Energy control method and device, nonvolatile storage medium and computer device

Abstract

The application discloses an energy control method and device, a nonvolatile storage medium and computer equipment. The method comprises the following steps: acquiring the residual power in an energy storage battery and the first demand power of an electric vehicle connected with a direct-current charging pile; judging the size relationship between the residual power and the first demand power; and determining the power taking path of the direct-current charging pile and the power taking path of an alternating-current charging pile according to the size relationship. The application solves the technical problem that energy loss is caused by frequent AC / DC conversion when the power grid and the energy storage battery charge the direct-current charging pile and the alternating-current charging pile.

Description

Technical Field

[0001] This invention relates to the field of energy storage batteries, and more specifically, to an energy control method, apparatus, non-volatile storage medium, and computer device. Background Technology

[0002] With the development of new energy sources, energy storage batteries and charging piles are being widely constructed. Charging piles, as electrical devices, are mostly scattered in various locations. Currently, charging piles on the market include AC charging piles and DC charging piles. When charging an energy storage battery, an inverter is needed to convert the AC power from the power grid into DC power before it can supply power to the battery. Both the energy storage battery and the power grid can supply power to the charging pile.

[0003] Therefore, when the energy storage battery has sufficient power, the AC power in the grid will be converted into DC power through the converter to power the DC charging pile; when the energy storage battery has insufficient power, the DC power in the energy storage battery will be converted into AC power through the converter to power the AC charging pile. In this way, the current transmission path will cross at the converter, and each AC-DC conversion will generate energy loss, resulting in low energy utilization.

[0004] There is currently no effective solution to the above problems. Summary of the Invention

[0005] This invention provides an energy control method, apparatus, non-volatile storage medium, and computer equipment to at least solve the technical problem of energy loss caused by frequent AC / DC conversion when the power grid and energy storage battery charge DC and AC charging piles.

[0006] According to one aspect of the present invention, an energy control method is provided, comprising: acquiring the remaining power in an energy storage battery and the first power demand of an electric vehicle connected to a DC charging pile; determining the relationship between the remaining power and the first power demand; and determining the power supply path of the DC charging pile and the power supply path of the AC charging pile based on the relationship.

[0007] Optionally, the power supply path for the DC charging pile and the power supply path for the AC charging pile are determined based on the magnitude relationship, including: when the remaining power is less than the first required power, obtaining the initial discharge power of the energy storage battery and the first required power of the electric vehicle connected to the DC charging pile; determining whether the initial discharge power is less than the first required power; when the initial discharge power is less than the first required power, determining that the power supply path for the DC charging pile is from the energy storage battery and from the power grid, and determining that the power supply path for the AC charging pile is from the power grid.

[0008] Optionally, the above method further includes: when the initial discharge power is greater than or equal to the first required power, determining that the power supply path of the DC charging pile is to draw power from the energy storage battery, and determining that the power supply path of the AC charging pile is to draw power from the power grid; obtaining the real-time discharge power of the energy storage battery when charging the DC charging pile; and adjusting the power supply path of the DC charging pile to draw power from the energy storage battery and from the power grid when the real-time discharge power is less than the first required power.

[0009] Optionally, the power supply path for the DC charging pile and the power supply path for the AC charging pile are determined based on the magnitude relationship, including: when the remaining power is greater than the first required power, obtaining the initial discharge power of the energy storage battery, the first required power of the electric vehicle connected to the DC charging pile, and the second required power of the electric vehicle connected to the AC charging pile; determining whether the initial discharge power is greater than or equal to the sum of the first and second required power; when the initial discharge power is greater than or equal to the sum of the first and second required power, determining that the power supply path for the DC charging pile is to draw power from the energy storage battery, and determining that the power supply path for the AC charging pile is to draw power from the energy storage battery.

[0010] Optionally, the above method further includes: when the initial discharge power is less than the sum of the first required power and the second required power, obtaining the second required power of the electric vehicle connected to the AC charging pile; determining whether the remaining power is greater than or equal to the sum of the first required power and the second required power; when the remaining power is greater than or equal to the sum of the first required power and the second required power, determining that the power extraction path of the DC charging pile is to draw power from the energy storage battery, and determining that the power extraction path of the AC charging pile is to draw power from the energy storage battery.

[0011] Optionally, the above method further includes: if the remaining power is less than the sum of the first required power and the second required power, determining whether the initial discharge power is less than the first required power; if the initial discharge power is less than the first required power, determining that the power source path of the DC charging pile is to draw power from the energy storage battery, and determining that the power source path of the AC charging pile is to draw power from the power grid.

[0012] Optionally, the above method further includes: when the initial discharge power is greater than or equal to the first required power, determining that the power supply path of the DC charging pile is to draw power from the energy storage battery, and determining that the power supply path of the AC charging pile includes drawing power from the energy storage battery and drawing power from the power grid.

