Predictive monitoring of turn-on-turn insulation in single tooth coils
Författare
Summary, in English
This work focuses on the investigation on both local and global dielectric properties for a random wound single tooth winding, which represents a segment of the in-field electrical machine used on an Hybrid Wheel Loader. Finite Element Analysis (FEA) is used to predict the temperature stress while loading and illustrate the influences of dielectric properties (i.e. conductivity and dielectric constant) on the global dielectric properties (i.e. dielectric resistance and capacitance). Based on the thermal simulation, dielectric response measurements are performed in the most thermally stressed region, which is between two randomly grouped winding strands. Both DC and AC dielectric characteristics are measured and analyzed, which provide a good insight to understand 1) the dielectric response 2) temperature dependent dielectric properties for strand to strand insulation. This provides a great foundation for the future work on stator winding degradation.
Avdelning/ar
Publiceringsår
2015
Språk
Engelska
Publikation/Tidskrift/Serie
2015 IEEE 10th International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives (SDEMPED)
Fulltext
Dokumenttyp
Konferensbidrag
Förlag
IEEE - Institute of Electrical and Electronics Engineers Inc.
Ämne
- Electrical Engineering, Electronic Engineering, Information Engineering
Nyckelord
- Leakage Current Measurement
- Impedence Spectroscopy.
- Equivalent Circuit
- FEA Simulation
- Dielectric Properties
- Dielectric Response
- Winding Insulation
- Intermittent Load
- Thermal Stress
Conference name
International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives (SDEMPED)
Conference date
2015-09-01
Conference place
Guarda, Portugal
Status
Published
ISBN/ISSN/Övrigt
- ISBN: 978-1-4799-7743-7