US20120085109A1 - Contained UPS System with Temperature Control - Google Patents
Contained UPS System with Temperature Control Download PDFInfo
- Publication number
- US20120085109A1 US20120085109A1 US13/016,487 US201113016487A US2012085109A1 US 20120085109 A1 US20120085109 A1 US 20120085109A1 US 201113016487 A US201113016487 A US 201113016487A US 2012085109 A1 US2012085109 A1 US 2012085109A1
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- United States
- Prior art keywords
- plenum
- floor
- air flow
- main compartment
- ups
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20536—Modifications to facilitate cooling, ventilating, or heating for racks or cabinets of standardised dimensions, e.g. electronic racks for aircraft or telecommunication equipment
- H05K7/20554—Forced ventilation of a gaseous coolant
- H05K7/2059—Forced ventilation of a gaseous coolant within rooms for removing heat from cabinets, e.g. by air conditioning device
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/615—Heating or keeping warm
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/627—Stationary installations, e.g. power plant buffering or backup power supplies
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6561—Gases
- H01M10/6563—Gases with forced flow, e.g. by blowers
- H01M10/6565—Gases with forced flow, e.g. by blowers with recirculation or U-turn in the flow path, i.e. back and forth
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/66—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells
- H01M10/663—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells the system being an air-conditioner or an engine
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the present invention relates to uninterruptible power supply (UPS) systems and, more particularly, to contained UPS systems.
- UPS uninterruptible power supply
- UPS Uninterruptible power supply
- a UPS system may include various equipment such as one or more UPS modules, protective switchboards and the like (hereinafter, “UPS equipment”) as well as one or more energy storage batteries, housed together in a chamber of a room or container. It is desirable to maintain the batteries at a fixed temperature of 77° F. Therefore, even though the UPS equipment can tolerate higher temperatures, it is necessary to cool the chamber to a temperature in the range suitable for the batteries.
- FIG. 1 is a front perspective view of a self-contained UPS system according to embodiments of the present invention.
- FIG. 2 is a top plan view of the UPS system of FIG. 1 with a roof panel thereof removed.
- FIG. 3 is a top plan view of the UPS system of FIG. 1 with a floor and overlying components removed to reveal the contents below the floor.
- FIG. 4 is a schematic cross-sectioned view of the UPS system of FIG. 1 taken along the line 4 - 4 of FIG. 2 .
- FIG. 5 is a schematic electrical diagram representing the UPS system of FIG. 1 .
- FIGS. 6A-6D are views of an A/C protective switchboard forming a part of the UPS system of FIG. 1 .
- FIGS. 7A-7D are views of a DC protective switchboard forming a part of the UPS system of FIG. 1 .
- FIG. 8 is a top perspective view of an exemplary battery forming a part of the UPS system of FIG. 1 .
- FIG. 9 is a schematic, cross-sectional view of a UPS system according to further embodiments of the present invention.
- an uninterruptible power supply (UPS) system includes an enclosure, a floor system, a UPS, and at least one air conditioning unit.
- the enclosure defines an interior chamber.
- the floor system is disposed in the interior chamber.
- the floor system includes a floor that defines within the interior chamber a main compartment above the floor and a plenum below the floor.
- the at least one battery is disposed in the plenum.
- the UPS is disposed in the main compartment and is electrically connected to the at least one battery.
- the at least one air conditioning unit is operable to generate a first conditioned air flow through the main compartment and a second conditioned air flow through the plenum such that the main compartment is maintained at a first temperature and the plenum is maintained at a second temperature different from the first.
- the at least one air conditioning unit generates and forces a first supply air flow into the main compartment and generates and forces a second supply air flow into the plenum, and the second supply air flow is cooler than the first supply air flow.
- the second temperature is at least 8° C. less than the first temperature.
- the first temperature is in the range of from about 30° C. to 35° C.
- the second temperature is in the range of from about 22° C. to 27° C.
- the second conditioned air flow is a circulating air flow that originates at the at least one air conditioning unit and returns to the at least one air conditioning unit.
- At least a portion of the second conditioning air flow is directed from the plenum into the main compartment.
- the redirected portion of the second conditioning air flow is directed to an intake port of a integrated cooling system forming a part of the UPS.
- the volume of the plenum is less than the volume of the main compartment.
- the plenum is separated from the main compartment by a floor, the floor includes at least one floor panel, and the at least one floor panel is removable to permit access to the at least one battery from the main compartment.
- the at least one battery may include a plurality of batteries electrically connected to form a battery string in the plenum.
- the enclosure includes a mobile container.
- a method for providing an uninterruptible power supply includes providing an uninterruptible power supply (UPS) system including: an enclosure defining an interior chamber; a floor system in the interior chamber, the floor system including a floor that defines within the interior chamber a main compartment above the floor and a plenum below the floor; at least one battery disposed in the plenum; a UPS disposed in the main compartment and electrically connected to the at least one battery; and at least one air conditioning unit.
- the method further includes operating the at least one air conditioning unit to generate a first conditioned air flow through the main compartment and a second conditioned air flow through the plenum such that the main compartment is maintained at a first temperature and the plenum is maintained at a second temperature different from the first.
- UPS uninterruptible power supply
- the method includes generating and forcing a first supply air flow into the main compartment and generating and forcing a second supply air flow into the plenum using the at least one air conditioning unit, wherein the second supply air flow is cooler than the first supply air flow.
