CN202455149U - Power supply system for supplying electronic equipment and frame power supply - Google Patents

Power supply system for supplying electronic equipment and frame power supply Download PDF

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Publication number
CN202455149U
CN202455149U CN2011203751540U CN201120375154U CN202455149U CN 202455149 U CN202455149 U CN 202455149U CN 2011203751540 U CN2011203751540 U CN 2011203751540U CN 201120375154 U CN201120375154 U CN 201120375154U CN 202455149 U CN202455149 U CN 202455149U
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China
Prior art keywords
voltage
module
power supply
power
output
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Withdrawn - After Issue
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CN2011203751540U
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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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Abstract

The present utility model provides a power supply system for electronic equipment and a corresponding frame power supply. The power supply system comprises a reserve type high voltage DC power supply and the frame power supply, the input end of the reserve type high voltage DC power supply is high voltage AC input, the output end is high voltage DC output of a storage battery group, the reserve type high voltage DC power supply comprises rectification equipment and is used for charging storage batteries. The frame power supply comprises a first module for converting high voltage AC input into low voltage DC output, a second module for converting high voltage DC input into low voltage DC output, output ends of the first module and the second module are connected in parallel and output through a low voltage DC bus, and used for supplying a plurality of electronic equipment; and a controlling and switching device for controlling and switching the first and second modules, and when the high voltage AC is normal, the plurality of electronic equipment are supplied by the first module, and supplied by the second module when high voltage AC is cut off. Compared with the prior art, the power supply is high in efficiency, high in reliability and small in investments.

