CN102842936A - Distributed battery power supply device and method - Google Patents
Distributed battery power supply device and method Download PDFInfo
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- 238000005457 optimization Methods 0.000 claims description 9
- 150000001875 compounds Chemical class 0.000 claims description 6
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Abstract
The invention relates to the field of electric power supply, in particular to a distributed battery power supply device for supplying power for a data center. The data center comprises a plurality of machine frames, and servers respectively arranged on the machine frames; the power supply device comprises direct current power supply units and battery modules respectively arranged on the machine frames; on each machine frame, the direct current power supply unit is connected with the server and the battery module respectively, the server and the battery module are communicated with each other via a communication circuit, and the direct current power supply unit supplies power for the server and supplies a charging power source for the battery module; the battery modules are inter-connected and communicated with each other via the communication circuits. In the invention, energy storage batteries are disassembled and deployed onto each machine frame of the data center in a distributed way, and share machine frames with the servers, so that the battery modules can supply power for the servers directly, thus the power supply efficiency of the power supply system of the data center, and the space utilization rate of the data center are effectively improved.
Description
Technical field
The present invention relates to the power supply field, relate in particular to a kind of distributed battery electric supply installation and method that is used to data center's power supply.
Background technology
Along with ICT development and demand growth, in recent years, global data center quantity rapidly increases.The global data center total amount surpasses 3,700,000 at present; Wherein, The growth rate of medium-sized data center (about 500 square meters are to 2000 square meters) and large enterprise grade data center (more than 2000 square meters) is higher than average growth rate; These data centers are mainly used in large enterprise, like industries such as telecommunications, finance, also are included as the hosting data center that SME users provide service.
Be accompanied by the develop rapidly of data center, power supply reliability problem, energy consumption problem and space problem are accompanied by its development always.Operator of data center demands finding the effective scheme that addresses these problems urgently.
Guarantee in the data center that at present power supply reliability mainly is to rely on uninterruption power source (UPS) to realize that still, there is following problem in this mode:
1, traditional UPS is because in that power supply needs electric main to DC converting to the data central server, direct current changed for two steps to exchanging, the energy loss of existence about 15% in twice conversion;
2, the centralized fashion of ups system takies the big quantity space of data center separately, causes the benefit of data center's unit space to descend;
3, traditional UPS adopts the lead-acid battery energy storage, needs manual regular to safeguard, failure rate is high, maintenance cost is high.
Summary of the invention
The technical problem that (one) will solve
The object of the present invention is to provide a kind of distributed battery electric supply installation, be used for solving that present data center ups system power supplying efficiency is low, big problem takes up room.
(2) technical scheme
Technical scheme of the present invention is following:
A kind of distributed battery electric supply installation is used to data center's power supply, and said data center comprises a plurality of rack management modules and is arranged at the administration module on each rack management module; Said electric supply installation comprises dc power supply unit administration module and the battery module that is arranged on each rack management module; On the same rack management module; Said dc power supply unit administration module is connected with battery module with administration module respectively; Communicate through the communication line administration module between said administration module and the battery module, said dc power supply unit administration module is server power supply and for said battery module charge power supply is provided; Interconnect between each battery module, communicate through the communication line administration module between each battery module, each battery module can be the server power supply on any frame.
Preferably; Said battery module comprises battery management submodule and battery pack; Said battery pack is connected with the dc power supply unit administration module; Communicate through communication line respectively between the server on said battery management submodule and battery pack and this frame, with according to the control of said administration module power consumption and said battery capacity to the power supply of administration module and obtain charging from the dc power supply unit administration module.
Preferably, said battery management submodule comprises processing unit and coupled communication unit, measuring unit and performance element; Said measuring unit is connected with administration module with battery pack respectively, measures battery capacity and administration module need for electricity in real time and the information of obtaining is sent to said processing unit; The information that said processing unit sends according to said processing unit, sending controling instruction is to said performance element, and said performance element is connected with battery pack and dc power supply unit administration module, controls discharging and recharging of battery; Said communication unit is connected with server, receives or transmission information.
