CN102183986A - Multi-source power supply control method, device and system - Google Patents
Multi-source power supply control method, device and system Download PDFInfo
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- CN102183986A CN102183986A CN2011100564890A CN201110056489A CN102183986A CN 102183986 A CN102183986 A CN 102183986A CN 2011100564890 A CN2011100564890 A CN 2011100564890A CN 201110056489 A CN201110056489 A CN 201110056489A CN 102183986 A CN102183986 A CN 102183986A
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Abstract
The invention provides a multi-source power supply control method, device and system. The method comprises the steps of: detecting the power consumption of a load; comparing the power consumption of the load with rated powers of N on-line power supplies respectively; and when the summation of the rated powers of M on-line power supplies is larger than or equal to the power consumption of the load and the summation of the rated powers of the M-1 on-line power supplies is smaller than the power consumption of the load, making the M on-line power supplies supply power to the load, wherein M is not smaller than 1 and not larger than N. In the invention, by means of real-time measurement of the power consumption of the load, feedback regulation of the output voltage of all power supplies in a plurality of power supply systems and power supply for the load only by the power supply with the highest power supply efficiency, the power supply states of all the power supplies are changed, and the load is dynamically adapted to, so that the power supply efficiency of the entire machine reaches the maximum.
Description
Technical field
The present invention relates to a kind of multiple feed control method, device and multi-power supply system, belong to the multiple feed technical field.
Background technology
In multi-power system, give some electric simultaneously in order to make a plurality of power supplys, be typically designed to simple current-sharing mode, that is: the output current of each power supply is identical, just each power supply mean allocation load power consumption.As shown in Figure 1, a load is powered simultaneously by three power supplys, in use, design according to current-sharing during these three power supplys, divides load equally, such as: when load was 300w, then each power supply provided the power supply power consumption of 100w.And if in the use, some power supplys damage, and all the other two power supplys will directly substitute trouble power, and mean allocation load again is to reach the redundant effect of seamless switching.
But; when load system operates; the whole power supply utilization rate of multi-power system is not the state of operating at full capacity that always is in; when designing, common many power supplys all can consider a bit redundant effect; such as: use 2 300w power supplys usually and power for a load that is 300w to the maximum; just offer the load of maximum 300w with the capacity of power of 600w; can guarantee like this to break down one the time when two power supplys; system is normal operation still; and this 300w load neither be fixed; load in most cases is in the scope inner conversion less than 300w; so after adopting the current-sharing mode; each power supply will be born identical certain value less than 150w, thereby each power supply is used according to the utilization factor less than 50%.But power-efficient is along with the variation of power utilization rate changes, and wherein, the power utilization rate is meant the actual output power consumption of power supply and the ratio of specified maximum work output consumption; Power-efficient is meant actual output power consumption and the actual ratio of importing power consumption.Fig. 2 is an existing power supply efficiency curve synoptic diagram, and the power-efficient curve is the curve of expression power-efficient and power utilization rate relation, and English words is wherein represented the model of existing power supply.As shown in Figure 2, the maximal efficiency of power supply all is to reach in 50% to 80% utilization factor usually, so existing current-sharing mode might not access the maximal efficiency of whole power supply, thereby causes the waste of power-efficient.
The many power supplys of another kind of the prior art are designed to master-slave redundancy power supply design, it is by software control, with the power supply in the multi-power system, a part is set to primary power cource, and a part is set to standby power supply, the primary power cource normal power supply, standby power supply enters holding state and does not power, when software discovery primary power cource fault, again standby power supply is opened, work on so that take over trouble power.This design needs the special power supply that can control and visit by communication bus, and is controlled by software, and stability is not high, is subjected to software impact easily, and realization condition is limited, and limitation is too strong.
Summary of the invention
The invention provides a kind of multiple feed control method, device and multiple feed control system, in order to improve the complete machine power supplying efficiency.
One aspect of the present invention provides a kind of multiple feed control method, comprising:
Detect load power consumption;
Described load power consumption is compared with the rated power of N power supply on the throne respectively;
When the summation of the rated power of M power supply on the throne during less than described load power consumption, is described electric by described M power supply on the throne more than or equal to the summation of the rated power of described load power consumption and M-1 power supply on the throne only, wherein, 1≤M≤N.
