CN211908370U - Data center power supply system - Google Patents
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- CN211908370U CN211908370U CN202020271647.9U CN202020271647U CN211908370U CN 211908370 U CN211908370 U CN 211908370U CN 202020271647 U CN202020271647 U CN 202020271647U CN 211908370 U CN211908370 U CN 211908370U
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Abstract
The utility model discloses a data center power supply system, which relates to the technical field of power supply equipment and is used for solving the problem that when a power supply system is damaged, the corresponding load stops running; the input end of the auxiliary power supply device is connected with the mains supply, and the output end of the auxiliary power supply device is connected with the load through the switch piece; when the main power supply device fails, the corresponding auxiliary power supply device is controlled to supply power to the load through the switch piece. When the main power supply device operates normally, the main power supply device supplies power to the load; when the main power supply device fails, the corresponding auxiliary power supply device and the load are conducted under the action of the switch piece, and the corresponding auxiliary power supply device supplies power to the load at the moment so as to avoid the load from being powered off passively and stopping running, thereby reducing loss.
Description
Technical Field
The utility model relates to a power supply unit technical field especially relates to a data center power supply system.
Background
According to a traditional data center power supply system, a high-voltage alternating current commercial power is reduced to a three-phase low-voltage alternating current voltage through a power frequency transformer, then according to the application of a data center, the commercial power is directly supplied to the other path of the commercial power, high-voltage direct current power supply is adopted, or the two paths of the commercial power are both supplied with high-voltage direct current power, then the two paths of the commercial power are input to a first cabinet of a column, and the first cabinet of the column supplies power for IT equipment.
And after adopting power frequency transformer to step down, still need carry out the conversion of electric energy through rectification or rectification and contravariant, just can carry IT equipment such as server and network equipment with the electric energy after needing to carry out multistage conversion promptly, power supply efficiency is relatively poor.
In the prior art, a phase-shifting transformer is used to implement the above-described multi-stage conversion. However, a load is usually connected to only one power supply system, so that when the power supply system is damaged, the connection between the load and the power supply system is disconnected, and the load stops operating.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to provide a data center power supply system, which reduces the risk of the passive stop operation of the load through a main power supply device and an auxiliary power supply device.
The purpose of the utility model is realized by adopting the following technical scheme: a power supply system of a data center comprises a main power supply device and at least one auxiliary power supply device, wherein the input end of the main power supply device is connected with a mains supply, and the output end of the main power supply device is connected with a load; the input end of the auxiliary power supply device is connected with the mains supply, and the output end of the auxiliary power supply device is connected with the load through the switch piece; when the main power supply device fails, the corresponding auxiliary power supply device is controlled to supply power to the load through the switch piece.
Furthermore, the main power supply device and each auxiliary power supply device respectively comprise a phase-shifting transformer and a voltage-regulating rectifying unit, the phase-shifting transformer is provided with a first output end, the first output end is connected with the input end of the voltage-regulating rectifying unit, and the output end of the voltage-regulating rectifying unit outputs direct-current voltage DC 1.
Further, the switch part comprises a first switch, and the first switch is connected between the output ends of the corresponding voltage-regulating rectifying units.
Further, the main power supply device further includes a first power distribution unit connected between the voltage regulating and rectifying unit of the main power supply device and the load, and the direct current voltage DC1 of the main power supply device is distributed to the load via the first power distribution unit.
Further, the main power supply device further comprises a battery, and the battery is connected with the first power distribution unit.
Further, the phase-shifting transformer of the main power supply device also has a second output terminal which is connected with the load and outputs an alternating-current voltage AC 2.
Furthermore, the phase-shifting transformer of each secondary supply device also has a second output and is connected to the load via a second switch.
Further, the main power supply device further includes a second power distribution unit connected between the second output terminal of the main power supply device and the load, and the alternating-current voltage AC2 at the second output terminal of the main power supply device is distributed to the load via the second power distribution unit.
Further, the primary power supply and each secondary power supply include a phase-shifting transformer having a second output for outputting an AC voltage AC 2; the switch member includes a second switch connected between the corresponding second output terminals.
