PURPOSE: To persue efficiency, and to utilize a magnetic field generated at the central section of a solenoid type coil positively by combining and systematizing a solenoid type superconductive-energy storage device and a conventional pumped storage power facility.
CONSTITUTION: A revolving-armature type rotary electric machine 2 utilizing the magnetic field of a solenoid type superconducting coil 1 as an exciting field is installed near the center of the superconducting coil 1. The coil 1 is composed of a superconductive material such as NbTi, Nb3Sn, etc. A strong magnetic field is generated at the central section of the coil 1 in the coil 1 when currents are made to flow through the coil 1. On the other hand, a motor for driving a storage pump in a pumped storage power station prepares an exciting field by a DC power to make a rotor conduct, thus generating torque. Consequently, a uniform magnetic field generated in an SMES can be used as the exciting field of the motor for driving the storage pump. An extremely rational structure in which an exciter is omitted can be adopted regarding a rotary electric machine of a certain kind. Accordingly, efficiency is pursued, and the magnetic field generated at the central section of the coil 1 is utilized positively.
KAZAWA YOSHIAKI
ISHIGAKI YUKIO