[0013] Optionally, the power supply path for the DC charging pile and the power supply path for the AC charging pile are determined according to the size relationship, including: when the size relationship is that the remaining power is equal to the first demand power, the power supply path for the DC charging pile is determined to be drawn from the energy storage battery, and the power supply path for the AC charging pile is determined to be drawn from the power grid.

[0014] According to another aspect of the present invention, an energy control device is also provided, comprising: an acquisition module for acquiring the remaining power in an energy storage battery and the first power demand of an electric vehicle connected to a DC charging pile; a judgment module for judging the relationship between the remaining power and the first power demand; and a determination module for determining the power supply path of the DC charging pile and the power supply path of the AC charging pile based on the relationship.

[0015] According to another aspect of the present invention, a non-volatile storage medium is also provided, the non-volatile storage medium including a stored program, wherein, when the program is running, it controls the device where the non-volatile storage medium is located to execute any of the above-described energy control methods.

[0016] According to another aspect of the present invention, a computer device is also provided, the computer device including a processor, the processor being configured to run a program, wherein the program executes any of the above-described energy control methods during runtime.

[0017] In this embodiment of the invention, an energy control method is adopted. By acquiring the remaining power in the energy storage battery and the first power demand of the electric vehicle connected to the DC charging pile, the relationship between the remaining power and the first power demand is determined. Based on the relationship, the power supply path of the DC charging pile and the power supply path of the AC charging pile are determined. This reduces the number of AC / DC conversions, thereby improving the energy utilization rate and solving the technical problem of energy loss caused by frequent AC / DC conversions when the power grid and energy storage battery charge DC and AC charging piles. Attached Figure Description

[0018] 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:

[0019] Figure 1 A hardware structure block diagram of a computer terminal for implementing an energy control method is shown.

[0020] Figure 2 This is a flowchart illustrating the energy control method provided according to an embodiment of the present invention;

[0021] Figure 3 This is a structural block diagram of an energy control device provided 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] According to an embodiment of the present invention, an energy control method embodiment 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 instructions. 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.

[0025] The method embodiment provided in Embodiment 1 of this application can be executed on a mobile terminal, computer terminal, or similar computing device. Figure 1 A hardware block diagram of a computer terminal for implementing an energy control method is shown. Figure 1 As shown, the computer terminal 10 may include one or more processors (shown as 102a, 102b, ..., 102n in the figure) (the processor may include, but is not limited to, a microprocessor MCU or a programmable logic device FPGA, etc.) and a memory 104 for storing data. In addition, it may also include: a display, an input / output interface (I / O interface), a universal serial bus (USB) port (which may be included as one of the ports of a BUS bus), a network interface, a power supply, and / or a camera. Those skilled in the art will understand that... Figure 1 The structure shown is for illustrative purposes only and does not limit the structure of the aforementioned electronic device. For example, computer terminal 10 may also include... Figure 1 The more or fewer components shown, or having the same Figure 1The different configurations shown.

[0026] It should be noted that the aforementioned one or more processors and / or other data processing circuits are generally referred to herein as "data processing circuits". These data processing circuits may be implemented wholly or partially as software, hardware, firmware, or any other combination thereof. Furthermore, the data processing circuits may be a single, independent processing module, or may be wholly or partially integrated into any other element in the computer terminal 10. As involved in the embodiments of this application, the data processing circuits serve as processor control (e.g., selection of a variable resistor termination path connected to an interface).

[0027] The memory 104 can be used to store software programs and modules of application software, such as the program instructions / data storage device corresponding to the energy control method in this embodiment of the invention. The processor executes various functional applications and data processing by running the software programs and modules stored in the memory 104, thereby realizing the energy control method of the application described above. The memory 104 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory 104 may further include memory remotely located relative to the processor, and these remote memories can be connected to the computer terminal 10 via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

[0028] The display may be, for example, a touchscreen liquid crystal display (LCD) that allows the user to interact with the user interface of the computer terminal 10.

[0029] Figure 2 This is a flowchart illustrating the energy control method provided according to an embodiment of the present invention, as shown below. Figure 2 As shown, the method includes the following steps:

[0030] Step S202: Obtain the remaining power in the energy storage battery and the first power demand of the electric vehicle connected to the DC charging pile.

[0031] In this step, the current remaining power in the energy storage battery can be obtained, and the power demand of the electric vehicles currently connected to the DC charging station can be obtained through the DC charging station. The first power demand obtained is the sum of the power demands of each electric vehicle connected to the DC charging station.

[0032] Step S204: Determine the relationship between the remaining power and the first required power.

[0033] In this step, the remaining power in the energy storage battery and the total power demand of the electric vehicle currently connected to the DC charging station are determined. This relationship includes situations where the remaining power is greater than the first power demand, the remaining power is equal to the first power demand, and the remaining power is less than the first power demand.

[0034] Step S206: Determine the power supply path for the DC charging pile and the power supply path for the AC charging pile based on their size relationships.