Description

A kind of electric power system and rack power supplies that is used for to power electronic equipment
Technical field
The utility model relates to the power supply field, relates in particular to a kind of power supply technology that is used for electronic equipment.
Background technology
The available data central server generally adopts the ups system power supply, and data center server is generally 1U or 2U structure, the power module of every station server configuration alternating current 220V or direct current 48V input, and power module can be by N, N+1 or 2N configuration.Corresponding with the server power supply input, server front end configuration ups power equipment or 48V high frequency switch power equipment.
In recent years, for reliability and the power supply conversion efficiency that improves the server electric power system, the domestic HVDC electric power system that UPS or 48V DC power supply have occurred replacing with high-voltage DC power supply (like DC240V); Occur cancellation ups power or 48V DC power supply abroad, simultaneously storage battery has been installed to the novel dispersed power supply system of server end.
The existing electric power system framework of data center server mainly can be divided into following four kinds:
(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 comprises mainly that at present the used power supply plan of power supply plan and Facebook company that Google company is used adopts; 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 server adopts 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, begin online HVDC power supply on probation in the industry, this system has reduced the inversion link, and it is about 5% to reduce loss, has also improved power supply reliability simultaneously greatly.
The external scheme of disperseing the backup type low-voltage DC supply that adopts, 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 server are installed with machine room and have been limited this development trend again at server, and therefore but this scheme relatively is fit to require low the higher lithium battery of expense to ambient temperature.
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 electric power system and corresponding rack power supplies that efficiently, reliably is used for electronic equipment.
An aspect according to the utility model provides a kind of system that is used for power electronic equipment, comprises the backup type high-voltage DC power supply, and rack power supplies, it is characterized in that:
The input of said backup type high-voltage DC power supply is a High Level AC Voltage, comprising:
Rectifying installation 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 is connected in parallel;
Said rack power supplies comprises:
The High Level AC Voltage input is converted into first module of low-voltage DC output;
To be converted into second module of low-voltage DC output from the high voltage direct current input of backup type high-voltage DC power supply, the output of said first, second module is connected in parallel, through a low-voltage direct bus output, with thinking the multiple electronic equipment power supply;
Control switch device is used for control and switches said first, second module, guarantees said High Level AC Voltage just often, and said multiple electronic equipment is had no progeny in the said High Level AC Voltage by said first kind module for power supply, by said second module for power supply.
According to the utility model on the other hand, a kind of rack power supplies to the multiple electronic equipment power supply is provided also, has it is characterized in that, having comprised:
The High Level AC Voltage input is converted into first module of low-voltage direct output;
The HVDC input is converted into second module that low-voltage direct is exported, and the output of said first, second module is connected in parallel, through a low-voltage direct bus output, with thinking the multiple electronic equipment power supply;
Control switch device is used for control and switches said first, second module, guarantees electric main just often, and said multiple electronic equipment is had no progeny in the electric main by said first module for power supply, by said second module for power supply.
Compared with prior art, it is high and invest little beneficial effect to the utlity model has efficient height, reliability.The utility model advantage is:
1. the high-voltage DC power supply capacity only needs battery charging, and the system as main usefulness compares with HVDC, has saved cost of equipment, has reduced this part loss simultaneously;
2. the raising of direct voltage makes power supply distance increase, batteries can centralized arrangement in independent battery room, carry out air conditioning separately, can save the whole air conditioning energy consumption of data center;
3. compare to the scheme of every station server with the battery decentralized configuration; Former scheme is owing to the life-span of server and storage battery has nothing in common with each other; Therefore improve the complexity of safeguarding and caused the equipment waste; And this programme is convenient to the batteries centralized arrangement plant maintenance and is improved usage ratio of equipment, has reduced the equipment purchase expense.
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 illustrates the system schematic that is used to power electronic equipment according to an aspect of the utility model.
Fig. 2 illustrates the system schematic that is used to the multiple servers power supply according to an instantiation of the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
Fig. 1 illustrates a kind of efficient, the reliable data center power electronic equipment system architecture according to an aspect of the utility model.As shown in Figure 1, high-voltage DC power supply 1 is concentrated with batteries 4 and is positioned in the electric power battery chamber, and rack power supplies module 5 and multiple electronic equipment are concentrated and be positioned in the machine room.Wherein, rack power supplies module 5 be multiple electronic equipment 9 (E1, E2 ...) and supply power, AC high voltage is just often directly supplied power by AC high voltage, has no progeny in the AC high voltage to change by batteries 4 stand-by power supplies.Wherein electronic equipment includes but not limited to server, computer, router, notebook computer etc.
The utility model preferred embodiment adopt to be shared the scheme of power supply, and it has absorbed the advantage of existing centralized and backup power simultaneously.Wherein the batteries centralized arrangement is in the battery chamber; Be positioned in the data machine room and multiple electronic equipment is concentrated; Because batteries is different to environment requirement with electronic equipment, therefore that electronic equipment and batteries is placed apart, reduce the complexity of safeguarding and practiced thrift cost.
Particularly, as shown in Figure 1, electric power system can be divided into two parts: be positioned at the backup type high-voltage DC power supply 1 of electronic equipment front end, and be used to the rack power supplies 5 that electronic equipment provides power supply.Wherein, multiple electronic equipment 9 front ends have high-voltage ac power and high-voltage DC power supply, and wherein high-voltage DC power supply can be realized in many ways, includes but not limited to:
