Charging and discharging power regulation method and device of charging pile and electronic equipment

Abstract

The application discloses a charging and discharging power adjustment method and device of a charging pile and electronic equipment. The method comprises the following steps: receiving a target electric energy state control request; in response to the target electric energy state control request, acquiring a power carbon emission coefficient change amount, a historical power carbon emission coefficient, a target power carbon emission coefficient in a predetermined power grid, a target electric energy state control characteristic parameter corresponding to the target charging pile, and a target battery capacity corresponding to a target electric vehicle; determining an electric energy state power curve corresponding to the target charging pile according to the target electric energy state characteristic parameter and the target battery capacity; and determining a target electric energy state power corresponding to the target charging pile according to the electric energy state power curve, the power carbon emission coefficient change amount, the historical power carbon emission coefficient, and the target power carbon emission coefficient. The application solves the technical problem that carbon emission pollution occurs to a certain extent when the charging and discharging power of the charging pile is adjusted in the related art.

Description

Technical Field

[0001] This invention relates to the field of electric vehicles, and more specifically, to a method, apparatus, and electronic device for adjusting the charging and discharging power of a charging pile. Background Technology

[0002] Excessive carbon emissions lead to climate change and have adverse effects, making the reduction of carbon emissions a basic consensus in human society. To incentivize the use of low-carbon electricity, various electricity carbon emission signals have been proposed to track the carbon emissions from electricity consumption, thereby evaluating and constraining users' carbon behavior, such as carbon emission coefficients. However, in related technologies, adjusting the charging and discharging power of charging stations generates a certain degree of carbon emission pollution.

[0003] There is currently no effective solution to the above problems. Summary of the Invention

[0004] This invention provides a method, apparatus, and electronic device for adjusting the charging and discharging power of a charging pile, in order to at least solve the technical problem in the related art that a certain degree of carbon emission pollution is generated when adjusting the charging and discharging power of a charging pile.

[0005] According to one aspect of the present invention, a method for adjusting the charging and discharging power of a charging pile is provided, comprising: receiving a target power state control request, wherein the target power state control request includes a charging state control request and a discharging state control request; responding to the target power state control request, acquiring the change in the power carbon emission coefficient in a predetermined power grid, historical power carbon emission coefficients, a target power carbon emission coefficient, target power state control characteristic parameters corresponding to the target charging pile, and target battery capacity corresponding to the target electric vehicle, wherein the target electric vehicle is connected to the target charging pile, the historical power carbon emission coefficients include multiple power carbon emission coefficients within a predetermined time period obtained from the predetermined power grid, and the target power carbon emission coefficient is the power carbon emission coefficient corresponding to a predetermined time period obtained from the predetermined power grid. The system calculates the power state coefficient; based on the target power state characteristic parameters and the target battery capacity, it determines the power state curve corresponding to the target charging pile; based on the power state curve, the change in the electricity carbon emission coefficient, the historical electricity carbon emission coefficient, and the target electricity carbon emission coefficient, it determines the target power state corresponding to the target charging pile; it sends a target power state control command to the target charging pile, so that when the target power state control request is the charging state control request, the target charging pile is controlled to charge the target electric vehicle at the target power state, and when the target power state control request is the discharging state control request, the target charging pile is controlled to receive the electricity released by the target electric vehicle at the target power state.

[0006] Optionally, determining the target state of power (SOP) corresponding to the target charging pile based on the SOP curve, the change in the power carbon emission coefficient, the historical power carbon emission coefficient, and the target power carbon emission coefficient includes: obtaining the rated maximum SOP of the target electric vehicle and the rated SOP of the target charging pile; determining the initial SOP corresponding to the target charging pile based on the SOP curve, the change in the power carbon emission coefficient, the historical power carbon emission coefficient, and the target power carbon emission coefficient; and determining the minimum SOP from the rated maximum SOP, the rated SOP, and the initial SOP as the target SOP corresponding to the target charging pile.

[0007] Optionally, determining the initial state of power (SOP) of the target charging pile based on the SOP curve, the change in the power carbon emission coefficient, the historical power carbon emission coefficient, and the target power carbon emission coefficient includes: determining the historical average power carbon emission coefficient, the historical maximum power carbon emission coefficient, and the historical minimum power carbon emission coefficient based on the historical power carbon emission coefficient; and determining the initial SOP of the target charging pile based on the SOP curve, the change in the power carbon emission coefficient, the historical average power carbon emission coefficient, the historical maximum power carbon emission coefficient, the historical minimum power carbon emission coefficient, and the target power carbon emission coefficient.

[0008] Optionally, determining the initial state of power (SOP) of the target charging pile based on the SOP curve, the change in the power carbon emission coefficient, the historical average power carbon emission coefficient, the historical maximum power carbon emission coefficient, the historical minimum power carbon emission coefficient, and the target power carbon emission coefficient includes at least one of the following: if the target power carbon emission coefficient is greater than or equal to the historical maximum power carbon emission coefficient, determining the rated maximum SOP as the initial SOP of the target charging pile; if the target power carbon emission coefficient is less than the historical maximum power carbon emission coefficient, but greater than or equal to the sum of the coefficients of the historical average power carbon emission coefficient and the change in the power carbon emission coefficient, determining a first SOP as the initial SOP of the target charging pile, wherein the first SOP is based on the rated maximum SOP curve, the change in the power carbon emission coefficient, the historical average power carbon emission coefficient, the historical minimum power carbon emission coefficient, the historical maximum power carbon emission coefficient, the historical minimum ... The maximum carbon emission coefficient, the power state curve, and the target power carbon emission coefficient are determined. If the target power carbon emission coefficient is less than the sum of the coefficients, and greater than or equal to the coefficient difference between the historical average power carbon emission coefficient and the change in the power carbon emission coefficient, a predetermined value is determined as the initial power state power corresponding to the target charging pile. If the target power carbon emission coefficient is less than the coefficient difference, and greater than or equal to the historical minimum power carbon emission coefficient, a second power state power is determined as the initial power state power corresponding to the target charging pile. The second power state power is determined based on the rated power state power, the change in the power carbon emission coefficient, the historical average power carbon emission coefficient, the historical minimum power carbon emission coefficient, the power state curve, and the target power carbon emission coefficient. If the target power carbon emission coefficient is less than the historical minimum power carbon emission coefficient, the rated power state power is determined as the initial power state power corresponding to the target charging pile.

[0009] Optionally, before determining the initial state of power (SOP) corresponding to the target charging pile based on the SOP curve, the change in the SOP, the historical average SOP, the historical maximum SOP and the historical minimum SOP, and the target SOP, the method further includes: determining a first difference between the historical maximum SOP and the target SOP, a second difference between the historical maximum SOP and the historical average SOP, and a third difference between the second difference and the change in the SOP, and determining the historical average SOP and the change in the SOP. The fourth difference, and the fifth difference between the fourth difference and the target electricity carbon emission coefficient, and the sixth difference between the fourth difference and the historical electricity minimum carbon emission coefficient; determine the first ratio between the first difference and the third difference, and determine the second ratio between the fifth difference and the sixth difference; determine the first product of the rated maximum power in the state of electricity and the first ratio under the target index, and determine the second product of the rated power in the state of electricity and the second ratio under the target index, wherein the target index is determined based on the power in the state of electricity curve; determine the difference between the first product and the rated maximum power in the state of electricity as the first power in the state of electricity, and determine the second product as the second power in the state of electricity.

