Superconduction controllable reactor

The invention discloses a superconduction controllable reactor. Superconduction control coils, working coils, a low-temperature cryostat and a magnetic shielding iron core are respectively in a hollow cylinder shape, a high-magnetic-conductivity iron core consists of an upper magnetic conducting iron core and a lower magnetic conducting iron core, the upper magnetic conducting iron core and the lower magnetic conducting iron core are respectively in a cylinder shape and are respectively and fixedly arranged on an upper cover plate and a lower cover plate of the low-temperature cryostat, a space between the two iron cores is filled and supported by epoxy resin material, the filling height of the epoxy resin is equal to 1/2 to 1/3 of the height of each working coil, the superconduction control coils are positioned in the low-temperature cryostat, and are arranged in a coaxial or similarly coaxial way from interior to exterior, the working coils sleeve the low-temperature cryostat, and are respectively positioned in the magnetic shielding iron core, and the high-magnetic-conductivity iron core is made of iron powder cores or magnetic powder cores. The superconduction controllable reactor has the advantages that the usage amount of superconduction wires is reduced, the technical complexity of the manufacturing of the low-temperature cryostat is decreased, the additional heat load on a low-temperature system caused by the vortex loss of the high-magnetic-conductivity iron core is effectively reduced, the refrigerating cost is reduced, and the safety and stability of the low-temperature system are improved.