WO2024050812A1 - 冗余供电装置、系统、不间断电源设备、开关和控制方法 - Google Patents

冗余供电装置、系统、不间断电源设备、开关和控制方法 Download PDF

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Publication number
WO2024050812A1
WO2024050812A1 PCT/CN2022/118093 CN2022118093W WO2024050812A1 WO 2024050812 A1 WO2024050812 A1 WO 2024050812A1 CN 2022118093 W CN2022118093 W CN 2022118093W WO 2024050812 A1 WO2024050812 A1 WO 2024050812A1
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Prior art keywords
power supply
output
supply device
uninterruptible power
rectifier
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PCT/CN2022/118093
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English (en)
French (fr)
Inventor
宫新光
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航霈科技(深圳)有限公司
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Priority to PCT/CN2022/118093 priority Critical patent/WO2024050812A1/zh
Priority to CN202280003297.XA priority patent/CN115843410B/zh
Publication of WO2024050812A1 publication Critical patent/WO2024050812A1/zh

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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
    • H02J4/00—Circuit arrangements for mains or distribution networks not specified as ac or dc
    • 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
    • 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
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems

Definitions

  • the present application relates to the field of power supply technology, and more specifically, to a redundant power supply device, system, uninterruptible power supply equipment, switch and control method.
  • UPS Uninterruptable Power System, uninterruptible power supply equipment
  • UPS is a redundant power supply equipment connected between the critical equipment load and the AC power supply. It is used to provide continuous power supply to the load when the AC power supply is working normally, and when the AC power supply is interrupted. Under certain conditions, stable power supply to the load is guaranteed within a predetermined time.
  • UPS includes three output modes: main circuit power supply mode, bypass power supply mode and energy storage unit power supply mode. Among them, the main circuit and bypass are usually coupled in parallel to supply power to the load. When supplying power, the main circuit One of the bypass circuits is connected and the other is interrupted.
  • UPSs In order to achieve greater redundancy, in actual applications, multiple UPSs will be connected in parallel and run in a standby redundant manner.
  • two sets of UPSs will have independent outputs to form a dual-circuit power supply, and the two sets of UPSs will operate in a mutually redundant backup manner.
  • the main circuit of the two sets of UPS When the power supply is normal (relative to failure and maintenance), the main circuit of the two sets of UPS is on and the bypass is disconnected.
  • the main circuit of the two sets of UPS drives all the loads, and the bypass is reserved for long-term backup, and the main circuit of the two sets of UPS Either way or bypass can meet the required capacity of all loads.
  • the UPS power supply redundancy system design usually uses a dual redundant 2N power supply method to power the load.
  • the 2N UPS input power supply will also provide additional power. Configure bus contacts.
  • embodiments of the present application provide a redundant power supply device, system, uninterruptible power supply equipment, switch and control method to at least partially solve the above problems.
  • a redundant power supply device including two groups of uninterruptible power supply equipment, wherein each group of the uninterruptible power supply equipment includes a main path and a bypass path that are independent of each other;
  • the output terminals of the two main circuits of the two groups of uninterruptible power supply equipment serve as two first outputs; the output terminals of the two bypass paths of the two groups of uninterruptible power supply equipment are connected in parallel as the second output, and one of the two bypass paths At least one bypass is in a conductive state; the second output and the two first outputs are combined in pairs for redundant power supply to the load.
  • another redundant power supply device including: a first power supply and a second power supply, a first bus bar and a second bus bar, a first uninterruptible power supply device and a second uninterruptible power supply device.
  • equipment, dual power supply switch the first power supply is connected to the first uninterruptible power supply device through the first busbar, and the output end of the first uninterruptible power supply device serves as the first first output;
  • the second power supply is connected to the second uninterruptible power supply device through the second bus bar, and the output end of the second uninterruptible power supply device serves as the second first output;
  • the first power supply is connected to the second uninterruptible power supply device through the first bus bar.
  • the second power supply is connected to the second input end of the dual power supply switch through the second bus bar, the dual power supply switch is used to switch the first At least one of the input terminal and the second input terminal is connected to its output terminal, and the output terminal of the dual power switch serves as the second output; the first first output and the second path The first output and the second output are combined in pairs to provide redundant power supply to the load.
  • a redundant power supply system includes the redundant power supply device described in any one of the above.
  • an uninterruptible power supply device including: a main circuit and a bypass circuit that are independent of each other, and the main circuit and the bypass circuit are used to conduct power supply to a load at the same time.
  • a dual power supply switch including: a first input terminal, a second input terminal, and an output terminal.
  • the first input terminal is used to connect a first uninterruptible power supply device.
  • Bus bar the second input end is used to connect the bus bar of the second uninterruptible power supply device
  • the output end of the main path of the first uninterruptible power supply device serves as the first output of the first path, the second uninterruptible power supply device
  • the output end of the main circuit serves as the second first output
  • the dual power switch is used to conduct at least one of the first input end and the second input end to its output end.
  • the output end of the power switching switch serves as the second output; the first and second first outputs and the second output are combined in pairs for redundant power supply to the load.
  • a redundant power supply control method is provided, which is applied to a controller of uninterruptible power supply equipment in a redundant power supply system, including: controlling two main circuit conductors of two groups of uninterruptible power supply equipment. to connect the output terminals of the two main circuits as two first outputs; to control at least one of the two bypasses of the two sets of uninterruptible power supply equipment to conduct the two bypasses.
  • the output terminals are connected in parallel as the second output, so that the second output and the two first outputs are combined to redundantly supply power to the load.
  • the output terminals of the main circuits of the two groups of UPS are respectively used as two first outputs, and the bypass circuits of the two groups of UPS are connected in parallel as the second output.
  • the second output and the two first outputs are simultaneously connected. Pass through, and the two-by-two combination supplies power to the load to ensure that sufficient power can be provided to the load.
  • the main circuits of the two sets of UPS as the two first outputs and the bypasses in parallel as the second output
  • at least the first output and the second output are powered together during normal power supply without all bypasses being disconnected and on standby. state, compared with the existing two main circuits that provide load power supply, in this embodiment, two main circuits and at least one bypass can be used to provide load power supply, adding a bypass for carrying the load, so that it can Reduce UPS capacity to improve equipment utilization and reduce costs.
  • FIG. 1 is a schematic structural diagram of a UPS redundant power supply device according to an embodiment of the present application
  • FIG. 2 is a schematic structural diagram of another UPS redundant power supply device according to an embodiment of the present application.
  • FIG. 3 is a schematic diagram of a UPS redundant power supply device that eliminates the bus tie switch according to an embodiment of the present application
  • FIG. 4 is a schematic diagram of a UPS redundant power supply device including a UPS group according to an embodiment of the present application
  • FIG. 5 is a schematic structural diagram of a UPS redundant power supply device including a dual power switch according to an embodiment of the present application
  • FIG. 6 is a schematic structural diagram of another UPS redundant power supply device including dual power switching switches according to an embodiment of the present application
  • FIG. 7 is a schematic diagram of a UPS redundant power supply device that cancels UPS bypass according to an embodiment of the present application
  • FIG. 8 is a schematic flowchart of a UPS redundant power supply control method according to an embodiment of the present application.
  • this application provides a redundant power supply device , including two groups of UPS, each group of UPS includes independent main paths and bypasses.
  • the main circuit is used to continuously supply power to the load.
  • the main circuit can be a circuit composed of a rectifier and an inverter connected in series.
  • the input terminal of the rectifier serves as the input terminal of the main circuit.
  • the output terminal of the rectifier is connected to the input terminal of the inverter.
  • the inverter The output end of the rectifier is used as the AC output end of the main circuit, or the main circuit can only include a rectifier, the input end of the rectifier is used as the input end of the main circuit, and the output end of the rectifier is used as the DC output end of the main circuit.
  • the main circuit may also include other adapted devices, such as power distribution cabinets.
  • the bypass is used to be connected in parallel with the bypass output of another UPS as a separate output (i.e. the second output).
  • the bypass can be a circuit including a static switch.
  • the static switch can be replaced with other suitable switches.
  • the bypass can also include other adapted devices, such as power distribution cabinets, etc.
  • the main and bypass outputs of the UPS are coupled, and the main and bypass outputs of the UPS are connected in one way and the other is disconnected for power supply.
  • the main circuit is on and the bypass is disconnected as a backup.
  • the bypass is on and the main circuit is disconnected for maintenance or repair.
  • the UPS is in normal power supply state most of the time, so There is a situation where the main circuits of two sets of UPS drive all the loads for a long time, and their bypasses are on standby for a long time, and the power supply capacity of the main circuits of both sets of UPSs meets the load capacity, resulting in problems of large redundant capacity and high costs.
  • the on-off of the main circuit and the on-off of the bypass are independent of each other. Being independent means that the outputs of the main circuit and the bypass are not coupled. If the main circuit is used as the first output and the bypass is connected in parallel as the second output, The switching of the main circuit will not affect the output state of the second output, and the switching of the bypass will not affect the output state of the first output.
  • the output terminals of the main circuits of the two groups of UPS are respectively used as two first outputs, and the bypass circuits of the two groups of UPS are connected in parallel as the second output.
  • the second output and the two first outputs are simultaneously connected.
  • pairwise combination provides power to the load to ensure that sufficient power can be provided to the load.
  • the main circuits of the two sets of UPS as the two first outputs and the bypasses in parallel as the second output, at least the first output and the second output are powered together during normal power supply without all bypasses being disconnected and on standby.
  • two main circuits and at least one bypass can be used to provide load power supply, adding a bypass for carrying the load, so that it can Reduce UPS capacity to improve equipment utilization and reduce costs.
  • UPS redundant power supply device provided in this embodiment through a specific implementation manner. It should be noted that in the embodiment of the present application, two groups of UPSs are connected in parallel as an example to illustrate the above-mentioned UPS redundant power supply device, but this is not a limitation of the present application.
