Results 31 to 40 of about 2,076,023 (303)

Constant power output characteristics of resonant wireless power transmission system [PDF]

open access: yes电力工程技术, 2022
In the process of wireless charging,the fluctuation of output power is caused by the change of battery resistance,which shortens the battery life and affects the safety of charging.
WEI Jincheng   +5 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

Direct power control of dual-active-bridge dc–dc converters based on unified phase shift control

open access: yesThe Journal of Engineering, 2019
Dual-active-bridge (DAB) dc–dc converters are the important part of the transformerless electric traction drive system in railway application. Also the dynamic characteristic of DAB converters in the electric traction drive system is very significant ...
Feng An, Wensheng Song, Kexin Yang
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

Current Sharing Control of an Interleaved Three-Phase Series-Resonant Converter with Phase Shift Modulation

open access: yesEnergies, 2021
Recently, three-phase series-resonant converters (SRCs) have been proposed for high power applications. Three-phase SRCs can achieve zero-voltage-switching (ZVS) of the primary power switches and regulate the output voltage by pulse-frequency modulation.
Jing-Yuan Lin   +4 more
doaj   +1 more source

Controllable linear $\pi$-phase modulation in a thermal atom vapor without diffraction or absorption [PDF]

open access: yes, 2014
A scheme is proposed to achieve substantial controllable phase modulation for a probe field propagating through a thermal atomic vapor in double-$\Lambda$ configuration.
Evers, Jörg, Zhang, Lida
core   +3 more sources

Research of single phase-shift close-loop control for bi-directional full-bridge DC-DC converter

open access: yesGong-kuang zidonghua, 2014
In view of problem of low efficiency of bi-directional full-bridge DC-DC converter based on traditional single phase-shift control, the paper proposed a design scheme of bi-directional full-bridge DC-DC converter based on single phase-shift close-loop ...
YANG Xiaokang   +3 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

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

Phase correction for Learning Feedforward Control [PDF]

open access: yes, 2003
Intelligent mechatronics makes it possible to compensate for effects that are difficult to compensate for by construction or by linear control, by including some intelligence into the system. The compensation of state dependent effects, e.g.
Kruif, Bas J. de, Vries, Theo J.A. de
core   +2 more sources

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