A PWM method for reduction of switching loss in a full-bridge inverter

A PWM method for reduction of switching loss in a full-bridge inverter

This paper presents the "hybrid pulsewidth modulation" (HPWM) method which requires only two of the four switches in a full-bridge inverter to be pulsewidth-modulated at high frequency, thus significantly reducing the switching losses in the other two switches. For triangular carriers, HPW...

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Veröffentlicht in:IEEE transactions on power electronics 1995-05, Vol.10 (3), p.326-332
Hauptverfasser: Ray-Shyang Lai, Ngo, K.D.T.
Format: Artikel
Sprache:eng
Schlagworte:
Active filters
Applied sciences
Electrical engineering
Electrical engineering. Electrical power engineering
Electrical equipment
Electronics
Exact sciences and technology
Frequency modulation
Power electronics, power supplies
Power harmonic filters
Pulse inverters
Pulse width modulation
Pulse width modulation inverters
Switches
Switching frequency
Switching loss
Voltage
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Beschreibung
Zusammenfassung:This paper presents the "hybrid pulsewidth modulation" (HPWM) method which requires only two of the four switches in a full-bridge inverter to be pulsewidth-modulated at high frequency, thus significantly reducing the switching losses in the other two switches. For triangular carriers, HPWM has the same frequency spectrum and switching losses as the conventional unipolar PWM (UPWM). A low-frequency model for a fast-switching HPWM full-bridge inverter with high-quality output is described, and is substantiated by experimental data.< >
ISSN:0885-8993
1941-0107
DOI:10.1109/63.387998