الفهرس 
INTRODUTIONOnly 14 pages are availabe for public view
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Abstract
Programmed harmonic elimination pulse-width-modulated inverter is presented to eliminate selected harmonic orders and control the fundamental component of the output voltage ’of the inverter. heretical techniques of harmonic elimination and voltage control for the half-bridge and full-bridge inverters are derived. Steady-State performance of the induction motor supplied with this voltage waveform is presented. This thesis has five chapters and two appendices, the chapters can be summarized as follows.:
CH.. 1 : An introduction which includes a review of different types of pulse-width¬-modulated inverter.
CH 2: Generalized methods are developed for. eliminating a fixed number of harmonics in the half-bridge and full-bridge inverter-output waveform. Numerical techniques are applied to solve the nonlinear equations of the problem aided with . some computer programs in order to eliminate a fixed number of harmonic orders for bpth half-bridge and full-bridge inverter.
CH 3 : Theoretical techniques of maximization of the fundamental component of
the output voltage waveform for half-bridge and full-bridge inverter is derived.
. Voltage .control techniques are derived. whereby harmonic elimination is possible in variable-voltage variable-frequency inverter. Computer programs for fundamental maximization and voltage control in half-bridge and full-bridge inverter are prepared.
CH 4 : Programmed PC-based pulse-width modulator is described. Modes of realization, microcomputer operation and hardware modulation organization are presented.
CH 5 t Analytical investigation on steady-state performance of induction motor driven by PWM inverter is presented. It is based on the Fourier analysis of the impressed voltage waveform. Single-phase equivalent circuits for fundamental component and harmonics are derived. A method of estimating ~e magnitude of torque fluctuations under steady-state operation conditions based on single-phase equivalent circuits are derived. Computer programs are written to calculate and plot stator current and torque fluctuations waveforms and the efficiency at different percentage load.