Conveners
THU-OR5-501 Superconducting Rotating Machine, Levitation and Flywheel
- Taketsune Nakamura (Kyoto University)
- Mark Ainslie (University of Cambridge)
Presentation materials
We report experimental and theoretical results of power generation characteristics of a 1 kW class fully High Temperature Superconducting Induction/Synchronous Generator (HTS-ISG) that consist of a stator winding using REBCO coated conductor and a rotor winding using BSCCO tape.
Recent advances of the HTS material technology make it possible to realize electric machines that show high...
The cryogenic and electrical tests of a hundred-kW HTS dynamic synchronous condenser (DSC) prototype were conducted in recent months. The performance of this prototype, which was developed to verify some key technical aspects for the future 10-Mvar HTS DSC, was evaluated based on the test results. The active power test results were nearly the same with design values, which indicated that the...
A no-insulation (NI) high-temperature superconductor (HTS) winding technique has been mainly applied to direct-current (DC) high field magnets, while its application to alternative-current (AC) machines is limited. One of the potential applications of the NI HTS winding technique is a synchronous rotating machine, typically employed in aircraft and ship electric propulsion. Under an ideal...
Recent developments in low ac loss MgB2 conductors are of significant interest, given revived interest in fully superconducting (SC) generators. Evaluating AC losses in SC armature windings is critical to develop a feasible fully SC machine. In fully SC machines, SC armature windings experience rotating magnetic fields with spatial and time harmonics which has an undisputed impact on ac...
The properties of high-temperature superconductors (HTS) have inspired several applications in electric power systems. In particular, their zero resistance and high current capacity can lead to more compact and efficient generator designs.
Despite its zero resistance, HTS experiences losses under time-changing current or magnetic fields. These losses are fundamental during the design of...
Our group has successfully developed SCML-03, which was used to study the dynamic behavior of high temperature superconducting (HTS) maglev. As the experimental speed of SCML-03 can only reach 300 km/h, it is no longer competent for research tasks in a higher speed range. At present, HTS maglev has entered the key stage of engineering application. In order to study its dynamic characteristics...
Abstract: The High temperature superconducting flywheel system for energy storage is attractive due to its self-stable levitation of the rotor without control and a great reduction in the rotational loss of the bearings. It can improves the energy storage capacity and density of single machine, and will have broad application prospect in the future. This paper presents the recent progress on...
