CN114498862B - Monitoring system for monitoring storage battery of data machine room - Google Patents
Monitoring system for monitoring storage battery of data machine room Download PDFInfo
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- H—ELECTRICITY
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- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
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Abstract
The invention relates to the technical field of storage battery monitoring, in particular to a monitoring system for monitoring a storage battery of a data machine room, which comprises a data acquisition module for acquiring density change information, charging voltage data and charging current data of electrolyte in real time, a data storage module for storing judgment results of a central control module and the central control module, wherein the central control module is respectively connected with the data acquisition module and the data storage module and used for correcting the charging voltage or the charging current according to the acquisition results of the data acquisition module so as to optimize a charging process, and the loss of a continuous battery is reduced to the minimum while the charging process of the storage battery is finished in the shortest time.
Description
Technical Field
The invention relates to the technical field of storage battery monitoring, in particular to a monitoring system for monitoring a storage battery of a data machine room.
Background
UPS devices are a very important and focused problem as backup power sources for communications. The expression "the battery is not worn out but is charged out" has its correctness. The charging performance of the storage battery plays a significant role in the service life and the service performance of the storage battery, so the charging mode must be considered.
Chinese patent publication No.: CN110297188B discloses a storage battery monitoring system, which only monitors the voltage, resistance and temperature of the storage battery simply in the storage battery monitoring process. To prolong the service life of lead-acid batteries, it is important to charge them reasonably. In the charging process of the storage battery, the water loss and the thermal runaway of the storage battery can be caused due to overhigh charging voltage or charging current, the service life of the storage battery is shortened, even the storage battery is out of order, the charging voltage or the charging current is overlow, the charging time is overlong, and the emergency use risk of a data machine room is increased. Therefore, optimizing the charging process of the storage battery is urgently needed.
Disclosure of Invention
Therefore, the invention provides a monitoring system for monitoring a storage battery of a data computer room, which is used for overcoming the problem of insufficient optimization of the charging process of the storage battery in the prior art.
In order to achieve the above object, the present invention provides a monitoring system for monitoring a storage battery in a data room, comprising:
the data acquisition module is used for acquiring density change information of the electrolyte, charging voltage data and charging current data in real time when the storage batteries of the data machine room are charged uniformly;
the central control module is connected with the data acquisition module and used for correcting the charging voltage or the charging current according to the acquisition result of the data acquisition module, extracting the density change information of the electrolyte acquired by the data acquisition module when the charging time reaches a preset unit time and forming an actual change curve of the charging voltage or the charging current according to the acquisition information, and correcting the charging voltage or the charging current in the next period according to the deviation when the central control module judges that the actual change curve in the current period has the deviation from the preset change curve in the current period;
and the data storage module is connected with the central control module and used for storing the judgment result of the central control module and providing data information for optimizing the charging process of the storage battery.
Further, when the storage battery is in a constant-current charging stage and the charging time reaches a preset unit time, if the central control module determines that the current-period actual variation curve f1 of the charging voltage deviates from the current-period preset variation curve f0, the central control module extracts a preset charging voltage coordinate f (t, U) at the current time point, determines a first intersection point k1 of the current-period actual variation curve f1 and the current-period preset variation curve f0, determines a first voltage curve slope a1 according to the first intersection point k1 and the preset charging voltage coordinate f (t, U), and sets at least one intersection point between the actual variation curve and the preset variation curve, wherein the abscissa t is time, and the ordinate U is the charging voltage.
Further, when the central control module corrects the charging voltage of the next period, the central control module obtains the actual charging voltage U1 at the current time point according to the slope a1 of the first voltage curve at the first intersection point k1, and sets a1=Δu/Δ t, where Δ U = | U0-U |, and Δ t = | t0-t |, where t0 is the abscissa of the first intersection point k1, and U0 is the ordinate of the first intersection point k 1.
Further, the central control module obtains an actual charging voltage U1 at the current time point according to a preset charging voltage U at the current time point and the first voltage curve slope a1, sets U1= U × a1, extracts an electrolyte density ρ 1 at the current time point and an electrolyte density ρ corresponding to the preset charging voltage U at the current time point, calculates a difference Δ ρ between ρ 1 and ρ, and corrects the charging voltage at the next time period according to Δ ρ.
