CN114759585A

CN114759585A - Charging method and system

Info

Publication number: CN114759585A
Application number: CN202110023712.5A
Authority: CN
Inventors: 吴军; 董旭锋; 郭海涛
Original assignee: Dupu Shanghai New Energy Technology Co ltd; Dupu Suzhou New Energy Technology Co ltd
Current assignee: Dupu Shanghai New Energy Technology Co ltd; Dupu Suzhou New Energy Technology Co ltd
Priority date: 2021-01-08
Filing date: 2021-01-08
Publication date: 2022-07-15

Abstract

The invention provides a charging method and a charging system, comprising the following steps: responding to the received charging request, and judging whether the current power utilization data of the input power supply is in a wave trough section; if the power consumption data of the input power supply is in a wave valley section, the input power supply is converted into a first direct current which can be input to the vehicle by using a first conversion module, and the vehicle is charged by using the first direct current; if the power consumption of the input power supply is not in the wave trough section, the vehicle is charged by using the energy storage battery module, and the electric quantity in the energy storage battery module is supplemented by the input power supply; the vehicle is charged through the energy storage battery module in the peak section of the power utilization data of the input power supply, so that the problem of single existing charging mode is solved; when one charging mode cannot be replaced by other charging modes due to faults or other reasons, the power supply equipment is more reliable due to the multiple charging modes.

Description

Charging method and system

Technical Field

The invention relates to the technical field of energy utilization, in particular to a charging method and a charging system.

Background

The charging mode of the current equipment to be charged is as follows: the conversion module in the power supply equipment converts an input power supply into a charging parameter meeting the requirement of the equipment to be charged, and the equipment to be charged is charged by utilizing the charging parameter.

Disclosure of Invention

In view of this, embodiments of the present invention provide a charging method and system to solve the problems of low energy utilization efficiency and environmental pollution.

In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:

one aspect of the embodiments of the present invention provides a charging method, including:

receiving a charging request;

responding to the charging request, and judging whether the current power utilization data of the input power supply is in a wave trough section, wherein the wave trough section is used for indicating that the current power utilization data of the input power supply is lower than the power utilization data of other time periods;

if the electricity data of the input power supply is in a wave valley section, the input power supply is converted into a first direct current which can be input to equipment to be charged by using a first conversion module, and the equipment to be charged is charged by using the first direct current;

and if the power consumption of the input power supply is not in a wave trough section, the energy storage battery module is used for charging the equipment to be charged, and the electric quantity in the energy storage battery module is supplemented by the input power supply.

Another aspect of an embodiment of the present invention provides a charging system, including: the device comprises a receiving module, a judging module and a control module;

the receiving module is used for receiving a charging request;

the judging module is used for responding to the charging request and judging whether the current power utilization data of the input power supply is in a wave trough section, and the wave trough section is used for indicating that the current power utilization data of the input power supply is lower than the power utilization data of other time periods;

the control module is used for converting the input power supply into a first direct current which can be input to equipment to be charged by using the first conversion module if the power consumption data of the input power supply are in a wave valley section, and charging the equipment to be charged by using the first direct current; and if the power consumption of the input power supply is not in a wave trough section, the energy storage battery module is used for charging the equipment to be charged, and the electric quantity in the energy storage battery module is supplemented by the input power supply.

Yet another aspect of an embodiment of the present invention provides a storage medium having computer program code stored therein, the computer program code implementing the charging method described above when executed.

According to the technical scheme, the charging request is received; responding to the charging request, and judging whether the current power utilization data of the input power supply is in a wave valley section; if the power consumption data of the input power supply is in the wave valley section, the input power supply is converted into a first direct current which can be input to the equipment to be charged by using a first conversion module, and the equipment to be charged is charged by using the first direct current; if the power consumption of the input power supply is not in the wave trough section, the energy storage battery module is used for charging the equipment to be charged, and the electric quantity in the energy storage battery module is supplemented by the input power supply; the charging method has the advantages that the charging method is characterized in that charging is carried out on the equipment to be charged through the energy storage battery module in the peak section of the power utilization data of the input power supply, and the problem that the existing charging mode is single is solved; when one of the charging modes cannot be performed due to faults or other reasons, other charging modes can work, and the power supply equipment is more reliable due to the multiple charging modes.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a flowchart of a charging method according to an embodiment of the present invention;

fig. 2 is a flowchart of an embodiment of the energy storage battery module for replenishing electric quantity;

fig. 3 is a flowchart of another embodiment of the energy storage battery module for power replenishment;

fig. 4 is a flowchart illustrating a charging method according to another embodiment of the present invention;

fig. 5 is a flowchart of a charging method according to another embodiment of the present invention;

FIG. 6 is a device topology diagram for an AFC;

fig. 7 is a flowchart of a charging method according to an embodiment of the present invention;

FIG. 8 is a flow diagram of one embodiment of replenishing power to a PACK battery PACK;

FIG. 9 is a flow diagram of another embodiment of replenishing power to a PACK battery PACK;

Fig. 10 is a schematic structural diagram of a charging system according to an embodiment of the present invention;

fig. 11 is a schematic structural diagram of another charging system according to an embodiment of the present invention.

