CN202353297U - Data center IT device power supply system and standby high voltage DC power supply - Google Patents

Data center IT device power supply system and standby high voltage DC power supply Download PDF

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Publication number
CN202353297U
CN202353297U CN2011203795568U CN201120379556U CN202353297U CN 202353297 U CN202353297 U CN 202353297U CN 2011203795568 U CN2011203795568 U CN 2011203795568U CN 201120379556 U CN201120379556 U CN 201120379556U CN 202353297 U CN202353297 U CN 202353297U
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CN
China
Prior art keywords
power supply
voltage
output
batteries
backup type
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Expired - Lifetime
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CN2011203795568U
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Chinese (zh)
Inventor
李孝众
张炳华
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Baidu Online Network Technology Beijing Co Ltd
Beijing Baidu Netcom Science and Technology Co Ltd
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Beijing Baidu Netcom Science and Technology Co Ltd
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Priority to CN2011203795568U priority Critical patent/CN202353297U/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20End-user application control systems

Abstract

The utility model aims to provide a data center IT device power supply system and a standby high-voltage DC power supply. The system comprises the standby high-voltage DC power supply, a storage battery, an output distribution cabinet, an array distribution cabinet and a frame work distribution unit, wherein the storage battery is connected with a DC output bus of the standby high-voltage DC power supply; the input end of the standby high-voltage DC power supply is connected with three-phase AC, and the output end of the standby high-voltage DC input end powers the IT device via the output distribution cabinet, the array distribution cabinet and the frame work distribution unit; the standby high-voltage DC power supply comprises an AC/DC converting switch used for converting three-phase AC output and storage battery high-voltage DC power supply output. Compared with the prior art, the utility model has the advantages of high efficiency, reliability and compatibility, and small investment.