Further, the central control module is provided with a first preset charging voltage electrolyte density deviation delta rho 1, a second preset charging voltage electrolyte density deviation delta rho 2, a first preset charging voltage correction coefficient e1, a second preset charging voltage correction coefficient e2 and a third preset charging voltage correction coefficient e3, wherein the delta rho 1 is smaller than the delta rho 2, 0.1 is larger than e1, e2 is larger than e3 and smaller than 0.3, when the central control module corrects the next charging voltage according to the delta rho, the delta rho is set to be = | rho 1-rho |, and the central control module selects a corresponding correction coefficient according to the delta rho to correct the next charging voltage to a corresponding value;
if the delta rho is not more than the delta rho 1, the central control module selects e1 to correct the charging voltage to a corresponding value;
if the delta rho 1 is less than or equal to the delta rho 2, the central control module corrects the charging voltage to a corresponding value by using e 2;
and if the delta rho 2 is less than the delta rho, the central control module selects e3 to correct the charging voltage to a corresponding value.
Further, when the central control module selects ei to correct the charging voltage to a corresponding value, i =1, 2, 3 is set, and the corrected charging voltage is marked as U1 ', if the central control module determines that the preset charging voltage U at the current time point is greater than the actual charging voltage U1 at the current time point, U1' = U1 × (1 + ei) is set; if the central control module determines that the preset charging voltage U at the current time point is less than the actual charging voltage U1 at the current time point, U1' = U1 × (1-ei) is set.
Further, the central control module converts the charging mode of the storage battery into constant-voltage charging when judging that the voltage of the storage battery reaches a preset value U0; when the constant voltage charging time of the central control module reaches the preset unit time, if the central control module determines that the current time interval actual variation curve g1 of the charging current has a deviation from the current time interval preset variation curve g0, the central control module corrects the charging current of the next time interval according to the deviation.
Further, the central control module extracts a preset charging current coordinate g (t, a) at the current time point, determines a first intersection point Q1 (t 0, a 0) of the current-period actual change curve g1 and the current-period preset change curve g0, determines a first current curve slope b1 according to the first intersection point Q1 (t 0, a 0) and the preset charging current coordinate g (t, a), sets at least one intersection point between the actual change curve and the preset change curve, where the abscissa t is time and the ordinate a is charging current, and simultaneously obtains the actual charging current a1 at the current time point according to the first current curve slope b 84 and sets b1=Δa/, where a = a0-a |, Δ t = | t0-t |, sets a1= a × b1, where a is the preset charging current at the current time point, and the current density P of the current-period extracted by the central control module at the current time point corresponds to the current charging current time point P38 at the current time point Calculating the difference DeltaP between P1 and P, and correcting the charging current in the next period according to the DeltaP.
Furthermore, the central control module is provided with a first preset charging current electrolyte density deviation delta P1, a second preset charging current electrolyte density deviation delta P2, a first preset charging current correction coefficient w1, a second preset charging current correction coefficient w2 and a third preset charging current correction coefficient w3, wherein delta P1 is less than delta P2, 0.03 is less than w1 is less than w2 is less than w3 is less than 0.05, when the central control module corrects the charging current of the next time period according to delta P, delta P = | P1-P | is set, and the central control module selects a corresponding correction coefficient according to delta P to correct the charging current of the next time period to a corresponding value;
if the delta P is less than or equal to the delta P1, the central control module selects w1 to correct the charging current to a corresponding value;
if the value of delta P is more than delta P1 and less than or equal to delta P2, the central control module corrects the charging current to a corresponding value by using w 2;
if delta P2 is less than delta P, the central control module selects w3 to correct the charging current to a corresponding value.
Further, when the central control module selects wj to correct the charging current to a corresponding value, j =1, 2, 3 is set, and if the central control module determines that the preset charging current a at the current time point is greater than the actual charging current a1 at the current time point, a 1' = a1 × (1 + wj) is set; if the central control module determines that the preset charging current a at the current time point is less than the actual charging current a1 at the current time point, a 1' = a1 × (1-wj) is set.
Compared with the prior art, the invention has the advantages that the charging process of the storage battery is completed in the shortest time by correcting the charging voltage and the charging current in the charging process of the storage battery, and meanwhile, the loss of the continuous battery is reduced to the minimum, so that the charging process is optimized, and the charging efficiency is improved.
