Charging pile control method and device, storage medium and computer equipment

Abstract

The invention discloses a charging pile control method and device, a storage medium and computer equipment, and relates to the technical field of charging control. The method comprises the steps that when a charging pile is in a charging state, the charging voltage of the charging pile is monitored in real time; and based on the charging voltage of the charging pile, the charging current of the charging pile is dynamically adjusted, the adjustment range of the charging current is between the basic current and the rated current, or the charging current is adjusted to be zero, so that the charging pile is controlled to suspend charging. According to the method, automatic adjustment of the charging power can be realized on the premise of no external power acquisition equipment, basic living electricity utilization and electricity utilization safety of a user are guaranteed, the problem of charging failure caused by sudden voltage drop is avoided, and efficient charging can also be realized under the condition of poor power grid quality. According to the method, any external power acquisition device or equipment is not needed, the safety and reliability of the system are effectively improved, and meanwhile, the overall cost and the installation complexity of the charging pile are reduced.

Description

Technical Field

[0001] The present application relates to the field of charging control technology, and in particular to a charging pile control method, device, storage medium and computer equipment. Background Art

[0002] At present, in some old communities, dormitory areas and rural areas, the deployment of charging piles is facing many challenges due to the structural limitations of the power grid left over from history and the lagging infrastructure update. Specifically, such areas often fail to carry out the necessary power grid transformation at the beginning of the installation of charging piles. In addition, the substations are scattered and far away, which limits the efficiency of power transmission. In addition, these charging piles are often lacking in integration with IoT technology during design and deployment, and are not equipped with facilities for real-time collection and monitoring of user power. Therefore, the charging piles deployed in such areas generally lack the ability to automatically adjust power.

[0003] During peak hours of electricity demand, due to the lack of automatic power regulation capabilities of charging piles, excessive power resources may be consumed during the charging process, resulting in a sharp increase in the local grid load, which in turn causes a voltage drop. This not only seriously restricts the charging efficiency of new energy equipment such as electric vehicles, leading to frequent charging interruptions or failures, but may also cause household appliances to not work properly. In addition, due to the high power load of the charging piles, it may also cause line overloads, increase the risk of fire, and thus pose a safety hazard. Summary of the invention

[0004] In view of this, the embodiments of the present application provide a charging pile control method, device, storage medium and computer equipment, the main purpose of which is to solve the technical problem that charging piles in some areas cannot ensure electricity safety during peak hours.

[0005] According to one aspect of the present application, a charging pile control method is provided, the method comprising:

[0006] When the charging pile is in a charging state, real-time monitoring of the charging voltage of the charging pile;

[0007] Based on the charging voltage of the charging pile, the charging current of the charging pile is dynamically adjusted, wherein the adjustment range of the charging current is between the basic current and the rated current, or the charging current is adjusted to zero to control the charging pile to suspend charging.

[0008] Optionally, the charging current of the charging pile is dynamically adjusted based on the charging voltage of the charging pile, including: when it is detected that the charging voltage is greater than or equal to a preset safety voltage threshold, controlling the charging current to dynamically adjust between the basic current and the rated current; when it is detected that the charging voltage is less than the safety voltage threshold, controlling the charging current to zero so that the charging pile suspends charging.

[0009] Optionally, when it is detected that the charging voltage is greater than or equal to a preset safety voltage threshold, the charging current is controlled to be dynamically adjusted between the basic current and the rated current, including: looping the following method: when it is detected that the charging voltage is greater than a preset current boost voltage threshold for a period exceeding a first preset period, detecting whether the charging current is less than the rated current, wherein the current boost voltage threshold is greater than the safety voltage threshold; if the charging current is less than the rated current, increasing the charging current until the charging current reaches the rated current.

[0010] Optionally, when it is detected that the charging voltage is greater than or equal to a preset safety voltage threshold, controlling the charging current to dynamically adjust between the basic current and the rated current also includes: looping the following method: when it is detected that the charging voltage is greater than or equal to the safety voltage threshold, and is less than or equal to a preset current-increasing voltage threshold for a period exceeding a second preset period, detecting whether the charging current is greater than or equal to the basic current, wherein the current-increasing voltage threshold is greater than the safety voltage threshold; if the charging current is greater than or equal to the basic current, keeping the charging current unchanged or reducing the charging current so that the charging current is greater than or equal to the basic current.

[0011] Optionally, when it is detected that the charging voltage is less than the safety voltage threshold, the charging current is controlled to zero so that the charging pile suspends charging, including: looping the following method: when it is detected that the charging voltage is less than the safety voltage threshold for more than a third preset time period, the charging current is controlled to zero so that the charging pile suspends charging.

[0012] Optionally, after controlling the charging current to zero so that the charging pile suspends charging, the method also includes: when the charging pile is in a suspended charging state, monitoring the charging voltage of the charging pile in real time; when it is detected that the charging voltage is greater than or equal to a preset restart voltage threshold, restarting charging, wherein the restart voltage threshold is greater than the safety voltage threshold; when it is detected that the charging voltage is less than the restart voltage threshold, controlling the charging current to zero so that the charging pile remains in a suspended charging state.

