CN103490492A - High-voltage direct-current power supply system - Google Patents
High-voltage direct-current power supply system Download PDFInfo
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- CN103490492A CN103490492A CN201310381629.0A CN201310381629A CN103490492A CN 103490492 A CN103490492 A CN 103490492A CN 201310381629 A CN201310381629 A CN 201310381629A CN 103490492 A CN103490492 A CN 103490492A
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Abstract
The invention provides a novel off-line type high-voltage direct-current power supply system structure used in a data center. The novel system structure is characterized in that electric direct supply and a high-voltage direct-current complete-off-line mode are used in novel structure IT equipment, efficiency is higher than that of a traditional high-voltage direct-current on-line mode; a standby rectifier cubice is added to a load direct-current bus and is shared by subsystems, system reliability is greatly improved with low investment; using of a rectifier module is lowered through the off-line mode, system efficiency is improved, investment cost is lowered; a storage battery pack is connected with a load through a diode, the advantages of natural follow current and biasing reversal cut-off of the diode are used, manual switch control is of no need, and automatic separation of a power supply set and the standby rectifier cubice can be achieved. In general, the novel power supply structure has the advantages of being practical, high in reliability, efficient and low in investment.
Description
Technical field
The present invention relates to power technique fields, relate in particular to a kind of high voltage direct current electric power system.
Background technology
In existing data center, usually use UPS(Uninterruptible Power System, uninterrupted power supply) be main power supply unit, but this equipment exists, conversion efficiency is low, Harmonics of Input is large, reliability is low, the high in cost of production shortcoming.Under this background, HVDC(High-Voltage Direct Current, high voltage direct current transmission) technology enters people's the visual field, and moves to maturity gradually.
At present, the supply power voltage of domestic high voltage dc transmission technology main flow is 240V, the framework form of this power supply technique is, use rectifier output and storage battery output to receive on same DC bus, by the realization of direct current supply control system to the power supply of bearing power with to the management of charging and discharging of batteries.For example, as shown in Figure 1, current high-voltage direct current is comprised of rectifier cubice and direct current cabinet, and the rectification module output-parallel is articulated on DC bus, after the direct current cabinet distribution, is load supplying.When high voltage direct current electric power system normal power supply, rectification module is born whole power stages, and storage battery is in floating charge state; When high voltage direct current electric power system fault, storage battery is load supplying by the direct current supply bus of direct current cabinet.
Yet there is following problem in existing high voltage dc transmission technology:
1), high-voltage direct current is generally line model, rectification module can the produce power loss, causes the Efficiency Decreasing of entire system;
2), the capacity configuration of rectification module is generally maximal workload and the battery charging desired volume of load, therefore causes a plurality of rectification modules need to be set, input cost is very high;
3), the online charging/discharging function of storage battery can't be used in off-line mode at present.
Summary of the invention
The present invention is intended at least solve the problems of the technologies described above.
For this reason, first purpose of the present invention is to propose a kind of high voltage direct current electric power system.This system have efficiency high, produce to drop into low, reliability is high, operate advantage quickly and easily.
To achieve these goals, the high voltage direct current electric power system of first aspect present invention embodiment comprises: a plurality of loads; Be respectively the civil power direct-furnish bus of described a plurality of load supplyings; Be respectively a plurality of sub-electric power system of described a plurality of load supplyings, each described sub-electric power system further comprises: the first rectifier cubice, and described the first rectifier cubice comprises at least one rectification module, an end of described the first rectifier cubice is connected with ac bus; The first switch that the first batteries is connected with described the first batteries with an end; The first diode, the anode of described the first diode is connected with the other end of described the first switch with described the first rectifier cubice; The load DC bus, described load is connected with the negative electrode of described the first diode with DC bus, and described load is load supplying corresponding to described sub-electric power system with DC bus; The first power-supply controller, described the first power-supply controller is connected with described the first switch, and it is that described load is with DC bus powered that described the first power-supply controller is controlled described the first switch; And the standby commutation system that is respectively described a plurality of sub-electric power system power supplies.