[0010] Optionally, after sending the target power state control command to the target charging pile, the method further includes: determining the target carbon emissions generated by the target charging pile after executing the target power state control command; comparing the target carbon emissions with a preset carbon emissions to obtain a comparison result; and sending an alarm message to a predetermined terminal if the comparison result shows that the target carbon emissions are greater than the preset carbon emissions.

[0011] Optionally, determining the power state curve corresponding to the target charging pile based on the target power state characteristic parameters and the target battery capacity includes: determining a seventh difference between a predetermined coefficient and the target power state characteristic parameters, an eighth difference between the predetermined coefficient and the target battery capacity, and the product of the target power state characteristic parameters and the target battery capacity; determining a third ratio between the product and the eighth difference; determining the sum of the seventh difference and the third ratio; and determining the power state curve corresponding to the target charging pile based on the sum.

[0012] According to one aspect of the present invention, a charging and discharging power adjustment device for a charging pile is provided, comprising: a receiving module, configured to receive a target power state control request, wherein the target power state control request includes a charging state control request and a discharging state control request; and an acquisition module, configured to, in response to the target power state control request, acquire the change in the power carbon emission coefficient in a predetermined power grid, historical power carbon emission coefficients, a target power carbon emission coefficient, target power state control characteristic parameters corresponding to the target charging pile, and target battery capacity corresponding to the target electric vehicle, wherein the target electric vehicle is connected to the target charging pile, the historical power carbon emission coefficients include multiple power carbon emission coefficients within a predetermined time period obtained from the predetermined power grid, and the target power carbon emission coefficient is the power carbon emission coefficient corresponding to a predetermined time period obtained from the predetermined power grid; a first A determining module is used to determine the power state curve corresponding to the target charging pile based on the target power state characteristic parameters and the target battery capacity; a second determining module is used to determine the target power state corresponding to the target charging pile based on the power state curve, the change in the electricity carbon emission coefficient, the historical electricity carbon emission coefficient, and the target electricity carbon emission coefficient; a sending module is used to send a target power state control command to the target charging pile, so that when the target power state control request is the charging state control request, the target charging pile is controlled to charge the target electric vehicle at the target power state, and when the target power state control request is the discharging state control request, the target charging pile is controlled to receive the electricity released by the target electric vehicle at the target power state.

[0013] According to one aspect of the present invention, an electronic device is provided, comprising: a processor; and a memory for storing processor-executable requests; wherein the processor is configured to execute the requests to implement a charging and discharging power adjustment method for a charging pile as described in any of the preceding claims.

[0014] According to one aspect of the present invention, a computer-readable storage medium is provided, comprising: when a request in the computer-readable storage medium is executed by a processor of an electronic device, enabling the electronic device to perform a charging and discharging power adjustment method for a charging pile as described in any of the preceding claims.

[0015] In this embodiment of the invention, by receiving a target power state control request, which includes a charging state control request and a discharging state control request, in response to the target power state control request, the change in the carbon emission coefficient of electricity in a predetermined power grid, the historical carbon emission coefficient of electricity, the target carbon emission coefficient of electricity, the target power state control characteristic parameters corresponding to the target charging pile, and the target battery capacity corresponding to the target electric vehicle are obtained. Then, based on the target power state characteristic parameters and the target battery capacity, the power state power curve corresponding to the target charging pile is determined. Next, based on the power state power curve, the change in the carbon emission coefficient of electricity, the historical carbon emission coefficient of electricity, and the target carbon emission coefficient of electricity, the target power state power corresponding to the target charging pile is determined. Finally, a target power state control command is sent to the target charging pile so that when the target power state control request is a charging state control request, the target charging pile is controlled to charge the target electric vehicle at the target power state; when the target power state control request is a discharging state control request, the target charging pile is controlled to receive the electricity released by the target electric vehicle at the target power state. This achieves the goal of providing the target electric vehicle with the target state of energy (SGE) for charging and discharging based on the charging and discharging power of the target charging pile. This realizes the technical effect of adjusting the charging and discharging power of the target charging pile according to the target carbon emission coefficient, and determining the target SGE for charging and discharging the target electric vehicle. Furthermore, it solves the technical problem in related technologies where adjusting the charging and discharging power of the charging pile generates a certain degree of carbon emission pollution. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0017] Figure 1 This is a flowchart of a charging and discharging power adjustment method for a charging pile according to an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of function calculation for the charge / discharge control circuit according to an embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the method when the DC-DC converter of this invention adopts constant power control mode;

[0020] Figure 4 This is a schematic diagram of a command charging / discharging power function in the case of a rechargeable and dischargeable electric vehicle battery according to an embodiment of the present invention;

[0021] Figure 5This is a structural block diagram of a charging and discharging power adjustment device for a charging pile according to an embodiment of the present invention. Detailed Implementation

[0022] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0023] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0024] Example 1

[0025] According to an embodiment of the present invention, an embodiment of a charging and discharging power adjustment method for a charging pile is provided. It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable requests. Furthermore, although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than that shown here.

[0026] Figure 1 This is a flowchart of a charging and discharging power adjustment method for a charging pile according to an embodiment of the present invention, as shown below. Figure 1 As shown, the method includes the following steps:

[0027] Step S102: Receive target power state control request, wherein the target power state control request includes charging state control request and discharging state control request.

[0028] In step S102 provided in this application, the target power state control request includes a charging state control request and a discharging state control request. The charging state control request and the discharging state control request can be different request types for controlling the power state of the energy storage device.

[0029] Charging status control requests can be based on the low battery level of the energy storage device, requiring charging to maintain normal operation; discharging status control requests can be based on the energy storage device consuming power or an external device needing to obtain excess power from the energy storage device; the energy storage device in this step can be an electric vehicle, and the external device can be a charging pile, which can be adaptively set according to the specific type, application, and scenario.

[0030] It should be noted that, based on actual needs, the power status of the energy storage device can be controlled by sending corresponding requests to achieve charging or discharging operations.

[0031] Step S104: In response to the target power state control request, obtain the change in the power carbon emission coefficient in the predetermined power grid, the historical power carbon emission coefficient, the target power carbon emission coefficient, the target power state control characteristic parameters corresponding to the target charging pile, and the target battery capacity corresponding to the target electric vehicle. The target electric vehicle is connected to the target charging pile. The historical power carbon emission coefficient includes multiple power carbon emission coefficients within a predetermined time period obtained from the predetermined power grid. The target power carbon emission coefficient is the power carbon emission coefficient corresponding to a predetermined time moment obtained from the predetermined power grid.

[0032] In step S104 provided in this application, the change in the aforementioned electricity carbon emission coefficient is the amount of carbon emissions generated by consuming electricity per unit time. The target power state control parameter corresponding to the target charging pile can be used to define and adjust the behavior and performance of the charging and discharging strategy to meet specific needs and objectives. The value range of the target power state control parameter can be between 0 and 1, which is not limited here and can be set according to the actual application scenario and the actual design of the charging pile.

[0033] Step S106: Based on the target energy state characteristic parameters and the target battery capacity, determine the energy state power curve corresponding to the target charging pile.

[0034] In step S106 provided in this application, the target battery capacity is the battery capacity corresponding to the target electric vehicle battery, and the state of energy power curve corresponding to the target charging pile can characterize the rate of change of the target state of energy power. That is, the slope of the state of energy power curve can indicate the rate of change of the charging and discharging power of the target charging pile during the charging and discharging process.

