Homopolar motor with high temperature superconductor field windings

This work is development activities of HTS motor at DOOSAN heavy industry and Korea Electrotechnology Research Institute in Korea, and is sponsored by DAPAS program which is supported by Korean government. The final aim of the project is realization of HTS motor in the field of industry such as large driving pumps, fans and compressors for utility and industrial environments. At present time, 1MW HTS motor is developed for the purpose to fully represent the design and manufacturing issues for the larger capacity machine. The machine is 2 pole and 3,600rpm, and all of the components are completely manufactured. Preliminary performance test of this machine was already finished, and is ready for long run reliability test. This paper summarizes the status of 1MW HTS motor development, such as design, construction, and experimental test. As a next step target, ship propulsion motor is considered, so that middle class such capacity as 5MW, and large class such capacity as 20MW HTS motor are conceptually designed. The outline and conceptual design results for homopolar and air-core type superconducting motor which apply to low-speed high power pod propulsion application are discussed in this paper Index Terms-air-core stator, double pancake coil, HTS field coil, rotating cryogenic cooling system, synchronous motor, 1MW class

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“…HSSMs can produce high and constant torque over a wide speed range [9] and HSSMs compared with ASSMs have merits and drawbacks.…”

Section: B Characteristicsmentioning

confidence: 99%

Status of HTS Motor Development in Korea

Kwon

Baik

Lee

et al. 2007

2007 IEEE Power Engineering Society General Meeting

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“…HTS machines can use either bulk HTS material [8], or HTS wires [9], or even a combination of both [10]. Various types of HTS rotating machine topology have been proposed, including synchronous, homopolar [11] and induction [12].…”

Section: Hts Rotating Machinesmentioning

confidence: 99%

A Direct Drive Wind Turbine HTS Generator

Lewis

Müller²

2007

2007 IEEE Power Engineering Society General Meeting

116

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The wind turbine market is growing rapidly, and there has also been a trend toward ever increasing turbine rating. Most turbines to date has used geared high speed generators, but a history of gearbox reliability problems have turned many turbine manufacturers towards direct drive generators, which are very low speed, high torque, and therefore very large. Superconducting machines offer the possibility of much more compact machines, but the high cost of HTS wire to date has prevented their application to a cost sensitive market such as wind energy. A new generation of low cost HTS wire is being developed which will allow HTS machines to compete in such a market. Consequently, Converteam are undertaking a project to design a full size direct drive HTS generator, including the manufacture and test of a scaled model generator. The 1 st stage conceptual design phase, including economic assessment, has completed which has identified solutions to the anticipated challenges and risk.

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“…A fully HTS motor with the field winding and the armature winding of superconducting wires is difficult to be manufactured due to a property of HTS wire with a thin tape shape and the cooling for making the wire a superconducting state. In previous works by other researchers, the motor of an axial type was proposed [1], also a motor of a homopolar type was proposed [2]- [4]. But it is not the fully superconducting motor because the field winding part uses superconducting wires and the armature winding part uses normal conductors.…”

Section: Introductionmentioning

confidence: 98%

Electrical Properties Analysis and Test Result of Windings for a Fully Superconducting 10 HP Homopolar Motor

Lee

Park

Kim

et al. 2012

IEEE Trans. Appl. Supercond.

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This paper describes the electrical analysis and performance test result of windings of a 10 HP homopolar fully superconducting synchronous motor. The homopolar motor has high temperature superconducting (HTS) armature and field coils. The stationary field coils make the cooling system simple and easy because there is no cryo-moving part. The design of the motor and the analysis of magnetization loss generated in the superconducting armature windings are performed by finite element method. The critical current test results of the 2G superconducting wire, the pancake coil for field winding and the race track coil for armature winding are reported.

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Homopolar motor with high temperature superconductor field windings

Cited by 37 publications

References 1 publication

Status of HTS Motor Development in Korea

Status of HTS Motor Development in Korea

A Direct Drive Wind Turbine HTS Generator

Electrical Properties Analysis and Test Result of Windings for a Fully Superconducting 10 HP Homopolar Motor

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