Results 31 to 40 of about 941,423 (318)

Research on the black start of DC transformers based on soft converter control

open access: yesZhejiang dianli, 2023
The DC transformers with dual active bridge (DAB) topology is characterized by zero voltage switching (ZVS) and provides the basis for realizing lossless turn-off buffer by directly paralleling buffer capacitors.
TANG Xueteng   +5 more
doaj   +1 more source

Optimal Strategy of Triple Phase Shift Transient DC Bias for Dual Active Bridge DC-DC Converter [PDF]

open access: yesE3S Web of Conferences, 2020
Under the traditional phase shift control, dual active bridge DC-DC converter (DAB) has a transient bias on the inductance current when the phase shift ratio changes suddenly, which leads to increase in the current stress of switch tubes and even ...
Zhai Jingyu   +3 more
doaj   +1 more source

Acoustic impedance tuning with active disturbance rejection control

open access: yesJournal of Low Frequency Noise, Vibration and Active Control, 2018
An anechoic end is desired to be implemented on an acoustic test rig. The acoustic impedance can be tuned with active control, such as phase shift control. A precise mathematical description of a system is necessary for phase shift control.
Xu Cheng   +3 more
doaj   +1 more source

Optimal Isolation Control of Three-Port Active Converters as a Combined Charger for Electric Vehicles

open access: yesEnergies, 2016
The three-port converter has three H-bridge ports that can interface with three different energy sources and offers the advantages of flexible power transmission, galvanic isolation ability and high power density. The three-port full-bridge converter can
Zhixiang Ling   +3 more
doaj   +1 more source

Phase shift bandwidth and scan range in microstrip arrays by the element frequency tuning

open access: yes, 2006
In this paper, the far-field phase shift properties of microstrip patch antennas are investigated. It is shown that, similar to reflectarrays, the resonant nature of microstrip patches can be used to change the phase of the radiated field.
Sharma, SK   +3 more
core   +1 more source

Fault Tolerant Control of a Seven-phase Drive by Degrees of Freedom Adaptation [PDF]

open access: yes, 2010
La version éditeur est disponible à l'adresse suivante : http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=5472476&isnumber=5472440This paper proposes a simple way to control multi-phase drives in open-phase conditions. Contrary to existing methods,
KESTELYN, Xavier   +5 more
core   +1 more source

Dynamic Shift Coordinated Control Based on Motor Active Speed Synchronization with the New Hybrid System

open access: yesShock and Vibration, 2017
Considering the inherent disadvantages that severely affect driving comfortability during the shift process in HEVs, a dynamic shift coordinated control based on motor active speed synchronization is proposed to improve shift quality by reduction of ...
Ting Yan   +5 more
doaj   +1 more source

The fundamental phase shift compensation scheme in a digital-controlled VIENNA rectifier with variable carrier-fundamental frequency ratio under unbalanced grid conditions

open access: yesEnergy Reports, 2022
In the DC power distribution systems, One-cycle control (OCC) based three-phase VIENNA rectifiers achieves high power factor (PF) easily. However, under unbalanced grid conditions, the fundamental phase shift between the input current and corresponding ...
Jianguo Lyu   +5 more
doaj   +1 more source

Computation of Optimal Current References for Flux-weakening of Multi-Phase Synchronous Machines [PDF]

open access: yes, 2012
Multi-phase synchronous machines are more and more used in specific applications where high power density, low bus voltage, wide speed range and fault-tolerant capabilities are required. Due to the high number of degrees of freedom, multi-phase machines
Bassel Aslan   +13 more
core   +1 more source

Enhancement of entanglement transfer in a spin chain by phase-shift control [PDF]

open access: yesPhysical Review A, 2007
7 pages, 5 figures.
Maruyama, Koji   +2 more
openaire   +3 more sources

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