[0035] In the steps described above, the target state of power curve corresponding to the target charging pile is determined based on the determined target state of power characteristic parameters and the target battery capacity.

[0036] Step S108: Based on the power state curve, the change in the power carbon emission coefficient, the historical power carbon emission coefficient, and the target power carbon emission coefficient, determine the target power state corresponding to the target charging pile.

[0037] In step S108 provided in this application, the aforementioned target power state refers to the charging and discharging power of the energy storage device (target electric vehicle) in the power system at a specific moment. It can be expressed as a positive value or a negative value, depending on whether the target power state control request is a charging state control request or a discharging state control request, that is, whether it is in a charging state or a discharging state.

[0038] It's important to note that a positive target state of energy (SGE) indicates the energy storage device is charging, while a negative SGE indicates it's discharging. For example, when an electric vehicle (EV) is connected to a charging station, its SGE is positive, meaning the battery is absorbing energy and charging. When the EV is in motion, it releases energy to drive the motor, resulting in a negative SGE, indicating it's discharging back to the grid. By monitoring and controlling the SGE, the charging and discharging process of the energy storage device (target charging station) can be adjusted and optimized to meet user needs. Throughout this process, both charging and discharging involve the EV's battery, allowing for convenient and effective allocation of the energy storage capacity of a large number of batteries in the system, thus enabling participation in demand response.

[0039] Step S110: Send a target power state control command to the target charging pile so that when the target power state control request is a charging state control request, the target charging pile is controlled to charge the target electric vehicle at the target power state power; when the target power state control request is a discharging state control request, the target charging pile is controlled to receive the electricity released by the target electric vehicle at the target power state power.

[0040] In step S110 of this application, based on the implementation method of the aforementioned steps, assuming it is necessary to send a charging control command to the target electric vehicle to achieve target energy state control, such as charging the target electric vehicle to a specific target energy state, the user sets the target energy state according to their needs, for example, to 80% battery capacity. Then, the user sends a charging control command to the target charging station, requesting that the target electric vehicle be charged to the target energy state, and specifies the target energy state power as an appropriate charging power. Upon receiving the charging control command, the target charging station begins charging the target electric vehicle according to the specified target energy state power. The charging station can adjust the charging power to achieve the expected charging rate, either fully charging the electric vehicle's battery or reaching the target energy state.

[0041] In the above scenario, the target electrical energy state is defined for charging a target electric vehicle at a target charging station. It is assumed that the user wishes to release excess electricity from the target electric vehicle and store it in the power grid for later use. First, the magnitude and time period of the released electricity are determined and designated as the target electrical energy state. The electric vehicle system then sends a discharge control command to the target charging station, requesting the release of electricity from the target electric vehicle into the power grid. You provide the discharge request and specify the appropriate discharge power for the target electrical energy state. During the discharge process, the charging station and the electric vehicle system can monitor the electric vehicle's electrical energy state and discharge amount in real time. Once the charging process corresponding to the target electrical energy state is reached, or the discharge process ends, the charging station stops receiving electricity and feeds back the relevant information to the electric vehicle system and the power grid management system.

[0042] The above scenario is a specific application scenario for the charging and discharging control of electric vehicles. In actual situations, more technical details and safety considerations may be involved. Further technical details and implementation processes will not be described in detail here. Appropriate operations can be performed according to the actual application scenario.

[0043] Through the above steps S102-S110, a target power state control request is received, wherein the target power state control request includes a charging state control request and a discharging state control request. In response to the target power state control request, the change in the carbon emission coefficient of electricity in the predetermined power grid, the historical carbon emission coefficient of electricity, the target carbon emission coefficient of electricity, the target power state control characteristic parameters corresponding to the target charging pile, and the target battery capacity corresponding to the target electric vehicle are obtained. Then, based on the target power state characteristic parameters and the target battery capacity, the power state power curve corresponding to the target charging pile is determined. Next, based on the power state power curve, the change in the carbon emission coefficient of electricity, the historical carbon emission coefficient of electricity, and the target carbon emission coefficient of electricity, the target power state power corresponding to the target charging pile is determined. Finally, a target power state control command is sent to the target charging pile so that when the target power state control request is a charging state control request, the target charging pile is controlled to charge the target electric vehicle at the target power state; when the target power state control request is a discharging state control request, the target charging pile is controlled to receive the electricity released by the target electric vehicle at the target power state. This achieves the goal of providing the target electric vehicle with the target state of energy (SGE) for charging and discharging based on the charging and discharging power of the target charging pile. This realizes the technical effect of adjusting the charging and discharging power of the target charging pile according to the target carbon emission coefficient, and determining the target SGE for charging and discharging the target electric vehicle. Furthermore, it solves the technical problem in related technologies where adjusting the charging and discharging power of the charging pile generates a certain degree of carbon emission pollution.

[0044] The method described in this embodiment will be further described below.

[0045] As an optional embodiment, the target state of power (SOP) of the target charging pile is determined based on the SOP curve, the change in the power carbon emission coefficient, the historical power carbon emission coefficient, and the target power carbon emission coefficient. This includes: obtaining the rated maximum SOP of the target electric vehicle and the rated SOP of the target charging pile; determining the initial SOP of the target charging pile based on the SOP curve, the change in the power carbon emission coefficient, the historical power carbon emission coefficient, and the target power carbon emission coefficient; and determining the minimum SOP from the rated maximum SOP, the rated SOP, and the initial SOP as the target SOP of the target charging pile.

[0046] In this embodiment, before determining the target state of energy (SGE), the rated maximum SGE of the target electric vehicle is first obtained, including its rated maximum charging power and rated maximum discharging power. Additionally, the rated SGE of the target charging station is also obtained, similarly including its rated charging power and rated discharging power. Then, based on the SGE curve, the change in the electricity carbon emission coefficient, the historical electricity carbon emission coefficient, and the target electricity carbon emission coefficient, the initial SGE corresponding to the target charging station is determined. Finally, the determined initial SGE needs to be limited. This is achieved by comparing the initial SGE with the rated maximum SGE of the target electric vehicle and the rated SGE of the target charging station. If the initial SGE is less than both the rated maximum SGE of the target electric vehicle and the rated SGE of the target charging station, the initial SGE is used as the target SGE; otherwise, if the initial SGE is greater than the target SGE, the rated maximum SGE of the target electric vehicle is used as the target SGE, in order to enable charging and discharging operations for the target electric vehicle. In this embodiment, setting the rated maximum state of power of the target electric vehicle can, to a certain extent, fully consider the usage requirements of the electric vehicle battery itself, avoid overcharging or over-discharging the battery in a short period of time, and improve the reliability and durability of the battery.

[0047] As an optional embodiment, the initial state of power (SOP) of the target charging pile is determined based on the SOP curve, the change in the SOP, the historical SOP, and the target SOP. This includes: determining the historical average SOP, the historical maximum SOP, and the historical minimum SOP based on the historical SOP; and determining the initial SOP of the target charging pile based on the SOP curve, the change in the SOP, the historical average SOP, the historical maximum SOP, the historical minimum SOP, and the target SOP.