Detailed Description

In the prior art, the input power supply has different electricity utilization data in different time periods, and a trough section and a peak section of the electricity utilization data exist. The prior art can know that no matter the wave valley section and the wave peak section of the power consumption data of the input power supply are converted into direct current meeting the requirements of the equipment to be charged through the conversion module when the equipment to be charged is charged, the equipment to be charged is charged by using the direct current, and the problems that the prior charging mode cannot be adjusted according to the power consumption condition of the input power supply, the energy utilization efficiency is low and the environment is not protected exist are solved. The input power supply adopts commercial power as an example for explanation, the peak section of the commercial power consumption is approximately consistent with the time of travel activities of people, most charging requests of charging piles (a power supply device) can appear at the peak section of the commercial power consumption, the existing charging mode can further increase the power consumption of the commercial power at the peak section, the change of the commercial power consumption in one day is increased, the utilization efficiency of the commercial power is reduced, and the environmental protection concept is not met. Meanwhile, the unit price of the commercial power in the wave crest section is higher than that of the wave trough section, and the charging cost of the equipment to be charged in the wave crest section is higher, so that the problem of being uneconomical exists.

The charging method and the charging system provided by the invention can be applied to different charging scenes, such as charging scenes for vehicles or charging electronic equipment (such as mobile phones).

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

In this application, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.

Referring to fig. 1, a flowchart of a charging method according to an embodiment of the present invention is shown, where the charging method according to the embodiment may be executed by a controller built in a power supply device, and the power supply device is a device for charging a device to be charged, for example, an Energy Management System (EMS) of the power supply device. The charging method comprises the following steps:

s101, receiving a charging request.

In this embodiment, the charging request may be a charging request sent by the device to be charged, or may be a charging request obtained by the power supply device according to an input of a human-computer interaction interface, where the human-computer interaction interface is an interface interacting with the power supply device, for example, the human-computer interaction interface is an interface displayed by the power supply device or an interface displayed by an electronic device (e.g., a mobile phone) interacting with the power supply device. The charging request may include, but is not limited to, charging parameters such as a charging amount, a charging voltage, and a charging current required by the device to be charged, and the device to be charged may be a device to be charged using electric energy, such as a new energy vehicle.

And S102, judging whether the current power utilization data of the input power supply is in a wave valley section. If the power consumption data of the input power supply is in the wave valley section, executing the step S103; if the power consumption data of the input power source is not in the wave trough section, step S104 is executed.

In this embodiment, the trough section is used to indicate that the current power consumption data of the input power source is lower than the power consumption data of other time periods, and the power consumption data is a relevant parameter indicating the power consumption condition of the input power source.

One way to determine whether the current power usage data of the input power source is in the valley region is: comparing the current power consumption data of the input power supply with the power consumption data of other time periods, and if the current power consumption data is lower than the power consumption data of other time periods, indicating that the current power consumption data is in a wave trough section; for example, the average power consumption in the current unit time is compared with the average power consumption in other unit times, or the power consumption unit price in the current time is compared with the power consumption unit prices in other time, and the details of this embodiment are not described again.

And S103, charging the equipment to be charged through the first conversion module. For example, the input power source is converted into a first direct current which can be input to the device to be charged by using the first conversion module, and the device to be charged is charged by using the first direct current.

The charging parameters may be different when different devices to be charged are charged, and the charging parameters are used to indicate at least one of voltage and current corresponding to the direct current required by the devices to be charged. In this embodiment, the electrical parameter of the input power source is not necessarily the same as the charging parameter of the device to be charged, and therefore when the device to be charged is charged, the first conversion module converts the electrical parameter of the input power source into the charging parameter that can be matched with the device to be charged, for example, the input power source is converted into a first direct current that can be input to the device to be charged, and the voltage or current of the first direct current is matched with the charging parameter of the device to be charged.

The first conversion module is used as a module for converting the electrical parameter of the input power supply, and the structure of the first conversion module corresponds to the type of the input power supply. For example, if the input power is AC, the first conversion module includes an AC-DC conversion module (AC/DC module); if the electric parameters of the direct current output by the alternating current-direct current conversion module are not matched with the charging parameters of the equipment to be charged, the first conversion module further comprises a direct current conversion module, and the electric parameters of the direct current output by the alternating current-direct current conversion module are matched with the charging parameters of the equipment to be charged through the direct current conversion module. If the input power supply is direct current, the first conversion module is a direct current conversion module, so that the electrical parameters of the direct current output by the input power supply are matched with the charging parameters of the equipment to be charged, and if the input power supply is direct current and the electrical parameters of the direct current output by the input power supply are matched with the charging parameters of the equipment to be charged, the first conversion module can be used as a direct current transmission module to provide the direct current output by the input power supply for the equipment to be charged.

