Energy Expenditures in a High-Voltage Three-Phase AC Superconducting Cable

  • Yury L. BUYANOV
  • Vladimir V. ZHELTOV
  • Sergey I. KOPYLOV
  • Andrey Yu. ARKHANGEL’SKIY
  • Nikolay N. BALASHOV
  • Nikolay Ye. KABDIN
  • Lyubov’ N. KOPYLOVA
DOI: https://doi.org/10.24160/0013-5380-2020-9-11-19
Keywords: high-temperature superconducting power cable, cryogenic cooling system, energy expenditures in a cable

Abstract

The basic circuit diagrams of cryogenic installations that can ensure the necessary temperature operation conditions of power cables on the basis of high-temperature superconductors are considered. Formulas for calculating the energy consumed for cooling the cable by means of closed- and open-type cryogenic installations are determined. The hydraulic losses determining the energy expenditures for pumping the cryoagent in the cable cryostat with corrugated shells are analyzed. The components of the power required to compensate for the losses in transmitting electric energy via a superconducting cable are determined. As a result, a procedure for calculating energy expenditures for cryogenic installations in different cycles of their operation is proposed. The hydraulic friction coefficient in the flexible cryostat shells is determined. The available empirical relations for estimating the hydraulic friction coefficient in a flexible cryostat are compared with one another.

Author Biographies

Yury L. BUYANOV

(Joint Institute for High Temperatures of the Russian Academy of Sciences (JIHT RAS), Moscow, Russia) – Leading engineer. Cand. Sci. (Eng.)

Vladimir V. ZHELTOV

(JIHT RAS, Moscow, Russia) – Senior Scientist, Cand. Sci. (Phus. Math.)

Sergey I. KOPYLOV

(JIHT RAS, Moscow, Russia) – Head of the Laboratory, Dr. Sci. (Eng.)

Andrey Yu. ARKHANGEL’SKIY

(JIHT RAS, Moscow, Russia) – Leading Engineer, Cand. Sci. (Eng.)

Nikolay N. BALASHOV

(JIHT RAS, Moscow, Russia) – Scientist

Nikolay Ye. KABDIN

(Russian State Ograrion University of the Moscow Agricultural Academy named K.A. Timiryazev) – Head of the Department, Cand. Sci. (Eng.)

Lyubov’ N. KOPYLOVA

(NRU «Moscow Power Engineering Institute», Moscow, Russia) – Associate Professor

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1. Yu.L. Buyanov. The thermal state of high-temperature superconducting current leads during disarrangement of superconductivity. Russian Electrical Engineering. March, 2019, v. 90, No. 3, pp. 246–255, DOI: 10.3103/s106837/2/9030064.

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Published
2020-04-07
Issue
No 9 (2020): Issue № 9
Section
Article