WO2017074348A1 - Hybrid uninterruptible power source - Google Patents

Hybrid uninterruptible power source Download PDF

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Publication number
WO2017074348A1
WO2017074348A1 PCT/US2015/057798 US2015057798W WO2017074348A1 WO 2017074348 A1 WO2017074348 A1 WO 2017074348A1 US 2015057798 W US2015057798 W US 2015057798W WO 2017074348 A1 WO2017074348 A1 WO 2017074348A1
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WO
WIPO (PCT)
Prior art keywords
coupled
battery modules
ups
module
hybrid
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PCT/US2015/057798
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French (fr)
Inventor
Hai Ngoc Nguyen
James W. HOLLAS
Abhishek Banerjee
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Hewlett Packard Enterprise Development Lp
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Priority to PCT/US2015/057798 priority Critical patent/WO2017074348A1/en
Publication of WO2017074348A1 publication Critical patent/WO2017074348A1/en

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04Circuit 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
    • H02J9/06Circuit 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
    • H02J9/062Circuit 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 for AC powered loads
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26Power supply means, e.g. regulation thereof
    • G06F1/263Arrangements for using multiple switchable power supplies, e.g. battery and AC

Abstract

In one example, a system for a hybrid uninterruptible power source (UPS) includes a number of battery modules that each include a corresponding modular boost converter, wherein the number of battery modules and corresponding module boost converters are coupled in parallel.

Description

HYBRID UNINTERRUPTIBLE POWER SOURCE
Background
[0001] Computing systems can utilize a number of uninterruptible power sources (UPSs) to provide backup power to the computing system when a main power source is deactivated or malfunctions. In some examples, a UPS can be utilized to provide power for a period of time when the computing system transfers data from volatile to nonvolatile memory resources. That is, the UPS can provide substantially continuous power to a computing system to enable the computing system to backup stored data to nonvolatile memory resources when the main power source is deactivated.
Brief Description of the Drawings
[0002] Figure 1 illustrates a diagram of an example of a hybrid uninterruptible power source consistent with the present disclosure.
[0003] Figure 2 illustrates a diagram of an example of a hybrid uninterruptible power source consistent with the present disclosure.
[0004] Figure 3 illustrates a diagram of an example of a hybrid uninterruptible power source consistent with the present disclosure.
[0005] Figure 4 illustrates a diagram of an example of a hybrid uninterruptible power source consistent with the present disclosure. Detailed Description
[0006] A number of examples for a hybrid uninterruptible power source (UPS) are described herein. In some examples, a system for a hybrid uninterruptible power source includes a number of battery modules that each include a corresponding modular boost converter, wherein the number of battery modules and corresponding module boost converters are coupled in parallel. In an additional example, a system for a hybrid uninterruptible power source includes an enclosure encasing: an alternating current (AC) input coupled to a bidirectional inverter, a plurality of battery modules coupled to the bidirectional inverter, wherein the plurality of battery modules are each coupled to corresponding module boost converter, and a removable inverter coupled to the plurality of battery modules and an output. In an additional example, a system for a hybrid uninterruptible power source includes a battery module coupled to a module boost converter within an enclosure of the hybrid UPS, wherein the module boost converter converts power from the battery module to high voltage direct current (HVDC) during a first mode and acts as a buck converter for the battery module during a second mode (e.g., charging mode, etc.).
[0007] The hybrid UPS as described herein can utilize an optional and/or removable inverter to enable the hybrid UPS to be utilized in both direct current (DC) and alternating current (AC) environments. In addition, the hybrid UPS as described herein can utilize individual modular boost converters for each of a number of battery modules so regardless of the number of battery modules coupled in parallel, the conversion to high voltage direct current (HVDC) performed by the modular boost converters is performed individually.
[0008] The hybrid UPS as described herein can reduce a number of conversion steps (e.g., conversion from battery power to HVDC, conversion from battery power to AC, filtering output stage power to obtain a sine wave, etc.) which can increase an efficiency and a reliability of the UPS. In some examples, the hybrid UPS can utilize removable battery modules. For example, the number of battery modules and modular boost converters can be hot pluggable (e.g., configured to couple and decouple from the UPS when power is flowing to the UPS, etc.) into the UPS. The removable battery modules can be detached from the hybrid UPS for shipping purposes and/or replacement of individual battery modules. For example, the hybrid UPS enclosure can be shipped separately from the number of battery modules and/or modular boost converters. In addition, when a battery module fails, a replacement battery module can be shipped to a user to replace only the failed battery module.