[0048] In this embodiment, determining the initial state of power (SOP) of the target charging pile involves calculating the historical average SOP, historical maximum SOP, and historical minimum SOP. Then, based on these coefficients, the SOP curve in this embodiment, the change in the SOP, and the target SOP, the initial SOP of the target charging pile is determined. The SOP curve in this step reflects the SOP that the power system can provide under different times and load conditions. By combining the target SOP with the target SOP, the charging and discharging power of the target charging pile can be adjusted to the maximum extent within the corresponding carbon emission period, thereby providing reasonable charging and discharging power for electric vehicles.

[0049] As an optional embodiment, the initial state of power (SOP) of the target charging pile is determined based on the SOP curve, the change in the electricity carbon emission coefficient, the historical average electricity carbon emission coefficient, the historical maximum electricity carbon emission coefficient, the historical minimum electricity carbon emission coefficient, and the target electricity carbon emission coefficient. This includes at least one of the following: when the target electricity carbon emission coefficient is greater than or equal to the historical maximum electricity carbon emission coefficient, the rated maximum SOP is determined as the initial SOP of the target charging pile; when the target electricity carbon emission coefficient is less than the historical maximum electricity carbon emission coefficient but greater than or equal to the sum of the coefficients of the historical average electricity carbon emission coefficient and the change in the electricity carbon emission coefficient, a first SOP is determined as the initial SOP of the target charging pile, wherein the first SOP is determined based on the rated maximum SOP curve, the change in the electricity carbon emission coefficient, the historical average electricity carbon emission coefficient, the historical maximum electricity carbon emission coefficient, the historical minimum electricity carbon emission coefficient, and the target electricity carbon emission coefficient. The carbon emission coefficient of the historical power maximum, the power state curve, and the target power carbon emission coefficient are determined. If the target power carbon emission coefficient is less than the sum of the coefficients, but greater than or equal to the coefficient difference between the historical average power carbon emission coefficient and the change in the power carbon emission coefficient, a predetermined value is determined as the initial power state power corresponding to the target charging pile. If the target power carbon emission coefficient is less than the coefficient difference, but greater than or equal to the historical power minimum carbon emission coefficient, a second power state power is determined as the initial power state power corresponding to the target charging pile. The second power state power is determined based on the rated power state power, the change in the power carbon emission coefficient, the historical average power carbon emission coefficient, the historical power minimum carbon emission coefficient, the power state curve, and the target power carbon emission coefficient. If the target power carbon emission coefficient is less than the historical power minimum carbon emission coefficient, the rated power state power is determined as the initial power state power corresponding to the target charging pile.

[0050] In this embodiment, it is assumed that the historical electricity carbon emission coefficients in the preceding steps are A, B, C, and D, and that the historical average electricity carbon emission coefficient corresponding to the historical extreme electricity carbon emission coefficient is E, i.e., (A+B+C+D) / 4, and the corresponding historical maximum electricity carbon emission coefficient is A, the corresponding historical minimum electricity carbon emission coefficient is D, the power state curve is m, the change in the electricity carbon emission coefficient is ΔC, and the target electricity carbon emission coefficient is F. The rated maximum power state of the target electric vehicle is set to P. max .

[0051] In this embodiment, the initial state power of the target charging pile is determined based on the different ranges in which the target carbon emission coefficient is located. The following is a detailed explanation of each case.

[0052] When the target power carbon emission factor F is greater than or equal to the historical power maximum carbon emission factor A, that is, when F ≥ A, the rated maximum power state P is determined. max The initial state power of electrical energy corresponding to the target charging pile.

[0053] When the target power carbon emission coefficient F is less than the historical maximum power carbon emission coefficient A, and is greater than or equal to the sum of the coefficients (E+ΔC) of the historical average power carbon emission coefficient E and the change in power carbon emission coefficient ΔC, that is, when (E+ΔC)≤F<A, the first state of power is determined as the initial state of power corresponding to the target charging pile.

[0054] When the target electricity carbon emission coefficient F is less than the coefficient and (E+ΔC), and is greater than or equal to the coefficient difference (E-ΔC) between the historical average electricity carbon emission coefficient E and the change in the electricity carbon emission coefficient ΔC, that is, when (E-ΔC)≤F<(E+ΔC), the predetermined value is determined to be the initial state power of the target charging pile.

[0055] When the target power carbon emission coefficient F is less than the coefficient difference (E-ΔC) and greater than or equal to the historical power minimum carbon emission coefficient D, that is, when D≤F<(E-ΔC), the second power state power is determined as the initial power state power corresponding to the target charging pile.

[0056] When the target power carbon emission coefficient F is less than the historical minimum power carbon emission coefficient D, that is, when F < D, the rated power of electrical energy is determined as the initial power of electrical energy corresponding to the target charging pile.

[0057] It should be noted that in the above embodiments, the initial state of power is reasonably adjusted based on the relative relationship between the target power carbon emission coefficient and the historical power carbon emission coefficient. This is equivalent to increasing the charging power of the charging piles during periods when the target power carbon emission coefficient is low, in order to meet the charging needs of electric vehicles. Conversely, the charging power of the charging piles can be reduced during periods when the target power carbon emission coefficient is high, which can effectively reduce carbon emissions to a certain extent.

[0058] As an optional embodiment, before determining the initial state of power corresponding to the target charging pile based on the power state curve, the change in the power carbon emission coefficient, the historical average power carbon emission coefficient, the historical maximum power carbon emission coefficient, the historical minimum power carbon emission coefficient, and the target power carbon emission coefficient, the method further includes: determining a first difference between the historical maximum power carbon emission coefficient and the target power carbon emission coefficient, a second difference between the historical maximum power carbon emission coefficient and the historical average power carbon emission coefficient, and a third difference between the second difference and the change in the power carbon emission coefficient, and determining the historical average power carbon emission coefficient and the power carbon emission coefficient... The fourth difference in the change of the emission coefficient, the fifth difference between the fourth difference and the target electricity carbon emission coefficient, and the sixth difference between the fourth difference and the historical electricity minimum carbon emission coefficient; determine the first ratio between the first difference and the third difference, and determine the second ratio between the fifth difference and the sixth difference; determine the first product of the rated maximum power in the state of energy and the first ratio under the target index, and determine the second product of the rated power in the state of energy and the second ratio under the target index, wherein the target index is determined based on the power in the state of energy curve; determine the difference between the first product and the rated maximum power in the state of energy as the first power in the state of energy, and determine the second product as the second power in the state of energy.

[0059] In this embodiment, based on the coefficients in the aforementioned assumption steps, the first difference between the historical maximum power carbon emission coefficient and the target power carbon emission coefficient in this example can be determined as (AF); the second difference between the historical maximum power carbon emission coefficient and the historical average power carbon emission coefficient is (AE); and the third difference between the second difference and the change in the power carbon emission coefficient is (AE-ΔC). The fourth difference between the historical average power carbon emission coefficient and the change in the power carbon emission coefficient is determined as (E-ΔC), and the fifth difference between the fourth difference and the target power carbon emission coefficient is (E-ΔC-F). The sixth difference between the fourth difference and the historical minimum power carbon emission coefficient is (E-ΔC-D). The first ratio between the first and third differences is determined as (AF) / ((AE-ΔC)), and the second ratio between the fifth and sixth differences is determined as (E-ΔC-F) / (E-ΔC-D). The first product of the rated maximum power state and the first ratio under the target index is determined as P. max((AF) / (AED)) m And determine P as the second product of the rated power in the state of energy and the second proportion under the target index. max ((E-ΔC-F) / (E-ΔC-D)) m The target index term is determined as m based on the power state curve; the difference between the first product and the rated maximum power state is determined as the first power state power, i.e., the first power state power is P. max ((AF) / (AED)) m And determine the second product as the second state of energy power, that is, the second state of energy power is P. max ((E-ΔC-F) / (E-ΔC-D)) m .

