CN110535196B - Charging method, charging device, and remote server performed in a power conversion facility - Google Patents
Charging method, charging device, and remote server performed in a power conversion facility Download PDFInfo
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- 238000007600 charging Methods 0.000 title claims abstract description 223
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 59
- 238000000034 method Methods 0.000 title claims abstract description 33
- 230000000630 rising effect Effects 0.000 claims 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 abstract description 35
- 229910001416 lithium ion Inorganic materials 0.000 abstract description 35
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000005611 electricity Effects 0.000 description 12
- 238000004590 computer program Methods 0.000 description 4
- 238000010277 constant-current charging Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000002618 waking effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
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- 101150114085 soc-2 gene Proteins 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The application provides a charging method, a charging device, a remote server and a computer storage medium which are executed in a power conversion facility. According to one aspect of the application, a charging method includes: determining a charging mode for the battery according to the starting charging time and/or the number of batteries with the charge state higher than or equal to a first threshold value in the power conversion facility; and charging the battery by using the determined charging mode until the state of charge of the battery is raised to the first threshold value and then standing the battery to be charged, without directly raising the state of charge of the battery to be charged to a full state of charge. Therefore, the lithium ion battery system can be effectively prevented from being stored in a high-charge state, and the service life of the lithium ion battery system is prolonged.
Description
Technical Field
The present application relates to a charging policy of a power conversion facility, and in particular, to a charging method, a charging device, and a remote server executed in the power conversion facility.
Background
In recent years, with the need to solve energy crisis and government support in policy, new energy automobile industry has shown explosive growth. The pure electric vehicle is a vehicle driven by electric power, the technology is relatively simple and mature, but the current disadvantage is short endurance mileage and low charging speed.
At present, all large lithium ion battery factories are striving to improve battery energy density, and the design of a lithium ion battery system is also moving a light-weight route, so that more electric quantity can be loaded in unit volume or weight, and further the endurance mileage of the whole vehicle is improved. Aiming at the problem of low charging speed, the lithium ion battery has not realized a revolutionary breakthrough in the rapid charging technology, and cannot achieve the purpose that the traditional fuel vehicle is completely charged for 5 minutes, so other solutions are needed. The battery replacement mode solves the problem of low charging speed from another thought. In different sections of cities or roads, the power exchange stations are arranged, full-power lithium ion battery systems are arranged in the power exchange stations, and a vehicle owner can select nearby power exchange stations to replace the lithium ion battery systems, so that the effect of quickly supplementing power to the pure electric vehicle is achieved.
The existing charging strategy of the battery replacement station can cause the lithium ion battery system to be stored under the 100% SOC (namely full charge state) calibrated by the battery management system after being fully charged, and the actual charge state of the lithium ion battery at the moment at least reaches more than 95%. Such storage conditions can accelerate degradation of lithium ion battery performance, shortening the service life of the lithium ion battery system.
The above information disclosed in the background section of the application is only for enhancement of understanding of the general background of the application and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art.
Disclosure of Invention
In order to solve at least one of the above problems of the prior art, the present application provides a charging method performed in a power conversion facility, the method comprising: determining a charging mode for a battery to be charged according to a starting charging time and/or the number of batteries with a state of charge higher than or equal to a first threshold value in the power conversion facility; and charging the battery to be charged by using the determined charging mode until the state of charge of the battery to be charged is raised to the first threshold value and then standing the battery to be charged without directly raising the state of charge of the battery to be charged to a full state of charge.
In the above charging method, the first threshold is 80% ± 2%.
The above charging method may further include: after receiving the user's power change demand, the stationary battery is started to be charged with a standard charging current.
In the above charging method, determining the charging mode for the battery to be charged according to the starting charging time and/or the number of batteries in the battery changing facility with a state of charge higher than or equal to a first threshold value comprises: determining the peak time and the rest time of power exchange; receiving a predicted power change number M of the power change facility from a remote server; and determining to charge in a first charging mode when the start charging time is at the rest period and a number of batteries in the battery change facility having a state of charge greater than or equal to a first threshold is greater than the predicted battery change number M.