- the second temperature is at least 8° C. less than the first temperature.
- the first temperature is in the range of from about 30° C. to 35° C.
- the second temperature is in the range of from about 22° C. to 27° C.
- the second conditioned air flow is a circulating air flow that originates at the at least one air conditioning unit and returns to the at least one air conditioning unit.
- the method includes directing at least a portion of the second conditioning air flow from the plenum into the main compartment.
- the method may further include directing the redirected portion of the second conditioning air flow to an intake port of a integrated cooling system forming a part of the UPS.
- the volume of the plenum is less than the volume of the main compartment.
- the plenum is separated from the main compartment by a floor
- the floor includes at least one floor panel
- the method includes removing the at least one floor panel to access the at least one battery from the main compartment.
- spatially relative terms such as “under”, “below”, “lower”, “over”, “upper” and the like, may be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as “under” or “beneath” other elements or features would then be oriented “over” the other elements or features. Thus, the exemplary term “under” can encompass both an orientation of over and under. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
- the UPS system 100 includes an enclosure or container 110 ( FIG. 1 ), a floor system 120 ( FIGS. 2-4 ), an uninterruptible power supply (UPS) 150 ( FIGS. 2 , 4 and 5 ), an A/C protection switchboard 152 (FIGS. 2 and 6 A- 6 D), a DC protection switchboard 154 (FIGS. 2 and 7 A- 7 D), a fire suppression system 156 ( FIG. 2 ), a battery subsystem 160 ( FIGS. 2-5 ), a first air conditioning (HVAC) unit 180 , and a second HVAC unit 182 .
- UPS uninterruptible power supply
- A/C protection switchboard 152 FIGGS. 2 and 6 A- 6 D
- DC protection switchboard 154 FIGGS. 2 and 7 A- 7 D
- a fire suppression system 156 FIG. 2
- battery subsystem 160 FIGS. 2-5
- HVAC first air conditioning
- the container includes a shell 112 that may be formed of substantially rigid panels.
- the shell 112 is formed of metal (e.g., steel) panels.
- the shell 112 includes a roof panel 112 A, opposed side panels 112 B, a bottom panel 112 C, a front panel 112 D, a rear end panel 112 E, and an access door 114 .
- Other container configurations may be employed.
- the shell 112 defines an interior chamber 111 .
- the floor system 120 includes a support subframe 122 ( FIG. 2 ) supporting a plurality of individual removable floor panels 124 .
- the floor subframe 122 includes a network or grid of horizontally extending floor joists 122 A and a plurality of legs, pedestals or stanchions 122 B mounted on the bottom panel 112 C and supporting the joists 122 A.
- the floor panels 124 rest on the joists 122 A and define a platform or floor 125 ( FIG. 4 ) that is raised above the bottom panel 112 C.
- the floor 125 also includes a perforated or louvered panel 126 ( FIG. 2 ) mounted on the subframe 122 .
- the subframe 122 and the floor panels 124 , 126 may be formed of any suitable material. According to some embodiments, the subframe 122 and the floor panels 124 , 126 are formed of metal (e.g., steel). The floor panels 124 may be provided with handholds, handles or other suitable features 124 A to assist in removing the floor panels 124 from the subframe 122 .
- the floor system 120 defines or divides the chamber 111 into a main compartment 130 above the floor 125 and a battery compartment or plenum 132 ( FIG. 4 ) below the floor 125 .
- the plenum 132 includes a first battery storage zone 134 A, a second battery storage zone 134 B, a third battery storage zone 134 C, and a pair of opposed equipment zones 136 A, 136 B ( FIG. 3 )
- the battery subsystem 160 includes a plurality of batteries or jars 162 (as shown, 120 batteries; FIG. 8 ). Each battery 162 may have a positive terminal 162 A and a negative terminal 162 B and a battery cell contained in a housing 162 C.
- the batteries 162 are grouped in groups of forty as a first battery string 168 ( FIG. 3 ). In each battery string, the batteries 162 thereof may be electrically connected to one another in series by cabling 170 .
- Each battery string 164 , 166 , 168 is also electrically connected to the UPS 150 by cabling.
- the batteries 162 may be of any suitable type and construction. According to some embodiments, the batteries 162 are sealed recombinant technology batteries. Suitable batteries for the batteries 162 may include the Eaton 12V 500 W (PWHR12500SUFR) battery available from Eaton Corporation.
- Each of the battery strings 164 , 166 and 168 is disposed in a respective one of the battery storage zones 134 A, 134 B, and 134 C and interposed between the floor 125 and the bottom panel 112 C.
- the equipment zones 136 A, 136 B are free of batteries, but may be used to store other equipment or supplies.
- the UPS 150 , the switchboards 152 , 154 and the other associated equipment may be disposed in the main compartment 130 and supported by the floor 125 and/or a panel 112 A, 112 B, 112 D, 112 E of the shell 112 .
- none of the floor panels 124 overlying a battery string 162 , 164 , 166 support equipment in the main compartment 130 . This may ensure that the batteries 162 can all be accessed directly by removing the overlying floor panel 124 without having to move the equipment.
