CN109687569B - Data center power supply system - Google Patents
Data center power supply system Download PDFInfo
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- CN109687569B CN109687569B CN201811509534.1A CN201811509534A CN109687569B CN 109687569 B CN109687569 B CN 109687569B CN 201811509534 A CN201811509534 A CN 201811509534A CN 109687569 B CN109687569 B CN 109687569B
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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
- H02J9/062—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 for AC powered loads
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Abstract
The invention is suitable for the technical field of basic equipment, and provides a power supply system of a data center, which comprises: if the utility power is supplied normally and neither the first UPS nor the second UPS fails, the first UPS rectifies and inverts the commercial power to obtain the target alternating current, and transmits the target alternating current to the electric equipment through the first switching unit, meanwhile, the second UPS rectifies and inverts the commercial power to obtain the target alternating current, and the target alternating current is transmitted to the electric equipment through the second switching unit, if the commercial power is supplied normally and the first UPS or the second UPS fails, the uninterrupted power supply UPS without failure rectifies and inverts the commercial power to obtain the target alternating current, and transmits the target alternating current to the electric equipment through the corresponding switching unit, and meanwhile, the switching unit corresponding to the UPS with the fault is switched to a mains supply mode, and mains supply is transmitted to the electric equipment.
Description
Technical Field
The invention belongs to the technical field of basic equipment, and particularly relates to a power supply system of a data center.
Background
With the rapid development of big data and cloud services, the scale of a data center is larger and larger, the requirement on the reliability of the system is higher and higher, and the power distribution architecture of a 2N power supply system in the data center system is widely applied. In a 2N Power Supply System, two UPS (Uninterruptible Power System/Uninterruptible Power Supply) simultaneously use the commercial Power to Supply Power to the electric equipment, when one UPS stops supplying Power, the other UPS independently uses the commercial Power to Supply Power to the IT equipment, therefore, the output Power of each UPS needs to be not less than the load Power corresponding to the IT equipment, and when two UPSs are both working normally and supplying Power simultaneously, because the load of each IT equipment is balanced, the output Power of each UPS is the same, which results in that each UPS is working below half load, causing waste of resources and higher construction cost.
In summary, the 2N power supply system in the prior art has the problems of resource waste and high construction cost when supplying power to the electric equipment.
Disclosure of Invention
In view of this, the embodiment of the present invention provides a data center power supply system, so as to solve the problems of resource waste and high construction cost when a 2N power supply system in the prior art supplies power to electrical equipment.
The data center power supply system provided by the embodiment of the invention is used for supplying power to electric equipment, and comprises a first uninterrupted power supply UPS, a second uninterrupted power supply UPS, a first switching unit and a second switching unit;
the first switching unit is respectively connected with the first uninterruptible power supply UPS and the electric equipment;
the second switching unit is respectively connected with the second uninterruptible power supply UPS and the electric equipment;
the first switching unit, the second switching unit, the first uninterruptible power supply UPS and the second uninterruptible power supply UPS are respectively connected to a mains supply;
if the mains supply is normal and neither the first uninterruptible power supply UPS nor the second uninterruptible power supply UPS fails, the first uninterruptible power supply UPS rectifies and inverts the mains supply to obtain target alternating current, and the target alternating current is transmitted to the electric equipment through the first switching unit; meanwhile, the second UPS rectifies and inverts the commercial power to obtain target alternating current, and the target alternating current is transmitted to the electric equipment through the second switching unit.
If the mains supply is normal and the first uninterruptible power supply UPS or the second uninterruptible power supply UPS fails, the uninterruptible power supply UPS without the failure rectifies and inverts the mains supply to obtain target alternating current, and the target alternating current is transmitted to the electric equipment through the corresponding switching unit; and meanwhile, the switching unit corresponding to the UPS with the fault is switched to a mains supply mode, and mains supply is transmitted to the electric equipment.