And S104, charging the equipment to be charged by using the energy storage battery module.

In this embodiment, the energy storage battery module is a battery module that both can save the electric energy and can charge to the equipment of waiting to charge, and in order to can save more electric energy, the energy storage battery module can be a battery module of large capacity, and the electric energy that the electric capacity of energy storage battery module is big more like this, and the electric energy that provides just more to the equipment of waiting to charge, for example the energy storage battery module can be PACK battery package of large capacity.

The amount of power in the energy storage battery module may be supplemented by a power source, for example, the input power source for charging the device to be charged. The electrical parameter of the same input power source is not necessarily the same as the energy supplementing electrical parameter of the energy storage battery module, and the energy supplementing electrical parameter is used for indicating at least one of the voltage and the current corresponding to the direct current required by the energy storage battery module. If the electrical parameters of the input power supply are different from the energy supplementing electrical parameters of the energy storage battery module, a second conversion module for converting the electrical parameters of the input power supply into energy supplementing electrical parameters which can be matched with the energy supplementing electrical parameters of the energy storage battery module needs to be arranged, for example, the input power supply is converted into second direct current which can be input into the energy storage battery module, and the voltage or the current of the second direct current is matched with the energy supplementing electrical parameters of the energy storage battery module. The second conversion module may be a partial structure of the first conversion module. For example, the second conversion module may be an ac-dc conversion module; the first conversion module comprises an alternating current-direct current conversion module and a direct current conversion module, and the second conversion module is used as the alternating current-direct current conversion module in the first conversion module. In other embodiments, if the electrical parameter of the input power source is the same as the complementary electrical parameter of the energy storage battery module, the second conversion module may be used as a dc transmission module to provide the dc power output by the input power source to the energy storage battery module. The specific structure of the second conversion module is not limited herein.

The energy storage battery module can be used for replenishing the electric quantity in various embodiments, and two embodiments are listed below. Referring to fig. 2, a flowchart of an embodiment of the energy storage battery module for power replenishment is shown, which includes the following steps:

and S201, acquiring the residual electric quantity of the energy storage battery module.

The residual capacity of the energy storage battery module can be acquired in real time, or the residual capacity of the energy storage battery module can be acquired at regular time according to a set or default time period, or the residual capacity of the energy storage battery module can be acquired at irregular time (i.e. at different time intervals) so as to determine whether to supplement the electric quantity or not through the residual capacity.

And S202, if the residual electric quantity is smaller than the first preset value, the process electric quantity of the energy storage battery module is supplemented through the second conversion module when the power consumption data of the input power supply is in a wave trough section. If the second conversion module is used for converting the input power supply into second direct current which can be input to the energy storage battery module, the second direct current is used for supplementing the electric quantity to the energy storage battery module.

The first preset value is the preset residual electric quantity of the energy storage battery module, which needs to be supplemented with the electric quantity, so that the electric quantity supplementation of the energy storage battery module is triggered when the residual electric quantity of the energy storage battery module is smaller than the first preset value, and the size of the first preset value can be adjusted according to specific conditions.

If the remaining power is less than the first preset value, it is indicated that although the energy storage battery module needs to supplement power, the urgent degree of power supplement in the energy storage battery module is less than the preset degree, the energy storage battery module is in the non-urgent power supplement mode, the stage of power consumption data of the input power can be judged in the non-urgent power supplement mode, if the energy storage battery module is in the peak band, the power supplement is performed on the energy storage battery module after the power consumption data is changed from the peak band to the valley band, thus the embodiment can perform power supplement on the energy storage battery module when the current power consumption data of the input power is in the valley band, the energy storage battery module charges the device to be charged when the power consumption data is in the peak band, the power output of the input power in the peak band is reduced, the change of the power consumption data of the input power in the peak band and the non-peak band is reduced, and the output power of the input power in different time periods is balanced, the energy utilization rate of the input power supply is improved. In other embodiments, the energy storage battery module may be recharged when the current power usage data of the input power source is in a non-peak band.

The power consumption data of the input power source is in a non-wave trough section, the energy storage battery module is used for charging equipment to be charged, the remaining power is possibly too low, if the wave trough section is waited to be used for power supply, the electricity core of the energy storage battery module can be damaged by the excessively low remaining power, the service life of the energy storage battery module is influenced, for solving the problem, please refer to fig. 3, the flow chart of another implementation mode for power supply of the energy storage battery module is shown, and the condition that the remaining power is too low can be prevented from occurring in the energy storage battery module. The embodiment shown in fig. 3 further comprises the following steps compared to fig. 2:

And S203, if the residual electric quantity is smaller than a second preset value, supplementing the process electric quantity of the energy storage battery module through a second conversion module. No matter whether the current power consumption data of the input power supply are in the wave trough section or not, the input power supply is converted into second direct current by the second conversion module, and the second direct current is used for supplementing the electric quantity to the energy storage battery module.

