Abstract
This thesis presents the implementation of a controller for pulse width modulated voltage-source inversion using a Texas Instruments'TMS32OC30 floatingpoint digital signal processor. The designed controller provides the, user with quasi-real-time signal quality measurements, feedback control and the option to modify system parameters through the use of a computer. The criteria considered in the design of the controller are output harmonic distortion, modulation index, amplitude index, operating-frequency and switching speed. Two methods of switching point synthesis are implemented: sine-triangle modulation and harmonic injection for three-phase systems. The amplitude index is constrained to values between zero and one thus operating the inverter in its linear region. Feedback control is used to dynamically compensate for the effect of non-linear and unbalanced loads and to reduce total harmonic distortion to a minimum. Obtained results indicate the merit and effectiveness of the design in providing a low distortion waveform using- different switching methods and under different load conditions.
Mitrani, Michael (1994). Real-time control of PWM voltage source inverters using the TMS320C30 digital signal processing microprocessor. Master's thesis, Texas A&M University. Available electronically from
https : / /hdl .handle .net /1969 .1 /ETD -TAMU -1994 -THESIS -M684.