``Dead-band`` PWM switching patterns

Journal Article · Mon Jul 01 04:00:00 EDT 1996 · IEEE Transactions on Power Electronics

DOI:https://doi.org/10.1109/63.506117· OSTI ID:276220

Agelidis, V G; Ziogas, P D; Joos, G ^[1]

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1. Concordia, Univ., Montreal, Quebec (Canada). Dept. of Electrical and Computer Engineering

Reference/modulating waveform continuity is not a necessary condition for the implementation of switching patterns for three-phase pulse-width modulated (PWM) converters if the load or the source are Y-connected. This is based on the fact that the converter phase-voltages do not need to be sinusoidal and switching pattern discontinuities--dead-bands--do not degrade the quality of output/input voltage/current waveforms by introducing low-order harmonics if certain parameter are optimized. This paper discusses general characteristics of various discontinuous switching patterns for PWM converters and shows that they can yield better performance than their continuous counterparts in some operating regions. Performance is defined as harmonic distortion normalized with respect to effective switching frequency and serves as a measure of comparison with continuous PWM techniques. The applications considered include general purpose and application specific solid-state power supplies using voltage source inverters and PWM rectifiers. Theoretical considerations are verified on an experimental unit.

• OSTI ID: 276220
• Journal Information: IEEE Transactions on Power Electronics, Journal Name: IEEE Transactions on Power Electronics Journal Issue: 4 Vol. 11; ISSN ITPEE8; ISSN 0885-8993
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
DESIGN
ELECTRIC POWER
INVERTERS
PERFORMANCE
POWER SUPPLIES
QUALITY CONTROL