CN112542830B - Power supply system - Google Patents
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- CN112542830B CN112542830B CN201910895271.0A CN201910895271A CN112542830B CN 112542830 B CN112542830 B CN 112542830B CN 201910895271 A CN201910895271 A CN 201910895271A CN 112542830 B CN112542830 B CN 112542830B
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
Abstract
The embodiment of the application discloses a power supply system. The power supply system includes: the power supply system comprises N power supply modules, wherein the output end of each power supply module is connected with one power supply bus, the power supply buses connected with different power supply modules are different, and N is a positive integer greater than or equal to 4; n load modules, wherein each load module includes: the N-1 power supply branches are used for carrying out distributed power supply on the load; the input end of one power supply branch is connected with two power supply buses; one of the two power supply buses connected with different power supply branches in one load module is different; one path of the load is connected with the output ends of the two power supply branches; at least one of the two power supply branches connected with different paths of loads in the load module is different.
Description
Technical Field
The application relates to the technical field of power supply, in particular to a power supply system.
Background
In order to reduce the power failure of the external power supply of the power supply system, backup processing is performed on the power supply of the power supply system. Two backup modes are proposed in the related art:
mode one:
referring to the power supply system shown in fig. 1, comprising: the input of uninterruptible power supply (Uninterrupted Power Supply, UPS) UPS 1 to UPS 3 has only one power source, there is no second power source, and the reliability of the distributed redundant backup power supply system is not high.
Referring to the power supply system shown in fig. 2, in addition to the UPS 1 to UPS 4 that directly supply power to the load, a UPS R with dedicated redundancy backup is also provided, but when the UPS 1 to UPS 4 work normally, the load ratio of the UPS R is zero, and the whole power supply module such as a transformer connected to the UPS R is unloaded, so that the equipment efficiency is low.
Also included in fig. 1 and 2 are switching devices and power distribution units (Power Distribution Unit, PDU). The switching device may include: static change-over switches (Static Transfer Switch, STS) or automatic change-over switches (Automatic Transfer Switch, ATS), etc.
Disclosure of Invention
In view of this, it is desirable for embodiments of the present application to provide an electrical system.
The technical scheme of the application is realized as follows:
the embodiment of the application provides a power supply system, which comprises:
the power supply system comprises N power supply modules, wherein the output end of each power supply module is connected with one power supply bus, the power supply buses connected with different power supply modules are different, and N is a positive integer greater than or equal to 4;
n load modules, wherein each load module includes: the N-1 power supply branches are used for carrying out distributed power supply on the load;
the input end of one power supply branch is connected with two power supply buses; one of the two power supply buses connected with different power supply branches in one load module is different; one path of the load is connected with the output ends of the two power supply branches; at least one of the two power supply branches connected with different paths of loads in the load module is different.
Based on the scheme, a first type Uninterrupted Power Supply (UPS) is arranged on each power supply branch;
the input end of the first UPS is connected with the two power supply buses;
and the output end of the first UPS is connected with the two paths of power supply loads.
Based on the scheme, different power supply branches in the mth load module are connected to the mth power supply bus;
the power supply system further includes: n second class UPS;
and the first end and the second end of the m-th UPS are connected to the m-th power supply bus, wherein m is a positive integer less than or equal to N.
Based on the scheme, the output end of the power supply module is connected with a third type UPS;
and the output end of the third type UPS is connected to one power supply bus.
Based on the scheme, each path of power supply branch is provided with a static change-over switch;
the two input ends of the static change-over switch are respectively connected with the two power supply buses;
and the output ends of the static change-over switches are respectively connected with the two paths of power supply loads of the same load module.
Based on the scheme, an automatic change-over switch and high-voltage direct current power supply equipment connected in series with the automatic change-over switch are arranged on each power supply branch;
the two input ends of the automatic change-over switch are respectively connected with the two power supply buses;
the output end of the automatic change-over switch is connected with the high-voltage direct-current power supply equipment;
and the output end of the high-voltage direct-current power supply equipment is connected with the load with two paths of power supply.
