초록 ▼

This invention relates to a power supply system having the capability of furnishing to a load sensitive to electrical faults and interruptions, electrical power for prolonged periods of time after a utility or other external power supply source thereto is interrupted. The system comprises a main A.C

This invention relates to a power supply system having the capability of furnishing to a load sensitive to electrical faults and interruptions, electrical power for prolonged periods of time after a utility or other external power supply source thereto is interrupted. The system comprises a main A.C. generator furnishing A.C. potential at a selected frequency and a selected voltage to the sensitive load, an auxiliary A.C. generator connected operatively thereto and a driving means for the generators energized with electricity from the external power supply source which is subject to outages and faults. The auxiliary generator generates A.C. potential at a much higher frequency than from the main A.C. generator and this higher frequency A.C. is supplied to a high speed A.C. induction motor and a flywheel unit in a sealed chamber, which unit can store large amounts of kinetic energy at full speed. Upon interruption of electricity from the utility or other external power source, the high speed A.C. induction motor in the sealed casing will function as a generator and feed back A.C. potential to the auxiliary generator which begins to operate as a motor and drives the main A.C. generator. A relatively small A.C. motor and flywheel unit can store and supply power to keep the main A.C. generator operating for from 1 to 20 minutes so as to ride out practically all reasonably expected power line outages. Particularly good results are obtained if the main A.C. generator is the Roesel generator of U.S. Pat. No. 4,168,459.

대표청구항 ▼

In a mechanically driven A.C. generator system capable of generating A.C. potential for a greatly prolonged period of time after external power to the driving means for the generator system fails, in combination: (a) a rotatable A.C. generator comprising a main A.C. generator for producing a main A.

In a mechanically driven A.C. generator system capable of generating A.C. potential for a greatly prolonged period of time after external power to the driving means for the generator system fails, in combination: (a) a rotatable A.C. generator comprising a main A.C. generator for producing a main A.C. potential having a selected voltage and frequency while the generator is rotating within a given RPM range and a rotatable auxiliary A.C. generator operatively connected to the main A.C. generator and producing a secondary high frequency A.C. potential, the rotational kinetic energy of the main and auxiliary generators at their normal operating speed being only sufficient to enable the main A.C. generator to rotate in the given RPM range for a short period of time after the external power to the driving means fails, (b) driving means energizable from the external source of power to rotate the main A.C. and the auxiliary A.C. generators, the driving means ceasing to cause the generators to rotate at their normal operating speed when the external source of power fails, and (c) a sealed chamber containing a high speed A.C. induction motor connected to and driving a flywheel, the high speed A.C. motor being energizable with the high frequency A.C. potential from the auxiliary A.C. generator to cause it to rotate at high speed whereby large amounts of kinetic energy are stored in the motor and flywheel, windage losses being low due to a low windage loss atmosphere being present in the sealed chamber, the A.C. motor capable of functioning as a generator when the driving means ceases to operate and the main and the auxiliary A.C. generators being to slow down, so that it will generate high frequency A.C. potential by converting the stored rotational kinetic energy in the flywheel and its rotor and to supply such high frequency A.C. to the auxiliary generator which will then function as a motor to drive the main A.C. generator for a greatly prolonged time in the given RPM range.