Circuit analysis model for AC losses of superconducting YBCO cable

Rostila, L.; Lehtonen, Juha; Masti, M.; Mikkonen, R.

doi:10.1016/j.cryogenics.2005.07.006

Cited by 10 publications

(4 citation statements)

References 15 publications

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“…The lay angle is defined as the angle between the cable axis and the tape. The lay angle is positive for a right-handed twist [4].…”

Section: Electromagnetic Designmentioning

confidence: 96%

“…In addition, the gaps are not equally sized because the tapes can move in the cable, for example due to the bending. Therefore, the effect of neighbouring tapes has not been taken account in the model [4].…”

Section: Electromagnetic Designmentioning

confidence: 99%

“…Both layers have a lay angle of 17.66 • . Therefore the unit length for a 30 m cable with 5 m of terminations is 36.7 m and the total length of CC tape used is 1652 m. In order to illustrate the performance of the cable the AC losses were estimated using a circuit theory model [4]. Figure 6 presents the calculated AC losses for the final design at three different temperatures within the operating temperature range of 70-77 K.…”

Section: Final Designmentioning

confidence: 99%

See 2 more Smart Citations

Design of a 30 m long 1 kA 10 kV YBCO cable

Rostila¹,

Lehtonen²,

Masti³

et al. 2006

Supercond. Sci. Technol.

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In this paper a 30 m long one-phase coaxial YBCO cable with 1 kA transport current and 10 kV operating voltage was designed for the Super3C project to check the feasibility of YBCO tapes for low-loss cables. The final design incorporates cryogenic, mechanical and electromagnetic aspects. The electromagnetic losses during normal operation must be minimized. The cryogenic design must also take into account the generation of heat during short circuit conditions. Mechanical restrictions set the minimum gaps between the coated conductor tapes and the minimum lay angles in order to make the cabling feasible and to enable handling of the cable. The design of the electric insulation should be according to the international standard as far as applicable. The final design has to take into account all of the above restrictions.

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“…The lay angle is defined as the angle between the cable axis and the tape. The lay angle is positive for a right-handed twist [4].…”

Section: Electromagnetic Designmentioning

confidence: 96%

Section: Electromagnetic Designmentioning

confidence: 99%

Section: Final Designmentioning

confidence: 99%

See 1 more Smart Citation

Design of a 30 m long 1 kA 10 kV YBCO cable

Rostila¹,

Lehtonen²,

Masti³

et al. 2006

Supercond. Sci. Technol.

View full text Add to dashboard Cite

show abstract

“…In optimization, the total losses are computed with fast evaluating circuit analysis model [13,14], which has been successfully applied to BSCCO cables [15][16][17] and to a short sample YBCO cable [18]. Here the losses of the individual tapes are computed based on Norris's strip model [19], which have aligned well with the recent measurements from the multilayer cables [9,20], whereas the widely used monoblock model [21] has shown to be too optimistic [9].…”

Section: Introductionmentioning

confidence: 97%