The second preset value is smaller than the first preset value, and for the first preset value, the second preset value is the residual electric quantity of the preset energy storage battery module, but for the first preset value, when the residual electric quantity is smaller than the second preset value, the urgent degree of the electric quantity supplementation in the energy storage battery module is not smaller than the preset degree, the energy storage battery module is in an emergency energy supplementation mode, the electric quantity supplementation needs to be immediately carried out on the energy storage battery module in the emergency energy supplementation mode, therefore, if the residual electric quantity of the energy storage battery module is smaller than the second preset value, no matter whether the current power consumption data of the input power supply is in a wave trough section, the electric quantity supplementation is carried out on the energy storage battery module, the condition that the residual electric quantity of the energy storage battery module is too low is prevented, and the service life of the energy storage battery module is prolonged. The size of the second preset value can be adjusted according to specific situations.

In the embodiment, different charging modes are adopted according to the power consumption data of the input power supply, and the equipment to be charged is charged when the power consumption data of the input power supply is in a wave trough section; when the power utilization data of the input power supply is in a wave peak section, the energy storage battery module can be used for charging the equipment to be charged, so that the problem of single charging mode in the prior art is solved; when one of the charging modes fails to charge due to faults or other reasons, other charging modes can work, and the power supply equipment is more reliable due to the multiple charging modes.

On the other hand, the electric quantity in the energy storage battery module in the non-emergency energy supplementing mode is supplemented by the input power supply when the electricity utilization data are in a trough section or a non-trough section, so that trough storage and peak storage are realized, the energy utilization efficiency is improved, and the energy storage battery module is more environment-friendly.

On the other hand, the output power of the existing power supply device is within a preset range, and the battery capacity of the device to be charged tends to increase gradually, which means that the output power of the power supply device needs to be increased for the devices to be charged to shorten the charging time, but even if the output power of the power supply device is within a preset range, the maximum output power of the power supply device is a fixed value, and the charging time is increased for the devices to be charged with a battery with a large capacity. In order to increase the charging rate and shorten the charging time, a current common method is to replace the power supply equipment with higher output power. As shown in fig. 4, it shows a flowchart of a charging method according to another embodiment of the present invention, which includes the following steps:

And S401, receiving a charging request.

The charging request in this embodiment includes a charging amount, where the charging amount indicates a total amount of electricity to be replenished to the device to be charged. For other descriptions, please refer to step S101 in the above embodiment, which is not described herein.

S402, judging whether the charging amount in the charging request is larger than a preset charging amount. If the charge amount is greater than the preset charge amount, go to step S403; if the charge amount is not greater than the predetermined charge amount, step S404 is executed.

The preset charging amount is a preset threshold value, so that two different charging modes are defined through the preset charging amount: when the charging amount is greater than the preset charging amount, in order to increase the charging rate and shorten the charging time, the device to be charged is charged by the energy storage battery module while the device to be charged is charged by the first conversion module (see step S403); when the charging amount is not larger than the preset charging amount, the step of judging whether the current electricity consumption data of the input power supply is in a wave trough section or not is executed, a specific charging mode is determined according to the electricity consumption condition of the input power supply, and the determined charging mode is to charge the equipment to be charged through the first conversion module or charge the equipment to be charged through the energy storage battery module.

The preset charging amount may be adjusted according to specific situations, and is not limited herein.

And S403, charging the equipment to be charged through the first conversion module and charging the equipment to be charged through the energy storage battery module.

For the step of charging the device to be charged by using the first conversion module, the input power is converted into a first direct current by using the first conversion module, and the device to be charged is charged by using the first direct current, please refer to step S103 in the foregoing embodiment, which is not described herein again. Similarly, please refer to step S104 in the above embodiment for charging the device to be charged by using the energy storage battery module, which is not described herein again, and the first conversion module and the energy storage battery module are used to charge the device to be charged simultaneously to improve the charging efficiency, thereby shortening the charging time.

S404, judging whether the current power consumption data of the input power supply is in a wave valley section, and executing the step S405 if the current power consumption data of the input power supply is in the wave valley section; if the power consumption of the input power is not in the wave trough section, step S406 is executed.

S405, the equipment to be charged is charged through the first conversion module, namely the first conversion module is used for converting the input power supply into a first direct current which can be input into the equipment to be charged, and the first direct current is used for charging the equipment to be charged.

And S406, charging the device to be charged by using the energy storage battery module. The electric quantity in the energy storage battery module is supplemented by the input power supply.

For the description of the execution process of steps S404-S406, refer to the description of steps S102-S104 in the above embodiment, which is not repeated herein.

And S407, stopping charging the device to be charged when the charging ending request is received or the electric quantity of the device to be charged reaches the preset battery electric quantity.

