Treffer: Design of SMES system with liquid hydrogen for emergency purpose
Nihon University, Tokyo 102-0073, Japan
Tokyo Institute of Technology, Tokyo 152-8550, Japan
CC BY 4.0
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Electronics
Energy
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The emergency power supply system, which is composed of a SMES system cooled by liquid hydrogen and a fuel cell (FC), is proposed as a backup for supplying electricity to hospitals, high-rise office buildings, and intelligent equipment. The capacity of the system is 2 MW for 10 hours. At a power failure, the SMES immediately functions to supply electric power at start-up for 60 seconds, and then after the FC generates electricity for 10 hours. Since the system is designed to be driven with liquid hydrogen and oxygen, it can be installed to any isolated spaces like spaceships, tunnels, and so on. The development scenario, that an 1-kW prototype, an 100-kW module as a basic unit and then a practical system will be developed step by step, is proposed. The system can be rather flexible for load requirements by adjusting the composition of the basic modules.