The invention relates to a tightly
coupling hollow high-temperature superconducting
inductor comprising a short connection
bus, a nonmetallic Dewar type container, a
clockwise winding, an anticlockwise winding,
liquid nitrogen, a
refrigeration system and a
polyimide film, wherein, the
clockwise winding and the anticlockwise winding are dipped into the
liquid nitrogen which is stored in the nonmetallic Dewar type container; the short connection
bus is respectively connected with the
clockwise winding and the anticlockwise winding, and the
refrigeration system, the nonmetallic Dewar type container, the clockwise winding, the anticlockwise winding and the
liquid nitrogen are connected to form a liquid
nitrogen circulation cooling
system; the insulation material
polyimide film is arranged between turns and
layers of the clockwise winding and the anticlockwise winding. Compared with the traditional
inductor, the invention has the advantages of small volume, light weight, high reliability, low
power consumption and the like, is characterized by strong
current limiting capacity and automatic current equalizing ability, avoids the defects of oil leakage, easy burning and the like of the oil dipping
inductor and ensures
operation safety. The invention has no iron cores and no ferromagnetic saturation, and has favorable
inductance linearity.