Preferably; Said dc power supply unit administration module comprises successively the AC/DC convertor that connects, transformer, switch, the processor of the said on off state of control, the civil power break detection device that is connected with processor; When said civil power break detection device detection civil power is logical; Civil power is transformed to direct current through the said AC/DC convertor of crossing, and is that the administration module power supply perhaps is said charging battery module simultaneously thereby control said direct current by the processor control switch; When said civil power break detection device detected the civil power interruption, the processor control switch was the administration module power supply from making battery pack.
Preferably, said electric supply installation also comprises the administration module that is used to manage each battery module power supply, communicates through communication line between said administration module and each battery module.
The present invention also provides a kind of a kind of distributed power supply method based on above-mentioned distributed battery electric supply installation, comprises step:
S1: battery module detects the wherein battery capacity C of battery pack in real time
i, the power consumption L of i ∈ Θ and server
i, i ∈ Θ, and testing result sent to administration module; Wherein i is the numbering of each frame, and Θ is the set that all rack management modules are formed;
S2: administration module is done according to testing result as is judged,
If C
i-L
i>=C
Th, then the administration module on the frame i is supplied power by the battery module on this frame; Wherein, C
ThThe capacity lower threshold that can discharge for battery module on this frame;
If C
i-L
i<c
Th, then the administration module on the frame i is C by the battery module amount of power supply on this frame
i-C
Th, administration module calculates required extra amount of power supply Δ L
i=L
i-C
i+ C
Th
S3: administration module is with all C that satisfies condition
i-L
i<c
ThFrame i be recorded in the set Ψ in;
S4: definition frame j, (battery module on the Θ-Ψ) is x except that be on this frame the administration module power supply for gathering the electric weight that administration module provides on the Ψ mid frame to j ∈
j, j ∈ (Θ-Ψ);
S5: administration module basis
x
j>=0,
Control frame j, j ∈ (the battery module power supply on the Θ-Ψ).
Preferably, said step S5 is specially:
A, administration module computer rack j, j ∈ (Θ-Ψ) go up the extra loss of supply rate of battery module, promptly
J ∈ (Θ-Ψ);
B, administration module definition cooperate optimization model,
min:
s.t.
x
j≥0,
C, administration module are found the solution x
j, j ∈ (Θ-Ψ);
D, administration module are with finding the solution x
j, (Θ-Ψ) feeds back to each frame j to j ∈, the j ∈ (battery module of Θ-Ψ);
E, battery module are according to x
j, j ∈ (control of Θ-Ψ) frame j, j ∈ (the battery module power supply on the Θ-Ψ).
Preferably, be specially among the said step e: frame j, (battery module on the Θ-Ψ) detects the capacity of each cell in the battery pack through the measuring unit in the battery management submodule to j ∈ in real time, and processing unit is according to x
jWith the volume controlled battery switch array of each cell, the compound mode of battery pack in the battery module of dynamically recombinating, the control power supply.
(3) beneficial effect
The present invention is through separating the energy-storage battery component; And be deployed in each frame of data center with distributed way; With the server common frame, battery module directly is the server power supply, thereby improves the power supplying efficiency of data center's electric power system and the space availability ratio of data center effectively.
Description of drawings
Fig. 1 is the sketch map of a kind of distributed battery electric supply installation of the present invention;
Fig. 2 is the sketch map of battery module among Fig. 1;
Fig. 3 is the sketch map of dc power supply unit among Fig. 1;
Fig. 4 is the flow chart that administration module distributes power supply among Fig. 1;
Fig. 5 is the flow chart of each battery module method of supplying power to of administration module cooperate optimization among Fig. 1;
Fig. 6 is the compound mode controllable switching array sketch map of battery pack among Fig. 2.
Among the figure, 101: server; 102: dc power supply unit; 103: battery module; 104: frame; 105: administration module; 106: dc bus; 107: communication line; 108: gate-controlled switch.
Embodiment
Below in conjunction with accompanying drawing and embodiment, specific embodiments of the invention is done and is further described.
