Uninterruptible power generation system
First Claim
1. An uninterruptible power delivery system for supplying a power load of a facility within a high quality power range, the uninterruptible power delivery system comprising:
- a primary power supply from at least one generator located on-site to the facility; and
a secondary power supply from a utility;
wherein the at least one generator and the utility cooperate to provide to the facility a power load in a high quality power range;
said high quality power range being power within a predetermined voltage range, a predetermined frequency range and not being interrupted for more than a cycle.
8 Assignments
0 Petitions
Accused Products
Abstract
A power delivery system including a primary power bus for transferring power to the facility from on-site generators, and a secondary power bus for transferring power to the facility from a utility. The system further includes a static disconnect switch capable of quickly isolating the facility from the utility power grid, and a controller for controlling the overall operation of the power delivery system. In a normal mode of operation, the utility supplies power approximately in the amount of the single largest load in the facility, with the remaining power being supplied by the on-site generators. If one or more of the generators go off-line, the power supply from the utility may be increased. Similarly, if the quality of the power supplied by the utility drops below a predetermined level, the static disconnect switch quickly opens and islands the facility, whereupon 100% of the power is supplied by the generators.
49 Citations
38 Claims
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1. An uninterruptible power delivery system for supplying a power load of a facility within a high quality power range, the uninterruptible power delivery system comprising:
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a primary power supply from at least one generator located on-site to the facility; and
a secondary power supply from a utility;
wherein the at least one generator and the utility cooperate to provide to the facility a power load in a high quality power range;
said high quality power range being power within a predetermined voltage range, a predetermined frequency range and not being interrupted for more than a cycle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An uninterruptible power delivery system for supplying a power load of a facility within a high quality range, the uninterruptible power delivery system comprising:
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a primary power supply from at least one generator located on-site to the facility;
a secondary power supply from a utility; and
a static disconnect switch for isolating the facility from the power supply from said utility in less than a cycle in the event power to the facility from the utility is outside of a high quality range of power wherein said high quality range is power within a predetermined voltage range, a predetermined frequency range and not being interrupted for more than a predetermined length of time. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. An uninterruptible power supply system for supplying an alternating current power load to a facility, the system comprising:
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at least one generator located on-site to the facility, the at least one generator providing a primary power supply to the facility;
a utility power supply which may provide a secondary power supply to the facility; and
a switch interposed between the utility power supply and the facility, the switch being capable of opening within one cycle of the alternating current to electrically isolate the facility from the utility power supply;
wherein under normal operating conditions the at least one generator supplies the primary power load to the facility and the utility power supply may supply a secondary power load to the facility to supplement the primary power load from the at least one generator and when the secondary power load from the utility power supply falls outside a high quality power range of at least one of a predetermined range of voltage and of a predetermined range of frequency, for more than a predetermined length of time, the switch opens within one cycle to electrically isolate the facility from the utility power supply. - View Dependent Claims (28, 29, 30)
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31. An uninterruptible power supply system for supplying an alternating current power load to a facility, the system comprising:
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at least one generator located on-site to the facility, the at least one generator providing a primary power load to the facility; and
a utility power supply which may provide a secondary power load to the facility to supplement the primary power load;
wherein the at least one generator cooperates with the utility power supply to provide a power load to the facility which is of a high quality of power in at least one of a predetermined range of voltage and of a predetermined range of frequency, and not being interrupted for more than a predetermined period of time, without requiring a tertiary stored energy supply to provide a substantial portion of the power load to the facility. - View Dependent Claims (32)
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33. A method of providing uninterruptible power to a facility, the method comprising:
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connecting at least one generator to a facility to provide a primary power load to the facility;
connecting a utility power supply to the facility to provide a secondary primary load to the facility;
monitoring the quality of the power load provided by the utility power supply to the facility; and
electrically isolating the facility from the utility power supply whenever the quality of the power load falls outside a high quality power range, said high quality power range being power within in a predetermined voltage range, a predetermined frequency range and not being interrupted for more than a predetermined length of time. - View Dependent Claims (34, 35, 36, 37, 38)
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Specification