In the above charging method, determining the charging mode for the battery to be charged according to the starting charging time and/or the number of batteries in the battery changing facility with a state of charge higher than or equal to a first threshold value comprises: determining the peak time and the rest time of power exchange; receiving a predicted power change number M of the power change facility from a remote server; and determining to charge in a second charging mode when the start charging time is at the peak period or when the start charging time is at the rest period but the number of batteries in the power conversion facility with a state of charge higher than or equal to a first threshold is less than or equal to the predicted power conversion number M.
In the above charging method, the first charging mode is charging at a standard charging current.
In the above charging method, the second charging mode is charging with a maximum allowable charging current.
In the above charging method, the predicted battery change amount M is updated periodically.
According to another aspect of the application there is provided a computer storage medium comprising instructions which when executed by a computer implement a charging method as hereinbefore described.
According to still another aspect of the present application, there is provided a charging device for a power conversion facility configured to receive a battery to be charged and to provide a charged battery, the charging device comprising: determining means for determining a charging mode for the battery to be charged based on a start charging time and a number of batteries in the battery change facility having a state of charge higher than or equal to a first threshold; and a first charging device for charging the battery to be charged by using the determined charging mode until the state of charge of the battery to be charged is raised to the first threshold value and then the battery to be charged is left to stand without directly raising the state of charge of the battery to be charged to a full state of charge.
In the above charging device, the charging device further includes: and the second charging device is used for starting to charge the standing battery with standard charging current after receiving the power change requirement of the user.
In the above-described charging apparatus, the determining means includes: the first determining unit is used for determining the peak time and the rest time of the power exchange; a receiving unit, configured to receive, from a remote server, a predicted power conversion number M of the power conversion facility; and a second determining unit configured to determine to charge in a first charging mode when the start charging time is in the rest period and the number of batteries in the power conversion facility having a state of charge higher than or equal to a first threshold is greater than the predicted power conversion number M.
In the above-described charging apparatus, the determining means includes: the first determining unit is used for determining the peak time and the rest time of the power exchange; a receiving unit, configured to receive, from a remote server, a predicted power conversion number M of the power conversion facility; and a third determining unit configured to determine to charge in a second charging mode when the start charging time is at the peak period, or when the start charging time is at the rest period but the number of batteries in the power conversion facility having a state of charge higher than or equal to a first threshold value is less than or equal to the predicted power conversion number M.
In the above charging device, the first threshold is 80% ± 2%.
In the above-described charging device, the receiving unit is configured to receive the predicted battery change amount M that is updated periodically.
According to yet another aspect of the present application, there is provided a remote server comprising: a receiving unit that receives state of charge information from a vehicle; a prediction unit for predicting a predicted power conversion number M of each power conversion facility based on the position information of each power conversion facility and the received state of charge information; and a transmitting unit for transmitting the predicted electricity exchanging number M for the electricity exchanging facility to the charging device for the electricity exchanging facility as described above.
In the above remote server, the prediction unit is further configured to predict a peak period and a rest period of the power exchange based on the big data statistics.
In the above remote server, the transmitting unit is further configured to transmit the defined peak period and rest period of the power exchange to the charging device.
According to the technical scheme, the state of charge of the battery is raised to the first threshold (for example, 80% SOC) and then the battery is kept stand, so that the state of charge of the battery is not directly raised to the full state of charge or the high state of charge (for example, more than 95% SOC), the storage of the lithium ion battery system in the high state of charge is effectively avoided, and the service life of the lithium ion battery system is prolonged. Meanwhile, according to the technical scheme, the charging mode (charging current in one embodiment) of the battery to be charged is determined according to the starting charging time and/or the number of the batteries with the charge states higher than or equal to the first threshold value in the battery replacing facility, so that the number of times of high-current charging can be effectively reduced, and further the performance attenuation of the lithium ion battery system is reduced.
