Results 21 to 30 of about 719,739 (276)

Performance Analysis and Experimental Research of Electromagnetic-Ring Active Balancing Actuator for Hollow Rotors of Machine Tool Spindles

open access: yesApplied Sciences, 2019
Active balancing actuators are essential components of intelligent machine tool spindles to automatically reduce the unbalance vibration and promote machining accuracy and efficiency.
Xin Pan   +5 more
doaj   +1 more source

Physical activity and energy balance [PDF]

open access: yesPublic Health Nutrition, 1999
AbstractEnergy expenditure rises above resting energy expenditure when physical activity is performed. The activity-induced energy expenditure varies with the muscle mass involved and the intensity at which the activity is performed: it ranges between 2 and 18 METs approximately.
openaire   +2 more sources

Direct control strategy for a four-level three-phase flying-capacitor inverter [PDF]

open access: yes, 2010
A direct predictive control strategy is proposed for a three-phase four-level flying-capacitor (FC) inverter in this paper. The balancing of the FC voltages, a challenge in applications with small capacitors and low switching frequencies, is done without
Defaÿ, François   +2 more
core   +1 more source

A predictive control with flying capacitor balancing of a multicell active power filter [PDF]

open access: yes, 2008
Unlike traditional inverters, multicell inverters have the following advantages: lower switching frequency, high number of output levels, and less voltage constraints on the insulated-gate bipolar transistors.
Defaÿ, François   +2 more
core   +1 more source

A dual-grating InGaAsP/InP DFB laser integrated with an SOA for THz generation [PDF]

open access: yes, 2016
We report a dual-mode semiconductor laser that has two gratings with different periods below and above the active layer. A semiconductor optical amplifier (SOA), which is integrated with the dual-mode laser, plays an important role in balancing the ...
Deng, Qiufang   +5 more
core   +1 more source

A Modular Active Balancing Circuit for Redox Flow Battery Applied in Energy Storage System

open access: yesIEEE Access, 2021
To improve the operation performance and energy conversion efficiency of the redox flow battery (RFB), a modular active balancing circuit for redox flow battery applied in the energy storage system is proposed in this paper. Detailed topology description,
Weide Guan, Xiaoqing Huang
doaj   +1 more source

Inverted Pendulum Human Transporter Balance Control System Based on Proportional Integral Derivative – Active Force Control [PDF]

open access: yes, 2011
Many research for the balancing of inverted pendulum control system to develop the performance. This paper will simulate a Proportional Integral Derivative – Active Force Control (PID-ACF) methods to swing a pendulum attached to a cart from an initial ...
Pitowarno, Endra, putra, kamajaya
core   +2 more sources

Operating Principle and Performance Optimization of a Three-Level NPC Dual-Active-Bridge DC-DC Converter [PDF]

open access: yes, 2015
© 1982-2012 IEEE. Aiming to improve the performance features of conventional two-level dual-active-bridge (DAB) converters, this paper presents a three-level neutral-point-clamped (NPC) DAB dc-dc converter.
Bordonau Farrerons, José   +3 more
core   +2 more sources

Power balancing and dc fault ride through in DC grids with dc hubs and wind farms [PDF]

open access: yes, 2015
Acknowledgment This project was funded by European Research Council under the Ideas program in FP7; grant no 259328, 2010.Peer ...
Jovcic, Dragan, Lin, Weixing
core   +1 more source

Multi-layer state of health balancing control for a battery-based energy storage system to extend cycle life based on active equalization circuits

open access: yesFrontiers in Energy Research, 2022
State of health (SoH) imbalance causes capacity waste and cycle life reduction of the battery-based energy storage systems (BESS), which demands SoH balancing control of the parallel-connected packs and the series-connected cells of the BESS.
Xiaohang Li   +5 more
doaj   +1 more source

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