Influence of conductive particle contaminationon the insulation system of rotating electrical machines with direct oil cooling

• Autorzy: Yang Liguo , Pauli Florian , Zhang Shimin , Hambrecht Fabian , Hameyer Kay

Identyfikatory

DOI

10.24425/aee.2022.141685

• Języki publikacji: EN

Abstrakty

EN

An integration of the electrical machine and the gearbox is attracting particular attention for the design of modern electric and hybrid drive trains, since it saves overall space and subsequently increases the power density. Another benefit of a high level of integration is that it enables a combined application of oils as both cooling fluid for the electrical machine and as lubrication fluid for the transmission system. In this way, the power density of the integrated drive train can be further increased. During the oil cycling, conductive contaminations may be introduced and subsequently have an influence on the function of the insulation system of the electrical machine. In the present work, the influences of the cooling oil and its conductive contaminations, conductive particles as well as their combination with humidity, on the electrical and dielectric properties of the insulation system are studied. The results show that by application of the cooling oil, the partial discharge inception voltage (PDIV) of the winding insulation increases significantly so that an electrical breakdown is prone to happen before a partial discharge (PD) occurs. With increasing particle contamination, the PDIV of the insulation system decreases significantly, while the capacitance increases. Besides, conductive particles and humidity decrease the surface resistance and surface breakdown voltage of the insulation papers significantly. The results indicate that the conductive particle contaminations can play an important role for the electrical degradation of the insulation system.

Słowa kluczowe

EN

cooling; insulation system; particle contamination; partial discharge; surface resistance

• Wydawca: Polish Academy of Sciences, Committee on Electrical Engineering
• Czasopismo: Archives of Electrical Engineering
• Rocznik: 2022
• Tom: Vol. 71, nr 3
• Strony: 789--804
• Opis fizyczny: Bibliogr. 24 poz., rys., tab.

Twórcy

autor

Yang Liguo

• Institute of Electrical Machines (IEM), RWTH Aachen University, Aachen, Germany

• https://orcid.org/0000-0001-5746-7486

autor

Pauli Florian

• Institute of Electrical Machines (IEM), RWTH Aachen University, Aachen, Germany

autor

Zhang Shimin

• Lubricant Division, TotalEnergies One Tech Solaize, France

autor

Hambrecht Fabian

• Institute of Electrical Machines (IEM), RWTH Aachen University, Aachen, Germany

autor

Hameyer Kay

• Institute of Electrical Machines (IEM), RWTH Aachen University, Aachen, Germany