- the HVAC units 180 , 182 are mounted on the front end panel 112 D and each fluidly communicate with the interior chamber 111 . More particularly, each of the HVAC units 180 , 182 has or is fluidly connected to a main supply port 180 A, a main return port 180 B, a plenum supply port 180 C, and a plenum return port 180 D ( FIG. 4 ). With reference to FIG.
- each of the HVAC units 180 , 182 is operative to generate and force a supply flow F 2 of conditioned air into the main compartment 130 through the port 180 A, to draw in a return flow F 6 of air from the main compartment 130 through the port 180 B, to generate and force a supply flow F 8 of conditioned air into the plenum 132 through the port 180 C, and to draw in a return flow F 6 of air from the plenum 132 through the port 180 C.
- the UPS system 100 may be configured such that the main supply flow F 2 becomes a circulating flow F 4 that thereafter becomes the main return flow F 6 .
- the UPS system 100 may be configured such that the plenum supply flow F 8 becomes a circulating flow F 10 that thereafter becomes the plenum return flow F 11 .
- a portion F 12 of the plenum supply flow F 8 may exit the plenum 132 through the floor panel 126 into the main compartment 130 .
- the floor panel 126 is located adjacent an intake 150 A of the UPS 150 so that the diverted flow F 12 is drawn in by an on-board cooling system 150 B of the UPS 150 .
- Suitable HVAC units for the HVAC units 180 , 182 may include the wall mount six ton air conditioner available from Bard.
- the electrical circuit of the UPS system 100 can be configured in any suitable manner and an exemplary UPS circuit 190 is illustrated in FIG. 5 .
- Suitable UPSs for the UPS 150 include the Eaton 9395 UPS available from Eaton Corporation.
- the battery subsystem 160 and desired load equipment 192 are each electrically connected to the UPS circuit 190 .
- the load equipment 192 may be, under normal operation, supplied by a line power supply 194 .
- the line power can be routed to the load equipment 192 under the control of and/or via a power supply management controller of the UPS 150 .
- the power supply management controller can direct power from the battery subsystem 160 (and, more particularly, the batteries 162 ) to the load equipment 192 to provide a backup or emergency power supply that enables continued operation of the load equipment 192 .
- the battery subsystem 160 and the UPS 150 may function in the same manner as known UPSs, for example, and it will be appreciated that other circuit designs may be employed.
- the A/C protection switchboard 152 may be of any suitable construction.
- FIGS. 6A-6D show a front view ( FIG. 6A ), top view ( FIG. 6B ), side view ( FIG. 6C ), and schematic electrical diagram ( FIG. 6D ) representing an exemplary A/C protection switchboard 152 .
- the DC protection switchboard 152 may be of any suitable construction.
- FIGS. 7A-7D show a front view ( FIG. 7A ), top view ( FIG. 7B ), side view ( FIG. 7C ), and schematic electrical diagram ( FIG. 7D ) representing an exemplary DC protection switchboard 154 .
- each HVAC unit 180 , 182 are each operated to generate dual zone cooling.
- each HVAC unit 180 , 182 generates upper or main zone cooling (i.e., flows F 2 , F 4 and F 6 ) and lower or plenum zone cooling (i.e., flows F 8 , F 10 , F 12 and F 14 ).
- the main zone i.e., main compartment 130
- T n main temperature
- the plenum zone (i.e., the plenum 132 ) is cooled and maintained at a plenum temperature T p in a second temperature range that is desired for the batteries 162 and that is different from the main temperature T m .
- the plenum temperature T p is less than the main temperature T m .
- the plenum temperature T p is in the range of from about 22 to 27° C.
- the main temperature T m is in the range of from about 30 to 35° C.
- the plenum temperature T p is at least 8° C. less than the main temperature T m .
- the HVAC units 180 , 182 can automatically adjust the temperature of the conditioned air flows F 2 and F 8 supplied to the chambers 130 and 132 as needed to properly maintain the desired temperatures.
- Temperature sensors 184 A and 184 B may be provided to separately detect the ambient temperatures of the main compartment 130 and the plenum 132 , respectively, to provide feedback for control of the HVAC units 180 , 182 .
- the UPS system 100 can maintain the batteries 162 in a preferred range for the batteries 162 without having to maintain all of the UPS equipment at such a reduced temperature.
- adequate cooling can be provided for both the batteries 162 and the UPS equipment 150 , 152 , 154 with improved efficiency in energy consumption for air conditioning. Maintaining the batteries in the preferred temperature range can significantly extend the battery life.
- efficient use is made of the space available in the interior chamber 111 .
- the spacings between the joists 122 A are selected to maximize or optimize the permitted packing density of the batteries 162 .
- an air return port can be provided remotely from the HVAC unit (e.g., at the end of the plenum 132 opposite the HVAC unit 180 ) and directed back to the return port 180 D (e.g., via a connecting duct).
- Apparatus may be provided for selectively distributing the supplied air flows, such as a manifold or ducts with supply ports distributed along the length and/or width of the plenum 132 .
- Air flow through the plenum 132 may be augmented by one or more powered fans.
- the height H 1 ( FIG. 4 ) of the plenum 132 is between about 20 inches and 35 inches. According to some embodiments, the height H 1 is between about 8 inches and 24 inches greater than the corresponding height of the batteries 162 . According to some embodiments, the height H 2 ( FIG. 4 ) of the main compartment 130 is between about 10.5 feet and 13 feet. According to some embodiments, the compartments 130 and 132 each have a length L ( FIG. 3 ) in the range from about 19 feet to 24 feet and a width ( FIG. 3 ) in the range of from about 11 feet to 13 feet.