The present invention provides a kind of multiple feed control device on the other hand, connects load and a plurality of power supply, comprising:
Power consumption detection circuit, its electric current flows into the power supply output terminal that end connects described a plurality of power supplys respectively, and the electric current outflow end connects described load, is used to detect load power consumption;
Feedback regulating circuit, its detection signal input end connects the output terminal of described power consumption detection circuit, signal input part on the throne connects the signal output part on the throne of described a plurality of power supplys respectively, the FEEDBACK CONTROL end connects described a plurality of power source voltage control end respectively, is used for described load power consumption is compared with the rated power of N power supply on the throne respectively; When the summation of the rated power of M power supply on the throne more than or equal to the summation of the rated power of described load power consumption and M-1 power supply on the throne during less than described load power consumption, send the pressure regulation signal to described M power source voltage control end on the throne, making this M power supply on the throne is described electric, wherein, 1≤M≤N.
Further embodiment of this invention provides a kind of multiple feed control system, comprise above-mentioned multiple feed control device, and comprise: a plurality of power supplys, the electric current that the power supply output terminal of each power supply connects described multiple feed control device flows into end, and signal output part on the throne connects the signal input part on the throne of described multiple feed control device.
The present invention is by real-time sensing lead power consumption, each electric power output voltage of feedback adjusting multi-power system is electric by the highest power supply of power-efficient only, thereby changes the power supply state of each power supply, the dynamically adapting load makes the complete machine power-efficient reach maximum.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply, apparently, accompanying drawing in describing below is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of existing multi-power supply system;
Fig. 2 is an existing power supply efficiency curve synoptic diagram;
Fig. 3 is the process flow diagram of multiple feed control method embodiment of the present invention;
Fig. 4 is the structural representation of multiple feed control system embodiment one of the present invention;
Fig. 5 is the optional circuit diagram of power consumption detection circuit in the system shown in Figure 4;
Fig. 6 is the structural representation of multiple feed control system embodiment two of the present invention;
Fig. 7 is the explanation synoptic diagram of system shown in Figure 6 diode-isolated effect;
Fig. 8 is the optional circuit diagram of feedback regulating circuit in the system shown in Figure 4.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer, below in conjunction with the accompanying drawing in the embodiment of the invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
Fig. 3 is the process flow diagram of multiple feed control method embodiment of the present invention, as shown in the figure, comprises the steps:
Wherein, described load power consumption is meant the real time power consumption that loads on when detected, for example can represent with modes such as equivalent electric flow valuves.
Wherein, N represents the quantity of power supply on the throne in a plurality of power supplys, specifically can determine N power supply on the throne arranged in described a plurality of power supply according to the signal on the throne that comes from a plurality of power supplys, described signal on the throne shows the state on the throne of this power supply at the signal of the signal output part output on the throne from power interface.For example, if this signal on the throne is a logic low, show that then corresponding power supply is not on the throne; If this signal on the throne is a logic high, show that then corresponding power supply is on the throne.But (can be described as again: board mounted power), it is the high signal on the throne of output logic all the time, but therefore non-plug power supply is on the throne for fixing for non-plug power supply.
Wherein, described rated power is meant the output power in the time of can obtaining maximum power-efficient, and it can obtain by curve shown in Figure 2; M represents to be enough to the minimum value for the power data of described electric.For example, when the rated power of rated power two, three or four power supplys of a power supply less than load power consumption all greater than or during the even load power consumption, M=2.Except this M power supply was electric, other power supplys were not all to electric.
The described method of present embodiment is by real-time sensing lead power consumption, each electric power output voltage of feedback adjusting multi-power system is electric by the highest power supply of power-efficient only, thereby changes the power supply state of each power supply, the dynamically adapting load makes the complete machine power-efficient reach maximum.
Fig. 4 is the structural representation of multiple feed control system embodiment of the present invention, as shown in the figure, this system comprises multiple feed control device 10 and a plurality of power supply, the electric current that the power supply output terminal of each power supply connects the power consumption detection circuit 11 in the described multiple feed control device 10 flows into end 11A, signal output part on the throne connects the signal input part 12A on the throne of feedback regulating circuit 12 in the described multiple feed control device 10, wherein, described multiple feed control device 10 comprises at least: power consumption detection circuit 11 and feedback regulating circuit 12 specify as follows:
The electric current of described power consumption detection circuit 11 flows into the power supply output terminal that end 11A connects described a plurality of power supplys respectively, and the electric current outflow end connects described load, is used to detect load power consumption.As shown in Figure 5, this power consumption detection circuit 11 can comprise resistance, resistance can be 1 ohm, the electric current of this resistance flows into the power supply output terminal that end connects described a plurality of power supplys respectively, and to described feedback regulating circuit 12 output HIGH voltage values, the electric current outflow end of this resistance connects described load, and to described feedback regulating circuit 12 output LOW voltage values.