[0013] Optionally, restarting charging when it is detected that the charging voltage is greater than or equal to a preset restart voltage threshold includes: looping the following method: when it is detected that the charging voltage is greater than or equal to the restart voltage threshold for a period exceeding a fourth preset period, controlling the charging pile to restart and charge with the basic current.

[0014] Optionally, when the charging pile is in a charging state, before real-time monitoring of the charging voltage of the charging pile, the method also includes: reading the charging voltage of the charging pile in response to a charging instruction; setting a starting current of the charging pile based on the charging voltage of the charging pile, and controlling the charging pile to start and charge with the starting current, wherein the setting range of the starting current is between the base current and the rated current.

[0015] Optionally, based on the charging voltage of the charging pile, the starting current of the charging pile is set, and the charging pile is controlled to start and charge with the starting current, including: when it is detected that the charging voltage is greater than or equal to a preset starting voltage threshold, the charging pile is controlled to start and charge with the rated current; when it is detected that the charging voltage is less than the starting voltage threshold, the charging pile is controlled to start and charge with the basic current.

[0016] According to another aspect of the present application, a charging pile control device is provided, the device is arranged in the charging pile, the device comprises a current detection device, a voltage detection device and a control device; wherein the control device is used to:

[0017] When the charging pile is in a charging state, the charging voltage of the charging pile is monitored in real time through the charging voltage detection signal sent by the voltage detection device;

[0018] Based on the charging voltage of the charging pile, the charging current of the charging pile is dynamically adjusted by the detection signal of the charging current sent by the current detection device, wherein the adjustment range of the charging current is between the basic current and the rated current, or the charging current is adjusted to zero to control the charging pile to suspend charging;

[0019] A control guidance signal is generated based on the charging current, and the control guidance signal is sent to a load to be charged through a communication module of the charging pile, so that the load is charged based on the control guidance signal.

[0020] According to another aspect of the present application, a storage medium is provided, on which a computer program is stored, and when the program is executed by a processor, the above-mentioned charging pile control method is implemented.

[0021] According to another aspect of the present application, a computer device is provided, including a storage medium, a processor, and a computer program stored on the storage medium and executable on the processor, wherein the processor implements the above-mentioned charging pile control method when executing the program.

[0022] By means of the above technical solution, a charging pile control method, device, storage medium and computer equipment provided in the embodiment of the present application can monitor the charging voltage of the charging pile in real time when the charging pile is in the charging state, and dynamically adjust the charging current of the charging pile between the basic current and the rated current based on the charging voltage of the charging pile, or adjust the charging current to zero to control the charging pile to suspend charging. The above method can realize automatic adjustment of charging power without external power collection equipment, ensure the basic living electricity and electricity safety of users, avoid the problem of charging failure caused by voltage drop, and realize efficient charging even when the power grid quality is poor. The above method does not require any external power collection device or equipment, which effectively improves the safety and reliability of the system. At the same time, the above method also reduces the overall cost and installation complexity of the charging pile.

[0023] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0025] Figure 1 A schematic diagram of a charging pile control method provided by the prior art is shown;

[0026] Figure 2 A schematic diagram of a charging pile control method provided in an embodiment of the present application is shown;

[0027] Figure 3 A schematic diagram of a charging pile control method provided in an embodiment of the present application is shown;

[0028] Figure 4 A schematic diagram of a charging pile control method provided in an embodiment of the present application is shown;

[0029] Figure 5 A schematic diagram of a charging pile control method provided in an embodiment of the present application is shown;

[0030] Figure 6 A schematic diagram of a charging pile control method provided in an embodiment of the present application is shown;

[0031] Figure 7 A schematic diagram of a charging pile control method provided in an embodiment of the present application is shown;

[0032] Figure 8 A schematic diagram of a charging pile control method provided in an embodiment of the present application is shown;

[0033] Fig. 9 A schematic diagram of a charging pile control method provided in an embodiment of the present application is shown;

[0034] Fig.10 A schematic diagram of a charging pile control method provided in an embodiment of the present application is shown;

[0035] Fig.11 A schematic structural diagram of a charging pile control device provided in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0036] The present application will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict.

[0037] In some old communities, dormitory areas and rural areas, due to historical reasons, the grid transformation has not been followed up in time or the substation is located in a remote area. In addition, the charging piles are often not connected to the Internet of Things or lack a user power collection system when they are installed. These charging piles lack the ability to automatically adjust power. During peak power demand periods, charging piles may output high power without restriction, resulting in a sudden drop in local voltage, which not only affects the charging efficiency of the charging piles, but may also cause charging interruptions or household appliances to be unusable due to unstable voltage. More seriously, excessive loads may also cause line overheating, increasing the risk of safety accidents such as fires.

[0038] In order to solve the above problems, the prior art proposes a technical solution of installing power collection equipment to monitor and regulate the power output of the charging pile. Figure 1 As shown in the figure, the above technical solution collects the total power of the household and dynamically adjusts the power of the charging pile according to the preset maximum power limit of the household to prevent overload. However, the above technical solution requires a preset maximum power for each charging pile, which increases the complexity of charging pile deployment and configuration; secondly, the installation of dedicated power collection equipment also increases additional hardware costs; thirdly, the charging pile needs to have the ability to communicate with the power collection equipment, which further increases the overall cost of charging pile installation.

