FIELD: electric power industry.
SUBSTANCE: invention relates to the electric power industry, namely to systems for generating direct current using contactless superconducting synchronous electric machines, and can be used to create systems for generating direct current with a variable frequency of rotation of the generator. The superconducting synchronous valve generator contains a cryostat with a liquid cryoagent zone and a vapor cryoagent zone, a rotor with permanent magnets, a high-temperature superconducting (HTSC) armature winding located on the stator, a rectifier unit with power valves, a power valve cooler in the form of two plates, each of which performs two functions: the function of the common wire of one of the poles of the rectifier unit and the function of equalizing the heat flux from the valves to the liquid cryoagent. The polarity sign of the poles is determined by which polarity valves (forward or reverse) are installed on each plate. The cryostat housing has inner and outer walls, between which there is a layer of thermal insulation. The cooler plates are installed on the outer surface of the inner wall of the cryostat and are separated from the wall by electrically insulating ceramic spacers. The inner wall of the cryostat contains a hole for current leads supplying an alternating three-phase voltage from the armature winding of the HTSC generator to the valve electrodes.
EFFECT: increasing the specific power indicators of a synchronous valve generator with excitation from permanent magnets on the rotor by reducing the mass and dimensions during the joint cryostatisation of the superconducting winding of the generator armature on the stator and the valves of the rectifier unit, as well as increasing the energy indicators of the generator.
7 cl, 2 dwg
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Authors
Dates
2021-11-24—Published
2021-04-28—Filed