Based on the above scheme, the power supply module includes: automatic change-over switch and generator;
the automatic change-over switch comprises two input ends and an output end;
one input end of the automatic change-over switch is used for being connected with a mains supply system, and the other input end of the automatic change-over switch is connected with the generator;
the output end of the automatic change-over switch is connected to one power supply bus or directly connected to one power supply bus through a UPS.
Based on the above scheme, the load includes: IT loads and/or dual power supply loads.
Based on the scheme, each power supply branch is further provided with a power distribution assembly;
the power distribution assembly is used for providing power supply distribution for two paths of loads connected with the power supply branch circuit.
Based on the above scheme, each power supply branch comprises a main input end and a standby input end, and the standby input ends of different power supply branches in the same load module are connected with different power supply buses; and the main input ends of different power supply branches in one load module are connected with the same power supply bus;
and when the power supply of the main input end is normal, the standby input end is in a non-power supply state.
According to the power supply system provided by the embodiment of the application, N power supply modules can use N-1 power supply branches to carry out distributed redundant power supply on the load module, meanwhile, each power supply module has certain residual power supply capacity, the residual power supply capacity is connected to other power supply modules through the power supply branches forming power supply buses, redundant backup can be achieved, and accordingly each power supply branch of the first aspect has redundancy of power supply of different backup buses, and power supply continuity is guaranteed. In the second aspect, each power supply module is directly connected to the power supply branch for supplying power, so that even if no abnormality exists in one power supply module, the load carrying rate of each power supply module is not zero, and the operation efficiency of the power supply module is improved. In the third aspect, the residual power of each power supply bus can be used as a public backup bus of other power supply buses, so that the distributed design of the public backup buses is realized, the probability of failure of the plurality of power supply buses is very small, and the safety and reliability of the power supply system are improved again.
Drawings
Fig. 1 is a schematic structural diagram of a power supply system in the related art;
fig. 2 is a schematic structural diagram of another power supply system in the related art;
fig. 3 is a flow chart of a control method of a power supply system according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a power supply system according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of a power supply system according to an embodiment of the present application;
fig. 6 is a schematic diagram of a connection structure of a second type UPS according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of a power supply system according to an embodiment of the present application;
fig. 8 is a schematic structural diagram of a power supply system according to an embodiment of the present application.
Detailed Description
The technical scheme of the application is further elaborated below with reference to the drawings in the specification and the specific embodiments.
As shown in fig. 3, the present embodiment provides a power supply system including:
the power supply system comprises N power supply modules, wherein the output end of each power supply module is connected with one power supply bus, the power supply buses connected with different power supply modules are different, and N is a positive integer greater than or equal to 4;
n load modules, wherein each load module includes: the N-1 power supply branches and the load carry out distributed power supply;
the input end of one power supply branch is connected with two power supply buses; one of the two power supply buses connected with different power supply branches in one load module is different; one path of the load is connected with the output ends of the two power supply branches; at least one of the two power supply branches connected with different paths of loads in the load module is different.
In some embodiments, the remaining one of the power supply modules is connected to any one of the power supply branches of the remaining load modules as a common backup power supply bus as a backup power supply branch.
The power supply system provided by the embodiment of the application can be applied to power supply of the data center, is a power supply system of the data center, and is not limited to power supply of the data center. In this embodiment of the present application, N power supply modules may be disposed in parallel in the power supply system.
In the power supply system shown in fig. 3, N is 4, and in a specific implementation, the value of N may be any positive integer greater than 4, for example, the value of N may be 5 or 6.
The power supply structure of each power supply module may be the same, or one or more of the power supply parameters may be the same. The power supply parameters may include: maximum output power, maximum output current, maximum output voltage, average output power, average output current, rated output power, rated output voltage, and rated output current.
When the structures of the power supply modules are the same and the power supply parameters are the same, the normal operation of the power supply system is convenient to maintain.
In this embodiment, one load module includes N-1 power supply branches, and one power supply branch is connected to one load.