[0039] In view of the shortcomings of the prior art, the present application provides a charging pile control method. The method uses the built-in input voltage detection function of the charging pile to enable the charging pile to autonomously monitor the power grid status and dynamically adjust its output power accordingly. The above method can not only effectively avoid the voltage fluctuation problem caused by excessive charging power and ensure the normal use of household appliances, but also reduce the safety hazards caused by overload.

[0040] Based on the above ideas, in one embodiment, Figure 2 As shown, a charging pile control method is provided, and the method is applied to a control device inside a charging pile as an example for explanation, comprising the following steps: when the charging pile is in a charging state, the charging voltage of the charging pile is monitored in real time, and the charging current of the charging pile is dynamically adjusted based on the charging voltage of the charging pile, wherein the adjustment range of the charging current is between the basic current and the rated current, or the charging current is adjusted to zero to control the charging pile to suspend charging. The present invention uses the maximum current that the power grid can withstand as much as possible for charging through cyclic detection, thereby improving the charging efficiency.

[0041] In this embodiment, the above-mentioned charging pile control method can be implemented by a control device inside the charging pile, the charging voltage of the charging pile can be collected by a voltage detection device provided inside the charging pile, and the charging current of the charging pile can be collected by a current detection device provided inside the charging pile, and the control device can dynamically adjust the charging current based on the collected charging current based on the detection result of the charging voltage. Among them, the principle of adjusting the charging current after collecting it is: during the charging process, the charging pile needs to provide a certain current capacity to the load (such as an electric vehicle), and the load will decide how much current to charge according to its own conditions. At different times, under different states of the load, under different current capacities provided by the charging pile, the decision of the load may be different, and the decision of different loads is also different, and the current flows from the charging pile to the load, and the current measured on the charging pile is consistent with the current on the load. Therefore, by sampling the charging current of the charging pile, the actual charging current of the charging pile can be measured, and then the charging current can be dynamically adjusted between the basic current and the rated current according to the actual collected charging current, thereby ensuring the power safety of the charging pile and the smooth implementation of the charging process.

[0042] Specifically, in the charging state, the charging current I of the charging pile can be adjusted in real time by monitoring the charging voltage U of the charging pile, wherein the adjustment range of the charging current is between the basic current Imin and the rated current Imax, or directly adjusted to 0, that is, the charging pile is controlled to suspend charging. In this embodiment, the basic current is the minimum charging current defined in the charging standard, for example, 6A, and the rated current is the rated current defined by the charging pile. It should be noted that the basic circuit Imin and the rated current Imax are pre-set by the control device inside the charging pile. The regulations of different countries or regions are different, and no specific limitation is made here.

[0043] Furthermore, during the charging process, when it is detected that the charging voltage of the power grid fluctuates greatly, the size of the charging current can be actively adjusted so that the charging voltage and charging power of the power grid can be maintained in a relatively balanced state. This balanced state runs through the entire charging process of the charging pile, so that the charging pile can guarantee the basic living electricity consumption of users while ensuring the charging efficiency, and ensure the safety of electricity use. When it is detected through the charging voltage that the quality of the power grid is no longer suitable for continued charging, such as when it is detected that the charging voltage has dropped to a certain range, the charging pile can be controlled to suspend charging to prevent the voltage from suddenly dropping and causing hidden dangers to electricity use. In some old communities, dormitory areas, rural areas and other power use scenarios, the large fluctuations in voltage with current are often caused by the aging of the transmission line or the insufficient rated power of the transmission line. The above method can be used to dynamically adjust the charging power of the charging pile to ensure the safety of users' electricity use.

[0044] The technical solution provided by the above embodiment monitors the charging voltage of the charging pile in real time when the charging pile is in the charging state, and dynamically adjusts the charging current of the charging pile between the basic current and the rated current based on the charging voltage of the charging pile, or adjusts the charging current to zero to control the charging pile to suspend charging. The above method can realize automatic adjustment of charging power without external power collection equipment, ensure the basic living electricity and electricity safety of users, avoid the problem of charging failure caused by voltage drop, and realize efficient charging even when the power grid quality is poor. The above method does not require any external power collection device or equipment, effectively improves the safety and reliability of the system, and at the same time reduces the overall cost and installation complexity of the charging pile.

[0045] In one embodiment, Figure 3 As shown, the method for dynamically adjusting the charging current of the charging pile can be implemented in the following manner: when it is detected that the charging voltage is greater than or equal to a preset safety voltage threshold, the charging current is controlled to be dynamically adjusted between the basic current and the rated current; when it is detected that the charging voltage is less than the safety voltage threshold, the charging current is controlled to be zero so that the charging pile suspends charging.