At least there is following advantage in high voltage direct current electric power system according to the embodiment of the present invention:
1) adopt the scheme of civil power direct-furnish, high voltage direct current power supply off-line mode, power supplying efficiency is all higher than traditional high voltage direct current line model power supply plan;
2) add standby rectifier cubice on the load DC bus, can be shared by each sub-electric power system, improved greatly the reliability of system with less input;
3) standby rectifier cubice, in the Hot Spare state, has guaranteed that standby DC bus is always charged, can guarantee like this when one of them sub-electric power system breaks down, and only need can be system by a closed switch redundant power supply is provided, and operates quick and convenient.
4) batteries is used diode access load, utilizes diode nature afterflow and the anti-advantage of cut-off partially, without the manual control switch, can realize the automatism isolation of power supply group and standby rectifier cubice;
5) greatly reduce the quantity of rectification module under off-line mode, reduced input cost;
6) off-line mode has increased the accumulator testing DC bus, according to disconnection and the closure of system pattern and running status automatic control switch, has solved the problem of the regular discharge test of batteries under the high voltage direct current off-line mode with simple and practical method.The test bus, in the non-testing period of storage battery, can be realized the function of standby DC bus fully, reduces the input of standby DC bus.
In sum, the high voltage direct current electric power system of the embodiment of the present invention have that efficiency is high, cost drop into low, reliability is high, operate advantage quickly and easily.
The aspect that the present invention is additional and advantage part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present invention.
The accompanying drawing explanation
Above-mentioned and/or the additional aspect of the present invention and advantage will become from the following description of the accompanying drawings of embodiments and obviously and easily understand, wherein,
Fig. 1 is the structural representation of existing high voltage direct current electric power system;
Fig. 2 is the structural representation of off-line mode high voltage direct current electric power system according to an embodiment of the invention;
Fig. 3 is the structural representation of high voltage direct current electric power system off-line mode power supply control according to an embodiment of the invention.
Embodiment
Below describe embodiments of the invention in detail, the example of embodiment is shown in the drawings, and wherein same or similar label means same or similar element or the element with identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not be interpreted as limitation of the present invention.On the contrary, embodiments of the invention comprise spirit and interior all changes, modification and the equivalent of intension scope that falls into additional claims.
In description of the invention, it will be appreciated that, term " first ", " second " etc. are only for describing purpose, and can not be interpreted as indication or hint relative importance.In description of the invention, it should be noted that, unless otherwise clearly defined and limited, term " is connected ", " connection " should do broad understanding, for example, can be to be fixedly connected with, and can be also to removably connect, or connects integratedly; Can be mechanical connection, can be also to be electrically connected to; Can be directly to be connected, also can indirectly be connected by intermediary.For the ordinary skill in the art, can concrete condition understand above-mentioned term concrete meaning in the present invention.In addition, in description of the invention, except as otherwise noted, the implication of " a plurality of " is two or more.
In flow chart or any process of otherwise describing at this or method describe and can be understood to, mean to comprise one or more module, fragment or part for the code of the executable instruction of the step that realizes specific logical function or process, and the scope of the preferred embodiment of the present invention comprises other realization, wherein can be not according to order shown or that discuss, comprise according to related function by the mode of basic while or by contrary order, carry out function, this should be understood by the embodiments of the invention person of ordinary skill in the field.
Below with reference to accompanying drawing, the high voltage direct current electric power system according to the embodiment of the present invention is described.
At present, the framework form of domestic HVDC (High Voltage Direct Current) transmission system is, uses rectifier output and storage battery output to receive on same DC bus, by the realization of direct current supply control system to the power supply of bearing power with to the management of charging and discharging of batteries.
Fig. 2 is the structural representation of off-line mode high voltage direct current electric power system according to an embodiment of the invention, and Fig. 3 is the structural representation of high voltage direct current electric power system off-line mode power supply control according to an embodiment of the invention.
As shown in Figures 2 and 3, the high voltage direct current electric power system comprises: a plurality of loads 100, civil power direct-furnish bus 200, a plurality of sub-electric power systems 300, ac bus 400, DC bus 500 for test, standby commutation system 600, wherein, a plurality of sub-electric power systems 300 comprise: the first rectifier cubice 311, the first batteries 312, the first switch 313, DC bus 330 for load, the first diode 314, the first power-supply controller 315, second switch 316, the second rectifier cubice 321, the second batteries 322, the 3rd switch 323, the second diode 324, the second power-supply controller 325 and the 4th switch 326, standby commutation system 600 comprises: standby rectifier cubice 610, standby DC bus 620 and the 5th switch 630.