- the volume of the plenum 132 is less than the volume of the main compartment 130 .
- the floor 125 is metal and is grounded through the shell 112 to serve as a ground plane.
- the H 2 detection system 158 includes an H 2 sensor 158 A ( FIG. 4 ), which may be located in the plenum 132 .
- the H 2 sensor 158 A detects gas and, in the event a potentially dangerous concentration of H 2 gas is detected, the H 2 detection system 158 will automatically disconnect the batteries 162 and activate a fan to purge the plenum 132 .
- the UPS system 100 is configured such that upon failure of one of the HVAC units 180 , 182 , the UPS 150 will enter a high efficiency-mode.
- the HVAC units 180 , 182 or other air conditioning units may be used to heat the compartments 130 , 132 as needed to maintain the temperatures T m , T p in the target ranges.
- HVAC units 180 , 182 have been described herein as dual zone units, alternative units or configurations may be employed.
- separate, dedicated HVAC units may be provided for each of the main compartment 130 and the plenum 132 .
- the compartments 130 and 132 may be supplied with conditioned air from a common source but with an intervening air handler or damper that selectively controls the mass flow rates of the air flows supplied to the respective compartments 130 , 132 .
- the UPS system 100 is mobile or semi-mobile.
- the container 110 may be sized and configured to permit and enable highway transport on a truck.
- the weight of the UPS system 100 is less than 46,000 pounds.
- the UPS system 200 includes a building 210 or other permanent or semi-permanent structure defining an interior chamber 211 .
- a floor system 220 corresponding to the floor system 120 subdivides the interior chamber 211 into a main compartment 230 and an underlying plenum 232 .
- the floor system 220 may include a support subframe 222 (including joists 222 A and legs 222 B) corresponding to the support subframe 122 , and removable floor panels 224 corresponding to the floor panels 124 .
- a UPS 250 and other equipment may be housed in the main compartment 230 and supported by the floor 225 .
- One or more HVAC units provide differential cooling (or heating) flows F 20 and F 22 in the main compartment 230 and the plenum 232 , respectively.
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Abstract
An uninterruptible power supply (UPS) system includes an enclosure, a floor system, a UPS, and at least one air conditioning unit. The enclosure defines an interior chamber. The floor system is disposed in the interior chamber. The floor system includes a floor that defines within the interior chamber a main compartment above the floor and a plenum below the floor. The at least one battery is disposed in the plenum. The UPS is disposed in the main compartment and is electrically connected to the at least one battery. The at least one air conditioning unit is operable to generate a first conditioned air flow through the main compartment and a second conditioned air flow through the plenum such that the main compartment is maintained at a first temperature and the plenum is maintained at a second temperature different from the first.
Description
- This application claims the benefit of and priority from U.S. Provisional Patent Application No. 61/390,807, filed Oct. 7, 2010, the disclosure of which is incorporated herein by reference in its entirety.
- The present invention relates to uninterruptible power supply (UPS) systems and, more particularly, to contained UPS systems.
- Uninterruptible power supply (UPS) systems are commonly used to provide emergency backup or auxiliary power to electronic equipment that may enable critical functions (e.g., computer systems, telecommunications systems and medical equipment). A UPS system may include various equipment such as one or more UPS modules, protective switchboards and the like (hereinafter, “UPS equipment”) as well as one or more energy storage batteries, housed together in a chamber of a room or container. It is desirable to maintain the batteries at a fixed temperature of 77° F. Therefore, even though the UPS equipment can tolerate higher temperatures, it is necessary to cool the chamber to a temperature in the range suitable for the batteries.
-
FIG. 1 is a front perspective view of a self-contained UPS system according to embodiments of the present invention. -
FIG. 2 is a top plan view of the UPS system ofFIG. 1 with a roof panel thereof removed. -
FIG. 3 is a top plan view of the UPS system ofFIG. 1 with a floor and overlying components removed to reveal the contents below the floor. -
FIG. 4 is a schematic cross-sectioned view of the UPS system ofFIG. 1 taken along the line 4-4 ofFIG. 2 . -
FIG. 5 is a schematic electrical diagram representing the UPS system ofFIG. 1 . -
FIGS. 6A-6D are views of an A/C protective switchboard forming a part of the UPS system ofFIG. 1 . -
FIGS. 7A-7D are views of a DC protective switchboard forming a part of the UPS system ofFIG. 1 . -
FIG. 8 is a top perspective view of an exemplary battery forming a part of the UPS system ofFIG. 1 . -
FIG. 9 is a schematic, cross-sectional view of a UPS system according to further embodiments of the present invention. - According to embodiments of the present invention, an uninterruptible power supply (UPS) system includes an enclosure, a floor system, a UPS, and at least one air conditioning unit. The enclosure defines an interior chamber. The floor system is disposed in the interior chamber. The floor system includes a floor that defines within the interior chamber a main compartment above the floor and a plenum below the floor. The at least one battery is disposed in the plenum. The UPS is disposed in the main compartment and is electrically connected to the at least one battery. The at least one air conditioning unit is operable to generate a first conditioned air flow through the main compartment and a second conditioned air flow through the plenum such that the main compartment is maintained at a first temperature and the plenum is maintained at a second temperature different from the first.