In one embodiment, further comprising:
if the mains supply is abnormal and neither the first uninterruptible power supply UPS nor the second uninterruptible power supply UPS fails, the first uninterruptible power supply UPS inverts to output a first electric signal to the first switching unit, and the first switching unit transmits the first electric signal to the electric equipment; meanwhile, the second UPS inverts and outputs a second electric signal to the second switching unit, and the second switching unit transmits the second electric signal to the electric equipment.
In one embodiment, further comprising:
if the utility power supply is abnormal and the first uninterruptible power supply UPS or the second uninterruptible power supply UPS fails, the uninterruptible power supply UPS which does not fail inverts and outputs the third electrical signal to the corresponding switching unit, and the corresponding switching unit transmits the third electrical signal to the electric equipment.
In one embodiment, the first uninterruptible power supply UPS includes a first rectification unit, a first inverter unit, a first output unit, and a first battery pack unit;
the first inversion unit is respectively connected with the first rectification unit, the first battery pack unit and the first output unit; the first output unit is connected with the first switching unit;
the first rectifying unit is connected with mains supply;
wherein the rated power of the first rectifying unit is smaller than the rated power of the first uninterruptible power supply UPS.
In one embodiment, the first UPS rectifies and inverts a commercial power to obtain a target ac power, and transmits the target ac power to the electric device through the first switching unit, including:
the first rectifying unit rectifies the commercial power to obtain direct current, and transmits the direct current to the first inverting unit, the first inverting unit inverts the direct current to generate target alternating current to be transmitted to the first output unit, and the first output unit transmits the target alternating current to the electric equipment through the first switching unit.
In one embodiment, further comprising:
if the mains supply is abnormal, the first inversion unit receives the first electric signal output by the first battery pack unit, performs inversion processing on the first electric signal, and transmits the inverted first electric signal to the first output unit, and the first output unit transmits the inverted first electric signal to the electric equipment through the first switching unit.
In one embodiment, the first uninterruptible power supply UPS further includes a first bypass unit connected to the first output unit;
the first bypass unit is connected to mains supply;
if the mains supply is normal and the first rectifying unit and/or the first inverter unit have faults, the first bypass unit transmits the mains supply to the first output unit; the first output unit transmits commercial power to the electric equipment through the first switching unit.
In one embodiment, the first uninterruptible power supply UPS further comprises a first service bypass unit connected to the first switching unit;
the first maintenance bypass unit is connected with commercial power;
when the first rectifying unit, the first inverter unit and/or the first output unit are overhauled, the first overhauling bypass unit transmits the commercial power to the electric equipment through the first switching unit.
In one embodiment, further comprising:
if the commercial power is normal, the first rectifying unit rectifies the commercial power to obtain direct current, and the direct current is transmitted to the first battery pack unit.
In one embodiment, the second uninterruptible power supply UPS includes a second rectification unit, a second inverter unit, a second output unit, and a second battery pack unit;
the second inverter unit is respectively connected with the second rectifying unit, the second battery pack unit and the second output unit; the second output unit is connected with the second switching unit;
the second rectifying unit is connected with mains supply;
wherein the rated power of the second rectifying unit is smaller than the rated power of the second uninterruptible power supply UPS.
