CN117841755A

CN117841755A - Power control method, power control device and storage medium for charging system

Info

Publication number: CN117841755A
Application number: CN202311809988.1A
Authority: CN
Inventors: 林义平
Original assignee: Shenzhen Xiaotu New Energy Technology Holdings Co ltd
Current assignee: Shenzhen Xiaotu New Energy Technology Holdings Co ltd
Priority date: 2023-12-26
Filing date: 2023-12-26
Publication date: 2024-04-09

Abstract

The invention discloses a power control method, a power control device and a storage medium of a charging system, wherein the method comprises the following steps: when a charging system receives a charging order, determining the required power of the charging system according to the single pile power corresponding to the charging order and the current output power of the charging system; determining the total power to be adjusted according to the required power and the rated power of the charging system; determining a target charging pile and a sub-power adjustment quantity corresponding to the target charging pile according to the charging parameters of each charging pile in a charging state, wherein the sum of the sub-power adjustment quantity is larger than or equal to the total power to be adjusted; and reducing the output power of the target charging pile according to the sub-power adjustment quantity. According to the invention, the target charging pile needing to reduce the charging power is selected from the charging piles, so that the output power of the target charging pile is reduced, and all the charging piles can be ensured to be charged normally.

Description

Power control method, power control device and storage medium for charging system

Technical Field

The present invention relates to the field of new energy, and in particular, to a power control method, a power control device, and a storage medium for a charging system.

Background

The popularity of electric vehicles has increased in recent years, and the popularity of electric vehicles has also driven a great deal of charging demands.

In the construction of a vehicle charging station, the power rating of the selected transformers is usually greater than the sum of the charging powers of the individual charging piles. However, in the actual charging process, the situation that the charging piles are fully occupied is usually rarely generated in the charging station, at this time, when a transformer with larger power is selected, the situation of power redundancy usually exists, and meanwhile, the requirement of the high-power transformer on cables is higher, so that the construction cost of the charging station is higher.

The foregoing is provided merely for the purpose of facilitating understanding of the technical solutions of the present invention and is not intended to represent an admission that the foregoing is prior art.

Disclosure of Invention

The invention mainly aims to provide a power control method, a power control device and a storage medium of a charging system, which solve the problem of high construction cost of a charging station in the prior art.

To achieve the above object, the present invention provides a power control method of a charging system, the method comprising the steps of:

When a charging system receives a charging order, determining the required power of the charging system according to the single pile power corresponding to the charging order and the current output power of the charging system;

determining the total power to be adjusted according to the required power and the rated power of the charging system;

determining a target charging pile and a sub-power adjustment quantity corresponding to the target charging pile according to the charging parameters of each charging pile in a charging state, wherein the sum of the sub-power adjustment quantity is larger than or equal to the total power to be adjusted;

and reducing the output power of the target charging pile according to the sub-power adjustment quantity.

Optionally, before the step of determining the total amount of power to be regulated according to the required power and the rated power of the charging system, the method further comprises

When the charging order is received, determining the number of charging piles in a charging state;

when the number of charging piles is greater than or equal to the number of preset charging piles, determining the required power according to the single pile power corresponding to the charging order and the output power corresponding to the preset charging piles;

and executing the step of determining the total power to be regulated according to the required power and the rated power of the charging system.

Optionally, when the total power to be adjusted is greater than zero and less than the normal power of the charging piles, and the number of the target charging piles is single, the step of determining the target charging pile according to the charging parameters of each charging pile in the charging state, and the sub-power adjustment amount corresponding to the target charging pile includes:

selecting a charging pile with the largest charging duration as the target charging pile according to the charging duration of each charging pile corresponding to the charging parameter, and taking the total power to be adjusted as the sub-power adjustment quantity; or alternatively

Determining order priorities corresponding to the charging piles corresponding to the charging parameters, taking the charging pile with the lowest order priority as the target charging pile, and taking the total power to be adjusted as the sub-power adjustment quantity; or alternatively

And determining the residual capacity information of the target vehicle corresponding to each charging pile corresponding to the charging parameters, selecting the target charging pile according to the residual capacity information, and taking the total power to be adjusted as the sub-power adjustment quantity.

