Conveners
Thu-Mo-Or18 - Rotating Machines II
- Yunxing Song (GE Global Research)
- Rainer Meinke (AML Superconductivity and Magnetics)
In the EU funded EcoSwing project the world’s first large-size superconducting low-cost and lightweight multi megawatt wind turbine generator was designed, built and tested in a real wind turbine.
In order to realize this generator a technology to produce high quality HTS coils for reliable industrial use was developed and successfully qualified. Due to the high magnetic fields generated...
With the high current carrying capacity of second generation superconductors the increase of power density of electrical devices is a main research subject in the field of superconductor’s application. Several studies show a potential reduction in volume and weight of electrical rotating machines, while keeping the rated power output. Especially, compact and more lightweight generators in...
The development of off-shore wind farms will need to rely on large turbines, ideally over 10 MW, to be economically viable. Therefore, there is a need for cost effective and very reliable drive trains for large wind turbines. The first step in increasing reliability is to not use gearboxes and connect the generator directly to the turbine rotor. The very large torque required leads to very...
Offshore wind turbines are becoming an integral part of the future large-scale renewable generation initiatives. It is envisioned that to upscale offshore wind turbines in the range of 10+ MW power, superconducting (SC) technologies must be explored. Several partial and fully SC machine designs have been proposed and demonstrated for offshore direct-drive wind turbines. It is theoretically...
One promising source of clean and efficient energy comes from the ocean waves since they transport a considerable amount of energy. In the recent years there have been many highly scientific proposals for harvesting this energy in an efficient manner but in any case one of the key points to guarantee such efficiency is the selection of the PTO (Power Take Off). This conversion process is...
Abstract:
Trapped magnetic flux by high temperature superconducting tape stacks manufactured by ASCG at University of Cambridge allowed to reach the current world record of 17.7 T [1]. Despite of this undisputed success there are different challenges for such tape-stacks to operate in field cooled DC conditions [1], pulse conditions [2] as well as AC conditions, where demagnetization of...
A 10-Mvar HTS synchronous condenser is under development, including a 36-slot air-core stator, and a 4-pole HTS rotor assembled by 12 REBCO double pancake (DP) coils. In this work, a scaled superconducting magnet prototype consisting of two DP coils was designed and fabricated before full manufacturing, which has an effective length of 300 mm and was wound by 5-mm wide REBCO tapes. To avoid...