The detection signal input end of described feedback regulating circuit 12 connects the output terminal of described power consumption detection circuit 11, signal input part 12A on the throne connects the signal output part on the throne of described a plurality of power supplys respectively, and FEEDBACK CONTROL end 12B connects described a plurality of power source voltage control end respectively.This feedback regulating circuit 12 at first compares described load power consumption respectively with the rated power of N power supply on the throne; When the summation of the rated power of M power supply on the throne more than or equal to the summation of the rated power of described load power consumption and M-1 power supply on the throne during less than described load power consumption, send the pressure regulation signal to described M power source voltage control end on the throne, making this M power supply on the throne is described electric, wherein, 1≤M≤N.Wherein, N represents the quantity of power supply on the throne in a plurality of power supplys; M represents to be enough to the minimum value for the power data of described electric.
The described system of present embodiment is by real-time sensing lead power consumption, each electric power output voltage of feedback adjusting multi-power system is electric by the highest power supply of power-efficient only, thereby changes the power supply state of each power supply, the dynamically adapting load makes the complete machine power-efficient reach maximum.And described device uses easy hardware circuit to realize, need not too much software and participate in, cost is low, realize easily, and extensibility is strong.
Fig. 6 is the structural representation of multiple feed control system embodiment two of the present invention, as shown in the figure, the electric current of the power consumption detection circuit 11 in described multiple feed control device 10 flows between the power supply output terminal of holding 11A and each described power supply and further is serially connected with diode, the positive pole of this diode connects described power supply output terminal, and negative pole connects described electric current and flows into end 11A.For example, in Fig. 6, first diode D1 is arranged at first power series; Be serially connected with second diode D2 at second power supply; At A power series A diode DA arranged.Below be that example describes with first diode D1 and second diode D2:
As shown in Figure 7, as figure, suppose the output voltage V IN1=12V of first power supply; The output voltage V IN2=11V of second power supply, total output voltage VO UT=11.3V.Because VIN1-VOUT=0.7V, thus first diode D1 conducting, output current, and VIN2＜VOUT, so second diode D2 will be in off state, can't output current, so just accomplished freely controlling of each power supply power supply state.But, owing to this moment second power supply output circuit not turn-off be that voltage edges down, so, when making VIN1＜12V when first power fail, VOUT also can be reduced to corresponding 11V-0.7V=10.3V, at this moment, D2 is also with conducting, and begins normal output current by second source.
As mentioned above, by using diode to play buffer action.If do not use diode, then when the input voltage of a plurality of power supplys not simultaneously, not only can influence the homogeneity of output current, also can make high-tension power supply carry out reverse charging, thereby cause power supply to damage to the power supply of low-voltage.
By the described method of present embodiment, do not operating again under the prerequisite of power supply not, realized the seamless redundant handoff functionality of multiple power supplies, avoided owing to power supply and the complete machine that brings of the switching delay of the power supply state risk of electricity down not, thereby guaranteeing under the constant situation of multi-power system end redundant ability, can be so that the power-efficient of complete machine reach maximization, thus actual energy consumption saved.
Below be the optional circuit diagram that example illustrates above-mentioned feedback regulating circuit 12 with Fig. 8, as shown in Figure 8, this feedback regulating circuit 12 can comprise subtracter, a plurality of comparer, not gate arithmetical unit and a plurality of and door arithmetical unit.Wherein, described subtracter flows into end with the electric current of described resistance respectively and links to each other with the electric current outflow end, be used for the high-voltage value and the low voltage value that come from described power consumption detection circuit are carried out subtraction, with the difference that obtains equivalent electric flow valuve as described load power consumption.V=I*R can know according to the current/voltage computing formula, and for 1 ohm resistance, its both end voltage difference promptly equals electric current, therefore can use the equivalent electric flow valuve to represent the value of load power consumption.