[0046] Specifically, the safety voltage threshold can be set according to the actual situation of the charging pile. For example, the safety voltage threshold can be set to 82% of the rated voltage of the charging pile. In this embodiment, when it is detected that the charging voltage is less than the safety voltage threshold, it indicates that the voltage quality of the power grid is no longer suitable for charging, and continued charging may cause dangerous conditions such as voltage drops. Therefore, when it is detected that the charging voltage is lower than the safety voltage threshold, the charging pile can be controlled to suspend charging to ensure the safety of electricity use. Accordingly, when the charging voltage is greater than or equal to the preset safety voltage threshold, the current value of the charging current can still be adjusted in real time according to the monitoring of the charging voltage. Dynamic adjustment is performed between the basic current and the rated current, so that the charging voltage and charging power of the power grid can be maintained in a relatively balanced state, thereby ensuring the safety of electricity use.

[0047] In one embodiment, Figure 4 As shown, the method for controlling the charging current to dynamically adjust between the basic current and the rated current can be implemented in the following manner: cyclically executing the following method: when it is detected that the charging voltage is greater than the preset current increasing voltage threshold for a period exceeding a first preset period, detecting whether the charging current is less than the rated current, wherein the current increasing voltage threshold is greater than the safety voltage threshold; if the charging current is less than the rated current, increasing the charging current until the charging current reaches the rated current.

[0048] Specifically, the current-increasing voltage threshold can be set according to the actual situation of the charging pile. For example, the current-increasing voltage threshold can be set to 87% of the rated voltage of the charging pile. When it is detected that the charging voltage is greater than the current-increasing voltage threshold, it indicates that the quality of the power grid can withstand the charging behavior of the charging pile at this time, and the charging current can be appropriately increased to improve the charging efficiency. Based on this, the setting value of the current-increasing voltage threshold should be greater than the safe voltage threshold used to control the charging pile to suspend charging. In this embodiment, the current value of the charging current can be cyclically adjusted based on the detection value of the charging voltage. For example, each time it is detected that the duration of the charging voltage greater than the current-increasing voltage threshold exceeds the first preset duration, and the charging current is less than the rated current, the charging current can be increased according to the preset step size, for example, the charging current is increased by 1A each time until the charging current increases to the rated current. It is understandable that the increase in the charging current can also be determined according to the detection value of the charging voltage, or according to the relationship between the detection value of the charging voltage and the threshold, or according to other methods. The duration of the first preset time can be set according to actual conditions, for example, set to 3 minutes. The setting of the preset time is used to prevent frequent adjustments from causing charging failures, and the preset time can also be set according to the voltage threshold to adjust the frequency. This embodiment is not specifically limited here. The above method can improve the charging efficiency of the charging pile while ensuring the safety of the user.

[0049] In the above embodiment, before adjusting the charging current, it is necessary to first sample the charging current of the charging pile through the current detection device, and then add the charging current to the sampled result of the charging current and output it to the load. The purpose of current sampling is to determine whether the charging current I is less than the rated current Imax based on the current value actually measured on the charging pile. If it is detected that the charging current I is less than the rated current Imax, the charging current continues to be increased, that is, the current capacity is increased to the load; if it is detected that the charging current I is greater than or equal to the rated current Imax, the charging current is set to the rated current to ensure the safety of the charging pile.

[0050] In one embodiment, Figure 5 As shown, the method for controlling the charging current to dynamically adjust between the basic current and the rated current can also be implemented in the following way: looping the following method: when it is detected that the charging voltage is greater than or equal to the safety voltage threshold, and is less than or equal to the preset current-increasing voltage threshold for a period exceeding a second preset period, detecting whether the charging current is greater than or equal to the basic current, wherein the current-increasing voltage threshold is greater than the safety voltage threshold; if the charging current is greater than or equal to the basic current, keeping the charging current unchanged or reducing the charging current so that the charging current is greater than or equal to the basic current.

[0051] Specifically, both the safety voltage threshold and the current-increasing voltage threshold can be set according to the actual situation of the charging pile. For example, the safety voltage threshold can be set to 82% of the rated voltage of the charging pile, and the current-increasing voltage threshold can be set to 87% of the rated voltage of the charging pile. In this embodiment, when it is detected that the charging voltage is greater than the safety voltage threshold, it indicates that the quality of the power grid can withstand the charging behavior of the charging pile at this time, but it is not suitable to increase the charging current, so as not to affect the safety of electricity use. At this time, the current value of the charging current can be cyclically adjusted based on the detection value of the charging voltage. For example, each time it is detected that the duration of the voltage greater than or equal to the safety voltage threshold and less than or equal to the current-increasing voltage threshold exceeds the second preset duration, and the charging current is greater than or equal to the basic current, the charging current is kept unchanged, or the charging current is gradually reduced according to a certain proportion or according to a preset step size, and at the same time, the charging current is ensured to be greater than or equal to the basic current. It is understandable that the reduction value of the charging current can also be determined according to the detection value of the charging voltage or other methods. The setting value of the second preset time can be set according to the actual situation, for example, it is set to 3 minutes. The setting of the preset time is used to prevent frequent adjustments from causing charging failures. The preset time can also be set according to the voltage threshold to adjust the frequency. This embodiment is not specifically limited. The above method can ensure the charging efficiency of the charging pile while ensuring the safety of the user.