Description

A kind of data center information technoloy equipment electric power system and backup type high-voltage DC power supply
Technical field
The utility model relates to the power supply field, relates in particular to a kind of data center's information technoloy equipment power supply technology that is used for.
Background technology
Available data center information technoloy equipment generally adopts the ups system power supply, and current supply loss is big, and reliability is low.Information technoloy equipment generally adopts the alternating current 220V power supply, and small number of devices adopts power supplies such as direct current 48V, 240V, and at present, information technoloy equipment electric power system framework mainly contains following four kinds in the data center:
(1) on line type UPS electric power system;
This system uses the widest in the available data center, and its nucleus equipment is two conversion on line type UPS power supplys, and in order to reduce cost, ups system adopts centralized power supply system usually, and its characteristics comprise:
1. system configuration: ups power is made up of rectifier, inverter, control circuit and bypass circuit, and storage battery is connected on the dc bus between rectifier and inverter.In order to improve the reliability of unit, UPS forms N+1 parallel redundancy mode usually.
2. operational mode: just often electric main is an electric after rectification and inversion, behind the mains failure by storage battery through inverter power supply, behind the fault of converter by civil power through bypass power supply.
3. pluses and minuses: the advantage of this system be can the filtering civil power problems such as spike, overvoltage, can guarantee that civil power and battery powered switching time are zero simultaneously; Because the UPS complex structure, power supply is through 2 conversion simultaneously, so its shortcoming is that reliability is low, loss big (generally between 8%-25%).
(2) online 48V DC power-supply system;
Online 48V direct current supply pattern maturation already is applied in the communications industry, because the data equipment power consumption is more much bigger than conventional communication device, therefore generally adopts diversified power supply system in data center.The characteristics of this system comprise:
1. system configuration: compare with UPS, it has cancelled inverter, and storage battery directly hangs over rectifier output end, is to improve reliability, and rectification module adopts parallel way usually; Server adopts the 48V direct-current input power supplying.
2. operational mode: just often electric main after the DC power supply rectification for load provides DC power supply, behind the mains failure by storage battery power supply.
3. pluses and minuses: its advantage is system's mature and reliable; Its shortcoming is that system voltage is lower, and transmission range is limited, and loss is bigger.
(3) online HVDC (like DC240V) electric power system;
This system also is in experimental stage at present, and not in data center's large-scale application, its characteristics comprise:
1. system configuration: the power supply structure is with concentrating online HVDC power supply unit; Server adopts conventional AC 220V input power supply, can the direct current input within the specific limits of compatible voltage.
2. operational mode: just often electric main is that load provides DC power supply through rectification, behind the mains failure by storage battery power supply.
3. pluses and minuses: its advantage is than ups system reliability and efficient raising to be arranged all; Its shortcoming is bigger than the loss of backup type low-voltage DC supply system, and the power-supply device configuration capacity is big.
(4) backup type low-voltage direct (DC48V or DC12V) electric power system.
This system mainly comprises the used power supply plan of power supply plan and Facebook company that Google company is used at present; Wherein the power supply plan of Google adopts DC12V voltage (being called for short " DC12V scheme "), and the Facebook scheme adopts DC48V voltage (being called for short " DC48V scheme ").The characteristics of this system comprise:
1. system configuration: this system is distributed to the data machine room with power-supply device, and wherein to every station server, front end no longer is provided with other power-supply devices to the DC12V scheme with the 12V cell arrangement; In the DC48V scheme, every station server power supply has two inputs, and the one, the electric main input, the 2nd, direct current 48V input, server front end is established the storage battery frame, and a storage battery frame (containing charging rectifier) is that 6 server racks are made back-up source.
2. operational mode: just often electric main directly gets into the information technoloy equipment power supply, behind the mains failure, switches to 12V or 48V storage battery power supply.
3. pluses and minuses: its advantage running efficiency of system is high; Its shortcoming is that batteries is disperseed machine room, has improved the building environment requirement.
At present, most of data center information technoloy equipment adopts concentrates online ups system power supply, and civil power is through over commutation, twice conversion of inversion; Loss generally reaches 10%-15%; In addition, receive structural limitations, the power supply reliability of ups system is lower; Improve redundant (like 2N) though can improve reliability, also increased power-supply device investment and loss simultaneously.
In recent years, some companies concentrated online HVDC power supply on probation, and this system has reduced the inversion link, and it is about 5% to reduce loss, has also improved power supply reliability simultaneously greatly.
Also have some companies to adopt and disperse the backup type low-voltage DC supply, its outstanding advantage is to have improved entire system efficient greatly.This system all disperses to be installed to the data machine room with power-supply device and battery; Main problem is: storage battery is different to environment requirement with server; Particularly lead acid accumulator receives the influence of environment bigger; Under the background of high temperature development, lead-acid battery and information technoloy equipment are installed with machine room and have been limited this development trend again at information technoloy equipment, and therefore but this scheme relatively is fit to require low the higher lithium battery of expense to ambient temperature.In addition, this scheme also has special envoy's requirement to the information technoloy equipment power supply, can not adopt multiple power source.
