Title :
A unified approach to the real-time implementation of microprocessor-based PWM waveforms
Author :
Vadivel, S. ; Bhuvaneswari, G. ; Rao, G. Sridhara
Author_Institution :
Dept. of Electr. Eng., Indian Inst. of Technol., Madras, India
fDate :
10/1/1991 12:00:00 AM
Abstract :
A method for real-time implementation of any two-level three-phase pulse-width-modulator (PWM) invertor waveform is discussed. The hardware and software of the scheme are built around the 16 b 8086 microprocessor and its peripherals, with a few additional digital ICs. The suggested scheme realizes the PWM waveforms without harmonic distortion. The implementation procedure is a universal one and it generates in real time any two-level three-phase PWM waveform with the chosen hardware structure. There is no need for hardware alteration for realization of different types of PWM waveforms
Keywords :
digital control; invertors; microcomputer applications; pulse width modulation; real-time systems; switching; 16 bit; 8086 microprocessor; PWM waveforms; digital ICs; hardware; invertors; real-time; software; switching; three-phase; Digital integrated circuits; Frequency; Hardware; Harmonic distortion; Microprocessors; Phase modulation; Pulse width modulation; Pulse width modulation inverters; Variable speed drives; Voltage control;
Journal_Title :
Power Electronics, IEEE Transactions on
