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Rodney Badcock     Institute, Department or Faculty Head 
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Rodney Badcock published an article in December 2018.
Top co-authors See all
Gerard F Fernando

123 shared publications

School of Metallurgy and Materials, University of Birmingham, Birmingham, UK

E. F. Talantsev

101 shared publications

Laboratory of precision alloys and intermetallics, M.N. Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences, Ekaterinburg, RUSSIAN FEDERATION

Zhenan Jiang

84 shared publications

Robinson Research Institute, Victoria University of Wellington, Lower Hutt New Zealand 5046 ()

Chris W. Bumby

43 shared publications

Robinson Research Institute, Victoria University of Wellington, Lower Hutt, Wellington New Zealand 5046 ()

Mike Staines

14 shared publications

HTS Team, Industrial Research Ltd, Lower Hutt New Zealand 5010 ()

84
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Publication Record
Distribution of Articles published per year 
(1995 - 2018)
Total number of journals
published in
 
26
 
Publications See all
Article 0 Reads 0 Citations Superconducting AC Homopolar Machines for High-Speed Applications Swarn Kalsi, Kent Hamilton, Robert George Buckley, Rodney Al... Published: 28 December 2018
Energies, doi: 10.3390/en12010086
DOI See at publisher website ABS Show/hide abstract
This paper presents a novel high-speed alternating current (AC) homopolar motor/generator design using stationary ReBCO excitation windings. Compact, lightweight, high-efficiency motors and generators are sought for a multitude of applications. AC homopolar synchronous machines are an ideal choice for such applications as these machines enable very high rotational frequencies. These machines include both AC armature winding and direct current (DC) excitation winding within the stationary part of the machine. The stationary excitation winding magnetizes a solid steel rotor, enabling operating speeds limited only by the mechanical stress limit of the rotor steel. The operating speeds are many multiples of conventional power 50/60 Hz machines. Significant cooling requirements limit machines of this type utilizing copper excitation windings to only a few kilowatts. However, megawatt ratings become possible when superconductor coils are used. This paper describes the design and analysis of an AC homopolar machine in the context of developing a 500 kW flywheel system to be used for energy recovery and storage in commuter rail subway systems. Different approaches are discussed for an AC armature employing conventional copper coils. Challenges of building and cooling both armature and field coils are discussed and preferred approaches are suggested. Calculations of the machine performance are then made.
Article 0 Reads 0 Citations Response Time of a Fiber Bragg Grating Based Hydrogen Sensor for Transformer Monitoring Arvid Hunze, Rodney A. Badcock, Maximilian Fisser Published: 06 December 2018
Proceedings, doi: 10.3390/proceedings2130745
DOI See at publisher website ABS Show/hide abstract
We developed and optimized a new fiber optic sensor using palladium foils attached to optical fiber Bragg gratings (FBG) for hydrogen measurements. Fifteen in parallel processed sensors were characterized and qualified in two custom tailored experimental set ups and their response to a 5% hydrogen/nitrogen gas mixture and the same gas bubbled trough transformer oil was measured. The hydrogen response is similar for both medium and close to the theoretical maximum sensitivity, but the response time was found to be very different, much slower in oil than in gas. A theoretical comparison of hydrogen diffusion trough palladium and hydrogen absorption on the palladium surface as well as a measurement of the hydrogen uptake and diffusion trough the oil to the sensor have been done to investigate the origin of the different response time. They indicate that the response time determining step is the absorption of hydrogen on the palladium surface and that this process is slowed down in oil compared to a pure gas environment.
Article 0 Reads 0 Citations AC loss simulation in a HTS 3-Phase 1 MVA transformer using H formulation Wenjuan Song, Zhenan Jiang, Xingyou Zhang, Mike Staines, Rod... Published: 01 September 2018
Cryogenics, doi: 10.1016/j.cryogenics.2018.07.003
DOI See at publisher website
Article 0 Reads 0 Citations Experimental and numerical transport AC losses in a four-strand Roebel cable bifilar stack Wenjuan Song, Zhenan Jiang, Michael Staines, Rodney Alan Bad... Published: 23 August 2018
Superconductor Science and Technology, doi: 10.1088/1361-6668/aadc92
DOI See at publisher website
PROCEEDINGS-ARTICLE 0 Reads 0 Citations Superconducting rotating machines for aerospace applications Swarn S. Kalsi, Kent A. Hamilton, Rodney A. Badcock Published: 08 July 2018
2018 Joint Propulsion Conference, doi: 10.2514/6.2018-4796
DOI See at publisher website
Article 0 Reads 0 Citations Electromagnetic Characteristic Analysis and Optimization Design of a Novel HTS Coreless Induction Motor For High-Speed O... Bin Liu, Rod Badcock, Hang Shu, Lu Tan, Jin Fang, Rodney Bad... Published: 01 June 2018
IEEE Transactions on Applied Superconductivity, doi: 10.1109/tasc.2018.2793666
DOI See at publisher website
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