Wherein, a plurality of loads 100 can be such as being applied in blade server in data center, many power supplys server, printer, scanner, facsimile machine etc.
Be respectively the civil power direct-furnish bus 200 of a plurality of load supplyings.
Be respectively a plurality of sub-electric power system 300 of a plurality of load supplyings, wherein, every sub-electric power system comprises that the first rectifier cubice 311, the first rectifier cubices 311 comprise at least one rectification module, and an end of the first rectifier cubice 311 is connected with ac bus 400; The first switch 313 that the first batteries 312 is connected with the first batteries 312 with an end; One end of the first diode 314, the first diodes 314 is connected with the other end of the first switch 313 with the first rectifier cubice 311; DC bus 330 for load, load is connected with the other end of the first diode 314 with DC bus 330, load 100 power supplies that load is sub-electric power system 300 correspondences with DC bus 330; The first power-supply controller 315, the first power-supply controllers 315 are connected with the first diode 314 with the first switch 313 respectively, and the first power-supply controller 315 is controlled the first switch 313 for DC bus 330 power supplies for load.
Be respectively the standby commutation system 600 of a plurality of sub-electric power system 300 power supplies.
In one embodiment of the invention, sub-electric power system 300 also comprises second switch 316, one end of second switch 316 is connected with the first rectifier cubice 311, and the other end of second switch 316 is connected with DC bus 500 with test, and the first power-supply controller 315 is controlled second switch 316.
In one embodiment of the invention, sub-electric power system 300 also comprises that the second rectifier cubice 321, the second rectifier cubices 321 comprise at least one rectification module, and an end of the second rectifier cubice 321 is connected with ac bus 400; The 3rd switch 323 that the second batteries 322, the second batteries 322 are connected with the second batteries 322 with an end; One end of the second diode 324, the second diodes 324 is connected with the other end of the 3rd switch 323 with the second rectifier cubice 321, and the other end of the second diode 324 is connected with DC bus 330 with load; The second power-supply controller 325, the second power-supply controllers 325 are connected with the second diode 324 with the 3rd switch 323 respectively, and the second power-supply controller 325 is controlled the 3rd switch 323 for DC bus 330 power supplies for load.
In one embodiment of the invention, sub-electric power system 300 also comprises the 4th switch 326, one end of the 4th switch 326 is connected with the second rectifier cubice 321, and the other end of the 4th switch 326 is connected with DC bus 500 with test, and the second power-supply controller 325 is controlled the 4th switch 326.
In one embodiment of the invention, standby commutation system 600 comprises standby rectifier cubice 610, and standby rectifier cubice 610 comprises at least one rectification module, and an end of standby rectifier cubice 610 is connected with ac bus 400; With the standby DC bus 620 that standby rectifier cubice 610 is connected, the other end of standby DC bus 620 is connected with a plurality of the 5th switches 630, and the other end of a plurality of the 5th switches 630 is connected with a plurality of sub-electric power systems 300 respectively.
Elaborate function and the operation principle of each part in the high voltage direct current electric power system below in conjunction with Fig. 2 and Fig. 3.
1) electric power system part: as shown in Figure 2, the high voltage direct current electric power system can be comprised of a plurality of sub-electric power systems 300, for example, as shown in fig. 1, by sub-electric power system 300(1#), sub-electric power system 300(2#), sub-electric power system 300(3#) ... sub-electric power system 300(n#) form.Wherein, the system configuration of every sub-electric power system 300 is all identical, gives respectively corresponding load 100 power supplies.Sub-electric power system 300 can be linked into test with on DC bus 500 by second switch 316 and the 4th switch 326, can reach the purpose of battery discharging test under the high voltage direct current off-line mode, has improved the maintainability of system.