[0009] The hybrid UPS as described herein can reduce cost and increase reliability by eliminating conversion steps and including a removable inverter. The hybrid UPS can also increase power density by utilizing battery modules in parallel that are each coupled to a corresponding modular boost converter. In addition, the hybrid UPS can reduce weight with the removal of semiconductors and corresponding heat sinks that are normally utilized in conversion steps that are reduced. Thus, the hybrid UPS can provide multiple advantages over previous UPS systems and methods.
[0010] The figures herein follow a numbering convention in which the first digit corresponds to the drawing figure number and the remaining digits identify an element or component in the drawing. Elements shown in the various figures herein may be capable of being added, exchanged, and/or eliminated so as to provide a number of additional examples of the present disclosure. In addition, the proportion and the relative scale of the elements provided in the figures are intended to illustrate the examples of the present disclosure, and should not be taken in a limiting sense.
[0011] Figure 1 illustrates a diagram of an example of a hybrid uninterruptible power source (UPS) 100 consistent with the present disclosure. The hybrid UPS 100 can include an input 102. In some examples, the input 102 can be coupled to a main power source that provides power to a load connected to an output 1 16 during normal operation. In some examples, the input 102 can be coupled to an alternating current (AC) power source that provides AC power to a load coupled to the output 1 16.
[0012] In some examples, the hybrid UPS 100 can include a silicon controlled rectifier (SCR) 104 to act as switch to backup power when a main power source and/or AC power source coupled to the input 102 is deactivated or fails. For example, the SCR 104 can be deactivated when the main power source coupled to the input 102 is deactivated or fails. In this examples, the SCR 104 can be activated when the main power source coupled to the input 102 is activated or functioning properly. When the main power source coupled to the input 102 is activated, the main power source can be coupled to a bidirectional inverter 106 (e.g., an alternating current to direct current (AC- DC) charger in a first direction, a direct current to alternating current inverter in a second direction, etc.) . The bidirectional inverter 106 can be utilized to charge a number of battery modules 108-1 , 108-2, 108-3, 108-4, 108-5 when the main power source is activated. In addition, the bidirectional inverter 106 can be utilized to convert direct current (DC) to alternating current (AC) in an opposite direction.
[0013] In some examples, each of the number of battery modules 108-1 , 108-2, 108-3, 108-4, 108-5 can be coupled to a corresponding modular boost converter 1 10-1 , 1 10-2, 1 10-3, 1 10-4, 1 10-5. For example, battery module 108-1 can be coupled to modular boost converter 1 10-1. In some examples, each of the number of modular boost converters 1 10-1 , 1 10-2, 1 10-3, 1 10-4, 1 10-5 can be bidirectional converters. For example, the number of modular boost converters 1 10-1 , 1 10-2, 1 10-3, 1 10-4, 1 10-5 can be utilized as a buck converter when charging the number of battery modules 108- 1 , 108-2, 108-3, 108-4, 108-5. In this example, the number of modular boost converters 1 10-1 , 1 10-2, 1 10-3, 1 10-4, 1 10-5 can provide a voltage step down for a corresponding battery module 108-1 , 108-2, 108-3, 108-4, 108-5. In addition, the number of modular boost converters 1 10-1 , 1 10-2, 1 10-3, 1 10-4, 1 10-5 can be utilized to establish high voltage direct current (HVDC) for each of the corresponding battery modules 108-1 , 108-2, 108-3, 108-4, 108-5 when a main power source coupled to the input 102 is deactivated or malfunctioning.
