CN102394510A - Efficient and reliable power supply architecture of data center information technology (IT) equipment - Google Patents
Efficient and reliable power supply architecture of data center information technology (IT) equipment Download PDFInfo
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- CN102394510A CN102394510A CN2011102970969A CN201110297096A CN102394510A CN 102394510 A CN102394510 A CN 102394510A CN 2011102970969 A CN2011102970969 A CN 2011102970969A CN 201110297096 A CN201110297096 A CN 201110297096A CN 102394510 A CN102394510 A CN 102394510A
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Abstract
The invention aims to provide a power supply system for data center information technology (IT) equipment. The system comprises a backup type high-voltage direct current power supply, a storage battery, an output distribution cabinet, a column head distribution cabinet and a frame power distribution unit, wherein the storage battery is connected with a direct current output bus of the backup type high-voltage direct current power supply; an input end of the backup type high-voltage direct current power supply is connected with three-phase alternating current, and an output end of the backup type high-voltage direct current power supply provides a power supply for the IT equipment through the output distribution cabinet, the column head distribution cabinet and the frame power distribution unit; and the backup type high-voltage direct current power supply comprises an alternating current and direct current conversion switch used for realizing conversion between three-phase alternating current output and storage battery high-voltage direct current power supply output. Compared with the prior art, the power supply system has the advantages of high efficiency and reliability, strong compatibility and small investment.
Description
Technical field
The present invention relates to the power supply field, relate 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 DC 12V 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.
Summary of the invention
The purpose of this invention is to provide a kind of efficient, reliable data center information technoloy equipment electric power system.
According to an aspect of the present invention, a kind of backup type high-voltage DC power supply is provided, 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 present invention, a kind of data center information technoloy equipment electric power system is provided also, has comprised 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, the present invention has the efficient height, reliability is high, by force compatible and invest little beneficial effect.The invention has the advantages that: the present invention 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 other features, objects and advantages of the present invention will become:
Fig. 1 shows the backup type high-voltage DC power supply according to one aspect of the invention;
Fig. 2 shows backup type high-voltage DC power supply according to a further aspect of the present invention;
Fig. 3 illustrates and is used to information technoloy equipment electric power system sketch map according to one aspect of the invention.
Embodiment
Below in conjunction with accompanying drawing 1-Fig. 3 the present invention is described in further detail.
Fig. 1 illustrates a kind of backup type high-voltage DC power supply 1 according to one aspect of the invention, 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 a further aspect of the present invention, 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 invention is not restricted to the details of above-mentioned example embodiment, and under the situation that does not deviate from spirit of the present invention or essential characteristic, can realize the present invention with other concrete form.Therefore; No matter from which point; All should regard embodiment as exemplary; And be nonrestrictive, scope of the present invention 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 present invention.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.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103683270A (en) * | 2013-12-26 | 2014-03-26 | 联方云天科技(北京)有限公司 | Managing method for networked distributed high-voltage DC power supply |
| CN103715763A (en) * | 2014-01-20 | 2014-04-09 | 中塔新兴通讯技术有限公司 | Energy-saving power supply system for IDC (internet data center) machine room |
| CN105098928A (en) * | 2015-09-16 | 2015-11-25 | 上海船舶研究设计院 | Marine charge and discharge board |