[0060] As an optional embodiment, after sending the target power state control command to the target charging pile, the method further includes: determining the target carbon emissions generated by the target charging pile after executing the target power state control command; comparing the target carbon emissions with the preset carbon emissions to obtain a comparison result; and sending an alarm message to a predetermined terminal if the comparison result shows that the target carbon emissions are greater than the preset carbon emissions.

[0061] In this embodiment, based on the sent target power state control command, the target carbon emissions generated under the command are determined. The target carbon emissions are compared with the preset carbon emissions to obtain the corresponding comparison result. If the target carbon emissions are greater than the preset carbon emissions, it indicates that the target emissions have exceeded the expected range. At this time, an alarm message can be sent through a predetermined terminal. Relevant personnel can take corresponding measures to adjust the charging and discharging strategy of the target charging pile or take other measures to reduce carbon emissions based on the alarm message. The alarm message and related measures are not limited here and can be set according to specific application scenarios and needs.

[0062] As an optional embodiment, the power curve corresponding to the target charging pile is determined based on the target power state characteristic parameters and the target battery capacity. This includes: determining the seventh difference between a predetermined coefficient and the target power state characteristic parameters, the eighth difference between the predetermined coefficient and the target battery capacity, and the product of the target power state characteristic parameters and the target battery capacity; determining the third ratio of the product to the eighth difference; determining the sum of the seventh difference and the third ratio; and determining the power curve corresponding to the target charging pile based on the sum.

[0063] In this embodiment, assuming that the predetermined coefficient can be set to a constant 1, the target energy state characteristic parameter is set to k, and the target battery capacity is set to A, then for the seventh difference (1-k) and the eighth difference (1-A), the product of the target energy state characteristic parameter and the target battery capacity is k*A, the determined product and the third ratio of the eighth difference are k*A / (1-A), and the sum of the seventh difference and the third ratio is (1-k) / (k*A / (1-A)). That is, the sum of the determined seventh difference and the third ratio is the energy state power curve corresponding to the target charging pile.

[0064] It should be noted that in the above embodiments, the charging and discharging rate can be controlled according to the power state curve corresponding to the target charging pile, ensuring that the charging and discharging process proceeds normally within the tolerable range of the electric vehicle battery. By controlling the charging and discharging rate, excessive energy loss and heat generation can be effectively reduced, thereby improving the charging and discharging rate. Therefore, this method can effectively improve the stability and reliability of the battery.

[0065] Based on the above embodiments and optional embodiments, an optional implementation method is provided, which is described in detail below.

[0066] In related technologies, there is a technical problem that adjusting the charging and discharging power of charging piles can generate a certain degree of carbon emission pollution. For example, the methods for adjusting the charging and discharging power of charging piles in related technologies do not consider the carbon emission coefficient of electricity, ignore the relationship between the charging and discharging power of the charging pile and the carbon emission coefficient of electricity, and cannot adjust the charging and discharging power of the charging pile in a timely manner according to changes in the carbon emission coefficient of electricity, resulting in a certain degree of carbon emission pollution when adjusting the charging and discharging power.

[0067] In view of this, an optional embodiment of the present invention provides a method for adjusting the charging and discharging power of a charging pile. The optional embodiments of this application will be described in detail below.

[0068] S1. Obtain the change ΔC of the power carbon emission coefficient in the power grid, multiple power carbon emission coefficients C1, ... C(T) within the time period T, which are the historical power carbon emission coefficients (C1, ... C(T)), the target power carbon emission coefficient C(t) at time t, the target power state characteristic parameter k corresponding to the charging pile, and the target battery capacity SOC corresponding to the electric vehicle.

[0069] S2. Based on the target state of energy characteristic parameter k and the target battery capacity SOC, the state of energy power curve n corresponding to the charging pile is determined. The specific calculation process is as follows:

[0070] n = (1-k) + k·SOC / (1-SOC)

[0071] S3. Based on the power state curve n, the change in the power carbon emission coefficient ΔC, the historical power carbon emission coefficients (C1, ..., C(T)), and the target power carbon emission coefficient C(t), determine the target power state of the charging pile.

[0072] It should be noted that before determining the target state of power corresponding to the charging pile, it is necessary to first calculate the historical maximum carbon emission coefficient C corresponding to the historical electricity carbon emission coefficient (C1, ..., C(T)). max Historical minimum electricity carbon emission coefficient C min The historical average carbon emission coefficient of electricity (C1+C2…C(T)) / T is denoted as C. mean The system determines the rated maximum state-of-energy (POE) power of the electric vehicle, including the rated maximum discharge and maximum charge states, as well as the rated PEE power of the charging pile, including the rated charge and discharge states. Then, based on the historical maximum, minimum, and average carbon emission coefficients of electricity, the relative relationship with the target carbon emission coefficient is determined. Finally, based on this relative relationship, the target PEE power corresponding to the charging pile is determined. The specific implementation steps are as follows:

[0073]

[0074] In the above formula, This indicates the rated maximum discharge state power of the electric vehicle. P represents the rated maximum charging state power corresponding to the charging pile. * This indicates the target electrical state power.

[0075] In the above formula, when C(t)≥C max Under the condition that the target power in the electrical state is the rated maximum power in the electrical state; in C max >C(t)≥C mean Under the condition of +ΔC, ​​the target electrical state power is the first electrical state power; at C mean +ΔC>C(t)≥C mean Under the condition of -ΔC, the target electrical state power is a predetermined value, and at C mean -ΔC>C(t)≥C min Under the condition that the target electrical energy state power is the second electrical energy state power; in C min When the value is ≥C(t), the target electrical state power is the rated electrical state power.

[0076] It should be noted that when the target state of power is determined, the second state of power is represented as a positive value, the first state of power is represented as a negative value, and the change in the target state of power is limited to the rated charging state power of the charging pile and the rated maximum discharging state power of the electric vehicle.

[0077] Furthermore, the commanded charging / discharging power function is:

[0078] P * =f(C(t), SOC, P) c,rated P d，rated )

[0079] Where C(t) is the target carbon emission coefficient for electricity, and SOC is the target battery capacity of the electric vehicle; P c，rated P is the rated state-of-charge power of the charging pile. d，rated This refers to the rated discharge state power of the electric vehicle.

[0080] S4. Send a target power state control command to the charging pile so that when the target power state control request is a charging state control request, the charging pile is controlled to charge the electric vehicle at the target power state power, and when the target power state control request is a discharging state control request, the charging pile is controlled to receive the electricity released by the electric vehicle at the target power state power.

