Results 71 to 80 of about 300,411 (344)

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

open access: yesEngineering 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   +2 more
doaj   +1 more source

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

open access: yesIET 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   +5 more
doaj   +1 more source

Cu‐Based MOF/TiO2 Composite Nanomaterials for Photocatalytic Hydrogen Generation and the Role of Copper

open access: yesAdvanced Functional Materials, EarlyView.
HKUST‐1/TiO2 composite materials show a very high photocatalytic hydrogen evolution rate which increases as a function of the irradiation time until reaching a plateau and even surpasses the performance of the 1%Pt/TiO2 material after three photocatalytic cycles.
Alisha Khan   +9 more
wiley   +1 more source

Non-Integral AC Capacitor Voltage Calculation Method for Shunt Hybrid Active Power Filter

open access: yesIEEE Access, 2023
This paper introduces a novel non-integral method for calculating AC capacitor voltage in shunt hybrid active power filters (SHAPFs). These filters commonly use passive power filters (PPFs) that can introduce voltage containing harmonics into the AC ...
Hyunjae Lee, Jingeun Shon
doaj   +1 more source

Analisa Simulasi Unjuk Kerja Filter Aktif Cascaded Multilevel Inverter untuk Mengurangi Efek Harmonisa Keluaran Hybrid Bidirectional Inverter 1500 Watt [PDF]

open access: yes, 2016
Harmonics cause voltage distortion that can result in electrical equipment becomes hot quickly, the power factor is low, interference with the equipment that use relays for switching and measurement accuracy kWh-meter induction type will be reduced ...
Hamzah, A. '. (Amir)   +1 more
core  

The Alternate Arm Converter: A New Hybrid Multilevel Converter With DC-Fault Blocking Capability

open access: yes, 2013
This paper explains the working principles, supported by simulation results, of a new converter topology intended for HVDC applications, called the alternate arm converter (AAC).
Critchley, R   +6 more
core   +1 more source

Copper‐based Materials for Photo and Electrocatalytic Process: Advancing Renewable Energy and Environmental Applications

open access: yesAdvanced Functional Materials, EarlyView.
Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida   +16 more
wiley   +1 more source

Hybrid Filters To Damp Harmonic Resonance In Power Transmission Systems

open access: yesEletrônica 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   +4 more
doaj   +1 more source

Hybrid active damping of LCL-filtered grid connected converter [PDF]

open access: yes, 2016
A method for hybrid active damping in power converters connected to a weak grid using an LCL filter is proposed. It uses feedback of the grid current and capacitor voltage and is derived as an equivalent to the capacitor current feedback active damping ...
Elsayes, M.A.   +4 more
core  

Multi-stage Antenna Selection for Adaptive Beamforming in MIMO Arrays

open access: yes, 2019
Increasing the number of transmit and receive elements in multiple-input-multiple-output (MIMO) antenna arrays imposes a substantial increase in hardware and computational costs.
Aboutanios, Elias   +2 more
core   +1 more source

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