Optionally, when the number of the target charging piles is two, the step of determining the target charging pile according to the charging parameters of each charging pile in the charging state, and the sub-power adjustment amount corresponding to the target charging pile includes:

Determining the charging pile which corresponds to the charging parameter and operates based on normal power;

selecting two charging piles with the largest charging time length from the charging piles operated according to the normal power as the target charging piles, and taking half of the normal power as the sub-power adjustment quantity; or alternatively

Selecting a vehicle with the maximum residual electric quantity from the charging piles operated according to the normal power, taking the corresponding two charging piles as the target charging piles, and taking half of the normal power as the sub-power adjustment quantity; or alternatively

And selecting two charging piles with the smallest charging priority from the charging piles operating according to the normal power as the target charging piles, and taking half of the normal power as the sub-power adjustment quantity.

Optionally, after the step of determining the charging pile corresponding to the charging parameter and operating based on normal power, the method further includes:

selecting a charging pile with the largest charging duration from the charging piles operated according to the normal power, taking the charging pile corresponding to the charging order as the target charging pile, and taking half of the normal power as the sub-power adjustment quantity; or alternatively

Selecting a charging pile corresponding to a vehicle with the largest residual quantity from the charging piles operated according to the normal power, taking the charging pile corresponding to the charging order as the target charging pile, and taking half of the normal power as the sub-power adjustment quantity; or alternatively

And selecting a charging pile with the smallest charging priority from the charging piles operated according to the normal power, taking the charging pile corresponding to the charging order as the target charging pile, and taking half of the normal power as the sub-power adjustment quantity.

Optionally, after the step of determining the total amount of power to be adjusted according to the required power and the rated power of the charging system, the method further includes:

and when the total power to be adjusted is smaller than or equal to zero, controlling the charging pile corresponding to the charging order to charge based on the single pile power.

Optionally, after the step of reducing the output power of the target charging pile according to the sub-power adjustment amount, the method further includes:

when the target charging piles are detected to finish the charging order, and the number of the target charging piles is two, the charging power of the other target charging pile is adjusted to be normal power; or alternatively

When the target charging piles are detected to finish the charging order, and the number of the target charging piles is more than two, the charging power of the target charging piles in a working state is increased according to the residual power of the charging system; or alternatively

And when detecting that the charging piles except the target charging pile complete the charging order, increasing the charging power of the target charging pile according to the residual power of the charging system.

Optionally, before the step of determining the required power of the charging system according to the mono-pile power corresponding to the charging order and the current output power of the charging system when the charging system receives the charging order, the method further includes:

determining the charging voltage of the charging pile in a charging state and a floating proportion corresponding to the charging voltage;

when the floating proportion is larger than a preset proportion, outputting a voltage adjustment page;

responding to the operation information received by the voltage adjustment interface, at least executing the following operations:

stopping the running state of the charging pile with the floating proportion being larger than the preset proportion; or alternatively

And reducing the preset proportion, and maintaining the running state of the charging pile when the floating proportion is smaller than the reduced preset proportion.

In addition, in order to achieve the above object, the present invention also provides a power control device of a charging system, the power control device of a charging system including a memory, a processor, and a power control program of a charging system stored on the memory and executable on the processor, the power control program of a charging system implementing the steps of the power control method of a charging system as described above when executed by the processor.

In addition, in order to achieve the above object, the present invention also provides a computer-readable storage medium having stored thereon a power control program of a charging system, which when executed by a processor, implements the steps of the power control method of a charging system as described above.

The embodiment of the invention provides a power control method, a power control device and a storage medium of a charging system, wherein when the charging system receives a new charging order, the charging system can determine the required power of the charging system according to the single pile power corresponding to the charging order and the current output power of the charging system, then determine the total power to be adjusted according to the required power and the rated power of the charging system, then select one target charging pile from charging piles at a charging pile table, and the sub-power adjustment quantity of the target charging pile, and finally reduce the output power of the target charging pile according to the sub-power adjustment quantity. Based on the above, it can be seen that when the charging system receives a new charging order, the required power parameter and the rated power parameter of the current charging system can be known in real time, so that the output power of the target charging pile can be selected and adjusted according to the two parameters, the charging system can be ensured to charge the vehicle in the transformer with smaller rated power, the construction cost of the charging station is greatly reduced, and meanwhile, the charging safety of the charging station is improved when the transformer with smaller power is used for charging.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention. In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.

