Search Results - "Weeber, K."

Development status of rotating machines employing superconducting field windings by Kalsi, S.S., Weeber, K., Takesue, H., Lewis, C., Neumueller, H.-W., Blaugher, R.D.

“…Superconducting rotating machines have looked promising since multifilamentary niobium-titanium (NbTi) superconductors became available in the mid-1960s. Both…”
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Large Scale Superconducting Wind Turbine Cooling by Stautner, W., Fair, R., Sivasubramaniam, K., Amm, K., Bray, J., Laskaris, E. T., Weeber, K., Douglass, M., Fulton, L., Hou, S., Kim, J., Longtin, R., Moscinski, M., Rochford, J., Rajput-Ghoshal, R., Riley, P., Wagner, D., Duckworth, R.

“…General Electric proposes to apply transformational technology in the form of low-temperature superconductivity to the design of direct-drive wind turbine…”
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Use of a permeance model to predict force harmonic components and damper winding effects in salient-pole synchronous machines by Knight, A.M., Karmaker, H., Weeber, K.

“…This paper presents a combined finite-element and analytical modeling technique for the prediction of force-density harmonics in salient-pole synchronous…”
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AC losses in a high temperature superconducting generator by Sivasubramaniam, K., Xianrui Huang, Ryan, D., Weeber, K., Bray, J.W., Laskaris, E.T., Tomaino, L., Fogarty, J.M., Ashworth, S.

“…As part of the DOE-SPI funded project a commercial HTS utility-size generator is being developed based on GE's iron core superconducting generator technology…”
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Measurements of temperature dependence of partial discharge in air gaps between insulated Bi-Sr-Ca-Cu-O tapes by Grabovickic, R., James, D.R., Sauers, I., Ellis, A.R., Irwin, P.C., Weeber, K., Li, L., Gadre, A.D.

“…Partial discharge (PD) in trapped air-filled gaps between two adjacent insulated high temperature superconducting (HTS) tapes made of Bi/sub 2/Sr/sub 2/Ca/sub…”
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A high-speed HVDC breaker topology with integral voltage-changing capability by Sellick, RL, Agamy, MS, Hao, L, Weeber, KR

“…GE Global Research center has developed a system topology that has been validated experimentally by constructing hardware prototypes, to combine the HVDC…”
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Geometric parametrization and constrained optimization techniques in the design of salient pole synchronous machines by Weeber, K., Hoole, S.R.H.

“…The shape optimization of magnetic devices is efficiently performed with field calculation and sensitivity analysis based on the finite element method. Several…”
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On-line capacitance and dissipation factor monitoring of AC stator insulation by Younsi, K, Neti, P, Shah, M, Zhou, J Y, Krahn, J, Weeber, K, Whitefield, C D

“…A new on-line technique for monitoring the insulation condition of ac motor and generator stator windings is proposed. The approach uses a newly developed…”
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Fictitious minima of object functions, finite element meshes, and edge elements in electromagnetic device synthesis by Ratnajeevan, S., Hoole, H., Weeber, K., Subramaniam, S.

“…The authors points out the nature of the discontinuities in the object function as a result of mesh error. That is, they are artificial and have no physical…”
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Development of an electromagnetic shield against proximity heating around the terminal leads of a large hydrogenerator by Weeber, K.

“…Due to space restrictions in the power house of a 612 MVA hydrogenerator, the terminal leads are routed through a magnetic steel structure. Without adequate…”
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The subregion method in magnetic field analysis and design optimization by Weeber, K., Hoole, S.R.H.

“…A method that subdivides the finite element solution region into subregions is introduced for the efficient synthesis of magnetic devices. The coefficient…”
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Determination of dynamic parameters of large hydro-generators by finite-element simulation of three-phase sudden short-circuit tests by Weeber, K.

“…A salient-pole synchronous machine model based on a time-stepping finite-element (FE) formulation implementing rotor motion and external circuit elements is…”
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Structural design optimization as a technology source for developments in the electromagnetics domain by Weeber, K., Hoole, S.R.H.

“…Recent developments in the electromagnetic domain are placed in context with experiences in structural engineering, and the literature available is surveyed…”
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Pancho trial (p53-adapted neoadjuvant chemotherapy for resectable esophageal cancer) completed—mutation rate of the marker higher than expected by Kappel-Latif, Sonja, Zacherl, Johannes, Hejna, Michael, Westerhoff, Maria, Tamandl, Dietmar, Ba-Ssalamah, Ahmed, Mittlböck, Martina, Wolf, Brigitte, Wrba, Friedrich, Kührer, Irene, Pluschnig, Ursula, Schoppmann, Sebastian F., Függer, Reinhold, Zwrtek, Ronald, Glaser, Karl, Karner, Josef, Längle, Friedrich, Wenzl, Etienne, Roka, Rudolf, Öfner, Dietmar, Tschmelitsch, Jörg, Hold, Michael, Keil, Felix, Gnant, Michael, Kandioler, Daniela

“…Summary Background In operable esophageal cancer patients, neoadjuvant therapy benefits only those who respond to the treatment. The • Pancho trial represents…”
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Design sensitivity for skin effect and minimum volume optimization of grounded and ungrounded shields by Weeber, K., Johnson, E., Sinniah, S., Holte, K., Sabonnadiere, J.C., Hoole, S.R.H.

“…The aim of the present work is twofold: (a) to extend the design sensitivity analysis of finite-element eddy current formulations to the situation of…”
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High Frequency Life Testing of Stator Coil Insulation by Manns, D., Galioto, S., Weeber, K., Yagielski, J.

“…This paper focuses on the development of insulation systems for high-speed and hence high-frequency electric motors with multi-MW ratings. With the growing…”
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Partial discharge and accelerated pulsed aging of insulation between parallel plane-plane stainless steel electrodes and between Bi-Sr-Ca-Cu-O tapes at room temperature by Grabovickic, R., James, D.R., Sauers, I., Ellis, A.R., Irwin, P.C., Weeber, K., Li, L., Gadre, A.D.

“…Partial discharge (PD) and pulsed aging of CTFE thin films between two parallel plane-plane stainless steel electrodes and PTFE lapped tapes between two…”
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The effect of foot orthoses on oxygen consumption while cycling by Hice, G A, Kendrick, Z, Weeber, K, Bray, J

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Advanced permanent magnet machines for a wide range of industrial applications by Weeber, K R, Shah, M R, Sivasubramaniam, K, El-Refaie, A, Ronghai Qu, Stephens, C, Galioto, S

“…This paper provides an overview of four distinct applications of advanced permanent magnet machine technologies. It describes the specific application benefits…”
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Comment on "A skin depth-independent finite element method for eddy current problems" by S. Keran and J.D. Lavers by Weeber, K., Hoole, S.R.

“…Comments on errors in the above mentioned paper (see ibid., vol.MAG-22, no.5, p.1248-50, 1986) presenting the skin-depth-independent finite-element method. The…”
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