The quantity of described a plurality of comparers is identical with the quantity of described a plurality of power supplys, in Fig. 8, for convenience of explanation, suppose the quantity A=3 of a plurality of power supplys, correspondingly, the quantity of comparer is 3 also, is respectively first comparer Q1, second comparer Q2 and the 3rd comparer Q3.The reverse input end of each comparer connects the output terminal of described subtracter, positive input is set to corresponding equivalent current threshold value, for example in Fig. 8, be shown as the equivalent electric flow valuve sum of the rated power of the equivalent electric flow valuve sum of rated power of equivalent electric flow valuve, first power supply of I2=and second power supply of the rated power of first power supply of I1=and first power supply of I3=, second power supply and the 3rd power supply.Wherein, the equivalent electric flow valuve of rated power obtains by conversion in advance, so that can compare with the equivalent electric flow valuve of load power consumption.
Need to prove that herein in shown in Figure 8 giving an example, the signal on the throne of the comparative result of the 3rd comparer Q3 and the 3rd power supply does not need to participate in logical operation.The logical relation of each signal is as shown in table 1 in the circuit shown in Figure 8:
Table 1
Wherein, X represents arbitrary value; For signal on the throne, 1 expression is on the throne, and 0 expression is not on the throne; For the pressure regulation signal, it is high pressure that power supply is adjusted in 1 expression, i.e. normal power supply, and it is low pressure that power supply is adjusted in 0 expression, does not promptly power.If the equivalent electric flow valuve that above-mentioned three comparers compare load power consumption, is then represented the power supply power supply greater than I 3 and can't satisfy the demand of load power consumption that complete machine can't be worked.
Need to prove that herein circuit diagram shown in Figure 8 is as an example implementation only, those skilled in the art can design other forms of circuit structure according to the logical relation shown in the table 1, all in the protection domain of this patent.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be finished by the relevant hardware of programmed instruction, aforesaid program can be stored in the computer read/write memory medium, this program is carried out the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (6)
1. multiple feed control method is characterized in that comprising:
Detect load power consumption;
Described load power consumption is compared with the rated power of N power supply on the throne respectively;
When the summation of the rated power of M power supply on the throne during less than described load power consumption, is described electric by described M power supply on the throne more than or equal to the summation of the rated power of described load power consumption and M-1 power supply on the throne only, wherein, 1≤M≤N.
2. method according to claim 1, also comprise before it is characterized in that described load power consumption compared with the rated power of N power supply on the throne respectively: determining according to the signal on the throne that comes from a plurality of power supplys has N power supply on the throne in described a plurality of power supply.
3. a multiple feed control device connects load and a plurality of power supply, it is characterized in that comprising:
Power consumption detection circuit, its electric current flows into the power supply output terminal that end connects described a plurality of power supplys respectively, and the electric current outflow end connects described load, is used to detect load power consumption;
Feedback regulating circuit, its detection signal input end connects the output terminal of described power consumption detection circuit, signal input part on the throne connects the signal output part on the throne of described a plurality of power supplys respectively, the FEEDBACK CONTROL end connects described a plurality of power source voltage control end respectively, is used for described load power consumption is compared with the rated power of N power supply on the throne respectively; When the summation of the rated power of M power supply on the throne more than or equal to the summation of the rated power of described load power consumption and M-1 power supply on the throne during less than described load power consumption, send the pressure regulation signal to described M power source voltage control end on the throne, making this M power supply on the throne is described electric, wherein, 1≤M≤N.
4. device according to claim 3, it is characterized in that described power consumption detection circuit comprises resistance, the electric current of this resistance flows into the power supply output terminal that end connects described a plurality of power supplys respectively, and to described feedback regulating circuit output HIGH voltage value, the electric current outflow end of this resistance connects described load, and to described feedback regulating circuit output LOW voltage value.
5. device according to claim 3, it is characterized in that between the electric current of described power consumption detection circuit flows into the power supply output terminal of end and each described power supply, further being serially connected with diode, the positive pole of this diode connects described power supply output terminal, and negative pole connects described electric current and flows into end.
