CN104113129B - Redundancy power supply system - Google Patents
Redundancy power supply system Download PDFInfo
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- CN104113129B CN104113129B CN201310140759.5A CN201310140759A CN104113129B CN 104113129 B CN104113129 B CN 104113129B CN 201310140759 A CN201310140759 A CN 201310140759A CN 104113129 B CN104113129 B CN 104113129B
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- 238000004891 communication Methods 0.000 claims abstract description 13
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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Abstract
The invention provides a kind of redundancy power supply system, it includes double power soruce supply device, and each double power soruce supply device includes a prime power circuit and a rear class power circuit; Wherein this rear class power circuit includes a controller, and this controller further includes an external communication ports and a level detection port again, and built-in multiple control model, includes a normal mode, a master mode and a standby mode; Wherein this external communication ports is for the control model of this controller of external setting-up, and level detection port coordinates the control model being set, and selection is as the use of the output of the machine power supply state, or as the use that judges outer machine power supply state, various control mode combinations so as to double power soruce supply device is changed, and be applicable to the demand of different electronic products.
Description
Technical field
The present invention relates to a kind of power system, especially relate to a kind of redundancy power supply system.
Background technology
Redundancy power supply system can provide stable dc power supply compared with single power supply supply, due to redundancy power supply systemSystem is integrated multiple power supply units with a rear panel module, and the rear class output circuit of each power supply unit includes a controller,To communicate by letter with this rear panel module, thus server installing redundancy power supply system, can be by rear panel module and each power supply unitCommunicate.
The method for controlling power supply of common redundant computer supply system is sharing control pattern, even each power supply unit placeUnder power supply output normal condition, make each power system on average share current server running required electric power, for instance,Taking double power soruce supply device as example, if operating electric power at present, server needs 1000W, each power supply unit is on average exported the electricity of 500WServer is given in source.
But electronic product purposes and environment for use are changeable at present, adopt the electronic product of redundant computer supply systemMay not be certain to be all suitable for sharing control pattern, but for manufacturer, customize different redundancies for various electronic productsComputer supplies system will make cost increase, and cause the difficulty of product storage, be necessary further improvement.
Summary of the invention
Because the sharing control mode of above-mentioned redundancy power supply system cannot meet diversified electronic product demand, thisInvention main purpose provides a kind of redundancy power supply system of improvement, to overcome the problems referred to above.
The technical way that used is in order to achieve the above object for making this redundancy power supply system include two electricitySource supply, it is defeated that wherein each power supply unit includes a prime power circuit, a rear class power circuit and is serially connected with power supplyGo out the electronic switch of end; Wherein this rear class power circuit and is controlled the controller that this electronic switch opens and closes; Wherein:
This controller obtains output voltage and output current from power output end, and include an external communication ports andOne level detection port, wherein this level detection port connects an earth resistance, and with the rear level power supply of another power supply unitThe level detection port of the controller of circuit connects; This controller comprises a normal mode, a master mode and a standby mould againFormula, when this controller is according to the output voltage and the output current that obtain at present this power output end, judgement at present power supply is normal,The pattern setting command transmitting according to external communication ports, and the voltage quasi position of the level detection port of another controller,Select the following power supply way of output:
If be set as normal mode, control this level detection port output HIGH voltage level, defeated with average load powerGo out;
If be set as master mode, further judge when current bearing power exceedes a heavily loaded performance number, with average loadPower stage, and control this level detection port output LOW voltage level; If judge, current bearing power is lower than a underloading powerWhen value, with full load power stage, and control this level detection port output HIGH voltage level; And
If be set as standby mode, first setting this level detection port is input port, to detect another power supply supplyThe voltage quasi position of the level detection port of the controller of device; If low-voltage level, with full load power or average load powerOutput; If high voltage level, with 0 bearing power output.
As shown in the above description, the present invention is built-in the controller of rear class power circuit various control pattern, and will be whereinOne input/output port coordinates the control model being set to select the use as the output of the machine power supply state, or as outside judgementThe use of machine power supply state, various control mode combinations so as to double power soruce supply device is changed, and is applicable to different electronic productsDemand.
Brief description of the drawings
Fig. 1 is the circuit diagram of redundancy power supply system one preferred embodiment of the present invention;
The control flow chart of each power supply unit that Fig. 2 A to 2C is redundancy power supply system of the present invention.
Reference numeral
10: redundancy power supply system 10a, 10b: power supply unit
11: prime power circuit 12: rear class power circuit
121a, 121b: controller 122: temperature sensor
13: electronic switch 20: rear panel module
30: electronic product
Detailed description of the invention
Shown in Fig. 1, be a preferred embodiment of redundancy power supply system 10 of the present invention, it includes twoPower supply unit 10a, 10b, also can one step coordinate a rear panel module 30 that connects this double power soruce supply device 10a, 10b. Wherein eachPower supply unit 10a, 10b are switched power supplier, and include a prime power circuit (circuit of power factor correction)11, a rear class power circuit 12 and is serially connected with the electronic switch 13 of power output end Vout; Wherein this rear class power circuit 12Include controller 121a, 121b that this electronic switch 13 of a control opens and closes.
