Results 41 to 50 of about 498,734 (308)
A Switched-Capacitor-Voltage-Doubler Based Boost Inverter for Common-Mode Voltage Reduction
IEEE Access, 2019 In this paper, a modified three-phase two-level voltage source inverter is proposed. By combining the conventional three-phase H-bridge inverter with a switched-capacitor-voltage-doubler network, the DC-link voltage of the proposed inverter is double ...
Tan-Tai Tran +5 more
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Optimization of TSPWM for Common-Mode Voltage Reduction in Vehicular Electric Drive System
World Electric Vehicle Journal, 2021 Common-mode voltage can be reduced effectively by optimized modulation methods without increasing additional costs. However, the existing methods cannot satisfy the requirements of the vehicular electric-drive application.
Shang Jiang, Yuan Wang
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Six‐phase SVPWM with common‐mode voltage suppression [PDF]
IET Power Electronics, 2018 There are two common‐mode voltages (CMVs) in a six‐phase machine with two Y‐connected windings shifted by 30°, which bring adverse effects on the six‐phase system. In this study, a method of six‐phase space vector pulse width modulation (SVPWM) is proposed, which can suppress the magnitude and frequency of the two CMVs.
Jian Zheng +4 more
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IEEE Access, 2022 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 ...
Wenjun Zhu +4 more
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A New Dynamic Voltage Restorer with Multi-level Open-end Winding Topology [PDF]
E3S Web of Conferences, 2020 In this paper, a variety of main circuit structures of DVR based on open-end winding are presented. Two inverters are connected in series to realize the multi-level structure and simplify the hardware cost. According to the mathematical model of open-end
Yin Jingyuan +5 more
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Paralleling of buck converters for DC microgrid operation [PDF]
, 2016 This paper presents the controller design of paralleled Buck converters using Droop Control to obtain common load sharing for DC Microgrid operation. Proportional Integral (PI) controllers are used to provide nested current and voltage control of the ...
Apap, Maurice +4 more
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Mitigating Common Mode Current in Chain Energy Storage Inverters With Novel Approach
IEEE Open Journal of Power ElectronicsThe chain energy storage converter, a type of multilevel converter, exhibits characteristics such as multi-modularization, easy scalability, and low harmonic voltage output, rendering it suitable for medium to high voltage and large capacity energy ...
Qinglei Zhang +3 more
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Phase detector for three-phase power factor controller [PDF]
, 1984 A phase detector for the three phase power factor controller (PFC) is described. The phase detector for each phase includes an operational amplifier which senses the current phase angle for that phase by sensing the voltage across the phase thyristor ...
Nola, F. J.
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Differential Bloch Oscillating Transistor Pair
, 2013 We examine a Bloch Oscillating Transistor pair as a differential stage for cryogenic low-noise measurements. Using two oppositely biased, nearly symmetric Bloch Oscillating Transistors, we measured the sum and difference signals in the current gain and ...
Hakonen, Pertti J. +3 more
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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 ...
Bonino, Serena +3 more
core +1 more source