The rated output power of the single power supply module is larger than the average power required by one load module. Therefore, each power supply module can be provided with surplus power except for supplying power to the power supply module normally, and the surplus power is transmitted to the power supply bus as well, so that redundant backup of power supply is realized, and the continuity of power supply is ensured. Meanwhile, each power supply module is connected to at least four power supply branches, so that each power supply module is in a power supply state, the situation that the load rate of the power supply module is zero cannot exist, and the application efficiency of the whole power supply system is ensured relative to a power supply system comprising the power supply modules with pure redundancy backup.
In this embodiment of the present application, N load modules are connected in parallel to the output end of the power supply system.
In some embodiments, a first type of uninterruptible power supply UPS is provided on each of the power supply branches;
the input end of the first UPS is connected with the two power supply buses;
and the output end of the first UPS is connected with the two paths of power supply loads.
The UPS can stably output alternating current to an alternating current load, simultaneously charge a part of input alternating current to the backup energy storage equipment, and directly input stored electric energy to a direct current load or convert the stored electric energy into alternating current and then output the alternating current load when no alternating current is input subsequently. In a word, the UPS can store the residual electric quantity through the storage battery in the UPS, and continuously supplies power to the load under the condition of short-time power failure.
In some embodiments, one of the power supply branches is connected to one of the first type of UPS.
Fig. 4 is a schematic diagram of a power supply system in which a load module includes a UPS of a first type.
In some embodiments, different power supply branches in the nth load module are connected to the nth power supply bus; the power supply module connected with the nth power supply bus is a main power supply module of the nth load module; n is a positive integer less than or equal to N;
the input end of the first UPS of the nth load module includes:
the input end of the main path is connected with the main power supply module of the nth load module;
the input end of the bypass is connected with the other power supply bus except the nth power supply bus;
and the output end is connected with the load of the two paths of power supply of the nth load module.
In some embodiments, different power supply branches in the mth load module are connected to the mth power supply bus; the power supply system further includes: n second class UPS;
and the first end and the second end of the m-th UPS are connected to the m-th power supply bus, wherein m is a positive integer less than or equal to N.
In this embodiment, the first type UPS and the second type UPS are both UPSs.
In the power supply system, the mth load module comprises a second type UPS whose output forms a common backup bus and is connected to any UPS static bypass of the rest load modules in series cold backup mode
However, unlike the first type of UPS, both the main and static bypass inputs of the first type of UPS are connected to a power bus that is not protected by the UPS. Therefore, when a main circuit of one UPS in the load module fails, and meanwhile, when the mains supply is abnormal, the second type UPS can be continuously switched to the static bypass power supply after the discharge of the battery is finished, the power of the static bypass is output from the public bus of the upper UPS, and the static bypass power supply is protected by the upstream UPS. Therefore, the introduction of the second type UPS enables the power supply system to be more stable, and the uninterrupted power supply is further improved.
Fig. 5 is a schematic diagram of a power supply system including a second type UPS.
Fig. 6 provides an internal connection structure of the second UPS, where two UPSs are connected in series backup, that is, the output of the upstream UPS forms a common backup bus, and then connects to the static bypass input of the other UPS.
In some embodiments, an output of the power module is connected to a third UPS;
and the output end of the third type UPS is connected to one power supply bus.
The third type of UPS belongs to the UPS like the first type of UPS and the second type of UPS, but the third type of UPS is connected to the rear end of the power supply module and is positioned in front of the load module.
Therefore, the N-1 power supply branches of one power supply module share one third type UPS, the number of the UPSs and the hardware cost of the UPS system are reduced, and meanwhile, the power supply continuity is ensured due to the introduction of the third type UPSs.
Fig. 7 is a schematic diagram of a power supply system including a third type of UPS.
In some embodiments, a static change-over switch STS is arranged on each power supply branch;
the two input ends of the static change-over switch STS are respectively connected with the two power supply buses;
and the output ends of the static change-over switch STS are respectively connected with two paths of loads of the same load module.
The STS is an electronic change-over switch, and can automatically switch the input end when one input fails.