This controller 121a obtains output voltage and output current from power output end Vout, and includes:
One external communication ports IIC, can be IIC COM1, to receive the pattern setting command transmitting outside; And
One level detection port I/O, connects an earth resistance R, and with the rear class power circuit of another power supply unit 10bThe level detection port I/O of 12 controller 121b connects.
The protocol format of above-mentioned pattern setting command is as shown in the table:
In addition, in this controller 121a, have a normal mode, a master mode and a standby mode, when this controller121a, 121b are according to the output voltage and the output current that obtain at present this power output end Vout, and judgement at present power supply is normal,The pattern setting command transmitting according to external communication ports IIC, and the level detection port I/O of another controller 121bVoltage quasi position, select the following power supply way of output:
If be set as normal mode, control this level detection port I/O output HIGH voltage level, with average load powerOutput;
If be set as master mode, further judge when current bearing power exceedes a heavily loaded performance number, with average loadPower stage, and control this level detection port I/O output LOW voltage level; If judge, current bearing power is lower than a underloading meritWhen rate value, with full load power stage, and control this level detection port I/O output HIGH voltage level; And
If be set as standby mode, first setting this level detection port I/O is input port, supplies to detect another power supplyAnswer the voltage quasi position of the level detection port I/O of the controller 121b of device 10b; If low-voltage level, with full load power orAverage load power stage; If high voltage level, with 0 bearing power output.
As shown in the above description, the present invention is by built-in the controller of rear class power circuit 12 121 various control pattern, and generalWherein an input/output port coordinates the control model being set to select the use as the output of the machine power supply state, or as sentencingThe use of disconnected outer machine power supply state, can make double power soruce supply device change the various control mode combinations of following table, to be applicable to differenceThe demand of electronic product.
Shown in Fig. 2, owing to having above-mentioned multiple control model combination in controller, be below control of the present inventionDevice 121a processed judges the better flow process of setup control model program:
S10 when controller 121a starts, first making normal mode is default control pattern, makes level detection port I/O establishFor output port (O/P), and output LOW voltage level S11. Then, then judge the setup control that external communication ports IIC transmitsWhether order is master mode S12, if so, level detection port I/O is made as to output port (O/P), and output LOW voltageLevel, and change control model into master mode S13, reaffirm that current control model is S16 after master mode, as Fig. 2 B instituteShow, then judge the whether good S161 of current power supply state; If so, judge that current electronic product 30 is for heavy duty (as: system loadPower or the machine bearing power are more than 70%), at present bearing power is greater than heavily loaded performance number (> 70%) time S162, withAverage load power output power supply, and maintain level detection port I/O output LOW voltage level, now make to be set as standby modeThe controller 121b of power supply unit 10b low-voltage level S163 detected, and immediately with average load power output power supply,Divide heavily loaded power output. If judge that this electronic product is that (as: system load power is below 40% to underloading, or the machineBearing power is below 20%), S164 when bearing power is less than underloading performance number at present, this controller 121a is with full load meritRate output, and the S165 after (about 100ms) that postpones a period of time, be set as output port (O/P) by its level detection port I/O,And output HIGH voltage level S166.
Again as shown in Figure 2 A, if after controller 121a startup, judge the setup control order that external communication ports IIC transmitsFor standby mode S14, setting this level detection port I/O is input port (I/P) S15, and control model is made as to standbyPattern, reaffirms as S17 after standby mode, please refer to Fig. 2 C, whether judges the voltage quasi position of level detection port I/OFor high voltage level S171, if so, with 0 bearing power output (stopping power supply) S173; If judge the electricity of level detection portPressing level is low-voltage level, with full load power or average load power stage S172; If this means, examine under standby modeThe voltage quasi position that measures the level detection port I/O of another power supply unit (outer machine) 10b is low-voltage level S18, representativeRequire the machine to power, situation has two:
1. outer machine 10b cannot power.
2. outer machine 10b is under master mode, and electronic product is in heavy condition.
