Results 81 to 90 of about 276,244 (304)
Voltage Difference-Based Field-Weakening Control of Double-Rotor Hybrid Excitation Axial Flux Switching Permanent Magnet Motor [PDF]
Iranian Journal of Electrical and Electronic EngineeringThis paper investigates the operational performance of a novel Double-Rotor Hybrid Excitation Axial Flux Switching Permanent Magnet (DRHE-AFSPM) machine, combining the strengths of Flux-Switching Machines and Hybrid Excitation Synchronous Machines.
Mehrdad Kamali +2 more
doaj
MachinesThe predictive current controller has arisen as a practicable technique for operating multiphase machines due to its fast dynamic response, control flexibility, and overall good performance.
Magno Ayala +7 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.This study develops sustainable MgO–C refractories using recycled materials and eco‐friendly fructose–tannin binders. The enhanced performance of citric acid as a cross‐linker and functional additives on mechanical and thermomechanical properties was examined. Characterization included strength tests, immersion trials, and microstructural and inclusion
Dinesh K. Gunasekar +7 more
wiley +1 more source
Meitan kexue jishuAddressing the coupled challenges of strong mine pressure and gas, induced by large-span fracture of the hard roof during the mining of thick coal seams, a systematic understanding of the disaster mechanism through multi-field coupling of the hard roof ...
Bin YU +6 more
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Operation Method of Non-Salient Permanent Magnet Synchronous Machine for Extended Speed Range
IEEE Access, 2020 This paper proposes an operation method for the extended speed range of a surface-mounted permanent magnet (SPM) synchronous machine. The proposed method is based on a novel winding changeover scheme.
Stanislav Sin +2 more
doaj +1 more source
Impact of cross-saturation in sensorless control of transverse-laminated synchronous reluctance motors [PDF]
, 2006 Synchronous reluctance (SyR) motors are well suited to a zero-speed sensorless control, because of their inherently salient behavior. However, the cross-saturation effect can lead to large errors on the position estimate, which is based on the ...
Guglielmi, Paolo +2 more
core +1 more source
Advanced Engineering Materials, EarlyView.Cladding is a proven method that boosts the surface qualities of mechanical parts by applying a layer of more durable material over a base substrate. This work responds to the needs of offshore and pressure vessels sectors by focusing on cladding a super austenitic steel onto low‐carbon steel through gas tungsten arc welding.
E. J. da Cruz Junior +6 more
wiley +1 more source
A Hybrid Excited Machine with Flux Barriers and Magnetic Bridges
Energies, 2018 In this paper, an U-shape flux barrier rotor concept for a hybrid excited synchronous machine with flux magnetic bridges fixed on the rotor is presented.
Marcin Wardach +2 more
doaj +1 more source
Frictional Instabilities and Carbonation of Basalts Triggered by Injection of Pressurized H2O- and CO2- Rich Fluids [PDF]
, 2018 The safe application of geological carbon storage depends also on the seismic hazard associated with fluid injection. In this regard, we performed friction experiments using a rotary shear apparatus on precut basalts with variable degree of hydrothermal ...
Andrea, Marzoli +6 more
core +1 more source
Biomass Native Structure Into Functional Carbon‐Based Catalysts for Fenton‐Like Reactions
Advanced Functional Materials, EarlyView.This study indicates that eight biomasses with 2D flaky and 1D acicular structures influence surface O types, morphology, defects, N doping, sp2 C, and Co nanoparticles loading in three series of carbon, N‐doped carbon, and cobalt/graphitic carbon. This work identifies how these structural factors impact catalytic pathways, enhancing selective electron
Wenjie Tian +7 more
wiley +1 more source