In some embodiments, an automatic transfer switch ATS and a high-voltage direct current power supply device connected in series with the automatic transfer switch ATS are arranged on each power supply branch;
the two input ends of the automatic transfer switch ATS are respectively connected with the two power supply buses; the output end of the automatic transfer switch ATS is connected with the high-voltage direct-current power supply equipment; and the output end of the high-voltage direct-current power supply equipment is connected with two paths of loads.
The high-voltage direct current power supply device is a rectifying device capable of converting alternating current into direct current, the output direct current voltage value can be between 100 and 380V, and the specific direct current voltage value can be determined according to an acceptable input voltage range of a load.
Therefore, the high-voltage direct current power supply equipment is adopted to replace an alternating current UPS, and the load application scene that high-voltage direct current power supply is required to be used is met.
In some embodiments, the power module includes: automatic change-over switch ATS and generator;
the automatic transfer switch ATS comprises two input ends and an output end;
one input end of the automatic change-over switch is used for being connected with a mains supply system, and the other input end of the automatic change-over switch is connected with the generator; the input end connected with the mains supply system is used for inputting mains supply; and the input end is connected with the generator and is used for inputting power supply of the generator. When the mains supply is normal, the mains supply can be used for supplying power, and when the mains supply is abnormal, the generator generates power to maintain the continuous power supply of the power supply module.
The output end of the automatic transfer switch ATS is connected to one power supply bus or directly connected to one power supply bus through a UPS.
The output end of the power supply module can be directly connected with the power supply bus or connected into the power supply bus through the UPS.
In some embodiments, the load comprises: IT loads and/or dual power supply loads.
In some embodiments, each of the power supply branches is further provided with a power distribution assembly;
the power distribution assembly is used for providing power distribution for two paths of power supply loads connected with the power supply branch circuits.
The power distribution assembly can comprise a power distribution cabinet, the power distribution cabinet can distribute power, power is supplied and output according to power supply required by loads, and power supply efficiency is improved.
In some embodiments, each power supply branch includes a main input terminal and a standby input terminal, and the standby input terminals of different power supply branches in the same load module are connected with different power supply buses; and the main input ends of different power supply branches in one load module are connected with the same power supply bus. In this way, the standby input ends of the power supply branches in the same load module are connected to other different power supply buses, which is equivalent to the situation that the main input faults occur, the standby power supply buses are connected to supply power, and the main input ends of the power supply branches in the same load module are connected to the same power supply module. Under the condition of main circuit fault, the standby circuit of the power supply branch circuit of the load module is connected to different buses, and the situation that more than two circuits of anomalies occur on different buses simultaneously is extremely small, so that the phenomenon of power supply interruption of a single load module is reduced.
In other embodiments, each of the power supply branches includes a primary input and a backup input, the primary inputs of different power supply branches in the same load module being connected to different power supply buses; and the standby input ends of different power supply branches in one load module are connected with the same power supply bus. At this time, the main input ends of the power supply branches of one load module are connected to different power supply modules, so that when one power supply module is abnormal, the phenomenon that the power supply of the main input ends is interrupted in the corresponding load module in the whole power supply system is avoided.
The specific connection manner of the main input end and the standby input end of each power supply branch in the power supply system is set according to the application scenario, and is not limited herein.
When the power supply of the main input end is normal, the standby input end is in a non-power supply state, no line loss exists on a power supply line, and unnecessary power supply expenditure is reduced.
Several specific examples are provided below in connection with any of the embodiments described above:
example 1:
compared with a distributed redundant (Distributed Redundant, DR) power supply system, the power supply system combined with a public backup (Reserve Redundant) ensures that each power supply loop of the load has the double-circuit power supply redundancy characteristic, and improves the reliability of power supply.
Compared with a public backup redundancy design, the system has no independent public redundancy power supply module, and each power supply module has public redundancy, so that the equipment of each power supply module is loaded, and the efficiency of the key power supply, the cable, the transformer and other equipment is higher.
The distributed public backup buses are used for supplying power, so that the backup power supply loops of each distributed redundant DR power supply module come from different power supply modules, and the backup reliability is improved.
