Method and device for rapidly evaluating balance point of capacity utilization rate of charging pile

Abstract

The invention relates to the technical field of charging station operation evaluation, and particularly provides a rapid evaluation method and device for a balance point of the capacity utilization rate of a charging pile, and the method comprises the steps: determining the annual profit of the charging pile based on the annual income and annual cost of the charging pile; drawing a curve corresponding to the annual profit in a pre-constructed coordinate system, and taking a charging pile capacity utilization rate corresponding to an intersection point of the curve and a transverse axis in the pre-constructed coordinate system as a charging pile capacity utilization rate balance point; wherein the pre-constructed coordinate system takes the capacity utilization rate of the charging pile as a transverse axis and the annual profit as a longitudinal axis. According to the technical scheme provided by the invention, sensitivity analysis and multi-scene simulation are realized, different working conditions can be adapted, the evaluation result can be quickly obtained, and the planning decision efficiency is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of charging station operation evaluation technology, specifically to a rapid evaluation method and device for the balance point of charging pile capacity utilization. Background Technology In recent years, the new energy vehicle industry has developed rapidly, and the charging service industry has become a focus of social attention. Upstream and downstream companies in the industry have invested in, deployed, and operated charging facilities, resulting in a large number of market participants and fierce industry competition.

[0002] Meanwhile, the utilization rate of charging facilities remains low, and the return on investment in charging stations is falling short of expectations, resulting in overall losses for the industry. To effectively promote the scientific and rational layout of charging facilities and achieve precise and effective investment, it is necessary to quickly assess the investment and operational effectiveness of charging stations, providing a solid basis for industry players to make investment decisions regarding charging facilities. Summary of the Invention

[0003] To overcome the above-mentioned shortcomings, this invention proposes a rapid evaluation method and device for the balance point of charging pile capacity utilization.

[0004] Firstly, a rapid assessment method for the equilibrium point of charging pile capacity utilization is provided, the rapid assessment method for the equilibrium point of charging pile capacity utilization includes: The annual profit of a charging station is determined based on its annual revenue and annual cost. Plot the curve corresponding to the annual profit in a pre-built coordinate system, and take the charging pile capacity utilization rate corresponding to the intersection of the curve and the horizontal axis in the pre-built coordinate system as the charging pile capacity utilization balance point. The pre-constructed coordinate system uses the charging pile capacity utilization rate as the horizontal axis and annual profit as the vertical axis.

[0005] Preferably, the annual revenue of the charging pile is as follows: TR(L) = G * P * L * 365 * 24 * η In the above formula, TR(L) is the annual revenue of the charging pile, G is the unit gross profit margin, P is the rated power of the charging pile, L is the capacity utilization rate of the charging pile, and η is the operating efficiency of the charging pile after considering line loss.

[0006] Furthermore, the range of the charging pile operating efficiency after considering line loss is 90%~97%.

[0007] Furthermore, the annual cost of the charging pile is as follows: TC(L) = FC + VC(L) In the above formula, TC(L) is the annual cost of the charging pile, FC is the fixed cost of the charging pile, and VC(L) is the variable cost of the charging pile.

[0008] Furthermore, the fixed costs of the charging pile are as follows: FC = C_invest + C_loss + C_om In the above formula, C_invest is the annual investment amortization cost, C_loss is the annual loss cost, and C_om is the annual operation and maintenance cost.

[0009] Furthermore, the variable costs of the charging pile are as follows: VC(L)=C_elec*P*L*365*24*(1-η) In the above formula, C_elec represents the cost per kilowatt-hour of electricity.

[0010] Furthermore, the annual profit of the charging pile is as follows: TP(L) = TR(L) - TC(L) In the above formula, TP(L) represents the annual profit of the charging pile.

[0011] Furthermore, after taking the charging pile capacity utilization rate corresponding to the intersection of the curve and the horizontal axis in the pre-constructed coordinate system as the charging pile capacity utilization equilibrium point, the following steps are included: The minimum utilization rate required to achieve a balance in charging pile capacity utilization is determined by the following formula: L_be = (C_invest + C_loss + C_om) / {[(G * η -C_elec * (1-η)] * P *365 * 24} In the above formula, L_be is the minimum utilization rate required to achieve a balance in the capacity utilization of the charging pile.