Other features and advantages of the methods and apparatus of the present application will be apparent from or elucidated with reference to the drawings, taken in conjunction with the accompanying drawings, and the detailed description which follows in conjunction with the accompanying drawings, serve to illustrate certain principles of the application.
Drawings
Fig. 1 is a flow chart showing a charging method performed in a power conversion facility according to an embodiment of the present application;
fig. 2 is a schematic view showing the structure of a charging device for a power exchanging facility according to an embodiment of the present application;
fig. 3 is a graph of charge time for a lithium-ion battery system in different charge modes according to one embodiment of the application; and
fig. 4 is a schematic diagram showing the structure of a remote server according to an embodiment of the present application.
Detailed Description
The following description describes specific embodiments of the application to teach those skilled in the art how to make and use the best mode of the application. Some conventional aspects have been simplified or omitted in order to teach the inventive principles. Those skilled in the art will appreciate variations from these embodiments that fall within the scope of the application. Those skilled in the art will appreciate that the features described below can be combined in various ways to form multiple variations of the application. Thus, the present application is not limited to the specific embodiments described below, but only by the claims and their equivalents.
A power conversion facility is in the context of the present application an energy station that provides for the rapid replacement of a power battery (e.g., a lithium ion battery). The battery in the power conversion facility is generally provided with a battery in a full charge state. The car owner can select nearby electricity changing facilities to change the battery, so that the effect of quickly supplementing power to the electric car is achieved. The power exchanging facility may also be referred to as a power exchanging station that provides a power battery to be exchanged to a vehicle, a power exchanging device that removes a battery from the vehicle and exchanges a charged battery to the vehicle, a charging facility that charges the battery under exchange, and the like. However, the power exchanging facility according to the present application may include only a facility for charging the battery with a low power and/or storing the battery.
After the battery is removed from the electric vehicle, the power conversion facility typically also needs to charge the battery in a certain pattern. Current charging strategies typically employ either a slow charge mode or a fast charge mode. The slow charge mode refers to charging using a standard charging current of the battery, and the fast charge mode refers to charging using a maximum charging current allowed by the battery. However, regardless of the mode used, the existing charging strategy is to continuously charge the battery to 100% SOC (i.e., full state of charge), which can result in the battery (e.g., lithium ion battery) being stored at a high state of charge all the time after full charge. Such storage conditions can accelerate the decay of the performance of the lithium ion battery, shortening the service life of the lithium ion battery.
Fig. 1 is a flow chart illustrating a charging method 1000 performed in a power conversion facility according to an embodiment of the present application.
As shown in fig. 1, the charging method 1000 includes the steps of:
step 120 of determining a charging mode for the battery to be charged according to the start charging time and/or the number of batteries with a state of charge within the battery change facility higher than or equal to a first threshold; and
and 140, charging the battery to be charged by using the determined charging mode until the state of charge of the battery to be charged is raised to the first threshold value and then standing the battery to be charged, without directly raising the state of charge of the battery to be charged to a full state of charge.
Compared with the prior art, the technical scheme effectively avoids the storage of the lithium ion battery system in the high charge state and prolongs the service life of the lithium ion battery system by lifting the charge state of the battery to the first threshold (for example, 80% SOC) and then standing the battery instead of directly lifting the charge state of the battery to the full charge state or the high charge state (for example, more than 95% SOC). In addition, according to the technical scheme, the charging current of the battery to be charged is determined according to at least one of the starting charging time and the number of the batteries with the charge states higher than or equal to the first threshold value in the battery replacing facility, so that the number of times of high-current charging is effectively reduced, and further the performance attenuation of the lithium ion battery system is reduced.
