CN105277886A - Method and device for detecting residual service life of storage battery - Google Patents
Method and device for detecting residual service life of storage battery Download PDFInfo
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- CN105277886A CN105277886A CN201410351559.9A CN201410351559A CN105277886A CN 105277886 A CN105277886 A CN 105277886A CN 201410351559 A CN201410351559 A CN 201410351559A CN 105277886 A CN105277886 A CN 105277886A
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Abstract
The embodiment of the invention provides a method and device for detecting the residual service life of a storage battery in order to detect the residual service life of the storage battery and timely remind a user to replace the storage battery in a system using the storage battery for preventing the system from generating faults. The method comprises steps of: determining the current floating charge service life of the storage battery; determining the current residual cycle life of the storage battery; using a minimum value of the determined current floating charge service life of the storage battery and the determined current residual cycle life of the storage battery as the current residual service life of the storage battery; and giving alarm information when the current residual service life of the storage battery is less than a threshold.
Description
Technical field
The present invention relates to electric and electronic technical field, particularly relate to a kind of detection method and device of residual life of accumulator.
Background technology
The residual life detecting accumulator is directly connected to the result of use of accumulator, and tool has very great significance, and real-time online ground accurately detects the residual life of accumulator, can facilitate the maintenance of accumulator.
Mainly screened by end-of-life or close to the accumulator stopped by fault detect at present, this method well can not detect the residual life of accumulator, the main method of fault detect is internal resistance (conductance) mensuration of accumulator: by measuring the internal resistance (or conductance) of accumulator, the accumulator that internal resistance (conductance) is abnormal screens.But, some accumulator broken down is not diagnosed by inner walkway, and the method for fault detect can not detect the residual life of accumulator, this makes cannot when accumulator residual life be less than threshold value, timely reminding user to replace uses the accumulator in the system of accumulator, this may cause this system errors, and such as, some data in system can not back up in time.
In sum, also there is no a kind of method that can detect the residual life of accumulator at present, this makes cannot when accumulator residual life be less than threshold value, and timely reminding user to replace uses the accumulator in the system of accumulator, thus may cause system errors.
Summary of the invention
Embodiments provide a kind of detection method and device of residual life of accumulator, in order to detect the residual life of accumulator, use the accumulator in the system of accumulator with timely reminding user to replace, avoid system errors.
Based on the problems referred to above, the detection method of the residual life of a kind of accumulator that the embodiment of the present invention provides, comprising:
Determine the residue float life that accumulator is current;
Determine the cycles left life-span that described accumulator is current;
By the current residue float life of the described accumulator determined and the less value in the current cycles left life-span of the described accumulator determined, as the residual life that described accumulator is current;
When the current residual life-span of described accumulator is less than threshold value, send warning information.
The pick-up unit of the residual life of a kind of accumulator that the embodiment of the present invention provides, comprising:
First determination module, for determining the residue float life that accumulator is current;
Second determination module, for determining the cycles left life-span that described accumulator is current;
3rd determination module, for by the current residue float life of the described accumulator determined and the less value in the current cycles left life-span of the described accumulator determined, as the residual life that described accumulator is current;
Judge alarm module, for when the current residual life-span of described accumulator is less than threshold value, send warning information.
The beneficial effect of the embodiment of the present invention comprises:
The detection method of the residual life of a kind of accumulator that the embodiment of the present invention provides, by determining the current residue float life of accumulator and this accumulator current cycles left life-span, and using value less in both as the current residual life of this accumulator, thus achieve the real-time detection of the residual life of accumulator, and when the current residual life-span of described accumulator is less than threshold value, warning information is sent to user, thus reminding user to replace uses the accumulator in the system of accumulator in time, avoids system errors.
Accompanying drawing explanation
One of process flow diagram of the detection method of the residual life of the accumulator that Fig. 1 provides for the embodiment of the present invention;
The process flow diagram two of the detection method of the residual life of the accumulator that Fig. 2 provides for the embodiment of the present invention;
The process flow diagram three of the detection method of the residual life of the accumulator that Fig. 3 provides for the embodiment of the present invention;
The process flow diagram four of the detection method of the residual life of the accumulator that Fig. 4 provides for the embodiment of the present invention;
The structural drawing of the pick-up unit of the residual life of the accumulator that Fig. 5 provides for the embodiment of the present invention.
