CN101834467B - Intelligent shared battery pack UPS (Uninterrupted Power Supply) system and control method thereof - Google Patents
Intelligent shared battery pack UPS (Uninterrupted Power Supply) system and control method thereof Download PDFInfo
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Abstract
The invention relates to an intelligent shared battery pack UPS (Uninterrupted Power Supply) system comprising a battery pack as well as a plurality of UPS host machines connected with the battery pack and necessary connecting assemblies thereof. The system also comprises a control device for controlling the UPS host machines to share the battery pack, the control device can be independent from or built in or integrated to the USP host machines and is used for acquiring the parameter of the battery pack and setting the same parameter corresponding to the parameter of the battery pack for each UPS main machine. The system and the method provided in the invention effectively control the plurality of UPS host machines to simultaneously share the same set of batteries and ensure the coordination of battery parameter configuration, charging management, discharging management and alarm logic to furthest exert the charging capacity of the UPS system and the storage capacity of energy storage batteries.
Description
Technical field
The present invention relates to the UPS technology, more particularly, relate to a kind of intelligent shared battery pack UPS (Uninterrupted Power Supply) system and control method thereof.
Background technology
In order to improve the reliability of system, present machine room adopts UPS (Uninterruptible Power Supply, the uninterrupted power supply) allocation plan of N+X parallel redundancy or double-bus more.
At present, the UPS of machine room (Uninterruptible Power Supply, uninterrupted power supply) system adopts the allocation plan of N+X parallel redundancy or double-bus to improve the reliability of system more.Yet according to the cell arrangement method of routine, every UPS main frame is worn battery pack separately, if the UPS main frame for some reason can not inversion, the battery pack that it is worn has also just and then been cancelled, although battery does not have fault.So UPS master redundancy, battery also will be followed redundancy, only in this way just can make the system backup time unaffected, reach the effect of real redundancy.So along with increasing of UPS host number, the quantity of battery is also often followed proportional increase, thereby the cost of each side such as the money that spends in battery, space, load-bearing, maintenance is strengthened, sometimes or even several times of UPS main frame.Therefore; Need under the situation of the least possible number of batteries of configuration, provide a kind of control method to come guarantee system reliability; Do not received or few influenced the system backup time, perhaps under the situation of UPS master redundancy and do not require that battery pack is also along with redundant configuration.
Summary of the invention
The technical problem that the present invention will solve is that the battery that need dispose a greater number to existing ups system causes the too high defective of cost, and a kind of intelligent shared battery pack UPS (Uninterrupted Power Supply) system and control method thereof are provided.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of intelligent shared battery pack UPS (Uninterrupted Power Supply) system and control method thereof; Control a plurality of UPS main frames shared same Battery pack simultaneously effectively; And guarantee the harmonious of battery parameter configuration, Charge Management, discharge management and alarm logic, bring into play the power backup ability of the charging ability and the energy-storage battery of ups system to greatest extent.
The invention provides a kind of intelligent shared battery pack UPS (Uninterrupted Power Supply) system; The a plurality of UPS main frames that comprise battery pack and link to each other with said battery pack; Said control system also comprises the control device that is used to control the shared said battery pack of UPS main frame, and said control device obtains said battery pack parameter and identical and the corresponding running parameter of said battery pack parameter is set for each UPS main frame.
In intelligent shared battery pack UPS (Uninterrupted Power Supply) system of the present invention; Said control device is provided with the total charging current limiter value of ratio calculation according to battery capacity and current limliting, and divides equally each UPS cell host charging current limiter point of dynamic adjustment according to the UPS host number of opening charger in the system.
In intelligent shared battery pack UPS (Uninterrupted Power Supply) system of the present invention, the UPS main frame of charger has been opened in the control of said control device, makes the said UPS main frame of having opened charger charge closing device periodically in short-term when battery is full of, and has or not detection to carry out battery.
