Results 31 to 40 of about 141,769 (294)
Modified SVPWM technique for CMV reduction in asymmetrical dual three phase induction machine drive
Due to its advantages, the asymmetrical dual three-phase induction motor drive is a strong choice in high-power applications. However, the common-mode voltage produced by the voltage source inverters affects the winding insulation and damages the ...
Manoj K. Chaudhury +2 more
doaj +1 more source
Optimization of voltage differential protection for UHVDC transmission line [PDF]
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 strategy of neutral-point potential balance control and common-mode voltage suppressio
For problems that there are common-mode voltage, over voltage and neutral-point potential imbalance simultaneously in power supply of inverter to motor through long cable, generation mechanisms of common-mode voltage and over voltage were analyzed as ...
WANG Kezhi +5 more
doaj +1 more source
Performance of common-mode chokes [PDF]
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.
Heng, Bee See, Muetze, Annette
core +1 more source
A Comprehensive Mixed-Mode Time-Domain Load- and Source-Pull Measurement System [PDF]
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 +3 more
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A Low Common-Mode SVPWM for Two-Level Three-Phase Voltage Source Inverters
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 +3 more
core +1 more source
Optimized Modulation Method for Common-Mode Voltage Reduction in H7 Inverter
The three-phase H7 inverter topology installs an additional power semiconductor switch to the positive or negative node of the DC-link for reducing the common-mode voltage (CMV) by disconnecting the inverter from the DC source during the zero-voltage ...
Belete Belayneh Negesse +4 more
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Common-Mode Frequency of Power Systems Affected by Voltage Dynamics
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) +5 more
core +1 more source
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
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Elimination of Common Mode Voltage in Three-To-Six-Phase Matrix Converter
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
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