The charging ending request may be a request generated in response to a specific operation performed by an owner of the device to be charged on a human-computer interaction interface of the charging device, for example, clicking a "charging ending" button on the interface; the charging interface may be a part (for example, a charging gun) of the power supply device for charging the device to be charged, and the charging interface may be a part (for example, a charging interface) of the device to be charged.

The preset battery electric quantity can be the electric quantity set by default in the system, or the electric quantity input through a human interaction interface, and the value of the preset battery electric quantity is not limited in the embodiment.

In the embodiment, a matched charging mode is selected according to the size of the charging amount in the charging request, for example, when the charging amount is greater than a preset charging amount, the device to be charged is charged through the first conversion module and the energy storage battery module at the same time, although the output powers of the first conversion module and the energy storage battery module are limited, the output powers of the two modules can be added together through a combined mode of the first conversion module and the energy storage battery module, so that the overall output power is increased, the electric quantity provided to the device to be charged per unit time is also increased, and thus, the charging efficiency is improved and the charging time is shortened.

Referring to fig. 5, a flowchart of a charging method according to another embodiment of the present invention is shown, where compared with the charging method in fig. 1, the present embodiment further includes the following steps:

and S105, supplementing the electric quantity of the energy storage battery module through the second conversion module, namely converting the input power supply into second direct current which can be input into the energy storage battery module by using the second conversion module, and supplementing the electric quantity of the energy storage battery module by using the second direct current.

In this step, the electric quantity of the energy storage battery module is supplemented, and one electric quantity supplementing manner of this step may refer to the description of the energy storage battery module for supplementing the electric quantity in step S104 of the above embodiment, which is not described herein again.

The other electric quantity supplementing mode is as follows: selecting a matched electric quantity supplementing mode according to the residual electric quantity of the energy storage battery module, and if the residual electric quantity is smaller than a second preset value, converting the input power supply into second direct current by using a second conversion module without considering whether the power consumption data of the input power supply is in a trough section or a non-peak section or not, as shown in the flowchart of fig. 3; if the remaining power is greater than the second preset value but less than the first preset value, the second conversion module may be triggered to convert the input power into the second direct current when the power consumption data of the input power is in a non-peak band or a valley band.

The other electric quantity supplementing mode is as follows: the process of supplementing the electric quantity to the energy storage battery module can be performed simultaneously with the process of charging the device to be charged by the energy storage battery module.

If the charging amount in the charging request is not larger than the preset charging amount, the second conversion module is used for converting the input power supply into second direct current which can be input into the energy storage battery module in the process of charging the equipment to be charged by using the first direct current. If the charging amount in the charging request is larger than the preset charging amount, in order to ensure the charging rate of the equipment to be charged, in the process of charging the equipment to be charged by using the first direct current, the energy storage battery module is not supplemented with electric quantity.

Fig. 5 shows only one execution sequence of step S105, and the energy storage battery module starts to be recharged after step S103 or step S104. In other embodiments, the execution sequence between step 105 and other steps can be adjusted as needed, and step 105 is not dependent on steps S101-S104. The execution order between step S105 and other steps is not limited herein.

Through above-mentioned technical scheme, use the second conversion module to convert input power into the second direct current that can input to energy storage battery module, use the second direct current to carry out the electric quantity to energy storage battery module and supply to can utilize input power to carry out the electric quantity to energy storage battery module and supply to also can use input power to treat charging apparatus and charge, improve the utilization to input power.

For convenience of understanding, the charging method according to the present invention is described below with reference to a specific application scenario, where in the application scenario, the power supply device is a mobile energy storage charging pile (hereinafter, referred to as "AFC"), and the AFC is a working process of charging a new energy vehicle (hereinafter, referred to as "vehicle") serving as a device to be charged.

Referring to fig. 6, a device topology of an AFC is shown, in which the commercial power (alternating current) corresponds to the input power in the above embodiment; the alternating-direct current conversion module (hereinafter referred to as AC/DC module) corresponds to the second conversion module of the above embodiment; the AC/DC module and the DC conversion module (hereinafter referred to as DC/DC module for short) correspond to the first conversion module of the above embodiment, and the second conversion module is an AC/DC module in the first conversion module; the PACK battery PACK corresponds to the energy storage battery module of the above embodiment. The AFC also includes a control module, which may be a battery management unit (EMS), also known as a main control board.

Referring to fig. 7, a flowchart of a charging method according to an embodiment of the present invention is shown, where the charging method is built in an AFC EMS, and the charging method includes the following steps:

s701 receives a charge request of the vehicle.

The charge request includes a charge amount indicating that the vehicle needs to be replenished.

S702, determining whether a charging amount in the charging request is greater than a preset charging amount. If the charging amount is larger than the preset charging amount, executing step S703 and entering a high-power charging mode; if the charged amount is not greater than the predetermined charged amount, step S704 is executed. Please refer to step S402 for the description of the preset charging amount, which is not repeated herein.

