; power engineering education; teaching; variable speed drives; CAI; MATLAB-based graphical technique; adjustable speed drives; amortization study; computer simulation; economic justification; electric drives courses; input power; lecture time; shaft torque; three-phase induction motors; trial-and-error calculations; variable-frequency operation; Computer languages; Equivalent circuits; Frequency; Hysteresis motors; Induction motors; Magnetic cores; Shafts; Synchronous motors; Torque; Variable speed drives;

fLanguage

English

Journal_Title

Education, IEEE Transactions on

Publisher

ieee

ISSN

0018-9359

Type

jour

DOI

10.1109/TE.2002.1013884

Filename

1013884