The present example power supply system diagram may be as shown in fig. 4. The load of the power supply system provided by the present example may be an IT load. The power supply of the IT load is configured as a dual power supply. The power supply module shown in fig. 4 is composed of a mains supply, an ATS and a backup generator through a transformer. Wherein, the ATS output is configured with a plurality of sets of UPS to form a distributed redundancy (Distributed Redundant) mode. In fig. 4, there are 4 power supply modules, and each of the 4 power supply modules includes ATS, numbered ATS1, ATS2, ATS3, and ATS4. The UPS connected with the rear end of each power supply module corresponds to the first type UPS, and the serial numbers are respectively: UPS 1, UPS 2, UPS 3, and UPS 4. The power supply branch is provided with STS, and the serial numbers are respectively: STS 1A, STS 1B, STS C; STS 2A, STS 2B, STS C; STS 3A, STS 3B, STS C; STS 4A, STS 4B, STS C. The power supply branch where STS 1A, STS 1B, STS C is located belongs to a load module. The power supply branch where STS 2A, STS 2B, STS C is located belongs to a load module. The power supply branch where STS 3A, STS 3B, STS C is located belongs to a load module. The power supply branch where STS 4A, STS 4B, STS C is located belongs to a load module.
As shown in FIG. 4, the distributed redundancy ratio is 3N/2, that is, 3 UPS sets form a pairwise cross distributed power supply to IT loads, redundant power of the power supply modules forms a common backup bus, and any UPS bypass of the rest power supply modules is supplied with power. Therefore, in the embodiment of the application, if there are N power supply modules, there are N common backup buses, and compared with a single common backup bus, the bypass power supply of each UPS in the power supply module has the phenomenon of low failure rate.
It can be seen that the UPS's under each group of power modules are distributed redundant, with the main path of each UPS coming from the corresponding power module and the bypass inputs coming from different common backup buses, respectively. Taking the power supply module of ATS1 as an example, the main and bypass power sources of UPSs 1A to 1C are shown in table 1.
TABLE 1
| Power supply module ATS1 output | Power source of UPS main circuit | UPS static bypass power source |
| UPS 1A | ATS1 output | ATS2 output |
| UPS 1B | ATS1 output | ATS3 output |
| UPS 1C | ATS1 output | ATS4 output |
If compared to distributed redundancy (fig. 1), it can be seen that there are two switchable loop choices upstream of each supply loop of the load, and that the loop of the backup choice is different.
When the power supply system is used, the configuration of the capacity and the number of the devices has the following characteristics:
there are N sets of power supply modules, and 4 sets of power supply modules are shown in fig. 4. Each power supply module consists of a transformer, a generator and an ATS. The generator can be a low-voltage generator or a medium-voltage generator and other various types of generators capable of generating electricity.
N-1 independent stand-alone UPS is configured below each power supply module to form the framework of DR power supply system, and meanwhile, redundant power can form the public backup bus of other power supply buses.
And the static bypass of the UPS under each set of power supply module is respectively connected with the public backup buses of the rest N-1 power supply modules.
Compared with a DR power supply system, the power supply system combines a public backup mode, so that each power supply loop of the load has the double-circuit power supply redundancy characteristic.
And the backup power supply loop of each distributed redundant DR power supply module is powered by a distributed public backup bus and is from different power supplies.
Example 2:
under the power supply module composed of each set of ATS and the commercial power and generator, a distributed redundancy (Distributed Redundant) mode is formed by a plurality of sets of UPS, as shown in figure 5, wherein one set of UPS forms a common backup bus to supply power to the UPS of the other power supply modules.
The power supply structure of the power supply system has the following characteristics:
there are N sets of power supply modules, as in fig. 5, 4 sets of modules (transformer, low voltage generator, ATS).
N independent stand-alone UPS sets are configured below each set of power supply module, wherein N-1 UPS sets form a distributed redundant DR framework, and the rest is used as a public backup UPS to output a public backup bus; this may increase the reliability of the common backup.
And the UPS bypass under each set of power supply module is respectively connected with the public backup buses of the rest N-1 power supply modules to form a serial cold backup mode.
The power supply system shown in fig. 5 can improve the reliability of UPS bypass power supply with respect to DR power supply systems.
