Results 11 to 20 of about 43,590 (298)

A General Pulse Width Modulation Method for Zero-Voltage-Switching Active-clamping Three-phase Power Converters: Edge Aligned Pulse Width Modulation (EA-PWM)

IEEE Open Journal of Power Electronics, 2020
A general PWM method for soft-switching three-phase power converters-Edge Aligned PWM (EA-PWM) is proposed. It aligns all the high loss commutation instants of the converter bridges in a switching cycle at the same instant so that all the switches of the
Keyan Shi, Jinyi Deng, Dehong Xu
doaj   +1 more source

Modified Discontinuous Pulsewidth Modulation Approach With Independent Phase Loss Adjustment for Voltage Source Converters

IEEE Access, 2023
This paper presents an efficient independent phase switching loss reduction technique for 2-level 3-phase voltage source inverters. A modified carrier-based pulse-width modulation algorithm, named per-phase discontinuous pulse-width modulation, is used ...
Minh-Hoang Nguyen, Sangshin Kwak, Seungdeog Choi   +2 more
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Coordinate strategy of dual-pulse-width-modulation converter based on direct power control with load power feed-forward

Measurement + Control, 2020
The common dual-pulse-width-modulation converter adopts the independent method to control the rectifier and inverter, which has the defects including direct current voltage fluctuation, slow system response and so on.
Bo Fan, Zhumu Fu, Kai Michels, Jiangtao Fu   +3 more
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Novel Asymmetrical Pulse Width Modulation Method

MATEC Web of Conferences, 2017
The paper proposes new asymmetrical PWM that can be used for operation of multilevel inverters. The working and construction principle of this PWM is demonstrated on 13-level PWM signal that is applied to nine-level inverter and operates it as 13-level ...
Baimel Dmitry, Tapuchi Saad, Baimel Nina
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Control and Stabilization of Centimeter Scale Glow Discharge in Ambient Air Using Pulse-Width Modulation

IEEE Access, 2020
Re-pulsing glow discharges in atmospheric-pressure air were experimentally investigated using a push-pull generator with pulse-width modulation. Discharges were ignited as a spark-glow discharge sequence and sustained in a glow regime after ignition in a
Vladislav Gamaleev, Nikolay Britun, Masaru Hori   +2 more
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Intensity Distribution of the Shaped Femtosecond Laser Pulse by Step Phase Modulation

Nantong Daxue xuebao. Ziran kexue ban, 2020
The intensity distribution of the step phase shaped femtosecond laser pulse by ultra-fast pulse shaping technique is studied. The results show that two sub-pulses with variable intensity can be developed from a Gaussian laser pulse by adjusting the step ...
HUANG Yunxia;JI Xianming;XU Shuwu
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Hybrid Space Vector PWM Strategy for Three-Phase VIENNA Rectifiers

Sensors, 2022
Vienna rectifiers are widely used, but they have problems of zero-crossing current distortion and midpoint potential imbalance. In this paper, an improved hybrid modulation strategy is proposed.
Yaodong Wang, Yinghui Li, Xu Guo, Shun Huang   +3 more
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A Chaotic Pulse-Time Modulation Method for Digital Communication

Abstract and Applied Analysis, 2012
We present and investigate a method of chaotic pulse-time modulation (PTM) named chaotic pulse-width-position modulation (CPWPM) which is the combination of pulse-position-modulation (PPM) and pulse-width modulation (PWM) with the inclusion of chaos ...
Nguyen Xuan Quyen, Vu Van Yem, Thang Manh Hoang   +2 more
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Shaft Voltage Reduction Method Using Carrier Wave Phase Shift in IPMSM

Energies, 2021
Common-Mode Voltage (CMV) induces shaft voltage and bearing current due to the electrical interaction with the parasitic capacitance of the motor. CMV, shaft voltage, and bearing current are considered the major causes of bearing fault.
Jun-Hyuk Im, Yeol-Kyeong Lee, Jun-Kyu Park, Jin Hur   +3 more
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Modulation in Voltage Source Inverters: An Algebraic Approach

IEEE Access
Pulse width modulation in voltage source inverters with an arbitrary number of phases is analyzed in this paper. The problem is treated as purely algebraic, without any use of space vectors.
Spasoje Miric, Uros Borovic, Predrag Pejovic   +2 more
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