CN114374258A - Prefabricated power supply module, power supply control method and device and storage medium - Google Patents
Prefabricated power supply module, power supply control method and device and storage medium Download PDFInfo
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- CN114374258A CN114374258A CN202011105976.7A CN202011105976A CN114374258A CN 114374258 A CN114374258 A CN 114374258A CN 202011105976 A CN202011105976 A CN 202011105976A CN 114374258 A CN114374258 A CN 114374258A
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- 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
- H02J9/068—Electronic means for switching from one power supply to another power supply, e.g. to avoid parallel connection
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Abstract
The embodiment of the disclosure discloses a prefabricated power supply module, a power supply control method and device, and a storage medium: the prefabricated power supply module includes: an N +1 transformer, wherein the N +1 transformer comprises: n, a main transformer and 1 a standby transformer, wherein the standby transformer is connected to a common backup loop; the output of each primary transformer is provided with a primary UPS of M + 1; wherein, the outputs of the M +1 main UPS mutually form a distributed redundant backup; the interlocking switch circuit comprises interlocking switch circuits, wherein one interlocking switch circuit corresponds to a main UPS; a chain switching circuit comprising at least: the first switch is connected to the rear end of the corresponding main UPS; the second switch is connected to the public backup loop; an interlock switch circuit having a first switch state and a second switch state; in a first switch state, the first switch is closed and the second switch is open; in the second switching state, the first switch is open and the second switch is closed.
Description
Technical Field
The present disclosure relates to the field of power supply technologies, and in particular, to a prefabricated power supply module, a power supply control method and apparatus, and a storage medium.
Background
FIG. 1 is a schematic diagram of a distributed redundant power supply for an N +1 UPS. The standard distributed redundancy of the UPS with the distributed redundancy N +1 has the defect that the initial deployment needs to invest once by a plurality of sets of transformers and corresponding UPSs, and if the initial load capacity is small, the distributed redundancy investment is difficult to achieve flexibility. For example, 3 sets of transformers and UPSs are configured, when the actual initial load needs 1 full transformer, the initial investment of a Distributed redundancy (Distributed Redundant) system is high, in short, the UPS with Distributed redundancy N +1 has the disadvantage that the initial deployment needs to invest once by using multiple sets of transformers and corresponding UPSs, and if the initial load capacity is small, the Distributed redundancy investment is difficult to achieve flexibility.
Fig. 2 is a block diagram of a distributed redundant power supply module for a 2+1 UPS, switched to a 3+1 UPS. From the distributed redundancy of the 2+1 UPS of the previous example and the distributed redundancy of the UPS expanded to 3+1, the distribution combination distribution of the load can become 6 types, namely AB, AC, AD, BC, BD and CD. If the upgrade is to 4+1, there are 10 combinations. The design method has the defects that the complexity of load distribution combination during capacity expansion is improved more, and the design complexity and the operation difficulty are improved.
Fig. 2 shows another distributed Redundant power supply module, and the power supply module design of the UPS with N +1 is also a common Redundant (Block Redundant) system, which can solve the problem of staging deployment, but because a Static Transfer Switch (STS) is introduced, the overall power supply module cost is high.
Disclosure of Invention
The embodiment of the disclosure provides a prefabricated power supply module, a power supply control method and device and a storage medium.
The technical scheme of the disclosure is realized as follows:
a first aspect of the embodiments of the present disclosure provides a prefabricated power supply module, which includes:
an N +1 transformer, wherein the N +1 transformer comprises: n, a main transformer and 1 a standby transformer, wherein the standby transformer is connected to a common backup loop;
the main uninterrupted power supply UPS of N + 1; the N +1 primary UPS is respectively connected to the rear end of the N +1 transformer, and the outputs of the N +1 primary UPS form distributed redundant backup; the rear end of each main transformer is provided with a main uninterrupted power supply UPS of M + 1; wherein, the outputs of the M +1 main UPS mutually form a distributed redundant backup; one interlocking switch circuit corresponds to one main UPS;
one of the interlock switch circuits includes at least:
the first switch is connected to the rear end of the corresponding main UPS;
the second switch is connected to the public backup loop;
the interlock switch circuit has a first switch state and a second switch state; in the first switch state, the first switch is closed and the second switch is open; in the second switching state, the first switch is open and the second switch is closed.
