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Showing 1 to 5 of 5 for “"Bearing currents"”.
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The impact of conventional and wide bandgap semiconductor PWM inverter EDM bearing currents on motor bearings.
… produced by these PWM motor drives is premature bearing failure due to an increase in vibration from the damage caused by electric discharge machining (EDM) bearing currents. This dissertation presents detailed discharge circuit modeling of motor bearing currents, investigates the impact of …
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Space vector pulse-width modulation for multilevel inverters and solution to modulation dependent problems
… problems, (1) Common mode voltage results in bearing currents that can lead to bearing failure. Schemes have been reported for multilevel inverters to reduce the common mode voltage. However, most of the schemes result in reduced modulation depth, high switching losses and high harmonic …
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Power Density Optimization of SiC-based DC/AC Converter for High-Speed Electric Machine in More/All-electric Aircraft
… the stringent aerospace EMI standard DO-160 and bearing current limitations. Electric aircraft demand unmatched reliability, necessitating strict control over EMI noise and bearing currents. These considerations significantly impact the selection of topology and parameters to maximize power …
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Design of High-Density Filter Building Blocks for SiC-based Three-Phase Power Converters
… While at the motor end, long cable and bearing/leakage current effects are prevalent. As such, typically bulky passive filters are recommended to comply with industry regulations and allow safe and reliable system operation, which can be detrimental on the overall system power density. …
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Low Voltage Ride-Through for Indirect Matrix Converter Based Open-End Winding Drives
… at medium to high frequencies and cause bearing currents to flow, which damage the machine and reduce their lifetime. Elimination or reduction of common mode voltage is a well-researched topic and it has been addressed with plenty of solutions for different kind of drives. One of the …