Results 71 to 80 of about 1,019,412 (300)
“Desain dan Analisa Bidirectional Inverter sebagai Penggerak Mesin Induksi Satu Fasa dengan Sumber Baterai DC 36 Volt ” [PDF]
, 2016 Increasing oil prices and global warming, many people think to developed energy technology. One of them is the bidirectional DC-DC / DC-AC converter. Bidirectional that mean the converter can work in both directions.
\u27, N. (Nurhalim) +2 more
core
Advanced Engineering Materials, EarlyView.Four‐point bending tests are conducted in an argon atmosphere on commercial MgO‐C brick grades with and without MgO‐C recyclate from room temperature up to 1300 °C. No detrimental effect of the MgO‐C recyclates on bending strength is found. Instead, a decisive influence of the total carbon content is observed, with lower total carbon contents ...
Alexander Schramm +5 more
wiley +1 more source
A Review of Segmented Stator and Rotor Designs in AC Electric Machines: Opportunities and Challenges
EngThe use of segmented stator and rotor designs in AC electric machine construction offers several significant advantages, including a high-copper fill factor, increased torque density, improved field-weakening performance, simplified manufacturing ...
Bhuvan Khoshoo +2 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.This study investigates thermo‐chemical processes during high‐temperature testing of two commercial MgO‐C brick grades, one containing 47.5 wt.% MgO‐C recyclate. Using ETV, DTA/TG‐MS, XRD, and SEM/EDS/EBSD, mechanisms such as carbothermal reduction of magnesia, impurity incorporation into the secondary MgO surface layer, and calcium‐rich phase ...
Alexander Schramm +6 more
wiley +1 more source
Revista Tecnologia, 2009 The principle of vector control of an AC machine enables the dynamic control of AC motors, and induction motors in particular, to a level comparable to that of a DC machine.
Eber de Castro Diniz +2 more
doaj
Development of a wound rotor brushless doubly fed machine based on slot MMF harmonics [PDF]
, 2008 In the rotor winding magnetomotive force (MMF) of an ac machine, there exist so-called slot harmonics which appear in pairs and the lower order harmonic of each pair rotates in the opposite direction against the fundamental component.
Guo, Y, Lu, H, Wang, X, Zhu, J
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Advanced Engineering Materials, EarlyView.Carbon‐free inert anodes are essential for decarbonizing aluminum electrolysis. This study investigates a recyclate‐based MgO‐316L steel composite anode tested under galvanostatic Hall–Héroult conditions in cryolite at 1000°C. Microstructural analysis reveals selective MgO fluorination, spinel and oxide layer formation, electrolyte infiltration, and ...
Serhii Yaroshevskyi +7 more
wiley +1 more source
Sub-assembly experiments to determine PWM supply-induced losses in electric machines
The Journal of Engineering, 2019 This paper presents a low-cost approach to experimentally characterise the effect of the inverter supply on the losses in an electrical machine. The set-up comprises of representative subassemblies of the stator and winding, referred to as ‘motorettes ...
Jonathan Godbehere +4 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.EDX elemental map of the pre‐oxidized MgO–steel cermet anode cross section after electrolysis. The development of inert anodes for aluminum electrolysis remains challenging due to the high corrosivity of cryolite‐based melts at 950°C–1000°C. This study investigates the corrosion and process behavior of a carbon‐free MgO–steel cermet anode derived from ...
Alexander Adamczyk +7 more
wiley +1 more source
A back to back multilevel converter for driving low inductance brushless AC machines [PDF]
, 2007 Traditionally, multilevel converters are utilised in medium voltage applications, allowing the DC-link voltage to exceed the switch maximum blocking voltage.
Bingham, Chris +3 more
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