Compared with the prior art, the embodiment of the invention has the following beneficial effects: the embodiment provides a data center power supply system, the data center power supply system includes first uninterrupted power supply UPS, second uninterrupted power supply UPS, first switching unit and second switching unit, if mains supply is normal and first uninterrupted power supply UPS and second uninterrupted power supply UPS are not failed, then first uninterrupted power supply UPS rectifies and inverts the commercial power to obtain the target alternating current, and carry the target alternating current to the consumer through first switching unit, and second uninterrupted power supply UPS rectifies and inverts the commercial power to obtain the target alternating current, and carries the target alternating current to the consumer through second switching unit. If the mains supply is normal and the first uninterruptible power supply UPS or the second uninterruptible power supply UPS fails, the uninterruptible power supply UPS without the failure rectifies and inverts the mains supply to obtain target alternating current, and conveys the target alternating current to the electric equipment through the corresponding switching unit, and meanwhile, the switching unit corresponding to the failed uninterruptible power supply UPS switches to a mains supply mode and conveys the mains supply to the electric equipment. In the embodiment of the invention, when the commercial power is normal and the first uninterrupted power supply UPS and the second uninterrupted UPS are not in fault, the first uninterrupted power supply UPS and the second uninterrupted UPS both output target alternating current, when the first uninterrupted power supply UPS or the second uninterrupted power supply UPS is in fault, the uninterrupted power supply UPS which is not in fault continues to output the target alternating current, the switching unit corresponding to the uninterrupted power supply UPS which is in fault is automatically switched to the commercial power supply mode to directly utilize the commercial power to supply power to the electric equipment, therefore, under the condition that the commercial power is normal, if the two uninterrupted power supplies UPS are not in fault, half of the load is born by each uninterrupted power supply, if one uninterrupted power supply UPS is in fault, the uninterrupted power supply which is not in fault is responsible for half of the load, the switching unit corresponding to the uninterrupted power supply UPS which is in fault is automatically switched to the commercial power supply mode to supply power by utilizing the commercial power to supply power to supply the electric equipment, the UPS is in charge of the other half of load, namely when one UPS breaks down, the other UPS does not need to bear all the load, and the switching unit corresponding to the broken UPS can directly utilize the mains supply to supply power.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a data center power supply system according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a data center power supply system according to an embodiment of the present invention.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
The terms "comprises" and "comprising," and any variations thereof, in the description and claims of this invention and the above-described drawings are intended to cover non-exclusive inclusions. For example, a process, method, or system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus. Furthermore, the terms "first," "second," and "third," etc. are used to distinguish between different objects and are not used to describe a particular order.
In order to explain the technical means of the present invention, the following description will be given by way of specific examples.
Fig. 1 illustrates a module structure of a data center power supply system 100 provided in an embodiment of the present invention, and for convenience of description, only the parts related to the embodiment of the present invention are illustrated, and the details are as follows:
as shown in fig. 1, a data center power supply system 100 according to an embodiment of the present invention is configured to supply power to a power-using device 200, where the data center power supply system 100 includes a first uninterruptible power supply UPS110, a second uninterruptible power supply UPS120, a first switching unit 130, and a second switching unit 140.
The first switching unit 130 is connected to the first uninterruptible power supply UPS110 and the electric devices 200, respectively.
The second switching unit 140 is connected to the second UPS120 and the electric devices 200, respectively.
The first switching unit 130, the second switching unit 140, the first UPS110 and the second UPS120 are respectively connected to the utility power.
If the utility power is supplied normally and neither the first UPS110 nor the second UPS120 fails, the first UPS110 rectifies and inverts the utility power to obtain a target ac, and transmits the target ac to the electric equipment 200 through the first switching unit 130. Meanwhile, the second UPS120 rectifies and inverts the commercial power to obtain a target ac, and transmits the target ac to the electric device 200 through the second switching unit 140.
If the utility power is supplied normally and the first UPS110 or the second UPS120 fails, the uninterruptible power supply UPS that has not failed rectifies and inverts the utility power to obtain the target ac power, and transmits the target ac power to the electric equipment through the corresponding switching unit. And meanwhile, the switching unit corresponding to the UPS with the fault is switched to a mains supply mode, and mains supply is transmitted to the electric equipment.
In this embodiment, the electric device is an IT device.
In this embodiment, when the utility power is supplied normally and the first UPS and the second UPS are both not faulty, that is, both the first UPS and the second UPS can output power normally, both the first UPS and the second UPS output target ac power to the electric equipment, so that the electric equipment can operate normally.
In this embodiment, when the utility power is supplied normally and the first UPS or the second UPS has a fault, that is, when one UPS cannot output power normally, the UPS that has no fault rectifies and inverts the utility power to obtain the target ac, and transmits the target ac to the electric equipment through the corresponding switching unit. And meanwhile, the switching unit corresponding to the UPS with the fault is switched to a mains supply mode, and mains supply is transmitted to the electric equipment.