2) sub-electric power system part: as shown in Figure 2, every sub-electric power system 300 can comprise two power supply groups, i.e. power supply group 1 and power supply group 2, and each power supply group mainly is comprised of a rectifier cubice, a diode and two switches.Each power supply group all configures a group storage battery group, the management that the power supply group is charged, discharged this batteries.Take sub-electric power system 300(1#) be example, can comprise two groups of identical rectifier cubices in sub-electric power system 300, i.e. the first rectifier cubice 311 and the second rectifier cubice 321, two group storage battery groups, i.e. the first batteries 312 and the second batteries 322, one group of diode, i.e. the first diode 314 and the second diode 324 and two groups of corresponding switches, i.e. the first switch 313 and the 3rd switch 323, second switch 316 and the 4th switch 326.Wherein, the first rectifier cubice 311 and the second rectifier cubice 321 all can comprise one or more rectification module.
3) standby commutation system part: also be furnished with a set of standby commutation system 600 in the high voltage direct current electric power system.Take sub-electric power system 300(1#) be example, standby rectifier cubice 610 is linked on standby DC bus 620, sub-electric power system 300(1#) by the 5th switch 630, with standby DC bus 620, be connected, standby DC bus 620 and sub-electric power system 300(1#) in the first diode 314, the second diode 324 coordinate the load that can be sub-electric power system 300 to make redundant power supply, this has improved the reliability of entire system.Should be understood that standby commutation system 600 is linked in sub-electric power system 300 by standby DC bus 620 and corresponding the 5th switch 620 of each sub-electric power system 300, thus, realizes sharing of a plurality of sub-electric power systems.Wherein, standby DC bus 700 can arrange separately, and also available test DC bus 500 replaces.Because test DC bus 500 is only used during accumulator checking, most time is vacant, and the access of stand-by equipment adopts the mode of electricity behaviour switching, when normal, mutually isolate, test so DC bus 500 and can meet the stand-by power supply requirement fully, and system architecture is become simple, reduce costs.
Elaborate the operation principle of off-line mode in the high voltage direct current electric power system below in conjunction with Fig. 2 and Fig. 3.
In one embodiment of the invention, the first power-supply controller 315 is connected with the rectification module in the first rectifier cubice 311, and the first power-supply controller 315 is controlled the output state of the first rectifier cubice 311.Wherein, output state includes but not limited to one or more in voltage, electric current and the power of the first rectifier cubice 311 output.
In one embodiment of the invention, when the first batteries 312 electric discharge, and the electric weight of the first batteries 312 is during lower than default electric weight, and the first power-supply controller 315 is controlled the first switches 313 and disconnected.Wherein, default electric weight can be system default, or arrange in system.In addition, when mains-supplied is normal, keep the first switch 313 closures to think the first batteries 312 chargings.Thus, can protect batteries.
In one embodiment of the invention, when the electric weight of the first batteries 312 during lower than default electric weight, the first power-supply controller 315 controls that the first switches 313 are closed or to keep this switch be closure state, to realize the first batteries 312 chargings.In addition, the first power-supply controller 315 also for the power output of adjusting the first rectifier cubice 311 so that the charging current of the first batteries 312 keeps constant.
In one embodiment of the invention, the first power-supply controller 315 also for the output voltage of adjusting the first rectifier cubice 311 to complete the charging to the first batteries 312.
In one embodiment of the invention, under off-line mode, when the civil power connected when civil power direct-furnish bus 200 is normal, the first rectifier cubice 311 and the second rectifier cubice 321 are in the hot standby state of zero load.
Particularly, take sub-electric power system 300(1#) be example.During normal operation, civil power direct-furnish bus 200 is born whole power stages.The first batteries 312 access loads with DC bus 330 in support.Rectification module under off-line mode without to load 100, providing power stage, with this, only need a small amount of module of configuration, the no-load loss that meets the first batteries 312 chargings and power supply gets final product, greatly reduce the capacity of the first rectifier cubice and the second rectifier cubice, significantly reduced input cost.
