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Armature Conductor

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B. Masri – One of the best experts on this subject based on the ideXlab platform.

  • Design Evaluation of Conventional and Toothless Stator Wind Power Axial-Flux PM Generator
    IEEE Transactions on Magnetics, 2017
    Co-Authors: Abdul-rahman Arkadan, T. M. Hijazi, B. Masri

    Abstract:

    This work evaluates the effects of stator design on Armature copper Conductors eddy current loss and stator core losses of axial-flux permanent magnet (AFPM) generators for use in wind power generation. The approach used to predict the performance characteristics of AFPM generators employs a quasi-3-D finite element analysis (FEA) technique, where computations are done using 2-D FEA. Two generator design configurations are considered. The first has a conventional type stator design and the second has a toothless stator design. The losses are estimated and compared for both designs. In addition, an assessment of stator Conductors design options, for both stator design configurations, is conducted with the aim of minimizing Armature Conductor eddy current loss.

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Yingchun Gui – One of the best experts on this subject based on the ideXlab platform.

  • Design and Testing of a Two-Turn Electromagnetic Launcher
    IEEE Transactions on Plasma Science, 2011
    Co-Authors: Weiqun Yuan, Ping Yan, Yaohong Sun, Chuanpu Liu, Yingchun Gui

    Abstract:

    A multiturn railgun was designed to obtain high inductance gradient. It was made up of two pairs of copper rails. These two pairs were arranged up and down in space and were separated by the insulating structures. Each pair was an independent circuit with its own Armature Conductor. They were connected serially at the breech with a crossover. The two parallel Armatures constitute the projectile with an insulating container. The bore size was 30 mm 60 mm. The rails were tightened with two pairs of insulating wedges against insulating spacers. Two up and down wedges constituted a frictional pair. The upper wedges would move down when the barrel containment was tightened gradually through the bolts, and they would produce enough preload to the rails to keep the gaps of each rail pair to 30 mm. The magnetic field in the barrel was simulated, and the mean inductance gradient was estimated to be 1.3 . The B-dot probes were also installed to diagnose the movement of the projectile in the barrel. Launch experiments with a peak current of 299 kA were conducted to test the performance of this two-turn electromagnetic launcher.

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W. James Carr – One of the best experts on this subject based on the ideXlab platform.

  • ac Loss analysis for superconducting generator Armatures wound with subdivided Y–Ba–Cu–O coated tape
    Cryogenics, 2001
    Co-Authors: Charles E. Oberly, Larry Long, Gregory L. Rhoads, W. James Carr

    Abstract:

    Abstract Advances in Y–Ba–Cu–O coated thin film tape may allow narrow filaments with very high current density on a thin metal alloy substrate which is separated from the superConductor by a dielectric buffer. These tapes will exhibit minimized ac loss by subdividing the Y–Ba–Cu–O layer with barriers which exhibit high electrical resistance. Assuming a fully penetrated magnetic field, low loss Conductor concepts were incorporated into 1 MW Armature designs for various configurations of Y–Ba–Cu–O Conductors over the frequency range 50–1000 Hz. Low ac loss Armature Conductor designs are developed for megawatt class generators loss for both a 50–60 Hz utility application and a higher frequency aircraft application. Conductor design tradeoffs are discussed and ac loss minimization techniques compatible with realistic Y–Ba–Cu–O coated Conductor processing are considered. The ac loss in Y–Ba–Cu–O Armature windings of a synchronous alternator may for the first time permit practical, lightweight all-cryogenic generators which can deliver ⩾ megawatt at frequencies much greater than 50–60 Hz.

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