CN101834467A - 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 PDF

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Publication number
CN101834467A
CN101834467A CN 201010158022 CN201010158022A CN101834467A CN 101834467 A CN101834467 A CN 101834467A CN 201010158022 CN201010158022 CN 201010158022 CN 201010158022 A CN201010158022 A CN 201010158022A CN 101834467 A CN101834467 A CN 101834467A
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ups
control
battery pack
battery
power supply
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CN 201010158022
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CN101834467B (en
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吴小伟
刘杰
吴吉良
夏斌
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Vertiv Tech Co Ltd
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Emerson Network Power Co Ltd
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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

A kind of intelligent shared battery pack UPS (Uninterrupted Power Supply) system and control method thereof
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, is not subjected to 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 to be solved in the present invention is that the battery that need dispose a greater number at 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 described battery pack, described control system also comprises the control device that is used to control the shared described battery pack of UPS main frame, and described control device obtains described battery pack parameter and identical and the corresponding running parameter of described battery pack parameter is set for each UPS main frame.
In intelligent shared battery pack UPS (Uninterrupted Power Supply) system of the present invention, described 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 described control device, makes the described 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 low pressure of interior all the UPS cell hosts of described control device control system alarm state in advance is synchronous triggering.
In intelligent shared battery pack UPS (Uninterrupted Power Supply) system of the present invention, UPS main frame in the described control device detection system, and when detecting wherein arbitrary UPS host-initiated battery self check in the control system all UPS main frames enter 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, described control method comprises to be obtained the battery pack parameter and identical and the corresponding running parameter of described 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, described 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, described control method comprises that also control opened the UPS main frame of charger, make the described 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, the low pressure that described control method also comprises all UPS cell hosts in control system alarm state in advance is synchronous triggering.
In the control method of intelligent shared battery pack UPS (Uninterrupted Power Supply) system of the present invention, described 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 enter the self check state synchronously.
Implement intelligent shared battery pack UPS (Uninterrupted Power Supply) system 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, make that the switching between each UPS host module is simple and reliable, need not manually 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; Adjust charging current limiter point and charged state as each UPS host module automatic dynamic 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 low pre-alarm state 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 by arbitrary UPS host module in the system, each UPS host module can enter the self check state synchronously in the system thereby make.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, 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 that battery pack is alarmed decision flow chart in advance in the preferred embodiment of the present invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.
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 battery pack and a plurality of UPS main frames that link to each other with this battery pack and the coupling assembling of other ups system necessity, 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 described battery pack parameter is set for each UPS main frame.The battery parameter difference that existing each UPS main frame may be provided with, thereby cause when between each ups system, switching UPS main frame and battery parameter incompatible, thus need 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, need not to adjust parameter when system's UPS host number changes.
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, as 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, as 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.Control device also in the control system low pressure of all UPS cell hosts in advance the alarm state be 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 enter 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, whether whether state such as the charger that is each this machine of module necessity open, all fill, state such as powered battery is broadcast on the bus in the mode of digital signal, analog signal or communication, through logical AND (or) after retaking of a year or grade, the logic processing of this machine of participation is described its detailed process below so that battery pack is controlled.
In the present invention, CB common battery group parameter configuration is as 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 groups back in parallel summation).
The battery charge current-limiting points---each module allows charging current limiter point (ratio) to be configured in actual battery in the system, as 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 as 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 as 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.
Pre-alarm state---UPS host module satisfies the low pre-alarm condition (containing time conditions and cell voltage condition) of cell voltage for true, and other is false, bus logic and operation.Need to prove that the module that only is in discharge condition participates in and should alarm in advance.
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 as 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 as 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 finish 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 detect battery and do not have under the battery float condition, its process is as follows: 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.When detect battery sometimes (state A) control device control this UPS host module and enter floating charge state.
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 enters 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 enter the self check state synchronously.After finishing or withdraw from unusually, the battery self check enters floating charge state.
Temperature-compensating---control device is unified compensation by the parallel operation bus or the total temperature value or the bucking voltage value of transmitting earlier of background monitoring of system.
The low pre-alarm of cell voltage---all UPS cell host low pressure are alarmed the state synchronized triggering in advance 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 pre-alarm that time conditions causes, then wait for bus in advance the alarm state be that very the advance notice action is triggered in the back; If the pre-alarm that voltage conditions causes then triggers the alarm action immediately; The pre-alarm that discharge prevention causes then triggers the alarm action immediately.
See also Fig. 3, for battery pack in the invention preferred embodiment is alarmed decision flow chart in advance.As shown in Figure 3, at first in step 310, the UPS main frame is in discharge condition; In step 320, judge whether cell voltage is lower than current pre-alarm electrical voltage point subsequently, be then to change step 340, otherwise change step 330; In step 330, further judge, if system synthesis in advance the alarm state for true or this machine discharge prevention time to change step 340, otherwise commentaries on classics step 350; In step 340, carry out pre-alarm action, and change step 350; In step 350, finish this pre-alarm and judge.
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 as 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 described 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 all UPS cell host low pressure are alarmed the state synchronized triggering in advance 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 enter 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, the system reliability height.
The present invention is described 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 technology of the present invention, 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 (10)