Embodiment 1
A kind of distributed battery electric supply installation as shown in Figure 1 is used to data center power supply, and data center comprises a plurality of frame 104, is arranged at the server 101 on each frame 104; The distributed battery electric supply installation comprises the dc power supply unit 102 and battery module 103 that is arranged on each frame 101; Dc power supply unit 102 is connected through dc bus 106 with battery module 103 with server 101 respectively; When mains-supplied just often; Dc power supply unit 102 converts electric main into direct current and supplies power to server, and is battery module 103 chargings; When civil power interrupts, battery module 103 will independently be judged power down and to server 101 power supply in each frame; Communicate through communication line 107 between each battery module 103 and with server 101, any battery module 103 can be to 101 direct current supplys of the server on any frame.
Battery management submodule as shown in Figure 2 comprises: processing unit and the communication unit, measuring unit and the performance element that link to each other with processing unit; Measuring unit is connected with server 101 with battery pack respectively, measures battery capacity and server 101 needs for electricity in real time and measurement result is sent to processing unit; To performance element, performance element is connected with battery pack and dc power supply unit processing unit according to the measurement result sending controling instruction, and through the compound mode of control battery, the output electric weight of adjustment battery pack is controlled discharging and recharging of battery pack; Communication unit is connected with server 101 through communication line, receives or transmission information, and communication mode can be CAN bus, RS485 or Ethernet.
Dc power supply unit 102 as shown in Figure 3 combines power supply system of selection flow process as shown in Figure 4: the first dc power supply unit interface is connected with processor; The second dc power supply unit interface connects K switch 2; Civil power is connected with selector switch K1 through AC/DC convertor (AC/DC) and transformer, and K switch 1 is controlled by processor with K switch 2 states.Civil power break detection device sends to processor with civil power through and off signal, the closure of processor control selector switch K1 with open and three kinds of states of K switch 2, promptly with connecting terminal 1, connecting terminal 2 and vacant.K1 and K2 combination realize following function: when K1 closure and K2 were vacant, server 101 was by mains-supplied; When K1 closure and K2 were communicated with contact 1, server 101 was by mains-supplied and battery module 103 chargings; When K1 opens and K2 is communicated with contact 1, server is by battery module 103 power supplies.
Above-mentioned electric supply installation also comprises the administration module 105 that is used to manage each battery module 103 power supplies, communicates through communication line 107 between administration module 105 and each battery module 103.
Power supply system of selection flow process as shown in Figure 4 specifically comprises:
Step 1: when mains-supplied just often; Civil power break detection device " leads to " signal with civil power and sends to processor, and the battery capacity that processing unit is measured according to measuring unit in the battery module 103, sends control signal and gives dc power supply unit 102; If battery capacity less than; Then processor control K1 closure and K2 are communicated with contact 1, and promptly dc power supply unit 102 converts electric main into direct current to server 101 power supplies, and to battery module 103 chargings; If battery capacity is full, then processor control K1 closure and K2 are vacant, and server 101 is by mains-supplied.
Step 2: when civil power interrupts; Civil power break detection device sends to processor with the civil power signal that " breaks "; Processor control switch K1 opens and K switch 2 is communicated with contact 1, and server 101 is by battery module 103 power supplies, simultaneously; Under the cooperate optimization of administration module, any battery module 103 can be to server 101 direct current supplys on any frame 104.
Embodiment 2
Distributed power supply method according to above-mentioned distributed power supply device as shown in Figure 5 comprises step:
S1: the battery module measuring unit is measured battery capacity C in real time
i,
With power supply load L
i,
Wherein, i is the numbering of each frame, and Θ is data center's mid frame set, and gained information is sent to administration module 105.
S2: administration module 105 is done according to testing result as is judged,
If C
i-L
i>=C
Th, then the server 101 on the frame i is by 103 power supplies of the battery module on this frame; Wherein, C
ThThe capacity lower threshold that can discharge for battery module on this frame 103;
If C
i-L
i<c
Th, then the server 101 on the frame i is C by 103 amount of power supply of the battery module on this frame
i-C
Th, administration module 105 calculates required extra amount of power supply Δ L
i=L
i-C
i+ C
Th
S3: administration module 105 is with all C that satisfies condition
i-L
i<c
ThFrame i be recorded in the set Ψ in;
S4: definition frame j, (battery module 103 on the Θ-Ψ) is x except that be on this frame server 101 power supplies for gathering the electric weight that server 101 provides on the Ψ mid frame to j ∈
j, j ∈ (Θ-Ψ);
S5: administration module 105 bases
x
j>=0,
Control frame j, j ∈ (battery module 103 power supplies on the Θ-Ψ).Through to the real-time management of battery capacity, the power supply of each battery module 103 is distributed, thereby improve the reliability and the power supplying efficiency of data center's electric power system effectively with the power supply load.