In sum, in the existing power supply framework of data center server, UPS power supply plan reliability is low, loss is big; 48V direct current supply scheme transmission range is short, loss is big; HVDC scheme reliability and loss are all moderate; Backup type low-voltage DC supply scheme is most effective in existing scheme, but having relatively high expectations to building environment.
The utility model content
The purpose of the utility model provides a kind of data center information technoloy equipment electric power system and backup type high-voltage DC power supply.
An aspect according to the utility model provides a kind of backup type high-voltage DC power supply, wherein, said backup type high-voltage DC power supply input termination three-phase alternating current, the direct current output bus of backup type high-voltage DC power supply is connected with batteries;
Said backup type high-voltage DC power supply comprises:
AC-DC conversion switch is used to realize the conversion of three-phase alternating current output and the output of batteries high-voltage DC power supply.
According to another aspect of the utility model, a kind of data center information technoloy equipment electric power system also is provided, comprise backup type high-voltage DC power supply, batteries, output distribution cabinet, a row power distribution cabinet and chassis power distribution unit, wherein:
Said batteries is connected with the direct current output bus of backup type high-voltage DC power supply;
Said backup type high-voltage DC power supply input termination three-phase alternating current, output is that information technoloy equipment provides power supply through output distribution cabinet, first cabinet of each row and chassis power distribution unit, said backup type high-voltage DC power supply comprises:
AC-DC conversion switch is used to realize the conversion of three-phase alternating current output and the output of batteries high-voltage DC power supply.
Compared with prior art, it is high, compatible strong and invest little beneficial effect to the utlity model has efficient height, reliability.The advantage of the utility model is: the utility model has absorbed centralized and advantage backup power; The batteries centralized arrangement is directly supplied power by civil power when system normally moves in the battery chamber, efficient high (not having the loss of UPS, HVDC lamp power-supply device); The information technoloy equipment power supply need not specific customization; In addition, the configuration of rectification module only need be satisfied charge in batteries, so the investment of power-supply device significantly reduces.
Description of drawings
Through reading the detailed description of doing with reference to following accompanying drawing that non-limiting example is done, it is more obvious that the other features, objects and advantages of the utility model will become:
Fig. 1 shows the backup type high-voltage DC power supply according to an aspect of the utility model;
Fig. 2 shows the backup type high-voltage DC power supply according to another aspect of the utility model;
Fig. 3 illustrates and is used to information technoloy equipment electric power system sketch map according to an aspect of the utility model.
Embodiment
Below in conjunction with accompanying drawing 1-Fig. 3 the utility model is described in further detail.
Fig. 1 illustrates a kind of backup type high-voltage DC power supply 1 according to an aspect of the utility model, and it comprises AC-DC conversion switch 2 and batteries 3.
Particularly, backup type high-voltage DC power supply 1 input termination three-phase alternating current, the direct current output bus of backup type high-voltage DC power supply 1 is connected with batteries 3; AC-DC conversion switch 2 ac input ends connect the three-phase alternating current input, and direct-flow input end is connected with the direct current output bus and the batteries 3 of backup type high-voltage DC power supply 1.
AC-DC conversion switch 2 is used to realize the conversion of three-phase alternating current output and the output of batteries 3 high-voltage DC power supplies.When three-phase alternating current just often, the AC side conducting of AC-DC conversion switch, backup type high-voltage DC power supply 1 output AC power source; When three-phase alternating current stopped, to DC side, this moment, backup type high-voltage DC power supply 1 was by batteries 3 output DC sources in the 10ms intra for AC-DC conversion switch.
In a preferred embodiment, backup type high-voltage DC power supply 1 can also comprise rectification module 4.As shown in Figure 2, backup type high-voltage DC power supply 1 input termination three-phase alternating current, its direct current output bus is connected with batteries 3.
AC-DC conversion switch 2 ac input ends directly link to each other with three-phase alternating current after static bypass, and its direct current input may be implemented in a variety of ways, and includes but not limited to:
1) import with the form of batteries 3, or;
2) three-phase alternating current is imported through the form that rectification module 4 is converted into direct current.
Rectification module 4 is used to 3 chargings of institute's batteries; When alternating current just often, the AC side conducting of AC-DC conversion switch 2, backup type high-voltage DC power supply 1 output AC power source, alternating current also through rectification module 4 be batteries 3 floating charges; After the ac outage; Said AC-DC conversion switch 2 switches to DC side; Backup type high-voltage DC power supply 1 is by batteries 3 output DC sources at this moment, and behind the alternating current incoming call, change over switch switches back ac-powered; Carry out equalizing charge through rectification module 4 for batteries 3 simultaneously, go to floating charge after battery is full of.
This:
" floating charge " refers to a kind of continuous, long constant voltage charging method; System can provide the constant voltage a little more than accumulator voltage, is enough to compensate storage battery self discharge loss and storage battery is returned near complete charged state.
" equalizing charge " is meant in the use of storage battery; Because reasons such as the individual difference of storage battery, temperature contrast cause battery terminal voltage uneven; For fear of the deterioration of this uneven trend, thereby the charging voltage of raising batteries is carried out the activation charging to storage battery.
As shown in Figure 2, in a further advantageous embodiment, backup type high-voltage DC power supply 1 can also comprise monitoring module 5, be used to control AC-DC conversion and open 2 carrying out alternating current-direct current output switching controls, and battery management.
In a preferred embodiment; AC-DC conversion switch 2 can adopt three utmost point change over switches, exchanges A, B, C three-phase entering change over switch, and the direct current cathode bus bar is divided into three sections and gets into change over switches; Exchanging N row directly is connected with the direct-flow positive pole busbar; Get into the output distribution cabinet without switching device, exchange N row also through exchange introduce the N line at civil power main distribution cabinet place ground connection, also realize direct-flow positive pole ground connection simultaneously.
Fig. 3 illustrates a kind of data center information technoloy equipment electric power system according to another aspect of the utility model, and it comprises backup type high-voltage DC power supply 1, output distribution cabinet 6, first cabinet of each row 7, chassis power distribution unit 8 and batteries 3.Wherein, information technoloy equipment includes but not limited to equipment such as computer, server, router.
Particularly; The direct current output bus of backup type high-voltage DC power supply 1 is connected with batteries 3; Backup type high-voltage DC power supply 1 input termination three-phase alternating current, output provides alternating-current power supply through output distribution cabinet 6, first cabinet of each row 7 and chassis power distribution unit 8 for information technoloy equipment.
As shown in Figure 3, backup type high-voltage DC power supply 1 comprises:
AC-DC conversion switch 2 is used to realize the conversion of three-phase alternating current output and the output of batteries 3 high-voltage DC power supplies.Its input divides two-way directly to link to each other with the high voltage direct current of three-phase alternating current with batteries 3 outputs respectively, and output connects the input of output distribution cabinet 2;
Monitoring module 5 is used to control AC-DC conversion switch 2 to carry out alternating current-direct current output switching controls and battery management;
Rectification module 4 is used for converting the High Level AC Voltage input into high voltage direct current output, and the HVDC output of its output and batteries 3 is connected in parallel; Also be used to batteries 3 chargings simultaneously;
Particularly, when alternating current just often, the AC side conducting of AC-DC conversion switch 2, through output distribution cabinet 6, first cabinet of each row 7 and chassis power distribution unit 8 for information technoloy equipment provides alternating-current power supply, alternating current also through rectification module 4 be batteries 3 floating charges; After the ac outage; AC-DC conversion switch 2 switches to DC side; For information technoloy equipment provides alternating-current power supply, behind the alternating current incoming call, AC-DC conversion switch 2 switches back ac-powered to batteries 3 through output distribution cabinet 6, first cabinet of each row 7 and chassis power distribution unit 8 at this moment; Carry out equalizing charge through rectification module 4 for batteries 3 simultaneously, go to floating charge after battery is full of.
In a further advantageous embodiment, the inlet wire in the first cabinet of each row 7 can adopt three-pole isolator; Be output as single-phase output, can adopt miniature circuit breaker;
Chassis power distribution unit 8 can adopt miniature circuit breaker, perhaps adopts the GB socket;
AC-DC conversion switch 2 can adopt three utmost point change over switches; Exchange A, B, C three-phase entering change over switch; The direct current cathode bus bar is divided into three sections and gets into change over switch, exchanges N row and directly is connected with the direct-flow positive pole busbar, gets into the output distribution cabinet without switching device; Exchange N row also through exchange introduce the N line at civil power main distribution cabinet place ground connection, also realize direct-flow positive pole ground connection simultaneously;
N line (also the being electrode line simultaneously) cross section that exports 7 of first cabinets of each row from backup type high-voltage DC power supply 1 to should be 3 times of phase cross-sectional area.First cabinet of each row 7 adopts single-phase output, so N line and live wire (corresponding electrode line and negative line) are conventional uiform section.
To those skilled in the art, obviously the utility model is not limited to the details of above-mentioned example embodiment, and under the situation of spirit that does not deviate from the utility model or essential characteristic, can realize the utility model with other concrete form.Therefore; No matter from which point; All should regard embodiment as exemplary; And be nonrestrictive, the scope of the utility model is limited accompanying claims rather than above-mentioned explanation, therefore is intended to the implication of the equivalents that drops on claim and all changes in the scope are included in the utility model.Should any Reference numeral in the claim be regarded as limit related claim.In addition, obviously other unit or step do not got rid of in " comprising " speech, and odd number is not got rid of plural number.A plurality of unit of stating in the device claim or device also can be realized through software or hardware by a unit or device.The first, the second word such as grade is used for representing title, and does not represent any specific order.

