Details
| Original language | English |
|---|---|
| Pages (from-to) | 997-1002 |
| Number of pages | 6 |
| Journal | IEEE Transactions on Dielectrics and Electrical Insulation |
| Volume | 31 |
| Issue number | 2 |
| Early online date | 5 Jan 2024 |
| Publication status | Published - Apr 2024 |
Abstract
With growing advances in semiconductor technologies and the introduction of new topologies in power networks, the implementation of power converters has dramatically increased. Such variations may impose additional electrical stresses and lead to failures in insulation systems. In this regard, understanding the behavior of insulation is of paramount importance. Conventionally, spectroscopy of insulations is performed under sinusoidal voltage waveforms, while there are certain conditions where the insulation is subjected to a non-sinusoidal voltage waveform with a possible DC bias. A good example of this situation could be the bus capacitor of power converters, where the capacitor on the DC voltage side provides a low-impedance loop for current ripple originating from the converter topology or load behavior. In this paper, the complex permittivity of the insulation was extracted under DC-biased sinusoidal and non-sinusoidal voltage waveforms. The challenges associated with such measurements have been addressed, and finally, the results over a typical sample are presented and discussed.
Keywords
- bus capacitor, Capacitors, Current measurement, dielectric spectroscopy, Dielectrics, Impedance, Insulation, Permittivity measurement, ripple voltage, variable speed drives, Voltage measurement, Bus capacitor
ASJC Scopus subject areas
- Engineering(all)
- Electrical and Electronic Engineering
Cite this
- Standard
- Harvard
- Apa
- Vancouver
- BibTeX
- RIS
In: IEEE Transactions on Dielectrics and Electrical Insulation, Vol. 31, No. 2, 04.2024, p. 997-1002.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - On Investigating the Effect of DC Biased Ripple Voltages over the Insulation of Bus Capacitor of Power Inverters
T2 - Possibility and Limitations
AU - Sargazi, Reza
AU - Werle, Peter
AU - Akbari, Asghar
AU - Apelsmeier, Andreas
PY - 2024/4
Y1 - 2024/4
N2 - With growing advances in semiconductor technologies and the introduction of new topologies in power networks, the implementation of power converters has dramatically increased. Such variations may impose additional electrical stresses and lead to failures in insulation systems. In this regard, understanding the behavior of insulation is of paramount importance. Conventionally, spectroscopy of insulations is performed under sinusoidal voltage waveforms, while there are certain conditions where the insulation is subjected to a non-sinusoidal voltage waveform with a possible DC bias. A good example of this situation could be the bus capacitor of power converters, where the capacitor on the DC voltage side provides a low-impedance loop for current ripple originating from the converter topology or load behavior. In this paper, the complex permittivity of the insulation was extracted under DC-biased sinusoidal and non-sinusoidal voltage waveforms. The challenges associated with such measurements have been addressed, and finally, the results over a typical sample are presented and discussed.
AB - With growing advances in semiconductor technologies and the introduction of new topologies in power networks, the implementation of power converters has dramatically increased. Such variations may impose additional electrical stresses and lead to failures in insulation systems. In this regard, understanding the behavior of insulation is of paramount importance. Conventionally, spectroscopy of insulations is performed under sinusoidal voltage waveforms, while there are certain conditions where the insulation is subjected to a non-sinusoidal voltage waveform with a possible DC bias. A good example of this situation could be the bus capacitor of power converters, where the capacitor on the DC voltage side provides a low-impedance loop for current ripple originating from the converter topology or load behavior. In this paper, the complex permittivity of the insulation was extracted under DC-biased sinusoidal and non-sinusoidal voltage waveforms. The challenges associated with such measurements have been addressed, and finally, the results over a typical sample are presented and discussed.
KW - bus capacitor
KW - Capacitors
KW - Current measurement
KW - dielectric spectroscopy
KW - Dielectrics
KW - Impedance
KW - Insulation
KW - Permittivity measurement
KW - ripple voltage
KW - variable speed drives
KW - Voltage measurement
KW - Bus capacitor
UR - http://www.scopus.com/inward/record.url?scp=85182374887&partnerID=8YFLogxK
U2 - 10.1109/TDEI.2024.3350548
DO - 10.1109/TDEI.2024.3350548
M3 - Article
AN - SCOPUS:85182374887
VL - 31
SP - 997
EP - 1002
JO - IEEE Transactions on Dielectrics and Electrical Insulation
JF - IEEE Transactions on Dielectrics and Electrical Insulation
SN - 1070-9878
IS - 2
ER -