Abstract
Flying capacitor converter is an attractive choice due to its natural voltage balance property. Voltage balance dynamics analytical research methods reported to date are essentially based on a frequency domain analysis. They require high mathematical skills and the solutions are not truly analytical and difficult to use in an everyday practice. In this paper, a straightforward time domain approach based on stitching of consecutive switching intervals analytical solutions is applied to an H-bridge three-level flying capacitor converter. Small parameter analysis yields simple accurate expressions for voltage balance time constants revealing their dependences on load parameters, carrier frequency, and normalized voltage command. Voltage balance dynamics for AC PWM is obtained by averaging DC PWM exponential term decay factors on AC fundamental period.
| Original language | English |
|---|---|
| Title of host publication | 2009 13th European Conference on Power Electronics and Applications, EPE '09 |
| Publication status | Published - 2009 |
| Externally published | Yes |
| Event | 2009 13th European Conference on Power Electronics and Applications, EPE '09 - Barcelona, Spain Duration: Sep 8 2009 → Sep 10 2009 |
Other
| Other | 2009 13th European Conference on Power Electronics and Applications, EPE '09 |
|---|---|
| Country | Spain |
| City | Barcelona |
| Period | 9/8/09 → 9/10/09 |
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Keywords
- Converter circuit
- High voltage power converters
- Modulation strategy
- Multilevel converters
- Pulse Width Modulation (PWM)
ASJC Scopus subject areas
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering
Cite this
Three-level H-bridge flying capacitor converter voltage balance dynamics analysis. / Ruderman, Alex; Reznikov, Boris.
2009 13th European Conference on Power Electronics and Applications, EPE '09. 2009. 5279231.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Three-level H-bridge flying capacitor converter voltage balance dynamics analysis
AU - Ruderman, Alex
AU - Reznikov, Boris
PY - 2009
Y1 - 2009
N2 - Flying capacitor converter is an attractive choice due to its natural voltage balance property. Voltage balance dynamics analytical research methods reported to date are essentially based on a frequency domain analysis. They require high mathematical skills and the solutions are not truly analytical and difficult to use in an everyday practice. In this paper, a straightforward time domain approach based on stitching of consecutive switching intervals analytical solutions is applied to an H-bridge three-level flying capacitor converter. Small parameter analysis yields simple accurate expressions for voltage balance time constants revealing their dependences on load parameters, carrier frequency, and normalized voltage command. Voltage balance dynamics for AC PWM is obtained by averaging DC PWM exponential term decay factors on AC fundamental period.
AB - Flying capacitor converter is an attractive choice due to its natural voltage balance property. Voltage balance dynamics analytical research methods reported to date are essentially based on a frequency domain analysis. They require high mathematical skills and the solutions are not truly analytical and difficult to use in an everyday practice. In this paper, a straightforward time domain approach based on stitching of consecutive switching intervals analytical solutions is applied to an H-bridge three-level flying capacitor converter. Small parameter analysis yields simple accurate expressions for voltage balance time constants revealing their dependences on load parameters, carrier frequency, and normalized voltage command. Voltage balance dynamics for AC PWM is obtained by averaging DC PWM exponential term decay factors on AC fundamental period.
KW - Converter circuit
KW - High voltage power converters
KW - Modulation strategy
KW - Multilevel converters
KW - Pulse Width Modulation (PWM)
UR - http://www.scopus.com/inward/record.url?scp=72949083821&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=72949083821&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:72949083821
SN - 9781424444328
BT - 2009 13th European Conference on Power Electronics and Applications, EPE '09
ER -