Emergency supplemental power supply for outage protection of critical electric loads
First Claim
1. An emergency supplemental power supply for outage protection of critical electric equipment load powered from a commercial power grid, comprising:
- a) a variable speed drive with input from said commercial power grid in parallel with the critical electric equipment load;
b) an asynchronous motor powered from said variable speed drive for turning a fly-wheel attached thereto to build and maintain a level of expendable kinetic energy in said fly-wheel;
c) means for coupling said fly-wheel to a synchronous alternating current generator for driving said generator in a no-load, standby condition;
d) first and second normally-closed commercial power contactors, for opening and isolating the commercial power grid and for opening and isolating said variable speed drive upon commercial power interruption, and a third normally-open interrupt contactor;
e) a computer processor controller interconnected said first, second, and third contactors, said variable speed drive, and said synchronous alternating current generator, for maintaining the frequency of alternating current output from said synchronous alternating current generator slightly above the frequency of the commercial power on the grid and in a ready condition for input to the critical electric equipment load;
f) said third interrupt contactor, interposed the output of said synchronous alternating current generator and the critical electric equipment load, arrange to close upon interruption of the commercial electric power and opening of said first and second contactors, to allow the kinetic energy in said rotating fly-wheel to drive said synchronous alternating current generator, without further input power from said variable speed drive or said synchronous motor, and pass a regulated alternating current and voltage and a decaying frequency from said synchronous alternating current generator to the load.
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Accused Products
Abstract
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.
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Citations
26 Claims
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1. An emergency supplemental power supply for outage protection of critical electric equipment load powered from a commercial power grid, comprising:
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a) a variable speed drive with input from said commercial power grid in parallel with the critical electric equipment load;
b) an asynchronous motor powered from said variable speed drive for turning a fly-wheel attached thereto to build and maintain a level of expendable kinetic energy in said fly-wheel;
c) means for coupling said fly-wheel to a synchronous alternating current generator for driving said generator in a no-load, standby condition;
d) first and second normally-closed commercial power contactors, for opening and isolating the commercial power grid and for opening and isolating said variable speed drive upon commercial power interruption, and a third normally-open interrupt contactor;
e) a computer processor controller interconnected said first, second, and third contactors, said variable speed drive, and said synchronous alternating current generator, for maintaining the frequency of alternating current output from said synchronous alternating current generator slightly above the frequency of the commercial power on the grid and in a ready condition for input to the critical electric equipment load;
f) said third interrupt contactor, interposed the output of said synchronous alternating current generator and the critical electric equipment load, arrange to close upon interruption of the commercial electric power and opening of said first and second contactors, to allow the kinetic energy in said rotating fly-wheel to drive said synchronous alternating current generator, without further input power from said variable speed drive or said synchronous motor, and pass a regulated alternating current and voltage and a decaying frequency from said synchronous alternating current generator to the load. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An emergency supplemental power supply for outage protection of critical electric equipment load powered from a commercial power grid, comprising:
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a) a first variable speed drive with input from said commercial power grid;
b) a second variable speed drive interposed in series with the commercial power grid and the critical electric equipment load;
c) an asynchronous motor powered from said first variable speed drive for tuning a fly-wheel attached thereto to build and maintain a level of expendable kinetic energy in said fly-wheel;
d) means for coupling said fly-wheel to a synchronous alternating current generator for driving said generator in a no-load, standby condition;
e) first and second normally-closed commercial power contactors, for opening and isolating the commercial power grid and for opening and isolating said first variable speed drive upon commercial power interruption, and a third, normally-open interrupt contactor;
f) a computer processor controller interconnected said first, second, and third contactors, said first variable speed drive, and said synchronous alternating current generator, for maintaining the frequency of alternating current output from said synchronous alternating current generator slightly above the frequency of the commercial power on the grid and in a ready condition for input to said second variable speed drive to provide clean, conditioned power to the critical electric equipment load;
g) said third interrupt contactor, interposed the output of said synchronous alternating current generator and the input of said second synchronous drive, arranged to close upon interruption of the commercial electric power and opening of said first and second contactors, to allow the kinetic energy in said rotating fly-wheel to drive said synchronous alternating current generator, without further input power from said first variable speed drive or said synchronous motor, and pass a regulated alternating current and voltage and a decaying frequency from said synchronous alternating current generator to said second variable speed drive for input to the critical electric equipment load, h) wherein the input feed line of said second interrupt contactor, interposed said synchronous alternating current generator and said second variable speed drive, is separate from the input feed line of said power grid so that, power from said rotating fly-wheel drives said synchronous alternating current generator and produces a regulated alternating current and a decaying frequency from said synchronous alternating current generator to said second variable speed drive for supplementing the commercial power to the load. - View Dependent Claims (8, 9, 10)
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11. An emergency supplemental power supply for outage protection of critical electric equipment load powered from a commercial power grid, comprising:
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a) a first variable speed drive in parallel with the critical electric equipment load;
b) a second variable speed drive interposed the commercial power grid and the critical electric equipment load;
c) a first asynchronous motor powered from said first variable speed drive for turning a fly-wheel attached thereto to ramp-up and maintain a level of expendable kinetic energy in said fly-wheel;
d) means for coupling said fly-wheel to a first synchronous alternating current generator for driving said generator in a no-load, standby condition;
e) a second asynchronous motor coupled to a second synchronous alternating current generator, in combination, and interposed said second variable speed drive and the critical electric equipment load;