Taking a specific application scenario as an example, when the first uninterruptible power supply UPS has a fault, when the utility power is supplied normally, the second uninterruptible power supply UPS rectifies and inverts the utility power, outputs the target alternating current to the second switching unit, the second switching unit switches to the uninterruptible power supply mode, and transmits the target alternating current to the electric equipment, and meanwhile, the first switching unit switches to the utility power supply mode, and directly supplies the utility power to the electric equipment.
Optionally, if the utility power is supplied normally and both the first uninterruptible power supply UPS and the second uninterruptible power supply UPS have faults, the first switching unit and the second switching unit switch to the utility power supply mode, and the first switching unit and the second switching unit transmit the utility power to the electric equipment, so that under the condition that both the first uninterruptible power supply UPS and the second uninterruptible power supply UPS cannot output the utility power, the utility power can be guaranteed to be supplied directly, and the reliability of power supply is improved.
In this embodiment, when the first switching unit or the second switching unit receives the target ac output by the corresponding UPS, the first switching unit or the second switching unit switches to the UPS power supply mode to transmit the target ac to the electrical equipment, and when neither the first switching unit nor the second switching unit receives the target ac output by the corresponding UPS, the first switching unit or the second switching unit switches to the utility power supply mode to directly supply the utility power to the electrical equipment.
Optionally, the data center power supply system 100 further includes:
if the utility power is abnormally supplied and neither the first UPS110 nor the second UPS120 fails, the first UPS110 inverts to output a first electrical signal to the first switching unit 130, and the first switching unit 130 transmits the first electrical signal to the electric equipment. Meanwhile, the second UPS120 inverts to output the second electrical signal to the second switching unit 140, and the second switching unit 140 transmits the second electrical signal to the electric device.
In this embodiment, when the utility power is abnormally supplied and neither the first UPS nor the second UPS fails, the first UPS and the second UPS use their own batteries to supply power to the electric equipment.
Optionally, the data center power supply system 100 further includes:
if the utility power is abnormally supplied and the first UPS110 or the second UPS120 fails, the non-failed UPS inverts to output the third electrical signal to the corresponding switching unit, and the corresponding switching unit transmits the third electrical signal to the electric equipment.
In this embodiment, when the utility power is abnormally supplied and one UPS between the first UPS and the second UPS fails, the UPS that has not failed supplies power to the electric device by its own battery.
In this embodiment, when the utility power supply is normal, when first uninterrupted power supply UPS and second uninterrupted power supply UPS do not have a fault, then first uninterrupted power supply UPS and second uninterrupted power supply UPS all output the target alternating current, when first uninterrupted power supply UPS or second uninterrupted power supply UPS have a fault, then the uninterrupted power supply UPS that does not have a fault continues to output the target alternating current, the switching unit that the uninterrupted power supply UPS that has a fault corresponds automatically switches to the utility power supply mode, directly utilize the utility power to supply power for the consumer, thereby realized whether have an uninterrupted power supply UPS fault, all can utilize the utility power to carry out the double-circuit power supply, can drive more consumers and carry out work, the reliability of supplying power has been guaranteed.
In this embodiment, on the premise of ensuring the reliability of power supply, when the utility power is normal, if there is no failure in both the UPS, half of the load is borne by each UPS, if there is a failure in one UPS, half of the load is borne by the non-failed UPS, the corresponding switching unit of the failed UPS is automatically switched to the utility power supply mode, and the utility power is used to supply power to the electric equipment, and the other half of the load is borne by the utility power, i.e. when one UPS fails, the other UPS does not need to bear all the load, the corresponding switching unit of the failed UPS can directly utilize the utility power to supply power, and when none of the UPS fails, the UPS still bears half of the load, therefore, when the utility power is normal, the rated working power of the UPS does not need to be less than the load power, the load power is only half of the load power, so that the configuration of the UPS can be reduced, the waste of resources is reduced, and the construction cost of the UPS is reduced.
As shown in fig. 2, the first UPS110 according to an embodiment of the present invention includes a first rectifying unit 111, a first inverting unit 112, a first output unit 113, and a first battery pack unit 114.
