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Performance of Common-Mode Chokes [PDF]

open access: yesIEEE Industry Applications Magazine, 2010
A low-cost method for experimental investigation of common-mode chokes for reducing high-frequency motor ground-currents of inverter-based drive systems of several hundred kW is presented. It provides a powerful tool during the design stage of such chokes to verify their predicted performance.
Muetze, Annette, Heng, Bee See
openaire   +3 more sources

Suppression of Common-Mode Resonance in Multiband Base Station Antennas [PDF]

open access: yesSensors, 2023
5G demands a significant increment in the number of connected devices. As a result, gNodeBs are constantly pushed to serve more spectrum and smaller sectors. These increased capacity demands are met by using multiband antennas in base stations.
Madiha Farasat   +4 more
doaj   +2 more sources

A Space Vector Based Zero Common-Mode Voltage Modulation Method for a Modular Multilevel Converter [PDF]

open access: goldWorld Electric Vehicle Journal, 2023
A modular multilevel converter (MMC) can generate different common-mode voltage (CMV) values due to the high-frequency changing of the switching state under various modulation strategies.
Guozheng Zhang   +4 more
doaj   +2 more sources

Common-mode noise cancellation circuit for wearable ECG [PDF]

open access: yesHealthcare Technology Letters, 2017
Wearable electrocardiogram (ECG) is attracting much attention for monitoring heart diseases in healthcare and medical applications. However, an imbalance usually exists between the contact resistances of sensing electrodes, so that a common mode noise ...
Mutsumi Noro   +2 more
doaj   +2 more sources

Design of current sources for load common mode optimization [PDF]

open access: yesJournal of Electrical Bioimpedance, 2018
Bioimpedance measurement systems often use the Howland current sources to excite the biological material under study. Usually, difference or instrumentation amplifiers are used to measure the resulting voltage drop on this material.
Sirtoli Vinicius G   +2 more
doaj   +2 more sources

Optimization of voltage differential protection for UHVDC transmission line [PDF]

open access: yes电力工程技术, 2022
Ground fault tests of ultra-high voltage direct current (UHVDC) transmission line indicate that voltage differential protection of the other pole may be false tripped when the ground fault happens on the line of the pole with a larger number of operating
YANG Jianming   +4 more
doaj   +1 more source

A high-frequency modeling of AC motor in a frequency range from 40 Hz to 110 MHz

open access: yesElectrical engineering & Electromechanics, 2022
Introduction. Most electromagnetic compatibility models developed for the study of three-phase induction machines are generally valid for low and medium frequencies (
H. Miloudi   +5 more
doaj   +1 more source

A Common-Mode Shorting Network to Reduce Common-Mode Excitation of Three-Phase Two-Level Electric Drives

open access: yesIEEE Open Access Journal of Power and Energy, 2023
Common-mode voltage and current in an electric machine are undesirable. Although the strategic placement of a common-mode inductor and dc input side capacitors may reduce the common-mode current produced by an electric drive system, the effectiveness of ...
Harshita Singh, Scott D. Sudhoff
doaj   +1 more source

Modeling Common-Mode Current Due to Asymmetric Aging of Machine Winding Insulation

open access: yesComplex System Modeling and Simulation, 2023
Machine stator winding insulation degradation is one of the main results of machine aging. It is non-negligible once this degradation process becomes asymmetric between phases.
Jin Zhao, Aaron D. Brovont
doaj   +1 more source

Impact of High Switching Speed and High Switching Frequency of Wide-Bandgap Motor Drives on Electric Machines

open access: yesIEEE Access, 2021
The emergence of fast-switching wide-bandgap (GaN, SiC) power electronics devices has enabled motor drive systems to achieve high efficiency, power density, control bandwidth and high-level of integration.
Yipu Xu   +6 more
doaj   +1 more source

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