A superconducting controllable reactor

Abstract

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.

Description

technical field [0001] A new type of superconducting controllable reactor belongs to a reactive power control and adjustment device for a power grid, and particularly relates to a device that realizes large capacity and multi-working gear compensation for reactive power of a power grid by adjusting its own inductance value. Background technique [0002] The State Grid Corporation of China proposed in the "Twelfth Five-Year Plan" that building a strong and smart grid is the development direction of the State Grid's power construction for a period of time in the future. Building a strong smart grid puts forward higher requirements for the safe and stable operation of the grid. Reactive power compensation can improve the stability of the grid, increase the transmission capacity, and suppress the system overvoltage. At present, one of the most widely used reactive power compensation devices in the power grid is the controllable reactor. Controllable reactor is a special reacti...

AI Technical Summary

Problems solved by technology

For a general superconducting controllable reactor with an iron core, the low-temperature Dewar generally adopts a ring structure and is placed outside the iron core. The low-temperature Dewar of this structure will increase the difficulty and cost of manufacturing technology of the low-temperature Dewar, and at the same time , the superconducting coil of the superconducting controllable reactor with this structure consumes a large amount of wire, resulting in higher overall production cost and poor economy

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