The first inverter unit 112 is connected to the first rectifying unit 111, the first battery pack unit 114, and the first output unit 113, respectively. The first output unit 113 is connected to the first switching unit 130.
The first rectifying unit 111 is connected to the mains.
The rated power of the first rectifying unit 111 is smaller than the rated power of the first UPS 110.
Optionally, the first rectifying unit 111 rectifies the utility power to obtain a direct current, and transmits the direct current to the first inverting unit 112, the first inverting unit 112 inverts the direct current to generate a target alternating current, and transmits the target alternating current to the first output unit 113, and the first output unit 113 transmits the target alternating current to the electric equipment through the first switching unit 130.
In this embodiment, when the utility power is supplied normally and the first UPS is not faulty, the first rectifying unit in the first UPS rectifies the utility power to obtain a direct current, the first inverting unit inverts the direct current to obtain a target alternating current, and the first output unit outputs the target alternating current to the first switching unit.
In this embodiment, when the utility power is supplied normally and the first UPS has a fault, but the second UPS has no fault, the first switching unit directly transmits the utility power to the electric equipment, the second rectifying unit in the second UPS still operates according to the operating parameters of the two UPSs in operation, and the load power borne by the second UPS is unchanged, that is, no matter whether one UPS has a fault, the load power borne by the UPS that has no fault is unchanged.
In this embodiment, the rated power of the first rectifying unit is half of the rated power of the first UPS, that is, half of the rated power of the first inverting unit.
In this embodiment, in order to guarantee the reliability of power supply, avoid the problem of overload, and take into account the problem of battery charging, the rated power of the first rectifying unit may be slightly larger than half of the rated power of the first UPS, for example, the rated power of the first rectifying unit is 60% of the rated power of the UPS.
In this embodiment, assuming that the output power of each UPS is X (that is, the rated power of the inverter unit is X), the rated power of the rectifier unit in the UPS can be configured according to X/2, that is, only half of the rated power of the inverter unit is needed, and it is not necessary to configure according to X, so that the power configuration of the rectifier unit in the UPS can be reduced, and the building cost of the UPS is reduced.
The first rectifying unit includes a first Rectifier, and the first Rectifier may include a mains input breaker, a fuse, a contactor, an inductor, an IGBT (Insulated Gate Bipolar Transistor), an SCR (Silicon Controlled Rectifier), a diode, a heat sink, an electrolysis unit, a blower, a copper bar, a wire, a Rectifier control unit, and the like.
Wherein, the first inverter unit comprises a first inverter.
The first output unit comprises a first air switch, and the first air switch is a switch which can be automatically switched off as long as the current in the circuit exceeds the rated current, so that bypass inversion switching is realized.
Optionally, if the utility power is supplied abnormally, the first inverter unit 112 receives the first electrical signal output by the first battery pack unit 114, performs an inverter process on the first electrical signal, and transmits the inverted first electrical signal to the first output unit 113, and the first output unit 113 transmits the inverted first electrical signal to the electric device through the first switching unit 130.
Wherein the first battery unit includes a secondary battery.
Optionally, the first UPS110 further includes a first bypass unit 115 connected to the first output unit 113.
The first bypass unit 115 is connected to the mains.
If the utility power is normal and the first rectifying unit 111 and/or the first inverting unit 112 have a fault, the first bypass unit 115 transmits the utility power to the first output unit 113. The first output unit 113 transmits the commercial power to the electric device through the first switching unit 130.
In this embodiment, under a normal condition of the utility power, but when the first rectifying unit 111 and/or the first inverting unit 112 have a fault and cannot receive the utility power and transmit the utility power, the utility power flows to the first output unit through the first bypass unit.
Optionally, the first UPS110 further includes a first service bypass unit 116 connected to the first switching unit 130.
The first service bypass unit 116 is connected to the mains.
When the first rectifying unit 111, the first inverting unit 112, and/or the first output unit 113 are overhauled, the first overhaul bypass unit 116 transmits the commercial power to the electric equipment through the first switching unit 130.