Further, in a stage of adopting a constant current charging mode for the storage battery, when the charging time reaches a preset unit time, if the central control module determines that the current time period actual variation curve of the charging voltage has a deviation from the current time period preset variation curve, the central control module corrects the charging voltage of the next time period according to the deviation, so that the charging process is further optimized, and the charging efficiency is improved.
Further, in a stage of adopting a constant-voltage charging mode for the storage battery, when the charging time reaches a preset unit time, if the central control module determines that a current time period actual variation curve of the charging current has a deviation from a current time period preset variation curve, the central control module corrects the charging current of a next time period according to the deviation, so that the charging process is further optimized, and the charging efficiency is improved.
Furthermore, the data acquisition module acquires electrolyte density change information in real time, the central control module calculates a difference value between the actual electrolyte density at the current time point and a preset electrolyte density corresponding to the current time point according to the acquisition result, and corrects the charging voltage or the charging current at the next time period according to the difference value, so that the charging process is further optimized, and the charging efficiency is improved.
Furthermore, the central control module selects a corresponding calculation formula according to the magnitude relation between the current time point preset value and the current time point actual value of the charging voltage or the charging current, corrects the charging voltage or the charging current to the corresponding value, further optimizes the charging process and improves the charging efficiency.
Drawings
FIG. 1 is a block diagram of a monitoring system for monitoring storage batteries in a data room according to the present invention;
FIG. 2 is a schematic diagram illustrating a charging voltage variation curve in the constant current charging stage according to an embodiment;
FIG. 3 is a schematic diagram illustrating a charging current variation curve in the constant voltage charging stage according to an embodiment.
Detailed Description
In order that the objects and advantages of the invention will be more clearly understood, the invention is further described below with reference to examples; it should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and do not limit the scope of the present invention.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Fig. 1 is a block diagram of a monitoring system for monitoring a storage battery in a data room according to the present invention, which includes:
and the data acquisition module is used for acquiring electrolyte density change information, charging voltage data and charging current data in real time when the storage batteries of the data machine room are all charged.
The central control module is connected with the data acquisition module and used for correcting the charging voltage or the charging current according to the acquisition result of the data acquisition module, extracting the density change information of the electrolyte acquired by the data acquisition module when the charging time reaches a preset unit time and forming an actual change curve of the charging voltage or the charging current according to the acquisition information, and correcting the charging voltage or the charging current in the next time period according to the deviation when the central control module judges that the actual change curve in the current time period and the preset change curve in the current time period have the deviation, so that the charging process is optimized, and the charging efficiency is improved.
And the data storage module is connected with the central control module and used for storing the judgment result of the central control module and providing data information for optimizing the charging process of the storage battery.
Fig. 2 and fig. 3 are schematic diagrams of a charging voltage variation curve in a constant current charging stage according to an embodiment of the present invention and a charging current variation curve in a constant voltage charging stage according to an embodiment of the present invention, respectively.
Specifically, a constant voltage current-limiting charging mode is adopted during uniform charging, a constant current charging mode is adopted at the initial charging stage, when the voltage of the battery reaches a preset value, the constant voltage charging mode is automatically switched, and when the current in the detection circuit keeps unchanged for three hours, the automatic uniform floating charging conversion circuit automatically switches to floating charging. In the constant-current charging stage, the charging voltage in the stage is corrected by monitoring the change of the density of the electrolyte of the battery; in the constant voltage charging stage, the charging current in the stage is corrected by monitoring the change of the density of the electrolyte of the battery; in this embodiment, the environmental temperature of the data room is set to 25 ℃, and as for the environmental temperature variation factor not considered in this embodiment, this embodiment will not be discussed.
Specifically, when the storage battery is in a constant-current charging stage and the charging time reaches a preset unit time, if the central control module determines that the current-period actual variation curve f1 of the charging voltage deviates from the current-period preset variation curve f0, the central control module extracts a charging voltage coordinate f (t, U) preset at the current time point, determines a first intersection point k1 of the current-period actual variation curve f1 and the current-period preset variation curve f0, and determines a first voltage curve slope a1 according to the first intersection point k1 and the preset charging voltage coordinate f (t, U), wherein the abscissa t is time, and the ordinate U is the charging voltage. At least one intersection point exists between the actual variation curve and the preset variation curve in this embodiment, and as for the case that overlap or deviation of other curves is not considered in this embodiment, this embodiment will not be discussed. In addition, in this embodiment, the actual variation curve of the current time period may be extended by simulation, and an intersection point may be generated between the actual variation curve of the current time period and the preset variation curve.