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 described battery pack, described ups system also comprises the control device that is used to control the shared described battery pack of UPS main frame, and described control device obtains described battery pack parameter and identical and the corresponding running parameter of described battery pack parameter is set for each UPS main frame.
2. intelligent shared battery pack UPS (Uninterrupted Power Supply) system according to claim 1, it is characterized in that, described 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.
3. intelligent shared battery pack UPS (Uninterrupted Power Supply) system according to claim 1, it is characterized in that, the UPS main frame of charger has been opened in the control of described control device, makes the described 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.
4. intelligent shared battery pack UPS (Uninterrupted Power Supply) system according to claim 1 is characterized in that, the low pressure of interior all the UPS cell hosts of described control device control system alarm state in advance is synchronous triggering.
5. intelligent shared battery pack UPS (Uninterrupted Power Supply) system according to claim 1, it is characterized in that, UPS main frame in the described control device detection system, and when detecting wherein arbitrary UPS host-initiated battery self check in the control system all UPS main frames enter the self check state synchronously.
6. 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, described control method comprises to be obtained the battery pack parameter and identical and the corresponding running parameter of described battery pack parameter is set for each UPS main frame.
7. the control method of intelligent shared battery pack UPS (Uninterrupted Power Supply) system according to claim 6, it is characterized in that, described 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.
8. the control method of intelligent shared battery pack UPS (Uninterrupted Power Supply) system according to claim 6, it is characterized in that, described control method comprises that also control opened the UPS main frame of charger, make the described 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.
9. the control method of intelligent shared battery pack UPS (Uninterrupted Power Supply) system according to claim 6 is characterized in that, the low pressure that described control method also comprises all UPS cell hosts in control system alarm state in advance is synchronous triggering.
10. the control method of intelligent shared battery pack UPS (Uninterrupted Power Supply) system according to claim 6, it is characterized in that, described 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 enter the self check state synchronously.
CN2010101580222A 2010-04-27 2010-04-27 Intelligent shared battery pack UPS (Uninterrupted Power Supply) system and control method thereof Active CN101834467B (en)

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Cited By (5)

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CN102832699A (en) * 2012-09-04 2012-12-19 朱龙飞 Power supply array
US20130099574A1 (en) * 2011-10-24 2013-04-25 Richard Scott Bourgeois System and method for multiple power supplies
CN104733792A (en) * 2013-12-23 2015-06-24 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
CN108631433A (en) * 2018-05-11 2018-10-09 香江科技股份有限公司 Energy dispatching management information system and method between a kind of data center module cabinet
US10230261B2 (en) 2015-11-18 2019-03-12 Eaton Intelligent Power Limited Power control circuits and related uninterruptible power supply systems

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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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CN1476140A (en) * 2002-08-15 2004-02-18 冉茂鑫 Bi non interrupted switch power supply rebudance output method and its system
US20070007825A1 (en) * 2005-07-06 2007-01-11 Liebert Corporation Maximized battery run-time in a parallel ups 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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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130099574A1 (en) * 2011-10-24 2013-04-25 Richard Scott Bourgeois System and method for multiple power supplies
WO2013062815A1 (en) * 2011-10-24 2013-05-02 General Electric Company System and method for multiple power supplies
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CN104733792A (en) * 2013-12-23 2015-06-24 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
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
CN108631433A (en) * 2018-05-11 2018-10-09 香江科技股份有限公司 Energy dispatching management information system and method between a kind of data center module cabinet

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