6. multiple feed control system, comprise arbitrary described multiple feed control device in the claim 3～5, it is characterized in that also comprising: a plurality of power supplys, the electric current that the power supply output terminal of each power supply connects described multiple feed control device flows into end, and signal output part on the throne connects the signal input part on the throne of described multiple feed control device.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103001306A (en) * | 2011-09-15 | 2013-03-27 | 硕天科技股份有限公司 | Parallel module control method for uninterrupted power supply |
| CN103019359A (en) * | 2011-09-23 | 2013-04-03 | 中国科学院声学研究所 | Method, device and ATCA (Advanced Telecom Computing Architecture) carrier board for dynamically allocating power to AMC (Advanced Mezzanine Card) |
| CN103149908A (en) * | 2013-02-26 | 2013-06-12 | 中兴通讯股份有限公司 | Power supply control method, device and equipment |
| CN103595119A (en) * | 2013-11-11 | 2014-02-19 | 上海航天测控通信研究所 | Direct-current power supply parallel control system |
| CN104765294A (en) * | 2015-03-20 | 2015-07-08 | 深圳欧陆通电子有限公司 | Power supply system and method, for reducing consumption intelligently, of system |
| CN108767967A (en) * | 2018-05-04 | 2018-11-06 | 新华三技术有限公司 | A kind of communication equipment, power module and its processing method |
| CN109639115A (en) * | 2018-12-27 | 2019-04-16 | 新华三信息安全技术有限公司 | A kind of power circuit |
| CN111352497A (en) * | 2020-02-29 | 2020-06-30 | 苏州浪潮智能科技有限公司 | Power consumption limiting method, system, equipment and medium for server |
| CN112350720A (en) * | 2020-10-10 | 2021-02-09 | 青岛信芯微电子科技股份有限公司 | Detection control circuit of phase-locked loop circuit and electronic product |
| CN112751406A (en) * | 2019-10-29 | 2021-05-04 | 台湾积体电路制造股份有限公司 | Power supply device, semiconductor process system and power management method |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103001306A (en) * | 2011-09-15 | 2013-03-27 | 硕天科技股份有限公司 | Parallel module control method for uninterrupted power supply |
| CN103019359A (en) * | 2011-09-23 | 2013-04-03 | 中国科学院声学研究所 | Method, device and ATCA (Advanced Telecom Computing Architecture) carrier board for dynamically allocating power to AMC (Advanced Mezzanine Card) |
| CN103019359B (en) * | 2011-09-23 | 2015-12-02 | 中国科学院声学研究所 | A kind of is the method for AMC card dynamic assignment power, device and ATCA support plate |
| CN103149908A (en) * | 2013-02-26 | 2013-06-12 | 中兴通讯股份有限公司 | Power supply control method, device and equipment |
| CN103149908B (en) * | 2013-02-26 | 2015-10-21 | 中兴通讯股份有限公司 | A kind of method for controlling power supply, device and equipment |
| CN103595119A (en) * | 2013-11-11 | 2014-02-19 | 上海航天测控通信研究所 | Direct-current power supply parallel control system |
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| CN104765294A (en) * | 2015-03-20 | 2015-07-08 | 深圳欧陆通电子有限公司 | Power supply system and method, for reducing consumption intelligently, of system |
| CN108767967A (en) * | 2018-05-04 | 2018-11-06 | 新华三技术有限公司 | A kind of communication equipment, power module and its processing method |
| CN108767967B (en) * | 2018-05-04 | 2020-04-03 | 新华三技术有限公司 | Communication equipment, power supply module and processing method thereof |
| CN109639115A (en) * | 2018-12-27 | 2019-04-16 | 新华三信息安全技术有限公司 | A kind of power circuit |
| CN109639115B (en) * | 2018-12-27 | 2020-11-06 | 新华三信息安全技术有限公司 | Power supply circuit |
| CN112751406A (en) * | 2019-10-29 | 2021-05-04 | 台湾积体电路制造股份有限公司 | Power supply device, semiconductor process system and power management method |
| CN111352497A (en) * | 2020-02-29 | 2020-06-30 | 苏州浪潮智能科技有限公司 | Power consumption limiting method, system, equipment and medium for server |
| CN112350720A (en) * | 2020-10-10 | 2021-02-09 | 青岛信芯微电子科技股份有限公司 | Detection control circuit of phase-locked loop circuit and electronic product |
| CN112350720B (en) * | 2020-10-10 | 2022-06-03 | 青岛信芯微电子科技股份有限公司 | Detection control circuit of phase-locked loop circuit and electronic product |
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Application publication date: 20110914 |