[0035] In this step, the power supply paths for the DC and AC charging stations are determined based on the relationship between the remaining battery power and the total power demand of the electric vehicles currently connected to the DC charging station. The DC charging station supplies power to the electric vehicles connected to it, and the AC charging station supplies power to the electric vehicles connected to it. Each electric vehicle is connected to only one charging station. Since the DC charging station requires DC power, using the battery power to charge it reduces energy loss. Therefore, the power supply paths for the DC and AC charging stations can be determined by judging the relationship between the remaining battery power and the initial power demand, minimizing the number of AC-DC conversions and thus reducing energy loss.

[0036] Through the above steps, the goal of reducing AC / DC conversion is achieved, thereby improving the technical effect of energy utilization. This solves the technical problem of energy loss caused by frequent AC / DC conversion when the power grid and energy storage batteries charge DC and AC charging piles.

[0037] As an optional embodiment, the power supply path of the DC charging pile and the power supply path of the AC charging pile are determined according to the size relationship, including: when the size relationship is that the remaining power is less than the first required power, obtaining the initial discharge power of the energy storage battery and the first required power of the electric vehicle connected to the DC charging pile; determining whether the initial discharge power is less than the first required power; when the initial discharge power is less than the first required power, determining that the power supply path of the DC charging pile is from the energy storage battery and from the power grid, and determining that the power supply path of the AC charging pile is from the power grid.

[0038] Optionally, since the energy storage battery provides DC power, and DC charging piles also require DC power, prioritizing the energy storage battery to power the DC charging pile can reduce energy loss and improve energy utilization. If the remaining charge in the energy storage battery is less than the power demand of the electric vehicles connected to the DC charging pile—meaning the battery's charge is insufficient to power all the electric vehicles connected—then it can be determined that the power grid will be used to power all the electric vehicles connected to the AC charging pile, and a portion of the power will still need to be supplied to the DC charging pile. Then, the current discharge power (initial discharge power) of the energy storage battery and the power demand of the electric vehicles connected to the DC charging pile can be obtained. The relationship between the discharge power and the initial power demand can be determined, and based on this relationship, the power extraction path for the DC charging pile can be planned more rationally.

[0039] If the discharge power is less than the initial required power, it proves that the current power supply from the energy storage battery to the DC charging pile is insufficient. Both the grid and the energy storage battery need to charge the DC charging pile simultaneously. Therefore, the power supply path for the DC charging pile is determined to be from the energy storage battery and from the grid. Here, the discharge power of the energy storage battery refers to its maximum discharge power. Since the discharge power of the energy storage battery is related to the amount of electricity stored in it, the maximum discharge power will decrease accordingly when the amount of electricity stored in the battery decreases. The initial discharge power is the maximum discharge power supported by the remaining electricity in the energy storage battery at the time of the current planning step. Specifically, the maximum discharge power of the energy storage battery is denoted as P. 储放max The first required power is denoted as P. 直 In P 储放max Less than P 直 In the case of P, the energy storage battery 储放max To power DC charging stations, AC power from the grid is converted to DC power by a converter (P). 储放max -P 直 It provides power to DC charging piles.

[0040] As an optional embodiment, the above method may further include the following steps: when the initial discharge power is greater than or equal to the first required power, determine that the power supply path of the DC charging pile is to draw power from the energy storage battery, and determine that the power supply path of the AC charging pile is to draw power from the power grid; obtain the real-time discharge power of the energy storage battery when charging the DC charging pile; when the real-time discharge power is less than the first required power, adjust the power supply path of the DC charging pile to draw power from the energy storage battery and from the power grid.

[0041] Optionally, if the initial discharge power of the energy storage battery is greater than or equal to the first required power of the DC charging pile, it proves that the current power supply of the energy storage battery to the DC charging pile can meet the needs of the DC charging pile. In this case, the energy storage battery can be used to charge the DC charging pile, while the power grid supplies power to the AC charging pile. However, since the discharge power of the energy storage battery is related to the amount of electricity stored in it, as the energy storage battery charges the DC charging pile, the amount of electricity stored in the battery decreases, and the maximum discharge power of the energy storage battery will decrease accordingly. At a certain moment, the power supply of the energy storage battery to the DC charging pile will not be able to meet the needs of the DC charging pile. Therefore, the real-time discharge power of the energy storage battery when charging the DC charging pile can be obtained. If the real-time discharge power is less than the first required power, the power supply path of the DC charging pile can be adjusted from drawing power from the energy storage battery to drawing power from both the energy storage battery and the power grid. The real-time discharge power of the energy storage battery is its maximum real-time discharge power during the charging process of the DC charging pile. Specifically, to obtain the real-time discharge power of the energy storage battery during the charging process of the DC charging pile, it is possible to set the maximum discharge power of the current energy storage battery to be obtained every two minutes, and to determine the relationship between the real-time discharge power and the first required power. If the real-time discharge power is less than the first required power, the discharge power of the energy storage battery cannot meet the needs of the DC charging pile. Therefore, the power supply path of the DC charging pile can be adjusted to draw power from both the energy storage battery and the power grid to meet the needs of the DC charging pile.