The rectification module of standby rectifier cubice 600 configuration full capacities, at least can provide power at full capacity for a sub-electric power system 300, most rectification modules in standby rectifier cubice 600 are in resting state under normal circumstances, standby rectifier cubice 600 is in the Hot Spare state, i.e. output voltage but output current not.When the civil power direct-furnish bus 200 in a sub-electric power system 300 breaks down and maybe needs to safeguard, closed the 5th switch 800, standby rectifier cubice 600 is by load 100 power supplies in 700 pairs of sub-electric power systems of fault of standby DC bus.
More specifically, under off-line mode, the first power-supply controller 315 is controlled closed the first switch 313, and disconnect the 3rd switch 316, rectification module output voltage 270V now, the first batteries 312, in floating charge state, accesses to load DC bus 330 by the first diode 314.Because no-load current flows through, therefore now the first diode 314 losses can be ignored.During emergency, while needing the first batteries 312 that power stage is provided, rectification module enters permanent power mode along with bearing power improves, and electric current raises and lower voltage, and now the first batteries 312 starts electric discharge, to make up the raising of load.In addition, should be understood that the another one power supply group in sub-electric power system 300, i.e. power supply group 2 is identical with structure and the function of the power supply group 1 of above-mentioned explanation, no longer multiple superfluous herein.
In addition, also can use 500 pairs of the first batteries 312 of DC bus to carry out discharge test by test.Particularly, take power supply group 1 as example, when the first batteries 312 electric discharge, the first power-supply controller 315 is controlled the 3rd switch 316 closures, and control the rectifier cubice Head switches and disconnect, now, the first diode 314 plays reverse cut-off effect, so that the first rectifier cubice 311 is isolated with sub-electric power system 300 fully, now the first batteries 312 can be to load 100 power supplies.
Should be understood that and also can carry out by the way discharge test to the second batteries 322, its principle is identical, no longer multiple superfluous herein.In addition, when the first batteries 312 is carried out to discharge test, guarantee that the second batteries 322 in sub-electric power system 300 is online.In addition, after the first batteries 312 discharge tests, after the first batteries 312 need to being returned to fully charged state, the second batteries 322 is carried out to discharge test, thus, can reduce the risk in test.
In addition, take sub-electric power system 300(1#) be example, group electric power system 300(1#) civil power direct-furnish bus 200 breaks down maybe to be needed to safeguard, the first batteries 312 and the second batteries 322 are discharged to load 100 by corresponding respectively the first diode 314 and the second diode 324.Now, closed the 5th switch 800, standby rectifier cubice 600 will automatically start in tens seconds, the voltage of standby DC bus 700 is higher than the voltage of the first batteries 312 and the second batteries 322, the first batteries 312 and the second batteries 322 stop, to load 100 power supplies, turning by 700 pairs of loads of standby DC bus, 100 power supplies.Because the first diode 314 and the second diode 324 have reverse cut-off effect, back-up system can be to the action of charging of the first batteries 312 and the second batteries 322.The action if charge, the charging current of the first batteries 312 and the second batteries 322 will be uncontrollable, has potential safety hazard.Thus, improved the reliability of entire system, and simple to operate flexible.
At least there is following advantage in high voltage direct current electric power system according to the embodiment of the present invention:
1) adopt the scheme of civil power direct-furnish, high voltage direct current off-line mode, the power supply plan that power supplying efficiency is all exported higher than traditional high voltage direct current line model;
2) add standby rectifier cubice on the load DC bus, can be shared by each sub-electric power system, improved greatly the reliability of system with less input;
3) standby rectifier cubice, in the Hot Spare state, has guaranteed that standby DC bus is always charged, can guarantee like this when one of them sub-electric power system breaks down, and only need can be system by a closed switch redundant power supply is provided, and operates quick and convenient;
4) batteries is used diode access load, utilizes diode nature afterflow and the anti-advantage of cut-off partially, without the manual control switch, can realize the automatism isolation of power supply group and standby rectifier cubice;
5) greatly reduce the quantity of rectification module under off-line mode, reduced hardware input cost in early stage;
6) off-line mode has increased the accumulator testing DC bus, according to disconnection and the closure of system pattern and running status automatic control switch, has solved the problem of the regular discharge test of batteries under the high voltage direct current off-line mode with simple and practical method.And the test bus, in the non-testing period of storage battery, can be realized the function of standby DC bus fully, reduces the input of standby DC bus.
