Slow-charging and quick-discharging type charging pile energy storage method and system, medium and program product

Abstract

The invention discloses a slow-charging and quick-discharging type charging pile energy storage method and system, a medium and a program product, and the method comprises the steps: determining a slow-charging charging pile, a full-charging charging pile and a quick-discharging charging pile under the condition of determining that a power grid fluctuates; to-be-charged charging piles in the slow-charging charging piles, idle fully-charged charging piles in the fully-charged charging piles and adjustable fast-discharging charging piles in the fast-discharging charging piles are determined respectively; judging whether an idle fully-charged charging pile connected with the to-be-charged charging pile exists or not; if the idle full-charge charging pile connected with the to-be-charged charging pile does not exist, whether an adjustable quick-discharge charging pile connected with the to-be-charged charging pile exists or not is judged; if the adjustable quick discharge charging piles connected with the to-be-charged charging pile exist, determining a recommendation score of each adjustable quick discharge charging pile; and controlling the adjustable quick discharge charging pile with the highest recommendation score to charge the to-be-charged charging pile. According to the invention, when the power grid fluctuates, the energy storage efficiency of the charging pile is improved.

Description

Technical Field

[0001] The present application belongs to the field of electrical digital data processing, and in particular, relates to a slow-charging and fast-discharging charging pile energy storage method, system, medium and program product. Background Art

[0002] The slow-charge, fast-discharge charging pile energy storage method is a technology designed to optimize the charging efficiency of electric vehicles. This technology provides fast charging services for electric vehicles by charging at a low speed during periods of low electricity prices or low grid load, and then discharging at a high speed when needed. This method can not only balance the grid load, but also improve the utilization rate of charging infrastructure.

[0003] In related technologies, the operating status of energy storage systems and charging piles can be monitored in real time through EMS, including battery power, voltage, current, temperature and other parameters. Based on historical data and real-time data, future power demand and battery status are predicted, charging and discharging strategies are optimized, and finally charging and discharging time is dynamically adjusted according to changes in grid load and electricity prices.

[0004] However, if the power grid to which the charging pile is connected fluctuates, the voltage fluctuation will cause the slow charging voltage of the charging pile to be unstable, thereby affecting the efficiency of slow charging. In addition, the charging pile may be overloaded due to power grid fluctuations, causing damage to the charging pile or triggering a protection mechanism. In summary, the related technology has the problem that the energy storage efficiency of the charging pile is reduced when the power grid fluctuates. Summary of the invention

[0005] The present application provides a slow-charging and fast-discharging charging pile energy storage method, system, medium and program product, which are used to improve the efficiency of charging pile energy storage when the power grid fluctuates.

[0006] In a first aspect, the present application provides a method for storing energy in a slow-charging and fast-discharging charging pile, and in the case of determining that a power grid fluctuates, a slow-charging charging pile, a fully-charged charging pile, and a fast-discharging charging pile are determined; Determine respectively the charging piles to be charged among the slow-charging charging piles, the idle fully-charged charging piles among the fully-charged charging piles, and the adjustable fast-discharging charging piles among the fast-discharging charging piles, the charging piles to be charged being the slow-charging charging piles whose remaining power is less than a first power threshold, the idle fully-charged charging piles being the fully-charged charging piles without charging tasks within a preset time period, and the adjustable fast-discharging charging piles being the fast-discharging charging piles whose remaining power is greater than a second power threshold, and the second power threshold is greater than the first power threshold; Determine whether there is an idle fully charged charging pile connected to the charging pile to be charged; If there is no idle fully charged charging pile connected to the charging pile to be charged, determine whether there is an adjustable fast-discharge charging pile connected to the charging pile to be charged; If there is an adjustable fast-discharging charging pile connected to the charging pile to be charged, determine the recommended score of each adjustable fast-discharging charging pile; Control the recommended highest rated adjustable fast discharge charging station to charge the charging station.