[0042] As an optional embodiment, determining the power supply path of the DC charging pile and the AC charging pile based on the magnitude relationship includes: when the remaining power is greater than the first required power, obtaining the initial discharge power of the energy storage battery, the first required power of the electric vehicle connected to the DC charging pile, and the second required power of the electric vehicle connected to the AC charging pile; determining whether the initial discharge power is greater than or equal to the sum of the first and second required power; and determining that the power supply path of the DC charging pile is to draw power from the energy storage battery and the power supply path of the AC charging pile is to draw power from the energy storage battery when the initial discharge power is greater than or equal to the sum of the first and second required power.

[0043] Optionally, since the energy in the energy storage battery is obtained during off-peak electricity prices, considering electricity costs, when the energy storage battery can meet the demand of the DC charging pile, both the DC and AC charging piles can be controlled to draw power from the energy storage battery. When the remaining power in the energy storage battery is greater than the first required power, the initial discharge power of the energy storage battery, the first required power of the electric vehicle connected to the DC charging pile, and the second required power of the electric vehicle connected to the AC charging pile are obtained. Then, the relationship between the initial discharge power and the sum of the first and second required powers is determined. If the initial discharge power is greater than or equal to the sum of the first and second required powers, it is determined that both the DC and AC charging piles draw power from the energy storage battery. Here, discharge power refers to the maximum discharge power of the energy storage battery. When the remaining power is greater than the first required power, it can be concluded that the energy in the energy storage battery can meet the power demand of the DC charging pile. By determining the relationship between the initial discharge power and the sum of the first and second required power, we can understand whether the discharge power of the energy storage battery can simultaneously meet the needs of both DC and AC charging piles. If the initial discharge power is greater than or equal to the sum of the first and second required power, it indicates that the energy storage battery can simultaneously meet the needs of both DC and AC charging piles. In this case, both DC and AC charging piles can be controlled to draw power from the energy storage battery. Controlling the AC charging pile to draw power from the energy storage battery takes into account the problem of excessively high electricity costs if the AC charging pile draws power from the grid during off-peak electricity prices. The energy in the energy storage battery is obtained from the grid during off-peak electricity prices, resulting in lower costs. Therefore, when the energy storage battery has sufficient charge, controlling the AC charging pile to draw power from the energy storage battery can reduce electricity costs.

[0044] As an optional embodiment, the above method may further include the following steps: when the initial discharge power is less than the sum of the first required power and the second required power, obtain the second required power of the electric vehicle connected to the AC charging pile; determine whether the remaining power is greater than or equal to the sum of the first required power and the second required power; when the remaining power is greater than or equal to the sum of the first required power and the second required power, determine that the power supply path of the DC charging pile is to draw power from the energy storage battery, and determine that the power supply path of the AC charging pile is to draw power from the energy storage battery.

[0045] Optionally, if the initial discharge power of the energy storage battery is less than the sum of the first and second required power, the required power of the electric vehicles connected to the AC charging pile is obtained as the second required power. Then, the relationship between the remaining power and the sum of the required power of the DC charging pile and the AC charging pile is determined. The obtained second required power is the sum of the required power of each electric vehicle connected to the AC charging pile. If the remaining power is greater than or equal to the sum of the required power, both the DC and AC charging piles are controlled to draw power from the energy storage battery. Since the remaining power in the energy storage battery is greater than the sum of the required power of the DC and AC charging piles, it can be determined that the power in the energy storage battery can simultaneously meet the power requirements of both the DC and AC charging piles. Considering that if the AC charging pile draws power from the grid during off-peak electricity prices, it would result in excessively high electricity costs, therefore, when the energy storage battery has sufficient power, both the DC and AC charging piles can be controlled to draw power from the energy storage battery, which can reduce energy loss and lower electricity costs.

[0046] Because the initial discharge power of the energy storage battery is less than the sum of the first and second power requirements, the battery's discharge power cannot meet the demands of both DC and AC charging stations. Therefore, the power output of both DC and AC charging stations can be reduced. Specifically, the total power requirement of the electric vehicle connected to the DC charging station is denoted as P. 直 The power demand of each electric vehicle connected to a DC charging station is denoted as P. 直n Where n is an integer representing the number of the DC charging station; the total power demand of the electric vehicles connected to the AC charging station is denoted as P. 交 The power demand of each electric vehicle connected to an AC charging station is denoted as P. 交m Where m is an integer representing the AC charging pile number. Then, the power controlled by the nth DC charging pile when charging the electric vehicle connected to it is... The power output of the m-th AC charging pile when charging the electric vehicle connected to it is controlled as follows:

[0047] As an optional embodiment, the above method may further include the following steps: if the remaining power is less than the sum of the first required power and the second required power, determine whether the initial discharge power is less than the first required power; if the initial discharge power is less than the first required power, determine that the power supply path of the DC charging pile is to draw power from the energy storage battery, and determine that the power supply path of the AC charging pile is to draw power from the power grid.