[0052] In the above embodiment, before adjusting the charging current, it is also necessary to first sample the charging current of the charging pile through the current detection device, and then reduce the charging current or keep the charging current unchanged based on the sampling result of the charging current. The purpose of current sampling is to determine whether the charging current I is greater than or equal to the basic current Imin according to the current value actually measured on the charging pile. If it is detected that the charging current I is greater than or equal to the basic current Imin, the charging current is reduced or kept unchanged; if it is detected that the charging current I is less than the basic current Imin, the charging current is set to the basic current Imin to ensure that the charging process can be completed smoothly.

[0053] In one embodiment, Figure 6 As shown, the method for controlling the charging pile to suspend charging can be implemented in the following way: looping the following method: when it is detected that the charging voltage is less than the safety voltage threshold for more than a third preset time, controlling the charging current to zero to suspend charging the charging pile.

[0054] Specifically, when it is detected that the duration of the charging voltage being less than the safety voltage threshold exceeds the third preset duration, it indicates that the voltage quality of the power grid is already very poor at this time, and this continuous deterioration is not a short-term instantaneous state, but lasts for a short period of time. At this time, continuing charging is likely to cause dangerous conditions such as voltage drops. Therefore, when it is detected that the charging voltage is lower than the safety voltage threshold for more than the third preset duration, the charging pile can be controlled to suspend charging to ensure the safety of electricity use. Among them, the setting value of the safety voltage threshold and the setting value of the third preset duration can be set according to actual conditions. For example, the safety voltage threshold can be set to 82% of the rated voltage of the charging pile, and the third preset duration can be set to 3 minutes, etc. The setting of the preset duration is used to prevent frequent adjustments from causing charging failures, and the preset duration can also be set according to the voltage threshold to adjust the frequency. This embodiment is not specifically limited here. Further, after controlling the charging pile to suspend charging, a warning message can be further issued, and the warning message can be displayed through a display device on the charging pile or through a user terminal or other devices to remind the user to update or upgrade the transmission line, thereby ensuring the safety of electricity use.

[0055] In one embodiment, Figure 7 As shown, after controlling the charging pile to suspend charging, the above-mentioned charging pile control method may further include the following steps: when the charging pile is in a suspended charging state, monitoring the charging voltage of the charging pile in real time; when it is detected that the charging voltage is greater than or equal to a preset restart voltage threshold, restarting the charging, wherein the restart voltage threshold is greater than the safety voltage threshold; when it is detected that the charging voltage is less than the restart voltage threshold, controlling the charging current to zero to keep the charging pile in a suspended charging state.

[0056] Specifically, the restart voltage threshold can be set according to the actual situation of the charging pile. For example, the restart voltage threshold can be set to 87% of the rated voltage of the charging pile. When it is detected that the charging voltage is greater than or equal to the restart voltage threshold, it indicates that the quality of the power grid is slightly restored compared to the quality of the power grid when charging is suspended, and the charging behavior of the charging pile can be tolerated, and charging can be resumed. Correspondingly, when it is detected that the charging voltage is less than the restart voltage threshold, it indicates that the quality of the power grid is still poor and not stable enough, and it is not suitable for resuming charging. Based on this, in order to ensure the safety of electricity use of the charging pile, the setting value of the restart voltage threshold should be greater than the safety voltage threshold used to control the charging pile to suspend charging. In this embodiment, in the state of suspending charging, the charging voltage of the charging pile can be monitored in real time, and when it is detected that the charging voltage is greater than or equal to the preset restart voltage threshold, the charging is restarted to ensure the charging efficiency. Correspondingly, when it is detected that the charging voltage is less than the restart voltage threshold, the charging current is controlled to zero so that the charging pile remains in the suspended charging state, thereby ensuring the safety of electricity use.

[0057] In one embodiment, Figure 8 As shown, the method for restarting charging can be implemented in the following manner: looping the following method: when it is detected that the charging voltage is greater than or equal to the restart voltage threshold for a period exceeding a fourth preset period, controlling the charging pile to restart and charge with a basic current.

[0058] In this embodiment, in the state of suspending charging, the charging voltage of the charging pile can be detected cyclically. When it is detected that the charging voltage is greater than or equal to the restart voltage threshold for a period of time exceeding the fourth preset time, it indicates that the quality of the power grid has recovered to a state where charging is possible and has been stable for a short period of time. At this time, the charging pile can be controlled to restart and charge with the basic current. Among them, controlling the charging pile to restart and charge with the basic current can ensure the safety of electricity use of the charging pile and reduce the load of the power grid. In this embodiment, the set value of the restart voltage threshold and the set value of the fourth preset time can be set according to actual conditions. For example, the restart voltage threshold can be set to 87% of the rated voltage of the charging pile, and the fourth preset time can be set to 3 minutes, etc. The setting of the preset time is used to prevent charging failures caused by frequent adjustments, and the preset time can also be set according to the voltage threshold to adjust the frequency. This embodiment is not specifically limited here.

[0059] In one embodiment, Fig. 9 As shown, before the charging pile is in the charging state, the above-mentioned charging pile control method may further include the following steps: in response to a charging instruction, reading the charging voltage of the charging pile; based on the charging voltage of the charging pile, setting the starting current of the charging pile, and controlling the charging pile to start and charge with the starting current, wherein the setting range of the starting current is between the base current and the rated current.