Based on the above scheme, the power supply module of prefabricating still includes:
an external maintenance bypass located outside the primary UPS;
the external maintenance circuit is conducted when the main UPS is maintained and disconnected when the main UPS works normally.
Based on the scheme, the public backup loop is provided with M backup UPSs.
Based on the above scheme, the prefabricated power supply module further includes:
isolating the room;
wherein different transformers are located in different isolation compartments;
and/or
Different UPSs are located in different bays;
based on the scheme, the transformer and the UPS are located in different isolation rooms.
A second aspect of the embodiments of the present disclosure provides a power supply control method, which is applied to the prefabricated power supply module provided in any of the foregoing embodiments, where the method includes:
detecting whether the input of each main UPS is normal; when the input of the main UPS is normal, the control interlocking switch circuit is in a first switch state; when the input of the main UPS is abnormal, the main UPS enters a discharging mode and automatically discharges;
and if the input of the main UPS is abnormal, switching the interlocking switch circuit of the main UPS with the abnormal input to a second switch state.
Based on the above scheme, if there is an input abnormality of the main UPS, switching the interlock switch circuit of the main UPS with the input abnormality to a second switch state includes:
and if the input of the main UPS is abnormal and the abnormal duration reaches a first set duration, switching the interlock switch circuit of the main UPS to the second switch state if the input of the main UPS is abnormal.
Based on the above scheme, the method further comprises:
determining whether the input abnormality of the main UPS is eliminated;
determining whether the duration of the normal input of the main UPS after the exception is eliminated reaches a second set duration;
and if the input abnormality of the main UPS is eliminated and the duration of the normal state is maintained to reach the second set duration, the interlock switch circuit is switched to the first switch state.
Based on the above scheme, the method further comprises:
when the output of one main transformer is abnormal, the chain switch circuit at the rear end of the plurality of main UPSs under the abnormal main transformer is switched to the second switch state after waiting for different durations. .
A third aspect of the disclosed embodiments provides a computer storage medium having computer-executable instructions stored thereon; the computer instructions are executed by a processor, and the power supply control method provided by any technical scheme can be realized.
The prefabricated power supply module provided by the embodiment of the disclosure is configured with an N +1 transformer, wherein an N primary transformer and a N standby transformer; the standby transformer is connected to the public standby loop; in order to realize continuous power supply, the main UPS of the back end M of each main transformer does not introduce high-cost STS, but uses the first switch and the second switch contained in the interlocking switch circuit to realize interlocking switching, thereby simply and conveniently realizing low-cost continuous power supply.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
FIG. 1 is a schematic diagram of a power supply module;
FIG. 2 is a schematic diagram of a power supply module;
fig. 3 is a schematic structural diagram of a prefabricated power supply module according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a prefabricated power supply module according to an embodiment of the present disclosure;
fig. 5 is a schematic flow chart of a power supply control module according to an embodiment of the present disclosure;
fig. 6 is a schematic flow chart of a power supply control module according to an embodiment of the present disclosure;
fig. 7 is a schematic structural diagram of a prefabricated power supply module according to an embodiment of the present disclosure;
fig. 8 is a schematic diagram illustrating a transformer and a UPS isolated by isolation spaces according to an embodiment of the present application;
fig. 9 is a schematic structural diagram of a prefabricated power supply module according to an embodiment of the present application.
Detailed Description
The present disclosure will be described in further detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the disclosure and are not intended to limit the disclosure.
In the following description, suffixes such as "module", or "circuit" used to denote elements are used only for facilitating the explanation of the present disclosure, and have no specific meaning by themselves. Thus, "module" or "circuit" may be used mixedly.
As shown in fig. 3 and 4, an embodiment of the present disclosure provides a prefabricated power supply module, including:
an N +1 transformer, wherein the N +1 transformer comprises: n, a main transformer and 1 a standby transformer, wherein the standby transformer is connected to a common backup loop;
the main transformer is provided with a main uninterrupted power supply UPS of M + 1; wherein, the outputs of the M +1 main UPS mutually form a distributed redundant backup;
one interlocking switch circuit corresponds to one main UPS;
one of the interlock switch circuits includes at least:
the first switch is connected to the rear end of the corresponding main UPS;
the second switch is connected to the public backup loop;
the interlock switch circuit has a first switch state and a second switch state; in the first switch state, the first switch is closed and the second switch is open; in the second switching state, the first switch is open and the second switch is closed.