Embodiment
Embodiments provide a kind of detection method of residual life of accumulator, the method is after determining the current residue float life of the accumulator cycles left life-span current with this accumulator, using value less in both as the current residual life of this accumulator, thus achieve the real-time detection of the residual life of accumulator, make it possible to the accumulator in the system of timely reminding user to replace use accumulator, avoid system errors.
Below in conjunction with Figure of description, the detection method of residual life of a kind of accumulator that the embodiment of the present invention provides and the embodiment of device are described.
The detection method of the residual life of a kind of accumulator that the embodiment of the present invention provides, as shown in Figure 1, comprising:
S101, determine the residue float life that accumulator is current;
S102, determine the cycles left life-span that described accumulator is current;
S103, by the less value in the current residue float life of the described accumulator determined and current cycles left life-span of described accumulator of determining, as the residual life that described accumulator is current.
If the current residue float life of accumulator is Lf, this accumulator current cycles left life-span is Lc, and the residual life that so this accumulator is current is Le=min (Lf, Lc).
S104, when the current residual life-span of described accumulator is less than threshold value, send warning information.
Wherein, S101 and S102 there is no temporal sequencing, first can perform S101, then perform S102, also first can perform S102, then perform S101, can also perform by S101 and S102 simultaneously.
Alternatively, the detection method of the residual life of a kind of accumulator that the embodiment of the present invention provides, as shown in Figure 2, determine specifically to comprise the residue float life that accumulator is current:
S201, expectation float life according to the relation between storage time of described accumulator and float life damping capacity and described accumulator, determine float life when described accumulator is brought into use; The expectation float life of described accumulator obtains in the pre-test of described accumulator use;
The temperature coefficient of S202, float life when bringing into use according to described accumulator, time that described accumulator has used and described accumulator, determines the residue float life that described accumulator is current; The time that described accumulator has used obtains from using the system of described accumulator;
Wherein, described temperature coefficient is the ratio of the float life under described accumulator environment temperature in use and the float life under preset temperature.
Under a certain application scenarios, the expectation float life of accumulator is Lt, and the storage time of accumulator is k, and the relation between the storage time of this accumulator and float life damping capacity comprises: when storage time is k, and the damping capacity of float life is L
-, therefore, float life L0=Lt-L when accumulator is brought into use
-.And then float life when bringing into use according to this accumulator, time that this accumulator has used and this accumulator temperature coefficient, determine the residue float life that this accumulator is current.
Alternatively, the detection method of the residual life of a kind of accumulator that the embodiment of the present invention provides, as shown in Figure 3, the temperature coefficient of the time that float life when bringing into use according to described accumulator, described accumulator have used and described accumulator, determine specifically to comprise the residue float life that described accumulator is current:
The time that S301, float life when bringing into use according to described accumulator, described accumulator have used and described accumulator temperature coefficient in use, determine the residue float life of described accumulator under preset temperature;
S302, according to the residue float life of described accumulator under preset temperature and the temperature coefficient of described accumulator under current environment for use, determine the residue float life that described accumulator is current.
Under a certain application scenarios, float life when accumulator is brought into use is L0, from the time that this accumulator is brought into use, after first month, the residue float life L1=L0-K0*1 of this accumulator under preset temperature, wherein, 1 refers to one month, K0 refers to the temperature coefficient of accumulator when first month, the ratio of the float life namely under the average environment temperature of this accumulator when first month and the float life under preset temperature.Therefore, after n-th month, the residue float life of this accumulator under preset temperature
wherein, Kj refers to the temperature coefficient of accumulator when jth month, the ratio of the float life namely under the average environment temperature of this accumulator when jth month and the float life under preset temperature.