And S703, charging the vehicle through the AC/DC module and the DC/DC module, and simultaneously charging the vehicle by using the PACK battery PACK.

The vehicle is charged through the AC/DC module and the DC/DC module, namely the AC/DC module and the DC/DC module are used for converting commercial power into first direct current, and the vehicle is charged through the first direct current. The commercial power is firstly converted into direct current through the AC/DC module, and the voltage or the current of the direct current output by the AC/DC module is adjusted through the DC/DC module to obtain a first direct current with the electric parameters which can be input to the vehicle matched with the charging parameters of the equipment to be charged.

S704, judging whether the current rate of the commercial power is in a wave trough section.

The rate of the utility power indicates that the unit price of the utility power can be obtained from the cloud, and the rate of the utility power is a feasible way of the electricity consumption data in the above embodiment. And if the current rate of the commercial power is lower than the rates of other time periods, the current rate of the commercial power is in a wave valley period. If the utility power rate is in the valley section, executing step S705; if the utility power rate is not in the valley, step S706 is executed.

And S705, charging the vehicle through the AC/DC module and the DC/DC module, namely converting the commercial power into a first direct current which can be input to the vehicle and has an electric parameter matched with a charging parameter of the vehicle by using the AC/DC module and the DC/DC module, and charging the vehicle by using the first direct current.

And S706, charging the vehicle by using the PACK battery PACK. The electric quantity in the PACK battery PACK is supplemented by the commercial power, and the process of supplementing the electric quantity to the PACK battery PACK by the commercial power is described in the following.

And S707, stopping charging the vehicle when the charging ending request is received or the electric quantity of the vehicle reaches the preset battery electric quantity.

In the embodiment, different charging modes are adopted according to the power utilization condition of commercial power, and the commercial power is used for charging the vehicle through the AC/DC module and the DC/DC module at the trough section; the vehicle is charged through the PACK battery PACK in the peak section, so that the problem of single charging mode in the prior art is solved; when one of the charging modes cannot be performed due to faults or other reasons, other charging modes can work, and the AFC is more reliable due to the multiple charging modes.

On the other hand, the conventional AFC increases the number of AC/DC modules to increase the charging power of the charging pile, but the AC/DC modules have a large volume, and the increase of the number of AC/DC modules also increases the volume of the AFC. In the embodiment, the mode that the AC/DC module is combined with the large-capacity PACK battery PACK is adopted, the output power of the PACK battery PACK is high, but the volume of the PACK battery PACK is smaller than that of the AC/DC module, the AFC volume is reduced while the charging function of the AFC is increased through the PACK battery PACK, and the occupation area of the AFC is reduced.

Referring to FIG. 8, a flow chart of one embodiment of recharging a PACK battery PACK is shown, comprising the steps of:

s801, obtaining the residual capacity (SOC) Of the PACK battery PACK.

S802, if the residual electric quantity of the PACK battery PACK is lower than a first preset value, judging whether the current rate of the commercial power is in a wave trough section or not according to the rate of the commercial power acquired from the cloud.

If the charge rate of the commercial power is in the wave trough section, executing step S803; if the utility power rate is not in the valley, step S804 is executed. If the residual electric quantity of the PACK battery PACK is not lower than the first preset value, the PACK battery PACK does not need to be supplemented with electric quantity.

And S803, supplementing the electric quantity of the PACK battery PACK through commercial power.

And converting the commercial power into second direct current which can be input into the PACK battery PACK by using the AC/DC module, and supplementing the electric quantity of the PACK battery PACK by using the second direct current.

S804, judging whether the residual electric quantity of the PACK battery PACK is lower than a second preset value or not.

Wherein the second preset value is less than the first preset value. For the description of the first preset value and the second preset value, refer to the description of step S202 and step S203, which are not repeated herein. If the remaining power is lower than the second preset value, the PACK battery PACK is in the emergency energy supplement mode, and step S803 is executed to immediately supplement the power to the PACK battery PACK; if the remaining power is not lower than the second predetermined value, go to step S805.

And S805, the electric quantity of the PACK battery PACK is not supplemented, the charge rate of the commercial power reaches the valley section, and the electric quantity of the PACK battery PACK is supplemented in the valley section.

Referring to FIG. 9, a flow chart of another embodiment of recharging a PACK battery PACK is shown, comprising the steps of:

and S901, obtaining the residual electric quantity of the PACK battery PACK.

And S902, if the residual electric quantity of the PACK battery PACK is lower than a second preset value, supplementing the electric quantity of the PACK battery PACK through commercial power. If the AC/DC module is used for converting the commercial power into second direct current which can be input into the PACK battery PACK, the second direct current is used for supplementing the electric quantity of the PACK battery PACK.

