| 摘要 |
An emergency supplemental power supply for outage protection of critical electric equipment load powered from a commercial power grid, including a first Variable speed drive, a second Variable speed drive, a first asynchronous motor powered from the first Variable speed drive for turning a fly-wheel attached thereto to ramp-up and maintain a level of expendable kinetic energy in the fly-wheel, the fly-wheel coupled to a first synchronous alternating current generator for driving the generator in a no-load, standby condition, a second asynchronous motor coupled to a second synchronous alternating current generator, in combination, and interposed the second Variable speed drive and the critical electric equipment load, a prime mover including a coupling between the prime mover to the second asynchronous motor/second synchronous alternating current generator combination, and, a computer processor interconnected all elements for maintaining the frequency of alternating current output from the first synchronous alternating current generator slightly above the frequency of the commercial power on the grid wherein, the emergency contactor, is arranged to close upon the sagging or outage of incoming grid power to the critical load and allow the kinetic energy in the rotating fly-wheel to drive the first synchronous alternating current generator and produce a decaying alternating current.
|