| US9203238B2 (en) | 2013-03-06 | 2015-12-01 | Huawei Technologies Co., Ltd. | Power supply method and apparatus |
| CN107171199A (en) * | 2017-07-13 | 2017-09-15 | 郑州云海信息技术有限公司 | A kind of container-type data center and its method of supplying power to |
| 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 |
| CN111463892A (en) * | 2020-04-14 | 2020-07-28 | 卢敏 | Novel alternating current-direct current mixed supply type uninterruptible power supply structure, device and method |
| CN112103938A (en) * | 2020-10-10 | 2020-12-18 | 北京百度网讯科技有限公司 | Power supply architecture, method and system based on HVDC equipment |
| US10958098B1 (en) | 2019-10-07 | 2021-03-23 | Google Llc | UPS system for powering alternating and direct current loads |
| CN114284884A (en) * | 2021-10-20 | 2022-04-05 | 镇江慧桥电气有限公司 | High-voltage power supply with real-time state display |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101599641A (en) * | 2009-07-16 | 2009-12-09 | 中国电信股份有限公司 | Utilize the system and method for high voltage direct current to the communication equipment power supply |
| CN101718825A (en) * | 2009-12-18 | 2010-06-02 | 北京世纪互联宽带数据中心有限公司 | Testing method of low-voltage power supply and distribution system of data center |
| CN101888112A (en) * | 2009-05-15 | 2010-11-17 | 加弘科技咨询(上海)有限公司 | Power system provided with stand-by power |
| CN201742146U (en) * | 2010-06-01 | 2011-02-09 | 上海金曜电子工程有限公司 | Special precision power distribution system for machine room based on integrated design |
| CN202353297U (en) * | 2011-09-30 | 2012-07-25 | 百度在线网络技术（北京）有限公司 | Data center IT device power supply system and standby high voltage DC power supply |
-
2011
- 2011-09-30 CN CN2011102970969A patent/CN102394510A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101888112A (en) * | 2009-05-15 | 2010-11-17 | 加弘科技咨询(上海)有限公司 | Power system provided with stand-by power |
| CN101599641A (en) * | 2009-07-16 | 2009-12-09 | 中国电信股份有限公司 | Utilize the system and method for high voltage direct current to the communication equipment power supply |
| CN101718825A (en) * | 2009-12-18 | 2010-06-02 | 北京世纪互联宽带数据中心有限公司 | Testing method of low-voltage power supply and distribution system of data center |
| CN201742146U (en) * | 2010-06-01 | 2011-02-09 | 上海金曜电子工程有限公司 | Special precision power distribution system for machine room based on integrated design |
| CN202353297U (en) * | 2011-09-30 | 2012-07-25 | 百度在线网络技术（北京）有限公司 | Data center IT device power supply system and standby high voltage DC power supply |
Non-Patent Citations (3)
| Title |
|---|
| 朱雄世: "数据通信电源现状和高压直流供电新系统", 《2008通信电源学术研讨会论文集》 * |
| 郭武: "高压直流供电系统取代UPS供电系统的探讨", 《2008通信电源学术研讨会论文集》 * |
| 魏晓炜 等: "交流塑料外壳式断路器应用于直流系统", 《电气时代》 * |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9954369B2 (en) | 2013-03-06 | 2018-04-24 | Huawei Technologies Co., Ltd. | Power supply method and apparatus |
| US9203238B2 (en) | 2013-03-06 | 2015-12-01 | Huawei Technologies Co., Ltd. | Power supply method and apparatus |
| CN103683270B (en) * | 2013-12-26 | 2016-01-20 | 联方云天科技(北京)有限公司 | A kind of distributive high-voltage direct current power supply management method of networking |
| CN103683270A (en) * | 2013-12-26 | 2014-03-26 | 联方云天科技(北京)有限公司 | Managing method for networked distributed high-voltage DC power supply |
| CN103715763A (en) * | 2014-01-20 | 2014-04-09 | 中塔新兴通讯技术有限公司 | Energy-saving power supply system for IDC (internet data center) machine room |
| CN103715763B (en) * | 2014-01-20 | 2016-02-03 | 中塔新兴通讯技术集团有限公司 | The system that IDC machine room energy-saving is powered is provided |
| CN105098928A (en) * | 2015-09-16 | 2015-11-25 | 上海船舶研究设计院 | Marine charge and discharge board |
| CN107171199A (en) * | 2017-07-13 | 2017-09-15 | 郑州云海信息技术有限公司 | A kind of container-type data center and its method of supplying power to |
| 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 |
| CN109936127B (en) * | 2019-04-23 | 2021-08-13 | 北京百度网讯科技有限公司 | Power distribution method, device, equipment and system of data center |
| US10958098B1 (en) | 2019-10-07 | 2021-03-23 | Google Llc | UPS system for powering alternating and direct current loads |
| CN111463892A (en) * | 2020-04-14 | 2020-07-28 | 卢敏 | Novel alternating current-direct current mixed supply type uninterruptible power supply structure, device and method |
| CN112103938A (en) * | 2020-10-10 | 2020-12-18 | 北京百度网讯科技有限公司 | Power supply architecture, method and system based on HVDC equipment |
| CN114284884A (en) * | 2021-10-20 | 2022-04-05 | 镇江慧桥电气有限公司 | High-voltage power supply with real-time state display |
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Application publication date: 20120328 |