Title :
Microprocessor-implemented SPWM for multiconverters with phase-shifted triangle carriers
Author :
Mwinyiwiwa, Bakari ; Wolanski, Zbigniew ; Ooi, Boon-Teck
Author_Institution :
Dept. of Electr. Eng., Univ. of Dar Es Salaam, Tanzania
Abstract :
This paper reports on research aimed at achieving computer control of power electronic converters for high-power applications. Hitherto, in motor-drives applications, the 4-Timer Method has been adequate in approximating the sinusoidal pulsewidth modulation (SPWM) strategy for microprocessor control. This paper shows that the ideas of the 4-Timer Method can be extended, with modifications, to the multimodule arrays of converters which will be required to meet high megavoltampere ratings. Simulation and experimental results have shown that the resultant 7-Timer Method can implement the linear SPWM strategy for multiconverters
Keywords :
PWM power convertors; digital signal processing chips; flexible AC transmission systems; microcomputer applications; phase shifters; 4-Timer Method; 7-Timer Method; SPWM; computer control; digital signal processor; field programmable gate array; flexible AC transmission systems; high megavoltampere ratings; high-power applications; linear SPWM strategy; microprocessor control; motor-drives; multimodule converter arrays; phase-shifted triangle carriers; phaseshifted multiconverters; power electronic converters; sinusoidal pulsewidth modulation; Capacitors; Control systems; Flexible AC transmission systems; Phased arrays; Pulse modulation; Solid state circuits; Space vector pulse width modulation; Switches; Switching converters; Voltage;
Journal_Title :
Industry Applications, IEEE Transactions on