Further, the main power supply device further includes a second power distribution unit connected between the second output terminal of the main power supply device and the load, and the alternating-current voltage AC2 at the second output terminal of the main power supply device is distributed to the load via the second power distribution unit.
Compared with the prior art, the beneficial effects of the utility model reside in that: when the main power supply device normally operates, the main power supply device supplies power to the load; when the main power supply device breaks down, the corresponding auxiliary power supply device and the load are conducted under the action of the switch piece, and the corresponding auxiliary power supply device supplies power to the load at the moment so as to avoid the load from being powered off passively and stopping running, thereby reducing loss.
Drawings
Fig. 1 is a block diagram of a power supply system according to a first embodiment;
fig. 2 is a block diagram of a power supply system according to a second embodiment;
fig. 3 is a block diagram of a power supply system according to a second embodiment;
fig. 4 is a block diagram of a power supply system according to a third embodiment;
fig. 5 is a block diagram of the power supply system according to the third embodiment.
In the figure: 10. a main power supply device; 20. a secondary power supply device; 30. a load; 40. an input power distribution unit; 50. a phase-shifting transformer; 60. a voltage regulating and rectifying unit; 70. a first power distribution unit; 80. a second power distribution unit; 90. a switch member; 901. a first switch; 902. a second switch; 100. a battery.
Detailed Description
The present invention will now be described in more detail with reference to the accompanying drawings, and it is to be understood that the following description of the present invention is made only by way of illustration and not by way of limitation with reference to the accompanying drawings. The various embodiments may be combined with each other to form other embodiments not shown in the following description.
Example one
The embodiment provides a power supply system of a data center, and aims to solve the problem that when an existing power supply system is damaged, corresponding loads stop running.
Specifically, referring to fig. 1, the data center power supply system includes a plurality of power supply apparatuses, one of which is denoted as a main power supply apparatus 10, and the remaining of which is denoted as a sub power supply apparatus 20, so that the number of the sub power supply apparatus 20 is at least one. It should be noted that the data center generally refers to a host storage environment having a large-scale site and machine room facilities, a high-speed and reliable internal and external network environment, and a systematic monitoring support means.
The main power supply device 10 and the auxiliary power supply device 20 can convert the commercial power into the voltage required by the load 30. The input end of the main power supply device 10 is connected with the mains supply, and the output end of the main power supply device is connected with the load 30, so that the load 30 is powered; the input end of the secondary power supply device 20 is connected with the commercial power, and the output end is connected with the load 30 through the switch element 90, so that the standby power supply to the load 30 is realized. The load 30 may be, but is not limited to, IT devices such as servers and network devices.
It is understood that the main power supply device 10 directly connected to the load 30 may be connected to other loads 30 through the switch member 90 to serve as the secondary power supply device 20 of other loads 30; conversely, the sub power supply device 20 may be directly connected to another load 30 to serve as the main power supply device 10 of the other load 30.
In summary, when the main power supply device 10 is operating normally, the main power supply device 10 supplies power to the load 30, and the secondary power supply device 20 can be disconnected from the load 30 by the switch 90; when the main power supply device 10 fails, one of the secondary power supply devices 20 is conducted with the load 30 by the switching element 90, and the corresponding secondary power supply device 20 supplies power to the load 30 at this time, so as to prevent the load 30 from being passively powered off and stopping running, thereby reducing loss.
Example two
The embodiment provides a power supply system of a data center, which is implemented on the basis of the first embodiment. Specifically, referring to fig. 2, the main power supply 10 and the sub power supply 20 each include a phase-shift transformer 50 and a voltage-regulating rectification unit 60.
The phase-shifting transformer 50 has an input terminal connected to the commercial power, and a first output terminal connected to the input terminal of the voltage-regulating rectifying unit 60, the output terminal of the voltage-regulating rectifying unit 60 of the main power supply device 10 outputs a DC voltage DC1 and is connected to the load 30, and the output terminal of the voltage-regulating rectifying unit 60 of the auxiliary power supply device 20 outputs a DC voltage DC1 and is connected to the load 30 via the switching element 90.
