Details
| Original language | English |
|---|---|
| Title of host publication | IECON 2010 |
| Subtitle of host publication | 36th Annual Conference of the IEEE Industrial Electronics Society |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 613-618 |
| Number of pages | 6 |
| ISBN (print) | 978-1-4244-5225-5 |
| Publication status | Published - 2010 |
| Event | 36th Annual Conference of the IEEE Industrial Electronics Society, IECON 2010 - Glendale, AZ, United States Duration: 7 Nov 2010 → 10 Nov 2010 |
Publication series
| Name | IECON Proceedings (Industrial Electronics Conference) |
|---|
Abstract
This paper presents an improved PWM strategy for three-phase inverters, especially suited for use at low ratios of switching frequency to fundamental output frequency. The method of third-harmonic injection is used to ensure maximum utilisation of the DC bus voltage. Implementation issues for the new modulation strategy are discussed. A comparison with a conventional, regularly sampled PWM is presented, based on simulation and experiment. The advantage of the new modulation strategy is evident in the frequency band from zero to half the switching frequency. While distortion below half the switching frequency exists in conventional PWM due to intermodulation, the new modulation strategy can completely avoid any distortion below half the switching frequency, even at low switching frequency. The minimum switching frequency is in the range of twelve times the output frequency, which is only four times the frequency of the injected third harmonic.
ASJC Scopus subject areas
- Engineering(all)
- Control and Systems Engineering
- Engineering(all)
- Electrical and Electronic Engineering
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IECON 2010: 36th Annual Conference of the IEEE Industrial Electronics Society. Institute of Electrical and Electronics Engineers Inc., 2010. p. 613-618 5675215 (IECON Proceedings (Industrial Electronics Conference)).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Novel PWM Modulation Strategy for 3-phase Inverters with Reduced Distortion at Low Switching Frequency
AU - Rüger, N. E.
AU - Schnick, O.
AU - Mathis, W.
AU - Mertens, A.
PY - 2010
Y1 - 2010
N2 - This paper presents an improved PWM strategy for three-phase inverters, especially suited for use at low ratios of switching frequency to fundamental output frequency. The method of third-harmonic injection is used to ensure maximum utilisation of the DC bus voltage. Implementation issues for the new modulation strategy are discussed. A comparison with a conventional, regularly sampled PWM is presented, based on simulation and experiment. The advantage of the new modulation strategy is evident in the frequency band from zero to half the switching frequency. While distortion below half the switching frequency exists in conventional PWM due to intermodulation, the new modulation strategy can completely avoid any distortion below half the switching frequency, even at low switching frequency. The minimum switching frequency is in the range of twelve times the output frequency, which is only four times the frequency of the injected third harmonic.
AB - This paper presents an improved PWM strategy for three-phase inverters, especially suited for use at low ratios of switching frequency to fundamental output frequency. The method of third-harmonic injection is used to ensure maximum utilisation of the DC bus voltage. Implementation issues for the new modulation strategy are discussed. A comparison with a conventional, regularly sampled PWM is presented, based on simulation and experiment. The advantage of the new modulation strategy is evident in the frequency band from zero to half the switching frequency. While distortion below half the switching frequency exists in conventional PWM due to intermodulation, the new modulation strategy can completely avoid any distortion below half the switching frequency, even at low switching frequency. The minimum switching frequency is in the range of twelve times the output frequency, which is only four times the frequency of the injected third harmonic.
UR - http://www.scopus.com/inward/record.url?scp=78751477162&partnerID=8YFLogxK
U2 - 10.1109/IECON.2010.5675215
DO - 10.1109/IECON.2010.5675215
M3 - Conference contribution
AN - SCOPUS:78751477162
SN - 978-1-4244-5225-5
T3 - IECON Proceedings (Industrial Electronics Conference)
SP - 613
EP - 618
BT - IECON 2010
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 36th Annual Conference of the IEEE Industrial Electronics Society, IECON 2010
Y2 - 7 November 2010 through 10 November 2010
ER -