- In some embodiments, the at least one air conditioning unit generates and forces a first supply air flow into the main compartment and generates and forces a second supply air flow into the plenum, and the second supply air flow is cooler than the first supply air flow.
- According to some embodiments, the second temperature is at least 8° C. less than the first temperature.
- In some embodiments, the first temperature is in the range of from about 30° C. to 35° C., and the second temperature is in the range of from about 22° C. to 27° C.
- In some embodiments, the second conditioned air flow is a circulating air flow that originates at the at least one air conditioning unit and returns to the at least one air conditioning unit.
- According to some embodiments, at least a portion of the second conditioning air flow is directed from the plenum into the main compartment. In some embodiments, the redirected portion of the second conditioning air flow is directed to an intake port of a integrated cooling system forming a part of the UPS.
- According to some embodiments, the volume of the plenum is less than the volume of the main compartment.
- In some embodiments, the plenum is separated from the main compartment by a floor, the floor includes at least one floor panel, and the at least one floor panel is removable to permit access to the at least one battery from the main compartment.
- The at least one battery may include a plurality of batteries electrically connected to form a battery string in the plenum.
- In some embodiments, the enclosure includes a mobile container.
- According to method embodiments of the present invention, a method for providing an uninterruptible power supply includes providing an uninterruptible power supply (UPS) system including: an enclosure defining an interior chamber; a floor system in the interior chamber, the floor system including a floor that defines within the interior chamber a main compartment above the floor and a plenum below the floor; at least one battery disposed in the plenum; a UPS disposed in the main compartment and electrically connected to the at least one battery; and at least one air conditioning unit. The method further includes operating the at least one air conditioning unit to generate a first conditioned air flow through the main compartment and a second conditioned air flow through the plenum such that the main compartment is maintained at a first temperature and the plenum is maintained at a second temperature different from the first.
- In some embodiments, the method includes generating and forcing a first supply air flow into the main compartment and generating and forcing a second supply air flow into the plenum using the at least one air conditioning unit, wherein the second supply air flow is cooler than the first supply air flow.
- According to some embodiments, the second temperature is at least 8° C. less than the first temperature.
- According to some embodiments, the first temperature is in the range of from about 30° C. to 35° C., and the second temperature is in the range of from about 22° C. to 27° C.
- In some embodiments, the second conditioned air flow is a circulating air flow that originates at the at least one air conditioning unit and returns to the at least one air conditioning unit.
- According to some embodiments, the method includes directing at least a portion of the second conditioning air flow from the plenum into the main compartment. The method may further include directing the redirected portion of the second conditioning air flow to an intake port of a integrated cooling system forming a part of the UPS.
- In some embodiments, the volume of the plenum is less than the volume of the main compartment.
- According to some embodiments, the plenum is separated from the main compartment by a floor, the floor includes at least one floor panel, and the method includes removing the at least one floor panel to access the at least one battery from the main compartment.
- Further features, advantages and details of the present invention will be appreciated by those of ordinary skill in the art from a reading of the figures and the detailed description of the embodiments that follow, such description being merely illustrative of the present invention.
- The present invention now will be described more fully hereinafter with reference to the accompanying drawings, in which illustrative embodiments of the invention are shown. In the drawings, the relative sizes of regions or features may be exaggerated for clarity. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
- It will be understood that when an element is referred to as being “coupled” or “connected” to another element, it can be directly coupled or connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being “directly coupled” or “directly connected” to another element, there are no intervening elements present. Like numbers refer to like elements throughout. As used herein the term “and/or” includes any and all combinations of one or more of the associated listed items.
- In addition, spatially relative terms, such as “under”, “below”, “lower”, “over”, “upper” and the like, may be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as “under” or “beneath” other elements or features would then be oriented “over” the other elements or features. Thus, the exemplary term “under” can encompass both an orientation of over and under. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
- The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms “a”, “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “comprises” and/or “comprising,” when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. As used herein the expression “and/or” includes any and all combinations of one or more of the associated listed items.
- Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
- With reference to
FIGS. 1-8 , a self-containedUPS system 100 according to embodiments of the present invention is shown therein. TheUPS system 100 includes an enclosure or container 110 (FIG. 1 ), a floor system 120 (FIGS. 2-4 ), an uninterruptible power supply (UPS) 150 (FIGS. 2 , 4 and 5), an A/C protection switchboard 152 (FIGS. 2 and 6A-6D), a DC protection switchboard 154 (FIGS. 2 and 7A-7D), a fire suppression system 156 (FIG. 2 ), a battery subsystem 160 (FIGS. 2-5 ), a first air conditioning (HVAC)unit 180, and asecond HVAC unit 182. - Turning to the
container 110 in more detail, the container includes ashell 112 that may be formed of substantially rigid panels. According to some embodiments, theshell 112 is formed of metal (e.g., steel) panels. Theshell 112 includes aroof panel 112A, opposedside panels 112B, abottom panel 112C, afront panel 112D, arear end panel 112E, and anaccess door 114. Other container configurations may be employed. Theshell 112 defines aninterior chamber 111. - With reference to
FIGS. 2-4 , thefloor system 120 includes a support subframe 122 (FIG. 2 ) supporting a plurality of individualremovable floor panels 124. Thefloor subframe 122 includes a network or grid of horizontally extendingfloor joists 122A and a plurality of legs, pedestals orstanchions 122B mounted on thebottom panel 112C and supporting thejoists 122A. Thefloor panels 124 rest on thejoists 122A and define a platform or floor 125 (FIG. 4 ) that is raised above thebottom panel 112C. Thefloor 125 also includes a perforated or louvered panel 126 (FIG. 2 ) mounted on thesubframe 122. - The
subframe 122 and thefloor panels subframe 122 and thefloor panels floor panels 124 may be provided with handholds, handles or othersuitable features 124A to assist in removing thefloor panels 124 from thesubframe 122. - The
floor system 120 defines or divides thechamber 111 into amain compartment 130 above thefloor 125 and a battery compartment or plenum 132 (FIG. 4 ) below thefloor 125. Theplenum 132 includes a firstbattery storage zone 134A, a secondbattery storage zone 134B, a thirdbattery storage zone 134C, and a pair ofopposed equipment zones FIG. 3 ) - The
battery subsystem 160 includes a plurality of batteries or jars 162 (as shown, 120 batteries;FIG. 8 ). Eachbattery 162 may have apositive terminal 162A and anegative terminal 162B and a battery cell contained in ahousing 162C. Thebatteries 162 are grouped in groups of forty as a first battery string 168 (FIG. 3 ). In each battery string, thebatteries 162 thereof may be electrically connected to one another in series by cabling 170. Eachbattery string UPS 150 by cabling. - The
batteries 162 may be of any suitable type and construction. According to some embodiments, thebatteries 162 are sealed recombinant technology batteries. Suitable batteries for thebatteries 162 may include the Eaton 12V 500 W (PWHR12500SUFR) battery available from Eaton Corporation. - Each of the battery strings 164, 166 and 168 is disposed in a respective one of the
battery storage zones floor 125 and thebottom panel 112C. Theequipment zones - The
UPS 150, theswitchboards main compartment 130 and supported by thefloor 125 and/or apanel shell 112. According to some embodiments, none of thefloor panels 124 overlying abattery string main compartment 130. This may ensure that thebatteries 162 can all be accessed directly by removing theoverlying floor panel 124 without having to move the equipment. - The
HVAC units front end panel 112D and each fluidly communicate with theinterior chamber 111. More particularly, each of theHVAC units main supply port 180A, amain return port 180B, aplenum supply port 180C, and aplenum return port 180D (FIG. 4 ). With reference toFIG. 4 , each of theHVAC units main compartment 130 through theport 180A, to draw in a return flow F6 of air from themain compartment 130 through theport 180B, to generate and force a supply flow F8 of conditioned air into theplenum 132 through theport 180C, and to draw in a return flow F6 of air from theplenum 132 through theport 180C. TheUPS system 100 may be configured such that the main supply flow F2 becomes a circulating flow F4 that thereafter becomes the main return flow F6. Likewise, theUPS system 100 may be configured such that the plenum supply flow F8 becomes a circulating flow F10 that thereafter becomes the plenum return flow F11. A portion F12 of the plenum supply flow F8 may exit theplenum 132 through thefloor panel 126 into themain compartment 130. According to some embodiments, thefloor panel 126 is located adjacent anintake 150A of theUPS 150 so that the diverted flow F12 is drawn in by an on-board cooling system 150B of theUPS 150. - Suitable HVAC units for the
HVAC units - The electrical circuit of the
UPS system 100 can be configured in any suitable manner and an exemplary UPS circuit 190 is illustrated inFIG. 5 . Suitable UPSs for theUPS 150 include the Eaton 9395 UPS available from Eaton Corporation. Thebattery subsystem 160 and desiredload equipment 192 are each electrically connected to the UPS circuit 190. Theload equipment 192 may be, under normal operation, supplied by aline power supply 194. The line power can be routed to theload equipment 192 under the control of and/or via a power supply management controller of theUPS 150. In the event of a loss of power from theline power supply 194, the power supply management controller can direct power from the battery subsystem 160 (and, more particularly, the batteries 162) to theload equipment 192 to provide a backup or emergency power supply that enables continued operation of theload equipment 192. Thebattery subsystem 160 and theUPS 150 may function in the same manner as known UPSs, for example, and it will be appreciated that other circuit designs may be employed. - The A/
C protection switchboard 152 may be of any suitable construction.FIGS. 6A-6D show a front view (FIG. 6A ), top view (FIG. 6B ), side view (FIG. 6C ), and schematic electrical diagram (FIG. 6D ) representing an exemplary A/C protection switchboard 152. - The
DC protection switchboard 152 may be of any suitable construction.FIGS. 7A-7D show a front view (FIG. 7A ), top view (FIG. 7B ), side view (FIG. 7C ), and schematic electrical diagram (FIG. 7D ) representing an exemplaryDC protection switchboard 154. - In use, the