[0012] Secondly, a rapid assessment device for the equilibrium point of charging pile capacity utilization is provided, the rapid assessment device for the equilibrium point of charging pile capacity utilization includes: The determination module is used to determine the annual profit of a charging station based on its annual revenue and annual cost. The analysis module is used to plot the curve corresponding to the annual profit in a pre-built coordinate system, and to take the charging pile capacity utilization rate corresponding to the intersection of the curve and the horizontal axis in the pre-built coordinate system as the charging pile capacity utilization balance point. The pre-constructed coordinate system uses the charging pile capacity utilization rate as the horizontal axis and annual profit as the vertical axis.

[0013] Thirdly, a computer device is provided, comprising: one or more processors; The processor is used to execute one or more programs; When the one or more programs are executed by the one or more processors, the method for quickly evaluating the balance point of charging pile capacity utilization is implemented.

[0014] Fourthly, a computer-readable storage medium is provided, on which a computer program is stored, wherein when the computer program is executed, a method for rapidly evaluating the capacity utilization balance point of the charging pile is implemented.

[0015] The above-described technical solutions of the present invention have at least one or more of the following beneficial effects: This invention provides a rapid assessment method and apparatus for the equilibrium point of charging pile capacity utilization, comprising: determining the annual profit of the charging pile based on its annual revenue and annual cost; plotting a curve corresponding to the annual profit in a pre-constructed coordinate system, and using the charging pile capacity utilization rate corresponding to the intersection of the curve and the horizontal axis of the pre-constructed coordinate system as the equilibrium point of charging pile capacity utilization; wherein the pre-constructed coordinate system has the charging pile capacity utilization rate as the horizontal axis and the annual profit as the vertical axis. The technical solution provided by this invention enables sensitivity analysis and multi-scenario simulation, adapts to different operating conditions, and rapidly obtains assessment results, greatly improving the efficiency of planning and decision-making. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main steps of the rapid evaluation method for the capacity utilization balance point of charging piles according to an embodiment of the present invention. Figure 2 This is a graph showing the annual profit corresponding to an embodiment of the present invention. Detailed Implementation

[0017] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Example 1 See appendix Figure 1 , Figure 1 This is a schematic flowchart illustrating the main steps of a rapid assessment method for the capacity utilization balance point of charging piles according to an embodiment of the present invention. Figure 1As shown, the rapid evaluation method for the charging pile capacity utilization balance point in this embodiment of the invention mainly includes the following steps: Step S101: Determine the annual profit of the charging pile based on its annual revenue and annual cost; Step S102: Plot the curve corresponding to the annual profit in a pre-built coordinate system, and take the charging pile capacity utilization rate corresponding to the intersection of the curve and the horizontal axis in the pre-built coordinate system as the charging pile capacity utilization equilibrium point, for example, as... Figure 2 As shown; The pre-constructed coordinate system uses the charging pile capacity utilization rate as the horizontal axis and annual profit as the vertical axis.

[0020] In this embodiment, the annual revenue of the charging pile is as follows: TR(L) = G * P * L * 365 * 24 * η In the above formula, TR(L) is the annual revenue of the charging pile, G is the unit gross profit margin, P is the rated power of the charging pile, L is the capacity utilization rate of the charging pile, and η is the operating efficiency of the charging pile after considering line loss.

[0021] In one embodiment, the operating efficiency of the charging pile after considering line loss ranges from 90% to 97%.

[0022] In one embodiment, the annual cost of the charging station is as follows: TC(L) = FC + VC(L) In the above formula, TC(L) is the annual cost of the charging pile, FC is the fixed cost of the charging pile, and VC(L) is the variable cost of the charging pile.

[0023] In one embodiment, the fixed cost of the charging station is as follows: FC = C_invest + C_loss + C_om In the above formula, C_invest is the annual investment amortization cost, C_loss is the annual loss cost, and C_om is the annual operation and maintenance cost.

[0024] In one embodiment, the variable cost of the charging station is as follows: VC(L)=C_elec*P*L*365*24*(1-η) In the above formula, C_elec represents the cost per kilowatt-hour of electricity.

[0025] In one implementation, the annual profit of the charging station is as follows: TP(L) = TR(L) - TC(L) In the above formula, TP(L) represents the annual profit of the charging pile.