The voltage converted by the phase-shifting transformer 50 is alternating current AC1, the alternating current AC1 can obtain direct current voltage DC1 after passing through the voltage-regulating rectifying unit 60, the direct current voltage DC1 can be, but is not limited to, 240Vdc/336Vdc, and the direct current voltage DC1 can be changed by the transformation ratio of the phase-shifting transformer 50 according to actual requirements. It is understood that the voltage regulating and rectifying unit 60 can be integrated with the phase shifting transformer 50, or can be separately provided as a rectifying cabinet.
The phase-shifting transformer 50 can adopt a 24-pulse, 36-pulse, 48-pulse and 72-pulse power supply mode, and preferably uses 72-pulse power supply mode. Specifically, by adopting the 72-pulse phase-shifting transformer 50, the input harmonic current of the 10kV input side can be reduced, the input power factor of the 10kV side can be improved, and the quality of the input electric energy can be ensured.
In summary, the phase-shifting transformer 50 can directly convert the commercial power to a specific ac voltage through phase switching, and then transmit the voltage to the load 30 of the data center, so as to supply power to the load 30, and a conventional voltage reduction mode of a power frequency transformer is eliminated, so that the conversion frequency of the electric energy is reduced, the loss of the electric energy is reduced, and the power supply efficiency is improved.
Further, the switch element 90 includes a first switch 901, and the connection and disconnection between the first output terminal of the corresponding secondary power supply device 20 and the load 30 are realized by the connection and disconnection of the first switch 901. The first switch 901 is preferably provided between the output ends of the voltage-regulating rectifying units 60, that is, the first switch 901 is connected in series between the output end of the voltage-regulating rectifying unit 60 of the main power supply device 10 and the output end of the voltage-regulating rectifying unit 60 of the corresponding sub power supply device 20.
Since the output of the voltage-regulating rectifying unit 60 is the DC voltage DC1, and thus both ends of the first switch 901 have the same potential, the first switch 901 may be of a normally-closed type, that is, when the main power supply apparatus 10 supplies power to the load 30, the first switch 901 is closed, but when the main power supply apparatus 10 fails, the auxiliary power supply apparatus 20 directly supplies power to the load 30 through the first switch 901, so as to save the control action on the first switch 901.
It should be noted that the first switch 901 may adopt 2, 4, 8 segments to perform grouping, and output the grouping to the back-end load 30, which can ensure grouping management of the back-end load 30 and the battery 100, so that the system management is more precise and accurate.
Further, the main power supply device 10 and the auxiliary power supply device 20 each further include an input power distribution unit 40, an input end of the input power distribution unit 40 is connected to the commercial power, and an output end of the input power distribution unit 40 is connected to an input end of the corresponding phase-shifting transformer 50, optionally, the input power distribution unit 40 may be configured to convert the input commercial power into a specific ac voltage after power distribution processing, and then transmit the specific ac voltage to the phase-shifting transformer 50.
Further, the main power supply apparatus 10 further includes a first power distribution unit 70. The first power distribution unit 70 is connected between the voltage regulating and rectifying unit 60 of the main power supply apparatus 10 and the load 30, and the direct current voltage DC1 output from the voltage regulating and rectifying unit 60 of the main power supply apparatus 10 is distributed to the load 30 via the first power distribution unit 70. The second power distribution unit 80 may preferably be a dc cabinet. Preferably, the corresponding node of the first switch 901 is located between the voltage regulating and rectifying unit 60 of the main power supply device 10 and the first power distribution unit 70, so as to improve the stability of the voltage received by the load 30. It is noted that the secondary power supply device 20 may be provided with the first power distribution unit 70.
Further, the main power supply device 10 further includes a battery 100, and an input end of the first power distribution unit 70 is connected to the battery 100. The battery 100 may be a lead-acid battery 100 or a lithium battery 100 as long as power supply to the first power distribution unit 70 is realized. It should be noted that the secondary power supply device 20 may be provided with a battery 100.
