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FCT - HTSistElec

YBCO Superconducting Blocks Inserted in Electromechanical Systems. IDMEC
Funded by FCT: PTDC / EEI-EEL / 4693/2014. From April 22, 2016 to April 21, 2019. Funding of € 112,072.00.

1) Formulation of a distributed parameter model of YBCO  for simulation of electromagnetic and thermal properties. 


2) Study of the pulsed magnetization process of the YBCO superconductor cooled to 77K: the number of pulses required for the magnetization of the material;


3) Selection of optimized magnetic circuit topology for a low-speed generator of 20kW; 


4) Development and testing of a prototype of the magnetic circuit  for the generator of 20kW applied to water turbines. 

Works

Magnetization Process

Study of the pulsed magnetization process of the YBCO superconductor cooled to 77K. The following aspects are considered: the number of pulses required for the magnetization of the material; and the ability to maintain the magnetization level of the YBCO when subject to time-varying external fields;

ZFC bearing prototype:

- Experimental tests;

- Cooled with liquid nitrogen;

- One end of the shaft is supported by the ZFC bearing.

ZFC Superconduting Bearing

 

3D model of the Zero Field Cooling bearing formed by a stator with superconductors and a rotor with permanent magnets. 

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