Specifically, when the central control module corrects the charging voltage of the next period, the actual charging voltage U1 at the current time point is obtained according to the slope a1 of the first voltage curve at the first intersection point k1, and a1=Δu/Δ t is set, where Δ U = | U0-U |, and Δ t = | t0-t |, where t0 is the abscissa of the first intersection point k1, and U0 is the ordinate of the first intersection point k 1.
Specifically, the central control module obtains an actual charging voltage U1 at the current time point according to a preset charging voltage U at the current time point and a first voltage curve slope a1, sets U1= U × a1, extracts an electrolyte density ρ 1 at the current time point and an electrolyte density ρ corresponding to the preset charging voltage U at the current time point, calculates a difference value Δ ρ between ρ 1 and ρ, and corrects the charging voltage at the next time period according to the Δ ρ, so that the charging process is further optimized, and the charging efficiency is improved.
Specifically, the central control module is provided with a first preset charging voltage electrolyte density deviation delta rho 1, a second preset charging voltage electrolyte density deviation delta rho 2, a first preset charging voltage correction coefficient e1, a second preset charging voltage correction coefficient e2 and a third preset charging voltage correction coefficient e3, wherein the delta rho 1 is smaller than the delta rho 2, 0.1 is larger than e1, smaller than e2 and smaller than e3 and smaller than 0.3, when the central control module corrects the next charging voltage according to the delta rho, the delta rho is set to be | rho 1-rho |, and the central control module selects a corresponding correction coefficient according to the delta rho to correct the next charging voltage to a corresponding value;
if the delta rho is not more than the delta rho 1, the central control module selects e1 to correct the charging voltage to a corresponding value;
if the delta rho 1 is less than or equal to the delta rho 2, the central control module corrects the charging voltage to a corresponding value by using e 2;
and if the delta rho 2 is less than the delta rho, the central control module selects e3 to correct the charging voltage to a corresponding value.
Specifically, when the central control module selects ei to correct the charging voltage to a corresponding value, i =1, 2, 3 is set, the corrected charging voltage is recorded as U1 ', and if the central control module determines that the preset charging voltage U at the current time point is greater than the actual charging voltage U1 at the current time point, U1' = U1 × (1 + ei) is set; if the central control module determines that the preset charging voltage U at the current time point is less than the actual charging voltage U1 at the current time point, U1' = U1 × (1-ei) is set, so that the charging process is further optimized, and the charging efficiency is improved.
Specifically, the central control module converts the charging mode of the storage battery into constant-voltage charging when judging that the battery voltage reaches a preset value U0; when the constant-voltage charging time of the central control module reaches the preset unit time, if the central control module judges that the current time interval actual change curve g1 of the charging current has a deviation from the current time interval preset change curve g0, the central control module corrects the charging current of the next time interval according to the deviation, so that the charging process is further optimized, and the charging efficiency is improved.
Specifically, the central control module extracts a preset charging current coordinate g (t, a) at a current time point, determines a first intersection point Q1 (t 0, a 0) of a current-period actual change curve g1 and a current-period preset change curve g0, determines a first current curve slope b1 according to the first intersection point Q1 (t 0, a 0) and the preset charging current coordinate g (t, a), sets at least one intersection point between the actual change curve and the preset change curve, wherein an abscissa t is time and a ordinate a is charging current, and simultaneously obtains an actual charging current a1 at the current time point according to the first current curve slope b1, and sets b1=Δa =Δt, wherein a = | a0-a |, Δ t = | t0-t |, sets a1= a × b1, wherein a is the preset charging current at the current time point, and the current density P extracted by the central control module at the current time point corresponds to the current charging current time point P38 The difference value delta P between P1 and P is calculated, the charging current of the next period is corrected according to the delta P, the charging process is further optimized, and the charging efficiency is improved.