In one embodiment, the first threshold is 80% ± 2%. In one particular implementation, the setting of the first threshold is related to the type of battery to be charged. For example, for a 50Ah ternary lithium ion battery, the first threshold is preferably 80%, ±2% is error. Those skilled in the art will appreciate that the first threshold may be set to different values for different types of batteries, including but not limited to 80%.
Although not shown in fig. 1, the above-described charging method 1000 may further include: after receiving the user's power change demand, the stationary battery is started to be charged with a standard charging current. For example, the user initiates a demand 1 hour before a power change is required to wake the battery system to continue charging the stationary battery to 100% SOC. Thus, when the user changes battery, the stationary battery is charged to a full charge state.
In one embodiment, step 120 may further comprise the sub-steps of: determining the peak time and the rest time of power exchange; receiving a predicted power change number M of the power change facility from a remote server; and determining to charge in a first charging mode when the start charging time is at the rest period and a number of batteries in the battery change facility having a state of charge greater than or equal to a first threshold is greater than the predicted battery change number M; otherwise, determining to charge with the maximum allowable charging current of the second charging mode. In one embodiment, the first charging mode is charging at a standard charging current and the second charging mode is charging at a maximum allowable charging current. In one embodiment, the first charging mode is to charge the battery to be charged to 30% SOC at 1.3C and then to 80% SOC at 0.8C, which may provide a better form of protection for the battery.
Those skilled in the art will appreciate that the peak and off-peak (or low peak) periods of a power change can be differentiated based on statistics of the big data. For example, when the power change demand amount in a unit time is greater than the number of level change stations in the power change facility, the period is a peak period, and the other periods are off-peak periods. Other forms of data statistics may also be used in connection with the peak and off-peak determinations, such as by manual observation. In the above embodiments, the peak and hold periods are determined as to whether the power change demand per unit time is greater than the number of stations, but other forms of locating peak or hold periods are not precluded. A battery change platform is referred to herein as a platform for changing on-board batteries and typically includes a mechanism for unloading on-board batteries and loading the charged batteries onto the vehicle.
In one embodiment, the peak and hold periods may be estimated, for example, by the power conversion facility itself, or by a remote server and inform the power conversion facility of the estimated results. In addition to peak and rest periods, the remote server may also estimate the number of battery systems that need to be powered down during each period. Based on a determination of whether the start-up charging time is during a peak or rest period and/or whether the number of batteries in the power conversion facility with a state of charge higher than or equal to a certain threshold is greater than a predicted power conversion number, the charging device in the power conversion facility may charge the batteries in different charging modes.
In one embodiment, the predicted battery change amount M is updated periodically, such as every 30 minutes.
Fig. 2 is a schematic diagram showing the structure of a charging device 2000 for a power exchanging facility according to an embodiment of the present application. As shown in fig. 2, the charging apparatus 2000 includes a determining device 210 and a first charging device 220. Wherein the determining means 210 is configured to determine the charging mode for the battery to be charged according to the starting charging time and/or the number of batteries in the power conversion facility with a state of charge higher than or equal to the first threshold value. The first charging device 220 is configured to charge the battery to be charged using the determined charging mode until the state of charge of the battery to be charged is raised to the first threshold value and then rest the battery to be charged, without directly raising the state of charge of the battery to be charged to a full state of charge.
Although not shown in fig. 2, the charging apparatus 2000 may further include a second charging device. The second charging device is used for starting to charge the standing battery with standard charging current after receiving the power changing requirement of a user. For example, the user initiates the demand 1 hour before the need to change power. After receiving the user's demand, the second charging device starts charging the stationary battery and charges it to 100% SOC. Thus, when the user changes battery, the stationary battery is charged to a full charge state.
In one embodiment, the determining means 210 may further include: the first determining unit is used for determining the peak time and the rest time of the power exchange; a receiving unit, configured to receive, from a remote server, a predicted power conversion number M of the power conversion facility; and a second determining unit configured to determine to charge in a first charging mode when the start charging time is in the rest period and the number of batteries in the power conversion facility having a state of charge higher than or equal to a first threshold is greater than the predicted power conversion number M.
