Partial discharge characteristics of polyimide films used in inverter-fed traction motor under different temperatures
Abstract
In order to evaluate the influences of temperature on partial discharge (PD) properties, a PD testing system with variable test temperature was improved. The PD characteristics of polyimide nanocomposite films used in inverter-fed motors were investigated. The amount, amplitudes, and scatter diagrams of PD pulses which were obtained under different testing temperatures were presented. The results show than most of the PD pulses appear near the rising and falling edge of the continuous square impulse voltage. Some PD pulses are observed during the flat zone of negative semi-period of continuous square impulse voltage. However, PD pulses could hardly appear during the flat zone of positive semi-period. Although the amount and amplitudes of PD pluses decrease gradually with the increase of testing temperature, the life time of polyimide nanocomposite films also reduces.
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Ground current measurement using high frequency current transformer exhibits good performance irrespective of voltage waveform shape but suffers from severe interference due to switching inrush currents.
“Another method is ground current measurement using high frequency current transformer [17]; while this method exhibits good performance irrespective of voltage waveform shape, it suffers from severe interference due to switching inrush currents.”
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Agarwal, R., Li, H., Guo, Z., & Cheetham, P. (2023) · IEEE Transactions on Industrial Electronics · doi:10.1109/tie.2022.3174243 · Cited by 71 · see citing works
“Another method is ground current measurement using high frequency current transformer (HFCT) [17], while this method exhibit good performance irrespective of voltage waveform shape, it suffers from severe interference due to switching inrush currents.”
Method
- Authors
- Luo, Y., Wu, G. N., Jia, P., Liu, J. W., Wang, P., Cao, K. J., & Cui, Y.
- Affiliations
- Southwest Jiaotong University (CN)
- Venue
- 2013 Annual Report Conference on Electrical Insulation and Dielectric Phenomena
- Publisher
- IEEE
- Published
- 2013-10
- Pages
- 809-812
- OpenAlex
- W2044867821
- Cited by
- 4
- References
- 0
- Citations by year
- 2025: 1 · 2024: 1 · 2022: 1 · 2017: 1
- FWCI
- 0.00
- Type
- conference paper
- Language
- en
- Open access
- closed
- Locations
- IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) (publishedVersion)
- Topics
- Physical Sciences › Materials Science › Materials Chemistry › High voltage insulation and dielectric phenomena
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Power Transformer Diagnostics and Insulation
- Physical Sciences › Engineering › Biomedical Engineering › Dielectric materials and actuators
- Keywords
- partial discharge, polyimide nanocomposite films, temperature effects, insulation lifetime
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