CN106849313A - A kind of high-voltage direct current (DC) power system - Google Patents
A kind of high-voltage direct current (DC) power system Download PDFInfo
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- CN106849313A CN106849313A CN201510888633.5A CN201510888633A CN106849313A CN 106849313 A CN106849313 A CN 106849313A CN 201510888633 A CN201510888633 A CN 201510888633A CN 106849313 A CN106849313 A CN 106849313A
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- direct current
- rectification module
- bus
- rectification
- output switch
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Abstract
The invention discloses a kind of high-voltage direct current (DC) power system, including：The input at least alternating current unit of alternating current, rectification unit, direct current component including at least one rectification module group all the way；Wherein：Alternating current unit, for for each rectification module in each the rectification module group in rectification unit, alternating current to be input into the rectification module all the way for distribution；The alternating current of the rectification module input in same rectification module group is with alternating current all the way；Each rectification module in each rectification module group in rectification unit, for by the convert alternating current of input be direct current after export to dc bus；Rectification module in same rectification module group exports direct current to identical dc bus；Direct current component, for the DC supply input distributed on dc bus to each load.The high-voltage direct current (DC) power system provided using the present invention, small volume.
Description
Technical field
The present invention relates to power technique fields, more particularly to a kind of high-voltage direct current (DC) power system.
Background technology
With continuing to develop for technology, the miniaturization of power-supply system has become the development trend in future.Tradition
Power-supply system include exchange cabinet, rectifier cabinet, DC cabinet and first cabinet of each row, volume is larger, can take larger
Floor space.
The content of the invention
The embodiment of the present invention provides a kind of high-voltage direct current (DC) power system, and small volume, power attenuation is relatively low.
The embodiment of the present invention provides a kind of high-voltage direct current (DC) power system, including：Input at least alternating current all the way
Alternating current unit, rectification unit, direct current component including at least one rectification module group；Wherein：
The alternating current unit, for for each rectification in each the rectification module group in the rectification unit
Module, alternating current is input into the rectification module all the way for distribution；Rectification module input in same rectification module group
Alternating current be with alternating current all the way；
Each rectification module in each rectification module group in the rectification unit, for the exchange that will be input into
Electricity is exported to dc bus after being transformed to direct current；Rectification module output direct current in same rectification module group
To identical dc bus；
The direct current component, for distributing the DC supply input on the dc bus to each load.
High-voltage direct current (DC) power system provided in an embodiment of the present invention, only including alternating current unit, rectification unit and straight
Stream three units of unit, it is clear that compared in the prior art including exchange cabinet, rectifier cabinet, DC cabinet and row head
The power-supply system of cabinet, high-voltage direct current (DC) power system small volume provided in an embodiment of the present invention, application scenarios are more
For extensive, also, DC side electrical distribution paths are shorter, can reduce power attenuation.
Brief description of the drawings
Accompanying drawing is used for providing a further understanding of the present invention, and constitutes a part for specification, with this hair
Bright embodiment is used to explain the present invention together, is not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the schematic diagram of the high-voltage direct current (DC) power system that the embodiment of the present invention 1 is provided；
Fig. 2 is the schematic diagram of the high-voltage direct current (DC) power system that the embodiment of the present invention 2 is provided；
Fig. 3 is the schematic diagram of the high-voltage direct current (DC) power system that the embodiment of the present invention 3 is provided.
Specific embodiment
In order to provide the implementation of the power-supply system of small volume, a kind of high pressure is the embodiment of the invention provides
The preferred embodiments of the present invention are illustrated by DC power system below in conjunction with Figure of description, should be managed
Solution, preferred embodiment described herein is merely to illustrate and explain the present invention, is not intended to limit the present invention.
And in the case where not conflicting, the feature in embodiment and embodiment in the application can be mutually combined.
A kind of high-voltage direct current (DC) power system is the embodiment of the invention provides, including：Input at least alternating current all the way
Alternating current unit, rectification unit, direct current component including at least one rectification module group；Wherein：
Alternating current unit, for for each rectification module in each the rectification module group in rectification unit, dividing
It is input into the rectification module with alternating current all the way；The alternating current of the rectification module input in same rectification module group
It is with alternating current all the way；
Each rectification module in each rectification module group in rectification unit, the alternating current for that will be input into becomes
Exported to dc bus after being changed to direct current；Rectification module in same rectification module group exports direct current to phase
Same dc bus；
Direct current component, for the DC supply input distributed on dc bus to each load.