[0048] Optionally, if the remaining power in the energy storage battery is less than the sum of the first and second required power, the relationship between the initial discharge power of the energy storage battery and the first required power is determined. If the initial discharge power is less than the first required power, the DC charging pile can be controlled to draw power from the energy storage battery, while the AC charging pile draws power from the grid. Here, the initial discharge power of the energy storage battery refers to its maximum discharge power. The fact that the remaining power is less than the sum of the required power of the DC and AC charging piles indicates that the current in the energy storage battery cannot simultaneously meet the needs of both. Furthermore, if the initial discharge power of the energy storage battery is less than the first required power, it indicates that the current discharge power of the energy storage battery cannot meet the needs of the DC charging pile. In this case, although there is still remaining power in the energy storage battery after meeting the needs of the DC charging pile, because the maximum discharge power of the energy storage battery is low, it cannot charge the AC charging pile while simultaneously charging the DC charging pile. Therefore, the DC charging pile can be controlled to draw power from the energy storage battery, while the AC charging pile draws power from the grid. Moreover, the DC charging pile needs to reduce its power when charging the electric vehicle connected to it.

[0049] As an optional embodiment, the above method may further include the following steps: when the initial discharge power is greater than or equal to the first required power, determining that the power supply path of the DC charging pile is to draw power from the energy storage battery, and determining that the power supply path of the AC charging pile includes drawing power from the energy storage battery and drawing power from the power grid.

[0050] Optionally, if the initial discharge power of the energy storage battery is greater than or equal to the first required power, the DC charging pile can be controlled to draw power from the energy storage battery, and the AC charging pile can be controlled to draw power from both the energy storage battery and the power grid simultaneously. Here, the initial discharge power of the energy storage battery refers to its maximum discharge power. Because the remaining capacity of the energy storage battery is greater than the required power of the DC charging pile but less than the sum of the required power of the DC and AC charging piles, the energy storage battery can meet the power requirements of the DC charging pile while also providing some power to the AC charging pile. The remaining required power in the AC charging pile can then be obtained from the power grid. Specifically, the remaining capacity in the energy storage battery is Q. 储 The electricity demand of an electric vehicle connected to a DC charging station is Q. 直 The electricity demand of an electric vehicle connected to an AC charging station is Q. 交 Therefore, the amount of electricity provided by the energy storage battery to the DC charging pile is Q. 直 The amount of electricity provided to the AC charging station is Q. 储 -Q 直 The AC charging pile obtains Q amount of electricity from the power grid. 交 -(Q 储 -Q 直Furthermore, when the energy storage battery charges the AC charging station, the DC power needs to be converted into AC power by the converter. Therefore, the discharge power of the converter is P. 储放max -P 直 P 储放max P is the maximum discharge power of the energy storage battery. 直 The required power for an electric vehicle connected to a DC charging station, i.e., the first required power.

[0051] As an optional embodiment, the power supply path of the DC charging pile and the power supply path of the AC charging pile are determined according to the size relationship, including: when the size relationship is that the remaining power is equal to the first demand power, the power supply path of the DC charging pile is determined to be drawn from the energy storage battery, and the power supply path of the AC charging pile is determined to be drawn from the power grid.

[0052] Optionally, when the remaining power in the energy storage battery equals the initial power demand, the DC charging pile is controlled to draw power from the energy storage battery, and the AC charging pile is controlled to draw power from the power grid. Because when the remaining power equals the initial power demand, the current in the energy storage battery is sufficient to meet the needs of the DC charging pile, the energy storage battery only charges the DC charging pile, while the AC charging pile draws power from the power grid.

[0053] It should be noted that the energy control method provided by the present invention can enable the converter to perform only one type of current conversion at the same time, that is, to convert only the DC power in the energy storage battery into AC power for use by AC charging piles, or to convert only the AC power in the grid into DC power for use by DC charging piles. This can avoid the problem of energy crossover in the converter in related technologies.

[0054] 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.

[0055] Through the above description of the embodiments, those skilled in the art can clearly understand that the energy control method according to the above embodiments can be implemented by means of software plus necessary general-purpose hardware platform. Of course, it 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, 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 instructions to cause a terminal device (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods described in the various embodiments of the present invention.

[0056] According to an embodiment of the present invention, an energy control device for implementing the above-described energy control method is also provided. Figure 3 This is a structural block diagram of an energy control device provided according to an embodiment of the present invention, such as... Figure 3 As shown, the energy control device includes: an acquisition module 32, a judgment module 34, and a determination module 36. The energy control device will be described below.