[0014] As described herein, each of the battery modules 108-1 , 108-2, 108-3, 108-4, 108-5 can have a voltage boost established by a corresponding modular boost converter 1 10-1 , 1 10-2, 1 10-3, 1 10-4, 1 10-5. In some examples, each of the number of battery modules 108-1 , 108-2, 108-3, 108-4, 108-5 can each be individually boosted (e.g., voltage boosting, etc.) by a corresponding modular boost converter 1 10-1 , 1 10-2, 1 10-3, 1 10-4, 1 10-5 to individually provide HVDC from each of the number of battery modules 108-1 , 108-2, 108-3, 108-4, 108-5. In these examples, the number of battery modules 108-1 , 108-2, 108-3, 108-4, 108-5 can each individually provide HVDC voltage to a DC bus 1 1 1 to provide power to the output 1 16. That is, in some examples, only a portion of the battery modules 108-1 , 108-2, 108-3, 108-4, 108-5 can be utilized to provide the full HVDC voltage (e.g., 380Vdc, 240Vdc, etc.) to a DC bus 1 1 1 and consequently provide power to a load connected to the output 1 16.
[0015] In some examples, the number of battery modules 108-1 , 108-2, 108-3, 108-4, 108-5 can be removable battery modules. That is, each of the number of battery modules 108-1 , 108-2, 108-3, 108-4, 108-5 can be removed from the hybrid UPS 100. In some examples, one or more of the number of battery modules 108-1 , 108-2, 108-3, 108-4, 108-5 can be removed from the hybrid UPS 100 and a number of remaining battery modules 108-1 , 108-2, 108-3, 108-4, 108-5 can be utilized to provide HVDC power to a load connected to the output 1 16 since each of the remaining battery modules 108-1 , 108-2, 108-3, 108-4, 108-5 are connected to corresponding modular boost converters 1 10-1 , 1 10-2, 1 10-3, 1 10-4, 1 10-5. Similarly, the number of modular boost converters 1 10-1 , 1 10-2, 1 10-3, 1 10-4, 1 10-5 can be removable modular boost converters that can be removed from the hybrid UPS 100 enclosure to provide a number of different configurations.
[0016] In some examples, the number of battery modules 108-1 , 108-2, 108-3, 108-4, 108-5 and corresponding modular boost converters 1 10-1 , 1 10-2, 1 10-3, 1 10-4, 1 10-5 can be coupled to a removable inverter 1 12. The inverter 1 12 can be utilized for systems that include a number of loads coupled to the output 1 16 that can utilize AC power. The inverter 1 12 can convert HVDC from the number of battery modules 108-1 , 108-2, 108-3, 108-4, 108-5 and corresponding modular boost converters 1 10-1 , 1 10-2, 1 10-3, 1 10-4, 1 10-5 to AC power. In some examples, the removable inverter 1 12 can be coupled to an alternating current SCR (AC SCR) 1 14 so that AC power can be provided by the number of battery modules 108-1 , 108-2, 108-3, 108-4, 108-5 and corresponding modular boost converters 1 10-1 , 1 10-2, 1 10-3, 1 10-4, 1 10-5 in the event that a main power source coupled to the input 102 is deactivated or fails.
[0017] The hybrid UPS 100 can provide an adaptive output run time based on a quantity of removable battery modules 108-1 , 108-2, 108-3, 108-4, 108-5 and corresponding modular boost converters 1 10-1 , 1 10-2, 1 10-3, 1 10-4, 1 10-5 that are utilized. For example, an adaptive output run time can be executed by installing a particular quantity of battery modules 108-1 , 108-2, 108-3, 108-4, 108-5 and
corresponding modular boost converters 1 10-1 , 1 10-2, 1 10-3, 1 10-4, 1 10-5. In this example, a first system may utilize a first output run time and may utilize a quantity of two battery modules 108-1 , 108-2 with corresponding modular boost converters 1 10-1 , 1 10-2. In this example, a second system may utilize a second output run time that is greater than the first output run time for the first system and may utilize a quantity of four battery modules 108-1 , 108-2, 108-3, 108-4, 108-5 and corresponding modular boost converters 1 10-1 , 1 10-2, 1 10-3, 1 10-4, 1 10-5. Thus, the UPS 100 can be customized and/or adaptive to particular systems (e.g., computing systems, server systems, etc.).