Further, above-mentioned steps S5 is specially:
A, administration module computer rack j, j ∈ (Θ-Ψ) go up the extra loss of supply rate of battery module, promptly
J ∈ Θ-Ψ;
B, administration module 105 definition cooperate optimization models,
min:
s.t.
x
j≥0,
C, administration module 105 adopt dynamic programming method to find the solution x
j, j ∈ (Θ-Ψ).
D, administration module 105 are with finding the solution x
j, (Θ-Ψ) feeds back to each frame j to j ∈, the j ∈ (battery module 103 of Θ-Ψ);
E, administration module 105 are according to x
j, j ∈ (Θ-Ψ), through the compound mode of real-time regulated battery pack or through current regulating circuit control frame j, the j ∈ (power supply of the battery module 103 on the Θ-Ψ).Through setting up the cooperate optimization model, the distributed power supply method has been done further optimization, reduced energy consumption, improved utilization rate of electrical.
Be specially among the said step e: frame j, (battery module 103 on the Θ-Ψ) detects each cell as shown in Figure 6 in the battery pack such as the capacity of battery #1, battery #2 etc. through the measuring unit in the battery management submodule to j ∈ in real time, and processing unit is according to x
jWith the opening and closing combination of gate-controlled switch 108 in the battery switch array shown in volume controlled Fig. 6 of each cell, the compound mode of battery pack in the battery module 103 of dynamically recombinating, control power supply.
Above execution mode only is used to explain the present invention; And be not limitation of the present invention; The those of ordinary skill in relevant technologies field; Under the situation that does not break away from the spirit and scope of the present invention, can also make various variations and modification, so all technical schemes that are equal to also belong to protection category of the present invention.
Claims (8)
1. a distributed battery electric supply installation is used to data center's power supply, and said data center comprises a plurality of frames (104) and is arranged at the server (101) on each frame (104); It is characterized in that: said electric supply installation comprises dc power supply unit (102) and the battery module (103) that is arranged on each frame (104); On the same frame (104); Said dc power supply unit (102) is connected with battery module (103) with server (101) respectively; Communicate through communication line (107) between said server (101) and the battery module (103), said dc power supply unit (102) provides charge power supply for server (101) power supply and for said battery module (103); Each battery module interconnects between (103), communicates through communication line (107) between each battery module (103), and each battery module (103) can be server (101) power supply on any frame (104).
2. distributed power supply device according to claim 1; It is characterized in that: said battery module (103) comprises battery management submodule and battery pack; Said battery pack is connected with dc power supply unit (102); Communicate through communication line (107) respectively between the server (101) on said battery management submodule and battery pack and this frame (104), with according to the volume controlled of said server (101) power consumption and said battery pack to the power supply of server (101) and obtain charging from dc power supply unit (102).
3. distributed power supply device according to claim 2 is characterized in that: said battery management submodule comprises processing unit and the communication unit, measuring unit and the performance element that link to each other with said processing unit; Said measuring unit is connected with server (101) with battery pack respectively, measures battery capacity and server (101) need for electricity in real time and measurement result is sent to said processing unit; Said processing unit is according to said measurement result, and sending controling instruction is to said performance element, and said performance element is connected with battery pack and dc power supply unit (102), controls discharging and recharging of battery pack; Said communication unit is connected with server (101), receives or transmission information.
4. distributed power supply device according to claim 3; It is characterized in that: said dc power supply unit (102) comprises successively the AC/DC convertor that connects, transformer, switch, the processor of the said on off state of control, the civil power break detection device that is connected with processor; When said civil power break detection device detection civil power is logical; Said AC/DC convertor is transformed to direct current with civil power, is that server (101) power supply perhaps is said battery module (103) charging simultaneously thereby control said direct current by the processor control switch; When said civil power break detection device detects the civil power interruption, be server (101) power supply thereby the processor control switch makes battery pack.