In intelligent shared battery pack UPS (Uninterrupted Power Supply) system of the present invention, the alert state of the low pressure of all UPS cell hosts advance notice is a synchronous triggering in the said control device control system.
In intelligent shared battery pack UPS (Uninterrupted Power Supply) system of the present invention, UPS main frame in the said control device detection system, and when detecting wherein arbitrary UPS host-initiated battery self check in the control system all UPS main frames get into the self check state synchronously.
The present invention also provides a kind of control method of intelligent shared battery pack UPS (Uninterrupted Power Supply) system; Be used to control a plurality of UPS main frame CB common battery groups, said control method comprises to be obtained the battery pack parameter and identical and the corresponding running parameter of said battery pack parameter is set for each UPS main frame.
In the control method of intelligent shared battery pack UPS (Uninterrupted Power Supply) system of the present invention; Said control method also comprises according to battery capacity and current limliting the total charging current limiter value of ratio calculation is set, and divides equally each UPS cell host charging current limiter point of dynamic adjustment according to the UPS host number of opening charger in the system.
In the control method of intelligent shared battery pack UPS (Uninterrupted Power Supply) system of the present invention; Said control method comprises that also control opened the UPS main frame of charger; Make the said UPS main frame of having opened charger charge closing device periodically in short-term when battery is full of, have or not detection to carry out battery.
In the control method of intelligent shared battery pack UPS (Uninterrupted Power Supply) system of the present invention, said control method comprises that also the alert state of low pressure advance notice of all UPS cell hosts in the control system is a synchronous triggering.
In the control method of intelligent shared battery pack UPS (Uninterrupted Power Supply) system of the present invention; Said control method also comprises UPS main frame in the detection system, and when detecting wherein arbitrary UPS host-initiated battery self check in the control system all UPS main frames get into the self check state synchronously.
The intelligent shared battery pack UPS (Uninterrupted Power Supply) system of embodiment of the present invention and control method thereof; Have following beneficial effect: the present invention controls a plurality of UPS main frames shared same Battery pack simultaneously effectively; Reduced system cost; And each UPS main frame is carried out parameter configuration automatically according to the actual battery group, and make that the switching between each UPS host module is simple and reliable, need not artificial parameter to be adjusted.
The present invention also takes various operations to guarantee the harmonious of battery parameter configuration, Charge Management, discharge management and alarm logic in addition, brings into play the power backup ability of the charging ability and the energy-storage battery of ups system to greatest extent; Like each UPS host module automatic dynamic adjustment charging current limiter point and charged state in the system, the system of assurance is in the maximum charge ability; Under the state that all UPS host modules are all opened, carry out the detection that battery has or not; The alert state of the low advance notice of cell voltage has been carried out system's sum total, and protected with battery voltage value, the power backup ability of battery maximum and the safety shutdown time of proof load are kept strokes, guarantee in each module alarm in the assurance system; Start the battery self check through arbitrary UPS host module in the system, each UPS host module can get into the self check state synchronously in the system thereby make.
Description of drawings
To combine accompanying drawing and embodiment that the present invention is described further below, in the accompanying drawing:
Fig. 1 is the structural representation of intelligent shared battery pack UPS (Uninterrupted Power Supply) system in the preferred embodiment of the present invention;
Fig. 2 is battery pack logic state figure in the preferred embodiment of the present invention;
Fig. 3 is the alert decision flow chart of battery pack advance notice in the preferred embodiment of the present invention.
Embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.
See also Fig. 1, be the structural representation of intelligent shared battery pack UPS (Uninterrupted Power Supply) system in the preferred embodiment of the present invention.As shown in Figure 1; Intelligent shared battery pack UPS (Uninterrupted Power Supply) system provided by the invention; Comprise the coupling assembling that battery pack and a plurality of UPS main frames that link to each other with this battery pack and other ups system are necessary, this control system also comprises control device, is used to control UPS main frame CB common battery group.This control device can be independent or built-in or be integrated in the UPS main frame.Control device adopts no master mode to the management of UPS main frame CB common battery group; It is each UPS host module status equity in the system; The parameter configuration of in the present invention, mentioning and to operation associated between each UPS main frame, its in the configuration of each parameter and control and the prior art to the configuration that exclusively enjoys the battery pack scheme with control identical.