Determining the residue float life of accumulator under preset temperature
after, the temperature coefficient of the current residing environment of this accumulator is adopted to revise it, obtain the residue float life Lf=Ln*Ky that this accumulator is current, wherein, Ky is the temperature coefficient of this accumulator under current environment for use, the ratio of the float life namely under the environment temperature of this accumulator in current environment for use and the float life under preset temperature.
Alternatively, the detection method of the residual life of a kind of accumulator that the embodiment of the present invention provides, as shown in Figure 4, determine specifically to comprise the cycles left life-span that described accumulator is current:
S401, from use the system of described accumulator obtain the number of times that described accumulator circulated, described accumulator from current time to current time before preset duration in cycle index;
S402, the number of times circulated according to the expectation cycle life of described accumulator, described accumulator, described accumulator from current time to current time before preset duration in access times and described preset duration, determine the cycles left life-span that described accumulator is current.
Wherein, the expectation cycle life of accumulator obtains in the pre-test of this accumulator use.The frequency n that accumulator has circulated is total discharge capacity Ct of this accumulator and the ratio of the rated capacity Cr of the typical discharge rate of this accumulator, i.e. n=Ct/Cr.Accumulator from current time to current time before preset duration in cycle index Ny be accumulator from current time to current time before preset duration in the ratio of discharge capacity Cy and the rated capacity Cr of the typical discharge rate of this accumulator, i.e. Ny=Cy/Cr.The rated capacity of the typical discharge rate of accumulator is relevant to the environment for use of accumulator, such as, when accumulator is used in outdoor cabinet and communication power supply, the rated capacity Cr=0.85C10 of the typical discharge rate of accumulator, when accumulator is used in UPS, the rated capacity Cr=0.4C10 of the typical discharge rate of accumulator, wherein C10 is this accumulator discharge capacity of 10 hours.
Under a certain application scenarios, the expectation cycle life of accumulator is C, and the number of times that this accumulator has circulated is n, and so the residue available cycles life-span of accumulator is C-n.
Certainly, it is also conceivable to accumulator environment temperature in use and discharge-rate to the impact in the residue available cycles life-span of accumulator, thus the residue available cycles life-span of accumulator is revised.But, in practice, because less than 40 DEG C are not obvious to the residue available cycles aging effects of accumulator, therefore, the impact of environment temperature can be ignored here.Certainly, simple in order to calculate, also can ignore the impact of discharge-rate on the residue available cycles life-span of accumulator.
When environment temperature when not considering that accumulator uses and discharge-rate are on the affecting of the residue available cycles life-span of accumulator, the residue available cycles life-span of accumulator is C-n, cycles left life-span Lc=(C-n) the * T/Ny that this accumulator is current, wherein, Ny be accumulator from current time to current time before preset duration in cycle index Ny, T is preset duration.
Based on same inventive concept, the embodiment of the present invention additionally provides a kind of pick-up unit of residual life of accumulator, the principle of dealing with problems due to this device is similar to the detection method of the residual life of aforementioned accumulator cells, therefore the enforcement of this device see the enforcement of preceding method, can repeat part and repeats no more.
The pick-up unit of the residual life of a kind of accumulator that the embodiment of the present invention provides, as shown in Figure 5, comprising:
First determination module 51, for determining the residue float life that accumulator is current;
Second determination module 52, for determining the cycles left life-span that described accumulator is current;
3rd determination module 53, for by the current residue float life of the described accumulator determined and the less value in the current cycles left life-span of the described accumulator determined, as the residual life that described accumulator is current;
Judge alarm module 54, for when the current residual life-span of described accumulator is less than threshold value, send warning information.
Alternatively, the first determination module 51 specifically for: according to the expectation float life of the relation between storage time of described accumulator and float life damping capacity and described accumulator, determine float life when described accumulator is brought into use; The expectation float life of described accumulator obtains in the pre-test of described accumulator use; The temperature coefficient of the time that float life when bringing into use according to described accumulator, described accumulator have used and described accumulator, determines the residue float life that described accumulator is current; The time that described accumulator has used obtains from using the system of described accumulator; Wherein, described temperature coefficient is the ratio of the float life under described accumulator environment temperature in use and the float life under preset temperature.