[0026] In one embodiment, the step of using the charging pile capacity utilization rate corresponding to the intersection of the curve and the horizontal axis in a pre-constructed coordinate system as the charging pile capacity utilization equilibrium point includes: The minimum utilization rate required to achieve a balance in charging pile capacity utilization is determined by the following formula: L_be = (C_invest + C_loss + C_om) / {[(G * η -C_elec * (1-η)] * P *365 * 24} In the above formula, L_be is the minimum utilization rate required to achieve a balance in the capacity utilization of the charging pile.

[0027] In one specific implementation, the various scenario simulations provided by the present invention are as follows: ①Scenario 1: Electricity price fluctuations Users can adjust parameters such as C_elec and unit gross profit G to calculate the new break-even point U_be in real time.

[0028] ②Scenario 2: Service Fee Adjustment By adjusting I_service, users can also change G and the slope of the curve, allowing for timely assessment of the impact of price increases / decreases on profitability and the break-even point.

[0029] ③ Scenario 3: Changes in investment costs. When a user adjusts C_invest, the fixed cost FC changes, causing the TC(L) curve and TP(U) curve to shift up or down, and the break-even point U_be changes accordingly.

[0030] ④ Scenario 4: Comparison of devices with different power ratings. Users can input different values ​​of P and their corresponding values ​​of G to quickly compare the profit curves and break-even points of high-power and low-power charging piles.

[0031] Example 2 Based on the same inventive concept, the present invention also provides a rapid assessment device for the equilibrium point of charging pile capacity utilization, the rapid assessment device for the equilibrium point of charging pile capacity utilization includes: The determination module is used to determine the annual profit of a charging station based on its annual revenue and annual cost. The analysis module is used to plot the curve corresponding to the annual profit in a pre-built coordinate system, and to take the charging pile capacity utilization rate corresponding to the intersection of the curve and the horizontal axis in the pre-built coordinate system as the charging pile capacity utilization balance point. The pre-constructed coordinate system uses the charging pile capacity utilization rate as the horizontal axis and annual profit as the vertical axis.

[0032] Preferably, the annual revenue of the charging pile is as follows: TR(L) = G * P * L * 365 * 24 * η In the above formula, TR(L) is the annual revenue of the charging pile, G is the unit gross profit margin, P is the rated power of the charging pile, L is the capacity utilization rate of the charging pile, and η is the operating efficiency of the charging pile after considering line loss.

[0033] Furthermore, the range of the charging pile operating efficiency after considering line loss is 90%~97%.

[0034] Furthermore, the annual cost of the charging pile is as follows: TC(L) = FC + VC(L) In the above formula, TC(L) is the annual cost of the charging pile, FC is the fixed cost of the charging pile, and VC(L) is the variable cost of the charging pile.

[0035] Furthermore, the fixed costs of the charging pile are as follows: FC = C_invest + C_loss + C_om In the above formula, C_invest is the annual investment amortization cost, C_loss is the annual loss cost, and C_om is the annual operation and maintenance cost.

[0036] Furthermore, the variable costs of the charging pile are as follows: VC(L)=C_elec*P*L*365*24*(1-η) In the above formula, C_elec represents the cost per kilowatt-hour of electricity.

[0037] Furthermore, the annual profit of the charging pile is as follows: TP(L) = TR(L) - TC(L) In the above formula, TP(L) represents the annual profit of the charging pile.

[0038] Furthermore, after taking the charging pile capacity utilization rate corresponding to the intersection of the curve and the horizontal axis in the pre-constructed coordinate system as the charging pile capacity utilization equilibrium point, the following steps are included: The minimum utilization rate required to achieve a balance in charging pile capacity utilization is determined by the following formula: L_be = (C_invest + C_loss + C_om) / {[(G * η -C_elec * (1-η)] * P *365 * 24} In the above formula, L_be is the minimum utilization rate required to achieve a balance in the capacity utilization of the charging pile.

[0039] Example 3 Based on the same inventive concept, this invention also provides a computer device, which includes a processor and a memory. The memory stores a computer program, which includes program instructions. The processor executes the program instructions stored in the computer storage medium. The processor may be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. It is the computing and control core of the terminal, suitable for implementing one or more instructions, specifically suitable for loading and executing one or more instructions in the computer storage medium to implement corresponding method flows or corresponding functions, thereby realizing the steps of the rapid evaluation method for the capacity utilization balance point of a charging pile in the above embodiments.

