Uninterruptible power supply and method for supplying uninterruptible power to a load

摘要

An uninterruptible power supply and method for supplying uninterruptible power to a load is described and which includes a source of substantially continuous electrical power for energizing a load which has an electrical power demand; an ultracapacitor which stores electrical energy and which meets the electrical power demand of the load upon an interruption of the substantially continuous electrical power source; and a fuel cell for supplying electrical power to the load following the at least partial discharge of the ultracapacitor.