In one embodiment, the determining means 210 comprises: the first determining unit is used for determining the peak time and the rest time of the power exchange; a receiving unit, configured to receive, from a remote server, a predicted power conversion number M of the power conversion facility; and a third determining unit configured to determine to charge in a second charging mode when the start charging time is at the peak period, or when the start charging time is at the rest period but the number of batteries in the power conversion facility having a state of charge higher than or equal to a first threshold value is less than or equal to the predicted power conversion number M.
In yet another embodiment, the determining means 210 comprises only a receiving unit for receiving a predicted number of battery changes M of the battery change facility from a remote server, and a fourth determining unit for determining to charge at a standard charging current when the starting charging time is in the rest period and the number of batteries in the battery change facility having a state of charge higher than or equal to a first threshold is greater than the predicted number of battery changes M; otherwise, it is determined to charge with the maximum allowable charging current. In this embodiment, it will be appreciated by those skilled in the art that the first determining unit for determining the peak and rest periods of the power change may be provided in other entities, such as a remote server. That is, the remote server predicts the peak period and the rest period according to the statistics of the big data, and informs the determination device 210 of the prediction result or presets the prediction result in the determination device 210.
The following describes a battery system using a 50Ah ternary lithium ion battery as an example.
Firstly, according to the chemical system characteristics and design parameters of the lithium ion battery, the performance attenuation of the lithium ion battery is comprehensively considered, and the standard charging current and the allowable maximum charging current (namely the fast charging current) of the lithium ion battery are determined, so that the standard charging mode and the fast charging mode of the battery are determined. The standard charging current of the 50Ah lithium ion battery is 1/3C, the allowable maximum charging current is less than 80% SOC and is 1C, and the allowable maximum charging current is more than 80% SOC and is 1/3C. Therefore, if the charging time in the standard charging mode is 3 hours, the charging time in the quick charging mode is 0.8 hours at 0 to 80% SOC and 1.4 hours at 0 to 100% SOC.
And then, defining the peak period and the rest period of the power exchange by using the cloud big data statistical result. Based on the position information of each power conversion facility and the residual electric quantity reported to the cloud by the vehicle, the number M of the power conversion facilities needing power conversion is estimated through big data statistics results, and data is updated every 30 min. After the low-electricity or empty-electricity lithium ion battery system reaches the electricity changing facility, different charging modes are adopted according to the starting charging time and the condition that the SOC in the electricity changing facility is more than or equal to 80% of the number of the battery systems, and the details are shown in Table 1. When the charging time is the power change peak period or the number of battery systems with SOC more than or equal to 80% in the power change facility is less than M, a quick charging mode is adopted, and the standard charging mode is adopted for charging at other times.
Table 1 charging modes under different conditions
| Time to start charging of lithium ion battery system | Charging mode |
| Peak battery change period, and charging station soc=80% the number of battery systems is less than M | Quick charge mode (1C constant current charging to 80% SOC and standing waiting for waking up) |
| Peak battery change period, and charging station soc=80% of the number of battery systems is greater than M | Quick charge mode (1C constant current charging to 80% SOC and standing waiting for waking up) |
| Battery system number of charging station soc=80% is smaller than M during a battery change rest period | Quick charge mode (1C constant current charging to 80% SOC and standing waiting for waking up) |
| Battery system with battery change rest period and charging station soc=80%The number is greater than M | Standard charging mode (1/3C constant current charging to 80% SOC and standing waiting for waking up) |
In one example, the remote server is connected to a user app, a battery charging system within the battery change facility. When a user needs to change electricity for 1h, a need of changing electricity is initiated on the app, the need is sent to a charging system in a facility of changing electricity through cloud service, the charging system in the facility of changing electricity is awakened at the moment, a lithium ion battery which stands is continuously charged, the charging current is 1/3C at the moment, and after charging is finished, the user reaches the facility of changing electricity and starts changing electricity. In different charging modes, the charging time of the lithium ion battery system in different SOC intervals is shown in fig. 3.