In fig. 5, there are 4 power supply modules, and each of the 4 power supply modules includes ATS, numbered ATS1, ATS2, ATS3, and ATS4. STS is arranged on each power supply branch, and the serial numbers are respectively: USP 1A, USP 1B, USP C; USP 2A, USP 2B, USP C; USP 3A, USP 3B, USP C; USP 4A, USP 4B, USP 4C. The power supply branch where USP 1A, USP 1B, USP C is located belongs to a load module. The power supply branch where USP 2A, USP 2B, USP C is located belongs to a load module. The power supply branch where USP 3A, USP 3B, USP C is located belongs to a load module. The power supply branch where USP 4A, USP 4B, USP C is located belongs to a load module.
Example 3:
under the power supply module composed of each set of ATS, commercial power and generator, 1 set of UPS and N-1 set of STS form distributed redundancy, as shown in figure 7, the redundancy ratio of the power supply system is 3N/2, and the residual UPS power forms a common backup bus to supply power to STSs of other power supply modules. The 4 power supply modules comprise ATS, and the ATS1, the ATS2, the ATS3 and the ATS4 are respectively numbered. The UPS connected with the rear end of each power supply module corresponds to the first type UPS, and the serial numbers are respectively: UPS 1, UPS 2, UPS 3, and UPS 4.
STS are arranged on the power supply branch, and the STS are respectively numbered as follows: STS 1A, STS 1B, STS C; STS 2A, STS 2B, STS C; STS 3A, STS 3B, STS C; STS 4A, STS 4B, STS C.
The power supply branch where STS 1A, STS 1B, STS C is located belongs to a load module. The power supply branch where STS 2A, STS 2B, STS C is located belongs to a load module. The power supply branch where STS 3A, STS 3B, STS C is located belongs to a load module. The power supply branch where STS 4A, STS 4B, STS C is located belongs to a load module.
The structure of the power supply system has the following characteristics:
there are N sets of power supply modules, and the power supply system has 4 sets of modules as shown in fig. 7. The power supply module comprises a transformer, a low-voltage generator and an ATS.
Under each power supply module set, 1 UPS is configured, and the UPS can be a large-scale stand-alone UPS or a modularized UPS. One UPS can output the power with N-1 STSs to form a distributed redundant DR framework, and the remained UPS power can be used as a public backup bus of other power supply buses and is respectively connected with the public backup buses of other N-1 power supply modules.
The power supply system provided by the example uses a large UPS, and the UPS and the power supply module are in one-to-one relation, so that the power supply stability can be further improved due to the addition of the STS.
Example 4:
in some application scenarios of IT loads requiring dc input, high voltage dc (High Voltage Direct Current, HVDC) devices are used instead of ac UPS, and the high voltage dc devices do not have a static bypass of UPS and are not suitable for ac STS. Under each power supply module, a plurality of sets of high-voltage direct-current HVDC equipment form distributed redundancy, the redundancy ratio is 3N/2 as shown in figure 8, and redundant power forms a public backup bus to supply power to the HVDC equipment of the other power supply modules.
As shown in fig. 8, the structure of the power supply system has the following characteristics:
there are N sets of power supply modules, as shown in fig. 8, 4 sets of power supply modules, including: transformer, low voltage generator and ATS.
N-1 independent high-voltage direct current HVDC and input ATS are configured below each power supply module, wherein N-1 sets form a distributed redundant DR framework (direct current power supply) and redundant power at the same time form a public backup bus (alternating current power supply).
The input ATS of each set of HVDC equipment is connected with the corresponding power supply module by the main circuit, and the backup circuit is connected with other public backup buses.
In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above described device embodiments are only illustrative, e.g. the division of the units is only one logical function division, and there may be other divisions in practice, such as: multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. In addition, the various components shown or discussed may be coupled or directly coupled or communicatively coupled to each other via some interface, whether indirectly coupled or communicatively coupled to devices or units, whether electrically, mechanically, or otherwise.
The units described as separate units may or may not be physically separate, and units displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units; some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in each embodiment of the present application may be integrated in one processing module, or each unit may be separately used as one unit, or two or more units may be integrated in one unit; the integrated units may be implemented in hardware or in hardware plus software functional units.