f) computer processor control means interconnected said first and second variable speed drives, said synchronous alternating current generator, said second asynchronous motor/second synchronous alternating current generator combination, and an emergency contactor for maintaining the frequency of alternating current output from said synchronous alternating current generator slightly above the frequency of the commercial power on the grid and in a ready condition for input to said second variable speed drive;
g) said emergency contactor, interposed the output of said first synchronous alternating current generator and said second variable speed drive, and arranged for closing upon the sagging or outage of incoming grid power to the critical electric equipment load, allows the kinetic energy in said rotating fly-wheel to drive said first synchronous alternating current generator and produces a separate decaying alternating current frequency from said first synchronous alternating current generator to said second variable speed drive and through said second asynchronous motor/synchronous generator combination for supplementing the sag or outage of power from the commercial power grid to the load. - View Dependent Claims (12, 13, 14)
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15. An emergency supplemental power supply for outage protection of critical electric equipment load powered from a commercial power grid, comprising:
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a) a first variable speed drive in parallel with the critical electric equipment load;
b) a second variable speed drive interposed in series with the commercial power grid and the critical electrical equipment load and separately from said first synchronous alternating current generator;
c) a first asynchronous motor powered from said first variable speed drive for turning a fly-wheel attached thereto to ramp-up and maintain a level of expendable kinetic energy in said fly-wheel;
d) means for coupling said fly-wheel to a first synchronous alternating current generator for driving said first generator in a no-load, standby condition;
e) a second asynchronous motor coupled to a second synchronous alternating current generator, in combination, and interposed said second variable speed drive and the critical electric equipment load; and
,f) computer processor control means interconnected said first and second variable speed drives, said first synchronous alternating current generator, said second motor/generator combination and an emergency contactor for maintaining the frequency of alternating current output from said first synchronous alternating current generator slightly above the frequency of the commercial power on the grid and in a ready condition for input to said second variable speed drive and to the critical equipment load; and
,g) the input line of said emergency contactor, interposed the output of said first synchronous alternating current generator and said second variable speed drive, is separate from the input line of said power grid so that, power from said rotating fly-wheel drives said first synchronous alternating current generator and produces a separate decaying alternating current frequency from said first synchronous alternating current generator to said second variable speed drive and through said second asynchronous motor—
synchronous generator combination for providing clean conditioned power with total isolation from the commercial power grid supplementing the sag or outage of power from the commercial power grid to the load.- View Dependent Claims (16, 17)
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18. An emergency supplemental power supply for outage protection of critical electric equipment load powered from a commercial power grid, of comprising:
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a) a first variable speed drive in parallel with the critical electric equipment load, b) a second variable speed drive interposed in series with the commercial power grid and the critical electric equipment load;
c) a first asynchronous motor powered from said first variable speed drive for turning a fly-wheel attached thereto to ramp-up and maintain a level of expendable kinetic energy in said fly-wheel;
d) means for coupling said fly-wheel to a first synchronous alternating current generator for driving said generator in a no-load, standby condition;
e) a second asynchronous motor coupled to a second synchronous alternating current generator, in combination, and interposed said second variable speed drive and the critical electric equipment load;
f) a prime mover including means for coupling said prime mover to said second asynchronous motor/second synchronous alternating current generator combination; and
,g) a computer processor interconnected said first and second variable speed drives, said first synchronous alternating current generator, said second asynchronous motor/second synchronous alternating current generator combination, said prime mover, and an emergency contactor for maintaining the frequency of alternating current output from said first synchronous alternating current generator slightly above the frequency of the commercial power on the grid and in a ready condition for input to said second variable speed drive;
h) wherein, said emergency contactor, interposed the output of said first synchronous alternating current generator and said second variable speed drive, is arranged to close upon the sagging or outage of incoming grid power to the critical load and allow the kinetic energy in said rotating fly-wheel to drive said first synchronous alternating current generator and produce a decaying alternating current frequency from said synchronous alternating current generator to said second variable speed drive for supplementing the sag or outage in the commercial power grid to the load for a period sufficient to allow said prime mover to start and come up to a speed necessary to couple with said second asynchronous motor and provide lasting supplemental power to the load. - View Dependent Claims (19, 20, 21, 22, 24)
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23. An emergency supplemental power supply for outage protection of critical electric equipment load powered from a commercial power grid, comprising:
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a) a variable speed drive in parallel with the critical electric equipment load;
b) an asynchronous motor powered from said variable speed drive for turning a fly-wheel attached thereto to build and maintain a level of expendable kinetic energy in said fly-wheel;
c) means for coupling said fly-wheel to a synchronous alternating current generator for driving said generator in a no-load, standby condition;
d) a prime mover including means for coupling said prime mover to said synchronous alternating current generator;
e) computer processor control means interconnected said variable speed drive, said synchronous alternating current generator, and an emergency contactor for maintaining the frequency of alternating current output from said synchronous alternating current generator slightly above the frequency of the commercial power on the grid and in a ready condition for use with the critical equipment load; and
,f) an emergency generator contactor interposed the output of said synchronous alternating current generator and the critical equipment load, to allow the kinetic energy in said rotating fly-wheel to drive said synchronous alternating current generator, without further input power from said variable speed drive, and produce a decaying alternating current voltage and frequency from said synchronous alternating current generator to the load for a period sufficient to allow said prime mover to start and to come up to a speed necessary to couple with said synchronous generator and provide lasting supplemental power to the load. - View Dependent Claims (25, 26)
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Specification