In embodiments of the present invention, alternating current unit, rectification unit and direct current component are located in a rack；I.e.
High-voltage direct current (DC) power system provided in an embodiment of the present invention is a kind of integral type power-supply system.
Preferably, above-mentioned rectification unit can also include at least one batteries, for being supplied for dc bus
Electricity, it is ensured that the reliability of DC bus-bar voltage, and then can be with the power supply reliability of proof load.
Below in conjunction with the accompanying drawings, high-voltage direct current (DC) power system provided in an embodiment of the present invention is entered with specific embodiment
Row explanation.
Embodiment 1：
The embodiment of the present invention 1 provide high-voltage direct current (DC) power system as shown in figure 1, including：Input two-way is handed over
The alternating current unit 101 of stream electricity Vin1, Vin2, including the first rectification module group and the second rectification module group is whole
Stream unit 102, direct current component 103；Wherein：
First rectification module group includes n rectification module H1, H2 ... Hn, and the n rectification module is defeated
Go out direct current to the first dc bus, n >=1；
Second rectification module group includes that m rectification module Hn+1, Hn+2 ... Hn+m, the m are individual whole
Flow module exports direct current to the second dc bus, m >=1；
First dc bus and the second dc bus are identical dc bus BUS.
Specifically, alternating current unit 101, including two friendships one-to-one with two-way alternating current Vin1, Vin2
Stream input switch Q11, Q12 and the n one-to-one n of rectification module be individual exchange output switch Q21,
Q22 ... Q2n and the m one-to-one m of rectification module exchange output switch Q2n+1,
Q2n+2 ... Q2n+m, wherein：
Two first ends of exchange input switch Q11, Q12 as two-way alternating current Vin1, Vin2 input
End；N exchange output switch Q21 of two the second end connections of exchange input switch Q11, Q12,
The first of the first end of Q22 ... Q2n, m exchange output switch Q2n+1, Q2n+2 ... Q2n+m
End；N second end of exchange output switch Q21, Q22 ... Q2n, m exchange output switch Q2n+1,
Second end of Q2n+2 ... Q2n+m, connects the input of corresponding rectification module respectively.
Preferably, except including rectification module group in rectification unit 102, also including the first batteries and
Two batteries, for being powered for dc bus BUS.Preferably, rectification unit 102 also includes first
The protection fuse F2 of protection fuse F1 and second, wherein：First batteries are by the first protection fuse F1
Connection dc bus BUS, the second batteries connect dc bus BUS by the second protection fuse F2.
Specifically, direct current component 103, including 2p direct current output switch, p is load number, p >=1
Wherein：
In 2p direct current output switch, p direct current output switchs Q3a1, Q3a2 ... Q3ap and load one
One correspondence, the first end connection dc bus of p direct current output switch Q3a1, Q3a2 ... Q3ap
Second end of BUS, p direct current output switch Q3a1, Q3a2 ... Q3ap connects corresponding negative respectively
The feeder ear of load；
In 2p direct current output switch, p direct current output switchs Q3b1, Q3b2 ... Q3bp in addition
Corresponded with load, the first end of other p direct current output switch Q3b1, Q3b2 ... Q3bp connects
Dc bus BUS is met, second end of other p direct current output switch Q3b1, Q3b2 ... Q3bp
The feeder ear of corresponding load is connected respectively.
During high-voltage direct current (DC) power system normal work shown in Fig. 1, the two-way alternating current of input is defeated by exchanging
Enter switch, exchange output switch and be assigned to each rectification module, arrived by exporting direct current after rectification module rectification
Direct current is transported to each direct current output switch, and protection fuse by dc bus, dc bus, respectively to each
Load supplying and to battery charging.
When the two-way AC outage of input, batteries are switched to each by protecting fuse and direct current output
Load supplying.
During specific implementation, can gather input AC electricity electric current and voltage, the output current of rectification module and
The parameters such as output voltage, the electric current of batteries, each switch and protection fuse state, enter to each rectification module
Row control and management.