Claims (11)

1. backup type high-voltage DC power supply, wherein, said backup type high-voltage DC power supply input termination three-phase alternating current, the direct current output bus of backup type high-voltage DC power supply is connected with batteries;
Said backup type high-voltage DC power supply comprises:
AC-DC conversion switch is used to realize the conversion of three-phase alternating current output and the output of batteries high-voltage DC power supply.
2. backup type high-voltage DC power supply as claimed in claim 1 wherein, also comprises: rectification module is used to said battery charging;
When alternating current just often, the AC side conducting of AC-DC conversion switch is that information technoloy equipment provides alternating-current power supply through output distribution cabinet, first cabinet of each row and chassis power distribution unit, alternating current is the batteries floating charge through rectification module also; After the ac outage; Said AC-DC conversion switch switches to DC side; This moment, batteries was that information technoloy equipment provides DC power supply through output distribution cabinet, first cabinet of each row and chassis power distribution unit, and behind the alternating current incoming call, said change over switch switches back ac-powered; Be that batteries is carried out equalizing charge through rectification module simultaneously, go to floating charge after battery is full of.
3. according to claim 1 or claim 2 backup type high-voltage DC power supply, wherein, said backup type DC power supply also comprises: monitoring module is used for alternating current-direct current output switching controls and battery management.
4. backup type high-voltage DC power supply as claimed in claim 1; Wherein, Said AC-DC conversion switch adopts three utmost point change over switches, exchanges A, B, C three-phase entering change over switch, and the direct current cathode bus bar is divided into three sections and gets into change over switches; Exchange N row and directly be connected, get into the output distribution cabinet without switching device with the direct-flow positive pole busbar.
5. data center's information technoloy equipment electric power system comprises backup type high-voltage DC power supply, batteries, output distribution cabinet, a row power distribution cabinet and chassis power distribution unit, wherein:
Said batteries is connected with the direct current output bus of backup type high-voltage DC power supply;
Said backup type high-voltage DC power supply input termination three-phase alternating current, output is that information technoloy equipment provides power supply through output distribution cabinet, first cabinet of each row and chassis power distribution unit, said backup type high-voltage DC power supply comprises:
AC-DC conversion switch is used to realize the conversion of three-phase alternating current output and the output of batteries high-voltage DC power supply.
6. electric power system as claimed in claim 5, wherein, said backup type high-voltage DC power supply also comprises: rectification module is used to said battery charging;
When alternating current just often, the AC side conducting of AC-DC conversion switch is that information technoloy equipment provides alternating-current power supply through output distribution cabinet, first cabinet of each row and chassis power distribution unit, alternating current is the batteries floating charge through rectification module also; After the ac outage; Said AC-DC conversion switch switches to DC side; This moment, batteries was that information technoloy equipment provides DC power supply through output distribution cabinet, first cabinet of each row and chassis power distribution unit, and behind the alternating current incoming call, said change over switch switches back ac-powered; Be that batteries is carried out equalizing charge through rectification module simultaneously, go to floating charge after battery is full of.
7. like claim 5 or 6 described electric power systems, wherein, said backup type DC power supply also comprises: monitoring module is used for alternating current-direct current output switching controls and battery management.
8. electric power system as claimed in claim 5, wherein, said output distribution cabinet comprises three-pole isolator fuse group or circuit breaker.
9. electric power system as claimed in claim 5, wherein, the inlet wire in the said first cabinet of each row adopts three-pole isolator; Be output as single-phase output, adopt miniature circuit breaker.
10. electric power system as claimed in claim 5, wherein, said chassis power distribution unit adopts miniature circuit breaker, perhaps adopts the GB socket.
11. electric power system as claimed in claim 5; Wherein, Said AC-DC conversion switch adopts three utmost point change over switches, exchanges A, B, C three-phase entering change over switch, and the direct current cathode bus bar is divided into three sections and gets into change over switches; Exchange N row and directly be connected, get into the output distribution cabinet without switching device with the direct-flow positive pole busbar.
CN2011203795568U 2011-09-30 2011-09-30 Data center IT device power supply system and standby high voltage DC power supply Expired - Lifetime CN202353297U (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102394510A (en) * 2011-09-30 2012-03-28 百度在线网络技术(北京)有限公司 Efficient and reliable power supply architecture of data center information technology (IT) equipment
CN103023131A (en) * 2012-11-14 2013-04-03 北京百度网讯科技有限公司 Direct-current power supply system of data center
US9203238B2 (en) 2013-03-06 2015-12-01 Huawei Technologies Co., Ltd. Power supply method and apparatus
CN109936127A (en) * 2019-04-23 2019-06-25 北京百度网讯科技有限公司 Distribution method, device, equipment and the system of data center
WO2021082303A1 (en) * 2019-10-28 2021-05-06 北京秦淮数据有限公司 Power distribution system

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102394510A (en) * 2011-09-30 2012-03-28 百度在线网络技术(北京)有限公司 Efficient and reliable power supply architecture of data center information technology (IT) equipment
CN103023131A (en) * 2012-11-14 2013-04-03 北京百度网讯科技有限公司 Direct-current power supply system of data center
CN103023131B (en) * 2012-11-14 2016-04-20 北京百度网讯科技有限公司 A kind of data center DC power-supply system
US9203238B2 (en) 2013-03-06 2015-12-01 Huawei Technologies Co., Ltd. Power supply method and apparatus
US9954369B2 (en) 2013-03-06 2018-04-24 Huawei Technologies Co., Ltd. Power supply method and apparatus
CN109936127A (en) * 2019-04-23 2019-06-25 北京百度网讯科技有限公司 Distribution method, device, equipment and the system of data center
WO2021082303A1 (en) * 2019-10-28 2021-05-06 北京秦淮数据有限公司 Power distribution system

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Granted publication date: 20120725