Referenced Items are not available for this document.
Special switching sequences can be employed in space-vector-based generation of pulsewidth-modulated (PWM) waveforms for voltage-source inverters. These sequences involve switching a phase twice, switching the second phase once, and clamping the third phase in a subcycle. Advanced bus-clamping PWM (ABCPWM) techniques have been proposed recently that employ such switching sequences. This letter studies the spectral properties of the waveforms produced by these PWM techniques. Further, analytical closed-form expressions are derived for the total rms harmonic distortion due to these techniques. It is shown that the ABCPWM techniques lead to lower distortion than conventional space vector PWM and discontinuous PWM at higher modulation indexes. The findings are validated on a 2.2-kW constant V/f induction motor drive and also on a 100-kW motor drive.
Published in:
Power Electronics, IEEE Transactions on
(Volume:24
,
Issue:
10
)
Date of Publication: Oct. 2009
- Page(s):
- 2347 - 2352
- ISSN :
- 0885-8993
- INSPEC Accession Number:
- 10878405
- Digital Object Identifier :
- 10.1109/TPEL.2009.2013492
- Product Type:
- Journals & Magazines
- Date of Publication :
- 11 August 2009
- Date of Current Version :
- 15 September 2009
- Issue Date :
- Oct. 2009
- Sponsored by :
- IEEE Power Electronics Society
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