FIG. 1 is a flow chart of a power control method of a charging system according to a first embodiment of the present invention;

FIG. 2 is a flow chart of a second embodiment of a power control method of the charging system of the present invention;

fig. 3 is a schematic diagram of a terminal hardware structure of various embodiments of a power control method of the charging system of the present invention.

The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

In order to solve the above-mentioned drawbacks, an embodiment of the present invention provides a power control method of a charging system, which mainly includes the following steps:

According to the invention, when the charging system receives a new charging order, the required power parameter and the rated power parameter of the current charging system can be obtained in real time, so that the output power of the target charging pile can be selected and regulated according to the required power parameter and the rated power parameter, the charging system can be ensured to charge a vehicle in a transformer with smaller rated power, the construction cost of a charging station is greatly reduced, and meanwhile, the charging safety of the charging station is improved when the transformer with smaller power is used for charging.

In order to better understand the above technical solution, exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

First embodiment

In this embodiment, the charging stations include cell charging stations, high-speed service area charging stations, and other vehicle charging stations. In the actual charging process, the charging peak period is usually concentrated on friday evenings and sunday evenings, and the charging pile is in a full state. In other periods, the situation that the charging piles are full is seldom occurred in the charging area, and in order to reduce the construction cost of the charging station, a transformer with rated power smaller than the sum of the charging power of each charging pile is usually selected. When the charging system is in a charging peak period, the power control method of the charging system is provided for guaranteeing the charging safety, and the charging parameters of each charging pile are obtained, so that the charging power of the target charging pile is selected and reduced, and further, all vehicles can be guaranteed to be charged normally, meanwhile, the transformer is prevented from being in an overload state, and the charging safety is improved.

Based on this, referring to fig. 1, the power control method of the charging system of the present invention includes the following steps:

step S10, when a charging system receives a charging order, determining the required power of the charging system according to the single pile power corresponding to the charging order and the current output power of the charging system;

in this embodiment, different electric automobile models correspond to different charging powers, when charging, an electric automobile owner can manually select the charging power of the charging pile, and when a user does not manually select the output power of the charging pile, the output power of the charging pile defaults to the maximum output power of a single charging pile. The single pile power refers to the output power of the charging pile when the user performs charging. The current output power refers to the sum of the output powers of other charging piles in a charged state, except for the new charging order currently received.

As an optional implementation manner, in order to ensure the safety and stability of the charging process, when the charging order is generated, the charging system can directly calculate the required power of the charging system according to the mono-pile power corresponding to the charging order and the current output power of the charging system, so as to determine whether to adjust the charging power according to the required power. For example, the rated power of the charging system is 50 kw, the current charging power is 35 kw, the single pile power corresponding to the new charging order is 7 kw, and the corresponding required power is 42 kw, and the output power of the charging pile is not required to be adjusted at this time.

In another optional implementation manner of determining the required power of the charging system, when the charging order is received, the number of charging piles in a charging state may be determined first, then information of the number of charging piles and the preset number of charging piles is judged, when the number of charging piles is greater than or equal to the preset number of charging piles, it is indicated that the power of the charging piles needs to be adjusted, and at this time, the required power is determined according to the single pile power corresponding to the charging order and the output power corresponding to the preset number of charging piles. It should be noted that, the preset number of charging piles is in a full power charging state by default, for example, the rated power is 50 kw, the maximum power of a single charging pile is 7 kw, when the preset number of charging piles is 7, the output power of the charging system is close to the rated power, when a new charging order occurs, the number of charging piles in the current charging state is 7, at this time, the rated power cannot meet the maximum charging power of the single pile, and the power of the charging piles needs to be adjusted.

Step S20, determining the total power to be adjusted according to the required power and the rated power of the charging system;

in this embodiment, the rated power of the charging system corresponds to the rated power of the transformer used in the cell charging station, the high-speed service area charging station, and other vehicle charging stations. The total amount of power to be adjusted refers to the total amount of power exceeding the rated power.

In the process of determining the total power to be adjusted, the required power and the rated power can be judged first, and when the required power is larger than the rated power, the difference between the required power and the rated power is used as the total power to be adjusted. In addition, the judging process can be omitted, the difference between the required power and the rated power is directly calculated, the difference is further used as the total power to be adjusted, and based on the difference, the complexity of the system is reduced. When the total power to be adjusted is less than or equal to zero, the output power of the charging pile is not required to be adjusted currently.

