Results 61 to 70 of about 78,974 (300)

Hybrid simulation: an active power filter case study

Ingeniería e Investigación, 2011
The hybrid simulation concept consisting of a combination of computer simulation and laboratory tests. This approach is a cost effective alternative to physically testing the whole system and allows better understanding of complex coupled systems.This ...
Y. A. Garcés, E. A. Cano-Plata, A. J. Ustariz-Farfan   +2 more
doaj  

Active power filter with enhanced echo state network in radar power supply system

IET Power Electronics, 2023
There have been concerns raised on load non‐linearity as more and more load types are being introduced into the radar power supply system. The non‐linear load produces harmonic current while it seriously threatens the normal and safe operation ...
Zongguo Tao, Yuetong Wang, Chenyu Sun, Ruilin Wang, Zhiwei Chen, Yingying Zhang   +5 more
doaj   +1 more source

Optoelectronic Synaptic Devices Using Molecular Telluride Phase‐Change Inks for Three‐Factor Learning

Advanced Functional Materials, EarlyView.
Optoelectronic synaptic devices based on solution‐processed molecular telluride GST‐225 phase‐change inks are demonstrated for three‐factor learning. A global optical signal broadcast through a silicon waveguide induces non‐volatile conductance updates exclusively in locally electrically flagged memristors.
Kevin Portner, Dhananjeya Kumaar, Giacomo Torti, Killian Keller, Till Zellweger, Florian M. Schenk, Christoph Weilenmann, Daniel Chelladurai, Vara Prasad Jonnalagadda, Ghazi Sarwat Syed, Vanessa Wood, Jürg Leuthold, Alexandros Emboras, Maksym Yarema, Mathieu Luisier   +14 more
wiley   +1 more source

Repetitive control and cascaded multilevel inverter with integrated hybrid active filter capability for wind energy conversion system

Engineering Science and Technology, an International Journal, 2019
This manuscript presents a repetitive control (RC) method and 31-level reduced switch cascaded inverter topology (31-level RSCI) with an integrated hybrid active filter capability for a grid-connected doubly-fed induction generator (DFIG) based on wind ...
Buddhadeva Sahoo, Sangram Keshari Routray, Pravat Kumar Rout   +2 more
doaj   +1 more source

Receptor‐Free Identification of Toxic Gases Enabled by Hygroscopic Aqueous Salt Films

Advanced Functional Materials, EarlyView.
Water as a gas sensor coating sounds impossible—until it stops evaporating. Here, hygroscopic salt solutions (LiCl, LiBr, H3PO4) form non‐drying aqueous films on CNT chemiresistors under ambient air. Gases partition into these liquid layers, sometimes transforming into water, and generate salt‐specific resistance fingerprints across a four‐channel ...
Seongwoo Lee, Yun‐Tae Kim, Hwarang Choi, Sanghwan Park, Seongyeop Lim, Chang Young Lee   +5 more
wiley   +1 more source

Hybrid Filters To Damp Harmonic Resonance In Power Transmission Systems

Eletrônica de Potência, 2006
Problems related to harmonic propagation in transmission systems have been noticed in the last years. Passive filters, commonly used to attenuate noncharacteristic harmonics in HVDC systems, stay at risk of disconnection from the system due to ...
Lucas F. Encarnação, Alexandre G. Merçon, Hélio H. de Almeida, Emanuel L. van Emmerik, Maurício Aredes   +4 more
doaj   +1 more source

Adaptive Filter and Resonant Controller Applied to Hybrid Series Active Power Filter [PDF]

, 2012
This paper proposes a control strategy for Hybrid Active Series Power Filter (HASPF) based on a P+Resonant compensator. The proposed control uses Adaptive Notch Filter to isolate the harmonic content of the source current and a P+Resonant regulator to calculate the harmonic voltage signal necessary to properly tune the hybrid branch.
Robson Bauwelz Gonzatti, Silvia Costa Ferreira, Carlos Henrique da Silva, Luiz Eduardo Borges da Silva, Germano Lambert-Torres, Se Un Ahn   +5 more
openaire   +2 more sources

Performance comparison of hybrid active power filter for p-q theory and SVPWM technique

, 2021
Harmonic Distortion in many of the industrial applications are occur primarily owing to the enormous utilization of loads with high non-linearity like power converters, speed varying drives and arc furnaces. The power semiconductor is used to achieve the
T. M. T. Thentral, K. Vijayakumar, R. Jegatheesan   +2 more
semanticscholar   +1 more source

Spin Injection Of Exciton–Polaritons With Halide Perovskites At Room Temperature

Advanced Functional Materials, EarlyView.
A monolithic Tamm‐plasmon microcavity embedding a two‐dimensional halide perovskite enables room‐temperature spin injection of exciton‐polaritons under quasi‐resonant optical excitation. Polarization‐resolved spectroscopy reveals partial preservation of the injected spin in the lower polariton branch, while bare excitons remain fully depolarized.
Elena Sendarrubias Arias‐Camisón, Maksim Lednev, Jorge Cuadra, Raúl Gago, Luis Viña, Francisco José García Vidal, Johannes Feist, Ferry Prins, Carlos Antón Solanas   +8 more
wiley   +1 more source

Suppression factor as evaluation criterion for wide-frequency filtering equipment

The Journal of Engineering, 2019
Here, a novel harmonic suppression performance criterion, namely suppression factor (SF), is suggested for the wide-frequency power filtering equipment.
Emre Durna, Muammer Ermiş
doaj   +1 more source