In an alternative embodiment, referring to fig. 3, the phase-shifting transformer 50 of the main power supply 10 further has a second output terminal connected to the load 30 and outputting an AC voltage AC 2. Thus, the load 30 has the dc power supply of the main power supply device 10, the ac power supply of the main power supply device 10, and the dc power supply of the sub power supply device 20, so that the diversity and stability of the power supply form of the load 30 are increased.
Further, the switching element 90 comprises a second switch 902, and the phase-shifting transformer 50 of the secondary power supply 20 also has a second output terminal, which outputs the AC voltage AC2 and is connected to the load 30 via the second switch 902. The second output terminal of the secondary power supply device 20 is connected to the load 30 by the connection and disconnection of the second switch 902. The second switch 902 is preferably disposed between the second output terminals, that is, the first switch 901 is connected in series between the second output terminal of the main power supply device 10 and the second output terminal of the corresponding secondary power supply device 20.
Since the second output terminal is the AC voltage AC2, and the potentials at the two terminals of the second switch 902 are not equal, the second switch 902 may be a normally open type, that is, when the main power supply apparatus 10 supplies power to the load 30, the second switch 902 is turned off; however, when the output of the second output terminal of the main power supply device 10 is abnormal, the second switch 902 is closed, and the second output terminal of the auxiliary power supply device 20 supplies power to the load 30 via the second switch 902, so that the load 30 has dc power supply of the main power supply device 10, ac power supply of the main power supply device 10, main power supply of the auxiliary power supply device 20, and ac power supply of the auxiliary power supply device 20, thereby increasing the diversity and stability of the power supply form of the load 30.
Further, the main power supply apparatus 10 further includes a second power distribution unit 80. An input end of the second power distribution unit 80 is connected to a second output end of the main power supply device 10, and an output end of the second power distribution unit 80 is connected to the load 30. The alternating-current voltage AC2 at the second output of the main power supply 10 is distributed to the load 30 via the second power distribution unit 80. The second power distribution unit 80 may preferably be an ac cabinet. As a preferred solution, the node of the first switch 901 is located between the corresponding second output terminal and the first power distribution unit 70, so as to improve the stability of the voltage received by the load 30.
It is understood that the voltages of the first output terminal and the second output terminal of the main power supply 10 and the secondary power supply 30 may be the same or different, and the AC voltage AC2 output by the second output terminal is preferably 380Vac according to the actual situation of the data center.
EXAMPLE III
The embodiment provides a power supply system of a data center, which is implemented on the basis of the first embodiment. Specifically, referring to fig. 4, the main power supply 10 and the sub power supply 20 each include a phase-shift transformer 50.
The input of the phase-shifting transformer 50 is connected to the mains, and it also has a second output for outputting an AC voltage AC2, the second output of the main supply 10 being connected to the load 30, and the second output of the secondary supply 20 being connected to the load 30 via the switching element 90, so that the load 30 has an AC supply of the main supply 10 and an AC supply of the secondary supply 20.
The phase-shifting transformer 50 can adopt a 24-pulse, 36-pulse, 48-pulse and 72-pulse power supply mode, preferably uses 72-pulse, and particularly adopts a 72-pulse phase-shifting transformer 50, so that the input harmonic current of a 10kV input side can be reduced, the input power factor of the 10kV side can be improved, and the quality of input electric energy can be ensured.
To sum up, the phase-shifting transformer 50 can directly convert the commercial power into a specific alternating voltage through phase switching, and then transmits the voltage to the load 30 of the data center, so as to supply power to the load 30, and cancel the traditional voltage reduction mode of the power frequency transformer, so as to reduce the conversion times of the electric energy, reduce the loss of the electric energy, and further improve the power supply efficiency.
Further, the switch member 90 includes a second switch 902, and the second output terminal of the secondary power supply device 20 is connected to and disconnected from the load 30 by the connection and disconnection of the second switch 902. The second switch 902 is preferably disposed between the second output terminals, that is, the first switch 901 is connected in series between the second output terminal of the main power supply device 10 and the second output terminal of the corresponding secondary power supply device 20.