In the present invention, control device obtains the battery pack parameter and identical and the corresponding running parameter of said battery pack parameter is set for each UPS main frame.Battery parameter that existing each UPS main frame possibly be provided with is different, thereby causes when between each ups system, switching UPS main frame and battery parameter incompatible, thereby needs Reparametrization.And the present invention can carry out parameter configuration to each UPS main frame automatically according to the actual battery group, makes that the switching between each UPS host module is simple and reliable, when system's UPS host number changes, need not to adjust parameter.
Control device also is provided with the total charging current limiter value of ratio calculation according to battery capacity and current limliting, and divides equally each UPS cell host charging current limiter point of dynamic adjustment according to the UPS host number of opening charger in the system.Each UPS host module allows charging current limiter point (ratio) to be configured in actual battery in the system, like 0.1C, need not special processing.When software processes; Battery capacity and current limliting are provided with the total charging current limiter value of ratio calculation, divide equally according to the quantity of opening charger in the system, draw this module charging current limit value; Like battery capacity 100Ah; Be set to 0.1C, current unlatching charger is 4, and then this modular battery charging current limiter point is 2.5A.
In addition, control device of the present invention is also controlled the UPS main frame of having opened charger, makes its charge closing device periodically in short-term when battery is full of, and has or not detection to carry out battery.The control device also alert state of low pressure advance notice of interior all the UPS cell hosts of control system is a synchronous triggering.Control device also detects UPS main frame in the system, and when detecting wherein arbitrary UPS host-initiated battery self check in the control system all UPS main frames get into the self check state synchronously.
The present invention is except that the condition of basic management scheme; Also need the taking into account system integrated logic; Be that whether whether each this machine of module necessary state such as charger are opened, all filled, state such as powered battery is broadcast on the bus with the mode of digital signal, analog signal or communication; Through logical AND (or) after retaking of a year or grade, the logic processing of participating in this machine is described in the face of its detailed process down so that battery pack is controlled.
In the present invention, CB common battery group parameter configuration is described below.
Battery capacity---each UPS host module is pressed the single pool-size configuration of actual battery group in the system.If this system only supports single Battery pack to insert or do not support the configuration of battery pack number, then will be configured by actual battery total amount (single group or many group parallel connections back summation).
The battery charge current-limiting points---each module allows charging current limiter point (ratio) to be configured in actual battery in the system, like 0.1C.During software processes, battery capacity and current limliting are provided with the total charging current limiter value of ratio calculation, divide equally according to the quantity of opening charger in the system; Draw this module charging current limit value,, be set to 0.1C like battery capacity 100Ah; Current unlatching charger is 4, and then this modular battery charging current limiter point is 2.5A.
Battery pack pattern setting---independent and two kinds of patterns of CB common battery group for compatibility need provide the battery pack pattern that passage and relative set instrument are set, and option is set is: be shared, not shared; It is shared that perhaps system is defaulted as battery pack all the time.
The battery pack number---press the configuration of actual battery group group number.
Other---undeclared parameter is configured according to original battery pack scheme that exclusively enjoys.
In the present invention, need interactive information to be described below between the UPS host module.
Charger state---UPS host module charger is opened to true, closes to be vacation; The UPS host module interior charger state of statistical system voluntarily is the antilog amount.
Charged state---UPS host module all fills for very, and other state is false, bus logic or operation.Only it is noted that in this module and satisfy charging current or battery capacity or regularly all fill or force an equalizing charge etc. can set when all filling the logic state condition, other state this sign that all resets.