[0060] Specifically, the charging pile can start charging in response to a charging instruction, wherein the charging instruction can be sent by the user or automatically sent after detecting that the charging pile is connected to the load to be charged. This embodiment does not limit the sending method of the charging instruction. In this embodiment, the control device can read the charging voltage in the current state in response to the charging instruction, and set the starting current of the charging pile based on the charging voltage, and then control the charging pile to start and charge with the starting current. Among them, the setting value of the starting current is related to the voltage value of the charging voltage in the starting state. When the charging voltage is high and relatively stable, the starting current is also high, thereby improving the charging efficiency of the charging pile; when the charging voltage is low and not very stable, the starting current is also low, thereby ensuring the safety of the charging pile. In this embodiment, the setting value of the starting current and the mapping relationship between the starting current and the charging voltage can be set according to the actual situation, and the setting range is between the basic current and the rated current. The specific setting value and the mapping relationship are not specifically limited in this embodiment.

[0061] In one embodiment, Fig.10 As shown, the method of controlling the charging pile to start and charge with a starting current can be implemented in the following manner: when it is detected that the charging voltage is greater than or equal to a preset starting voltage threshold, the charging pile is controlled to start and charge with a rated current; when it is detected that the charging voltage is less than the starting voltage threshold, the charging pile is controlled to start and charge with a basic current.

[0062] Specifically, the starting voltage threshold can be set according to the actual situation of the charging pile. For example, the starting voltage threshold can be set to 90% of the rated voltage of the charging pile. When it is detected that the charging voltage is greater than or equal to the starting voltage threshold, it indicates that the quality of the power grid is good at this time, and charging can be started with a larger starting current to improve the charging efficiency; when it is detected that the charging voltage is less than the starting voltage threshold, it indicates that the quality of the power grid is not very good at this time, and charging can be started with a smaller starting current to ensure the safety of electricity use. Based on this, the setting value of the starting voltage threshold should be greater than the safety voltage threshold used to control the charging pile to suspend charging. In this embodiment, in order to reduce the complexity of the starting process control, when it is detected that the charging voltage is greater than or equal to the preset starting voltage threshold, the charging pile can be controlled to start and charge with the rated current, and when it is detected that the charging voltage is less than the starting voltage threshold, the charging pile can be controlled to start and charge with the basic current. Further, in the charging state, the charging voltage of the charging pile can be monitored in real time, and the charging current of the charging pile can be dynamically adjusted between the basic current and the rated current based on the charging voltage of the charging pile, or, when it is detected that the quality of the power grid is poor and charging cannot continue, the charging current is adjusted to zero to control the charging pile to suspend charging. In this embodiment, when it is detected that the charging voltage in the starting state is lower than the safety voltage threshold, it is still necessary to start charging with the basic current, and monitor the charging voltage in real time during the charging process. When it is detected that the charging voltage does not meet the charging conditions, the charging pile is controlled to suspend charging to ensure electricity safety.

[0063] Further, as a refinement and extension of the specific implementation of the above embodiment, in order to fully illustrate the specific implementation process of this embodiment, a charging pile control method is provided, the method comprising:

[0064] Step 1: In response to a charging instruction, read the charging voltage of the charging pile.

[0065] Step 2: When it is detected that the charging voltage is greater than or equal to the preset starting voltage threshold, the charging pile is controlled to start and charge with the rated current; when it is detected that the charging voltage is less than the starting voltage threshold, the charging pile is controlled to start and charge with the basic current.

[0066] Loop through steps 3 to 6:

[0067] Step 3: When the charging pile is in the charging state, monitor the charging voltage of the charging pile in real time.

[0068] Step 4: when it is detected that the charging voltage is greater than the preset current-increasing voltage threshold for a period exceeding a first preset period and the charging current is less than the rated current, increase the charging current until the charging current reaches the rated current.

[0069] Step 5: When it is detected that the charging voltage is greater than or equal to the safety voltage threshold, the time when it is less than or equal to the current increase voltage threshold exceeds the second preset time, and the charging current is greater than or equal to the basic current, the charging current is kept unchanged or reduced so that the charging current is greater than or equal to the basic current.

[0070] Step 6: When it is detected that the charging voltage is less than the safety voltage threshold for a period exceeding a third preset period, the charging current is controlled to be zero so that the charging pile suspends charging.

[0071] Loop through steps 7 to 9:

[0072] Step 7: When the charging pile is in a suspended charging state, monitor the charging voltage of the charging pile in real time.

[0073] Step 8: When it is detected that the charging voltage is greater than or equal to the restart voltage threshold for a period exceeding a fourth preset period, the charging pile is controlled to restart and charge with a basic current.

[0074] Step nine: when it is detected that the charging voltage is less than the restart voltage threshold, the charging current is controlled to be zero so that the charging pile remains in a suspended charging state.

[0075] By applying the technical solution of this embodiment, the automatic adjustment of charging power can be achieved without external power collection equipment. The process of automatic power adjustment runs through the entire process of starting charging, charging, pausing charging, and restarting charging, so that the user's basic living electricity and electricity safety can be guaranteed during the entire charging process, avoiding the problem of charging failure caused by voltage drop, and achieving efficient charging even when the power grid quality is poor. The above method does not require any external power collection device or equipment, effectively improves the safety and reliability of the system, and at the same time reduces the overall cost and installation complexity of the charging pile.

