The analysis and compensation of dead-time effects in PWM inverters

The analysis and compensation of dead-time effects in PWM inverters

The quantitative prediction of the dead-time effect in pulse width modulated (PWM) inverters is addressed. Through analysis and simulation it is shown that the effect results in a decrease of the fundamental component and an increase in the low-order harmonics in the output voltage of the inverter....

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Veröffentlicht in:IEEE transactions on industrial electronics (1982) 1991-04, Vol.38 (2), p.108-114
Hauptverfasser: Jeong, Seung-Gi, Park, Min-Ho
Format: Artikel
Sprache:eng
Schlagworte:
Analytical models
Applied sciences
Delay effects
Electrical engineering. Electrical power engineering
Exact sciences and technology
Harmonic analysis
Leg
Power electronics, power supplies
Pulse inverters
Pulse width modulation
Pulse width modulation inverters
Switches
Switching circuits
Switching frequency
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Beschreibung
Zusammenfassung:The quantitative prediction of the dead-time effect in pulse width modulated (PWM) inverters is addressed. Through analysis and simulation it is shown that the effect results in a decrease of the fundamental component and an increase in the low-order harmonics in the output voltage of the inverter. To compensate the effect, two simple methods, which are adequate for sinusoidal PWM and memory-based PWM, respectively, are presented. Experimental results show the validity of the analysis and the usefulness of the compensation methods.< >
ISSN:0278-0046
1557-9948
DOI:10.1109/41.88903