HVAC units HVAC unit main compartment 130. The plenum zone (i.e., the plenum 132) is cooled and maintained at a plenum temperature Tp in a second temperature range that is desired for thebatteries 162 and that is different from the main temperature Tm. According to some embodiments, the plenum temperature Tp is less than the main temperature Tm. According to some embodiments, the plenum temperature Tp is in the range of from about 22 to 27° C. According to some embodiments, the main temperature Tm is in the range of from about 30 to 35° C. According to some embodiments, the plenum temperature Tp is at least 8° C. less than the main temperature Tm. - The
HVAC units chambers Temperature sensors FIG. 4 ) may be provided to separately detect the ambient temperatures of themain compartment 130 and theplenum 132, respectively, to provide feedback for control of theHVAC units - By separately controlling the temperatures of the
compartments UPS system 100 can maintain thebatteries 162 in a preferred range for thebatteries 162 without having to maintain all of the UPS equipment at such a reduced temperature. As a result, adequate cooling can be provided for both thebatteries 162 and theUPS equipment interior chamber 111. - According to some embodiments, the spacings between the
joists 122A are selected to maximize or optimize the permitted packing density of thebatteries 162. - While the flows of conditioned air through the
main compartment 130 and theplenum 132 have been described and illustrated as following generally circular or looped flow paths originating and terminating at theHVAC units plenum 132 opposite the HVAC unit 180) and directed back to thereturn port 180D (e.g., via a connecting duct). Apparatus may be provided for selectively distributing the supplied air flows, such as a manifold or ducts with supply ports distributed along the length and/or width of theplenum 132. Air flow through theplenum 132 may be augmented by one or more powered fans. - According to some embodiments, the height H1 (
FIG. 4 ) of theplenum 132 is between about 20 inches and 35 inches. According to some embodiments, the height H1 is between about 8 inches and 24 inches greater than the corresponding height of thebatteries 162. According to some embodiments, the height H2 (FIG. 4 ) of themain compartment 130 is between about 10.5 feet and 13 feet. According to some embodiments, thecompartments FIG. 3 ) in the range from about 19 feet to 24 feet and a width (FIG. 3 ) in the range of from about 11 feet to 13 feet. - According to some embodiments, the volume of the
plenum 132 is less than the volume of themain compartment 130. - According to some embodiments, the
floor 125 is metal and is grounded through theshell 112 to serve as a ground plane. - The H2 detection system 158 includes an H2 sensor 158A (
FIG. 4 ), which may be located in theplenum 132. The H2 sensor 158A detects gas and, in the event a potentially dangerous concentration of H2 gas is detected, the H2 detection system 158 will automatically disconnect thebatteries 162 and activate a fan to purge theplenum 132. - According to some embodiments, the
UPS system 100 is configured such that upon failure of one of theHVAC units UPS 150 will enter a high efficiency-mode. - While the temperature maintenance has been discussed hereinabove in terms of cooling, the
HVAC units compartments - While the
HVAC units main compartment 130 and theplenum 132. Thecompartments respective compartments - According to some embodiments, the
UPS system 100 is mobile or semi-mobile. Thecontainer 110 may be sized and configured to permit and enable highway transport on a truck. According to some embodiments, the weight of theUPS system 100 is less than 46,000 pounds. - With reference to
FIG. 9 , aUPS system 200 according to further embodiments is shown therein. TheUPS system 200 includes abuilding 210 or other permanent or semi-permanent structure defining aninterior chamber 211. Afloor system 220 corresponding to thefloor system 120 subdivides theinterior chamber 211 into amain compartment 230 and anunderlying plenum 232. Thefloor system 220 may include a support subframe 222 (includingjoists 222A andlegs 222B) corresponding to thesupport subframe 122, andremovable floor panels 224 corresponding to thefloor panels 124. AUPS 250 and other equipment may be housed in themain compartment 230 and supported by thefloor 225. One or more HVAC units provide differential cooling (or heating) flows F20 and F22 in themain compartment 230 and theplenum 232, respectively. - The foregoing is illustrative of the present invention and is not to be construed as limiting thereof. Although a few exemplary embodiments of this invention has been described, those skilled in the art will readily appreciate that many modifications are possible in the exemplary embodiments without materially departing from the novel teachings and advantages of this invention. Accordingly, all such modifications are intended to be included within the scope of this invention. Therefore, it is to be understood that the foregoing is illustrative of the present invention and is not to be construed as limited to the specific embodiments disclosed, and that modifications to the disclosed embodiments, as well as other embodiments, are intended to be included within the scope of the invention.
Claims (20)
1. An uninterruptible power supply (UPS) system comprising:
an enclosure defining an interior chamber;
a floor system in the interior chamber, the floor system including a floor that defines within the interior chamber a main compartment above the floor and a plenum below the floor;
at least one battery disposed in the plenum;
a UPS disposed in the main compartment and electrically connected to the at least one battery; and
at least one air conditioning unit operable to generate a first conditioned air flow through the main compartment and a second conditioned air flow through the plenum such that the main compartment is maintained at a first temperature and the plenum is maintained at a second temperature different from the first.
2. The UPS system of claim 1 wherein:
the at least one air conditioning unit generates and forces a first supply air flow into the main compartment and generates and forces a second supply air flow into the plenum; and
the second supply air flow is cooler than the first supply air flow.
3. The UPS system of claim 1 wherein the second temperature is at least 8° C. less than the first temperature.
4. The UPS system of claim 1 wherein:
the first temperature is in the range of from about 30° C. to 35° C.; and
the second temperature is in the range of from about 22° C. to 27° C.