[0076] It should be noted that the information (including but not limited to user information and device information, etc.) and data (including but not limited to data for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties. In addition, the numbers corresponding to the various steps in the above embodiments only serve as identification and are not used as a limitation on the order in which the steps are executed. The order in which the steps are executed in each embodiment can be set according to actual conditions.

[0077] Further, as Figures 2 to 10 The specific implementation of the method shown in the figure, the embodiment of the present application provides a charging pile control device, such as Fig.11 As shown, the device is arranged in a charging pile, and the device comprises a current detection device, a voltage detection device and a control device. The control device is used for:

[0078] When the charging pile is in a charging state, the charging voltage of the charging pile is monitored in real time through the charging voltage detection signal sent by the voltage detection device;

[0079] Based on the charging voltage of the charging pile, the charging current of the charging pile is dynamically adjusted by the detection signal of the charging current sent by the current detection device, wherein the adjustment range of the charging current is between the basic current and the rated current, or the charging current is adjusted to zero to control the charging pile to suspend charging;

[0080] A control guidance signal is generated based on the charging current, and the control guidance signal is sent to a load to be charged through a communication module of the charging pile, so that the load is charged based on the control guidance signal.

[0081] In a specific application scenario, the control device can be used to control the charging current to dynamically adjust between the basic current and the rated current when it is detected that the charging voltage is greater than or equal to a preset safety voltage threshold; when it is detected that the charging voltage is less than the safety voltage threshold, the charging current is controlled to zero so that the charging pile suspends charging.

[0082] In a specific application scenario, the control device can be used to cyclically execute the following method: when it is detected that the charging voltage is greater than the preset current increase voltage threshold for more than a first preset time, detecting whether the charging current is less than the rated current, wherein the current increase voltage threshold is greater than the safety voltage threshold; if the charging current is less than the rated current, increasing the charging current until the charging current reaches the rated current.

[0083] In a specific application scenario, the control device can be used to cyclically execute the following method: when it is detected that the charging voltage is greater than or equal to the safety voltage threshold, and is less than or equal to the preset current increase voltage threshold for a period exceeding a second preset period, detecting whether the charging current is greater than or equal to the basic current, wherein the current increase voltage threshold is greater than the safety voltage threshold; if the charging current is greater than or equal to the basic current, maintaining the charging current unchanged or reducing the charging current so that the charging current is greater than or equal to the basic current.

[0084] In a specific application scenario, the control device can be used to cyclically execute the following method: when it is detected that the charging voltage is less than the safety voltage threshold for more than a third preset time, the charging current is controlled to zero so that the charging pile suspends charging.

[0085] In a specific application scenario, the control device can also be used to monitor the charging voltage of the charging pile in real time when the charging pile is in a suspended charging state; restart charging when it is detected that the charging voltage is greater than or equal to a preset restart voltage threshold, wherein the restart voltage threshold is greater than the safety voltage threshold; and control the charging current to zero when it is detected that the charging voltage is less than the restart voltage threshold to keep the charging pile in a suspended charging state.

[0086] In a specific application scenario, the control device can be used to cyclically execute the following method: when it is detected that the charging voltage is greater than or equal to the restart voltage threshold for a period exceeding a fourth preset period, the charging pile is controlled to restart and charge with the basic current.

[0087] In a specific application scenario, the control device can also be used to read the charging voltage of the charging pile in response to a charging instruction; set the starting current of the charging pile based on the charging voltage of the charging pile, and control the charging pile to start and charge with the starting current, wherein the setting range of the starting current is between the basic current and the rated current.

[0088] In a specific application scenario, the control device can be used to control the charging pile to start and charge with the rated current when it is detected that the charging voltage is greater than or equal to a preset starting voltage threshold; and to control the charging pile to start and charge with the basic current when it is detected that the charging voltage is less than the starting voltage threshold.

[0089] It should be noted that for other corresponding descriptions of the functional units involved in the charging pile control device provided in the embodiment of the present application, reference can be made to Figures 2 to 10 The corresponding description in the method will not be repeated here.

[0090] The embodiment of the present application also provides a computer device, which can be a personal computer, a server, a network device, etc. The computer device includes a bus, a processor, a memory and a communication interface, and can also include an input and output interface and a display device. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The database of the computer device is used to store location information. The network interface of the computer device is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor, the steps in each method embodiment are implemented.

[0091] Those skilled in the art will appreciate that the structure of the above-mentioned computer device is only a partial structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components, or combine certain components, or have a different arrangement of components.

[0092] In one embodiment, a computer-readable storage medium is provided. The computer-readable storage medium may be non-volatile or volatile, and stores a computer program thereon. When the computer program is executed by a processor, the steps in the above-mentioned method embodiments are implemented.

[0093] In one embodiment, a computer program product is provided, including a computer program, which implements the steps in the above method embodiments when executed by a processor.

