Title :
Variable sampling frequency PWM waveforms
Author :
Kükrer, O. ; Kömürcügil, H.
Author_Institution :
Dept. of Electr. & Electron. Eng., Eastern Mediterranean Univ., Gazimagusa, Turkey
fDate :
3/1/2003 12:00:00 AM
Abstract :
A method for online generation of single-phase near optimal pulse width modulated (PWM) waveforms is described. This method is based on using variable sampling periods in sampled PWM. Simulation results are presented for a single-phase full-bridge inverter feeding a resistive-inductive (R-L) load. Total harmonic distortions of current waveforms are found to be less, compared to PWM with constant sampling period.
Keywords :
PWM invertors; bridge circuits; load (electric); constant sampling period; online generation; resistive-inductive load; sampled PWM; single-phase full-bridge inverter; single-phase near optimal pulse width modulated waveforms; total harmonic distortion; variable sampling frequency PWM waveforms; variable sampling periods; Equations; Frequency modulation; Hysteresis; Pulse generation; Pulse width modulation; Pulse width modulation inverters; Sampling methods; Space vector pulse width modulation; Total harmonic distortion; Voltage;
Journal_Title :
Power Electronics Letters, IEEE
DOI :
10.1109/LPEL.2003.816000