[0081] It should be noted that the execution of the method steps in S1-S4 above corresponds to... Figure 2 The diagram shown is a function calculation schematic of the charge / discharge control circuit of an embodiment of the present invention. In the diagram, P... v_max The maximum permissible rated state-of-energy power for electric vehicles, and the BMS (Battery Management System) for electric vehicles. Based on... Figure 2 The diagram shown illustrates the function calculation. Figure 3 The diagram shown illustrates a method for a DC-DC converter in constant power control mode according to an embodiment of the present invention. The energy storage device 5 (target electric vehicle) in the diagram refers to a device that uses electricity as input or output and has energy storage capabilities, such as electric vehicles, electric bicycles, various consumer electronics, and energy storage battery systems. The energy storage capacity parameters of the energy storage device 5 include battery state of charge (SOC) and rated maximum discharge state power (P). d，max And the rated state-of-charge power P of the DC charging device (target charging pile) c，max The output of the energy storage device 5 is connected to the control circuit 32 via standard communication methods such as electric vehicle DC charging pile interface and cable, power consumer product data cable and interface, and device communication cable and interface, so as to transmit power and information simultaneously.

[0082] The corresponding DC charging device can be used as a unidirectional charging pile, a bidirectional charging pile, a power adapter, and a power distribution device, etc. More specifically, the DC charging device and the corresponding energy storage device 5 form a combination, and such combinations can be connected to the DC bus 2 in various or multiple ways.

[0083] The control circuit 32 in the figure includes a power state curve calculation module 321 corresponding to the charging pile, a power carbon emission signal recording and calculation module 322, a limiting module 323, and a PWM wave modulation module 324. The control circuit 32 is used to set parameters according to the parameters set by the communication control device 1, the target power carbon emission coefficient of the power grid, the battery parameters of the electric vehicle 5, and the battery management system of the energy storage device 5, and through... Figure 2 Each calculation module shown determines the target electrical state power of the command and generates a PWM wave.

[0084] The power state curve calculation module 321 for the charging pile in the figure is used to calculate the power state curve for the charging pile based on the characteristic parameters of the standard function of the charging and discharging strategy set by the communication control device 2 and the battery power obtained from the energy storage device 5.

[0085] The electricity carbon emission signal recording and calculation module 322 in the figure is used to calculate the target electricity state power based on the power curve of the charging pile output by the instruction function calculation module, the target electricity carbon emission coefficient obtained from the power grid, and the rated charging power and rated discharging power of the DC charging and discharging device 3. The electricity carbon emission coefficient is a measure of the carbon emission coefficient corresponding to a unit of electricity consumption; more specifically, its unit can be kgCO2 / kWh.

[0086] The limiting module 323 in the figure is used to limit the power of the target state of energy according to the maximum rated charging power and the maximum rated discharging power allowed by the battery management system of the energy storage device 5.

[0087] The PWM modulation module 324 in the diagram is used to perform pulse width modulation on the limited signal to obtain the PWM wave input of the DC-DC converter 31, so that the DC-DC converter 31 controls the energy storage device 5 to charge or discharge according to the obtained PWM wave input. If the energy storage device 5 cannot provide the device's allowed maximum rated state of charge power and maximum allowed rated state of discharge power, the control circuit 32 does not include the limiting module 323. If the energy storage device 5 cannot provide the battery SOC or cannot transmit the battery SOC to the control circuit 32, the input battery SOC required for calculating the target state of power is set to a constant, such as 50%, according to the actual application scenario.

[0088] Based on the calculation modules given above, the charging pile in the preceding steps includes a DC bus 1, a communication control device 2, and a DC charging / discharging device 3. The DC charging / discharging device 3 includes a DC-DC converter 31 and a control circuit 32. The DC charging / discharging device 3 can be used as a bidirectional charging pile. The first output terminal of the communication control device 2 is connected to the first input terminal of the control circuit 32. The first output terminal of the power grid is connected to the third input terminal of the control circuit 32; the second output terminal of the power grid is connected to the input terminal of the DC bus 1. The output terminal of the DC bus 1 is connected to the first input terminal of the DC-DC converter 31. The second input terminal of the DC-DC converter 31 is connected to the output terminal of the control circuit 32. The third input terminal of the DC-DC converter 31 is connected to the first output terminal of the energy storage device 5. The second output terminal of the energy storage device 5 is connected to the second and fourth input terminals of the control circuit 32. The second output terminal of the DC-DC converter 31 is connected to the input terminal of the energy storage device 5. The DC-DC converter 31 is used to acquire the voltage of the DC bus 1 and the battery parameters of the energy storage device 5, and to control the charging or discharging of the energy storage device 5 using a constant power control mode based on the PWM wave generated by the control circuit 32. The control circuit 32 is used to determine the command target state power and generate a PWM wave by calculating the parameters set by the communication control device 1, the target power carbon emission coefficient of the power grid, the battery parameters of the energy storage device 5, and the battery management system settings of the energy storage device 5.

[0089] Execute the above steps according to the control instructions in step S4 above. Figure 4 This is a schematic diagram of a commanded charging / discharging power function in the case of a rechargeable and dischargeable electric vehicle battery according to an embodiment of the present invention. The steps described above are described in detail below:

[0090] Considering that different electric vehicles are connected to bidirectional charging piles with different target energy state characteristics, historical electricity carbon emission coefficients (ranging from 0 kgCO2 / kWh to 20 kgCO2 / kWh) are used.

[0091] When k=0, the charging / discharging power of the electric vehicle battery is not affected by the battery's state of charge (SOC) as the target power carbon emission coefficient changes. When the target power carbon emission coefficient is lower than the historical minimum carbon emission coefficient C... min When charging, the rated charging power of the charging pile or the rated maximum energy state power of the electric vehicle is used for charging. Here, C... min =0.2kgCO2 / kWh, with a maximum charging power of 6.6kW; when the target electricity carbon emission coefficient is at C min With C mean When the target carbon emission coefficient for electric vehicles is between -ΔC, the charging power decreases linearly with the increase of the target carbon emission coefficient for electricity; when the target carbon emission coefficient for electricity is between C... mean+ΔC and C mean When the target carbon emission coefficient is between -ΔC, charging or discharging is stopped, and the charging / discharging power is 0; when the target carbon emission coefficient of electricity is between C... max With C mean When the target power emission coefficient is between +ΔC and +ΔC, ​​the absolute value of the electric vehicle battery discharge power increases linearly with the target power carbon emission coefficient; when the target power carbon emission coefficient is higher than the historical maximum power carbon emission coefficient C, the absolute value of the discharge power increases linearly with the target power carbon emission coefficient. max At that time, the minimum value between the rated discharge power of the charging pile and the maximum allowable discharge power of the electric vehicle is used for discharge, where C is... max =1.8kgCO2 / kWh, with a maximum discharge power of -6.6kW.

[0092] When k = 0.5, the change in the charging / discharging power of the electric vehicle battery with the target power carbon emission coefficient is affected by the battery's state of charge (SOC). When the target power carbon emission coefficient is lower than the historical minimum power carbon emission coefficient C... min When charging, the rated charging power of the charging pile or the rated maximum energy state power of the electric vehicle is used for charging. Here, C... min =0.2kgCO2 / kWh, with a maximum charging power of 6.6kW; when the target electricity carbon emission coefficient is at C min With C mean When the target energy carbon emission coefficient is between -ΔC, the charging power of electric vehicle batteries decreases non-linearly with the target energy carbon emission coefficient; the higher the battery state of charge (SOC), the faster the decrease. When the target energy carbon emission coefficient is between C... mean +ΔC and C mean When the target carbon emission coefficient is between -ΔC, charging or discharging is stopped, and the charging / discharging power is 0; when the target carbon emission coefficient of electricity is between C... max With C mean When the voltage level is between +ΔC and +ΔC, ​​the absolute value of the discharge power of the electric vehicle battery increases non-linearly with the target power carbon emission coefficient. The higher the battery's state of charge (SOC), the faster the increase. When the target power carbon emission coefficient is higher than the historical maximum power carbon emission coefficient C... max At that time, the charging pile's rated discharge power or the electric vehicle's rated maximum energy state power is used for discharge, where C... max =1.8kgCO2 / kWh, with a maximum discharge power of -6.6kW.