High-voltage direct current (DC) power system voltage is high, electric current is small, therefore the battery group capacity of its configuration is also smaller.
For example, the system for capacity between 150~180KW, battery group capacity is generally less than 500Ah,
The rated current of fuse is protected to be generally less than 630A, breaking capacity is 25~35KA, and direct current output switch can
Using air switch, specification is 32~63A, and breaking capacity is 6~10KA；Direct current output switch can be reliable
The short circuit current that rectification module is produced during disjunction DC side load short circuits, direct current output switch is matched somebody with somebody with protection fuse
Close can reliable disjunction DC side load short circuits when the short circuit current that produces of batteries.
It can be seen that, the high-voltage direct current (DC) power system DC side that the embodiment of the present invention 1 is provided can match somebody with somebody only with one-level
Electricity, directly excessively stream/short-circuit protection is carried out by direct current output switch to load, and direct current is simplified compared to prior art
Scheme of electric power, saves system cost, and small volume, application scenarios are more extensive, and reduce power
Loss, improves system effectiveness.
When the high-voltage direct current (DC) power system that the embodiment of the present invention 1 is provided is applied to middle-size and small-size data center, on
State load and be specifically as follows the equipment such as server.
In high-voltage direct current (DC) power system shown in Fig. 1, the AC of rectification unit is homologous, rectification unit it is straight
Stream side is also homologous.In other embodiments of the invention, the AC of rectification unit can not also be homologous, whole
The DC side for flowing unit can not also be homologous.
Embodiment 2：
The embodiment of the present invention 2 provide high-voltage direct current (DC) power system as shown in Fig. 2 including：Input two-way is handed over
The alternating current unit 201 of stream electricity Vin1, Vin2, including the first rectification module group and the second rectification module group is whole
Stream unit 202, direct current component 203；Wherein：
First rectification module group includes n rectification module H1, H2 ... Hn, and the n rectification module is defeated
Go out direct current to the first dc bus BUS 1, n >=1；
Second rectification module group includes that m rectification module Hn+1, Hn+2 ... Hn+m, the m are individual whole
Flow module exports direct current to the second dc bus BUS 2, m >=1；
Compared to the high-voltage direct current (DC) power system shown in Fig. 1, essential difference is in the first dc bus BUS 1
It is different dc bus with the second dc bus BUS 2.
Preferably, except including rectification module group in rectification unit 202, also including the first batteries and
Two batteries, the first batteries are used to be powered for the first dc bus BUS1, and the second batteries are used
Powered in for the second dc bus BUS 2.Preferably, rectification unit 202 also includes the first protection fuse
The protection fuse F2 of F1 and second, wherein：It is straight that first batteries connect first by the first protection fuse F1
Stream bus BUS1, the second batteries connect the second dc bus BUS 2 by the second protection fuse F2.
Specifically, direct current component 203, including 2p direct current output switch, p is load number, p >=1
Wherein：
In 2p direct current output switch, p direct current output switchs Q3a1, Q3a2 ... Q3ap and load one
One correspondence, p direct current output switch Q3a1, Q3a2 ... Q3ap, first end connect the first direct current
Bus BUS1, p direct current output switch Q3a1, Q3a2 ... Q3ap, the second end connect respectively
The feeder ear of corresponding load；
In 2p direct current output switch, p direct current output switchs Q3b1, Q3b2 ... Q3bp in addition
Corresponded with load, the first end of other p direct current output switch Q3b1, Q3b2 ... Q3bp connects
The second dc bus BUS 2 is met, the of the other p direct current output switch Q3b1, Q3b2 ... Q3bp
Two ends connect the feeder ear of corresponding load respectively.
High-voltage direct current (DC) power system i.e. shown in Fig. 2, the AC of rectification unit is homologous, rectification unit it is straight
Stream side is not homologous.Concrete principle refers to previous embodiment 1, will not be repeated here.
Embodiment 3：
The embodiment of the present invention 3 provide high-voltage direct current (DC) power system as shown in figure 3, including：Input two-way is handed over
The alternating current unit 301 of stream electricity Vin1, Vin2, including the first rectification module group and the second rectification module group is whole
Stream unit 302, direct current component 303.