Those of ordinary skill in the art will appreciate that: all or part of the steps for implementing the above method embodiments may be implemented by hardware associated with program instructions, where the foregoing program may be stored in a computer readable storage medium, and when executed, the program performs steps including the above method embodiments; and the aforementioned storage medium includes: a mobile storage device, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk or an optical disk, or the like, which can store program codes.
The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (8)
1. A power supply system, comprising:
the power supply system comprises N power supply modules, wherein the output end of each power supply module is connected with one power supply bus, the power supply buses connected with different power supply modules are different, and N is a positive integer greater than or equal to 4;
each load module comprises N-1 power supply branches for carrying out distributed power supply on loads;
the input end of one power supply branch is connected with two power supply buses; one of the two power supply buses connected with different power supply branches in one load module is different; one path of the load is connected with the output ends of the two power supply branches; at least one of the two power supply branches connected with different paths of loads in one load module is different; a first Uninterrupted Power Supply (UPS) is arranged on each power supply branch, the input end of the UPS is connected with two power supply buses, and the output end of the UPS is connected with two power supply loads;
the load module comprises a load module, a first type UPS and a second type UPS, wherein different power supply branches in the load module are connected to the m-th power supply bus, and a first end and a second end of the m-th type UPS are connected to the m-th power supply bus, wherein m is a positive integer smaller than or equal to N.
2. The power supply system of claim 1, wherein an output of the power supply module is connected to a third type of UPS;
and the output end of the third type UPS is connected to one power supply bus.
3. The power supply system of claim 2, wherein the power supply system comprises a power supply system,
each power supply branch is provided with a static change-over switch;
the two input ends of the static change-over switch are respectively connected with the two power supply buses;
and the output ends of the static change-over switches are respectively connected with the two paths of power supply loads of the same load module.
4. The power supply system according to claim 1, wherein each of the power supply branches is provided with an automatic change-over switch and a high-voltage direct-current power supply device connected in series with the automatic change-over switch;
the two input ends of the automatic change-over switch are respectively connected with the two power supply buses;
the output end of the automatic change-over switch is connected with the high-voltage direct-current power supply equipment;
and the output end of the high-voltage direct-current power supply equipment is connected with two paths of loads.
5. The power supply system according to any one of claims 1 to 4, wherein the power supply module includes: automatic change-over switch and generator;
the automatic change-over switch comprises two input ends and an output end;
one input end of the automatic change-over switch is used for being connected with a mains supply system, and the other input end of the automatic change-over switch is connected with the generator;
the output end of the automatic change-over switch is connected to one power supply bus or directly connected to one power supply bus through a UPS.
6. The power supply system according to any one of claims 1 to 4, wherein the load comprises: IT loads and/or dual power supply loads.
7. The power supply system according to any one of claims 1 to 4, wherein each of the power supply branches is further provided with a power distribution assembly;
the power distribution assembly is used for providing power supply distribution for two paths of loads connected with the power supply branch circuit.
8. The power supply system according to claim 1 to 4, wherein,
each power supply branch comprises a main input end and a standby input end, and the standby input ends of different power supply branches in the same load module are connected with different power supply buses; and the main input ends of different power supply branches in one load module are connected with the same power supply bus, wherein when the power supply of the main input ends is normal, the standby input ends are in a non-power supply state.
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| CN113726000A (en) * | 2021-09-02 | 2021-11-30 | 北京百度网讯科技有限公司 | Power supply apparatus and power supply method thereof |
| CN114285296A (en) * | 2021-11-12 | 2022-04-05 | 中车永济电机有限公司 | Novel integrated power supply and auxiliary transmission system |
| CN114337313A (en) * | 2021-11-12 | 2022-04-12 | 中车永济电机有限公司 | Integrated power supply and multi-channel auxiliary transmission system |
| WO2024016225A1 (en) * | 2022-07-20 | 2024-01-25 | 航霈科技(深圳)有限公司 | Redundant power system capable of multi-loop power supply and power distribution device |
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