Power supply state---UPS host module powered battery is true, and other state is false, bus logic or operation.UPS host module self check is simultaneously handled by power supply.
The alert state of advance notice---UPS host module satisfies the low alert condition of advance notice of cell voltage (containing time conditions and cell voltage condition) for true, and other is false, bus logic and operation.Need to prove that the module that only is in discharge condition is participated in this advance notice police.
UPS host module presence---the UPS host module is online to be true, and other is false; Be used to add up online number of modules.
It is true that if battery self check---UPS host module starts self check, and other is false, bus logic or operation; If the bus self check is masked as very.And this module is not in the self check state, and then this module starts self check.
In the present invention, CB common battery group management logic is described below.See also Fig. 2, be battery pack logic state figure in the preferred embodiment of the present invention.As shown in Figure 2, wherein the testing result of each letter representative is described below: the A representative detects battery to be had; B represents charging current greater than set point; The comprehensive battery status of C representative system is for all filling; The D representative of consumer starts force an equalizing charge; E represents charging current less than set point; F representative is all filled and is comprised the time and arrive; The G representative of consumer stops force an equalizing charge; H represents battery discharge; I represents the self check conditions being possessed, and this UPS main frame manually/to start self check or system synthesis self check state periodically automatically be in the self check; On behalf of self check, L accomplish or withdraw from unusually; M represents battery charge.
Battery has or not detection---and battery inserts testing conditions and is higher than threshold value for the battery voltage detection value, and confirms certain hour.And only under the battery float condition, detect battery and do not have, its process is following: all online UPS host modules are floating charge in the system, and then only the module of ID minimum is held open state, all automatic charge closing device of other module; Open the UPS host module of charger can be when battery be full of charge closing device periodically in short-term, detect battery and do not have.Get into floating charge state when detecting this UPS host module of battery (state A) control device control sometimes.
If all floating charge conversions---detect bus and all fill state for true, the passive mode of operation of all filling of UPS host module then, under the Passive Mode, this module is not broadcasted and is all filled state to bus; Only the UPS host module is satisfied all fills condition (electric current is greater than threshold value), just allows this module to send and all fills state on bus, and other state need be removed this state.When under floating charge state, when detecting charging current and starting force an equalizing charge (state D) for all filling (state C) or user, be transformed into the state that all fills greater than set point (state B), system synthesis battery status.When all filling under the state, detect charging current less than set point (state E), all fill and comprise the time and stop force an equalizing charge (state G) to (state F) or user, then be transformed under the floating charge state.
Discharge---under various states, if detect battery discharge (state H), then the UPS host module is in discharge condition.Do not discharge if detect the UPS host module, but the bus discharge condition is true, then this UPS host module charge closing device.Under discharge condition, battery charge (state M) then gets into floating charge state if desired.
The battery self check---when under floating charge state, detect the self check conditions being possessed, and start self check when manually or automatically starting self check (state I).Control device detects UPS main frame in the system, and when detecting wherein arbitrary UPS host-initiated battery self check in the control system all UPS main frames get into the self check state synchronously.Accomplish or withdraw from unusually the back in the battery self check and get into floating charge state.
Temperature-compensating---control device is unified compensation through the parallel operation bus or the total temperature value or the bucking voltage value of transmitting earlier of background monitoring of system.
The low advance notice of cell voltage is alert---and the alert state synchronized of all UPS cell host low pressure advance notices triggers in the control device control system.Thereby the power backup ability of battery maximum and the safety shutdown time of proof load are kept strokes, guarantee in each module alarm in the assurance system.If the advance notice that time conditions causes is alert, wait for that then the alert state of bus advance notice is very back triggering advance notice action; If the advance notice that voltage conditions causes is alert, then trigger the alarm action immediately; The advance notice that discharge prevention causes is alert, then triggers the alarm action immediately.