For example, the required power is 56 kw, the rated power is 50 kw, and the former is subtracted from the latter to obtain the total power to be adjusted to be 6 kw, that is, the power of one or more charging piles needs to be reduced, so that the reduced power is larger than the total power to be adjusted, and the stability and safety of charging are ensured.

In the process of selecting the transformer with the rated power, as an optional implementation manner, before the charging station is constructed, surrounding building information of the charging station, charging user type, related information of the electric automobile and the like recorded in an information base can be acquired, and then the average charging power of the charging station is calculated based on the surrounding building information, the charging user type, the related information of the electric automobile and the like, so that the transformer which is most suitable for construction cost is selected according to the average charging power. Specifically, when the charging station is a cell charging station, at this time, according to the type and number of electric vehicles pre-stored in the library and recorded in the cell in advance by a worker, average charging data of electric car users in the cell can be calculated through a relevant calculation model, and then an appropriate transformer can be selected according to the average charging data. For example, in the calculated analog data, the average output power of the charging system of the charging station is between 40 kilowatts and 50 kilowatts, and the transformer can be 50 kilowatts at this time, and if the average output power is between 65 kilowatts and 75 kilowatts, the transformer can be 80 kilowatts at this time. Based on this, through selecting suitable transformer, reduce the cost of selecting the cable when charging station construction, reduce the cost of charging station simultaneously.

It should be noted that, in order to ensure the charging experience of the user in the charging process, at least a plurality of charging pile foundations operate at normal charging power, and the rated voltage of the transformer is at least more than 70% of the maximum output power of the charging system. For example, the maximum output power of the charging system is 70 kilowatt-hours, the rated voltage of the transformer is at least 50 kilowatts, and the charging power is not selected to be too small because the average charging power is small. The normal power of the charging pile refers to the maximum charging power in normal operation, the current output power of the charging system is smaller than or equal to the rated power before a new charging order is received, and the single pile power of the charging order is also smaller than or equal to the normal power of the charging pile, so that the total power to be adjusted is always smaller than or equal to the normal power of the charging pile.

Step S30, determining a target charging pile and a sub-power adjustment quantity corresponding to the target charging pile according to the charging parameters of each charging pile in a charging state, wherein the sum of the sub-power adjustment quantity is greater than or equal to the total power to be adjusted;

in this embodiment, the number of the target charging piles, that is, the charging piles whose output power needs to be adjusted, may be one or more. The charging parameters may include a charging duration of each charging pile, a charging priority of the charging pile, and remaining power information of the vehicle, so that a target charging pile may be selected from a plurality of charging piles operating at normal power according to the charging duration, the charging priority, or the remaining power information of the vehicle. The sub-power adjustment amount is used to adjust the charging power of the single or multiple charging piles.

As an optional implementation manner, when the total power to be adjusted is less than or equal to zero, it is indicated that the current required power of the charging system does not exceed the rated power, and at this time, the charging pile corresponding to the charging order may be controlled to perform normal charging processing based on the single pile power of the charging order.

In another alternative embodiment, when the total power to be adjusted is greater than zero, the number of target charging piles to be adjusted is divided into multiple cases, and when the total power to be adjusted is smaller than the normal power of the charging piles, for example, the total power to be adjusted is 4 kw, the normal charging power is 7 kw, at this time, the charging power of the charging piles is considered to be 4 kw to exceed the current rated power, the charging power of the charging piles needs to be reduced by 4 kw, at this time, the charging piles with 7 kw power can be reduced to 3 kw, the charging piles with 7 kw power can be reduced to 5 kw, or the charging piles with seven kw power can be reduced to 6 kw, and other reducing modes are not described in any more.

