Results 21 to 30 of about 8,628,474 (297)

A Comprehensive Mixed-Mode Time-Domain Load- and Source-Pull Measurement System [PDF]

, 2010
We present a novel test set devised for nonlinear balanced device characterization using load-pull techniques. The system is capable of measuring the voltage and current waveforms at the calibration reference planes while independently tuning the device ...
Ferrero, Andrea Pierenrico, Garelli, Marco, Bonino, Serena, Teppati, Valeria   +3 more
core   +1 more source

A Low Common-Mode SVPWM for Two-Level Three-Phase Voltage Source Inverters

, 2023
In order to reduce the common-mode voltage (CMV) generated by the use of space vector pulse width modulation (SVPWM) in two-level three-phase voltage source inverters, a low common-mode SVPWM method is proposed.
Kaihui Zhao, Mingcheng Lyu, Cunxing Peng, Jian Zheng   +3 more
core   +1 more source

A new common-mode voltage reduction technique for multilevel inverters [PDF]

, 2007
In this paper, a novel common-mode voltage reduction technique is proposed for a three-phase multilevel inverter. The technique can be used to control capacitors voltages and load currents with low switching losses.
Hamid Hassanpour, Firuz Zare, Zare, Firuz, Hassanpour, Hamid, Gerard Ledwich, Ledwich, Gerard F., Ghoreishy, Hoda, Ledwich, Gerard, Hoda Ghoreishy   +8 more
core   +1 more source

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

IEEE 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

Common-Mode Frequency of Power Systems Affected by Voltage Dynamics

, 2023
The increasing penetration of converter-interfaced generators (CIGs) in power systems has posed great challenges in frequency stability analysis, as the frequency dynamics of CIGs may be strongly coupled with voltage dynamics.
Hui Yuan (14844865), Huanhai Xin (11895575), Guang Hu (16022167), Bin Cao (16022188), Huisheng Gao (11895707), Linbin Huang (11895710)   +5 more
core   +1 more source

Common-mode Voltage Reduction in a Motor Drive System with a Power Factor Correction

, 2012
Common-mode voltage generated by a power converter in combination with parasitic capacitive couplings is a potential source of shaft voltage in an AC motor drive system.
Ghosh, A., Adabi Firouzjaee, Jafar, Abbasalizadeh Boora, Arash, Adabi, J., Zare, F., Nami, A., Nami, Alireza, Ghosh, Arindam, Zare, Firuz, Blaabjerg, Frede, Blaabjerg, Frede; id_orcid, Boora, A.A.   +11 more
core   +2 more sources

H8 Inverter for Common-Mode Voltage Reduction in Electric Drives [PDF]

IEEE Transactions on Industry Applications, 2016
This paper presents a modified two-level three-phase inverter for the reduction of the leakage current. With respect to a traditional two-level inverter, the proposed solution reduces the common-mode voltage (CMV), both in amplitude and frequency. Between the dc source and the traditional three-phase bridge, two active dc-decoupling devices and a ...
CONCARI, Luca, BARATER, Davide, Buticchi, Giampaolo, CONCARI, Carlo, Liserre, Marco   +4 more
openaire   +4 more sources

Leakage current and common mode voltage issues in modern AC drive systems [PDF]

, 2007
Due to rapid developments of IGBT technology, switching time and frequency are dramatically increased. At higher carrier frequencies, IGBTs induce more capacitive coupled current into a rotor and a stator frame and lead to faster bearing damage.
Ghosh, A., Adabi Firouzjaee, Jafar, F. Zare, G. Ledwich, Adabi, J., Zare, F., Ghosh, Arindam, Zare, Firuz, Ledwich, Gerard F., J. Adabi, Ledwich, G., A. Ghosh   +11 more
core   +1 more source

Elimination of Common Mode Voltage in Three-To-Six-Phase Matrix Converter

Energies, 2019
The matrix converter (MC) is the n-phase input and m-phase output power electronic system. To synthesis the controllable sinusoidal output voltage and input current with controllable input displacement angle, the pulse width modulation method (PWM) is ...
Janina Rząsa, Elżbieta Sztajmec
doaj   +1 more source

Influence of electrostatics upon electrospray with the intention of application to colloid thrusters [PDF]

, 2011
PhDA thorough experimental and theoretical characterization of the effect of electrostatics on the electrospray process, focusing particularly on the flow rate sensitivity to the applied potential difference (voltage), has been completed.
Ryan, Charles N., Ryan, Charles N
core   +3 more sources