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Superconducting Generator/Motor Introduction

Superconducting Generator/Motor Introduction
Superconducting Generators/Motors use superconductive coils with zero electric resistance instead of conventional copper wire. Therefore, they feature low electrical resistance losses and high efficiency. The reduced heat generated from the low electric resistance losses also helps to greatly reduce the size, in turn reducing the quantity of material used for production.

In order to maintain the superconducting state of the coil, extremely low temperature cooling is needed. Therefore, Superconducting Generators/Motors require advanced thermal/electric insulation and cryogenic cooling technology.

As the high energy efficiency and resource utilization rate of Superconducting Generators/Motors conforms well to the trend for high efficiency, environmentally friendly plant, it is expected to lead the market in the future.

Principle of Superconducting Generator/Motor

The principle of operation of the Superconducting Generators/Motors is the same as that for conventional electric machines such as synchronous permanent magnet generators/motors and induction machines. However, superconducting windings can be exploited to provide a more powerful magnetic field than conventional copper coils.
Adoption of superconducting coil in rotating machines can provide high efficiency, more compact and more environment-friendly electric power applications.

Principle of Superconducting Generator/Motor

Coil cover: Supports the superconducting coil against the centrifugal force
Cooling chamber: Ultra low temperature cooling unit
Core: Non-magnetic composite stator core
Damper: Protects the superconducting coil from the high frequency magnetic field
Rotary seal: Rotary room to supply the ultra low temperature coolant
Shield: Shields the magnetic field from leakage to the surroundings
Slip ring: Applies current to the superconducting coil
Stator coil: Stator coil (copper)
Superconducting coil: Coil made of superconducting material
Vacuum jacket: Forms the vacuum insulation layer
Torque tube: Insulating structure

Current Status of Superconducting Generator/Motor Technology Development

Doosan have collaborated on the development of the technology for superconducting generators/motors with KERI (Korea Electric Research Institute), which has one of the most advanced technologies in the superconducting power system field in Korea.


  • Development of Industrial Superconducting Motor
    Period: 2004. 7 ~ 2007. 3
    Doosan Corporate R&D Institute and KERI (cooperation)

  • Development of Low Speed and High Capacity
    Superconducting Motor

    Period: 2007. 4 ~ 2011. 3
    Doosan Corporate R&D Institute and KERI (cooperation)

  • Development of Superconducting Wind Power
    Generator

    Period:(in review)
    Doosan Corporate R&D Institute

Current Status of Superconducting Generator/Motor Technology Development

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