The second output terminal is the AC voltage AC2, so that the two terminals of the second switch 902 have different equipotentials, and the second switch 902 may be normally open, that is, when the main power supply apparatus 10 supplies power to the load 30, the second switch 902 is turned off; however, when the output of the second output terminal of the main power supply apparatus 10 is abnormal, the second switch 902 is closed, and the second output terminal of the sub power supply apparatus 20 supplies power to the load 30 through the second switch 902.
Further, the main power supply apparatus 10 further includes a second power distribution unit 80. The input of the second power distribution unit 80 is connected to the second output, and the output of the second power distribution unit 80 is connected to the load 30. The alternating-current voltage AC2 at the second output of the main power supply 10 is distributed to the load 30 via the second power distribution unit 80. The second power distribution unit 80 may preferably be an ac cabinet. As a preferred solution, the node of the first switch 901 is located between the corresponding second output terminal and the first power distribution unit 70, so as to improve the stability of the voltage received by the load 30.
Further, referring to fig. 5, the phase-shifting transformer 50 of the main power supply 10 further has a first output terminal, the main power supply 10 further includes a voltage-regulating rectifying unit 60, the first output terminal is connected to the output terminal of the voltage-regulating rectifying unit 60, and the voltage-regulating rectifying unit 60 can be connected to the load 30, so as to implement the dc input of the load 30.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.
Claims (10)
1. A power supply system of a data center is characterized by comprising a main power supply device and at least one auxiliary power supply device, wherein the input end of the main power supply device is connected with a mains supply, and the output end of the main power supply device is connected with a load; the input end of the auxiliary power supply device is connected with the mains supply, and the output end of the auxiliary power supply device is connected with the load through the switch piece; when the main power supply device fails, the corresponding auxiliary power supply device is controlled to supply power to the load through the switch piece.
2. The data center power supply system according to claim 1, wherein the primary power supply unit and each secondary power supply unit each include a phase-shifting transformer and a voltage-regulating rectifying unit, the phase-shifting transformer having a first output terminal connected to an input terminal of the voltage-regulating rectifying unit, and an output terminal of the voltage-regulating rectifying unit outputting a direct current voltage DC 1.
3. The data center power supply system of claim 2, wherein the switching element comprises a first switch connected between the outputs of the corresponding voltage regulating rectifier units.
4. The data center power supply system according to claim 2, wherein the main power supply device further includes a first power distribution unit that is connected between the voltage regulating and rectifying unit of the main power supply device and the load, and the direct current voltage DC1 of the main power supply device is distributed to the load via the first power distribution unit.
5. The data center power supply system of claim 4, wherein the primary power supply further comprises a battery, the battery being connected to the first power distribution unit.
6. The data center power supply system according to any one of claims 2 to 5, wherein the transition transformer of the main power supply further has a second output terminal connected to the load and outputting an AC voltage AC 2.
7. The data center power supply system of claim 6, wherein the phase shifting transformer of each secondary power supply also has a second output and is connected to the load via a second switch.
8. The data center power supply system of claim 7, wherein the main power supply further comprises a second power distribution unit connected between the second output of the main power supply and the load, the AC voltage AC2 at the second output of the main power supply being distributed to the load via the second power distribution unit.
9. The data center power supply system of claim 1, wherein the primary power supply and each secondary power supply each include a phase shifting transformer having a second output that outputs an alternating current voltage AC 2; the switch member includes a second switch connected between the corresponding second output terminals.
10. The data center power supply system of claim 9, wherein the main power supply further comprises a second power distribution unit connected between the second output of the main power supply and the load, the AC voltage AC2 at the second output of the main power supply being distributed to the load via the second power distribution unit.
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| CN202020271647.9U CN211908370U (en) | 2020-03-06 | 2020-03-06 | Data center power supply system |
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| CN202020271647.9U CN211908370U (en) | 2020-03-06 | 2020-03-06 | Data center power supply system |
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