Recently, the first domestic 1000kW high-temperature superconducting machine developed by China Shipbuilding Industry Corporation's 712 Research Institute passed the acceptance of the Ministry of Science and Technology project in Beijing. It indicates that China has already possessed the design and manufacturing capabilities of megawatt-class high-temperature superconducting machines, and has become one of the few countries in the world that masters the key technology of high-temperature superconducting machines.
High-temperature superconducting materials have zero resistance characteristics at low temperatures, and their current-carrying capacity is far superior to ordinary copper wires. Large-capacity high-temperature superconducting machines using high-temperature superconducting magnets have significant advantages such as high torque density and large single-machine limit capacity , Its volume and weight are estimated to be 1/2 and 1/3 of conventional motors respectively. It has the advantages of light weight, small size, high efficiency, low noise, easy maintenance, flexible operation, large limit capacity of single machine, etc. And new energy have bright application prospects. 7
The research of “1000kW high-temperature superconducting motor†of 12 Research Institute has broken through the main key technology of high-temperature superconducting machine. The prototype has completed multi-operating test, and the full-load operation at 500 rpm / 1000kW, including low-temperature system power consumption The motor efficiency is 95%, the technical indicators meet the design requirements, the motor and low temperature system are stable, and the overall index reaches the international advanced level.
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