''Dead-band'' PWM switching patterns

被引:36
作者
Agelidis, VG [1 ]
Ziogas, PD [1 ]
Joos, G [1 ]
机构
[1] CONCORDIA UNIV,DEPT ELECT & COMP ENGN,MONTREAL,PQ H3G 1M8,CANADA
关键词
D O I
10.1109/63.506117
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
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 parameters 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.
引用
收藏
页码:522 / 531
页数:10
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