Title :
Optimum PWM Waveform Synthesis---A Filtering Approach
Author :
Divan, Deepakraj M.
Author_Institution :
Department of Electrical Engineering, University of Alberta, Edmonton, AB, Canada T6G 2E1.
Abstract :
A fundamentally different approach is proposed for the synthesis of optimum pulsewidth modulated (PWM) waveforms for high-power inverter applications. Conventional optimum PWM waveform synthesis techniques which seek to control harmonic levels in the inverter output directly are seen to be equivalent to a filtering operation. Digital filter structures capable of processing PWM waveforms are examined and waveform synthesis strategies are proposed and verified experimentally. Finally, the design of a high-performance PWM waveform generator is detailed.
Keywords :
Delta modulation; Digital filters; Filtering; Low pass filters; Power harmonic filters; Pulse inverters; Pulse width modulation; Pulse width modulation inverters; Signal processing; Signal synthesis;
Journal_Title :
Industry Applications, IEEE Transactions on
DOI :
10.1109/TIA.1985.349524