Alternatively, the first determination module 51 specifically for: according to the expectation float life of the relation between storage time of described accumulator and float life damping capacity and described accumulator, determine float life when described accumulator is brought into use; The time that float life when bringing into use according to described accumulator, described accumulator have used and described accumulator temperature coefficient in use, determine the residue float life of described accumulator under preset temperature; According to the residue float life of described accumulator under preset temperature and the temperature coefficient of described accumulator under current environment for use, determine the residue float life that described accumulator is current.
Alternatively, the second determination module 52 specifically for: from use the system of described accumulator obtain the number of times that described accumulator circulated, described accumulator from current time to current time before preset duration in cycle index; The number of times circulated according to the expectation cycle life of described accumulator, described accumulator, described accumulator from current time to current time before preset duration in cycle index and described preset duration, determine the cycles left life-span that described accumulator is current.The expectation cycle life of described accumulator obtains in the pre-test of described accumulator use.
Wherein, the number of times that described accumulator has circulated is total discharge capacity of described accumulator and the ratio of the rated capacity of the typical discharge rate of described accumulator; Described accumulator from current time to current time before preset duration in cycle index, be the discharge capacity in the preset duration before described accumulator is from current time to current time and the ratio of the rated capacity of the typical discharge rate of described accumulator.
Through the above description of the embodiments, those skilled in the art can be well understood to the embodiment of the present invention can by hardware implementing, and the mode that also can add necessary general hardware platform by software realizes.Based on such understanding, the technical scheme of the embodiment of the present invention can embody with the form of software product, it (can be CD-ROM that this software product can be stored in a non-volatile memory medium, USB flash disk, portable hard drive etc.) in, comprise some instructions and perform method described in each embodiment of the present invention in order to make a computer equipment (can be personal computer, server, or the network equipment etc.).
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, the module in accompanying drawing or flow process might not be that enforcement the present invention is necessary.
It will be appreciated by those skilled in the art that the module in the device in embodiment can carry out being distributed in the device of embodiment according to embodiment description, also can carry out respective change and be arranged in the one or more devices being different from the present embodiment.The module of above-described embodiment can merge into a module, also can split into multiple submodule further.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (10)
1. a detection method for the residual life of accumulator, is characterized in that, comprising:
Determine the residue float life that accumulator is current;
Determine the cycles left life-span that described accumulator is current;
By the current residue float life of the described accumulator determined and the less value in the current cycles left life-span of the described accumulator determined, as the residual life that described accumulator is current;
When the current residual life-span of described accumulator is less than threshold value, send warning information.
2. the method for claim 1, is characterized in that, determines specifically to comprise the residue float life that accumulator is current:
According to the expectation float life of the relation between storage time of described accumulator and float life damping capacity and described accumulator, determine float life when described accumulator is brought into use; The expectation float life of described accumulator obtains in the pre-test of described accumulator use;
The temperature coefficient of the time that float life when bringing into use according to described accumulator, described accumulator have used and described accumulator, determines the residue float life that described accumulator is current; The time that described accumulator has used obtains from using the system of described accumulator;
Wherein, described temperature coefficient is the ratio of the float life under described accumulator environment temperature in use and the float life under preset temperature.
3. method as claimed in claim 2, it is characterized in that, the temperature coefficient of the time that float life when bringing into use according to described accumulator, described accumulator have used and described accumulator, determine specifically to comprise the residue float life that described accumulator is current:
The time that float life when bringing into use according to described accumulator, described accumulator have used and described accumulator temperature coefficient in use, determine the residue float life of described accumulator under preset temperature;
According to the residue float life of described accumulator under preset temperature and the temperature coefficient of described accumulator under current environment for use, determine the residue float life that described accumulator is current.
4. the method for claim 1, is characterized in that, determines specifically to comprise the cycles left life-span that described accumulator is current:
From use the system of described accumulator obtain the number of times that described accumulator circulated, described accumulator from current time to current time before preset duration in cycle index;
The number of times circulated according to the expectation cycle life of described accumulator, described accumulator, described accumulator from current time to current time before preset duration in cycle index and described preset duration, determine the cycles left life-span that described accumulator is current;
Wherein, the expectation cycle life of described accumulator obtains in the pre-test of described accumulator use.