[0018] In some examples, a relay switch (not shown) can be utilized to engage the removable inverter 1 12 and/or disengage the removable inverter 1 12 depending on a determined load requirement (e.g., load utilizes DC power, load utilizes AC power, etc.). The relay switch can enable the hybrid UPS 100 to be utilized with systems that utilize either AC power or DC power as described herein. Thus, in some examples, the relay switch can change a position between alternating current and direct current based on power utilization of a load coupled to the output 1 16. In some examples,
communication lines can be coupled to the hybrid UPS 100 (e.g., USB coupled to a communication controller, Ethernet coupled to a communication controller, etc.) to control the relay switch from an external location from the enclosure.
[0019] The hybrid UPS 100 can utilize relatively smaller modular boost converters 1 10-1 , 1 10-2, 1 10-3, 1 10-4, 1 10-5 compared to previous UPS systems and methods since each modular boost converter 1 10-1 , 1 10-2, 1 10-3, 1 10-4, 1 10-5 corresponds to a particular battery module 108-1 , 108-2, 108-3, 108-4, 108-5. The hybrid UPS 100 can utilize fewer conversion stages which can enable the number of battery modules 108-1 , 108-2, 108-3, 108-4, 108-5 to provide power to an intended load (e.g., load coupled to output 1 16) for a relatively longer period of time. In addition, the hybrid UPS 100 can be shipped to a user relatively cheaper compared to previous UPS systems since the number of battery modules 108-1 , 108-2, 108-3, 108-4, 108-5 can be shipped individually, which can avoid hazardous waste shipping costs.
[0020] Figure 2 illustrates a diagram of an example of a hybrid uninterruptible power source (UPS) 220 consistent with the present disclosure. The hybrid UPS 220 can include the same and/or similar elements as hybrid UPS 100 as referenced in Figure 1. The hybrid UPS 220 however, is shown with the removable inverter (e.g., removable inverter 1 12 as referenced in Figure 1 , etc.) removed from the hybrid UPS 220. Thus, the hybrid UPS 220 can provide alternating current (AC) to devices coupled to the output 216 when a main power source coupled to the input 202 is functional and/or activated and provide direct current (DC) to devices coupled to the output 216 when the main power source coupled to the input 202 is non-functional and/or deactivated.
[0021] In some examples, the input 202 can be an AC input that is coupled to an AC power source such as a main power source for a number of devices coupled to the output 216. In some examples, the input 202 can be connected to a silicon controlled rectifier (SCR) 204 to act as a switch to backup power when the main power source coupled to the input 202 is deactivated or fails. In some examples, the SCR 204 can sense when power from the main power source coupled to the input 102 is no longer providing AC power. In these examples, the SCR 204 can deactivate (e.g., turn off, not allow power to flow past the SCR 204 etc.).
[0022] In some examples, the input 202 can be coupled to a bidirectional inverter 206. In some examples, the bidirectional inverter 206 can perform a similar or the same function as bidirectional inverter 106 as referenced in Figure 1. That is, the bidirectional inverter 206 can be utilized to charge a number of battery modules 208-1 , 208-2, 208-3, 208-4, 208-5 when a main power source coupled to the input 202 is activated. In addition, the bidirectional inverter 206 can be utilized to convert DC to AC when the main power source coupled to the input 202 is deactivated. In some examples, the bidirectional inverter 206 can be coupled in parallel to a number of modular boost converters 210-1 , 210-2, 210-3, 210-4, 210-5. The number of modular boost converters can perform a similar or the same function as the number of modular boost converters 1 10-1 , 1 10-2, 1 10-3, 1 10-4, 1 10-5 as referenced in Figure 1. That is, when the main power source coupled to the input 202 is activated, the bidirectional inverter 206 can be utilized to provide a DC charge to the number of modular boost converters 210-1 , 210-
2, 210-3, 210-4, 210-5 and the number of modular boost converters 210-1 , 210-2, 210-
3, 210-4, 210-5 can receive the DC charge and act as a buck converter to provide a voltage step down for a corresponding battery module 208-1 , 208-2, 208-3, 208-4, 208- 5. Thus, each battery module 208-1 , 208-2, 208-3, 208-4, 208-5 can be individually charged in parallel by the bidirectional inverter 206 when the main power source coupled to the input 202 is activated.