The SOC value of the charging middle section and the time for a user to initiate the power change requirement can be adjusted according to specific conditions. If the SOC at the start of charging, the SOC at the middle rest and the SOC at the end of charging are SOC1, SOC2 and SOC3, respectively, the pre-SOC 2 charge rate is aC, and the post-SOC 2 charge rate is bC, the time required for the user to send the wake-up request in advance is (SOC 3-SOC 2)/b, in h. The total charge time is (SOC 3-SOC 2)/b+ (SOC 2-SOC 1)/a in h.
Fig. 4 is a schematic diagram showing the structure of a remote server 4000 according to an embodiment of the present application. As shown in fig. 4, the remote server 4000 includes: receiving unit 410, predicting unit 420, and transmitting unit 430. Wherein the receiving unit 410 is configured to receive state of charge information from the vehicle, the predicting unit 420 is configured to predict a predicted number of battery changes M for each battery change facility based on the location information of each battery change facility and the received state of charge information, and the transmitting unit 430 is configured to transmit the predicted number of battery changes M for the battery change facility to the charging device for the battery change facility.
In one embodiment, the prediction unit 420 is further configured to predict peak and hold periods for the battery change based on the big data statistics.
Optionally, the remote server 4000 may further comprise a definition unit 440 for defining peak periods and rest periods of the power exchange based on the big data statistics.
In one embodiment, the sending unit 430 may also be configured to send the defined peak and rest periods of the power change to the charging device.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of hardware, software, or a combination of hardware and software. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, magnetic disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable processing apparatus to produce a sequence of instructions that perform the specified operations.
In summary, according to the technical scheme of the application, the state of charge of the battery is raised to the first threshold (for example, 80% SOC) and then the battery is kept stand, so that the state of charge of the battery is not directly raised to the full state of charge or the high state of charge (for example, more than 95% SOC), the storage of the lithium ion battery system in the high state of charge is effectively avoided, and the service life of the lithium ion battery system is prolonged. Meanwhile, the technical scheme of the application also determines the charging current for the battery to be charged according to the starting charging time and the number of the batteries with the charge states higher than or equal to the first threshold value in the battery replacing facility, so that the charging times of large current are effectively reduced, and further, the performance attenuation of the lithium ion battery system is reduced.
The above examples mainly illustrate the charging method, the charging device, the remote server, and the computer storage medium of the present application, which are performed in the power conversion facility. Although only a few embodiments of the present application have been described, those skilled in the art will appreciate that the present application may be embodied in many other forms without departing from the spirit or scope thereof. Accordingly, the present examples and embodiments are to be considered as illustrative and not restrictive, and the application is intended to cover various modifications and substitutions without departing from the spirit and scope of the application as defined by the appended claims.
Claims (16)
1. A method of charging performed in a power conversion facility, the method comprising:
determining a charging mode for a battery to be charged according to a starting charging time and/or the number of batteries with a state of charge higher than or equal to a first threshold value in the power conversion facility; and
charging the battery to be charged with the determined charging mode until the state of charge of the battery to be charged rises to the first threshold value and then the battery to be charged is left to stand without directly rising the state of charge of the battery to be charged to a full state of charge,
wherein determining a charging mode for the battery to be charged according to a start charging time and/or a number of batteries in the battery change facility having a state of charge higher than or equal to a first threshold value comprises:
determining the peak time and the rest time of power exchange;
receiving a predicted power change number M of the power change facility from a remote server; and
and when the starting charging time is in the rest period and the number of batteries with the charge states higher than or equal to a first threshold value in the power conversion facility is larger than the predicted power conversion number M, determining to charge in a first charging mode.