In sum, the high voltage direct current electric power system of the embodiment of the present invention has advantages of that practicality is high, reliability is high, maintainability is high, efficiency is high, production drops into low.
In the description of this specification, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or example in conjunction with specific features, structure, material or the characteristics of this embodiment or example description.In this manual, the schematic statement of above-mentioned term not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or characteristics can be with suitable mode combinations in any one or more embodiment or example.
Although illustrated and described embodiments of the invention, those having ordinary skill in the art will appreciate that: in the situation that do not break away from principle of the present invention and aim can be carried out multiple variation, modification, replacement and modification to these embodiment, scope of the present invention is limited by claim and equivalent thereof.
Claims (10)
1. a high voltage direct current electric power system, is characterized in that, comprising:
A plurality of loads;
Be respectively the civil power direct-furnish bus of described a plurality of load supplyings;
For a plurality of sub-electric power system of described a plurality of load supplyings, each described sub-electric power system further comprises:
The first rectifier cubice, described the first rectifier cubice comprises at least one rectification module, an end of described the first rectifier cubice is connected with ac bus;
The first switch that the first batteries is connected with described the first batteries with an end;
The first diode, the anode of described the first diode is connected with the other end of described the first switch with described the first rectifier cubice;
The load DC bus, described load is connected with the negative electrode of described the first diode with DC bus, and described load is load supplying corresponding to described sub-electric power system with DC bus;
The first power-supply controller, described the first power-supply controller is connected with described the first switch, and it is that described load is with DC bus powered that described the first power-supply controller is controlled described the first switch; And
Be respectively the standby commutation system of described a plurality of sub-electric power system power supplies.
2. high voltage direct current electric power system as claimed in claim 1, is characterized in that, described the first power-supply controller is connected with the rectification module in described the first rectifier cubice, and described the first power-supply controller is controlled the output voltage of described the first rectifier cubice.
3. high voltage direct current electric power system as claimed in claim 1, is characterized in that, when described first batteries when electric discharge, and the electric weight of described the first batteries is during lower than default electric weight, and described the first power-supply controller is controlled described the first switch and disconnected.
4. high voltage direct current electric power system as claimed in claim 2, is characterized in that, described the first power-supply controller also for the output voltage of adjusting described the first rectifier cubice to complete the charging to described the first batteries.
5. high voltage direct current electric power system as claimed in claim 1, is characterized in that, described sub-electric power system also comprises:
Second switch, an end of described second switch is connected with described the first rectifier cubice, and the other end of described second switch is connected with DC bus with test, and described the first power-supply controller is controlled described second switch.
6. high voltage direct current electric power system as claimed in claim 1, is characterized in that, described sub-electric power system also comprises:
The second rectifier cubice, described the second rectifier cubice comprises at least one rectification module, an end of described the second rectifier cubice is connected with ac bus;
The 3rd switch that the second batteries is connected with described the second batteries with an end;
The second diode, the anode of described the second diode is connected with the other end of described the 3rd switch with described the second rectifier cubice;
The second power-supply controller, described the second power-supply controller is connected with described the 3rd switch, and it is that described load is with DC bus powered that described the second power-supply controller is controlled described the 3rd switch.
7. high voltage direct current electric power system as claimed in claim 6, is characterized in that, described sub-electric power system also comprises:
The 4th switch, an end of described the 4th switch is connected with described the second rectifier cubice, and the other end of described the 4th switch is connected with DC bus with test, and described the second power-supply controller is controlled described the 4th switch.
8. high voltage direct current electric power system as claimed in claim 6, is characterized in that, under off-line mode, when the civil power connected when described civil power direct-furnish bus is normal, the first rectifier cubice and the second rectifier cubice are in the hot standby state of zero load.
9. high voltage direct current electric power system as claimed in claim 1, is characterized in that, described standby commutation system comprises:
Standby rectifier cubice, described standby rectifier cubice comprises at least one rectification module, an end of described standby rectifier cubice is connected with ac bus;
Standby rectifier cubice full configuration, meet a sub-electric power system power demands, and during subsystem fault, a closed switch can come into operation.Its rectification module is in resting state under normal circumstances, and energy consumption is low.