  • the UPS redundant power supply device includes two groups of UPSs.
  • the UPSs include independent main paths and bypass paths.
  • the output terminals of the main paths of the two groups of UPS serve as two first outputs respectively;
  • the output terminals of the bypasses are connected in parallel as the second output, and at least one bypass is in a conducting state.
  • the number of loads is a multiple of three, where each load includes two input terminals, and each load may include multiple electrical devices. , the maximum power supply capacity required by each load is equal.
  • the UPS redundant power supply device can power three loads 50, and the second output and the two first outputs of the UPS redundant power supply device are connected to each load 50 in combination in pairs.
  • the two input terminals provide redundant power supply to the load 50.
  • one of the two UPS bypasses connected in parallel as the second output is connected and the other is disconnected.
  • the connected bypass supplies power for the second output.
  • the second output and the two first outputs The power supply is turned on at the same time so that the main power supply capacity of each group of UPS does not exceed 1/2 times the total capacity required by the load.
  • the capacity of the UPS group can be reduced to 1/2 times the total capacity required by the load 50. It saves equipment costs, and during normal power supply, the first output and the second output supply power together without leaving all bypasses in a disconnected standby state, which increases UPS utilization.
  • the UPS is generally connected to the power supply through a busbar, and can be provided between the busbars to control the conduction of the incoming lines of the two input power supplies 10 and the connection between the busbars 20 of the two incoming lines.
  • the conductive bus link switching device 22 is used to switch the power supply. As shown in Figure 2, the bus link switching device 22 can include three switches, namely the two incoming power switches 221 and 222 of the input power supply 10, and the bus tie switch 223. The switch control logic of selecting two out of three is used. The purpose is to connect the two busbars 20 by closing 223 when the output of 221 or 222 fails, so that both busbars 20 have power output.
  • the bus link switching device 22 can use automatic transfer switching equipment (ATS) or other suitable switching equipment.
  • ATS automatic transfer switching equipment
  • the input terminals of the two sets of UPS are respectively connected to corresponding power supplies 10.
  • the capacity of each power supply 10 is equal to the total capacity required by the load 50, so a single power supply 10 can supply all the loads 50.
  • the capacity of each group of UPS is equal to 1/2 times the total capacity required by the load 50. Compared with the conventional dual-circuit redundant power supply UPS, the total configuration capacity is not less than the load 50. 2 times the total required capacity can reduce the UPS capacity configuration and save costs.
  • the main circuit of the UPS can include a rectifier and an inverter.
  • the input end of the rectifier serves as the input end of the main circuit, and the output end of the inverter serves as the AC output of the main circuit. end.
  • the rectifier is used to convert alternating current into direct current.
  • the rectifier can be a unidirectional rectifier that works in one direction or a bidirectional rectifier that works in both directions.
  • the inverter is used to convert DC power into fixed-frequency, fixed-voltage or frequency-regulated and voltage-regulated AC power (generally single-phase 220V or 3-phase 380V, 50Hz sine wave).
  • the output terminal of the rectifier is connected to the input terminal of the inverter.
  • the AC power input to the UPS is converted into DC power through the rectifier, and then converted into AC power through the inverter to power the load.
  • the main circuit includes a rectifier 31 and an inverter 32 connected in series.
  • the input end of the rectifier 31 serves as the input end of the main circuit, and the output end of the inverter 32 serves as the output end of the main circuit.
  • the combination of the rectifier 31 and the inverter 32 can allow both AC and DC power to be used as power sources for the load 50, which increases the adaptability of the UPS.
  • the power supply is AC
  • the current is input from the input terminal of the rectifier 31 and output from the output terminal of the inverter 32
  • the power supply is DC
  • the current can be input from the input terminal of the inverter 32 and simultaneously from the inverter 32.
  • the output terminal of the converter 32 is output.
  • the main circuit includes a rectifier, the input end of the rectifier serves as the input end of the main circuit, and the output end of the rectifier serves as the DC output end of the main circuit, outputting DC power to the load, that is, when the power consumption type of the load is DC power , the rectifier can directly supply power to the load, so that when the power consumption type of the load is DC, it can also obtain matching power supply from the UPS, which increases the scope of application of the UPS.
  • the bypass includes a static switch.
  • the static switch is a contactless switch. It is generally composed of two thyristors connected in reverse parallel. Its closing and opening are controlled by a logic controller and can be controlled by the static switch. Opening and closing of bypass. Referring to Figure 3, using the bypass static switch 33 of the UPS, only one of the two bypasses connected in parallel at the output end can be turned on to supply power to the second output. At this time, the power supply source of the second output can be realized in these two bypasses.
  • the power supply of the two bypasses comes from the power supplies 10 of two sets of UPS respectively, so the bypass static switch 33 can be used to switch the power supply source of the second output between the power supplies 10 of the two sets of UPS, and
  • the main function of the bus tie switch 223 is to switch the power supply between the two external input power sources 10, so the bus tie switch 223 can be eliminated to reduce costs.
  • the power supply can be powered by one line being turned on and the other line being turned off.
  • the power supply can be powered by two bypasses being turned on at the same time, thus making the UPS power supply mode more diversified to adapt to various emergencies.
  • the UPS redundant power supply device shown in Figure 2 when the power supply of the left power supply 10 is interrupted, the static switches 33 of the two bypasses connected in parallel at the control output end are turned on, and the right power supply 10.
  • the UPS on the left can be powered through a parallel bypass to realize mutual backup of the two power supplies and increase the redundancy of the power supply.
  • the switch 21 between the input terminal of the UPS and the busbar 20 should be controlled to be disconnected when the power supply of the power supply 10 is interrupted.
  • the UPS also includes an energy storage unit or can be connected to an external energy storage unit through a reserved energy storage unit interface.
  • the energy storage unit serves as the backup power supply of the UPS, which can be a chemical energy storage device, such as a lead-acid battery, or Can be other suitable energy storage devices such as flywheels.
  • the UPS also includes an energy storage unit interface for connecting an external energy storage unit 40.
  • the energy storage unit interface is electrically connected to the output end of the rectifier 31 through the charging and discharging unit 34.
  • the charging and discharging The unit 34 is a device that controls the charging or discharging of the energy storage unit 40 according to the power supply condition; optionally, in another implementation of the embodiment of the present application, the UPS itself may include the energy storage unit 40, and the energy storage unit 40 is charged by the energy storage unit 40.
  • the discharge unit 34 is electrically connected to the output terminal of the rectifier 31 .
  • the UPS redundant power supply device can convert the DC power of the energy storage unit 40 into AC power to supply power to the load 50 through the inverter 32 according to the power consumption type of the load 50 when its power supply 10 is interrupted, or directly output
  • the direct current supplies power to the load 50 so that the energy storage unit 40 serves as a backup power supply to increase power supply redundancy.
  • the rectifier 31 of the main circuit can be a bidirectional rectifier.
  • the bidirectional rectifier works in the forward direction, it has the same function as the unidirectional rectifier.
  • the bidirectional rectifier works in the reverse direction, it is equivalent to an inverter, which can convert DC power into corresponding AC power, this mode is the inverter mode of the bidirectional rectifier.
  • the respective bypasses of the two groups of UPS are electrically connected to their respective electrically connected energy storage units 40 through bidirectional rectifiers, so that when the power supply 10 is interrupted, the UPS can convert the DC power of the energy storage unit 40 into AC power to supply power to the load 50 through the bidirectional rectifier. Therefore, the energy storage unit 40 can be used as a backup power supply to supply power to the second output, thereby increasing the redundancy of power supply.
  • the UPS when the rectifier 31 of the UPS is in the inverter mode to power the second output, the UPS controls the switch 21 between the input end of the rectifier 31 and the busbar 20 to be disconnected to prevent the UPS from reversing the direction of the power supply 10
  • the role of power feeding; optionally, the UPS can also control other switches between the input end of the rectifier 31 and the power supply 20 to disconnect.
  • the capacity of the two power supplies 10 is 1500kVA.
  • the output ends are connected in parallel as the second output of two UPS bypasses, one is turned on and the other is turned off.
  • the bypass static switch 33 of the left UPS is turned on and the bypass static switch 33 of the right UPS is turned off.
  • the main power supply capacity of the left UPS is 500kVA
  • the bypass power supply capacity of the left UPS is 500kVA
  • the main power supply capacity of the right UPS is 500kVA.
  • the power supply 10 of a group of UPS is interrupted, referring to Figure 2, the power supply 10 on the left side is interrupted, and the bus bar 20 of the right UPS can supply power to the UPS bus bar 20 on the left side through the bus link switching device 22. At this time, the UPS bypass is still Keep one circuit connected and the other circuit disconnected during normal power supply.
  • the main and bypass power supply capacities of the left UPS are both 750kVA, and the left UPS bypass is the second output.
  • Power supply that is, only the left bypass among the two bypasses connected in parallel at the output end is conductive.
  • the two loads 50 connected to the first output corresponding to the right UPS are respectively powered by the second output connected thereto or the first output corresponding to the left UPS.
  • the power supply capacity is 500kVA.
  • the power supply mode of the other load 50 is different. Change.
  • the energy storage unit 40 electrically connected to the two groups of UPS serves as a power source to provide direct current.
  • the direct current is input to the wire between the rectifier 31 and the inverter 32 through the charge and discharge unit 34.
  • the inverter 32 converts suitable alternating current to power the load 50 .
  • the DC power can only be converted into applicable AC power through the inverter 32, and the output terminal of the inverter 32 supplies power to the load 50, that is, only the first output supplies power, and the second output Unable to supply power.
  • the power supply capacity of the two first outputs is both 750kVA.
  • the two loads 50 connected to the second output are respectively powered by the first output connected to them.
  • the power supply capacity is 500kVA.
  • the power supply method of the other load 50 constant.