And N main transformers and 1 standby transformer in the N +1 transformers. 1 the primary transformer corresponds to a power supply module. And the standby transformer 1 is connected to the common backup loop and used for supplying power for the power supply module where the N main transformers are located and backing up. Any one of the N +1 transformers may be capable of providing a power capacity equal to the power capacity required by the connected load.
The power value that M UPS of M +1 UPS can provide may be equal to the total power capacity of a load connected to the back end of one primary transformer. Wherein 1 of the M +1 UPSs may be used to form a distributed redundant backup.
Referring to fig. 7, if there are 3 loads and 500kVA loads in any one load below one primary transformer, the load power capacity is 1500kVA, and the N +1 transformer indicates that, without considering the UPS efficiency and the transformer output distribution loss, the transformer is 1500kVA (N +1), that is, the power capacity of one primary transformer is 1500kVA, that is, the power that the primary transformer can provide is equal to the load power capacity required by the load connected to the rear end of the primary transformer. The load power is 1500kVA (500kVA × 3), and the UPS is configured with (2+1) × 750kVA, so it is M +1 UPS. The N +1 transformer adopted in the prefabricated power supply module provided in the embodiment of the present disclosure includes: n primary transformers and 1 backup transformer. And a main UPS of M +1 is connected behind each main transformer.
The interlocking switch circuit is arranged at the rear end of the main UPS, and has the characteristic of low cost.
In the embodiment of the present disclosure, the primary UPS is a UPS located on the primary path.
The outputs of the M +1 main UPSs can be mutually backed up to form distributed redundant backup, and the two paths of loads can be ensured to continuously supply power through the distributed redundant backup.
The transformer is used for converting the mains voltage into the voltage required by the load. For example, the transformer may step down the mains voltage and input the stepped down mains voltage to the voltage load, or step up the mains voltage and input the stepped down mains voltage to the high-voltage load.
The rear end of the UPS of M +1 is provided with an interlocking switch circuit with low manufacturing cost. The interlock switch circuit includes at least a first switch and a second switch.
Referring to fig. 3, the common backup loop is the RESERVE POWER BLOCK in fig. 3. POWER BLOCK-1 in fig. 3 is the main POWER supply module of the main path of the main UPS where the main transformer is located.
Fig. 4 is a schematic diagram of flexible expansion based on fig. 3, and it can be seen that flexible and simple expansion is achieved by using the prefabricated power supply module provided by the embodiment of the disclosure. FIG. 4 is an addition to FIG. 3 of Power BLOCK-2 through Power BLOCK-S. S can be any positive integer greater than or equal to 2.
The power supply module provided by the embodiment of the disclosure is a prefabricated power supply module, and can be preset for a manufacturer, and a purchaser can directly purchase and install the power supply module.
In the embodiment of the present disclosure, the load to which the prefabricated power supply module is connected may be various types of loads. In some embodiments, the load may be an IT load. For example, such a prefabricated power supply module may be applied to a data center for supplying power to servers of the data center.
The power module provided by the embodiment of the disclosure is a prefabricated power module, and can be called as a prefabricated power module for short.
In the embodiment of the present disclosure, the load may be any load, and may specifically be a server as shown in fig. 3 and fig. 4. If a server has two power sources, the server may also be referred to as a dual power server.
In one embodiment, the backup common loop may have M UPSs disposed above it, which are referred to as backup UPSs with respect to the UPSs on the primary path. Referring to fig. 7, the back end of a primary transformer is connected to 3 loads of 500kVA, and the back end of a primary transformer is connected to a UPS of M +1, for example, the load power capacity of the UPS of (2+1) × 750 kVA. Referring to fig. 7, the UPS on the common backup loop can provide 1500kVA of power capacity, and thus M UPS's on the common backup loop in units of 750 kVA. The power capacity that M UPS can provide can be equal to the power capacity of the load connected with the back end of one main transformer. An M UPS may be understood as an M unit UPS. It is worth noting that: the UPS of M may provide power equal to the load power of the connected load.
