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Comparison between two different methods of calculation of switching time which is used for implementation of SVPWM using DSP

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3 Author(s)
A. Fyntanakis ; Democritus University of Thrace, 12 Basil. Sofias, 67100, Xanthi, Greece ; G. Adamidis ; Z. Koutsogiannis

This paper introduces the control of a squirrel cage induction motor which is fed from an inverter. The inverter is driven using the method SVPWM. The central processing unit during the development must be very fast in order to give the pulses in appropriate time into the gates of power semiconductors, compatible in EMI, cheap, with big flash memory. The consumer power electronics, which are used for motor drive, must be reliable and cheap. The central processing unit which is selected in consumer power electronics is cheap with small flash memory in order to reduce the cost of implementation. In this paper is tried to be done a code for a DSP, which can be contained in very small flash memory of a DSP in order to drive an induction motor with very good performance. The new method which is presented in this paper is compared with the classical SVPWM with look up tables. The practical results of these methods are represented and compared.

Published in:

Electrical Machines, 2008. ICEM 2008. 18th International Conference on

Date of Conference:

6-9 Sept. 2008