  • the direct current can also be converted into applicable alternating current through the bidirectional rectifier, and the original input terminal of the bidirectional rectifier is output to supply power to the load 50, that is, the second output can supply power at the same time as the first output.
  • the power supply capacity of the main path and the bypass is the same as the normal power supply, but the storage capacity of the UPS on the left side of the bypass is turned on.
  • the capacity of the energy unit 40 and its charge and discharge unit 34 needs to reach 1000kVA, otherwise it will cause overload.
  • the two bypasses connected in parallel at the output end can be turned on at the same time. At this time, the capacity of the energy storage unit 40 and its charging and discharging unit 34 of the two sets of UPS can reach 750kVA, and the power supply capacity of each bypass is 250kVA.
  • the capacity of the second output it consists of is 500kVA.
  • each group of UPS in the UPS redundant power supply device may also include several UPSs, in which the main circuits of several UPSs are connected in parallel as the main circuits of the group of UPSs, and the main circuits of several UPSs are connected in parallel.
  • Bypass parallel connection serves as the bypass of this group of UPS.
  • each group of UPS includes two UPSs connected in parallel.
  • the main path of each UPS is connected in parallel as the main path of the group of UPS
  • the bypass of each UPS is connected in parallel as the bypass of the group of UPS.
  • the input terminals of the two groups of UPS are respectively connected to their corresponding power supplies 10.
  • the capacity of each power supply 10 is equal to the total capacity required by the load 50, so a single power supply 10 is sufficient.
  • the power supplies 10 corresponding to the two sets of UPS serve as backups for each other, increasing the redundancy of power supply.
  • the capacity of each group of UPS is equal to 1/2 times the total capacity required for the load 50. Compared with the conventional UPS whose capacity is no less than the total capacity required for the load 50, the capacity configuration of the UPS can be reduced and equipment costs can be saved.
  • the UPS power supply mode is more diversified to adapt to various emergencies, increase the redundancy of power supply, and through parallel bypasses, the power supply connected between the bus bars can be reduced.
  • the bus tie switch 223 saves costs; through the combination of the rectifier 31 and the inverter 32, both AC and DC can be used as power supplies for the load 50, which increases the adaptability of the UPS; through the combination of the energy storage unit and the one-way rectifier, the storage
  • the energy storage unit 40 serves as a backup power supply for the first output.
  • the energy storage unit 40 serves as a backup power supply for the first output and the second output, and can continue to maintain power supply when the UPS input power supply is interrupted. Ensure the normal operation of the load.
  • the present application provides yet another redundant power supply device.
  • a dual power supply switch 60 is used in this embodiment.
  • UPS devices operate in a 2N redundant manner, and the main circuit is on and the bypass is disconnected in the working UPS, so there are two main circuits of the UPS that drive all the loads for a long time, and both The main power supply capacity of the UPS group meets the load capacity, resulting in the problem of large redundant capacity and high cost.
  • the UPS redundant power supply device includes: a first power supply and a second power supply, a first bus bar and a second bus bar, a first UPS and a second UPS, and a dual power supply switch 60 .
  • the output end of the first UPS serves as the first first output
  • the output end of the second UPS serves as the second first output
  • the first power supply is connected to the first input end of the dual power supply switch through the first busbar
  • the second power supply Connected to the second input terminal of the dual power supply switch through the second bus bar
  • the dual power switch is used to conduct at least one of the first input terminal and the second input terminal to its output terminal
  • the output terminal of the dual power supply switch as the second output.
  • the first input terminal and the second input terminal of the dual power supply switch can also be turned on at the same time, At this time, the output capacity of the main channel of the first UPS and the second UPS is N/3, and the output capacity of the bypass channel is N/6.
  • the rectifier is a bidirectional rectifier
  • the power supply of the first power supply and the second power supply is interrupted at the same time, if the first input terminal is turned on and the second input terminal is turned off, then the power supply will The capacity of an energy storage unit and its charging and discharging unit needs to reach 2N/3, otherwise it will cause overload. Therefore, in this case, the first input terminal and the second input terminal should be given priority to be powered at the same time.
  • the first The capacities of the energy storage unit, the second energy storage unit and each charging and discharging unit still only need to be N/2.
  • the dual power supply switch is used to automatically switch from the power outage to another power supply when there is a power outage for some reason.
  • the dual power supply switch can be the dual power switch provided in the fifth aspect of this application, or it can be other suitable Switches such as ATS and STS (Static Transfer Switch, static transfer switch).
  • the output end of the first UPS serves as the first first output
  • the output end of the second UPS serves as the second first output
  • the output end of the dual power supply switch serves as the second output.
  • the output end of the second UPS serves as the second first output.
  • the first output, the second output and the second output are turned on at the same time for redundant power supply to the load, ensuring that sufficient power can be provided to the load.
  • the output terminal of the first UPS is used as the first first output
  • the output terminal of the second UPS is used as the second first output
  • the dual power supply switch is used as the second output.
  • the second output and the two first outputs are The outputs supply power together without leaving all bypasses in a disconnected standby state.
  • the UPS capacity can be reduced, which improves equipment utilization and reduces costs.
  • FIG. 6 the structure of a UPS redundant power supply device is exemplarily shown, and specifically the structures of the first UPS, the second UPS and the dual power supply switch are shown.
  • the UPS redundant power supply device includes: the first power supply 101 and the second power supply 102, the first busbar 201 and the second busbar 202, the first UPS 310 and the second UPS 320, and the dual power supply switch 60.
  • the dual power supply switch may be an STS.
  • the power supply 10 on the left is the first power supply 101
  • the power supply 10 on the right is the second power supply 102
  • the busbar 20 on the left is the first busbar 201
  • the power supply 10 on the right is the first busbar 201.
  • the bus 20 is the second bus 202
  • the UPS on the left is the first UPS 310
  • the UPS on the right is the second UPS 320.
  • the first power supply 101 is connected to the first UPS 310 through the first bus bar 201, the output end of the first UPS 310 serves as the first first output, and the second power supply 102 is connected to the first UPS 310 through the second bus bar 202.
  • Two UPS 320, the output end of the second UPS 320 is used as the second first output.
  • the first power supply 101 is connected to the first input end of the dual power supply switch 60 through the first bus bar 201, and the second power supply 102 is connected to the second input end of the dual power supply switch 60 through the second bus bar 202.
  • the dual power supply switch 60 is In order to conduct at least one of the first input terminal and the second input terminal to its output terminal, the output terminal of the dual power switching switch serves as the second output; the first first output, the second first output and the second The outputs are combined in pairs for redundant power supply to the load 50.
  • the configuration of each output and the load 50 can refer to the embodiment of the first aspect of this application, using three outputs (two first outputs and one second output) to supply power to the load. Redundant power supply ensures that the power supply capacity of each UPS main circuit does not exceed 1/2 times the total capacity required for load 50.
  • the UPS capacity can be reduced to 1/2 times the total capacity required for load 50, saving equipment costs. .
  • the dual power switch 60 can be used to form a second output between the first UPS 310 and the second UPS 320, the bypass of the UPS can be canceled and the second output Replaces bypass for redundant power supply.
  • the first UPS 310 includes a first rectifier 311 and a first inverter 312 connected in series.
  • the input end of the first rectifier 311 serves as the input end of the first UPS 310
  • the output of the first inverter 312 terminal serves as the AC output terminal of the first UPS 310
  • the second UPS 320 may also include a second rectifier 321 and a second inverter 322 connected in series, and the input terminal of the second rectifier 321 serves as the input of the second UPS 320 end, the output end of the second inverter 322 serves as the AC output end of the second UPS 320
  • the combination of the first rectifier 311 and the inverter 312 or the combination of the second rectifier 321 and the second inverter 322 can make AC and DC power It can be used as a power supply with a load of 50%, which increases the adaptability of the UPS.
  • the first UPS includes a first rectifier, the input terminal of the first rectifier serves as the input terminal of the first UPS, and the output terminal of the first rectifier serves as the DC output terminal of the first UPS to output DC power to the load
  • the second UPS includes a second rectifier, the input terminal of the second rectifier serves as the input terminal of the second UPS, and the output terminal of the second rectifier serves as the DC output terminal of the second UPS to output DC power to the load. That is, when the power consumption type of the load is DC power, the first rectifier and the second rectifier can directly supply power to the load, so that when the power consumption type of the load is DC power, matching power supply can also be obtained from the first UPS and the second UPS, increasing The scope of application of UPS has been determined.
  • the first UPS 310 and the second UPS 320 also include an energy storage unit interface for external energy storage units.
  • the energy storage units can use lead storage batteries or other suitable energy storage devices.
  • a charge and discharge unit 34 is provided at the unit interface to control the charge and discharge state of the first energy storage unit 401 or the second energy storage unit 402.
  • the first energy storage unit 401 is electrically connected to the output of the first rectifier 311 through the energy storage unit interface.
  • the second energy storage unit 402 is electrically connected to the output terminal of the second rectifier 321 through the energy storage unit interface; in another implementation of this application, the first UPS 310 and the second UPS 320 It may include an energy storage unit, the first energy storage unit 401 is electrically connected to the output end of the first rectifier 311 through the charge and discharge unit 34, and the second energy storage unit 402 is electrically connected to the output end of the second rectifier 321 through the charge and discharge unit 34. Utilizing the first energy storage unit 401 and the second energy storage unit 402, the UPS redundant power supply device can convert the DC power of the first energy storage unit 401 into AC power for the load through the first inverter 312 when the first power supply is interrupted.
  • the first rectifier 311 can be a first bidirectional rectifier
  • the second rectifier 321 can be a second bidirectional rectifier
  • the first busbar 201 is electrically connected to the first energy storage unit 401 through the first bidirectional rectifier
  • the second busbar 202 The second bidirectional rectifier is electrically connected to the second energy storage unit 402, so that the first energy storage unit 401 and the second energy storage unit 402 provide power for the second output, so that the first UPS 310 can be interrupted when the first power supply 101 supplies power.
