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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 ...
Power quality and reactive power of water electrolyzers supplied with thyristor converters
(Elsevier, 2020-03-28)
Industrial water electrolyzers apply direct current in kiloampere ranges. Therefore, rectifiers are typically based on thyristors despite the high amplitude current fluctuation excited by the rectifier. This paper studies ...
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, ...
A facility for mixed flowing gas testing of and experimentation with power electronic components and systems
(IEEE, 2020-10-07)
Corrosion phenomena have been found to inflict new types of failures on power electronics. Currently, the precise corrosion mechanisms and effects causing problems are largely unknown. A facility dedicated for environmental ...