When the number of the target charging piles is single and the total power to be adjusted is smaller than the normal power of the charging piles, the charging pile with the largest charging duration can be selected as the target charging pile according to the charging duration of each charging pile corresponding to the charging parameter, and the total power to be adjusted is taken as the sub-power adjustment amount. Besides the charging duration, a target charging pile can be selected directly according to the remaining capacity information of the vehicle, namely, the remaining capacity information of the target vehicle corresponding to each charging pile corresponding to the charging parameter is determined, the target charging pile is selected according to the remaining capacity information, and the total power to be adjusted is used as the sub-power adjustment quantity. In addition, each charging order corresponds to a charging priority, the priority is related to a vehicle duration, for example, a preset vehicle duration is set to 5 hours, 7 hours and 18 hours by a user, at this time, a vehicle with the longest preset vehicle duration is set, the corresponding charging pile has the lowest order priority, after determining the order priority of the charging pile, the charging pile with the lowest order priority is used as the target charging pile, and the total power to be adjusted is used as the sub-power adjustment amount. Based on the method, when the required power is close to the rated power, the most appropriate target charging pile is selected for power adjustment, so that the transformer is prevented from running in an overload state, and the stability and safety of the charging process are improved. It should be noted that, besides selecting the target charging piles based on the charging parameters, the charging parameters may be combined, that is, the target charging piles are selected according to the charging duration, the remaining capacity and the charging priority at the same time, so as to ensure that the most appropriate target charging pile is selected from the dimensions, and improve the charging efficiency of each charging pile in the charging peak scene.

Alternatively, when the number of target charging piles is two, two target charging piles may be selected from the charging piles operating based on the normal power while taking half of the normal power as the sub-power adjustment amount. Specifically, firstly determining the charging piles corresponding to the charging parameters and running based on normal power, then selecting two charging piles with the largest charging duration from the charging piles running according to the normal power as the target charging piles, and taking half of the normal power as the sub-power adjustment quantity; in addition, a vehicle with the largest residual quantity can be selected from the charging piles operating according to the normal power, the two corresponding charging piles are used as the target charging piles, and half of the normal power is used as the sub-power adjustment quantity; further, two charging piles with the smallest charging priority can be selected from the charging piles operating according to the normal power to serve as the target charging piles, and half of the normal power is used as the sub-power adjustment amount.

It should be noted that, in another alternative embodiment, the charging pile corresponding to the charging order may be used as the target charging pile, and one of the charging piles is selected from the charging piles in normal power operation as the target charging pile. Therefore, after determining the charging pile corresponding to the charging parameter and operating based on normal power, selecting a charging pile with the largest charging duration from the charging piles operating according to normal power, and taking the charging pile corresponding to the charging order as the target charging pile, and taking half of the normal power as the sub-power adjustment amount; or selecting a charging pile corresponding to the vehicle with the largest residual quantity from the charging piles operated according to the normal power, taking the charging pile corresponding to the charging order as the target charging pile, and taking half of the normal power as the sub-power adjustment quantity; and selecting a charging pile with the smallest charging priority from the charging piles operated according to the normal power, taking the charging pile corresponding to the charging order as the target charging pile, and taking half of the normal power as the sub-power adjustment quantity. Besides selecting the target charging piles based on the charging parameters, the charging parameters can be combined, namely, the target charging piles are selected according to the charging duration, the residual electric quantity and the charging priority at the same time, so that the most appropriate target charging pile is selected from multiple dimensions. Based on the method, the charging power of each charging pile is reasonably distributed when the charging peak scene and the guarantee transformer are in a normal running state by flexibly adjusting the selection mode of the target charging pile and selecting the target charging pile according to a plurality of dimensions, so that the automobile charging efficiency in the charging peak scene is improved.

It can be understood that in the process of selecting the sub-power adjustment amount, when the number of the selected target charging piles is 1, the total power to be adjusted is directly used as the sub-power adjustment amount, and when the number of the selected target charging piles is two or more, one half or three parts of the normal power is used as the sub-power adjustment amount. Meanwhile, the total power to be adjusted is smaller than the normal power of the charging pile, so that the total sum of the sub-power adjustment amounts is larger than or equal to the power to be adjusted. The number of the target charging piles can be set according to actual requirements.

And step S40, reducing the output power of the target charging pile according to the sub-power adjustment quantity.

In this embodiment, in the process of reducing the output power of the target charging pile, as an optional implementation manner, when the number of the target charging piles is 1, the sub-power adjustment amount is the total amount of power to be adjusted, and the total amount of power to be adjusted is the charging power that is greater than the total amount of power to be adjusted, based on this, the output power of the target charging pile may be subtracted by the sub-power adjustment amount, so as to obtain the reduced output power.