  • the first bidirectional rectifier When the first bidirectional rectifier is used, the DC power of the first energy storage unit 401 is converted into AC power to supply power to the load 50, and the second UPS 320 uses the second bidirectional rectifier to convert the second energy storage unit 401 into AC power when the second power supply 102 is interrupted. 40 of DC power is converted into AC power to supply power to the load 50, so that the first energy storage unit 401 and the second energy storage unit 402 can be used as a backup power supply for the first output, increasing the redundancy of power supply.
  • the first UPS 310 controls the switch 21 between the input end of the first bus 201 and the first power supply 101 to open.
  • the second UPS 320 controls the switch 21 between the input end of the second bus 202 and the second power supply 102 to be disconnected to prevent the UPS from reversing the direction of the power supply. The role of feeding power.
  • the capacity of the first power supply 101 is equal to the total capacity required by the load 50
  • the capacity of the second power supply 102 is also equal to the total capacity required by the load 50
  • a single power supply can supply the total capacity required by all loads 50 . capacity, the first power supply 101 and the second power supply 102 back up each other, increasing the redundancy of power supply.
  • the capacity of the first UPS 310 is equal to 1/2 times the total capacity required by the load 50
  • the capacity of the second UPS 320 is equal to 1/2 times the total capacity required by the load 50, relative to conventional dual loop redundancy.
  • the configuration capacity of the single-circuit UPS is no less than the total capacity required by the load. The embodiments of the present application can reduce the capacity configuration of the UPS and save equipment costs.
  • the present application provides a redundant power supply system, which includes any one of the UPS redundant power supply devices in the above first and second aspects, and uses the UPS redundant power supply device to provide corresponding loads with
  • specific implementation methods may refer to the above-mentioned embodiments of the first aspect and the second aspect.
  • the UPS redundant power supply system can achieve corresponding effects by utilizing the above-mentioned UPS redundant power supply device. That is, compared with the conventional dual-circuit redundant power supply UPS system, the configuration capacity of the single-circuit UPS is no less than the total required load. Capacity, the embodiments of this application can reduce the capacity configuration of UPS and save equipment costs.
  • the present application provides a UPS device, including a main circuit and a bypass circuit that are independent of each other, and the main circuit and the bypass circuit are used to conduct power supply to the load at the same time.
  • the first output and the second output of the UPS device can be selectively connected for output, or can be connected for output at the same time.
  • the first output and the second output are turned on at the same time, so that the power supply capacity of the main circuit of a UPS can be reduced to 1/2 times the total capacity required by the load, so the capacity configuration of the UPS can be reduced and equipment costs can be saved.
  • the output end of the main circuit is used as the first output
  • the output end of the bypass is used in parallel with the output end of the bypass of another UPS device as the second output, wherein at least one of the two bypasses is in conduction.
  • the first output and the second output are used in combination with the main output of the other UPS to provide redundant power to the load.
  • the first output, the second output and the main output of another UPS can be connected and powered at the same time, so that the power supply capacity of each UPS main circuit does not exceed 1/2 times the total capacity required by the load. Further, Increase power supply redundancy.
  • the present application provides a dual power switch, including a first input terminal, a second input terminal, and an output terminal, wherein the first input terminal is used to connect the busbar of the first UPS, and the second The input end is used to connect the busbar of the second UPS.
  • the output end of the main circuit of the first UPS is used as the first first output.
  • the output end of the main circuit of the second UPS is used as the second first output.
  • the dual power supply switch is used In order to conduct at least one of the first input terminal and the second input terminal to its output terminal, the output terminal of the dual power switch is used as the second output, and the first output and the second output of the first and second channels are The two combinations provide redundant power supply to the load.
  • the first output and the second output of the first and second channels can be turned on and supplied at the same time.
  • the power supply capacity of each UPS main circuit does not exceed 1/2 times the total capacity required by the load, which reduces the operating load of the main circuit, so the capacity configuration of the UPS can be reduced and equipment costs can be saved.
