Superconducting rotating machine, a superconducting coil, and a superconducting generator for use in a lighting equipment using solar energy

An apparatus, comprising:

• a superconducting rotating apparatus, comprising
• a cylindrical frame having an inner peripheral surface,
• a cylindrical stator disposed in said cylindrical frame around said inner peripheral surface thereof, said cylindrical stator comprising a plurality of permanent magnet rings, wherein each said permanent magnet ring comprises three arcuate permanent magnets that have outer arcuate surfaces with a radius approximately equal to a radius of said inner peripheral surface of said cylindrical frame, and wherein said three arcuate permanent magnets have said outer arcuate surfaces thereof engaging said inner peripheral surface of said cylindrical frame, and a pair of end covers at opposite ends of said cylindrical stator,
• said cylindrical stator having an inner surface,
• a stator coil disposed around said inner surface of said cylindrical stator, said stator coil comprising a primary coil and a secondary coil, said primary coil comprising extra fine fine Cu filaments and said secondary coil comprising extra filaments of superconducting alloy containing Cu, Nb.sub.3 Sn, V.sub.3 Ga, V.sub.3 Ge, Bi, Ca, CuO, and Sr, said secondary coil being covered with a Cu layer, and said Cu layer being covered with an insulating layer,
• a rotor disposed concentrically and rotatably inside said cylindrical stator, said rotor having a cylindrical clearance around an outer periphery thereof spacing said rotor from said stator coil, and said rotor comprising a non-magnetic shaft, a cylindrical non-magnetic holder integral with and disposed around said non-magnetic shaft, a plurality of permanent magnet rings disposed around said non-magnetic shaft, wherein each said permanent magnet ring of said rotor comprises a pair of arcuate permanent magnets, and a pair of non-magnetic end disks at opposite ends of said rotor,
• a pair of non-magnetic disk end covers on opposite ends of said cylindrical frame, each said disk end cover comprising a bearing supporting an end of said non-magnetic shaft of said rotor, and
• an auxiliary motor connected with one said end of said non-magnetic shaft of said rotor;
• a solar array having a desired angular position relative to the sun;
• an anti-overcharge circuit connected to said solar array;
• a storage battery connected to said anti-overcharge circuit;
• an anti-overdischarge circuit connected to said anti-overcharge circuit, said anti-overdischarge circuit having an anti-overdischarge meter and an anti-chattering circuit connected therewith;
• a control unit connected to said anti-overdischarge circuit, said control unit having an automatic-manual transfer switch and an external tumbler switch;
• a sunset illuminance detecting circuit connected to said control unit;
• a timer connected to said sunset illuminance detecting circuit;
• a D/A inverter connected to said control unit;
• and
• lighting equipment connected to said D/A inverter;
• wherein said superconducting rotating apparatus is connected to and between said control unit and said D/A inverter.