Results 111 to 120 of about 183,779 (306)

Research on the interleaved boost converter based on magnetic coupling ripple transfer technology

open access: yesDiance yu yibiao
Aiming at application scenarios that require low current ripple, a multi-phase interleaved parallel zero-ripple coupled inductor integration method based on the ripple transfer principle to achieve zero ripple of input current is proposed. In addition, a
SHEN Hongwan   +5 more
doaj   +1 more source

Unified Fault-tolerant Control Strategy with Torque Ripple Compensation for Five-phase Permanent Magnet Synchronous Motor Based on Normal Decoupling

open access: yesEnergies, 2019
In this paper, the decoupling matrix in a five-phase permanent magnet synchronous motor (FPMSM) is rebuilt and changed, according to different open-phase conditions, which complicate the switch and control algorithm.
Guodong Sun   +3 more
doaj   +1 more source

Impact of Power Converter Current Ripple on the Degradation of PEM Electrolyzer Performances. [PDF]

open access: yesMembranes (Basel), 2022
Parache F   +8 more
europepmc   +1 more source

Planar Solid‐State Nanopores Toward Scalable Nanofluidic Integration Based on CMOS Technology

open access: yesAdvanced Engineering Materials, EarlyView.
We present a scalable silicon‐based fabrication strategy for planar solid‐state nanopores to enable their integration with complex nanofluidic systems. Prototype devices demonstrate normal voltage‐current characteristics, good noise performance, and appreciable streaming currents. Our CMOS‐compatible fabrication process offers precise geometric control
Ngan Hoang Pham   +7 more
wiley   +1 more source

A Compact Spin‐Coated Graphene UWB Antenna for Breast Tumor Detection

open access: yesAdvanced Engineering Materials, EarlyView.
A compact, spin‐coated graphene ultra‐wideband patch antenna designed for breast tumor detection, capable of distinguishing between malignant and benign tumors. This innovative antenna can serve as an effective initial screening tool, particularly in resource‐limited settings such as rural areas, where access to advanced medical equipment like MRI and ...
Raja Rashidul Hasan   +9 more
wiley   +1 more source

Performance of a 14.9-kW laminated-frame dc series motor with chopper controller [PDF]

open access: yes
Traction motor using two types of excitation: ripple free dc from a motor generator set for baseline data and chopped dc as supplied by a battery and chopper controller was tested.
Schwab, J. R.
core   +1 more source

Investigation of Laser Ablation and Brush Pre‐Treatments for AlCu Cold Roll Bonding in Oxygen‐Free Conditions

open access: yesAdvanced Engineering Materials, EarlyView.
It is shown that laser ablation pretreatment under oxygen‐free conditions enables copper–aluminium bonding at significantly lower deformation degrees and improved properties compared to mechanical brushing. Laser ablation further increases interface contact area and induces favourable residual stress states and microstructural compatibility ...
Khemais Barienti   +11 more
wiley   +1 more source

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

open access: yesAdvanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios   +5 more
wiley   +1 more source

An optimal loss-reduction control strategy for MMC considering capacitor voltage ripple suppression

open access: yesZhejiang dianli
Existing capacitor voltage ripple suppression methods primarily rely on second-harmonic circulating current injection (SHCCI). However, these methods often increase valve losses in modular multilevel converters (MMCs) , degrading operational efficiency ...
FANG Dongping   +5 more
doaj   +1 more source

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