From the combination of above-mentioned multiple control models, if user's wish makes this redundancy power supply system 10 with current-sharing sideFormula power supply, sets double power soruce supply device 10a, 10b and is normal mode, and so double power soruce supply device 10a, 10b are with on averageBearing power (50%) out-put supply. If change electronic product greatly for bearing power, user can set wherein onePlatform power supply unit 10a is master mode, and another power supply unit 10b is standby mode, when the power supply of host modeSupply 10a judges that current electronic product 30 is for heavy duty, with average load power output power supply, and by its level detection portI/O is set as output port, and controls this level detection port I/O output LOW voltage level, now makes to be set as standby modeThe controller 121b of power supply unit 10b low-voltage level detected, and immediately with the output of average load power supply, divide heavy dutyPower output; If this electronic product 30 transfers underloading to, the power supply unit 10b that is set as host mode can judge at presentElectronic product 30 is underloading, and its level detection port I/O is set as to output port, and controls this level detection port I/OOutput HIGH voltage level, the controller that is now set as the power supply unit 10b of standby mode detects high voltage level, and stopsOnly power supply output.
If user establishes double power soruce supply device and is standby mode by mistake, because the inspection of the level of each controller 121a, 121bSurvey port I/O and be connected with earth resistance R, thus low-voltage level all detected, and together with average load power output power supply, avoidSet mistake and non-transformer output.
In addition, controller 121a, the 121b of each power supply unit 10a, 10b can be further according to current output voltages and defeatedGo out electric current and judged whether overvoltage, overcurrent condition, even can connect a temperature sensor 122, judged whether excess temperature shapeState, as controller 121a, 121b, judgement has aforementioned arbitrary state, controls its level detection port I/O output LOW voltage level.If the power supply unit 10a that is set as normal mode former detects overvoltage condition, by its level detection port I/O voltage standardPotential drop is low, and the power supply unit of another power supply unit 10b normal mode is detected after low-voltage level, with average load meritRate output changes full load power stage into, guarantees that electronic product 30 still can work smoothly.
Moreover controller 121a, the 121b of above-mentioned each power supply unit 10a, 10b has electric current in can be further and follows mouldFormula, if namely the controller 121a of one platform power supply unit 10a is set a pattern for this reason, can sets its level and detectPort I/O is input port, to detect the voltage of level detection port I/O of another power supply unit 10b controller 121bLevel, if the level detection port I/O of controller 121a is high voltage level, controller 121a can be according to its PERCOM peripheral communication endThe electric current that mouth IIC receives is followed order, adjusts the output voltage V ao1 of rear class power circuit 12, until output current catch up with electric currentFollow the current value of order, be so available for users to set voluntarily the bearing power output of double power soruce supply device 10a, 10b. For exampleBeing carried on heavily loaded power demand is 1000W, and wherein a power supply unit 10b is set as supplying 700W, another power supplySupply 10a can, according to the required current value of 300W, adjust output voltage V ao1. If set after a while the power supply supply of supply 700WDevice 10b cannot power for some reason, the level detection port I/O of its controller 121b meeting output LOW voltage level, and another electricityThe local controller 121a of source supply 10a can be to maintain load normal operation as preferential, with full load power stage.
Above-mentioned each controller wants, with 0 bearing power output (stopping output current), have the following concrete practice:
End this electronic switch 13: because this electronic switch 13 is serially connected in this power output end Vout, therefore cut-off electronic cuttingPass 13 stops electronic product 30 and takes out electric current. If this electronic switch 13 adopts a power transistor, when power transistor is not ledLogical, its parasitic diode D1 meeting conducting, therefore this power output end Vout still possesses terminal voltage, just this terminal voltage is output electricityPress Vao1 to deduct the conducting voltage of parasitic diode; So, the machine output voltage V ao2 is compared with another output voltage V bo2Low, electronic product 30 extracts compared with the electric current of the power supply unit of high output voltage, therefore the machine reaches the object of stopping power supply.
In sum, the present invention is by built-in the controller of rear class power circuit various control pattern, and a wherein inputOutput port coordinates the control model being set to select the use as the output of the machine power supply state, or as the outer machine power supply of judgementThe use of state, various control mode combinations so as to double power soruce supply device is changed, and is applicable to the demand of different electronic products.
Claims (9)
1. a redundant power electric power system, is characterized in that, includes double power soruce supply device, and wherein each power supply unit comprisesThere are a prime power circuit and a rear class power circuit; Wherein this rear class power circuit includes a controller; Wherein:
This controller obtains output voltage and output current from power output end, and includes an external communication ports and a levelDetection port, wherein the level test side of the controller of the rear class power circuit of this level detection port and another power supply unitMouth connects; The built-in normal mode of this controller, a master mode and a standby mode again; Again when this controller is according to obtaining at presentGet output voltage and the output current of this power output end, judgement at present power supply is normal, transmits according to external communication portsPattern setting command, and the voltage quasi position of the level detection port of another controller, select the following power supply way of output:
If be set as normal mode, control this level detection port output HIGH voltage level, with average load power stage;
If be set as master mode, further judge when current bearing power exceedes a heavily loaded performance number, with average load powerOutput, and control this level detection port output LOW voltage level; If while judging current bearing power lower than a underloading performance number,With full load power stage, and control this level detection port output HIGH voltage level; And
If be set as standby mode, first setting this level detection port is input port, to detect another power supply unitThe voltage quasi position of the level detection port of controller; If low-voltage level, with full load power or average load power stage;If high voltage level, with 0 bearing power output.
