Marine high temperature superconducting propulsion motor technology and application prospect Abstract

Marine high temperature superconducting propulsion motor technology and application prospect Abstract: in high temperature superconducting materials discovery and research of nearly 20 years, high temperature superconducting technology application made remarkable achievements. Especially in the ship electric propulsion field, mv level or even dozens of mw class HTS synchronous ac motor has been or will be used by the navy. New type of high temperature superconducting generators is developing in. To rotating joint look forward to, in the near future, the high temperature superconducting full electric ships will appear in people's field of vision.
Keywords: ship electric propulsion high temperature superconducting motor high temperature superconducting generators A high temperature superconducting rotating motor development present situation Because must maintain low temperature superconducting materials in ultra-low temperature environment with energy consumption and the complexity of the refrigeration system problems, such as low temperature superconducting technology on its application in the field of ship propulsion, always not optimistic assessment. Improve the superconducting material critical temperature is the only way of superconducting technology is widely applied. At present, a new generation of superconducting material is not only far beyond the 77 k liquid nitrogen the box, and electrical and mechanical properties are greatly upgrade, the use of high temperature superconducting material and to rotary union consider the refrigeration power rating than low temperature superconducting material much lower. Meanwhile, relatively simple, low cost, higher efficiency of the refrigeration system development is also a significant progress. Therefore, these factors make high temperature superconducting wire in motor business development and application, whether in technology, or in the economy are presenting its applicability and feasibility. For a long time, many countries for high temperature superconducting technology research has been given great attention and support.
As early as in 1987, the United States department of energy will entrust Rockwell automation/Reliance electric company is high temperature superconducting technology in industrial electrical field the possibility of application research. The goal locking in the research and development of more than 1000 horsepower superconducting ac synchronous motor system technology, and commercialization. According to the department of energy's evaluation, 1000 horsepower motor power level is the most common industrial application of the power level, this kind of power levels of motor energy consumption accounts for more than 30% of the electricity consumption.
From a technical point of view, the motor of 70% is very suitable for use of high temperature superconducting technology. If the superconducting motor instead of traditional motor, estimates that will save more than 600 million dollars. To fiber optic rotary joint the world, the power level of high temperature superconducting motor market share as much as $300 million every year meter value above. Therefore, 1000 horsepower high temperature superconducting motor became high temperature superconducting motor market application milestone. And from the technical stratification plane to see, obtain 1000 horsepower of high temperature superconducting motor design of technical experience, indicates the master into the high power high temperature superconducting motor design the gold key.