Survey on high‐frequency models of PWM electric drives for shaft voltage and bearing current analysis

M Asefi, J Nazarzadeh - IET Electrical Systems in …, 2017 - Wiley Online Library
In this study, a review on high‐frequency modelling in electric machines is conducted. Pulse‐
width modulation (PWM) creates common‐mode‐voltage (CMV) and common‐mode …

Reliability and operation of high-efficiency induction motors

FJTE Ferreira, G Baoming… - 2015 IEEE/IAS 51st …, 2015 - ieeexplore.ieee.org
Mandatory regulations worldwide are being adopted by several countries to accelerate the
motor market transformation toward Premium/IE3 and Super-Premium/IE4 efficiency classes …

QoS-as-a-Service in the Local Cloud

LL Ferreira, M Albano, J Delsing - 2016 IEEE 21st International …, 2016 - ieeexplore.ieee.org
This paper presents an architecture that supports Quality of Service (QoS) in an Arrowhead-
compliant System of Systems (SoS). The Arrowhead Framework supports local cloud …

Evaluation of slot-embedded partial electrostatic shield for high-frequency bearing current mitigation in inverter-fed induction motors

FJTE Ferreira, MV Cistelecan… - IEEE Transactions on …, 2012 - ieeexplore.ieee.org
In the last decade, the use of PWM voltage-source inverters to control three-phase squirrel-
cage induction motors has increased significantly. Consequently, high-frequency current …

Inverter-Induced bearing currents: a thorough study of the cause-and-effect chains

MTA Êvo, AM Alzamora, IO Zaparoli… - IEEE Industry …, 2022 - ieeexplore.ieee.org
In the last three decades, the study of inverter-induced bearing currents has become a very
important line of research, and hundreds of works related to this theme can be found in the …

Calculation of roller and ball bearing capacitances and prediction of EDM currents

O Magdun, A Binder - 2009 35th Annual Conference of IEEE …, 2009 - ieeexplore.ieee.org
The paper deals with the calculation of the roller and ball bearing capacitances by analytical
and finite element methods 2D and 3D. The central lubricant thickness and the contact …

Comparison of different inverter-fed AC motor types regarding common-mode bearing currents

M Schuster, A Binder - 2015 IEEE Energy Conversion …, 2015 - ieeexplore.ieee.org
A comparison of three different inverter-fed AC motor types concerning the common-mode
bearing voltage and currents is given both by measurements and calculations. Two cage …

A fast transient model for bearing fault analysis in induction machine drives

M Asefi, J Nazarzadeh - IEEE Sensors Journal, 2018 - ieeexplore.ieee.org
In this paper, a common-mode and medium-range frequency model for an electrical drive,
which includes an inverter, an electrical machine, and bearings, is proposed. The bearing …

Slot-embedded partial electrostatic shield for high-frequency bearing current mitigation in inverter-fed induction motors

FJTE Ferreira, MV Cistelecan… - The XIX International …, 2010 - ieeexplore.ieee.org
In the last decade, the use of PWM voltage-source inverters to control three-phase squirrel-
cage induction motors increased significantly. Consequently, high-frequency current activity …

Motor bearings and insulation system condition diagnosis by means of common-mode currents and shaft-ground voltage correlation

FJTE Ferreira, JP Trovão… - 2008 18th International …, 2008 - ieeexplore.ieee.org
Nowadays, motor condition or health-state diagnosis is clearly an important issue in the
industrial scope. In this paper, a review on motor bearing currents is offered, and a novel …