[0057] The acquisition module 32 is used to acquire the remaining power in the energy storage battery and the first power demand of the electric vehicle connected to the DC charging pile.

[0058] The judgment module 34, connected to the acquisition module 32, is used to determine the relationship between the remaining power and the first required power.

[0059] The determination module 36, connected to the judgment module 34, is used to determine the power supply path of the DC charging pile and the power supply path of the AC charging pile based on the size relationship.

[0060] It should be noted that the acquisition module 32, judgment module 34, and determination module 36 mentioned above correspond to steps S202 to S206 in the embodiments. Multiple modules implement the same instances and application scenarios as their corresponding steps, but are not limited to the content disclosed in the above embodiments. It should also be noted that the above modules, as part of the device, can run on the computer terminal 10 provided in the embodiments.

[0061] Embodiments of the present invention may provide a computer device. Optionally, in this embodiment, the computer device may be located in at least one of a plurality of network devices in a computer network. The computer device includes a memory and a processor.

[0062] The memory can be used to store software programs and modules, such as the program instructions / modules corresponding to the energy control method and device in this embodiment of the invention. The processor executes various functional applications and data processing by running the software programs and modules stored in the memory, thereby realizing the aforementioned energy control method. The memory may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory may further include memory remotely located relative to the processor, and these remote memories can be connected to a computer terminal via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

[0063] The processor can access information and applications stored in the memory via a transmission device to perform the following steps: obtain the remaining power in the energy storage battery and the first power demand of the electric vehicle connected to the DC charging pile; determine the relationship between the remaining power and the first power demand; and determine the power supply path of the DC charging pile and the power supply path of the AC charging pile based on the relationship.

[0064] Optionally, the processor may also execute program code for the following steps: determining the power supply path of the DC charging pile and the power supply path of the AC charging pile based on the size relationship, including: when the size relationship is that the remaining power is less than the first required power, obtaining the initial discharge power of the energy storage battery and the first required power of the electric vehicle connected to the DC charging pile; determining whether the initial discharge power is less than the first required power; when the initial discharge power is less than the first required power, determining that the power supply path of the DC charging pile is from the energy storage battery and from the power grid, and determining that the power supply path of the AC charging pile is from the power grid.

[0065] Optionally, the processor may also execute program code for the following steps: when the initial discharge power is greater than or equal to the first required power, determine that the power supply path of the DC charging pile is from the energy storage battery, and determine that the power supply path of the AC charging pile is from the power grid; obtain the real-time discharge power of the energy storage battery when charging the DC charging pile; when the real-time discharge power is less than the first required power, adjust the power supply path of the DC charging pile to be from the energy storage battery and from the power grid.

[0066] Optionally, the processor may also execute program code for the following steps: determining the power supply path of the DC charging pile and the power supply path of the AC charging pile based on the size relationship, including: when the remaining power is greater than the first required power, obtaining the initial discharge power of the energy storage battery, the first required power of the electric vehicle connected to the DC charging pile, and the second required power of the electric vehicle connected to the AC charging pile; determining whether the initial discharge power is greater than or equal to the sum of the first required power and the second required power; when the initial discharge power is greater than or equal to the sum of the first required power and the second required power, determining that the power supply path of the DC charging pile is to draw power from the energy storage battery, and determining that the power supply path of the AC charging pile is to draw power from the energy storage battery.

[0067] Optionally, the processor may also execute program code for the following steps: when the initial discharge power is less than the sum of the first required power and the second required power, obtain the second required power of the electric vehicle connected to the AC charging pile; determine whether the remaining power is greater than or equal to the sum of the first required power and the second required power; when the remaining power is greater than or equal to the sum of the first required power and the second required power, determine that the power supply path of the DC charging pile is to draw power from the energy storage battery, and determine that the power supply path of the AC charging pile is to draw power from the energy storage battery.

[0068] Optionally, the processor may also execute program code for the following steps: if the remaining power is less than the sum of the first required power and the second required power, determine whether the initial discharge power is less than the first required power; if the initial discharge power is less than the first required power, determine that the power source for the DC charging pile is the energy storage battery, and determine that the power source for the AC charging pile is the power grid.

[0069] Optionally, the processor may also execute program code for the following steps: when the initial discharge power is greater than or equal to the first required power, determine that the power supply path of the DC charging pile is from the energy storage battery, and determine that the power supply path of the AC charging pile includes both from the energy storage battery and from the power grid.

[0070] Optionally, the processor may also execute program code that performs the following steps: determining the power supply path of the DC charging pile and the power supply path of the AC charging pile based on the size relationship, including: determining that the power supply path of the DC charging pile is to draw power from the energy storage battery when the size relationship is that the remaining power is equal to the first required power, and determining that the power supply path of the AC charging pile is to draw power from the power grid.