  • this application provides a redundant power supply control method, which is applied to a UPS controller in a redundant power supply system.
  • the UPS controller is mainly used to manage and configure UPS components such as rectifiers and charge and discharge units. And adjust the UPS working mode, etc.
  • the control circuit can control the on and off of the switch through the solenoid valve and linkage mechanism.
  • the UPS redundant power supply control method includes:
  • the UPS power supply system includes two groups of UPSs, and the main circuits of the two groups of UPSs are controlled to be turned on, and the main circuit output terminals of the two groups of UPSs are used as two first outputs respectively.
  • the UPSs can be according to the application.
  • the fourth aspect provides UPS equipment.
  • one of the two bypasses of the two groups of UPS is controlled to be turned on, so that the output ends of the bypasses of the two groups of UPS are connected in parallel as the second output, so that the second output and the two first outputs are both
  • the two combinations provide redundant power supply to the load.
  • the method of the embodiment of the present application can realize that the second output and the two first outputs are turned on and supplied at the same time, so that the power supply capacity of each UPS main circuit does not exceed 1/2 times the total capacity required by the load, reducing the main circuit operation load, so the capacity configuration of the UPS can be reduced and equipment costs can be saved.
  • the method also includes: obtaining the power-off signals of each of the two groups of UPSs. If it is determined that the input terminals of the two groups of UPSs are powered off according to the power-off signals, controlling the connection between the input terminals of the rectifiers of the UPSs and the busbar. For example, the switch between the UPS and the busbar is controlled to be disconnected to avoid backfeeding power to the external power supply; optionally, other switches between the UPS and the power supply can also be controlled to be disconnected.
  • each component/step described in the embodiments of this application can be split into more components/steps, or two or more components/steps or partial operations of components/steps can be combined into New components/steps to achieve the purpose of the embodiments of this application.

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Abstract

本申请实施例提供了一种冗余供电装置、系统、不间断电源设备、开关和控制方法。包括两组不间断电源设备，其中，每一组所述不间断电源设备包括相互独立的主路和旁路；所述两组不间断电源设备的两个主路的输出端作为两个第一输出；所述两组不间断电源设备的两个旁路的输出端并联作为第二输出，所述两个旁路中至少有一个旁路处于导通状态；所述第二输出和所述两个第一输出，两两组合用于向负载冗余供电。与现有的通过两路主路承担负载供电相比，本实施例中可以使用两路主路以及至少一个旁路来承担负载供电，增加了用于承担负载的旁路，从而可以将UPS容量进行减配，提高设备的利用率，降低成本。

Description

冗余供电装置、系统、不间断电源设备、开关和控制方法 技术领域
本申请涉及电源供电技术领域，更具体地，涉及一种冗余供电装置、系统、不间断电源设备、开关和控制方法。
背景技术
UPS(Uninterruptable Power System，不间断电源设备)是连接在关键设备负载与交流电源之间的冗余电源设备，用于在交流电源正常工作时给负载提供持续的供电，以及在交流电源供电中断的情况下，在预定时间内保证负载的稳定供电。为了保证供电可靠性，UPS包括三种输出模式：主路供电模式、旁路供电模式和储能单元供电模式，其中，主路和旁路通常是耦合并联来给负载供电，供电时，主路和旁路中一路导通另一路中断。
为了更大的冗余度，实际应用中会将多个UPS并联并采用备用冗余的方式运行，例如将两组UPS独立输出构成双回路供电，两组UPS采用相互冗余备份的方式运行，正常供电(相对于发生故障和检修而言)时两组UPS中主路导通、旁路断开，两组UPS的主路带动全部负载，旁路长期留作备用，且两组UPS主路或旁路中任一路便可满足全部负载所需容量。例如，对于数据中心等高可用性供电系统，若向负载输出最大为N容量，那么UPS的供电冗余系统设计通常采用双冗余的2N供电方式给负载供电，同时2N的UPS输入电源还会额外配置母线联络。
但是，通过上述方式进行供电时，由于其中UPS主路或旁路中任一路都要满足全部负载所需容量，所以UPS需要配置较多冗余容量，系统设计的冗余成本较高。
发明内容
有鉴于此，本申请实施例提供一种冗余供电装置、系统、不间断电源设备、开关和控制方法，以至少部分解决上述问题。
根据本申请实施例的第一方面，提供了一种冗余供电装置，包括两组不间断电源设备，其中，每一组所述不间断电源设备包括相互独立的主路和旁路；所述两组不间断电源设备的两个主路的输出端作为两个第一输出；所述两组不间断电源设备的两个旁路的输出端并联作为第二输出，所述两个旁路中至少有一个旁路处于导通状态；所述第二输出和所述两个第一输出，两两组合用于向负载冗余供电。
根据本申请实施例的第二方面，提供了另一种冗余供电装置，包括：第一电源和第二电源、第一母线和第二母线、第一不间断电源设备和第二不间断电源设备、双电源切换开关；所述第一电源通过所述第一母线连接至所述第一不间断电源设备，所述第一不 间断电源设备的输出端作为第一路第一输出；所述第二电源通过所述第二母线连接至所述第二不间断电源设备，所述第二不间断电源设备的输出端作为第二路第一输出；所述第一电源通过所述第一母线连接至双电源切换开关的第一输入端，所述第二电源通过所述第二母线连接至所述双电源切换开关的第二输入端，所述双电源切换开关用于将所述第一输入端和所述第二输入端中的至少一个导通至其输出端，所述双电源切换开关的所述输出端作为第二输出；所述第一路第一输出和所述第二路第一输出、所述第二输出，两两组合用于向负载冗余供电。
根据本申请实施例的第三方面，提供了一种冗余供电系统，所述冗余供电系统包括上述任意一项所述的冗余供电装置。
根据本申请实施例的第四方面，提供了一种不间断电源设备，包括：相互独立的主路和旁路，所述主路和所述旁路用于同时导通向负载供电。
根据本申请实施例的第五方面，提供了一种双电源切换开关，包括：第一输入端、第二输入端、输出端，所述第一输入端用于连接第一不间断电源设备的母线，所述第二输入端用于连接第二不间断电源设备的母线，所述第一不间断电源设备的主路的输出端作为第一路第一输出，所述第二不间断电源设备的主路的输出端作为第二路第一输出；所述双电源切换开关用于将所述第一输入端和所述第二输入端中的至少一个导通至其输出端，所述双电源切换开关的所述输出端作为第二输出；所述第一路和第二路第一输出、所述第二输出，两两组合用于向负载冗余供电。
根据本申请实施例的第六方面，提供了一种冗余供电控制方法，应用于冗余供电系统中不间断电源设备的控制器，包括：控制两组不间断电源设备的两个主路导通，以将所述两个主路的输出端作为两个第一输出；控制所述两组不间断电源设备的两个旁路中的至少一路导通，以将所述两个旁路的输出端并联作为第二输出，使得所述第二输出和所述两个第一输出，两两组合用于向负载冗余供电。
本申请实施例中，将两组UPS的主路的输出端分别作为两个第一输出，两组UPS的旁路并联作为第二输出，正常供电时第二输出和两个第一输出同时导通，两两组合向负载供电，保证能够向负载提供足够的电量。通过将两组UPS的主路作为两个第一输出，旁路并联作为第二输出，在正常供电时至少第一输出和第二输出一同进行供电而不会使所有旁路均处于断开备用的状态，与现有的通过两路主路承担负载供电相比，本实施例中可以使用两路主路以及至少一个旁路来承担负载供电，增加了用于承担负载的旁路，从而可以将UPS容量进行减配，提高设备的利用率，降低成本。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请实施例中记载的一些实施例，对于本领域普通技术人员来讲，还可以根据这些附图获得其他的附图。
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请实施例中记载的一些实施例，对于本领域普通技术人员来讲，还可以根据这些附图获得其他的附图。
图1为根据本申请实施例的一种UPS冗余供电装置的结构示意图；
图2为根据本申请实施例的另一种UPS冗余供电装置的结构示意图；
图3为现有本申请实施例的一种取消母联开关的UPS冗余供电装置的示意图；
图4为根据本申请实施例的一种包括UPS组的UPS冗余供电装置的示意图；
图5为根据本申请实施例的一种包括双电源切换开关的UPS冗余供电装置的结构示意图；
图6为根据本申请实施例的另一种包括双电源切换开关的UPS冗余供电装置的结构示意图；