[0094] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in the present application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. Non-relational databases may include distributed databases based on blockchains, etc., but are not limited to this. The processor involved in each embodiment provided in this application may be a general-purpose processor, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., but are not limited to this.

[0095] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0096] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A charging pile control method, characterized in that: The method comprises: When the charging pile is in a charging state, real-time monitoring of the charging voltage of the charging pile; Based on the charging voltage of the charging pile, the charging current of the charging pile is dynamically adjusted, wherein the adjustment range of the charging current is between the basic current and the rated current, or the charging current is adjusted to zero to control the charging pile to suspend charging.

2. The method according to claim 1, characterized in that: The dynamically adjusting the charging current of the charging pile based on the charging voltage of the charging pile includes: When it is detected that the charging voltage is greater than or equal to a preset safety voltage threshold, controlling the charging current to be dynamically adjusted between the basic current and the rated current; When it is detected that the charging voltage is less than the safety voltage threshold, the charging current is controlled to be zero so that the charging pile suspends charging.

3. The method according to claim 2, characterized in that When it is detected that the charging voltage is greater than or equal to a preset safety voltage threshold, controlling the charging current to dynamically adjust between the basic current and the rated current includes: Loop through the following methods: When it is detected that the charging voltage is greater than the preset current-increasing voltage threshold for a period exceeding a first preset period, detecting whether the charging current is less than the rated current, wherein the current-increasing voltage threshold is greater than the safety voltage threshold; If the charging current is less than the rated current, the charging current is increased until the charging current reaches the rated current.

4. The method according to claim 2 or 3, characterized in that: When detecting that the charging voltage is greater than or equal to a preset safety voltage threshold, controlling the charging current to dynamically adjust between the basic current and the rated current, further comprising: Loop through the following methods: When it is detected that the charging voltage is greater than or equal to the safety voltage threshold and is less than or equal to the preset current-increasing voltage threshold for a period exceeding a second preset period, detecting whether the charging current is greater than or equal to the basic current, wherein the current-increasing voltage threshold is greater than the safety voltage threshold; If the charging current is greater than or equal to the basic current, the charging current is kept unchanged or reduced to make the charging current greater than or equal to the basic current.

5. The method according to claim 2, characterized in that: When detecting that the charging voltage is less than the safety voltage threshold, controlling the charging current to be zero so that the charging pile suspends charging, comprises: Loop through the following methods: When it is detected that the duration for which the charging voltage is less than the safety voltage threshold exceeds a third preset duration, the charging current is controlled to be zero so that the charging pile suspends charging.

6. The method according to claim 2 or 5, characterized in that: After controlling the charging current to be zero so that the charging pile suspends charging, the method further includes: When the charging pile is in a suspended charging state, real-time monitoring of the charging voltage of the charging pile; When it is detected that the charging voltage is greater than or equal to a preset restart voltage threshold, restarting the charging, wherein the restart voltage threshold is greater than the safety voltage threshold; When it is detected that the charging voltage is less than the restart voltage threshold, the charging current is controlled to be zero, so that the charging pile remains in a suspended charging state.

7. The method according to claim 6, characterized in that When detecting that the charging voltage is greater than or equal to a preset restart voltage threshold, restarting charging includes: Loop through the following methods: When it is detected that the duration during which the charging voltage is greater than or equal to the restart voltage threshold exceeds a fourth preset duration, the charging pile is controlled to restart and charge with the basic current.

8. The method according to claim 1, characterized in that: When the charging pile is in a charging state, before real-time monitoring of the charging voltage of the charging pile, the method further includes: In response to a charging instruction, reading a charging voltage of the charging pile; Based on the charging voltage of the charging pile, a starting current of the charging pile is set, and the charging pile is controlled to start and charge with the starting current, wherein the setting range of the starting current is between the basic current and the rated current.

9. The method according to claim 8, characterized in that The step of setting the starting current of the charging pile based on the charging voltage of the charging pile, and controlling the charging pile to start and charge with the starting current includes: When it is detected that the charging voltage is greater than or equal to a preset starting voltage threshold, controlling the charging pile to start and charge with the rated current; When it is detected that the charging voltage is less than the starting voltage threshold, the charging pile is controlled to start and charge with the basic current.

10. A charging pile control device, characterized in that: The device is arranged in a charging pile, and comprises a current detection device, a voltage detection device and a control device; wherein the control device is used for: When the charging pile is in a charging state, the charging voltage of the charging pile is monitored in real time through the charging voltage detection signal sent by the voltage detection device; Based on the charging voltage of the charging pile, the charging current of the charging pile is dynamically adjusted by the detection signal of the charging current sent by the current detection device, wherein the adjustment range of the charging current is between the basic current and the rated current, or the charging current is adjusted to zero to control the charging pile to suspend charging; A control guidance signal is generated based on the charging current, and the control guidance signal is sent to a load to be charged through a communication module of the charging pile, so that the load is charged based on the control guidance signal.

11. A storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the method according to any one of claims 1 to 9 is implemented.

12. A computer device comprising a storage medium, a processor, and a computer program stored in the storage medium and executable on the processor, characterized in that: When the processor executes the computer program, the method according to any one of claims 1 to 9 is implemented.

Images