Results 31 to 40 of about 4,334 (147)

Control and Dynamic Characteristics Analysis for the Double-Compound Axial Piston Pump Based on Working Conditions

open access: yesMachines, 2022
The periodic flow and pressure pulsation of the axial piston pump can lead to periodic vibration, noise, and even damage to various components in the hydraulic system.
Zhiyuan Sun   +3 more
doaj   +1 more source

An Optimized Control Scheme to Reduce the Backflow Power and Peak Current in Dual Active Bridge Converters [PDF]

open access: yes2019 IEEE Applied Power Electronics Conference and Exposition (APEC), 2019
An optimized switching control scheme to reduce the backflow power and the peak current of the dual active bridge converter is presented in this paper. Based on a triple-phase-shift modulation, the control scheme consists of operating the switching devices with three optimized control variables on the basis of achieving a decreased backflow power and ...
Liu, Bochen; id_orcid 0000-0001-7192-994X   +2 more
openaire   +2 more sources

A new modulation strategy and power balance method of unsymmetrical CHB inverter

open access: yesIET Renewable Power Generation, 2021
There exist the problems of the low utilization rate of DC voltage, power imbalance and current backflow in the modulation process of traditional unsymmetrical cascaded units.
Renxi Gong   +3 more
doaj   +1 more source

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

CFD Analysis of Sine Baffles on Flow Mixing and Power Consumption in Stirred Tank

open access: yesApplied Sciences, 2022
In order to enhance the fluid mixing in the stirred tank and reduce the power consumption under the condition of full baffle, a sinusoidal sawtooth baffle was established in the present study. Based on the Eulerian–Eulerian method, a numerical simulation
Shuiqing Zhou   +5 more
doaj   +1 more source

An Efficiency-Optimized Isolated Bidirectional DC-DC Converter with Extended Power Range for Energy Storage Systems in Microgrids

open access: yesEnergies, 2012
This paper proposes a novel extended-single-phase shift (ESPS) control strategy of isolated bidirectional full-bridge DC-DC converters (IBDCs) which are a promising alternative as a power electronic interface in microgrids with an additional function of ...
Xiaolong Shi, Jiuchun Jiang, Xintao Guo
doaj   +1 more source

Toward Suppressing Oil Backflow Based on a Combined Driving Waveform for Electrowetting Displays

open access: yesMicromachines, 2022
Electrowetting display (EWD) is a new type of paper-like reflective display based on colored oil, which has gradually become one of the most potential electronic papers with low power consumption, fast response, and full color.
Zhengxing Long   +7 more
doaj   +1 more source

Driving Waveform Design with Rising Gradient and Sawtooth Wave of Electrowetting Displays for Ultra-Low Power Consumption

open access: yesMicromachines, 2020
As a kind of paper-like display technology, power consumption is a very important index for electrowetting displays (EWDs). In this paper, the influence of driving waveforms on power consumption of the EWDs is analyzed, and a driving waveform with rising
Wei Li   +7 more
doaj   +1 more source

The Estimation of the Geomagnetically Induced Current Based on Simulation and Measurement at the Power Network: A Bibliometric Analysis of 42 Years (1979–2021)

open access: yesIEEE Access, 2022
GIC (geomagnetic induced current) is a natural current that flows through a conductive substance. The purpose of this study is to provide bibliometric analysis on the computation of the GIC at the Power Network, since determining the backflow current ...
Kharismi Burhanudin   +4 more
doaj   +1 more source

Tesla valves and capillary structures-activated thermal regulator

open access: yesNature Communications, 2023
Two-phase (liquid, vapor) flow in confined spaces is fundamentally interesting and practically important in many practical applications such as thermal management, offering the potential to impart high thermal transport performance owing to high surface ...
Wenming Li   +4 more
doaj   +1 more source

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