图7为根据本申请实施例的一种取消UPS旁路的UPS冗余供电装置的示意图；
图8为根据本申请实施例的一种UPS冗余供电控制方法的流程示意图。
具体实施方式
为了使本领域的人员更好地理解本申请实施例中的技术方案，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本申请实施例一部分实施例，而不是全部的实施例。基于本申请实施例中的实施例，本领域普通技术人员所获得的所有其他实施例，都应当属于本申请实施例保护的范围。
为了解决现有的通过双回路冗余UPS系统供电时，UPS系统需要配置较多冗余容量，系统设计的冗余成本较高的问题，参照图1，本申请提供了一种冗余供电装置，包括两组UPS，其中每组UPS包括相互独立的主路、旁路。
主路用于持续为负载供电，主路可以为整流器和逆变器串联而成的电路，整流器的输入端作为主路的输入端，整流器的输出端与逆变器的输入端相连，逆变器的输出端作为主路的交流输出端，或者，主路可以只包括整流器，整流器的输入端作为主路的输入端，整流器的输出端作为主路的直流输出端。可选地，主路还可以包括其他适配的装置，例如配电柜等。
旁路用于与另一UPS的旁路的输出端并联作为一个单独的输出(即第二输出)，旁路可以为包括静态开关的电路，可选地，静态开关可替换为其它合适的开关，并且旁路还可以包括其他适配的装置，例如配电柜等。
一般情况下，UPS的主路和旁路输出耦合，且UPS的主路和旁路采取一路导通、另一路断开的方式进行供电。正常供电时主路导通、旁路断开作为备用，在检修或主路发 生故障时，旁路导通、主路断开进行检修或维修，而UPS绝大部分时间处于正常供电状态，所以存在两组UPS的主路长期带动全部负载、其旁路长期处于备用，且两组UPS主路供电容量均满足负载容量的情况，造成冗余容量较多、成本较高的问题。
本实施例中，主路的通断和旁路的通断相互独立，相互独立是指主路和旁路的输出不耦合，若将主路作为第一输出，旁路并联作为第二输出，主路的通断不会影响第二输出的输出状态，旁路的通断不会影响第一输出的输出状态。
本申请实施例中，将两组UPS的主路的输出端分别作为两个第一输出，两组UPS的旁路并联作为第二输出，正常供电时第二输出和两个第一输出同时导通，两两组合向负载供电，保证能够向负载提供足够的电量。通过将两组UPS的主路作为两个第一输出，旁路并联作为第二输出，在正常供电时至少第一输出和第二输出一同进行供电而不会使所有旁路均处于断开备用的状态，与现有的通过两路主路承担负载供电相比，本实施例中可以使用两路主路以及至少一个旁路来承担负载供电，增加了用于承担负载的旁路，从而可以将UPS容量进行减配，提高设备的利用率，降低成本。
下面通过一种具体的实现方式，对本实施例提供的UPS冗余供电装置进行示例性说明。需要说明的是，本申请实施例中仅以两组UPS并联为例对上述UPS冗余供电装置进行示例性说明，但并不作为本申请的限定。
如图2所示，UPS冗余供电装置包括两组UPS，UPS包括相互独立的主路和旁路，其中，两组UPS的主路的输出端分别作为两个第一输出；两组UPS的旁路的输出端并联作为第二输出，至少有一个旁路处于导通状态。与三路输出(两个第一输出以及一个第二输出)相对应，负载的个数为三的倍数，其中，每个负载包括两个输入端，并且每个负载可包括多个用电设备，各负载所需最大供电容量相等。
在本申请实施例中，如图2所示，UPS冗余供电装置可以为三个负载50供电，UPS冗余供电装置的第二输出和两个第一输出两两组合分别接入各负载50的两个输入端，给负载50冗余供电。具体地，正常供电时，并联作为第二输出的两路UPS旁路中的一路导通另一路断开，导通的旁路为第二输出供电，此时第二输出和两个第一输出同时导通供电，使得各组UPS的主路供电容量不超过负载所需的总容量的1/2倍，可以将该组UPS容量减配为负载50所需的总容量的1/2倍，节约设备成本，且在正常供电时第一输出和第二输出一同进行供电而不会使所有旁路均处于断开备用的状态，增加了UPS利用率。
可选地，本申请任意实施例中，UPS一般通过母线与电源连接，并可以在母线之间设置用于控制两个输入电源10进线端的导通和两个进线端的母线20之间的导通的母联切换装置22，用于切换供电的电源。如图2所示，母联切换装置22中可以包括三个开关，分别为两个输入电源10进线开关221和222，以及母线联络开关223，采用三选二导通的开关控制逻辑，其目的是实现当221或222的输出故障时，通过闭合223将两个母线20连通，使得两个母线20均有电力输出。母联切换装置22可以采用自动转换开关电器(Automatic Transfer Switching Equipment,ATS)或其他合适的开关电器。
在本申请实施例中，两组UPS的输入端分别连接至各自对应的电源10，各电源10 的容量等于所述负载50所需总容量，所以单独一个电源10就可以供应所有负载50所需总容量，两组UPS对应的电源10互为备份，增加了供电的冗余度。另外，在图2和图3中，每组UPS的容量等于所述负载50所需总容量的1/2倍，相对于常规的双回路冗余供电的UPS总配置容量为不低于负载50所需总容量的2倍，可降低UPS的容量配置，节约成本。
作为一种可能的实施方式，参见图2、图3，UPS的主路可以包括整流器和逆变器，整流器的输入端作为主路的输入端，逆变器的输出端作为主路的交流输出端。整流器用于把交流电转换成直流电，整流器可以为单向工作的单向整流器或双向工作的双向整流器。逆变器用于把直流电转换成定频定压或调频调压交流电(一般为单相220V或3相380V,50Hz正弦波)。本实施例中，整流器的输出端连接逆变器的输入端，输入UPS的交流电通过整流器转化为直流电，然后通过逆变器转化为交流电为负载供电。
在图2、图3中，主路包括串联的整流器31和逆变器32，整流器31的输入端作为主路的输入端，逆变器32的输出端作为所述主路的输出端，通过整流器31和逆变器32组合可以使得交流电和直流电都能作为负载50的电源，增加了UPS的适应性。具体地，电源为交流电时，电流从整流器31的输入端进行输入，逆变器32的输出端进行输出；电源为直流电时，电流可以从逆变器32的输入端进行输入，同时从逆变器32的输出端进行输出。
在可能的实施方式中，主路包括整流器，整流器的输入端作为主路的输入端，整流器的输出端作为主路的直流输出端，向负载输出直流电，即当负载的用电类型为直流电时，可由整流器直接向负载供电，使得负载的用电类型是直流时也可从UPS获得相匹配的供电，增加了UPS的适用范围。
本申请实施例中，旁路包括静态开关，静态开关是一种无触点开关，一般由两个可控硅反向并联组成，其闭合和断开由逻辑控制器控制，可通过静态开关控制旁路的开断。参照图3，利用UPS的旁路静态开关33，可仅导通输出端并联的两个旁路的中一个为第二输出供电，此时即可实现第二输出的供电来源在这两个旁路之间切换，正常供电时两个旁路的供电分别来自两组UPS的电源10，所以利用旁路静态开关33可以实现第二输出的供电来源在两组UPS的电源10之间切换，而母线联络开关223的主要作用就是实现两个外部输入电源10的供电切换，所以可以取消母线联络开关223，降低成本。另外，对于输出端并联的两路UPS旁路，两个旁路中的一路断开另一路导通，或者两个旁路同时导通，可以采用一路导通且一路断开的方式供电，也可以采用两个旁路同时导通的方式供电，从而使得UPS的供电方式更加多样化，以适应各种突发情况。
在可能的实施方式中，以图2所示的UPS冗余供电装置为例，在左侧电源10的供电中断时，控制输出端并联的两个旁路的静态开关33导通，右侧电源10可通过并联的旁路向左侧UPS进行供电，实现两个电源的相互备份，增加供电的冗余度。需要注意的是，为了防止电流通过UPS流向母线20，当电源10供电中断时应控制UPS输入端与母线20之间的开关21断开。
本申请任意实施例中，UPS还包括储能单元或可以通过预留的储能单元接口外接储能单元，储能单元作为UPS的备用电源，其可以为化学储能装置，例如铅蓄电池，也可以是其他合适的储能装置，如飞轮。
在本申请实施例的一种实现方式中，UPS还包括储能单元接口，用于外接储能单元40，储能单元接口通过充放电单元34电连接至所述整流器31的输出端，充放电单元34是根据供电状况控制储能单元40进行充电或放电的设备；可选地，在本申请实施例的另一种实现方式中，UPS本身可以包括储能单元40，储能单元40通过充放电单元34电连接至整流器31输出端。
利用储能单元40，UPS冗余供电装置可以在其电源10中断时，根据负载50的用电类型，通过逆变器32将储能单元40的直流电转变为交流电为负载50供电，或者直接输出直流电为负载50供电，使得储能单元40作为备用电源，增加供电的冗余度。
进一步地，本实施例中，主路的整流器31可以为双向整流器，双向整流器正向工作时与单向整流器作用相同，双向整流器逆向工作时，相当于一个逆变器，可将直流电转化为相应的交流电，此模式为双向整流器的逆变模式。两组UPS各自的旁路通过双向整流器与各自电连接的储能单元40电连接，使得UPS可以在电源10供电中断时通过双向整流器，将储能单元40的直流电转变为交流电向负载50供电，从而使储能单元40作为备用电源为第二输出供电，增加供电的冗余度。
在可能的实施方式中，当UPS的整流器31处于逆变模式为第二输出供电时，UPS控制整流器31输入端与母线20之间的开关21断开，以起到防止UPS向电源10反向馈电的作用；可选地，UPS也可以控制整流器31输入端与电源20之间的其它开关断开。
下面以每个负载50的所需容量是500kVA为例，对各种情况下每组UPS的供电容量进行详细说明：
如图2或图3所示，两个电源10的容量为1500kVA。
正常供电时，输出端并联作为第二输出的两路UPS旁路，一路导通且另一路断开，当左侧UPS的旁路静态开关33导通、右侧UPS的旁路静态开关33断开时，左侧UPS主路供电容量为500kVA，左侧UPS的旁路供电容量为500kVA，右侧UPS主路供电容量为500kVA。
当一组UPS的电源10供电中断时，参照图2，左侧的电源10中断，右侧UPS的母线20可通过母联切换装置22向左侧UPS母线20进行供电，此时UPS旁路仍保持正常供电时一路导通且另一路断开的状态进行供电。
当一组UPS发生故障不能供电时，例如图2或图3中右侧的UPS发生故障时，左侧UPS的主路和旁路的供电容量均为750kVA，左侧UPS旁路为第二输出供电，即输出端并联的两个旁路中仅有左侧旁路导通。与右侧UPS对应的第一输出相连的两个负载50此时分别由与其连接的第二输出或左侧UPS对应的第一输出单独供电，供电容量为500kVA，另一个负载50的供电方式不变。
当两组UPS的电源10输入都发生中断时，两组UPS电连接的储能单元40作为电源 提供直流电，直流电经充放电单元34输入到整流器31和逆变器32之间的导线上，通过逆变器32转化为适用的交流电为负载50供电。
当整流器31为单向整流器31时，直流电仅能通过逆变器32转化为适用的交流电，从逆变器32的输出端输出为负载50供电，即仅有第一输出进行供电，第二输出无法供电，输出端并联的两个旁路导通与否对供电没有影响。此时，两个第一输出的供电容量都是750kVA，与第二输出相连的两个负载50此时分别由与其连接的第一输出单独供电，供电容量为500kVA，另一个负载50的供电方式不变。
当整流器31为双向整流器时，直流电还可以通过双向整流器转化为适用的交流电，从双向整流器的原输入端端输出为负载50供电，即第二输出可以与第一输出同时供电。输出端并联作为第二输出的两个旁路中一路导通、另一路断开时，主路和旁路的供电容量均与正常供电的情况相同，但旁路导通的左侧UPS的储能单元40及其充放电单元34的容量需要达到1000kVA，否则会造成过载。进一步地，可将输出端并联的两个旁路同时导通，此时两组UPS的储能单元40及其充放电单元34的容量达到750kVA即可，每个旁路的供电容量为250kVA，其组成的第二输出的容量为500kVA。
可选地，在本申请任意实施例中，UPS冗余供电装置中的各组UPS还可以包括若干个UPS，其中，若干个UPS的主路并联作为该组UPS的主路，若干个UPS的旁路并联作为该组UPS的旁路。如图4所示，每组UPS包括并联的两个UPS，在每组UPS中，各UPS的主路并联作为该组UPS的主路、各UPS的旁路并联作为该组UPS的旁路，可以在UPS容量不足时采用多个UPS并联的方式获得更大的容量。