[0040] Example 4 Based on the same inventive concept, this invention also provides a storage medium, specifically a computer-readable storage medium (Memory), which is a memory device in a computer device used to store programs and data. It is understood that the computer-readable storage medium here can include both the built-in storage medium in the computer device and extended storage media supported by the computer device. The computer-readable storage medium provides storage space that stores the terminal's operating system. Furthermore, this storage space also stores one or more instructions suitable for loading and execution by a processor. These instructions can be one or more computer programs (including program code). It should be noted that the computer-readable storage medium here can be high-speed RAM or non-volatile memory, such as at least one disk storage device. The processor can load and execute one or more instructions stored in the computer-readable storage medium to implement the steps of the rapid evaluation method for the charging pile capacity utilization balance point in the above embodiments.

[0041] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0042] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0043] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0044] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A rapid evaluation method for the equilibrium point of charging pile capacity utilization, characterized in that, The method includes: The annual profit of a charging station is determined based on its annual revenue and annual cost. Plot the curve corresponding to the annual profit in a pre-built coordinate system, and take the charging pile capacity utilization rate corresponding to the intersection of the curve and the horizontal axis in the pre-built coordinate system as the charging pile capacity utilization balance point. The pre-constructed coordinate system uses the charging pile capacity utilization rate as the horizontal axis and annual profit as the vertical axis.

2. The method as described in claim 1, characterized in that, The annual revenue of the charging piles is as follows: TR(L) = G * P * L * 365 * 24 * η In the above formula, TR(L) is the annual revenue of the charging pile, G is the unit gross profit margin, P is the rated power of the charging pile, L is the capacity utilization rate of the charging pile, and η is the operating efficiency of the charging pile after considering line loss.

3. The method as described in claim 2, characterized in that, The range of the charging pile operating efficiency after considering line loss is 90%~97%.

4. The method as described in claim 2, characterized in that, The annual cost of the charging station is as follows: TC(L) = FC + VC(L) In the above formula, TC(L) is the annual cost of the charging pile, FC is the fixed cost of the charging pile, and VC(L) is the variable cost of the charging pile.

5. The method as described in claim 4, characterized in that, The fixed costs of the charging pile are as follows: FC = C_invest + C_loss + C_om In the above formula, C_invest is the annual investment amortization cost, C_loss is the annual loss cost, and C_om is the annual operation and maintenance cost.

6. The method as described in claim 5, characterized in that, The variable costs of the charging station are as follows: VC(L)=C_elec*P*L*365*24*(1-η) In the above formula, C_elec represents the cost per kilowatt-hour of electricity.

7. The method as described in claim 6, characterized in that, The annual profit of the charging pile is as follows: TP(L) = TR(L) - TC(L) In the above formula, TP(L) represents the annual profit of the charging pile.

8. The method as described in claim 7, characterized in that, After taking the charging pile capacity utilization rate corresponding to the intersection of the curve and the horizontal axis in the pre-constructed coordinate system as the charging pile capacity utilization balance point, the following steps are included: The minimum utilization rate required to achieve a balance in charging pile capacity utilization is determined by the following formula: L_be = (C_invest + C_loss + C_om) / {[(G * η -C_elec * (1-η)] * P * 365 *24} In the above formula, L_be is the minimum utilization rate required to achieve a balance in the capacity utilization of the charging pile.

9. An apparatus for rapidly evaluating the capacity utilization equilibrium point of a charging pile according to any one of claims 1-8, characterized in that, The device includes: The determination module is used to determine the annual profit of a charging station based on its annual revenue and annual cost. The analysis module is used to plot the curve corresponding to the annual profit in a pre-built coordinate system, and to take the charging pile capacity utilization rate corresponding to the intersection of the curve and the horizontal axis in the pre-built coordinate system as the charging pile capacity utilization balance point. The pre-constructed coordinate system uses the charging pile capacity utilization rate as the horizontal axis and annual profit as the vertical axis.

10. A computer device, characterized in that, include: One or more processors; The processor is used to execute one or more programs; When the one or more programs are executed by the one or more processors, a rapid evaluation method for the capacity utilization balance point of charging piles as described in any one of claims 1 to 8 is implemented.

11. A computer-readable storage medium, characterized in that, It contains a computer program, which, when executed, implements a rapid evaluation method for the capacity utilization balance point of charging piles as described in any one of claims 1 to 8.

Images