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Submersible permanent-magnet synchronous machine with a stainless core and unequal teeth widths
(Lappeenranta-Lahti University of Technology LUT, 2021-06-30)
In recent years, permanent magnet synchronous machines (PMSM) have gained popularity owing to their excellent performance compared with other kinds of electrical machines in numerous applications. Furthermore, advances in ...
Evaluation of open-source FEM software performance in analysing converter-fed induction machine losses
(Lappeenranta-Lahti University of Technology LUT, 2022-01-28)
Converter-fed induction machines are widely used in variable speed applications. They are renowned for their good controllability, low manufacturing cost, and robustness. These machines are used in various applications ...
Mitigation of inverter-induced noncirculating bearing currents by introducing grounded electrodes into stator slot openings
(IEEE, 2020-12-23)
Modern converter-supplied AC motors are exposed to bearing currents. Despite extensive research and development, the industry still does not have a final solution with acceptable cost and high efficiency. This paper focuses ...
Mitigating noncirculating bearing currents by a correct stator magnetic circuit and winding design
(IEEE, 2020-04-06)
Different mechanisms by which bearing currents flow inside the electrical machine are well studied. In contrast, investigation and development of different techniques to mitigate these currents remain a field for improvement, ...
Development of continuum beam elements for the Achilles tendon modeling
(Lappeenranta-Lahti University of Technology LUT, 2023-01-27)
Finite element analysis is a robust and effective tool for studying soft tissues and living systems. It can analyze them despite their sophisticated forms, and the results provide crucial information. However, the computational ...
On the application of extended grounded slot electrodes to reduce non-circulating bearing currents
(IEEE, 2022-05-11)
Power-electronic-Inverterconverter-induced motor bearing currents are a widespread problem in the field of electrical drives. Parasitic capacitances between the electrical machines parts provide a path for leakage currents, ...
Comparison of Commercial and Open-Source FEM Software: A Case Study
(IEEE, 2020-08-11)
5 kW high-efficiency induction motor is analyzed using 2D open-source platform and the results are compared with commercial software and measurements. The importance of equivalent circuit parameters in 2D analyses is ...