And S903, if the residual electric quantity of the PACK battery PACK is not lower than the second preset value and lower than the first preset value, judging whether the current rate of the commercial power is in a wave trough section or not according to the rate of the commercial power acquired from the cloud. If the rate of the commercial power is in the wave trough section, executing step S904; if the charge rate of the utility power is not in the wave trough, step S905 is executed. If the residual electric quantity of the PACK battery PACK is not lower than the first preset value, the PACK battery PACK does not need to be supplemented with electric quantity.

And S904, supplementing the electric quantity of the PACK battery PACK through commercial power.

And S905, not supplementing the electric quantity to the PACK battery PACK, waiting for the charge rate of the commercial power to reach a trough section, and supplementing the electric quantity to the PACK battery PACK at the trough section.

Above-mentioned two embodiments are through setting up the first default and the second default of variation in size and the surplus electric quantity of PACK battery package and comparing, are less than the second default when the PACK battery package, and whether the current power consumption data of input power is in the wave trough section and all carry out the electric quantity to the energy storage battery module immediately and supply, prevent that the too low condition of surplus electric quantity from appearing in the energy storage battery module, prolong the life of energy storage battery module.

On the other hand, in the non-emergency energy supplementing mode, the electric quantity in the PACK battery PACK is supplemented by the input power supply when the electricity utilization data is in the wave trough section, so that the trough storage and peak storage are realized, the energy utilization efficiency is improved, and the PACK battery PACK is more environment-friendly.

Based on the charging method disclosed in the embodiment of the present invention, an embodiment of the present invention also discloses a charging system correspondingly, please refer to fig. 10, which shows a structural diagram of the charging system, including: a receiving module 101, a judging module 102 and a control module 103.

The receiving module 101 is configured to receive a charging request. Please refer to the step S101 of the above method embodiment for the description of the working process of the receiving module 101, which is not described herein again.

The determining module 102 is configured to respond to the charging request, and determine whether the current power consumption data of the input power source is in a valley section, where the valley section is used to indicate that the current power consumption data of the input power source is lower than the power consumption data of other time periods.

The control module 103 is configured to, if the power consumption data of the input power source is in a valley section, convert the input power source into a first direct current capable of being input to the device to be charged by using the first conversion module, and charge the device to be charged by using the first direct current; and if the power consumption of the input power supply is not in the wave trough section, the energy storage battery module is used for charging the equipment to be charged, and the power consumption in the energy storage battery module is supplemented by the input power supply.

Please refer to the description of steps S102-S104 in the above method embodiment for the description of the working process of the determining module 102 and the controlling module 103, which is not repeated herein.

In the embodiment, different charging modes are adopted according to the power consumption data of the input power supply, and the equipment to be charged is charged when the power consumption data of the input power supply is in a wave trough section; when the power consumption data of the input power supply is in a wave peak section, the energy storage battery module can be used for charging the equipment to be charged, so that the problem of single charging mode in the prior art is solved; when one of the charging modes cannot be charged due to faults or other reasons, other charging modes can work, and the power supply equipment is more reliable due to the multiple charging modes.

Referring to fig. 11, it shows a structural diagram of a charging system according to another embodiment of the present invention, which further includes an energy storage capacity replenishing module 104, compared to fig. 10.

The energy storage electric quantity supplementing module 104 is used for converting the input power supply into second direct current which can be input to the energy storage battery module by using a second conversion module; and supplementing the electric quantity of the energy storage battery module by using the second direct current. The energy storage and power supplement module 104 can supplement power to the energy storage battery module through different work flows.

Please refer to the description of the steps S201 to S202 in fig. 2 of the embodiment of the method or the description of the steps S201 to S203 in fig. 3 of the embodiment of the method for the working process of the energy storage capacity replenishment module 104, which is not described herein again.

This embodiment uses the second conversion module to convert input power into the second direct current that can input to energy storage battery module, uses the second direct current to carry out the electric quantity to energy storage battery module and supplements to can utilize input power to carry out the electric quantity to energy storage battery module and supply also can use input power to treat charging apparatus and charge, improve the utilization to input power. On the other hand, the electric quantity in the energy storage battery module in the non-emergency energy supplementing mode is supplemented by the input power supply when the electricity utilization data are in a trough section or a non-trough section, so that trough storage and peak storage are realized, the energy utilization efficiency is improved, and the energy storage battery module is more environment-friendly.

On the other hand, the output power of the existing power supply device is within a preset range, and the battery capacity of the device to be charged tends to increase gradually, which means that the output power of the power supply device needs to be increased for the devices to be charged to shorten the charging time, but even if the output power of the power supply device is within a preset range, the maximum output power of the power supply device is a fixed value, and the charging time is increased for the devices to be charged with a battery with a large capacity.

In order to increase the charging rate and shorten the charging time, a current common method is to replace the power supply device with higher output power. The structure of the charging system is the same as that of the above-described system embodiment, as shown in fig. 11. But the department module adds new functionality.