See also Fig. 3, be the alert decision flow chart of battery pack advance notice in the invention preferred embodiment.As shown in Figure 3, at first in step 310, the UPS main frame is in discharge condition; In step 320, judge that whether cell voltage is lower than the alert electrical voltage point of current advance notice, is then to change step 340, otherwise changes step 330 subsequently; In step 330, further judge, if the alert state of system synthesis advance notice for true or this machine discharge prevention time to change step 340, otherwise commentaries on classics step 350; In step 340, carry out the alert action of advance notice, and change step 350; In step 350, finish the alert judgement of this advance notice.
EOD---when cell voltage is lower than set point, close inverter and battery converter, this set point can change in certain limit for fixed value or with discharging current (power) floats.
System failure protection---each UPS host module of the system failure (high excessively like battery earth fault, ambient temperature) protection processing logic independently carries out.
The also corresponding control method that above-mentioned intelligent shared battery pack UPS (Uninterrupted Power Supply) system is provided of the present invention.The operation of this control method is carried out by above-mentioned control device.This control method comprises to be obtained the battery pack parameter and identical and the corresponding running parameter of said battery pack parameter is set for each UPS main frame.This control method also comprises according to battery capacity and current limliting the total charging current limiter value of ratio calculation is set, and divides equally each UPS cell host charging current limiter point of dynamic adjustment according to the UPS host number of opening charger in the system.This control method also comprise UPS main frame that control opens charger when battery is full of periodically in short-term the charge closing device be used to carry out battery and have or not detection.This control method comprises that also the alert state synchronized of all UPS cell host low pressure advance notices triggers in the control system.In addition, this control method also comprises UPS main frame in the detection system, and when detecting wherein arbitrary UPS host-initiated battery self check in the control system all UPS main frames get into the self check state synchronously.
In sum; The present invention is when the shared same Battery pack of a plurality of intelligent UPS host modules; Need provide a kind of simple, effective, reliable control method to guarantee the harmonious of battery parameter configuration, Charge Management, discharge management and alarm logic, bring into play the power backup ability of the charging ability and the energy-storage battery of ups system to greatest extent.And intelligent shared battery pack UPS (Uninterrupted Power Supply) system provided by the invention is applied in Adapt 20kVA project, and it is stable, and system reliability is high.
The present invention describes according to specific embodiment, but it will be understood by those skilled in the art that when not breaking away from the scope of the invention, can carry out various variations and be equal to replacement.In addition, for adapting to the specific occasion or the material of the present invention's technology, can carry out many modifications and not break away from its protection range the present invention.Therefore, the present invention is not limited to specific embodiment disclosed herein, and comprises that all drop into the embodiment of claim protection range.
Claims (6)
1. intelligent shared battery pack UPS (Uninterrupted Power Supply) system; It is characterized in that; The a plurality of UPS main frames that comprise battery pack and link to each other with said battery pack; Said ups system also comprises the control device that is used to control the shared said battery pack of UPS main frame, and said control device obtains said battery pack parameter and identical and the corresponding running parameter of said battery pack parameter is set for each UPS main frame;
And said control device is provided with the total charging current limiter value of ratio calculation according to battery capacity and current limliting, and divides equally each UPS cell host charging current limiter point of dynamic adjustment according to the UPS host number of opening charger in the system;
And the UPS main frame of charger has been opened in the control of said control device, makes the said UPS main frame of having opened charger charge closing device periodically in short-term when battery is full of, and has or not detection to carry out battery;
There is this UPS host module of timed unit control to get into floating charge state when detecting battery; When under floating charge state, detect charging current greater than set point, system synthesis battery status for all filling or user when starting force an equalizing charge, be transformed into the state that all fills; When all filling under the state, detect charging current less than set point, all fill comprise the time to or the user stop force an equalizing charge, then be transformed under the floating charge state; Under various states, if detect battery discharge, then the UPS host module is in discharge condition.
