Details
| Original language | English |
|---|---|
| Title of host publication | 39th IEEE Annual Power Electronics Specialists Conference |
| Subtitle of host publication | PESC '08 |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 1033-1040 |
| Number of pages | 8 |
| ISBN (print) | 978-1-4244-1667-7 |
| Publication status | Published - 2008 |
| Event | PESC '08 - 39th IEEE Annual Power Electronics Specialists Conference - Rhodes, Greece Duration: 15 Jun 2008 → 19 Jun 2008 |
Publication series
| Name | PESC Record - IEEE Annual Power Electronics Specialists Conference |
|---|---|
| ISSN (Print) | 0275-9306 |
Abstract
To meet the increasing demand on very low switching frequencies of power semiconductors in order to reduce switching losses, synchronous optimal pulsewidth modulation (SO-PWM) techniques provide an appropriate solution. They result from offline calculations, assuming steady state operation of the drive system. These drives are often used with an LC output filter, which represents a resonant circuit. Therefore, only in steady state operations does the combination of an LC-filter with offline optimized pulse patterns deliver satisfactory behavior of the drive system. Changes in operating conditions cause weakly damped oscillations in the filter, followed by high overcurrents in the motor, which can be described as dynamic modulation errors. In this paper, a novel control method is proposed in order to keep the benefits of SO-PWM in dynamic operations when applied to drives with LC-filters. The method actively damps the LC-filter resonance and compensates the dynamic modulation errors without increasing the switching frequency. The effectiveness and dynamic capability of the introduced control technique are presented by simulation results of a 2.4 kV induction motor drive.
Keywords
- Dynamic modulation error control, LC-filter, Medium voltage drive, Synchronous optimal modulation, Three-level voltage source inverter
ASJC Scopus subject areas
- Mathematics(all)
- Modelling and Simulation
- Physics and Astronomy(all)
- Condensed Matter Physics
- Energy(all)
- Energy Engineering and Power Technology
- Engineering(all)
- Electrical and Electronic Engineering
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39th IEEE Annual Power Electronics Specialists Conference : PESC '08. Institute of Electrical and Electronics Engineers Inc., 2008. p. 1033-1040 4592066 (PESC Record - IEEE Annual Power Electronics Specialists Conference).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Active Damping of LC-Filters for High Power Drives using Synchronous Optimal Pulsewidth Modulation
AU - Laczynski, T.
AU - Werner, T.
AU - Mertens, A.
PY - 2008
Y1 - 2008
N2 - To meet the increasing demand on very low switching frequencies of power semiconductors in order to reduce switching losses, synchronous optimal pulsewidth modulation (SO-PWM) techniques provide an appropriate solution. They result from offline calculations, assuming steady state operation of the drive system. These drives are often used with an LC output filter, which represents a resonant circuit. Therefore, only in steady state operations does the combination of an LC-filter with offline optimized pulse patterns deliver satisfactory behavior of the drive system. Changes in operating conditions cause weakly damped oscillations in the filter, followed by high overcurrents in the motor, which can be described as dynamic modulation errors. In this paper, a novel control method is proposed in order to keep the benefits of SO-PWM in dynamic operations when applied to drives with LC-filters. The method actively damps the LC-filter resonance and compensates the dynamic modulation errors without increasing the switching frequency. The effectiveness and dynamic capability of the introduced control technique are presented by simulation results of a 2.4 kV induction motor drive.
AB - To meet the increasing demand on very low switching frequencies of power semiconductors in order to reduce switching losses, synchronous optimal pulsewidth modulation (SO-PWM) techniques provide an appropriate solution. They result from offline calculations, assuming steady state operation of the drive system. These drives are often used with an LC output filter, which represents a resonant circuit. Therefore, only in steady state operations does the combination of an LC-filter with offline optimized pulse patterns deliver satisfactory behavior of the drive system. Changes in operating conditions cause weakly damped oscillations in the filter, followed by high overcurrents in the motor, which can be described as dynamic modulation errors. In this paper, a novel control method is proposed in order to keep the benefits of SO-PWM in dynamic operations when applied to drives with LC-filters. The method actively damps the LC-filter resonance and compensates the dynamic modulation errors without increasing the switching frequency. The effectiveness and dynamic capability of the introduced control technique are presented by simulation results of a 2.4 kV induction motor drive.
KW - Dynamic modulation error control
KW - LC-filter
KW - Medium voltage drive
KW - Synchronous optimal modulation
KW - Three-level voltage source inverter
UR - http://www.scopus.com/inward/record.url?scp=52349105287&partnerID=8YFLogxK
U2 - 10.1109/PESC.2008.4592066
DO - 10.1109/PESC.2008.4592066
M3 - Conference contribution
AN - SCOPUS:52349105287
SN - 978-1-4244-1667-7
T3 - PESC Record - IEEE Annual Power Electronics Specialists Conference
SP - 1033
EP - 1040
BT - 39th IEEE Annual Power Electronics Specialists Conference
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - PESC '08 - 39th IEEE Annual Power Electronics Specialists Conference
Y2 - 15 June 2008 through 19 June 2008
ER -