Bibliografia

• [1] Lehmann R., Petuchow A., Moullion M., Künzler M., Windel C., Gauterin F., Fluid Choice Based on Thermal Model and Performance Testing for Direct Cooled Electric Drive, Energies, vol. 13, no. 22, 5867 (2020), DOI: 10.3390/en13225867.
• [2] Popescu M., Staton D.A., Boglietti A., Cavagnino A., Hawkins D., Goss J., Modern heat extraction systems for power traction machines – A review, IEEE Transactions on Industry Applications, vol. 52, no. 3, pp. 2167–75 (2016), DOI: 10.1109/TIA.2016.2518132.
• [3] Tighe C., Gerada C., Pickering S., Assessment of cooling methods for increased power density in electrical machines, 2016 XXII international conference on electrical machines (ICEM), Lausanne, Switzerland, pp. 2626–2632 (2016), DOI: 10.1109/ICELMACH.2016.7732892.
• [4] Ponomarev P., Polikarpova M., Pyrhönen J., Thermal modeling of directly-oil-cooled permanent magnet synchronous machine, 2012 XXth International Conference on Electrical Machines, Marseille, France, pp. 1882–1887 (2012), DOI: 10.1109/ICElMach.2012.6350138.
• [5] Dan M., Hao J., Qin W., Liao R., Zou R., Mengzhao Z., Liang S., Effect of different impurities on motion characteristics and breakdown properties of insulation oil under DC electrical field, 2018 IEEE International Conference on High Voltage Engineering and Application (ICHVE), Athens, Greece, pp. 1–4 (2018), DOI: 10.1109/ICHVE.2018.8642256.
• [6] Popescu M., Goss J., Staton D.A., Hawkins D., Chong Y.C., Boglietti A., Electrical vehicles—Practical solutions for power traction motor systems, IEEE Transactions on Industry Applications, vol. 54, no. 3, pp. 2751–62 (2018), DOI: 10.1109/TIA.2018.2792459.
• [7] McFadden C., Hughes K., Raser L., Newcomb T., Electrical conductivity of new and used automatic transmission fluids, SAE International Journal of Fuels and Lubricants, vol. 9, no. 3, pp. 519–26 (2016), DOI: 10.4271/2016-01-2205.
• [8] Montonen J., Nerg J., Polikarpova M., Pyrhönen J., Integration principles and thermal analysis of an oil-cooled and-lubricated permanent magnet motor planetary gearbox drive system, IEEE Access, vol. 7, pp. 69108–18 (2019), DOI: 10.1109/ACCESS.2019.2919506.
• [9] Carlo R.M., de Bruzzoniti M.C., Sarzanini C., Maina R., Tumiatti V., Copper contaminated insulating mineral oils-testing and investigations, IEEE Transactions on Dielectrics and Electrical Insulation, vol. 20, no. 2, pp. 557–63 (2013), DOI: 10.1109/TDEI.2013.6508759.
• [10] Carlo R.M., de Sarzanini C., Bruzzoniti M.C., Maina R., Tumiatti V., Copper-in-oil dissolution and copper-on-paper deposition behavior of mineral insulating oils, IEEE Transactions on Dielectrics and Electrical Insulation, vol. 21, no. 2, pp. 666–73 (2014), DOI: 10.1109/TDEI.2013.004121.
• [11] Antonov G.I., Working Group 17 (Particles in Oil) of Study Committee 12, Effect of particles on transformer dielectric strength, International Conference on Large High Voltage Electric Systems, Cigré, Paris, France (2000).
• [12] Zhang J., Wang F., Li J., Ran H., Huang D., Influence of copper particles on breakdown voltage and frequency-dependent dielectric property of vegetable insulating oil, Energies, vol. 10, no. 7, 938 (2017), DOI: 10.3390/en10070938.
• [13] Dan M., Hao J., Liao R., Cheng L., Zhang J., Li F., Accumulation behaviors of different particles and effects on the breakdown properties of mineral oil under DC voltage, Energies, vol. 12, no. 12, pp. 2301 (2019), DOI: 10.3390/en12122301.
• [14] Pauli F., Ruf A., Hameyer K., Low voltage winding insulation systems under the influence of high du/dt slew rate inverter voltage, Archives of Electrical Engineering, vol. 69, no. 1, pp. 187–202 (2020), DOI: 10.24425/aee.2020.131767.
• [15] Brütsch R., Chapman M., Insulating systems for high voltage rotating machines and reliability considerations, 2010 IEEE International Symposium on Electrical Insulation, San Diego, CA, USA, pp. 1–5 (2010), DOI: 10.1109/ELINSL.2010.5549737.
• [16] Dymond J.H., Stranges N., Younsi K., Hayward J.E., Stator winding failures: contamination, surface discharge, tracking, IEEE Transactions on Industry Applications, vol. 38, no. 2, pp. 577–83 (2002), DOI: 10.1109/28.993182.
• [17] Rahimi M.R., Javadinezhad R., Vakilian M., DC partial discharge characteristics for corona, surface and void discharges, 2015 IEEE 11th International Conference, Sydney, NSW, Australia, pp. 260–263 (2015), DOI: 10.1109/ICPADM.2015.7295258.
• [18] IEC/TR 60664-2-1: 2011 + Cor.:2011, Insulation coordination for equipment within low-voltage systems – Part 2–1: Application guide – Explanation of the application of the IEC 60664 series, dimensioning examples and dielectric testing (2011).
• [19] IEC 60664-1:2007, Insulation coordination for equipment within low-voltage systems – Part 1: Principles, requirements and tests (2007).
• [20] IEC 60172:2015, Test procedure for the determination of the temperature index of enamelled and tape wrapped winding wires (2015).
• [21] IEC 60317-0-1:2013, Specifications for particular types of winding wires – Part 0–1: General requirements – Enamelled round copper wire (2013).
• [22] IEC 62631-3-2:2015, Dielectric and resistive properties of solid insulation material – Part 3–2: Determination of resistive properties (DC Methods) – Surface resistance and surface resistivity (2015).
• [23] Yang L., Pauli F., Hameyer K., Influence of thermal-mechanical stress on the insulation system of a low voltage electrical machine, Archives of Electrical Engineering, vol. 70, no. 1, pp. 233–44 (2021), DOI: 10.1109/ICPADM.2015.7295258.
• [24] Akmal A.S., Borsi H., Gockenbach E., Wasserberg V., Mohseni H., Dielectric behavior of insulating liquids at very low frequency, IEEE Transactions on Dielectrics and Electrical Insulation, vol. 13, no. 3, pp. 532–538 (2006), DOI: 10.1109/TDEI.2006.1657965.

Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).