Compared to the high-voltage direct current (DC) power system shown in Fig. 2, main difference is that alternating current unit 301 is specific
Realize.
Specifically, alternating current unit 301, including two friendships one-to-one with two-way alternating current Vin1, Vin2
Stream input switch Q11, Q12 and the n one-to-one n of rectification module be individual exchange output switch Q21,
Q22 ... Q2n and the m one-to-one m of rectification module exchange output switch Q2n+1,
Q2n+2 ... Q2n+m, wherein：
Two first ends of exchange input switch Q11, Q12 as two-way alternating current Vin1, Vin2 input
End；In two exchange input switches Q11, Q12, the second end connection n of exchange input switch Q11
The first end of individual exchange output switch Q21, Q22 ... Q2n, the of another exchange input switch Q12
Two ends connect the m first end of exchange output switch Q2n+1, Q2n+2 ... Q2n+m；N exchange is defeated
Go out to switch Q21, Q22 ... second end of Q2n, m exchange output switch Q2n+1,
Second end of Q2n+2 ... Q2n+m, connects the input of corresponding rectification module respectively.
High-voltage direct current (DC) power system i.e. shown in Fig. 3, the AC of rectification unit is not homologous, rectification unit
DC side is not also homologous.Concrete principle refers to previous embodiment 1, will not be repeated here.
In sum, using integrated high pressure DC power system provided in an embodiment of the present invention, simplify straight
Stream scheme of electric power, small volume, and reduce power attenuation.
Obviously, those skilled in the art can carry out various changes and modification without deviating from this hair to the present invention
Bright spirit and scope.So, if it is of the invention these modification and modification belong to the claims in the present invention and
Within the scope of its equivalent technologies, then the present invention is also intended to comprising these changes and modification.
Claims (9)
1. a kind of high-voltage direct current (DC) power system, it is characterised in that including：Input at least alternating current all the way
Alternating current unit, rectification unit, direct current component including at least one rectification module group；Wherein：
The alternating current unit, for for each rectification in each the rectification module group in the rectification unit
Module, alternating current is input into the rectification module all the way for distribution；Rectification module input in same rectification module group
Alternating current be with alternating current all the way；
Each rectification module in each rectification module group in the rectification unit, for the exchange that will be input into
Electricity is exported to dc bus after being transformed to direct current；Rectification module output direct current in same rectification module group
To identical dc bus；
The direct current component, for distributing the DC supply input on the dc bus to each load.
2. high-voltage direct current (DC) power system as claimed in claim 1, it is characterised in that the alternating current unit
Input two-way alternating current；
The rectification unit includes the first rectification module group and the second rectification module group, wherein：
The first rectification module group includes n rectification module, and the n rectification module exports direct current
To the first dc bus, n >=1；
The second rectification module group includes m rectification module, and the m rectification module exports direct current
Electricity is to the second dc bus, m >=1.
3. high-voltage direct current (DC) power system as claimed in claim 2, it is characterised in that first direct current
Bus and second dc bus are identical dc bus or are different dc bus.
4. high-voltage direct current (DC) power system as claimed in claim 2, it is characterised in that the alternating current unit,
Specifically include two one-to-one with the two-way alternating current and exchange input switch and the n rectification mould
The one-to-one n exchange output switch of block is exchanged with the one-to-one m of m rectification module
Output switch, wherein：
It is described two exchange input switches first ends as the two-way alternating current input；
First end, the institute of the second end connection n exchange output switch of described two exchange input switches
State the m first end of exchange output switch；
Second end of the n exchange output switch, the second end of the m exchange output switch, respectively
Connect the input of corresponding rectification module.
5. high-voltage direct current (DC) power system as claimed in claim 2, it is characterised in that the alternating current unit,
Specifically include two one-to-one with the two-way alternating current and exchange input switch and the n rectification mould
The one-to-one n exchange output switch of block is exchanged with the one-to-one m of m rectification module
Output switch, wherein：
It is described two exchange input switches first ends as the two-way alternating current input；
In described two exchange input switches, the second end connection n exchange of an exchange input switch
The first end of output switch；The second end connection m exchange output switch of another exchange input switch
First end；
Second end of the n exchange output switch, the second end of the m exchange output switch, respectively
Connect the input of corresponding rectification module.