Specifically, the central control module is provided with a first preset charging current electrolyte density deviation delta P1, a second preset charging current electrolyte density deviation delta P2, a first preset charging current correction coefficient w1, a second preset charging current correction coefficient w2 and a third preset charging current correction coefficient w3, wherein delta P1 is less than delta P2, 0.03 is less than w1 is less than w2 is less than w3 is less than 0.05, when the central control module corrects the charging current of the next time period according to delta P, delta P = | P1-P | is set, and the central control module selects a corresponding correction coefficient according to delta P to correct the charging current of the next time period to a corresponding value;
if the delta P is less than or equal to the delta P1, the central control module selects w1 to correct the charging current to a corresponding value;
if the value of delta P is more than delta P1 and less than or equal to delta P2, the central control module corrects the charging current to a corresponding value by using w 2;
if delta P2 is less than delta P, the central control module selects w3 to correct the charging current to a corresponding value.
Specifically, when the central control module selects wj to correct the charging current to a corresponding value, j =1, 2, 3 is set, and if the central control module determines that the preset charging current a at the current time point is greater than the actual charging current a1 at the current time point, a 1' = a1 × (1 + wj) is set; if the central control module determines that the preset charging current a at the current time point is less than the actual charging current a1 at the current time point, a 1' = a1 × (1-wj) is set, so that the charging process is further optimized, and the charging efficiency is improved.
Specifically, the central control module adjusts the charging current by controlling the adjusting resistor or by adjusting the charging voltage, and the embodiment does not limit the manner of adjusting the charging current.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention; various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A monitoring system for monitoring a data room battery, comprising:
the data acquisition module is used for acquiring density change information of the electrolyte, charging voltage data and charging current data in real time when the storage batteries of the data machine room are charged uniformly;
the central control module is connected with the data acquisition module and used for correcting the charging voltage or the charging current according to the acquisition result of the data acquisition module, extracting the density change information of the electrolyte acquired by the data acquisition module when the charging time reaches a preset unit time and forming an actual change curve of the charging voltage or the charging current according to the acquisition information, and correcting the charging voltage or the charging current in the next period according to the deviation when judging that the actual change curve in the current period has the deviation with the preset change curve in the current period;
the data storage module is connected with the central control module and used for storing the judgment result of the central control module and providing data information for optimizing the charging process of the storage battery;
when the storage battery is in a constant-current charging stage and the charging time reaches a preset unit time, if the central control module judges that the current time period actual change curve f1 of the charging voltage has a deviation from the current time period preset change curve f0, the central control module extracts a preset charging voltage coordinate f (t, U) of the current time point, determines a first cross point position k1 of the current time period actual change curve f1 and the current time period preset change curve f0, determines a first voltage curve slope a1 according to the first cross point position k1 and the preset charging voltage coordinate f (t, U), and sets that at least one cross point position exists between the actual change curve and the preset change curve, wherein the cross point t is time, and the ordinate U is the charging voltage;
when the central control module corrects the charging voltage of the next time period, the actual charging voltage U1 of the current time point is obtained according to the slope a1 of a first voltage curve at the first intersection point k1, a1=Δu/Δ t is set, wherein Δ U = | U0-U |, and Δ t = | t0-t |, in the formula, t0 is the horizontal coordinate of the first intersection point k1, and U0 is the vertical coordinate of the first intersection point k 1;
the central control module obtains an actual charging voltage U1 at the current time point according to a preset charging voltage U at the current time point and a first voltage curve slope a1, sets U1= U × a1, extracts an electrolyte density ρ 1 at the current time point and an electrolyte density ρ corresponding to the preset charging voltage U at the current time point, calculates a difference value Δ ρ between ρ 1 and ρ, and corrects the charging voltage of the next period according to the Δ ρ;
when the central control module judges that the voltage of the battery reaches a preset value U0, the charging mode of the storage battery is converted into constant-voltage charging; when the constant voltage charging time of the central control module reaches the preset unit time, if the central control module judges that the current time interval actual variation curve g1 of the charging current has a deviation from the current time interval preset variation curve g0, the central control module corrects the charging current of the next time interval according to the deviation;
the central control module extracts a preset charging current coordinate g (t, A) at a current time point, determines a first cross point position Q1 (t 0, A0) of an actual change curve g1 and a preset change curve g0 at the current time point, determines a first current curve slope b1 according to the first cross point position Q1 (t 0, A0) and the preset charging current coordinate g (t, A), sets at least one cross point position between the actual change curve and the preset change curve, wherein the abscissa t is time, the ordinate A is charging current, and simultaneously obtains an actual charging current A1 at the current time point according to the first current curve slope b1, and sets b1=ΔA/Δ t, wherein A = | A0-A |, [ delta t = | t0-t |, sets A1= A × 1, wherein A is the preset current charging current at the current time point, and the current density of the central control module extracts a corresponding to the current electrolysis current time point P1 at the current electrolysis time point And calculating the difference value delta P between P1 and P, and correcting the charging current of the next period according to delta P.