[0071] This invention provides an energy control method that obtains the remaining power in the energy storage battery and the first power demand of the electric vehicle connected to the DC charging pile; determines the relationship between the remaining power and the first power demand; and determines the power supply path for the DC charging pile and the power supply path for the AC charging pile based on the relationship. This reduces the AC / DC conversion, thereby improving energy utilization and solving the technical problem of energy loss caused by frequent AC / DC conversion when the power grid and energy storage battery charge DC and AC charging piles.

[0072] Those skilled in the art will understand that all or part of the steps in the various methods of the above embodiments can be implemented by a program instructing the hardware related to the terminal device. The program can be stored in a non-volatile storage medium, which may include: flash drive, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk, etc.

[0073] Embodiments of the present invention also provide a non-volatile storage medium. Optionally, in this embodiment, the aforementioned non-volatile storage medium can be used to store the program code executed by the energy control method provided in the above embodiments.

[0074] Optionally, in this embodiment, the non-volatile storage medium may be located in any computer terminal in a group of computer terminals in a computer network, or in any mobile terminal in a group of mobile terminals.

[0075] Optionally, in this embodiment, the non-volatile storage medium is configured to store program code for performing the following steps: obtaining the remaining power in the energy storage battery and the first power demand of the electric vehicle connected to the DC charging pile; determining the relationship between the remaining power and the first power demand; and determining the power supply path of the DC charging pile and the power supply path of the AC charging pile based on the relationship.

[0076] Optionally, in this embodiment, the non-volatile storage medium is configured to store program code for performing the following steps: determining the power supply path of the DC charging pile and the power supply path of the AC charging pile according to the size relationship, including: when the size relationship is that the remaining power is less than the first required power, obtaining the initial discharge power of the energy storage battery and the first required power of the electric vehicle connected to the DC charging pile; determining whether the initial discharge power is less than the first required power; when the initial discharge power is less than the first required power, determining that the power supply path of the DC charging pile is from the energy storage battery and from the power grid, and determining that the power supply path of the AC charging pile is from the power grid.

[0077] Optionally, in this embodiment, the non-volatile storage medium is configured to store program code for performing the following steps: further including: when the initial discharge power is greater than or equal to the first required power, determining that the power supply path of the DC charging pile is to draw power from the energy storage battery, and determining that the power supply path of the AC charging pile is to draw power from the power grid; acquiring the real-time discharge power of the energy storage battery when charging the DC charging pile; and adjusting the power supply path of the DC charging pile to draw power from the energy storage battery and from the power grid when the real-time discharge power is less than the first required power.

[0078] Optionally, in this embodiment, the non-volatile storage medium is configured to store program code for performing the following steps: determining the power supply path of the DC charging pile and the power supply path of the AC charging pile according to the size relationship, including: when the size relationship is that the remaining power is greater than the first required power, obtaining the initial discharge power of the energy storage battery, the first required power of the electric vehicle connected to the DC charging pile, and the second required power of the electric vehicle connected to the AC charging pile; determining whether the initial discharge power is greater than or equal to the sum of the first required power and the second required power; when the initial discharge power is greater than or equal to the sum of the first required power and the second required power, determining that the power supply path of the DC charging pile is to draw power from the energy storage battery, and determining that the power supply path of the AC charging pile is to draw power from the energy storage battery.

[0079] Optionally, in this embodiment, the non-volatile storage medium is configured to store program code for performing the following steps: when the initial discharge power is less than the sum of the first required power and the second required power, obtain the second required power of the electric vehicle connected to the AC charging pile; determine whether the remaining power is greater than or equal to the sum of the first required power and the second required power; when the remaining power is greater than or equal to the sum of the first required power and the second required power, determine that the power supply path of the DC charging pile is to draw power from the energy storage battery, and determine that the power supply path of the AC charging pile is to draw power from the energy storage battery.

[0080] Optionally, in this embodiment, the non-volatile storage medium is configured to store program code for performing the following steps: when the remaining power is less than the sum of the first required power and the second required power, determine whether the initial discharge power is less than the first required power; when the initial discharge power is less than the first required power, determine that the power supply path of the DC charging pile is to draw power from the energy storage battery, and determine that the power supply path of the AC charging pile is to draw power from the power grid.

[0081] Optionally, in this embodiment, the non-volatile storage medium is configured to store program code for performing the following steps: when the initial discharge power is greater than or equal to the first required power, determining that the power supply path of the DC charging pile is to draw power from the energy storage battery, and determining that the power supply path of the AC charging pile includes drawing power from the energy storage battery and drawing power from the power grid.

[0082] Optionally, in this embodiment, the non-volatile storage medium is configured to store program code for performing the following steps: determining the power supply path of the DC charging pile and the power supply path of the AC charging pile according to the size relationship, including: determining that the power supply path of the DC charging pile is to draw power from the energy storage battery when the size relationship is that the remaining power is equal to the first demand power, and determining that the power supply path of the AC charging pile is to draw power from the power grid.