With the standby DC bus that described standby rectifier cubice is connected, the other end of described standby DC bus is connected with a plurality of the 5th switches, and the other end of described a plurality of the 5th switches is connected with described a plurality of sub-electric power systems respectively.
10. high voltage direct current electric power system as claimed in claim 9, is characterized in that, described standby DC bus can install additional separately, also can be described test DC bus.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103809475A (en) * | 2014-02-19 | 2014-05-21 | 中国北方车辆研究所 | 900V high voltage power distribution priority management method |
| CN103915891A (en) * | 2014-04-16 | 2014-07-09 | 北京百度网讯科技有限公司 | Power supply system and method |
| CN107465131A (en) * | 2017-09-14 | 2017-12-12 | 国网山东省电力公司 | A kind of intelligent mobile integrated power supply |
| CN110139429A (en) * | 2019-04-29 | 2019-08-16 | 山东三晶照明科技有限公司 | A kind of tunnel redundant direct current power supply system and method for supplying power to |
| CN112350423A (en) * | 2020-11-04 | 2021-02-09 | 合肥联信电源有限公司 | Emergency lighting controller with redundant power supply |
| CN113364109A (en) * | 2020-03-06 | 2021-09-07 | 阿里巴巴集团控股有限公司 | Power supply system, data center and power supply method |
| CN114256956A (en) * | 2020-09-21 | 2022-03-29 | 周雅娟 | DC power supply system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090021079A1 (en) * | 2007-07-20 | 2009-01-22 | Eaton Power Quality Corporation | Power Systems and Methods Using an Uninterruptible Power Supply to Transition to Generator-Powered Operation |
| CN101794985A (en) * | 2010-03-17 | 2010-08-04 | 杭州中恒电气股份有限公司 | High-voltage direct-current (HVDC) system battery charging protecting circuit structure |
| CN102916481A (en) * | 2012-08-16 | 2013-02-06 | 深圳微网能源管理系统实验室有限公司 | Direct-current microgrid system and energy management method thereof |
-
2013
- 2013-08-28 CN CN201310381629.0A patent/CN103490492B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090021079A1 (en) * | 2007-07-20 | 2009-01-22 | Eaton Power Quality Corporation | Power Systems and Methods Using an Uninterruptible Power Supply to Transition to Generator-Powered Operation |
| CN101794985A (en) * | 2010-03-17 | 2010-08-04 | 杭州中恒电气股份有限公司 | High-voltage direct-current (HVDC) system battery charging protecting circuit structure |
| CN102916481A (en) * | 2012-08-16 | 2013-02-06 | 深圳微网能源管理系统实验室有限公司 | Direct-current microgrid system and energy management method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 余光佐: "高压直流供电系统在客服机房的应用", 《通信电源技术》, vol. 29, 25 March 2012 (2012-03-25), pages 81 - 83 * |
| 解自军: "DC240V直流供电系统在模块化机房中的应用", 《电源世界》, 31 December 2012 (2012-12-31), pages 53 - 55 * |
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| CN103809475A (en) * | 2014-02-19 | 2014-05-21 | 中国北方车辆研究所 | 900V high voltage power distribution priority management method |
| CN103809475B (en) * | 2014-02-19 | 2016-08-17 | 中国北方车辆研究所 | A kind of high pressure 900V distribution priority management method |
| CN103915891A (en) * | 2014-04-16 | 2014-07-09 | 北京百度网讯科技有限公司 | Power supply system and method |
| CN107465131A (en) * | 2017-09-14 | 2017-12-12 | 国网山东省电力公司 | A kind of intelligent mobile integrated power supply |
| CN110139429A (en) * | 2019-04-29 | 2019-08-16 | 山东三晶照明科技有限公司 | A kind of tunnel redundant direct current power supply system and method for supplying power to |
| CN113364109A (en) * | 2020-03-06 | 2021-09-07 | 阿里巴巴集团控股有限公司 | Power supply system, data center and power supply method |
| CN114256956A (en) * | 2020-09-21 | 2022-03-29 | 周雅娟 | DC power supply system |
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