In another alternative embodiment, when the number of the target charging piles is two or more, the sub-power adjustment amount is 1/N of the normal power (N is the number of the target charging piles), and at this time, the charging power of the target charging piles may be adjusted to a size corresponding to the sub-power adjustment amount. Through adjusting the output power of the target charging pile, the transformer can stably run in a charging peak scene, and the charging safety and stability are improved.

The specific power parameters referred to in this embodiment are only for explanation, and are not meant to limit the present invention.

In the technical scheme disclosed in this embodiment, after receiving a charging order, the required power is calculated according to the relevant information of the charging order and the output power of the charging system, and the power to be adjusted is calculated according to the required power and the rated power, when the power to be adjusted is greater than zero, in order to ensure charging safety, according to the charging parameters of the charging piles and the number of target charging piles, the target charging piles and the corresponding sub-power adjustment amounts are selected from multiple dimensions, and then the output power of the target charging piles is reduced according to the sub-power adjustment amounts. Based on the method, the transformer with lower rated power is selected, the output power of the charging pile is adjusted during the charging peak period, and the construction cost of the charging station is saved while the normal operation of the charging station, namely the stability and the safety of charging are ensured.

Second embodiment

Referring to fig. 2, after step S40, according to the first embodiment, the method further includes:

and S50, when the target charging piles are detected to complete the charging order, and the number of the target charging piles is two, adjusting the charging power of the other target charging pile to be normal power.

In this embodiment, after the charging order is completed by the target charging pile, the current output power of the charging system becomes smaller, and at this time, on the premise of ensuring charging safety, the charging power of another target charging pile can be adjusted back to the normal power, so that the charging efficiency is further improved.

In addition, when it is detected that the target charging piles complete the charging order and the number of the target charging piles is greater than two, the charging power of the target charging piles in the working state is increased according to the remaining power of the charging system, for example, the number of the target charging piles is 3, that is, the output power of one target charging pile is one third of the normal power, and after one pile completes charging, the power of the other two target charging piles can be increased to one half of the normal power.

In another alternative embodiment, when detecting that the charging piles other than the target charging pile complete the charging order, the charging power of the target charging pile is increased according to the remaining power of the charging system. And further, the charging efficiency is improved while the charging stability and the charging safety are guaranteed.

It can be understood that when the target charging piles are 1, the other charging piles are in a charging state with normal power, and the output power of the other charging piles is not required to be adjusted.

In the technical scheme disclosed in this embodiment, after one of the charging piles in the charging station completes the charging order, the charging power of the target charging pile is correspondingly adjusted back, so that the charging pile is prevented from being in a low-power charging state for a long time, and the overall charging efficiency of the charging station is improved.

Third embodiment

Based on the first embodiment, before step S10, further includes:

step S60, determining the charging voltage of the charging pile in a charging state and a floating proportion corresponding to the charging voltage;

step S70, when the floating proportion is larger than the preset proportion, outputting voltage to adjust the page

Step S80, responding to the operation information received by the voltage adjustment interface, at least executing the following operations:

stopping the running state of the charging pile with the floating proportion being larger than the preset proportion; or reducing the preset proportion, and maintaining the running state of the charging pile when the floating proportion is smaller than the reduced preset proportion.

In this embodiment, the output voltage of the conventional safety protection measure of the charging pile fluctuates by 10% back and forth on the basis of 220 v voltage, which is acceptable. When the charging pile is in the charging peak period, the output voltage of the charging pile is less than 220V, the voltage floating proportion is far less than the preset proportion of 10%, and at the moment, in order to ensure the charging safety, a corresponding voltage adjustment interface can be output for the operation of staff. When the worker executes the instruction of stopping operation, stopping operation of the charging pile with the floating proportion being larger than the preset proportion, and when the worker gets confirmation of the automobile charging user, reducing the preset proportion on the premise of ensuring the electricity utilization safety, for example, adjusting the preset proportion to 15%, and simultaneously maintaining the operation state of the charging pile when the floating proportion is within 15%, and stopping operation of the charging pile when the floating proportion is still larger than 15%.

In the technical scheme disclosed by the embodiment, in the power consumption peak period, the negative pressure protection threshold value of the charging pile can be adjusted based on the confirmation information of the automobile user, so that the charging pile is ensured to continue to operate, the charging stability is improved, and meanwhile, when the voltage of the charging pile is too low, the charging order is stopped in time, and the charging safety is ensured.