5. The UPS system of claim 1 wherein the second conditioned air flow is a circulating air flow that originates at the at least one air conditioning unit and returns to the at least one air conditioning unit.
6. The UPS system of claim 1 wherein at least a portion of the second conditioning air flow is directed from the plenum into the main compartment.
7. The UPS system of claim 6 wherein the redirected portion of the second conditioning air flow is directed to an intake port of an integrated cooling system forming a part of the UPS.
8. The UPS system of claim 1 wherein the volume of the plenum is less than the volume of the main compartment.
9. The UPS system of claim 1 wherein:
the plenum is separated from the main compartment by a floor;
the floor includes at least one floor panel; and
the at least one floor panel is removable to permit access to the at least one battery from the main compartment.
10. The UPS system of claim 1 wherein the at least one battery includes a plurality of batteries electrically connected to form a battery string in the plenum.
11. The UPS system of claim 1 wherein the enclosure includes a mobile container.
12. A method for providing an uninterruptible power supply, the method comprising:
providing an uninterruptible power supply (UPS) system including:
an enclosure defining an interior chamber;
a floor system in the interior chamber, the floor system including a floor that defines within the interior chamber a main compartment above the floor and a plenum below the floor;
at least one battery disposed in the plenum;
a UPS disposed in the main compartment and electrically connected to the at least one battery; and
at least one air conditioning unit; and
operating the at least one air conditioning unit to generate a first conditioned air flow through the main compartment and a second conditioned air flow through the plenum such that the main compartment is maintained at a first temperature and the plenum is maintained at a second temperature different from the first.
13. The method of claim 12 including:
generating and forcing a first supply air flow into the main compartment and generating and forcing a second supply air flow into the plenum using the at least one air conditioning unit;
wherein the second supply air flow is cooler than the first supply air flow.
14. The method of claim 12 wherein the second temperature is at least 8° C. less than the first temperature.
15. The method of claim 12 wherein:
the first temperature is in the range of from about 30° C. to 35° C.; and
the second temperature is in the range of from about 22° C. to 27° C.
16. The method of claim 12 wherein the second conditioned air flow is a circulating air flow that originates at the at least one air conditioning unit and returns to the at least one air conditioning unit.
17. The method of claim 12 including directing at least a portion of the second conditioning air flow from the plenum into the main compartment.
18. The method of claim 17 including directing the redirected portion of the second conditioning air flow to an intake port of an integrated cooling system forming a part of the UPS.
19. The method of claim 12 wherein the volume of the plenum is less than the volume of the main compartment.
20. The method of claim 12 wherein:
the plenum is separated from the main compartment by a floor;
the floor includes at least one floor panel; and
the method includes removing the at least one floor panel to access the at least one battery from the main compartment.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/016,487 US20120085109A1 (en) | 2010-10-07 | 2011-01-28 | Contained UPS System with Temperature Control |
PCT/US2011/055059 WO2012048085A1 (en) | 2010-10-07 | 2011-10-06 | Contained ups system with temperature control |
EP11779259.8A EP2625941A1 (en) | 2010-10-07 | 2011-10-06 | Contained ups system with temperature control |
CN201180048606.7A CN103238381B (en) | 2010-10-07 | 2011-10-06 | There is temperature controlled self-tolerant ups system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US39080710P | 2010-10-07 | 2010-10-07 | |
US13/016,487 US20120085109A1 (en) | 2010-10-07 | 2011-01-28 | Contained UPS System with Temperature Control |
Publications (1)
Publication Number | Publication Date |
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US20120085109A1 true US20120085109A1 (en) | 2012-04-12 |
Family
ID=45924043
Family Applications (1)
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US13/016,487 Abandoned US20120085109A1 (en) | 2010-10-07 | 2011-01-28 | Contained UPS System with Temperature Control |
Country Status (4)
Country | Link |
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US (1) | US20120085109A1 (en) |
EP (1) | EP2625941A1 (en) |
CN (1) | CN103238381B (en) |
WO (1) | WO2012048085A1 (en) |
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WO2014127870A1 (en) * | 2013-02-19 | 2014-08-28 | Eltek As | Power supply system module |
WO2016198300A1 (en) * | 2015-06-10 | 2016-12-15 | sonnen GmbH | Energy distribution system, energy distribution device and installation method |
JP2017076530A (en) * | 2015-10-15 | 2017-04-20 | 三菱電機株式会社 | Power supply system |
EP3579326A1 (en) * | 2018-06-06 | 2019-12-11 | Samsung SDI Co., Ltd. | Detecting abnormal battery system conditions |
EP3828953A1 (en) * | 2019-11-29 | 2021-06-02 | Samsung SDI Co., Ltd. | Forced convection for cooling and gas detection in a battery system |
US11569553B2 (en) * | 2018-06-06 | 2023-01-31 | Samsung Sdi Co., Ltd. | Battery system configured to detect abnormal battery system conditions and method of the same |
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Also Published As
Publication number | Publication date |
---|---|
CN103238381A (en) | 2013-08-07 |
EP2625941A1 (en) | 2013-08-14 |
WO2012048085A1 (en) | 2012-04-12 |
CN103238381B (en) | 2016-08-24 |
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Owner name: EATON CORPORATION, OHIO Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MANDARINO, ANGELO LOUIS;REEL/FRAME:025870/0092 Effective date: 20110128 |
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