1 MVA HTS-2G Generator for Wind Turbines

The calculation, design simulations and design performance of 1 MVA HTS-2G (second-generation high-temperature superconductor) Generator for Wind Turbines were done in 2013-2014 [1]. The results of manufacturing and testing of 1 MVA generator are presented in the article. HTS-2G field coils for the...

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Bibliographic Details
Published in:IOP conference series. Earth and environmental science 2017-10, Vol.87 (3), p.32018
Main Authors: Kovalev, K L, Poltavets, V N, Ilyasov, R I, Verzhbitsky, L G, Kozub, S S
Format: Article
Language:English
Subjects:
Coils (windings)
Critical current (superconductivity)
Ferromagnetism
Field coils
High temperature superconductors
Magnetic fields
Parameters
Rotors
Turbines
Wind power
Wind turbines
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Summary:The calculation, design simulations and design performance of 1 MVA HTS-2G (second-generation high-temperature superconductor) Generator for Wind Turbines were done in 2013-2014 [1]. The results of manufacturing and testing of 1 MVA generator are presented in the article. HTS-2G field coils for the rotor were redesigned, fabricated and tested. The tests have shown critical current of the coils, 41-45 A (self field within the ferromagnetic core, T = 77 K), which corresponds to the current of short samples at self field. Application of the copper inner frame on the pole has improved internal cooling conditions of HTS coil windings and reduced the magnetic field in the area, thereby increased the critical current value. The original construction of the rotor with a rotating cryostat was developed, which decreases the thermal in-flow to the rotor. The stator of 1 MW HTS-2G generator has been manufactured. In order to improve the specific weight of the generator, the wave (harmonic drive) multiplier was used, which provides increasing RPM from 15 RPM up to 600 RPM. The total mass of the multiplier and generator is significantly smaller compared to traditional direct-drive wind turbines generators [2-7]. Parameters of the multiplier and generator were chosen based on the actual parameters of wind turbines, namely: 15 RPM, power is 1 MVA. The final test of the assembled synchronous generator with HTS-2G field coils for Wind Turbines with output power 1 MVA was completed during 2015.
ISSN:1755-1307
1755-1315
DOI:10.1088/1755-1315/87/3/032018