[0023] In some examples, the number of battery modules 208-1 , 208-2, 208-3, 208-4, 208-5 and corresponding modular boost converters 210-1 , 210-2, 210-3, 210-4, 210-5 can be coupled to a SCR (DC SCR) 214 for providing DC power to a load coupled to the output 216 when the main power source coupled to the input 202 is deactivated. In some examples, the SCR 214 can be activated when there is an indication that the main power source coupled to the input 202 has failed or has become deactivated. When the SCR 214 is activated, the number of modular boost converters 210-1 , 210-2, 210-3, 210-4, 210-5 can function as boost converters to alter a voltage of the number of battery modules 208-1 , 208-2, 208-3, 208-4, 208-5 to a high voltage direct current (HVDC). For example, the number of modular boost converters 210-1 , 210-2, 210-3, 210-4, 210-5 can boost a voltage of a corresponding battery module 208- 1 , 208-2, 208-3, 208-4, 208-5 to HVDC power (e.g., 380 volts direct current (Vdc), 240 Vdc, etc.).
[0024] The hybrid UPS 220 can provide an adaptive output run time based a quantity of removable battery modules 208-1 , 208-2, 208-3, 208-4, 208-5 and corresponding modular boost converters 210-1 , 210-2, 210-3, 210-4, 210-5 that are utilized. For example, an adaptive output run time can be executed by installing a particular quantity of battery modules 208-1 , 208-2, 208-3, 208-4, 208-5 and
corresponding modular boost converters 210-1 , 210-2, 210-3, 210-4, 210-5. In this example, a first system may utilize a first output run time and may utilize a quantity of two battery modules 208-1 , 208-2 with corresponding modular boost converters 210-1 , 210-2. In this example, a second system may utilize a second output run time that is greater than the first output run time for the first system and may utilize a quantity of four battery modules 208-1 , 208-2, 208-3, 208-4, 208-5 and corresponding modular boost converters 210-1 , 210-2, 210-3, 210-4, 210-5. Thus, the UPS 220 can be customized and/or adaptive to particular systems (e.g., computing systems, server systems, etc.). [0025] The hybrid UPS 200 can utilize relatively smaller modular boost converters 210-1 , 210-2, 210-3, 210-4, 210-5 compared to previous UPS systems and methods since each modular boost converter 210-1 , 210-2, 210-3, 210-4, 210-5 corresponds to a particular battery module 208-1 , 208-2, 208-3, 208-4, 208-5. The hybrid UPS 200 can utilize fewer conversion stages which can enable the number of battery modules 208-1 , 208-2, 208-3, 208-4, 208-5 to provide power to an intended load (e.g., load coupled to output 216) for a relatively longer period of time. In addition, the hybrid UPS 200 can be shipped to a user relatively cheaper compared to previous UPS systems since the number of battery modules 208-1 , 208-2, 208-3, 208-4, 208-5 can be shipped individually, which can avoid hazardous waste shipping costs.
[0026] Figure 3 illustrates a diagram of an example of a hybrid uninterruptible power source (UPS) 300 consistent with the present disclosure. The hybrid UPS 300 can be a more detailed representation of the hybrid UPS 100 as referenced in Figure 1. The hybrid UPS 300 can include an input 302 that can be coupled to an alternating current (AC) power source (e.g., main power source, etc.). The input 302 can be coupled to an input SCR 322 similarly to the hybrid UPS 100 as referenced in Figure 1 and/or the hybrid UPS 220 as referenced in Figure 2. In some examples, the input SCR 322 can be coupled to an output 316 for providing AC power to a number of loads coupled to the output 316.
[0027] The hybrid UPS 300 can include a number of modular boost converters 310-1 , 310-2, 310-3, 310-4, 310-5 coupled to a number of corresponding battery modules 308-1 , 308-2, 308-3, 308-4, 308-5. As described herein, the number of modular boost converters 310-1 , 310-2, 310-3, 310-4, 310-5 can act as a buck converter to provide a voltage step down for a corresponding battery module 308-1 , 308-2, 308-3, 308-4, 308-5 when the main power source coupled to the input 302 is activated. In addition, the number of modular boost converters 310-1 , 310-2, 310-3, 310-4, 310-5 can function as boost converters to alter a voltage of the number of battery modules 308-1 , 308-2, 308-3, 308-4, 308-5 to a high voltage direct current (HVDC) when the main power source coupled to the input 302 is deactivated or not functioning as described herein. [0028] In some examples, the number of modular boost converters 310-1 , 310-2, 310-3, 310-4, 310-5 and corresponding number of battery modules 308-1 , 308-2, 308-3, 308-4, 308-5 can be coupled in parallel to a removable inverter 312. The removable inverter 312 can be utilized for systems that include a number of loads coupled to the output 316 that can utilize AC power. The removable inverter 312 can convert HVDC from the number of battery modules 308-1 , 308-2, 308-3, 308-4, 308-5 and
corresponding modular boost converters 310-1 , 310-2, 310-3, 310-4, 310-5 to AC power. In some examples, the removable inverter 312 can be coupled to an output 316 that can be coupled to a number of loads that utilize AC power.