5. distributed power supply device according to claim 4; It is characterized in that: said electric supply installation also comprises the administration module (105) that is used to manage each battery module (103) power supply, communicates through communication line (107) between said administration module (105) and each battery module (103).
6. the distributed power supply method of a distributed power supply device according to claim 5 comprises step:
S1: battery module (103) detects the wherein battery capacity C of battery pack in real time
i, the power consumption L of i ∈ Θ and server
i, i ∈ Θ, and testing result sent to administration module (105); Wherein i is the numbering of each frame, and Θ is the set that institute's organic frame (104) is formed;
S2: administration module (105) is done according to testing result as is judged,
If C
i-L
i>=C
Th, then the server (101) on the frame i is supplied power by the battery module on this frame (103); Wherein, C
ThThe capacity lower threshold that can discharge for battery module on this frame (103);
If C
i-L
i<c
Th, then the server (101) on the frame i is C by the battery module on this frame (103) amount of power supply
i-C
Th, administration module (105) calculates required extra amount of power supply Δ L
i=L
i-C
i+ C
Th
S3: administration module (105) is with all C that satisfies condition
i-L
i<c
ThFrame i be recorded in the set Ψ in;
S4: definition frame j, (it be that the electric weight that provides for the server of gathering on the frame among the Ψ (101) was x server on this frame (101) was supplied power that the battery module (103) on the Θ-Ψ) removes to j ∈
j, j ∈ (Θ-Ψ);
S5: administration module (105) basis
x
j>=0,
Control frame j, j ∈ (battery module (103) power supply on the Θ-Ψ).
7. distributed optimization method of supplying power to according to claim 6 is characterized in that said step S5 is specially:
A, administration module (105) computer rack j; (Θ-Ψ) goes up the extra loss of supply rate of battery module (103), i.e.
j ∈ Θ-Ψ to j ∈;
B, administration module (105) definition cooperate optimization model,
min:
s.t.
x
j≥0,
C, administration module (105) are found the solution x
j, j ∈ (Θ-Ψ);
D, administration module (105) are with finding the solution x
j, (Θ-Ψ) feeds back to each frame j to j ∈, the j ∈ (battery module (103) of Θ-Ψ);
E, battery module (103) are according to x
j, j ∈ (control of Θ-Ψ) frame j, j ∈ (battery module (103) power supply on the Θ-Ψ).
8. distributed optimization method of supplying power to according to claim 7; It is characterized in that; Be specially among the said step e: frame j; (battery module (103) on the Θ-Ψ) detects the capacity of each cell in the battery pack through the measuring unit in the battery management submodule to j ∈ in real time, and processing unit is according to x
jWith the volume controlled battery switch array of each cell, the compound mode of battery pack in the battery module (103) of dynamically recombinating, control power supply.
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| CN201210353456.7A CN102842936B (en) | 2012-09-20 | 2012-09-20 | Distributed battery power supply device and method |
| US13/677,419 US9502893B2 (en) | 2012-09-20 | 2012-11-15 | Distributed power supply system and method |
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| CN106340947B (en) * | 2016-08-31 | 2019-02-01 | 浙江万马新能源有限公司 | A kind of multi-load parallel electric source module dynamic allocation method compared based on weight |
| CN109901071A (en) * | 2019-03-15 | 2019-06-18 | 中国农业大学 | A kind of dynamic can recombinate energy-storage battery detection system |
| CN114640102A (en) * | 2022-05-18 | 2022-06-17 | 深圳市高斯宝电气技术有限公司 | Direct current power supply |
| CN116647003A (en) * | 2023-04-14 | 2023-08-25 | 云储新能源科技有限公司 | Full direct current power supply method and system for data center |
| CN116647003B (en) * | 2023-04-14 | 2024-04-05 | 云储新能源科技有限公司 | Full direct current power supply method and system for data center |
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| CN102842936B (en) | 2014-11-19 |
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