[0093] When k=1, the charging / discharging power of the electric vehicle battery is more significantly affected by the battery's state of charge (SOC) as the target power carbon emission coefficient changes. When the target power carbon emission coefficient is lower than the historical minimum carbon emission coefficient C... min When charging, the rated charging power of the charging pile or the rated maximum energy state power of the electric vehicle is used for charging. Here, C... min=0.2kgCO2 / kWh, with a maximum charging power of 6.6kW; when the target electricity carbon emission coefficient is at C min With C mean When the battery charge is between +ΔC and +ΔC, ​​the charging power of electric vehicle batteries decreases non-linearly with the target carbon emission coefficient; the higher the battery's state of charge (SOC), the faster the decrease. When the target carbon emission coefficient is between C and +ΔC, ​​the charging power decreases non-linearly with the target carbon emission coefficient. mean +ΔC and C mean When the target carbon emission coefficient is between -ΔC, charging or discharging is stopped, and the charging / discharging power is 0; when the target carbon emission coefficient of electricity is between C... max With C mean When the voltage level is between +ΔC and +ΔC, ​​the absolute value of the discharge power of the electric vehicle battery increases non-linearly with the target power carbon emission coefficient. The higher the battery's state of charge (SOC), the faster the increase. When the target power carbon emission coefficient is higher than the historical maximum power carbon emission coefficient C... max At that time, the charging pile's rated discharge power or the electric vehicle's rated maximum energy state power is used for discharge, where C... max =1.8kgCO2 / kWh, with a maximum discharge power of -6.6kW.

[0094] The above optional implementation methods can achieve at least the following beneficial effects:

[0095] (1) Since the power state curve corresponding to the target charging pile is determined by the target battery capacity and the target power state characteristic parameters, the charging and discharging rate can be controlled by the determined target power state curve to ensure that the charging and discharging process is carried out normally within the range that the electric vehicle battery can withstand.

[0096] (2) Since the target power of the charging pile is calculated based on the relative relationship between the target power carbon emission coefficient and the historical power carbon emission coefficient, the target power of the charging pile can be reasonably adjusted according to the relative relationship. This is equivalent to increasing the charging power of the charging pile during periods when the target power carbon emission coefficient is low, thereby meeting the charging needs of electric vehicles. In addition, the charging power of the charging pile can be reduced during periods when the target power carbon emission coefficient is high, thereby effectively reducing carbon emissions to a certain extent.

[0097] It should be noted that, for the sake of simplicity, the foregoing method embodiments are all described as a series of actions. However, those skilled in the art should understand that the present invention is not limited to the described order of actions, because according to the present invention, some steps can be performed in other orders or simultaneously. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0098] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods according to the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes several requests to cause a terminal device (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods of the various embodiments of the present invention.

[0099] Example 2

[0100] According to embodiments of the present invention, an apparatus for implementing the above-described charging and discharging power adjustment method for charging piles is also provided. Figure 5 This is a structural block diagram of a charging and discharging power adjustment device for a charging pile according to an embodiment of the present invention, as shown below. Figure 2 As shown, the device includes: a receiving module 502, an acquisition module 504, a first determining module 506, a second determining module 508, and a sending module 510. The device will be described in detail below.

[0101] The receiving module 502 is used to receive a target power state control request, wherein the target power state control request includes a charging state control request and a discharging state control request.

[0102] The acquisition module 504, connected to the receiving module 502, is used to respond to the target power state control request to acquire the change in the power carbon emission coefficient in the predetermined power grid, the historical power carbon emission coefficient, the target power carbon emission coefficient, the target power state control characteristic parameters corresponding to the target charging pile, and the target battery capacity corresponding to the target electric vehicle. The target electric vehicle is connected to the target charging pile, the historical power carbon emission coefficient includes multiple power carbon emission coefficients within a predetermined time period obtained from the predetermined power grid, and the target power carbon emission coefficient is the power carbon emission coefficient corresponding to a predetermined time period obtained from the predetermined power grid.

[0103] The first determining module 506 is connected to the above-mentioned obtaining module 504 and is used to determine the power curve of the target charging pile based on the target power state characteristic parameters and the target battery capacity.

[0104] The second determining module 508 is connected to the first determining module 506 and is used to determine the target power state of the target charging pile based on the power state curve, the change in the power carbon emission coefficient, the historical power carbon emission coefficient, and the target power carbon emission coefficient.

[0105] The sending module 510, connected to the second determining module 508, is used to send a target power state control command to the target charging pile, so that when the target power state control request is a charging state control request, the target charging pile is controlled to charge the target electric vehicle at the target power state power, and when the target power state control request is a discharging state control request, the target charging pile is controlled to receive the electricity released by the target electric vehicle at the target power state power.

[0106] It should be noted that the receiving module 502, the obtaining module 504, the first determining module 506, the second determining module 508, and the sending module 510 mentioned above correspond to steps S102 to S110 in the method for adjusting the charging and discharging power of a charging pile. The multiple modules and the corresponding steps are the same in terms of the instances and application scenarios implemented, but are not limited to the content disclosed in the above embodiment 1.

[0107] Example 3

[0108] According to another aspect of the present invention, an electronic device is also provided, comprising: a processor; and a memory for storing processor-executable requests, wherein the processor is configured to execute the requests to implement the charging and discharging power adjustment method of the charging pile as described above.

[0109] Example 4

[0110] According to another aspect of the present invention, a computer-readable storage medium is also provided, which, when a request in the computer-readable storage medium is executed by a processor of an electronic device, enables the electronic device to perform the charging and discharging power adjustment method of any of the above-described charging piles.

[0111] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0112] In the above embodiments of the present invention, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0113] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units can be a logical functional division, and in actual implementation, there may be other division methods. For instance, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual coupling, direct coupling, or communication connection may be through some interfaces; the indirect coupling or communication connection between units or modules may be electrical or other forms.

[0114] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0115] Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0116] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several requests to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0117] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A method for adjusting the charging and discharging power of a charging pile, characterized in that, include: Receive a target power state control request, wherein the target power state control request includes a charging state control request and a discharging state control request; In response to the target power state control request, the following are obtained: the change in the power carbon emission coefficient in the predetermined power grid, the historical power carbon emission coefficient, the target power carbon emission coefficient, the target power state control characteristic parameters corresponding to the target charging pile, and the target battery capacity corresponding to the target electric vehicle. The target electric vehicle is connected to the target charging pile. The historical power carbon emission coefficient includes multiple power carbon emission coefficients obtained from the predetermined power grid within a predetermined time period. The target power carbon emission coefficient is the power carbon emission coefficient corresponding to a predetermined time obtained from the predetermined power grid. Based on the target energy state characteristic parameters and the target battery capacity, the energy state power curve corresponding to the target charging pile is determined; Based on the power state curve, the change in the power carbon emission coefficient, the historical power carbon emission coefficient, and the target power carbon emission coefficient, the target power state corresponding to the target charging pile is determined. Send a target power state control command to the target charging pile so that, when the target power state control request is the charging state control request, the target charging pile is controlled to charge the target electric vehicle at the target power state power; and when the target power state control request is the discharging state control request, the target charging pile is controlled to receive the electricity released by the target electric vehicle at the target power state power.

