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

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1 Author(s)
J. J. Cathey ; Dept. of Electr. & Comput. Eng., Kentucky Univ., Lexington, KY, USA

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

Published in:

IEEE Transactions on Education  (Volume:45 ,  Issue: 2 )