2. intelligent shared battery pack UPS (Uninterrupted Power Supply) system according to claim 1 is characterized in that, the alert state of the low pressure of all UPS cell hosts advance notice is a synchronous triggering in the said control device control system.
3. intelligent shared battery pack UPS (Uninterrupted Power Supply) system according to claim 1; It is characterized in that; UPS main frame in the said control device detection system, and when detecting wherein arbitrary UPS host-initiated battery self check in the control system all UPS main frames get into the self check state synchronously.
4. the control method of an intelligent shared battery pack UPS (Uninterrupted Power Supply) system; It is characterized in that; Be used to control a plurality of UPS main frame CB common battery groups, said control method comprises to be obtained the battery pack parameter and identical and the corresponding running parameter of said battery pack parameter is set for each UPS main frame;
And said control method also comprises according to battery capacity and current limliting the total charging current limiter value of ratio calculation is set, and divides equally each UPS cell host charging current limiter point of dynamic adjustment according to the UPS host number of opening charger in the system;
And said control method comprises that also control opened the UPS main frame of charger, makes the said UPS main frame of having opened charger charge closing device periodically in short-term when battery is full of, and has or not detection to carry out battery;
And said control method also comprises: have this UPS host module of timed unit control to get into floating charge state when detecting battery; When under floating charge state, detect charging current greater than set point, system synthesis battery status for all filling or user when starting force an equalizing charge, be transformed into the state that all fills; When all filling under the state, detect charging current less than set point, all fill comprise the time to or the user stop force an equalizing charge, then be transformed under the floating charge state; Under various states, if detect battery discharge, then the UPS host module is in discharge condition.
5. the control method of intelligent shared battery pack UPS (Uninterrupted Power Supply) system according to claim 4 is characterized in that, said control method comprises that also the alert state of low pressure advance notice of all UPS cell hosts in the control system is a synchronous triggering.
6. the control method of intelligent shared battery pack UPS (Uninterrupted Power Supply) system according to claim 4; It is characterized in that; Said control method also comprises UPS main frame in the detection system, and when detecting wherein arbitrary UPS host-initiated battery self check in the control system all UPS main frames get into the self check state synchronously.
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| US20130099574A1 (en) * | 2011-10-24 | 2013-04-25 | Richard Scott Bourgeois | System and method for multiple power supplies |
| CN102832699B (en) * | 2012-09-04 | 2016-01-20 | 胡瑞林 | A kind of power array |
| CN104733792B (en) * | 2013-12-23 | 2017-02-15 | 艾默生网络能源有限公司 | Battery discharging current equalizing method and device of three-phase four-wire UPS system |
| US10230261B2 (en) | 2015-11-18 | 2019-03-12 | Eaton Intelligent Power Limited | Power control circuits and related uninterruptible power supply systems |
| CN108631433B (en) * | 2018-05-11 | 2020-07-24 | 香江科技股份有限公司 | Inter-cabinet energy scheduling management system and method for data machine room |
| CN109245283B (en) * | 2018-10-16 | 2023-12-29 | 深圳市科陆电子科技股份有限公司 | Standby battery monitoring system and uninterrupted power supply intelligent switching and monitoring system |
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| CN1476140A (en) * | 2002-08-15 | 2004-02-18 | 冉茂鑫 | Bi non interrupted switch power supply rebudance output method and its system |
| CN1972072A (en) * | 2005-11-24 | 2007-05-30 | 台达电子工业股份有限公司 | Parallel uninterrupted power supply system |
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| US7668624B2 (en) * | 2005-07-06 | 2010-02-23 | Liebert Corporation | Maximized battery run-time in a parallel UPS system |
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| CN1476140A (en) * | 2002-08-15 | 2004-02-18 | 冉茂鑫 | Bi non interrupted switch power supply rebudance output method and its system |
| CN1972072A (en) * | 2005-11-24 | 2007-05-30 | 台达电子工业股份有限公司 | Parallel uninterrupted power supply system |
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