Results 81 to 90 of about 347,837 (349)

Capacitor voltage estimation for predictive control algorithm of flying capacitor converters [PDF]

open access: yes2009 IEEE International Conference on Industrial Technology, 2009
Multilevel Converters have emerged as a promising alternative to traditional two level converters, especially flying capacitor converters because of the fact that this topology requires only a main dc-link voltage and presents a easy way to increase the output voltage levels by increasing the number of cells.
Aguilera, Ricardo P., Quevedo, Daniel E.
openaire   +2 more sources

Biodegradable and Recyclable Luminescent Mixed‐Matrix‐Membranes, Hydrogels, and Cryogels based on Nanoscale Metal‐Organic Frameworks and Biopolymers

open access: yesAdvanced Functional Materials, EarlyView.
The study presents biodegradable and recyclable mixed‐matrix membranes (MMMs), hydrogels, and cryogels using luminescent nanoscale metal‐organic frameworks (nMOFs) and biopolymers. These bio‐nMOF‐MMMs combine europium‐based nMOFs as probes for the status of the materials with the biopolymers agar and gelatine and present alternatives to conventional ...
Moritz Maxeiner   +4 more
wiley   +1 more source

Simple time domain analysis of a 4-level H-bridge flying capacitor converter voltage balancing [PDF]

open access: yes, 2010
Flying Capacitor (FC) multilevel Pulse Width Modulated (PWM) converters are an attractive choice due to the natural balancing property of the capacitor voltages.
Melkebeek, Jan   +3 more
core   +2 more sources

Laser‐Induced Graphene from Waste Almond Shells

open access: yesAdvanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova   +9 more
wiley   +1 more source

Ripple Analysis and Capacitor Voltage Balancing of Five-Level Hybrid Clamped Inverter (5L-HC) for Medium-Voltage Applications

open access: yesIEEE Access, 2019
The five-level hybrid clamped inverter (5L-HC) is a promising new topology for medium-voltage applications. However, to minimize the capacitors and ensure good performance of the converter, capacitor voltage ripples, as well as voltage balancing control,
Ze Wang   +4 more
doaj   +1 more source

Realization of a Generalized Switched-Capacitor Multilevel Inverter Topology with Less Switch Requirement

open access: yesEnergies, 2020
Conventional multilevel inverter topologies like neutral point clamped (NPC), flying capacitor (FC), and cascade H bridge (CHB) are employed in the industry but require a large number of switches and passive and active components for the generation of a ...
Anzar Ahmad   +6 more
doaj   +1 more source

Power electronics options for large wind farm integration : VSC-based HVDC transmission [PDF]

open access: yes, 2006
This paper describes the use of voltage source converter based HVDC transmission (VSC transmission) system for grid integration of large wind farms over long distance.
Sasse, C., Xu, L., Yao, L.
core   +2 more sources

Highly Sensitive Electrochemical Biosensor Based on Hairy Particles with Controllable High Enzyme Loading and Activity

open access: yesAdvanced Functional Materials, EarlyView.
For the first time, a highly sensitive electrochemical biosensor based on SiO2‐based hairy particles with a grafted PDMAEMA polymer brush containing a quantifiable and large amount of immobilized Laccase is reported. The fabricated biosensor exhibits a sensitivity of 0.14 A·m⁻¹, a limit of detection (LOD) of 0.1 µm, and a detection range of 0.3–750 µm,
Pavel Milkin   +7 more
wiley   +1 more source

Two Independent Single-Loop Voltage Mode Control Method for 3-Level Buck Converter

open access: yesIEEE Access
Compared to a basic buck converter, the 3-level buck converter operates with the output inductor at twice the switching frequency. Additionally, the voltage across its flying capacitor contributes to reducing the slope of the inductor current.
June-Bong Jeong   +3 more
doaj   +1 more source

Single-Phase Five-Level Flying-Capacitor Rectifier Using Three Switches

open access: yesIEEE Open Journal of Power Electronics, 2020
In this paper, a unidirectional single-phase five-level PWM rectifier based on flying-capacitor topology operating as PFC is proposed. The main feature is the fact that the proposed converter has three active switches, therefore offering a cost reduction
Michel Andrey Freitas de Souza Kohler   +1 more
doaj   +1 more source

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