[0029] In some examples, the hybrid UPS 300 can include a communication controller 324. The communication controller 324 can be utilized to receive
communication from a host and/or user associated with the hybrid UPS 300. In some examples, the communication controller 324 can be utilized to alter a state (e.g., function, performance, activated, deactivated, etc.) of the hybrid UPS 300. For example, the communication controller 324 can be utilized to change a number of settings of the hybrid UPS 300 from a remote location from the hybrid UPS 300.
[0030] In some examples, the hybrid UPS 300 can include a liquid crystal display (LCD) 329 to display a state of the hybrid UPS 300. In some examples, the LCD 329 can be positioned on a front view board 328. In some examples, the front view board 328 can display the number of battery modules 308-1 , 308-2, 308-3, 308-4, 308-5 so that a user can determine a quantity and/or model of each of the number of battery modules 308-1 , 308-2, 308-3, 308-4, 308-5. In some examples, the hybrid UPS 300 can include a rear view board 326 that includes a number of physical connections (e.g., AC input connection 302, AC/DC output connections, universal serial bus (USB) connections, Ethernet connections, etc.). For example, the rear view board 326 can include a number of USB and/or Ethernet connections for coupling the communication controller 324 to an external computing device and/or network. In another example, the rear view board 326 can include a number of C19 and/or C13 output connections that can be utilized to provide AC and/or DC power to a load.
[0031] Figure 4 illustrates a diagram of an example of a hybrid uninterruptible power source (UPS) 420 consistent with the present disclosure. The hybrid UPS 420 can be a more detailed representation of the hybrid UPS 220 as referenced in Figure 2. That is, the hybrid UPS 420 can provide AC power to a number of loads when a main power source that is coupled to an input 402 is activated and/or functional and provide DC power (e.g., HVDC power, etc.) to a number of loads when the main power source that is coupled to the input 402 is deactivated and/or non-functional. In some examples, a removable inverter (e.g., removable inverter 1 12, removable inverter 312, etc.) can be removed from the hybrid UPS 420.
[0032] The hybrid UPS 400 can include a number of modular boost converters 410-1 , 410-2, 410-3, 410-4, 410-5 coupled to a number of corresponding battery modules 408-1 , 408-2, 408-3, 408-4, 408-5. As described herein, the number of modular boost converters 410-1 , 410-2, 410-3, 410-4, 410-5 can act as a buck converter to provide a voltage step down for a corresponding battery module 408-1 , 408-2, 408-3, 408-4, 408-5 when the main power source coupled to the input 402 is activated. In addition, the number of modular boost converters 410-1 , 410-2, 410-3, 410-4, 410-5 can function as boost converters to alter a voltage of the number of battery modules 408-1 , 408-2, 408-3, 408-4, 408-5 to a high voltage direct current (HVDC) when the main power source coupled to the input 402 is deactivated or not functioning as described herein.
[0033] In some examples, the number of modular boost converters 410-1 , 410-2, 410-3, 410-4, 410-5 and corresponding number of battery modules 408-1 , 408-2, 408-3, 408-4, 408-5 can be coupled in parallel to a DC output SCR 414. That is coupled to an AC/DC output 416.
[0034] In some examples, the hybrid UPS 420 can include a communication controller 424. The communication controller 424 can be utilized to receive
communication from a host and/or user associated with the hybrid UPS 420. In some examples, the communication controller 424 can be utilized to alter a state (e.g., function, performance, activated, deactivated, etc.) of the hybrid UPS 420. For example, the communication controller 424 can be utilized to change a number of settings of the hybrid UPS 420 from a remote location from the hybrid UPS 420.
