Tightly coupling hollow high-temperature superconducting inductor

Abstract

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.

Description

technical field [0001] The invention relates to a tightly coupled hollow high-temperature superconducting reactor, which belongs to the technical field of electric engineering. Background technique [0002] With the rapid development of my country's economy, the electricity consumption in many cities is increasing year by year, the power load in the central area of ​​the city has increased sharply, the transmission and distribution capacity has increased significantly, and issues such as reducing power grid losses and improving power grid operation stability have also been raised. At present, the power grid system loses a lot in the power transmission and distribution link, so all countries are looking for solutions to reduce power grid losses. Among them, superconducting materials are one of the most important solutions to reduce power grid losses. Superconducting materials have low loss, high efficiency, and transmission current. The advantages of high density are of great...

AI Technical Summary

Problems solved by technology

However, the above three patents are only structural changes aimed at the problem of magnetic flux leakage at the end of high-temperature superconducting windings.

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