本申请实施例提供的UPS冗余供电装置，两组UPS的输入端分别连接至各自对应的电源10，每个电源10的容量等于所述负载50所需总容量，所以单独一个电源10就可以供应所有负载50所需总容量，两组UPS对应的电源10互为备份，增加了供电的冗余度。另外，每组UPS的容量等于所述负载50所需总容量的1/2倍，相对于常规的容量为不低于负载50所需总容量的UPS，可降低UPS的容量配置，节约设备成本；通过并联的旁路的通断组合，使得UPS的供电方式更加多样化，以适应各种突发情况，增加供电的冗余度，并且通过并联的旁路，可以减少连接在母线之间的母线联络开关223，节约成本；通过整流器31和逆变器32结合可以使得交流电和直流电都能作为负载50的电源，增加了UPS的适应性；通过储能单元和单向整流器的结合，使储能单元40作为第一输出的备用电源，通过储能单元和双向整流器的结合，使储能单元40作为第一输出和第二输出的备用电源，可以在UPS输入电源发生中断时继续维持供电，保证负载正常运行。
根据本申请的第二方面，本申请提供了又一种冗余供电装置，参照图5，与上述实施例不同的是，本实施例中采用双电源切换开关60。
一般情况下，双回路供电的UPS装置采用2N冗余的方式运行，并且处于工作中的UPS中主路导通、旁路断开，所以存在两组UPS的主路长期带动全部负载、且两组UPS主路供电容量均满足负载容量的情况，造成冗余容量较多、成本较高的问题。
本实施例中，UPS冗余供电装置包括：第一电源和第二电源、第一母线和第二母线、第一UPS和第二UPS、双电源切换开关60。
第一UPS的输出端作为第一路第一输出，第二UPS的输出端作为第二路第一输出，第一电源通过第一母线连接至双电源切换开关的第一输入端，第二电源通过第二母线连接至双电源切换开关的第二输入端，双电源切换开关用于将第一输入端和第二输入端中的至少一个导通至其输出端，双电源切换开关的输出端作为第二输出。具体地，以每个负载所需容量是N/3为例，可以使双电源切换开关的第一输入端和第二输入端中的一个导通、另一个断开，例如第一输入端导通、第二输入端断开，此时第一UPS的主路和旁路的输出容量均是N/3；也可以使双电源切换开关的第一输入端和第二输入端同时导通，此时第一UPS和第二UPS的主路的输出容量为N/3，旁路的输出容量为N/6。需要注意的是，对于下面整流器为双向整流器的情况，当第一电源和第二电源的供电同时中断时，若采用例如第一输入端导通、第二输入端断开的方式供电，那么第一储能单元及其充放电单元的容量需要达到2N/3，否则会造成过载，所以这种情况下应优先选择第一输入端和第二输入端同时导通的方式供电，此时第一储能单元、第二储能单元及各充放电单元的容量还是仅需为N/2。
双电源切换开关用于因故停电时从断电的电源自动切换到另外一个电源，本实施例中双电源切换开关可以为本申请第五方面提供的双电源切换开关，也可以是其它合适的ATS和STS(Static Transfer Switch，静态转换开关)等开关。
本实施例中，第一UPS的输出端作为第一路第一输出、第二UPS的输出端作为第二路第一输出，双电源切换开关的输出端作为第二输出，正常供电时第一路第一输出、第二路第一输出和第二输出同时导通用于向负载冗余供电，保证能够向负载提供足够的电量。通过第一UPS的输出端作为第一路第一输出、第二UPS的输出端作为第二路第一输出，双电源切换开关作为第二输出，在正常供电时第二输出和两路第一输出一同进行供电而不会使所有旁路均处于断开备用的状态，可以将UPS容量进行减配，提高了设备的利用率，降低成本。
参见图6，示例性地示出了一种UPS冗余供电装置的结构，并具体示出了第一UPS、第二UPS和双电源切换开关的结构。
本实施例中，UPS冗余供电装置包括：第一电源101和第二电源102、第一母线201和第二母线202、第一UPS 310和第二UPS 320、双电源切换开关60。
在本实施例中，双电源切换开关可以为STS，左侧的电源10为第一电源101，右侧的电源10为第二电源102，左侧的母线20为第一母线201，右侧的母线20为第二母线202，左侧的UPS为第一UPS 310，右侧的UPS为第二UPS 320。
在本申请实施例中，第一电源101通过第一母线201连接至第一UPS 310，第一UPS 310的输出端作为第一路第一输出，第二电源102通过第二母线202连接至第二UPS 320，第二UPS 320的输出端作为第二路第一输出。第一电源101通过第一母线201连接至双电源切换开关60的第一输入端，第二电源102通过第二母线202连接至双电源切换开关 60的第二输入端，双电源切换开关60用于将第一输入端和第二输入端中的至少一个导通至其输出端，双电源切换开关的输出端作为第二输出；第一路第一输出、第二路第一输出和第二输出两两组合用于向负载50冗余供电，各输出和负载50的配置可参照本申请第一方面的实施例，利用三路输出(两路第一输出、一路第二输出)向负载进行冗余供电，使得各UPS主路的供电容量不超过负载50所需的总容量的1/2倍，可以将UPS容量减配为负载50所需的总容量的1/2倍，节约设备成本。如图7，作为一种可行的实施例，由于利用双电源切换开关60可在第一UPS 310和第二UPS 320之间构成了第二输出，可将UPS的旁路取消，由第二输出替代旁路进行冗余供电。
在本申请实施例中，第一UPS 310包括串联的第一整流器311和第一逆变器312，第一整流器311的输入端作为第一UPS 310的输入端，第一逆变器312的输出端作为第一UPS 310的交流输出端，并且，第二UPS 320也可以包括串联的第二整流器321和第二逆变器322，第二整流器321的输入端作为所述第二UPS 320的输入端，第二逆变器322的输出端作为第二UPS 320的交流输出端，通过第一整流器311和逆变器312组合或第二整流器321和第二逆变器322组合可以使得交流电和直流电都能作为负载50的电源，增加了UPS的适应性。
在可能的实施方式中，第一UPS包括第一整流器，第一整流器的输入端作为第一UPS的输入端，第一整流器的输出端作为第一UPS的直流输出端，向负载输出直流电，并且第二UPS包括第二整流器，第二整流器的输入端作为第二UPS的输入端，第二整流器的输出端作为第二UPS的直流输出端，向负载输出直流电。即当负载的用电类型为直流电时，可由第一整流器和第二整流器直接向负载供电，使得负载的用电类型是直流时也可从第一UPS和第二UPS获得相匹配的供电，增加了UPS的适用范围。
在本申请的一种实现方式中，第一UPS 310和第二UPS 320还包括储能单元接口，用于外接储能单元，储能单元可以采用铅蓄电池或者其它合适的储能装置，储能单元接口处设置有充放电单元34用来控制第一储能单元401或第二储能单元402的充放电状态，第一储能单元401通过储能单元接口电连接至第一整流器311的输出端，和/或，第二储能单元402通过储能单元接口电连接至所述第二整流器321的输出端；在本申请的另一种实现方式中，第一UPS 310和第二UPS 320本身可以包括储能单元，第一储能单元401通过充放电单元34电连接至第一整流器311输出端，第二储能单元402通过充放电单元34电连接至第二整流器321输出端。利用第一储能单元401和第二储能单元402，UPS冗余供电装置可以在第一电源供电中断时，通过第一逆变器312将第一储能单元401的直流电转变为交流电为负载50供电，或者直接输出直流电为负载50供电；在第二电源供电中断时，通过第二逆变器322将第二储能单元402的直流电转变为交流电为负载50供电，或者直接输出直流电为负载50供电。使得第一储能单元401和第二储能单元402可以作为第一输出的备用电源，增加供电的冗余度。
进一步地，第一整流器311可以为第一双向整流器，第二整流器321为第二双向整流器为双向整流器，第一母线201通过第一双向整流器与第一储能单元401电连接，第 二母线202通过第二双向整流器与第二储能单元402电连接，以使第一储能单元401和第二储能单元402为第二输出的供电，可以使得第一UPS 310在第一电源101供电中断时通过第一双向整流器，将第一储能单元401的直流电转变为交流电向负载50供电，并且，第二UPS 320在第二电源102供电中断时通过第二双向整流器，将第二储能单元40的直流电转变为交流电向负载50供电，从而使得第一储能单元401和第二储能单元402可以作为第一输出的备用电源，增加供电的冗余度。
在可能的实施方式中，当第一储能单元401通过第一整流器为第二输出供电时，第一UPS 310控制第一母线201输入端与第一电源101之间的开关21断开，当第二储能单元402通过第二整流器321为第二输出供电时，第二UPS 320控制第二母线202输入端与第二电源102之间的开关21断开，以起到防止UPS向电源反向馈电的作用。在本申请实施例中，第一电源101的容量等于负载50所需总容量，并且第二电源102的容量也等于负载50所需总容量，所以单独一个电源就可以供应所有负载50所需总容量，第一电源101和第二电源102互为备份，增加了供电的冗余度。另外，第一UPS 310的容量等于负载50所需总容量的1/2倍，并且第二UPS 320的容量等于所述负载50所需总容量的1/2倍，相对于常规双回路冗余供电的UPS系统中，单回路UPS的配置容量为不低于负载所需总容量，本申请实施例可降低UPS的容量配置，节约设备成本。
根据本申请的第三方面，本申请提供了一种冗余供电系统，其包括上述第一方面、第二方面中的任意一种UPS冗余供电装置，利用UPS冗余供电装置为相应的负载供电，具体实施方式可参照上述第一方面、第二方面的实施例。UPS冗余供电系统通过利用上述UPS冗余供电装置，可取得其相应的效果，即，相对于常规双回路冗余供电的UPS系统中，单回路UPS的配置容量为不低于负载所需总容量，本申请实施例可降低UPS的容量配置，节约设备成本。
根据本申请的第四方面，本申请提供了一种UPS设备，包括相互独立的主路和旁路，所述主路和所述旁路用于同时导通向负载供电。在本申请实施例中，UPS设备的第一输出和第二输出可以择一导通输出，也可以同时导通输出。第一输出和第二输出同时导通输出使得一台UPS主路的供电容量可以减小为负载所需的总容量的1/2倍，所以可以降低UPS的容量配置，节约设备成本。
进一步地，主路的输出端作为第一输出，旁路的输出端用于与另一UPS设备的旁路的输出端并联作为第二输出，其中，两个旁路中至少有一路处于导通状态，第一输出和第二输出用于与所述另一UPS的主路输出两两组合向负载冗余供电，具体实施方式可参照本申请第一方面的实施例。利用此UPS设备，可实现第一输出、第二输出与另一UPS的主路输出同时导通供电，使得各UPS主路的供电容量不超过负载所需的总容量的1/2倍，进一步增加供电的冗余度。
根据本申请的第五方面，本申请提供了一种双电源切换开关，包括第一输入端、第二输入端、输出端，其中，第一输入端用于连接第一UPS的母线，第二输入端用于连接第二UPS的母线，第一UPS的主路的输出端作为第一路第一输出，第二UPS的主路的输出端作为第二路第一输出，双电源切换开关用于将第一输入端和第二输入端中的至少一个导通至其输出端，双电源切换开关的输出端作为第二输出，第一路和第二路第一输出、第二输出，两两组合向负载冗余供电，具体实施方式可参照本申请第二方面的实施例，利用此双电源切换开关，可实现第一路和第二路第一输出、第二输出同时导通供电，使得各UPS主路的供电容量不超过负载所需的总容量的1/2倍，减小了主路运行的负荷，所以可以降低UPS的容量配置，节约设备成本。
根据本申请的第六方面，本申请提供了一种冗余供电控制方法，应用于冗余供电系统中UPS的控制器，UPS控制器主要用于管理和配置如整流器、充放电单元等UPS组件和调整UPS工作模式等，其中的控制电路通过电磁阀及联动机构可控制开关的通断。
参照图8，UPS冗余供电控制方法包括：
S801、控制两组UPS的两个主路导通，以将所述两个主路的输出端作为两个第一输出。
在本申请实施例中，UPS供电系统包括两组UPS，控制两组UPS的主路导通，将两组UPS的主路输出端分别作为两个第一输出，其中，UPS可以是根据本申请第四方面提供的UPS设备。
S802、控制所述两组UPS的两个旁路中的至少一路导通，以将所述两个旁路的输出端并联作为第二输出，使得所述第二输出和所述两个第一输出，两两组合用于向负载冗余供电。
在本申请实施例中，控制两组UPS的两个旁路中的一路导通，以将两组UPS的旁路的输出端并联作为第二输出，使得第二输出、两个第一输出两两组合向负载冗余供电，具体实施方式可参照本申请第一方面的实施例。