1) form with batteries 4 provides, or;
2) High Level AC Voltage is provided through the formation that rectification is converted into HVDC.
Rack power supplies 5 be used to a plurality of electronic equipments 9 (E1, E2 ...) and power supply, it comprises that being divided into high-voltage alternating input imports two generic modules with HVDC, the low-voltage direct that every electronic equipment 9 is shared rack power supplies is exported.
The input of backup type high-voltage DC power supply 1 is the High Level AC Voltage input, and output is HVDC output, and it comprises:
Rectifying installation 2 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 4 is connected in parallel;
Rack power supplies 5 comprises: first module 6 that is used for the high-voltage alternating input is converted into low-voltage direct output; To be converted into second module 7 of low-voltage direct output from the high voltage direct current input of backup type high-voltage DC power supply 1; Wherein, The output of said first module 6, second module 7 is connected in parallel, through a low-voltage direct bus output, with thinking that multiple electronic equipment 9 supplies power;
Rack power supplies 5 also comprises control switch device 8; Be used for control and switch said first module 6, second module 7, guarantee said High Level AC Voltage just often, said multiple electronic equipment 9 is by 6 power supplies of said first module; Have no progeny in the said High Level AC Voltage, by 7 power supplies of said second module.
In a preferred embodiment, rectifying installation 2 also is used to battery charging, when High Level AC Voltage just often, said rectification module 2 is merely said batteries and carries out floating charge; After High Level AC Voltage had a power failure, batteries was said multiple electronic equipment 9 power supplies through said second module 7; Behind the High Level AC Voltage incoming call; 8 pairs first modules 6 of said control switch device and second module 7 are switched; Switch to first module, 6 power supplies by institute; Said multiple electronic equipment 9 changes by said first module 6 power supply, and said rectifying installation 2 carries out equalizing charge for batteries 4, goes to floating charge state after being 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.
In another preferred embodiment, in the said rack power supplies 5, said control switch device 8 can directly link to each other with first module 6, also can directly link to each other with second module 7.Said first module 6 or second module 7 be via 8 outputs of said control switch device, be connected in parallel with the output of corresponding another module, and through a low-voltage direct bus output, be that multiple electronic equipment 9 is supplied power simultaneously.
In another preferred embodiment, said backup type high-voltage DC power supply 1 also comprises monitoring module 3, is used for battery management and insulating monitoring, mainly accomplishes functions such as measurement, alarm, communication, battery management.
In another preferred embodiment, said rectification module 2 can adopt modularization hot plug mode, and its capacity only need satisfy batteries 4 chargings.
In another preferred embodiment, said rack power supplies 5 is installed in the data machine room, and batteries is installed concentratedly in the battery chamber.
In another preferred embodiment, the scope of high-voltage alternating includes but not limited to AC110V-AC400V, and the scope of HVDC includes but not limited to DC110V-DC400V, and the scope of low-voltage direct includes but not limited to DC12V-DC110V.
Fig. 2 shows another specific embodiment according to this aspect.This be embodied as to multiple servers 9 (1,2 ... N) power supply electric power system.System can be divided into two parts: be positioned at the backup type high-voltage DC power supply 1 of server front end, and be used to a plurality of servers 9 (1,2 ... N) rack power supplies 5 of power supply is provided.Wherein, Multiple servers 9 (1; 2 ... front end N) has High Level AC Voltage AC220V input and high voltage direct current to import, and wherein high voltage direct current provides with the form of batteries and/or so that High Level AC Voltage AC380V is provided through the formation that rectification module 2 is converted into high voltage direct current.Multiple servers self can be divided into high-voltage alternating input and HVDC and be imported two generic modules by rack power supplies 5 power supplies, and each server is shared the 12V low-voltage direct output of chassis level power supply.Rack power supplies can be installed in the data machine room, and batteries can be installed concentratedly in the battery chamber.
Particularly, the input of said backup type high-voltage DC power supply is HVDC output for High Level AC Voltage AC380V input, output, and it comprises:
Rectifying installation 2 is used for converting High Level AC Voltage AC380V input into high voltage direct current output, and the HVDC output of its output and batteries is connected in parallel;
Rack power supplies comprises: the category-A module 6 that is used for high-voltage alternating AC220V input is converted into the output of 12V low-voltage direct; To be converted into the category-B module 7 of 12V low-voltage direct output from the high voltage direct current input of backup type high-voltage DC power supply; The output of said category-A module 6, category-B module 7 is connected in parallel, through the output of 12V low-voltage direct bus, with thinking multiple servers 9 (1; 2 ... N) power supply;
Rack power supplies 5 also comprises control handover module 8, is used for control and switches said category-A module 6 and category-B module 7.Control handover module 8 can be specially a diode, and it is connected with category-B power module 7, when High Level AC Voltage AC220V just often, diode and 7 conductings of category-B power module end, at this moment by category-A power module 6 be multiple servers 9 (1,2 ... N) supply power; In High Level AC Voltage AC220V, have no progeny, diode and 7 conductings of category-B power module, this moment by category-B module 7 be multiple servers 9 (1,2 ... N) supply power.
In another preferred embodiment, rectification module 2 also is used to batteries 4 charging, when High Level AC Voltage AC380V just often, rectification module 2 is merely batteries 4 and carries out floating charge; After High Level AC Voltage AC380V has a power failure, batteries 4 through category-B module 7 be multiple servers 9 (1,2 ... N) supply power; Behind the High Level AC Voltage incoming call, the control handover module switches category-A module 6 and category-B module 7, and multiple servers 9 (1,2 ... N) change by 6 power supplies of category-A module, rectification module 2 carries out equalizing charge for batteries 4, goes to floating charge state after being full of.
In another preferred embodiment, backup type high-voltage DC power supply 1 can also comprise monitoring module 3, is used for battery management and insulating monitoring, mainly accomplishes functions such as measurement, alarm, communication, battery management.
In another preferred embodiment, rectification module 2 can also adopt modularization hot plug mode, and its capacity only need satisfy battery charging.
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 (9)

