Investigation of efficiency models in EnergyPlus and AMCA standard 207 for induction motors powered by variable frequency drives
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DOI: 10.1016/j.enbuild.2019.04.045
Abstract: Abstract Variable frequency drives (VFDs) are widely applied on induction motors to reduce motor electrical power under partial load conditions by adjusting both the frequency and voltage. For centrifugal fan, pump and compressor applications, a… read more here.
Keywords: frequency drives; motor; motor efficiency; variable frequency ... See more keywords
A Review of Modeling and Mitigation Techniques for Bearing Currents in Electrical Machines With Variable-Frequency Drives
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DOI: 10.1109/access.2022.3225119
Abstract: The converter switching in variable-frequency drives can generate high frequency common mode voltage between the machine winding and the converter ground, leading to high frequency parasitic currents which can flow through the machine bearings unless… read more here.
Keywords: bearing currents; frequency; frequency drives; variable frequency ... See more keywords
Influence of Voltage Harmonics on Partial Discharge Diagnostics in Electric Motors Fed by Variable-Frequency Drives
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Industrial Electronics"
DOI: 10.1109/tie.2021.3134085
Abstract: Typically, in partial discharges (PD) diagnostics tests carried out in a laboratory, harmonic content in a voltage waveform is ignored. However, during the operation of variable-frequency drives (VFD)-fed electric motors, the distorted voltage waveform is… read more here.
Keywords: electric motors; voltage waveform; voltage; harmonics ... See more keywords