[0035] In some examples, the hybrid UPS 420 can include a liquid crystal display (LCD) 429 to display a state of the hybrid UPS 420. In some examples, the LCD 429 can be positioned on a front view board 428. In some examples, the front view board 428 can display the number of battery modules 408-1 , 408-2, 408-3, 408-4, 408-5 so that a user can determine a quantity and/or model of each of the number of battery modules 408-1 , 408-2, 408-3, 408-4, 408-5. In some examples, the hybrid UPS 420 can include a rear view board 426 that includes a number of physical connections (e.g., AC input connection 402, AC/DC output connections, universal serial bus (USB) connections, Ethernet connections, etc.). For example, the rear view board 426 can include a number of USB and/or Ethernet connections for coupling the communication controller 424 to an external computing device and/or network. In another example, the rear view board 426 can include a number of C19 and/or C13 output connections that can be utilized to provide AC and/or DC power to a load.
[0036] As used herein, "logic" is an alternative or additional processing resource to perform a particular action and/or function, etc., described herein, which includes hardware, e.g., various forms of transistor logic, application specific integrated circuits (ASICs), etc., as opposed to computer executable instructions, e.g., software firmware, etc., stored in memory and executable by a processor. Further, as used herein, "a" or "a number of something can refer to one or more such things. For example, "a number of widgets" can refer to one or more widgets.
[0037] The above specification, examples and data provide a description of the method and applications, and use of the system and method of the present disclosure. Since many examples can be made without departing from the spirit and scope of the system and method of the present disclosure, this specification merely sets forth some of the many possible example configurations and implementations.

Claims

What is claimed:
1. A system for a hybrid uninterruptible power source (UPS), comprising:
a number of battery modules that each include a corresponding modular boost converter, wherein the number of battery modules and corresponding module boost converters are coupled in parallel.
2. The system of claim 1 , wherein the number of battery modules are coupled to a removable power inverter.
3. The system of claim 1 , comprising an input to receive alternating current and an output to supply alternating current and direct current.
4. The system of claim 1 , wherein the corresponding module boost converters each covert direct current from the number of battery modules to high voltage direct current (HVDC) individually.
5. The system of claim 1 , wherein the number of battery modules and
corresponding module boost converters are encased within the same enclosure.
6. The system of claim 1 , wherein the corresponding module boost converters are utilized to boost only the corresponding battery module.
7. The system of claim 1 , comprising at least one battery module, from the number of battery modules, coupled in parallel with at least one other battery module from the number of battery modules.
8. A system for a hybrid uninterruptible power source (UPS), comprising:
an enclosure encasing:
an alternating current (AC) input coupled to a bidirectional inverter; a plurality of battery modules coupled to the bidirectional inverter, wherein the plurality of battery modules are each coupled to corresponding module boost converters; and
a removable inverter coupled to the plurality of battery modules and an output.
9. The system of claim 8, comprising a relay switch to change a position between alternating current and direct current based on power utilization of a load coupled to the output.
10. The system of claim 9, comprising communication lines coupled to the relay switch to control the relay switch external to the enclosure.
1 1. The system of claim 8, wherein the corresponding module boost converters operate as buck converters during charging of the plurality of battery modules.
12. A system for a hybrid uninterruptible power source (UPS), comprising:
a battery module coupled to a module boost converter within an enclosure of the hybrid UPS, wherein the module boost converter converts power from the battery module to high voltage direct current (HVDC) during a first mode and acts as a buck converter for the battery module during a second mode.
13. The system of claim 12, wherein the first mode includes an activation mode where power from the battery module is to be utilized by a load coupled to the hybrid UPS and the second mode includes a charging mode where the battery module is charged by a bidirectional inverter.
14. The system of claim 12, wherein the module boost converter acts as a buck converter when the module boost converter provides a voltage step down and a current step up for the battery module.
15. The system of claim 12, comprising a controller to enable external communication and control functions with the hybrid UPS.
PCT/US2015/057798 2015-10-28 2015-10-28 Hybrid uninterruptible power source WO2017074348A1 (en)

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