2. The monitoring system for monitoring the storage batteries of the data machine room according to claim 1, wherein the central control module is provided with a first preset charging voltage electrolyte density deviation Δ ρ 1, a second preset charging voltage electrolyte density deviation Δ ρ 2, a first preset charging voltage correction coefficient e1, a second preset charging voltage correction coefficient e2 and a third preset charging voltage correction coefficient e3, wherein Δ ρ 1 is less than Δ ρ 2, 0.1 is less than e1 is less than e2 is less than e3 is less than 0.3, when the central control module corrects the next charging voltage according to Δ ρ, Δ ρ = | ρ 1- ρ |, the central control module selects a corresponding correction coefficient according to Δ ρ to correct the next charging voltage to a corresponding value;
if the delta rho is less than or equal to the delta rho 1, the central control module selects e1 to correct the charging voltage to a corresponding value;
if the delta rho 1 is less than the delta rho and is less than or equal to the delta rho 2, the central control module selects e2 to correct the charging voltage to a corresponding value;
and if the delta rho 2 is less than the delta rho, the central control module selects e3 to correct the charging voltage to a corresponding value.
3. The monitoring system for monitoring the storage batteries of the data room of claim 2, wherein when the central control module selects ei to correct the charging voltage to a corresponding value, i =1, 2, 3 is set, the corrected charging voltage is recorded as U1 ', and if the central control module determines that the preset charging voltage U at the current time point is greater than the actual charging voltage U1 at the current time point, U1' = U1 x (1 + ei) is set; if the central control module determines that the preset charging voltage U at the current time point is less than the actual charging voltage U1 at the current time point, U1' = U1 × (1-ei) is set.
4. The monitoring system for monitoring the storage batteries of the data machine room according to claim 1, wherein the central control module is provided with a first preset charging current electrolyte density deviation Δ P1, a second preset charging current electrolyte density deviation Δ P2, a first preset charging current correction coefficient w1, a second preset charging current correction coefficient w2 and a third preset charging current correction coefficient w3, wherein Δ P1 < [ delta ] P2, 0.03 < w1 < w2 < w3 < 0.05, when the central control module corrects the next charging current according to Δ P, the central control module sets = | P1-P |, and selects the corresponding correction coefficient according to Δ P to correct the next charging current to the corresponding value;
if the delta P is less than or equal to the delta P1, the central control module selects w1 to correct the charging current to a corresponding value;
if the value of delta P is more than delta P1 and less than or equal to delta P2, the central control module corrects the charging current to a corresponding value by using w 2;
if delta P2 is less than delta P, the central control module selects w3 to correct the charging current to a corresponding value.
5. The monitoring system for monitoring a storage battery of a data room of claim 4, wherein when the central control module selects wj to modify the charging current to a corresponding value, j =1, 2, 3 is set, and if the central control module determines that the preset charging current A at the current time point is greater than the actual charging current A1 at the current time point, A1' = A1 × (1 + wj) is set; if the central control module determines that the preset charging current a at the current time point is less than the actual charging current a1 at the current time point, a 1' = a1 × (1-wj) is set.
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| CN86208333U (en) * | 1986-10-29 | 1987-09-02 | 福州市能源利用研究所 | Automatic control device for the charging and discharging of lead accumulator |
| DE102005015729A1 (en) * | 2004-04-23 | 2005-12-01 | Robert Bosch Gmbh | Method and arrangement for determining operating parameters of an electrochemical storage battery |
| CN102176627A (en) * | 2011-02-10 | 2011-09-07 | 张佳宾 | Adaptive measurement and control system for charge-discharge process of integrated storage battery |
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