In one embodiment, as shown in fig. 3 and 4, the prefabricated power supply module further includes:
an external maintenance bypass located outside the primary UPS;
the external maintenance circuit is conducted when the main UPS is maintained and disconnected when the main UPS works normally.
The external maintenance bypass is positioned outside the main UPS, when the main UPS does not work or is isolated and maintained, the external maintenance bypass can be conducted by closing a switch on the external maintenance bypass, and the commercial power is output by the transformer and supplies power to the load through the external maintenance bypass.
When the main UPS works normally, namely the main UPS can provide power to the load normally, the switch on the external maintenance bypass is disconnected, namely the external maintenance bypass is disconnected.
In one embodiment, the prefabricated power supply module further comprises: and (4) isolating the room.
The isolation room is used for isolating different electronic devices needing to be isolated in the power supply module, so that the power supply safety is improved.
For example, different ones of the transformers are located in different ones of the compartments.
The different transformers are located in different isolation bays, which may be various types of isolation bays, e.g. shelter isolation bays or container type isolation bays. Besides placing the transformer between the isolation, can also place the switch board, for example, low-voltage distribution cabinet.
For safety of power supply, fire fighting equipment including, but not limited to, fire fighting gas cylinders may also be provided in each of the isolated compartments.
In some embodiments, different UPSs are located within different bays. Different UPSs are separated through the isolation interval, so that the purpose of safe power supply is achieved.
Where the different UPSs are located in different compartments, where the UPSs include: the UPS comprises a main UPS and a standby UPS. I.e. whether it is a primary UPS or a backup UPS, as long as different UPSs are to be isolated between the isolations.
In one embodiment, any one of the UPSs (i.e., the active UPS and the standby UPS) may include a plurality of battery packs that receive input power and store power via an internal charger of the UPS when the UPS is in a charging mode. When the UPS is in the discharge mode, the battery packs may discharge the stored power to enable power to be supplied to the load.
Likewise, a power distribution cabinet, e.g., a low voltage power distribution cabinet, may be provided within the isolation bay in which the UPS is deployed.
Likewise, fire fighting equipment is located in the isolation room where the UPS is located, and likewise this fire fighting equipment includes, but is not limited to, a fire-fighting gas cylinder.
In some embodiments, the transformer and the UPS are located in different isolated compartments, for example, a specific implementation may refer to fig. 8.
To further improve the power supply safety, the transformer and the UPS will also be located in different compartments.
Referring to fig. 8, the different transformers are located in different bays, which may be various types of bays, such as shelter bays or container bays. Besides placing the transformer between the isolation, can also place the switch board, for example, low-voltage distribution cabinet.
For safety of power supply, fire fighting equipment including, but not limited to, fire fighting gas cylinders may also be provided in each of the isolated compartments.
In some embodiments, different UPSs are located within different bays. The purpose of safe power supply is achieved by isolating different UPS in the same isolation room.
As shown in fig. 5, an embodiment of the present disclosure provides a power supply control method, which is applied to a prefabricated power supply module provided in any one of the foregoing embodiments, where the method includes:
s110: detecting whether the input of each main UPS is normal; when the input of the main UPS is normal, the control interlocking switch circuit is in a first switch state; when the input of the main UPS is abnormal, the main UPS enters a discharging mode and automatically discharges;
s120: and if the input of the main UPS is abnormal, switching the interlocking switch circuit of the main UPS with the abnormal input to a second switch state.
The back end of any main UPS is provided with a interlock switch circuit which is at least respectively connected with the output end of the UPS and the public backup loop, so that the interlock switch circuit can switch between the main path of the main UPS and the public backup loop.
The interlock switch circuit comprises at least a first switch and a second switch and has a first switch state and a second switch state; in the first switching state, the first switch is closed and the second switch is open. At the moment, the main UPS supplies power outwards or a circuit output by the transformer is provided for a load through an internal bypass of the main UPS; the load can thus obtain power. And in a second switch state, the first switch is open and the second switch is closed, at which time the load draws power through the common backup loop.
