A CONTROL STRATEGY FOR PWM INVERTER-INDUCTION MOTOR DRIVE
Date
1985-07
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ORCID
Type
Degree Level
Masters
Abstract
The rapid development of the microprocessor and the software associated with it has contributed significantly towards the modernisation of control systems. The developments in solid state technology have already made it possible for ac induction machines to be considered as alternatives to de machines in adjustable speed applications. Considering the present trend in microprocessor technology, the replacement of solid state controllers by software based controllers is inevitable.
The work reported in this thesis involved the development of a microprocessor based control strategy for a pulse width modulated inverter induction motor drive. The switching sequence for the SCRs of an auxiliary impulse commutated McMurray inverter are described. The development of the control strategy is the highlight of the thesis.
The basic concepts of the control strategy are explained. The - harmonics analysis of the simulated output voltage waveform and the advantages of the' new control strategy over the existing methods are given.
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Degree
Master of Science (M.Sc.)
Department
Electrical Engineering