5. method as claimed in claim 4, is characterized in that, the number of times that described accumulator has circulated is total discharge capacity of described accumulator and the ratio of the rated capacity of the typical discharge rate of described accumulator;
Described accumulator from current time to current time before preset duration in cycle index, be the discharge capacity in the preset duration before described accumulator is from current time to current time and the ratio of the rated capacity of the typical discharge rate of described accumulator.
6. a pick-up unit for the residual life of accumulator, is characterized in that, comprising:
First determination module, for determining the residue float life that accumulator is current;
Second determination module, for determining the cycles left life-span that described accumulator is current;
3rd determination module, for by the current residue float life of the described accumulator determined and the less value in the current cycles left life-span of the described accumulator determined, as the residual life that described accumulator is current;
Judge alarm module, for when the current residual life-span of described accumulator is less than threshold value, send warning information.
7. device as claimed in claim 6, is characterized in that, described first determination module specifically for:
According to the expectation float life of the relation between storage time of described accumulator and float life damping capacity and described accumulator, determine float life when described accumulator is brought into use; The expectation float life of described accumulator obtains in the pre-test of described accumulator use; The temperature coefficient of the time that float life when bringing into use according to described accumulator, described accumulator have used and described accumulator, determines the residue float life that described accumulator is current; The time that described accumulator has used obtains from using the system of described accumulator; Wherein, described temperature coefficient is the ratio of the float life under described accumulator environment temperature in use and the float life under preset temperature.
8. device as claimed in claim 7, is characterized in that, described first determination module specifically for:
According to the expectation float life of the relation between storage time of described accumulator and float life damping capacity and described accumulator, determine float life when described accumulator is brought into use; The time that float life when bringing into use according to described accumulator, described accumulator have used and described accumulator temperature coefficient in use, determine the residue float life of described accumulator under preset temperature; According to the residue float life of described accumulator under preset temperature and the temperature coefficient of described accumulator under current environment for use, determine the residue float life that described accumulator is current.
9. device as claimed in claim 6, is characterized in that, described second determination module specifically for:
From use the system of described accumulator obtain the number of times that described accumulator circulated, described accumulator from current time to current time before preset duration in cycle index; The number of times circulated according to the expectation cycle life of described accumulator, described accumulator, described accumulator from current time to current time before preset duration in cycle index and described preset duration, determine the cycles left life-span that described accumulator is current; Wherein, the expectation cycle life of described accumulator obtains in the pre-test of described accumulator use.
10. device as claimed in claim 9, is characterized in that, the number of times that described accumulator has circulated is total discharge capacity of described accumulator and the ratio of the rated capacity of the typical discharge rate of described accumulator; Described accumulator from current time to current time before preset duration in cycle index, be the discharge capacity in the preset duration before described accumulator is from current time to current time and the ratio of the rated capacity of the typical discharge rate of described accumulator.
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| CN201410351559.9A CN105277886A (en) | 2014-07-22 | 2014-07-22 | Method and device for detecting residual service life of storage battery |
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| CN108957333A (en) * | 2018-05-17 | 2018-12-07 | 金卡智能集团股份有限公司 | Measuring instrument is replied by cable with lithium and closes battery life evaluation method |
| CN110687470A (en) * | 2019-10-03 | 2020-01-14 | 天合光能股份有限公司 | Method and system for on-line prediction of service life of lithium battery in energy storage system |
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| CN113125984A (en) * | 2021-03-09 | 2021-07-16 | 深圳拓邦股份有限公司 | Floor washing machine battery life calculation method and device and floor washing machine |
| CN113442784A (en) * | 2020-03-25 | 2021-09-28 | 北京新能源汽车股份有限公司 | Storage battery monitoring method and device and electric automobile |
| CN115136020A (en) * | 2019-12-23 | 2022-09-30 | 阿帕雷奥物联网有限责任公司 | Remote battery estimation |
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