Results 131 to 140 of about 65,111 (304)

A plug-and-play ripple mitigation approach for DC-links in hybrid systems [PDF]

, 2016
© 2016 IEEE.In this paper, a plug-and-play ripple mitigation technique is proposed. It requires only the sensing of the DC-link voltage and can operate fully independently to remove the low-frequency voltage ripple. The proposed technique is nonintrusive
Hui, SY, Lee, ATL, Li, S, Siew-Chong-Tan
core   +1 more source

Tunable Josephson Generator for Qubit Excitation and Two‐Tone Spectroscopy

Advanced Quantum Technologies, EarlyView.
A tunable on‐chip Josephson generator that enables direct qubit excitation has been presented. The device consists of a current‐biased Josephson junction and a superconducting resonator, forming a microwave source that operates at 4 K. Excitation of the qubit at 20 mK was done via a short coaxial line between the 4 K and 20 mK stages.
M. M. Khrenov, R. D. Yusupov, G. I. Gubochkin, V. A. Vozhakov, I. A. Nazhestkin, A. D. Belanovsky, A. S. Ionin, P. A. Gladilovich, G. S. Khismatullin, L. V. Filippenko, M. Y. Fominskii, V. P. Koshelets, M. Yu. Kupriyanov, V. V. Ryazanov, N. Maleeva, N. V. Klenov, I. I. Soloviev, D. S. Yakovlev   +17 more
wiley   +1 more source

Hysteresis Control for Shunt Active Power Filter under Unbalanced Three-Phase Load Conditions

Journal of Electrical and Computer Engineering, 2015
This paper focuses on a four-wire shunt active power filter (APF) control scheme proposed to improve the performance of the APF. This filter is used to compensate harmonic distortion in three-phase four-wire systems.
Z. Chelli, R. Toufouti, A. Omeiri, S. Saad   +3 more
doaj   +1 more source

Active Power Filtering Using the ZDPC Method under Unbalanced and Distorted Grid Voltage Conditions

Energies, 2015
In this paper, we propose a new Zero Direct Power Control (ZDPC) technique for active compensation of harmonics and reactive power, using shunt active power filter (SAPF), based on cancellation of instantaneous active and reactive power disturbances by ...
Kamel Djazia, Fateh Krim, Abdelmadjid Chaoui, Mustapha Sarra   +3 more
doaj   +1 more source

Toward Real‐Life Applications of Fiber Lithium‐Ion Batteries

Small, EarlyView.
Fiber‐shaped lithium‐ion batteries require effective encapsulation to achieve long‐term stability in wearable applications. This work discusses different encapsulation strategies and technologies, and summarizes how encapsulation affects capacity retention, efficiency, and internal resistance.
Mengli Wei, Nanfei He, Seongjin Kim, Andrea Lee, Wei Gao   +4 more
wiley   +1 more source

Fast and Simple Series Resistance Imaging for Tandem Solar Cells Using Differential Luminescence

Solar RRL, EarlyView.
This article presents a method for imaging the series resistance of subcells in a multijunction device. It requires few input properties, no current or voltage calibration and only three measured images. Validated on single junction and multijunction perovskite‐based devices, this method provides a practical tool for advancing photovoltaic research and
Cyril Leon, Capucine Corbin, Louis Besnardeau, Nathalie Nguyen, Severine Bailly, Wyttenbach Joël   +5 more
wiley   +1 more source

Investigating Spatial‐Temporal Optical Emission Spectroscopy of Unstable Positive Leaders in Long Sparks Under Atmospheric Pressure

High Voltage, EarlyView.
ABSTRACT This study explores exciting state species and reaction pathways in positive leaders to better understand the breakdown mechanisms of long air gap discharges and natural lightning. Emission spectra from an unstable positive leader in a 1 m rod‐plate air gap under switching impulse voltages were observed, spanning 300–800 nm.
Hengxin He, Yubin Huang, Wanxia Zhang, Chang Liu, Xiuyuan Yao, Yu Ying, Weijiang Chen   +6 more
wiley   +1 more source

Design of Single-Phase Active Power Filter for Harmonic Mitigation in Distribution Power Line [PDF]

, 2002
Recently, the wide use of power electronic components in various application s has affected the quality of the power. One of the most serious problems is that of the harmonic, which is generated from the nonlinear loads such as variable frequency AC ...
Dahidah, Mohamed S. A.
core  

STREETS AS STAGES: Traffic Enforcement and the Competition for Cultural Growth in China

International Journal of Urban and Regional Research, EarlyView.
ABSTRACT In keeping with China’s desire to build soft power to parallel its economic growth, the policing of city streets has moved to the forefront as a mechanism for moral regulation and improving urban prestige. Under pressure to civilize their citizenry, many Chinese cities have become entrepreneurial cities within a type of cultural growth ...
Gregory Fayard
wiley   +1 more source

Modified Synchronous Reference Frame Based Shunt Active Power Filter with Fuzzy Logic Control Pulse Width Modulation Inverter

, 2017
Harmonic distortion in power networks has greatly reduced power quality and this affects system stability. In order to mitigate this power quality issue, the shunt active power filter (SAPF) has been widely applied and it is proven to be the best ...
S. Musa, M. Radzi, H. Hizam, N. Wahab, Y. Hoon, M. Zainuri   +5 more
semanticscholar   +1 more source