2. The method according to claim 1, characterized in that, The step of determining the target state of power (SOP) of the target charging pile based on the SOP curve, the change in the SOP, the historical SOP, and the target SOP includes: Obtain the rated maximum power of the target electric vehicle and the rated power of the target charging pile; Based on the power state curve, the change in the power carbon emission coefficient, the historical power carbon emission coefficient, and the target power carbon emission coefficient, the initial power state of the target charging pile is determined. The minimum state of power (SOP) is determined from the rated maximum SOP, the rated SOP, and the initial SOP, and is taken as the target SOP corresponding to the target charging pile.

3. The method according to claim 2, characterized in that, The determination of the initial state of power (SOP) of the target charging pile based on the SOP curve, the change in the carbon emission coefficient of electricity, the historical carbon emission coefficient of electricity, and the target carbon emission coefficient of electricity includes: Based on the historical electricity carbon emission coefficients, determine the historical average electricity carbon emission coefficient, the historical maximum electricity carbon emission coefficient, and the historical minimum electricity carbon emission coefficient. Based on the power state curve, the change in the power carbon emission coefficient, the historical average power carbon emission coefficient, the historical maximum power carbon emission coefficient, the historical minimum power carbon emission coefficient, and the target power carbon emission coefficient, the initial power state curve corresponding to the target charging pile is determined.

4. The method according to claim 3, characterized in that, The initial state of power (SOP) of the target charging pile is determined based on the SOP curve, the change in the carbon emission coefficient of electricity, the historical average carbon emission coefficient of electricity, the historical maximum carbon emission coefficient of electricity, the historical minimum carbon emission coefficient of electricity, and the target carbon emission coefficient of electricity, including at least one of the following: If the target power carbon emission coefficient is greater than or equal to the historical power maximum carbon emission coefficient, the rated maximum power state is determined to be the initial power state power corresponding to the target charging pile. If the target power carbon emission coefficient is less than the historical maximum power carbon emission coefficient, and is greater than or equal to the sum of the coefficients of the historical average power carbon emission coefficient and the change in the power carbon emission coefficient, the first power state power is determined as the initial power state power corresponding to the target charging pile. The first power state power is determined based on the rated maximum power state power, the change in the power carbon emission coefficient, the historical average power carbon emission coefficient, the historical maximum power carbon emission coefficient, the power state power curve, and the target power carbon emission coefficient. If the target power carbon emission coefficient is less than the sum of the coefficients, and is greater than or equal to the coefficient difference between the historical average power carbon emission coefficient and the change in the power carbon emission coefficient, a predetermined value is determined to be the initial state power of the target charging pile. When the target power carbon emission coefficient is less than the coefficient difference and greater than or equal to the historical power minimum carbon emission coefficient, the second power state power is determined as the initial power state power corresponding to the target charging pile. The second power state power is determined based on the rated power state power, the change in the power carbon emission coefficient, the historical power average carbon emission coefficient, the historical power minimum carbon emission coefficient, the power state power curve, and the target power carbon emission coefficient. If the target power carbon emission coefficient is less than the historical minimum power carbon emission coefficient, the rated power state is determined to be the initial power state of the target charging pile.

5. The method according to claim 4, characterized in that, Before determining the initial state of power corresponding to the target charging pile based on the state of power curve, the change in the power carbon emission coefficient, the historical average power carbon emission coefficient, the historical maximum power carbon emission coefficient, the historical minimum power carbon emission coefficient, and the target power carbon emission coefficient, the method further includes: The following steps are taken: First, determine the first difference between the historical maximum electricity carbon emission coefficient and the target electricity carbon emission coefficient; second, determine the second difference between the historical maximum electricity carbon emission coefficient and the historical average electricity carbon emission coefficient; third, determine the second difference between the second difference and the change in the electricity carbon emission coefficient; fourth, determine the fourth difference between the historical average electricity carbon emission coefficient and the change in the electricity carbon emission coefficient; fifth, determine the fourth difference between the fourth difference and the target electricity carbon emission coefficient; and sixth, determine the fourth difference between the fourth difference and the historical minimum electricity carbon emission coefficient. Determine a first ratio between the first difference and the third difference, and determine a second ratio between the fifth difference and the sixth difference; Determine the first product of the rated maximum power in the state of energy and the first proportion under the target index, and determine the second product of the rated power in the state of energy and the second proportion under the target index, wherein the target index is determined based on the power in the state of energy curve; The difference between the first product and the rated maximum state of power is determined as the first state of power, and the second product is determined as the second state of power.

6. The method according to claim 1, characterized in that, After sending the target power status control command to the target charging pile, the method further includes: Determine the target carbon emissions generated after the target charging pile executes the target power state control command; The target carbon emissions are compared with the preset carbon emissions to obtain the comparison results. If the comparison result shows that the target carbon emission is greater than the preset carbon emission, an alarm message is sent to a predetermined terminal.

7. The method according to any one of claims 1 to 6, characterized in that, The step of determining the power state curve corresponding to the target charging pile based on the target power state characteristic parameters and the target battery capacity includes: Determine the seventh difference between the predetermined coefficient and the target energy state characteristic parameter, the eighth difference between the predetermined coefficient and the target battery capacity, and the product of the target energy state characteristic parameter and the target battery capacity; Determine the third ratio between the product and the eighth difference; Determine the sum of the seventh difference and the third ratio; Based on the above, the power state curve corresponding to the target charging pile is determined.

8. A charging and discharging power adjustment device for a charging pile, characterized in that, include: A receiving module is used to receive a target power state control request, wherein the target power state control request includes a charging state control request and a discharging state control request. The acquisition module is used to, in response to the target power state control request, acquire the change in the power carbon emission coefficient in the predetermined power grid, the historical power carbon emission coefficient, the target power carbon emission coefficient, the target power state control characteristic parameters corresponding to the target charging pile, and the target battery capacity corresponding to the target electric vehicle. The target electric vehicle is connected to the target charging pile. The historical power carbon emission coefficient includes multiple power carbon emission coefficients within a predetermined time period obtained from the predetermined power grid. The target power carbon emission coefficient is the power carbon emission coefficient corresponding to a predetermined time moment obtained from the predetermined power grid. The first determining module is used to determine the power state curve corresponding to the target charging pile based on the target power state characteristic parameters and the target battery capacity. The second determining module is used to determine the target power state of the target charging pile based on the power state curve, the change in the power carbon emission coefficient, the historical power carbon emission coefficient, and the target power carbon emission coefficient. The sending module is used to send a target power state control command to the target charging pile, so that when the target power state control request is the charging state control request, the target charging pile is controlled to charge the target electric vehicle at the target power state power, and when the target power state control request is the discharging state control request, the target charging pile is controlled to receive the electricity released by the target electric vehicle at the target power state power.

9. An electronic device, characterized in that, include: processor; Memory used to store requests that the processor can execute; The processor is configured to execute the request to implement the charging and discharging power adjustment method for the charging pile as described in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that, When a request in the computer-readable storage medium is executed by the processor of an electronic device, the electronic device is enabled to perform the charging and discharging power adjustment method of the charging pile as described in any one of claims 1 to 7.

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