1. an electric power system that is used for to power electronic equipment comprises the backup type high-voltage DC power supply, and rack power supplies, wherein:
The input of said backup type high-voltage DC power supply is a High Level AC Voltage, comprising:
Rectifying installation 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 is connected in parallel;
Said rack power supplies comprises:
The High Level AC Voltage input is converted into first module of low-voltage DC output;
To be converted into second module of low-voltage DC output from the high voltage direct current input of backup type high-voltage DC power supply; The output of said first, second module is connected in parallel; Through a low-voltage direct bus output, wherein, with thinking the multiple electronic equipment power supply;
Control switch device is used for control and switches said first, second module, guarantees said High Level AC Voltage just often, and said a plurality of electronic equipments are had no progeny in the said High Level AC Voltage by said first kind module for power supply, by said second module for power supply.
2. electric power system according to claim 1, wherein, said rectifying installation also is used to battery charging, when High Level AC Voltage just often, said rectifying installation is merely said batteries and carries out floating charge; After High Level AC Voltage had a power failure, batteries was said a plurality of power electronic equipment through said second module; Behind the High Level AC Voltage incoming call, said control switch device is switched said first, second module, and said a plurality of electronic equipments change by said first module for power supply, and said rectifying installation is that batteries is carried out equalizing charge, goes to floating charge state after being full of.
3. electric power system according to claim 1 or claim 2, wherein, said backup type high-voltage DC power supply also comprises: monitoring module is used for battery management and insulating monitoring.
4. electric power system according to claim 1 or claim 2, wherein, said rectifying installation adopts modularization hot plug mode, and its capacity satisfies battery charging.
5. electric power system according to claim 1, wherein, said rack power supplies is installed in the data machine room, and said batteries is installed concentratedly in the battery chamber.
6. electric power system according to claim 1, wherein, said high-voltage alternating is AC110V-AC400V, and said HVDC is DC110V-DC400V, and said low-voltage direct is DC12V-DC110V.
7. rack power supplies that is used for to power electronic equipment wherein, comprising:
The High Level AC Voltage input is converted into first module of low-voltage direct output;
The HVDC input is converted into second module that low-voltage direct is exported, and the output of said first, second module is connected in parallel, through a low-voltage direct bus output, in order to supply power to multiple electronic equipment;
Control switch device is used for control and switches said first, second module, guarantees High Level AC Voltage just often, and said multiple electronic equipment is had no progeny in the electric main by said first module for power supply, by said second module for power supply.
8. like the said rack power supplies of claim 7, wherein, said rack power supplies is installed in the data machine room.
9. like the said rack power supplies of claim 7, wherein, said high-voltage alternating is AC110V-AC400V, and said HVDC is DC110V-DC400V, and said low-voltage direct is DC12V-DC110V.
CN2011203751540U 2011-09-30 2011-09-30 Power supply system for supplying electronic equipment and frame power supply Withdrawn - After Issue CN202455149U (en)

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Application Number Priority Date Filing Date Title
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102368631A (en) * 2011-09-30 2012-03-07 百度在线网络技术(北京)有限公司 Efficient and reliable power supply architecture of data center electronic 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
CN106160022A (en) * 2015-03-31 2016-11-23 积能环保电机工程科技有限公司 Direct current multivoltage electrical power trans mission/distribution system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102368631A (en) * 2011-09-30 2012-03-07 百度在线网络技术(北京)有限公司 Efficient and reliable power supply architecture of data center electronic 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
CN106160022A (en) * 2015-03-31 2016-11-23 积能环保电机工程科技有限公司 Direct current multivoltage electrical power trans mission/distribution system

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