[0083] 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.

[0084] 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.

[0085] 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.

[0086] 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.

[0087] 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.

[0088] 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 non-volatile 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 instructions 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.

[0089] 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. An energy control method, characterized in that, include: To obtain the remaining power in the energy storage battery, and the initial power demand of the electric vehicle connected to the DC charging station; Determine the relationship between the remaining power and the first required power; Based on the aforementioned size relationship, the power supply path for the DC charging pile and the power supply path for the AC charging pile are determined. Specifically, determining the power supply path for the DC charging pile and the AC charging pile based on the magnitude relationship includes: when the remaining power is less than the first required power, obtaining the initial discharge power of the energy storage battery and the first required power of the electric vehicle connected to the DC charging pile; determining whether the initial discharge power is less than the first required power; when the initial discharge power is less than the first required power, determining that the power supply path for the DC charging pile is a combination of power from the energy storage battery and power from the grid, and determining that the power supply path for the AC charging pile is only power from the grid; when the remaining power is greater than the first required power, obtaining the second required power of the electric vehicle connected to the AC charging pile; determining whether the initial discharge power is greater than or equal to the sum of the first required power and the second required power; when the initial discharge power is greater than or equal to the sum of the first required power and the second required power, determining that the power supply path for the DC charging pile is power from the energy storage battery, and determining that the power supply path for the AC charging pile is power from the energy storage battery.

2. The method according to claim 1, characterized in that, Also includes: If the initial discharge power is greater than or equal to the first required power, the power supply path of the DC charging pile is determined to be from the energy storage battery, and the power supply path of the AC charging pile is determined to be from the power grid. Obtain the real-time discharge power of the energy storage battery when it charges the DC charging pile; If the real-time discharge power is less than the first required power, the power supply path of the DC charging pile is adjusted to draw power from the energy storage battery and from the power grid.

3. The method according to claim 1, characterized in that, Also includes: If the initial discharge power is less than the sum of the first required power and the second required power, the second required power of the electric vehicle connected to the AC charging pile is obtained; Determine whether the remaining power is greater than or equal to the sum of the first required power and the second required power; If the remaining power is greater than or equal to the sum of the first required power and the second required power, the power supply path of the DC charging pile is determined to be from the energy storage battery, and the power supply path of the AC charging pile is determined to be from the energy storage battery.

4. The method according to claim 3, characterized in that, Also includes: If the remaining power is less than the sum of the first required power and the second required power, determine whether the initial discharge power is less than the first required power. If the initial discharge power is less than the first required power, the power supply path of the DC charging pile is determined to be drawn from the energy storage battery, and the power supply path of the AC charging pile is determined to be drawn from the power grid.

5. The method according to claim 4, characterized in that, Also includes: If the initial discharge power is greater than or equal to the first required power, the power supply path of the DC charging pile is determined to be from the energy storage battery, and the power supply path of the AC charging pile is determined to include both from the energy storage battery and from the power grid.

6. The method according to any one of claims 1 to 5, characterized in that, Determining the power supply path for the DC charging pile and the AC charging pile based on the size relationship includes: When the remaining power is equal to the first required power, the power source for the DC charging pile is determined to be the energy storage battery, and the power source for the AC charging pile is determined to be the power grid.

7. An energy control device, characterized in that, include: The acquisition module is used to acquire the remaining power in the energy storage battery and the first power demand of the electric vehicle connected to the DC charging pile. The judgment module is used to determine the relationship between the remaining power and the first required power. The determining module is used to determine the power supply path of the DC charging pile and the power supply path of the AC charging pile based on the size relationship. The determining module is further configured to: obtain the initial discharge power of the energy storage battery and the first required power of the electric vehicle connected to the DC charging pile when the remaining power is less than the first required power; determine whether the initial discharge power is less than the first required power; when the initial discharge power is less than the first required power, determine that the power extraction path of the DC charging pile is a combination of power extraction from the energy storage battery and power extraction from the grid, and determine that the power extraction path of the AC charging pile is only power extraction from the grid; obtain the second required power of the electric vehicle connected to the AC charging pile when the remaining power is greater than the first required power; determine whether the initial discharge power is greater than or equal to the sum of the first required power and the second required power; when the initial discharge power is greater than or equal to the sum of the first required power and the second required power, determine that the power extraction path of the DC charging pile is power extraction from the energy storage battery, and determine that the power extraction path of the AC charging pile is power extraction from the energy storage battery.

8. A non-volatile storage medium, characterized in that, The non-volatile storage medium includes a stored program, wherein, when the program is executed, it controls the device containing the non-volatile storage medium to perform the energy control method according to any one of claims 1 to 6.

9. A computer device, characterized in that, include: Memory and processor The memory stores computer programs; The processor is configured to execute a computer program stored in the memory, wherein when the computer program is executed, the processor performs the energy control method according to any one of claims 1 to 6.

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