Referring to fig. 3, fig. 3 is a schematic diagram of a terminal structure of a hardware running environment according to an embodiment of the present invention.

As shown in fig. 3, the terminal may include: a processor 1001, such as a central processing unit (Central Processing Unit, CPU), a communication bus 1002, a network interface 1003, and a memory 1004. Wherein the communication bus 1002 is used to enable connected communication between these components. The network interface 1003 may optionally include a standard wired interface, a WIreless interface (e.g., a WIreless-FIdelity (WI-FI) interface). The Memory 1004 may be a high-speed RAM Memory (Random Access Memory, RAM) or a stable Non-Volatile Memory (NVM), such as a disk Memory. The memory 1004 may also optionally be a storage device separate from the processor 1001 described above.

It will be appreciated by those skilled in the art that the terminal structure shown in fig. 3 is not limiting of the terminal and may include more or fewer components than shown, or may combine certain components, or a different arrangement of components.

As shown in fig. 3, an operating system, a data storage module, a network communication module, and a power control program of a charging system may be included in the memory 1004, which is a kind of computer storage medium.

In the terminal shown in fig. 3, the network interface 1003 is mainly used for connecting to a background server, and performing data communication with the background server; the processor 1001 may call a power control program of the charging system stored in the memory 1004 and perform the following operations:

Further, the processor 1001 may call a power control program of the charging system stored in the memory 1004, and further perform the following operations:

Furthermore, it will be appreciated by those of ordinary skill in the art that implementing all or part of the processes in the methods of the above embodiments may be accomplished by computer programs to instruct related hardware. The computer program comprises program instructions, and the computer program may be stored in a storage medium, which is a computer readable storage medium. The program instructions are executed by at least one processor in the control terminal to carry out the flow steps of the embodiments of the method described above.

Accordingly, the present invention also provides a computer-readable storage medium storing a power control program of a charging system, which when executed by a processor, implements the steps of the power control method of a charging system as described in the above embodiments.

It should be noted that, because the storage medium provided in the embodiments of the present application is a storage medium used to implement the method in the embodiments of the present application, based on the method described in the embodiments of the present application, a person skilled in the art can understand the specific structure and the modification of the storage medium, and therefore, the description thereof is omitted herein. All storage media used in the methods of the embodiments of the present application are within the scope of protection intended in the present application.

It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flowchart and/or block of the flowchart illustrations and/or block diagrams, and combinations of flowcharts and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It should be noted that in the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.

While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the invention.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.

Claims

1. A power control method of a charging system, characterized in that the power control method of the charging system comprises:

2. The method of power control of a charging system according to claim 1, further comprising, before the step of determining the total amount of power to be adjusted based on the required power and the rated power of the charging system

3. The method for controlling power of a charging system according to claim 1, wherein when the total amount of power to be adjusted is greater than zero and less than the normal power of the charging piles and the number of target charging piles is single, the step of determining the target charging piles according to the charging parameters of the respective charging piles in the charged state and the sub-power adjustment amount corresponding to the target charging piles includes:

4. The power control method of a charging system according to claim 1, wherein when the number of the target charging piles is two, the step of determining the target charging pile according to the charging parameters of each charging pile in the charged state, and the sub-power adjustment amount corresponding to the target charging pile includes:

5. The method of power control of a charging system according to claim 4, wherein after the step of determining the charging pile for which the charging parameter corresponds based on normal power operation, further comprising:

6. The method of controlling power of a charging system according to claim 1, wherein after the step of determining the total amount of power to be adjusted based on the required power and the rated power of the charging system, further comprising:

7. The power control method of a charging system according to claim 1, wherein after the step of reducing the output power of the target charging pile according to the sub-power adjustment amount, further comprising:

8. The method for controlling power of a charging system according to claim 1, wherein, when the charging system receives a charging order, the step of determining the required power of the charging system according to the mono-pile power corresponding to the charging order and the current output power of the charging system further comprises:

9. A power control device of a charging system, characterized in that the power control device of the charging system comprises: memory, a processor and a power control program of a charging system stored on the memory and executable on the processor, which when executed by the processor, implements the steps of the power control method of a charging system according to any one of claims 1 to 8.

10. A computer readable storage medium, characterized in that the computer readable storage medium has stored thereon a power control program of a charging system, which when executed by a processor, implements the steps of the power control method of a charging system according to any one of claims 1 to 8.