In this embodiment, when needing to overhaul uninterrupted power source UPS, the manual work opens first maintenance bypass unit to close first bypass unit and first rectifier unit, commercial power alright with directly supplying to first switching unit through the first maintenance bypass unit who opens.
Optionally, if the utility power is normal, the first rectifying unit 111 rectifies the utility power to obtain a direct current, and transmits the direct current to the first battery unit 114.
In this embodiment, the first UPS may also charge the first battery pack unit using the utility power under the condition that the utility power is normal.
Alternatively, the second uninterruptible power supply UPS120 includes a second rectification unit 121, a second inverter unit 122, a second output unit 123, and a second battery pack unit 124.
The second inverter unit 122 is connected to the second rectifying unit 121, the second battery pack unit 124, and the second output unit 123, respectively. The second output unit 123 is connected to the second switching unit 140.
The second rectification unit 121 is connected to the mains.
The rated power of the second rectifying unit 121 is smaller than the rated power of the second UPS 120.
Optionally, the second rectifying unit rectifies the utility power to obtain a direct current, and transmits the direct current to the second inverting unit, the second inverting unit inverts the direct current to generate a target alternating current, and transmits the target alternating current to the second output unit, and the second output unit transmits the target alternating current to the electric equipment through the second switching unit 130.
Wherein the second rectifying unit comprises a second rectifier. The second inverter unit includes a second inverter.
The second output unit comprises a second air switch which is a switch capable of being automatically switched off as long as the current in the circuit exceeds the rated current, so that bypass inversion switching is realized.
Optionally, if the utility power is supplied abnormally, the second inverter unit receives the second electrical signal output by the second battery pack unit, performs inverter processing on the second electrical signal, and transmits the inverted second electrical signal to the second output unit, and the second output unit transmits the inverted second electrical signal to the electric device through the second switching unit 130.
Optionally, the second UPS110 further includes a second bypass unit connected to the second output unit.
The second bypass unit is connected with the mains supply.
If the commercial power is normal and the second rectifying unit and/or the second inverter unit have faults, the second bypass unit transmits the commercial power to the second output unit. The second output unit transmits the commercial power to the electric equipment through the second switching unit 130.
Optionally, the second UPS110 further includes a second service bypass unit connected to the second switching unit 130.
The second overhaul bypass unit is connected with the mains supply.
When the second rectifying unit, the second inverter unit and/or the second output unit are overhauled, the second overhauling bypass unit transmits the commercial power to the electric equipment through the second switching unit.
Optionally, if the utility power is normal, the second rectifying unit rectifies the utility power to obtain direct current, and transmits the direct current to the second battery unit.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. The data center power supply system is used for supplying power to electric equipment and comprises a first uninterrupted power supply UPS, a second uninterrupted power supply UPS, a first switching unit and a second switching unit;
the first switching unit is respectively connected with the first uninterruptible power supply UPS and the electric equipment;
the second switching unit is respectively connected with the second uninterruptible power supply UPS and the electric equipment;
the first switching unit, the second switching unit, the first uninterruptible power supply UPS and the second uninterruptible power supply UPS are respectively connected to a mains supply;
the first uninterruptible power supply UPS comprises a first rectifying unit and a first inverting unit, and the rated power of the first rectifying unit is smaller than that of the first inverting unit;
the second Uninterruptible Power Supply (UPS) comprises a second rectifying unit and a second inverting unit, and the rated power of the second rectifying unit is smaller than that of the second inverting unit;
if the mains supply is normal and neither the first uninterruptible power supply UPS nor the second uninterruptible power supply UPS fails, the first uninterruptible power supply UPS rectifies and inverts the mains supply to obtain target alternating current, and the target alternating current is transmitted to the electric equipment through the first switching unit; meanwhile, the second uninterruptible power supply UPS rectifies and inverts the commercial power to obtain target alternating current, and the target alternating current is transmitted to the electric equipment through the second switching unit;
if the mains supply is normal and the first uninterruptible power supply UPS or the second uninterruptible power supply UPS fails, the uninterruptible power supply UPS without the failure rectifies and inverts the mains supply to obtain target alternating current, and the target alternating current is transmitted to the electric equipment through the corresponding switching unit; meanwhile, the switching unit corresponding to the UPS with the fault is switched to a commercial power supply mode, and commercial power is transmitted to the electric equipment;
if the mains supply is abnormal and neither the first uninterruptible power supply UPS nor the second uninterruptible power supply UPS fails, the first uninterruptible power supply UPS inverts to output a first electric signal to the first switching unit, and the first switching unit transmits the first electric signal to the electric equipment; meanwhile, the second Uninterruptible Power Supply (UPS) inverts to output a second electric signal to the second switching unit, and the second switching unit transmits the second electric signal to the electric equipment;
if the utility power supply is abnormal and the first uninterruptible power supply UPS or the second uninterruptible power supply UPS fails, the uninterruptible power supply UPS which does not fail inverts and outputs the third electrical signal to the corresponding switching unit, and the corresponding switching unit transmits the third electrical signal to the electric equipment.
