초록 ▼

Various embodiments of a backup power system and method may include a transfer switch, connections to primary and secondary power sources, a stored energy component, and an interconnected controller with a processor and memory. The transfer switch may provide power to an external load from a selecte

Various embodiments of a backup power system and method may include a transfer switch, connections to primary and secondary power sources, a stored energy component, and an interconnected controller with a processor and memory. The transfer switch may provide power to an external load from a selected one of the primary power source, the secondary power source, or the stored energy component. The controller may compare energy stored within the stored energy component against a first threshold relating to a maximum time necessary for the secondary power source to at least reach a predetermined minimum output level, and also to compare the stored energy level to a second threshold greater than the first threshold. The second threshold may be selected to reduce a number of on/off cycles of the secondary power source during periods of intermittent primary power fluctuation that are less severe than a prolonged loss of power.

대표청구항 ▼

What is claimed is: 1. A backup power system, the system comprising:a secondary power source;a stored energy component capable of storing energy therein; anda controller in data communication with the secondary power source and the stored energy component,wherein said controller is configured to:com

What is claimed is: 1. A backup power system, the system comprising:a secondary power source;a stored energy component capable of storing energy therein; anda controller in data communication with the secondary power source and the stored energy component,wherein said controller is configured to:compare a measured energy level of energy stored within the stored energy component against a first threshold relating to a maximum time necessary for the secondary power source to at least reach a predetermined minimum output level, andcompare the stored energy level to a second threshold greater than the first threshold, said second threshold being selected so as to reduce a number of on/off cycles of the secondary power source during periods of intermittent power fluctuation of the primary power source that are less severe than a prolonged full power loss by the primary power source,said controller being controlled and arranged so as to selectively provide power to an external load from one of a primary power source, the secondary power source, and the stored energy component in response to one or more comparison results.