The common backup loop and the path where the main UPS is located can be used for sampling current and/or voltage through the sampling resistor, and if the current on the sampling resistor is zero or the voltage on the sampling resistor is zero, the path where the main UPS is located or the common backup loop is considered to be abnormal. Of course, there are many ways to detect the abnormality of the path where the main UPS is located and the common backup loop, and the specific implementation is not limited to this.
When the main UPS is input, the main UPS automatically enters a discharging mode, and in the discharging mode, the main UPS releases the electric energy stored by the main UPS, so that power is supplied to a load.
When the input of the main UPS is abnormal, the on-off state of the interlocking switch circuit can be switched, so that the conducted path is switched to the public backup loop from the main path of the main UPS. If the common backup loop is conducted, the power output by the output end of the transformer for backup can be input into the load from the common backup loop, so that the power supply to the load is realized.
In some embodiments, the switching the interlock switch circuit of the master UPS with an abnormal input to a second switch state if there is an abnormal input to the master UPS includes:
and if the input of the main UPS is abnormal and the abnormal duration reaches a first set duration, switching the interlock switch circuit of the main UPS to the second switch state if the input of the main UPS is abnormal.
When the input abnormity of the main UPS is determined and the abnormity duration reaches the first set duration, the switching state of the interlock switch circuit is switched, on one hand, the switching caused by misjudgment of the input abnormity of the main UPS is reduced, on the other hand, in order to eliminate frequent switching caused by the recovery of the transient abnormity of the main UPS, the input abnormity of the main UPS is timed, and after the input abnormity duration of the main UPS reaches the first set duration, the interlock switch circuit is switched to conduct the public backup loop.
The first set time period may be: and the electric quantity stored by the main UPS connected with the front end of the first switch is related to the electric consumption of the load. For example, the first set time period is positively correlated with the amount of power stored by the main UPS and negatively correlated with the amount of power consumed by the load.
In some embodiments, the method further comprises:
monitoring the stored electricity quantity of each main UPS;
and determining the first set time according to the stored electric quantity and the average electric consumption of the load.
In short, the first set duration is determined in the above manner, so that uninterrupted power supply to the load can be realized through the existing electric quantity of the main UPS.
In some embodiments, the method further comprises:
determining whether an input anomaly of the UPS is eliminated;
determining whether the duration of the UPS after the input abnormality is eliminated is normal or not to reach a second set duration;
and if the input abnormality of the UPS is eliminated and the duration of the UPS is kept normal to reach the second set duration, switching the interlock switch circuit to a second switch state.
After a period of time of input failure (namely abnormality) of the main UPS, whether the abnormality of the main path of the main UPS is eliminated or not is detected, and if the abnormality is eliminated, the main path can be switched back to the main path for power supply in time.
However, in order to avoid the spurious elimination of the abnormal main path, the input abnormal elimination of the abnormal main UPS is timed to recover to the normal duration, if the timing reaches the second set duration, the probability of the spurious elimination of the abnormal main path of the main UPS is relatively low, and at this time, the path conducted by the interlock switch circuit can be switched from the common backup loop to the path where the main UPS is located.
The second set time length can be slightly longer than the time length of the abnormal false elimination of the main path of the UPS, so that unnecessary switching is reduced.
As shown in fig. 3, the prefabricated power supply module provided by the embodiment of the disclosure realizes dual power supply to a load, so that the load can continuously work as long as one power supply supplies power to the load.
Therefore, in some embodiments, the method further comprises:
when the output of one main transformer is abnormal, the interlocking switch circuit at the rear end of at least two main UPSs under the abnormal main transformer is controlled to switch to the second switch state after waiting for different durations.
For example, one primary transformer itself is abnormal, resulting in abnormal output of the primary transformer; or, the output of the main transformer is abnormal due to the abnormal bus connected to the rear end of the main transformer. If the output of the main transformer is abnormal, the inputs of all main UPSs connected to the rear end of the main transformer are abnormal, and in order to continuously supply power to the load, a chain switch circuit connected to the rear end of the main UPS is triggered to be switched from a first switch state to a second switch state.