2. The charging method of claim 1, wherein the first threshold is 80% ± 2%.
3. The charging method of claim 1, the method further comprising:
after receiving the user's power change demand, the stationary battery is started to be charged with a standard charging current.
4. The charging method of claim 1, wherein determining a charging mode for the battery to be charged based on a start-charging time and/or a number of batteries within the battery-change facility having a state of charge greater than or equal to a first threshold further comprises:
and when the starting charging time is in the peak period or the starting charging time is in the rest period but the number of batteries with the charge states higher than or equal to a first threshold value in the power conversion facility is smaller than or equal to the predicted power conversion number M, determining to charge in a second charging mode.
5. The charging method of claim 1, wherein the first charging mode is charging at a standard charging current.
6. The charging method of claim 4, wherein the second charging mode is charging with a maximum allowable charging current.
7. The charging method according to claim 1 or 4, wherein the predicted charge change amount M is updated periodically.
8. A computer storage medium comprising instructions which, when executed by a computer, implement the charging method of any one of claims 1 to 7.
9. A charging device for a power conversion facility configured to receive a battery to be charged and to provide a charged battery, the charging device comprising:
determining means for determining a charging mode for the battery to be charged based on a start charging time and a number of batteries in the battery change facility having a state of charge higher than or equal to a first threshold; and
a first charging means for charging the battery to be charged using the determined charging mode until the state of charge of the battery to be charged rises to the first threshold value and then the battery to be charged is left to stand without directly rising the state of charge of the battery to be charged to a full state of charge,
wherein the determining means comprises:
the first determining unit is used for determining the peak time and the rest time of the power exchange;
a receiving unit, configured to receive, from a remote server, a predicted power conversion number M of the power conversion facility; and
and the second determining unit is used for determining to charge in the first charging mode when the starting charging time is in the rest period and the number of batteries with the charge states higher than or equal to a first threshold value in the power changing facility is larger than the predicted power changing number M.
10. The charging device of claim 9, wherein the charging device further comprises:
and the second charging device is used for starting to charge the standing battery with standard charging current after receiving the power change requirement of the user.
11. The charging device according to claim 9, wherein the determining means further comprises:
and the third determining unit is used for determining to charge in the second charging mode when the starting charging time is in the peak period or the starting charging time is in the rest period and the number of batteries with the charge states higher than or equal to a first threshold value in the power conversion facility is smaller than or equal to the predicted power conversion number M.
12. The charging device according to any one of claims 9 to 11, wherein the first threshold value is 80% ± 2%.
13. The charging device of claim 9, wherein the receiving unit is configured to receive the predicted battery change number M that is updated periodically.
14. A remote server, the remote server comprising:
a receiving unit that receives state of charge information from a vehicle;
a prediction unit for predicting a predicted power conversion number M of each power conversion facility based on the position information of each power conversion facility and the received state of charge information; and
a transmitting unit for transmitting the predicted number of battery changes M for a battery change facility to the charging device for the battery change facility according to any one of claims 9 to 13.
15. The remote server of claim 14, wherein the prediction unit is further configured to predict peak and hold periods for a battery change based on big data statistics.
16. The remote server of claim 15, wherein the transmitting unit is further configured to transmit the defined peak and rest periods of the power change to the charging device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810513177.XA CN110535196B (en) | 2018-05-25 | 2018-05-25 | Charging method, charging device, and remote server performed in a power conversion facility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810513177.XA CN110535196B (en) | 2018-05-25 | 2018-05-25 | Charging method, charging device, and remote server performed in a power conversion facility |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110535196A CN110535196A (en) | 2019-12-03 |
| CN110535196B true CN110535196B (en) | 2023-11-07 |
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| CN102355031A (en) * | 2011-10-29 | 2012-02-15 | 重庆大学 | Active equalizing charging method and device for LiFePO4 power battery packs |
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| CN106463978A (en) * | 2014-04-30 | 2017-02-22 | 雷诺股份公司 | Method and device for monitoring the electrical battery of a vehicle |
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