초록

The present invention is an energy generating system which uses Lithium Metal Polymer (LMP) batteries in conjunction with a microturbine, a fuel cell, and commercial electrical power. The LMPs provide uninterruptible power when one or more of the other power systems fail.

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What is claimed is: 1. A DC power-supply system comprising: a lithium comprised energy-storage device; a fuel-cell utilizing hydrogen to generate electrical power; a turbine generator producing AC power; a utility supplying AC power, wherein said AC power is selected and converted to DC power by a

What is claimed is: 1. A DC power-supply system comprising: a lithium comprised energy-storage device; a fuel-cell utilizing hydrogen to generate electrical power; a turbine generator producing AC power; a utility supplying AC power, wherein said AC power is selected and converted to DC power by a converter. 2. The system of claim 1 wherein said first gas is natural gas. 3. The system of claim 2 wherein said turbine is adapted to receive a utility-provided source of natural gas. 4. The system of claim 2 wherein said turbine is adapted to receive a stored source of natural gas which is stored in tanks on site. 5. The system of claim 3 including a control system which is operable to switch between said utility provided and said stored sources of natural gas depending on availability. 6. The system of claim 5 wherein said fuel cell comprises at least one proton exchange membrane (PEM). 7. The system of claim 5 wherein said lithium-comprised energy storage device, an output of said conversion device, and an output of said fuel cell are all electrically connected. 8. A method of supplying DC power utilizing the apparatus of claim 1. 9. The system of claim 5 further including a control system which is operable to switch between said turbine generater and said imported sources of AC based on power availability. 10. The system of claim 1 wherein said conversion device is a rectifier. 11. The system of claim 1 wherein said lithium-comprised energy storage device is a lithium cell. 12. The system of claim 11 wherein said lithium cell is a lithium-metal-polymer battery. 13. The system of claim 11 wherein said lithium cell is a lithium-ion battery. 14. A method of supplying power comprising: providing a commercial utility AC power; combusting gas in turbine generator for production of AC power; providing for the utilization of a lithium-comprised energy-storage device to provide a source of power in addition to said AC power; providing for the utilization of a fuel-cell that utilizes hydrogen to generate electrical power; and selecting and converting said turbine generator or said utility AC power to DC power by a converter. 15. A method of supplying a DC power comprising: providing a turbine generator utilizing a combustion gas for production of AC power; providing a commercial utility AC power, providing a lithium-comprised energy-storage device to provide an additional source of power; providing a fuel-cell utilizing hydrogen to generate electrical power; and selecting and converting said turbine generator or said utility AC power to DC power by a converter. 16. The method of claim 15 comprising: providing a lithium-metal-polymer battery to serve as said lithium-comprised energy storage device. 17. The method of claim 15 comprising: providing a lithium-ion battery to serve as said lithium-comprised energy storage device.