In order to avoid interruption of the output of two main UPSs connected to the same load, after the condition switching is detected to be required, a plurality of interlocked open-end circuits under one main transformer wait for different durations to switch from a first switch state to a second switch state, so that the load power supply interruption phenomenon caused by the fact that two interlocked switch circuits connected to the same load are simultaneously in switch state switching is avoided.
It should be noted that the waiting time for the interlock switch circuit to switch from the first switch state to the second switch state cannot exceed the time for the battery pack of the corresponding main UPS to be able to continuously supply power, that is, the waiting time for the interlock switch circuit to switch to the second switch state needs to be ended before the battery pack of the main UPS is discharged.
The embodiment of the present disclosure further provides a power supply control device, the device includes:
the detection module is used for detecting whether the input of each main UPS is normal or not; when the input of the main UPS is normal, the control interlocking switch circuit is in a first switch state; when the input of the main UPS is abnormal, the main UPS enters a discharging mode and automatically discharges;
and the switching module is used for switching the interlock switch circuit of the main UPS with abnormal input to a second switch state if the input of the main UPS is abnormal.
In one embodiment, the switching module is further configured to switch the interlock switch circuit of the master UPS to the second switch state when the input of the master UPS is abnormal and the duration of the abnormality reaches a first set duration.
In one embodiment, the apparatus further comprises:
the elimination module is used for determining whether the input abnormity of the main UPS is eliminated;
the judging module is used for determining whether the duration of the normal state of the main input of the main UPS after the exception is eliminated reaches a second set duration;
the switching module is further configured to switch the interlock switch circuit to the first switch state if the normal duration of the input abnormality of the main UPS is eliminated and the second set duration is reached.
In some embodiments, the switching module is further configured to, when the output of one of the main transformers is abnormal, switch to the second switching state after chain switch circuits at the rear end of the main UPSs under the abnormal main transformer wait for different durations.
Referring to fig. 7, a power supply control method for a prefabricated power supply module according to an embodiment of the present disclosure may include:
judging whether the input of the main UPS is normal or not;
if not, the main UPS discharge mode carries out the discharge of the main UPS;
if yes, the main UPS is in an online mode, namely the main UPS is connected to a power supply circuit and is powered by the power output by the transformer;
if the main UPS is in the discharging mode, further judging whether the discharging of the main UPS exceeds the corresponding preset time length;
and if the preset time length is exceeded, switching to a public backup loop.
The UPS output of a group of transformers is used as a public backup, namely a public backup loop is formed, and the UPS of one or more groups of main transformer modules can be used as a backup to supply power.
Referring to fig. 9, a main UPS of M is connected to the rear end of the main transformer, and M in the prefabricated power supply module shown in fig. 9 is 3. The back end of each path of main UPS is connected with a chain switch circuit, that is, the back end of one path of main transformer in fig. 9 is connected with 3 paths of chain switch circuits, namely, a chain switch circuit a, a chain switch circuit B and a chain switch circuit C.
The switching process of the interlock switch circuit is firstly broken and then closed, and in order to avoid the condition that the interlock switch circuit A, the interlock switch circuit B and the interlock switch C are switched to the standby UPS at the same time to cause load power failure, the switching sequence is required to be limited. In a normal state, the common backup power supply module detects the UPS operating state of the power supply module in which each active power supply module is located, for example, by configuring control of a Programmable Logic Controller (PLC). Under the power supply module is set, when the UPS is in the discharging mode, the waiting time lengths for switching the interlock switch circuit A, the interlock switch circuit B and the interlock switch circuit C to the second switching state are respectively as follows: ta, Tb and Tc. Wherein Ta ≠ Tb ≠ Tc. The timing units for Ta, Tb and Tc may be seconds or milliseconds.
If the main UPS can not recover the normal online power supply state (for example, the commercial power is not recovered or the generator is not normally put into use), switching is started, the switching waiting time cannot exceed the battery backup time of each group of main UPS, and otherwise, the load is powered off due to the fact that the battery is discharged and is still not switched.
Embodiments of the present disclosure provide a computer storage medium storing computer-executable instructions that are executed by a processor to implement a power supply control method according to any embodiment of the present disclosure, for example, at least the method shown in fig. 5 and/or fig. 6.
In the several embodiments provided in the present disclosure, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of the unit is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.