2. The data center power supply system of claim 1, wherein the first Uninterruptible Power Supply (UPS) further comprises a first output unit and a first battery pack unit;
the first inversion unit is respectively connected with the first rectification unit, the first battery pack unit and the first output unit; the first output unit is connected with the first switching unit;
the first rectifying unit is connected with mains supply.
3. The data center power supply system according to claim 2, wherein the first UPS rectifies and inverts the commercial power to obtain a target ac power, and transmits the target ac power to the electric equipment through the first switching unit, and the system includes:
the first rectifying unit rectifies the commercial power to obtain direct current, and transmits the direct current to the first inverting unit, the first inverting unit inverts the direct current to generate target alternating current to be transmitted to the first output unit, and the first output unit transmits the target alternating current to the electric equipment through the first switching unit.
4. The data center power supply system of claim 2, further comprising:
if the mains supply is abnormal, the first inversion unit receives the first electric signal output by the first battery pack unit, performs inversion processing on the first electric signal, and transmits the inverted first electric signal to the first output unit, and the first output unit transmits the inverted first electric signal to the electric equipment through the first switching unit.
5. The data center power supply system of claim 2, wherein the first Uninterruptible Power Supply (UPS) further comprises a first bypass unit connected to the first output unit;
the first bypass unit is connected to mains supply;
if the mains supply is normal and the first rectifying unit and/or the first inverter unit have faults, the first bypass unit transmits the mains supply to the first output unit; the first output unit transmits commercial power to the electric equipment through the first switching unit.
6. The data center power supply system of claim 2, wherein the first Uninterruptible Power Supply (UPS) further comprises a first service bypass unit connected to the first switching unit;
the first maintenance bypass unit is connected with commercial power;
when the first rectifying unit, the first inverter unit and/or the first output unit are overhauled, the first overhauling bypass unit transmits the commercial power to the electric equipment through the first switching unit.
7. The data center power supply system of claim 2, further comprising:
if the commercial power is normal, the first rectifying unit rectifies the commercial power to obtain direct current, and the direct current is transmitted to the first battery pack unit.
8. The data center power supply system of claim 1, wherein the second Uninterruptible Power Supply (UPS) further comprises a second output unit and a second battery pack unit;
the second inverter unit is respectively connected with the second rectifying unit, the second battery pack unit and the second output unit; the second output unit is connected with the second switching unit;
the second rectifying unit is connected with mains supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811509534.1A CN109687569B (en) | 2018-12-11 | 2018-12-11 | Data center power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811509534.1A CN109687569B (en) | 2018-12-11 | 2018-12-11 | Data center power supply system |
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| CN112737090A (en) * | 2020-12-28 | 2021-04-30 | 科华恒盛股份有限公司 | Parallel operation UPS system control method |
| CN112886700A (en) * | 2021-01-26 | 2021-06-01 | 国网江苏省电力有限公司南京供电分公司 | Double-loop uninterruptible cabinet power supply system |
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