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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

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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;

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ZFC bearing prototype:

- Experimental tests;

- Cooled with liquid nitrogen;

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

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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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