The above-mentioned separate components may or may not be physically separate, and the components shown may or may not be physical units; can be located in one place or distributed on a plurality of network units; some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, all the functional units in the embodiments of the present disclosure may be integrated into one processing unit, or each unit may be separately regarded as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
Those of ordinary skill in the art will understand that: all or part of the steps for realizing the method embodiments can be completed by hardware related to program instructions, the program can be stored in a readable storage medium, and the program executes the steps comprising the method embodiments when executed; and the aforementioned storage medium includes: various media capable of storing program codes, such as a removable Memory device, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, and an optical disk.
Alternatively, the integrated unit of the present disclosure may be stored in a readable storage medium if it is implemented in the form of a software functional module and sold or used as a separate product. Based on such understanding, the technical solutions of the embodiments of the present disclosure may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a terminal to execute all or part of the methods according to the embodiments of the present disclosure. And the aforementioned storage medium includes: a removable storage device, a ROM, a RAM, a magnetic or optical disk, or various other media that can store program code.
It should be noted that: the technical solutions described in the embodiments of the present disclosure can be arbitrarily combined without conflict.
The above description is only for the specific embodiments of the present disclosure, but the scope of the present disclosure is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present disclosure, and all the changes or substitutions should be covered within the scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.
Claims (10)
1. A prefabricated power supply module, characterized in that the prefabricated power supply module comprises:
an N +1 transformer, wherein the N +1 transformer comprises: n, a main transformer and 1 a standby transformer, wherein the standby transformer is connected to a common backup loop;
the rear end of each main transformer is provided with an M +1 main uninterrupted power supply UPS; wherein, the outputs of the M +1 main UPS mutually form a distributed redundant backup;
one interlocking switch circuit corresponds to one main UPS;
one of the interlock switch circuits includes at least:
the first switch is connected to the rear end of the corresponding main UPS;
the second switch is connected to the public backup loop;
the interlock switch circuit has a first switch state and a second switch state;
when the interlock switch circuit is in the first switch state, the first switch is closed and the second switch is opened;
in the interlock switch circuit, the first switch is opened and the second switch is closed in the second switch state.
2. The prefabricated power supply module as claimed in claim 1, further comprising:
an external maintenance bypass located outside the primary UPS; the external maintenance circuit is conducted when the main UPS is maintained and disconnected when the main UPS works normally.
3. The prefabricated power supply module of claim 1 or 2, wherein the common backup loop has M backup UPSs.
4. The prefabricated power supply module as claimed in claim 1 or 2, further comprising:
isolating the room;
wherein different transformers are located in different isolation compartments;
and/or
Different UPSs are located in different bays.
5. The prefabricated power module of claim 4, wherein the transformer and the UPS are located in different isolated compartments.
6. A power supply control method applied to the prefabricated power supply module provided in any one of claims 1 to 5, the method comprising:
detecting whether the input of each main UPS is normal; when the input of the main UPS is normal, the control interlocking switch circuit is in a first switch state; when the input of the main UPS is abnormal, the main UPS enters a discharging mode and automatically discharges;
and if the input of the main UPS is abnormal, switching the interlocking switch circuit of the main UPS with the abnormal input to a second switch state.
7. The method of claim 6, wherein the switching the interlock switch circuit of the active UPS with an input abnormality to a second switch state if the input abnormality of the active UPS exists comprises:
and if the input of the main UPS is abnormal and the abnormal duration reaches a first set duration, switching the interlock switch circuit of the main UPS to the second switch state if the input of the main UPS is abnormal.
8. The method of claim 6, further comprising:
determining whether the input abnormality of the main UPS is eliminated;
determining whether the duration of the normal input of the main UPS after the exception is eliminated reaches a second set duration;
and if the input abnormality of the main UPS is eliminated and the duration of the normal state is maintained to reach the second set duration, the interlock switch circuit is switched to the first switch state.
9. The method according to any one of claims 6 to 8, further comprising:
when the output of one main transformer is abnormal, the chain switch circuit at the rear end of the plurality of main UPSs under the abnormal main transformer is switched to the second switch state after waiting for different durations.
10. A computer storage medium having stored thereon computer-executable instructions; the computer instructions, when executed by a processor, are capable of implementing the method provided by any one of claims 6 to 9.
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