6. high-voltage direct current (DC) power system as claimed in claim 2, it is characterised in that the rectification unit
Also include the first batteries and the second batteries, wherein：
First batteries, for for described first DC bus powered；
Second batteries, for for described second DC bus powered.
7. high-voltage direct current (DC) power system as claimed in claim 6, it is characterised in that the rectification unit
Also include the first protection fuse and the second protection fuse, wherein：
First batteries connect first dc bus by the described first protection fuse；
Second batteries connect second dc bus by the described second protection fuse.
8. high-voltage direct current (DC) power system as claimed in claim 2, it is characterised in that the direct current component
Including 2p direct current output switch, p is load number, wherein：
In the 2p direct current output switch, p direct current output switch and load are corresponded, and the p straight
The first end for flowing output switch connects first dc bus, p second end point of direct current output switch
The feeder ear of corresponding load is not connected；
In the 2p direct current output switch, p direct current output switch is also corresponded with load in addition,
The first end of the other p direct current output switch connects second dc bus, and the other p direct current is defeated
The second end for going out switch connects the feeder ear of corresponding load respectively.
9. the high-voltage direct current (DC) power system as described in claim 1-8 is any, it is characterised in that the friendship
Stream unit, the rectification unit and the direct current component are located in a rack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510888633.5A CN106849313A (en) | 2015-12-04 | 2015-12-04 | A kind of high-voltage direct current (DC) power system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510888633.5A CN106849313A (en) | 2015-12-04 | 2015-12-04 | A kind of high-voltage direct current (DC) power system |
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| CN106849313A true CN106849313A (en) | 2017-06-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510888633.5A Pending CN106849313A (en) | 2015-12-04 | 2015-12-04 | A kind of high-voltage direct current (DC) power system |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102214945A (en) * | 2010-12-21 | 2011-10-12 | 深圳市泰昂能源科技股份有限公司 | Direct current power system based on paralleling connection of storage batteries |
| CN102468682A (en) * | 2010-11-05 | 2012-05-23 | 湖南丰日电源电气股份有限公司 | High voltage direct current power supply system for both alternating current purpose and direct current purpose |
| CN103618368A (en) * | 2013-12-10 | 2014-03-05 | 山东圣阳电源股份有限公司 | High-voltage direct current power supply system |
| US20150001942A1 (en) * | 2013-03-06 | 2015-01-01 | Huawei Technologies Co., Ltd. | Power supply method and apparatus |
| CN204167981U (en) * | 2014-08-29 | 2015-02-18 | 中达电通股份有限公司 | Efficient formula power-supply system mixed with general effect rectification module |
-
2015
- 2015-12-04 CN CN201510888633.5A patent/CN106849313A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102468682A (en) * | 2010-11-05 | 2012-05-23 | 湖南丰日电源电气股份有限公司 | High voltage direct current power supply system for both alternating current purpose and direct current purpose |
| CN102214945A (en) * | 2010-12-21 | 2011-10-12 | 深圳市泰昂能源科技股份有限公司 | Direct current power system based on paralleling connection of storage batteries |
| US20150001942A1 (en) * | 2013-03-06 | 2015-01-01 | Huawei Technologies Co., Ltd. | Power supply method and apparatus |
| CN103618368A (en) * | 2013-12-10 | 2014-03-05 | 山东圣阳电源股份有限公司 | High-voltage direct current power supply system |
| CN204167981U (en) * | 2014-08-29 | 2015-02-18 | 中达电通股份有限公司 | Efficient formula power-supply system mixed with general effect rectification module |
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Address after: Nanshan District Xueyuan Road in Shenzhen city of Guangdong province 518055 No. 1001 Nanshan Chi Park building B2 Applicant after: Vitamin Technology Co., Ltd. Address before: Nanshan District Xueyuan Road in Shenzhen city of Guangdong province 518055 No. 1001 Nanshan Chi Park building B2 Applicant before: Aimosheng Network Energy Source Co., Ltd. |
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Application publication date: 20170613 |