船舶用高温超電導回転機技術の現状と将来展望 ―船舶推進から海潮流発電まで―

抄録

Energy and environment have been extremely highlighted, since we are obliged to challenge to sustain the development of a world community against climate change. Rotating machinery provides motors or generators for use in power bases, various industries, transportation mobility in logistics. The growing population and economy make it necessary to eliminate the dependence on fossil fuels. Our team has engaged in the intensive study of superconducting rotating machinery under industry-academia collaborations. In the course of our works, the team studied the field poles and the ship propulsion motor by using 1G HTS wire. Separately, we have conducted a successive study to prove the viability of a machine with field poles composed of Gd-123 HTS bulks. Both the design and construction were carried out in TUMSAT. The machines have been studied for durability and survivability. We provide a brief review of the publicized studies of us on the HTS rotating machinery and try to concrete a potential application of HTS rotating machinery to ship propulsion and renewable energy such as marine current turbines. The concept may contribute to improving the local power supply sources on the coast and islands by reducing the environmental damage.