2. redundant power electric power system according to claim 1, is characterized in that, in this controller is further, has an electricityStream is followed pattern, follows pattern when controller judgement is set to this electric current, and setting its level detection port is input port,To detect the voltage quasi position of level detection port of outer machine controller, if this level detection port is high voltage level, foundationThe electric current that this external communication ports receives is followed order, adjusts the output voltage of rear class power circuit, until this output currentCatch up with this electric current and follow the current value of order.
3. redundant power electric power system according to claim 1 and 2, is characterized in that, the controller of each power supply unitLevel detection port connect an earth resistance.
4. redundant power electric power system according to claim 3, is characterized in that, the controller of each power supply unit enters oneStep has judged whether overvoltage or overcurrent condition according to current output voltage and output current, and has overvoltage or mistake in judgementCurrent status, controls its level detection port output LOW voltage level.
5. redundant power electric power system according to claim 4, is characterized in that, the controller of each power supply unit enters oneStep connects a temperature sensor, has judged whether over-temperature condition, and has had over-temperature condition in judgement, controls its level detection portOutput LOW voltage level.
6. redundant power electric power system according to claim 1 and 2, is characterized in that, the rear class electricity of each power supply unitThe power output end of source circuit is serially connected with an electronic switch, and this controller is with 0 bearing power when output, ends this electronic cuttingClose.
7. redundant power electric power system according to claim 4, is characterized in that, the rear level power supply electricity of each power supply unitThe power output end on road is serially connected with an electronic switch, and this controller is with 0 bearing power when output, ends this electronic switch.
8. redundant power electric power system according to claim 7, is characterized in that, this controller is selected the power supply way of outputInclude:
In the time that controller starts, making this normal mode is default control pattern, and sets this level detection port output LOW voltageLevel;
Judge that the setup control order that external communication ports transmits is master mode or standby mode;
If master mode, is made as output port by level detection port, and output LOW voltage level, and control model is changedFor master mode, and judge that current bearing power exceedes this heavy duty performance number, with average load power output power supply, and maintainsLevel detection port output LOW voltage level; If judge, current bearing power is lower than this underloading performance number, and controller is with full loadPower stage, and its level detection port is set as to output port, and output HIGH voltage level;
If standby mode, setting this level detection port is input port, and control model is made as to standby mode, judgementWhen the voltage quasi position of level detection port is high voltage level, with 0 bearing power output; Judge the voltage standard of level detection portWhen position is low-voltage level, with full load power or average load power stage.
9. redundant power electric power system according to claim 8, is characterized in that, this controller cannot supply at present in judgementElectricity, controlling this level detection port is output port, and output LOW voltage level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310140759.5A CN104113129B (en) | 2013-04-22 | 2013-04-22 | Redundancy power supply system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310140759.5A CN104113129B (en) | 2013-04-22 | 2013-04-22 | Redundancy power supply system |
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| CN104113129A CN104113129A (en) | 2014-10-22 |
| CN104113129B true CN104113129B (en) | 2016-05-18 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2960730A1 (en) * | 2014-06-25 | 2015-12-30 | Siemens Aktiengesellschaft | Method for configuring a switching power supply |
| CN104467153A (en) * | 2014-12-19 | 2015-03-25 | 北京赛德高科铁道电气科技有限责任公司 | DC600V train power supply cabinet double-circuit redundant power supply device |
| CN106356981B (en) * | 2015-07-14 | 2019-05-14 | 善元科技股份有限公司 | Spare power and its power-economizing method when working in cold redundancy mode |
| CN112311079B (en) * | 2019-07-26 | 2022-08-19 | 康舒科技股份有限公司 | Redundant power supply device and abnormal protection control method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7498694B2 (en) * | 2006-04-12 | 2009-03-03 | 02Micro International Ltd. | Power management system with multiple power sources |
| US8552586B2 (en) * | 2010-04-26 | 2013-10-08 | Oracle International Corporation | Standby power control in a multiple power supply environment |
| CN101917008B (en) * | 2010-07-29 | 2014-11-05 | 中兴通讯股份有限公司 | Method and device for improving specific proportion load efficiency of power source |
| CN102347633B (en) * | 2010-08-03 | 2013-12-25 | 联想(北京)有限公司 | Power supply module and power supply system |
| CN102104277B (en) * | 2011-03-08 | 2013-09-18 | 福建星网锐捷网络有限公司 | Redundant power supply control method, device and system |
| 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 |
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