The determining module 102 is further configured to respond to the charging request, determine whether a charging amount in the charging request is greater than a preset charging amount, and if the charging amount is not greater than the preset charging amount, execute a step of determining whether current power consumption data of the input power source is in a valley section.

The control module 103 is further configured to convert the input power into a first direct current by using the first conversion module if the charging amount is greater than the preset charging amount, charge the device to be charged by using the first direct current, and charge the device to be charged by using the energy storage battery module. Please refer to the description of steps S402-S404 in the method embodiment for the description of the working process of the new function of the determining module 102 and the controlling module 103, which is not described herein again.

The energy storage electric quantity supplementing module 104 may supplement the electric quantity of the energy storage battery module at the same time as the energy storage battery module charges the device to be charged. The specific working process is as follows: if the charging amount in the charging request is not larger than the preset charging amount, in the process of charging the equipment to be charged by using the first direct current, converting the input power supply into a second direct current which can be input to the energy storage battery module by using a second conversion module; and supplementing the electric quantity of the energy storage battery module by using the second direct current. If the charging amount in the charging request is larger than the preset charging amount, in order to ensure the charging rate of the equipment to be charged, in the process of charging the equipment to be charged by using the first direct current, the energy storage battery module is not supplemented with electric quantity.

Please refer to the step S105 of the method embodiment for the description of the operation process of the new function added by the energy storage capacity supplementing module 104, which is not described herein again.

The present embodiment also provides a storage medium, in which computer program codes are stored, and when executed, the computer program codes implement the charging method.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments may be referred to each other, and the contents among the embodiments may be combined with or replaced with each other, and each embodiment focuses on the differences from other embodiments. In particular, the system or system embodiments, which are substantially similar to the method embodiments, are described in a relatively simple manner, and reference may be made to some descriptions of the method embodiments for relevant points. The above-described system and system embodiments are only illustrative, wherein the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. One of ordinary skill in the art can understand and implement without inventive effort.

Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the technical solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method of charging, comprising:

receiving a charging request;

2. The method of claim 1, further comprising: responding to the charging request, judging whether a charging amount in the charging request is larger than a preset charging amount, and if the charging amount is not larger than the preset charging amount, executing the step of judging whether current electricity utilization data of the input power supply is in a wave trough section;

if the charge amount is greater than the preset charge amount, use first conversion module will input power supply converts to first direct current, uses first direct current charges and uses the charging equipment is treated to the energy storage battery module.

3. The method of claim 1, further comprising: converting the input power supply into second direct current which can be input to the energy storage battery module by using a second conversion module;

and supplementing the electric quantity of the energy storage battery module by using the second direct current.

4. The method of claim 3, wherein said converting the input power source into a second direct current that can be input to the energy storage battery module using a second conversion module comprises:

acquiring the residual electric quantity of the energy storage battery module;

if the residual electric quantity is smaller than a first preset value, the second conversion module is used for converting the input power supply into second direct current which can be input to the energy storage battery module when the electricity utilization data of the input power supply is in a wave trough section;

and if the residual electric quantity is smaller than a second preset value, converting the input power supply into the second direct current by using the second conversion module, wherein the second preset value is smaller than the first preset value.

5. The method of claim 3, wherein said converting the input power source into a second direct current that can be input to the energy storage battery module using a second conversion module comprises: if the charging amount in the charging request is not larger than the preset charging amount, a second conversion module is used for converting the input power supply into a second direct current which can be input into the energy storage battery module in the process of charging the equipment to be charged by using the first direct current.

6. An electrical charging system, comprising: the device comprises a receiving module, a judging module and a control module;

the receiving module is used for receiving a charging request;

7. The system of claim 6, wherein the determining module is further configured to determine, in response to the charging request, whether a charging amount in the charging request is greater than a preset charging amount, and if the charging amount is not greater than the preset charging amount, perform the step of determining whether current power consumption data of the input power source is in a valley section;

The control module is further used for if the charging amount is larger than the preset charging amount, using the first conversion module to convert the input power supply into the first direct current, using the first direct current to charge the equipment to be charged and using the energy storage battery module to charge the equipment to be charged.

8. The system of claim 6, further comprising: the energy storage electric quantity supplementing module is used for converting the input power supply into second direct current which can be input to the energy storage battery module by using a second conversion module; and supplementing the electric quantity of the energy storage battery module by using the second direct current.

9. The system of claim 8, wherein the energy storage charge level replenishment module is specifically configured to:

acquiring the residual electric quantity of the energy storage battery module;

if the residual electric quantity is smaller than a second preset value, converting the input power supply into the second direct current by using the second conversion module, wherein the second preset value is smaller than the first preset value;

10. The system of claim 8, wherein the energy storage charge amount supplementing module is specifically configured to:

if the charging amount in the charging request is not larger than a preset charging amount, a second conversion module is used for converting the input power supply into second direct current which can be input into the energy storage battery module in the process of charging the equipment to be charged by using the first direct current;