本申请实施例的方法可实现第二输出、两个第一输出同时导通供电，使得各UPS主路的供电容量不超过负载所需的总容量的1/2倍，减小了主路运行的负荷，所以可以降低UPS的容量配置，节约设备成本。
进一步地，本申请实施例中，方法还包括：获得两组UPS各自的断电信号，若根据断电信号确定两组UPS的输入端断电，则控制UPS的整流器的输入端与母线之间的开关断开，例如控制UPS与母线之间的开关断开，以避免向外部的电源反向馈电；可选地，也可以控制UPS与电源之间的其它开关断开。控制两组UPS的旁路导通，使得两组UPS各自的旁路通过整流器与各自电连接的储能单元电连接，将储能单元作为所述第二输出的供电电源，增加UPS供电系统的冗余度。需要说明的是，本申请实施例不限定上述步骤与步骤S801-S802之间的时序关系，上述步骤可与步骤S801-S802并行执行，或者按照预设的顺序执行，这些均在本申请的保护范围内。
需要指出，根据实施的需要，可将本申请实施例中描述的各个部件/步骤拆分为更多部件/步骤，也可将两个或多个部件/步骤或者部件/步骤的部分操作组合成新的部件/步骤，以实现本申请实施例的目的。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及方法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请实施例的范围。
以上实施方式仅用于说明本申请实施例，而并非对本申请实施例的限制，有关技术领域的普通技术人员，在不脱离本申请实施例的精神和范围的情况下，还可以做出各种变化和变型，因此所有等同的技术方案也属于本申请实施例的范畴，本申请实施例的专利保护范围应由权利要求限定。

Claims (20)

  1. 一种冗余供电装置，包括两组不间断电源设备，其中，每一组所述不间断电源设备包括相互独立的主路和旁路；
    所述两组不间断电源设备的两个主路的输出端作为两个第一输出；
    所述两组不间断电源设备的两个旁路的输出端并联作为第二输出，所述两个旁路中至少有一个旁路处于导通状态；
    所述第二输出和所述两个第一输出，两两组合用于向负载冗余供电。
  2. 根据权利要求1所述的冗余供电装置，其中，所述主路包括整流器，所述整流器的输入端作为所述主路的输入端，所述整流器的输出端作为所述主路的直流输出端；
    或者，所述主路包括串联的整流器和逆变器，所述整流器的输入端作为所述主路的输入端，所述逆变器的输出端作为所述主路的交流输出端。
  3. 根据权利要求2所述的冗余供电装置，其中，所述不间断电源设备还包括：储能单元，所述储能单元电连接至所述整流器输出端；
    或者，所述不间断电源设备还包括：储能单元接口，用于外接储能单元，所述储能单元接口电连接至所述整流器的输出端。
  4. 根据权利要求3所述的冗余供电装置，其中，当所述不间断电源设备令所述储能单元通过所述整流器向所述第二输出供电时，所述不间断电源设备控制所述整流器输入端与电源之间的开关断开。
  5. 根据权利要求1-4中任一项所述的冗余供电装置，其中，所述两个旁路中的一路断开另一路导通；或者，所述两个旁路同时导通。
  6. 根据权利要求1所述的冗余供电装置，其中，所述两组不间断电源设备的输入端分别连接至各自对应的电源，各所述电源的容量大于或等于所述负载所需总容量。
  7. 根据权利要求1所述的冗余供电装置，其中，每组不间断电源设备的容量大于或等于所述负载所需容量的1/2倍。
  8. 根据权利要求1所述的冗余供电装置，其中，一组不间断电源设备包括若干个不间断电源设备，所述若干个不间断电源设备的主路并联作为该组不间断电源设备的主路，所述若干个不间断电源设备的旁路并联作为该组不间断电源设备的旁路。
  9. 一种冗余供电装置，其中，所述冗余供电装置包括：第一电源和第二电源、第一 母线和第二母线、第一不间断电源设备和第二不间断电源设备、双电源切换开关；
    所述第一电源通过所述第一母线连接至所述第一不间断电源设备，所述第一不间断电源设备的输出端作为第一路第一输出；
    所述第二电源通过所述第二母线连接至所述第二不间断电源设备，所述第二不间断电源设备的输出端作为第二路第一输出；
    所述第一电源通过所述第一母线连接至双电源切换开关的第一输入端，所述第二电源通过所述第二母线连接至所述双电源切换开关的第二输入端，所述双电源切换开关用于将所述第一输入端和所述第二输入端中的至少一个导通至其输出端，所述双电源切换开关的所述输出端作为第二输出；
    所述第一路第一输出和所述第二路第一输出、所述第二输出，两两组合用于向负载冗余供电。
  10. 根据权利要求9所述的冗余供电装置，其中，所述第一不间断电源设备包括第一整流器，所述第一整流器的输入端作为所述第一不间断电源设备的输入端，所述第一整流器的输出端作为所述第一不间断电源设备的直流输出端；和/或，所述第二不间断电源设备包括第二整流器，所述第二整流器的输入端作为所述第二不间断电源设备的输入端，所述第二整流器的输出端作为所述第二不间断电源设备的直流输出端；
    或者，所述第一不间断电源设备包括串联的第一整流器和第一逆变器，所述第一整流器的输入端作为所述第一不间断电源设备的输入端，所述第一逆变器的输出端作为所述第一不间断电源设备的交流输出端；和/或，所述第二不间断电源设备包括串联的第二整流器和第二逆变器，所述第二整流器的输入端作为所述第二不间断电源设备的输入端，所述第二逆变器的输出端作为所述第二不间断电源设备的交流输出端。
  11. 根据权利要求10所述的冗余供电装置，其中，所述第一不间断电源设备和/或所述第二不间断电源设备还包括：储能单元，第一储能单元电连接至所述第一整流器输出端，和/或，第二储能单元电连接至所述第二整流器输出端；
    或者，所述第一不间断电源设备和/或所述第二不间断电源设备还包括：储能单元接口，用于外接所述储能单元，所述第一储能单元通过所述储能单元接口电连接至所述第一整流器的输出端，和/或，第二储能单元通过所述储能单元接口电连接至所述第二整流器的输出端。
  12. 根据权利要求11所述的冗余供电装置，其中，当所述第一不间断电源设备令所述第一储能单元通过所述第一整流器向所述第二输出供电时，所述第一不间断电源设备控制所述第一母线输入端与所述第一电源之间的开关断开；
    或者，当所述第二不间断电源设备令所述第二储能单元通过所述第二整流器向所述第二输出供电时，所述第二不间断电源设备控制所述第二母线与所述第二电源之间输入 端的开关断开。
  13. 根据权利要求9所述的冗余供电装置，其中，所述第一电源的容量大于或等于负载所需总容量，和/或，所述第二电源的容量大于或等于负载所需总容量。
  14. 根据权利要求9所述的冗余供电装置，其中，所述第一不间断电源设备的容量大于或等于负载所需总容量的1/2倍，和/或，所述第二不间断电源设备的容量大于或等于所述负载所需总容量的1/2倍。
  15. 一种冗余供电系统，其中，所述冗余供电系统包括权利要求1-14中任意一项所述的冗余供电装置。
  16. 一种不间断电源设备，其中，所述不间断电源设备包括相互独立的主路和旁路，所述主路和所述旁路用于同时导通向负载供电。
  17. 根据权利要求16所述的不间断电源设备，其中，所述主路的输出端作为第一输出，所述旁路的输出端用于与另一所述不间断电源设备的所述旁路的输出端并联作为第二输出，其中，两个所述旁路中至少有一路处于导通状态，所述第一输出和所述第二输出用于与所述另一不间断电源设备的主路输出两两组合向负载冗余供电。
  18. 一种双电源切换开关，其中，所述双电源切换开关包括第一输入端、第二输入端、输出端，
    所述第一输入端用于连接第一不间断电源设备的母线，所述第二输入端用于连接第二不间断电源设备的母线，所述第一不间断电源设备的主路的输出端作为第一路第一输出，所述第二不间断电源设备的主路的输出端作为第二路第一输出；
    所述双电源切换开关用于将所述第一输入端和所述第二输入端中的至少一个导通至其输出端，所述双电源切换开关的所述输出端作为第二输出；
    所述第一路和第二路第一输出、所述第二输出，两两组合用于向负载冗余供电。
  19. 一种冗余供电控制方法，应用于冗余供电系统中不间断电源设备的控制器，包括：
    控制两组不间断电源设备的两个主路导通，以将所述两个主路的输出端作为两个第一输出；
    控制所述两组不间断电源设备的两个旁路中的至少一路导通，以将所述两个旁路的输出端并联作为第二输出，使得所述第二输出和所述两个第一输出，两两组合用于向负载冗余供电。
  20. 根据权利要求19所述的控制方法，其中，所述方法还包括：
    获得所述两组不间断电源设备各自的断电信号；
    若根据所述断电信号确定所述两组不间断电源设备的输入端断电，则控制所述不间断电源设备的整流器的输入端与电源之间的开关断开，并且控制所述两个旁路导通，使得所述两组不间断电源设备各自的所述旁路通过整流器与各自电连接的储能单元电连接，使所述储能单元为所述第二输出供电。
PCT/CN2022/118093 2022-09-09 2022-09-09 冗余供电装置、系统、不间断电源设备、开关和控制方法 WO2024050812A1 (zh)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009232520A (ja) * 2008-03-19 2009-10-08 Nec Commun Syst Ltd マルチ電源装置、該装置に用いられる電力供給方法、及び電力供給制御プログラム
CN101710728A (zh) * 2009-11-06 2010-05-19 中兴通讯股份有限公司 一种通信机房机架设备的供电方法及装置
JP2013059152A (ja) * 2011-09-07 2013-03-28 Toshiba Mitsubishi-Electric Industrial System Corp 個別バイパス方式並列無停電電源システム
CN103904726A (zh) * 2012-12-27 2014-07-02 通用电气公司 用于不间断电源中的公共冗余旁路馈送路径的系统
JP2017050933A (ja) * 2015-08-31 2017-03-09 東芝三菱電機産業システム株式会社 無停電電源システム

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009095071A (ja) * 2007-10-03 2009-04-30 Tdk-Lambda Corp 無停電電源装置
CN205160199U (zh) * 2015-12-01 2016-04-13 中国电建集团成都勘测设计研究院有限公司 互为静态旁路的交流不间断电源系统
CN208028651U (zh) * 2018-02-06 2018-10-30 深圳妈湾电力有限公司 一种双主机并机冗余控制系统
CN209948781U (zh) * 2019-06-04 2020-01-14 漳州科华技术有限责任公司 一种不间断电源

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009232520A (ja) * 2008-03-19 2009-10-08 Nec Commun Syst Ltd マルチ電源装置、該装置に用いられる電力供給方法、及び電力供給制御プログラム
CN101710728A (zh) * 2009-11-06 2010-05-19 中兴通讯股份有限公司 一种通信机房机架设备的供电方法及装置
JP2013059152A (ja) * 2011-09-07 2013-03-28 Toshiba Mitsubishi-Electric Industrial System Corp 個別バイパス方式並列無停電電源システム
CN103904726A (zh) * 2012-12-27 2014-07-02 通用电气公司 用于不间断电源中的公共冗余旁路馈送路径的系统
JP2017050933A (ja) * 2015-08-31 2017-03-09 東芝三菱電機産業システム株式会社 無停電電源システム

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