[0007] By adopting the above technical solution, it is possible to effectively identify and distinguish slow charging piles, fully charged piles and fast-discharging piles in the case of power grid fluctuations, providing an accurate classification basis for subsequent charging strategies. Secondly, by further subdividing the waiting charging piles in the slow charging piles, the idle fully charged piles in the fully charged piles and the adjustable fast-discharging piles in the fast-discharging piles, the method can more accurately screen out the charging piles suitable for participating in charging scheduling and improve the charging efficiency. Furthermore, the method first determines whether there are idle fully charged charging piles connected to the waiting charging piles. If not, it then determines whether there are adjustable fast-discharging charging piles connected to the waiting charging piles, which reflects the priority of the charging strategy, that is, giving priority to the use of idle fully charged charging piles, and then considering adjustable fast-discharging charging piles, so as to minimize the impact on the charging piles that are performing fast charging tasks while ensuring the charging effect. Finally, by calculating the recommended score of each adjustable fast-discharge charging pile and controlling the adjustable fast-discharge charging pile with the highest recommended score to charge the charging pile to be charged, the optimal charging pile combination can be selected, which can improve the charging efficiency while taking into account the load balance of the charging piles and extend the service life of the charging piles.

[0008] In combination with some embodiments of the first aspect, in some embodiments, if there is an adjustable fast-discharge charging pile connected to the charging pile to be charged, determining a recommendation score for each adjustable fast-discharge charging pile specifically includes: If there is an adjustable fast-discharging charging pile connected to the charging pile to be charged, determine the real-time power and real-time charging task of each adjustable fast-discharging charging pile; Determine the power score of each adjustable fast-discharge charging pile according to the real-time power, where the power score is the first score or the second score; Determine the charging task score of each adjustable fast-release charging pile according to the real-time charging task, where the charging task score is the third score or the fourth score; Determine the distance score of each adjustable quick-release charging pile according to the connection distance with the charging pile to be charged, and the distance score is the fifth score or the sixth score; The corresponding recommendation score is calculated using a weighted average algorithm based on the power score, charging task score and distance score of each adjustable fast-discharge charging pile.

[0009] By adopting the above technical solution, the real-time power and real-time charging task of each adjustable fast-discharging charging pile are obtained, which provides a key data basis for the subsequent scoring calculation. Secondly, the power score is determined according to the real-time power, the charging task score is determined according to the real-time charging task, and the distance score is determined according to the connection distance with the charging pile to be charged. The multiple key factors affecting the selection of the charging pile are fully considered, making the scoring result more comprehensive and objective. Furthermore, the power score, charging task score and distance score are all set with reasonable interval divisions and corresponding scores. For example, the power score is divided into the first score and the second score, the charging task score is divided into the third score and the fourth score, and the distance score is divided into the fifth score and the sixth score. This score setting can quantitatively evaluate the influence of each factor and lay the foundation for the final comprehensive score. Finally, the weighted average algorithm is used to calculate the comprehensive recommendation score. By reasonably assigning different weights to each score, a comprehensive evaluation result that takes into account multiple factors such as power, charging task and distance can be obtained, so as to select the optimal adjustable fast-discharging charging pile.

[0010] In combination with some embodiments of the first aspect, in some embodiments, the power score of each adjustable fast-discharge charging pile is determined according to the real-time power, and the power score is the first score or the second score, specifically including: When the real-time power level of the adjustable fast-discharging charging pile is within a preset first interval, determining the power level score of the adjustable fast-discharging charging pile to be a first score; When the real-time power of the adjustable fast-discharge charging pile is within the preset second interval, the power score of the adjustable fast-discharge charging pile is determined to be the second score, the power in the preset first interval is not less than the power in the preset second interval, and the first score is greater than the second score.

[0011] By adopting the above technical solution, setting a preset first interval and a preset second interval, the real-time power of the adjustable fast-release charging pile is divided into two levels, corresponding to different power scores, namely the first score and the second score. This interval division method can more carefully evaluate the power state of the charging pile and provide a more refined power level distinction. Secondly, the power of the preset first interval is not less than the power of the preset second interval, and the first score is greater than the second score. This setting conforms to the objective law that the higher the power, the more power available for scheduling, making the assignment of the power score more reasonable and accurate. Furthermore, by subdividing the power level and setting the score differently, the dispatchable priority of the charging pile under different power states can be better reflected, providing a more targeted power factor influence for the comprehensive score. Finally, the reasonable setting of the power score, together with the charging task score and the distance score, constitutes a comprehensive and balanced comprehensive evaluation system, so that the finally selected adjustable fast-release charging pile can achieve the optimal balance in multiple aspects such as power, task and location.

[0012] In combination with some embodiments of the first aspect, in some embodiments, the charging task score of each adjustable fast-discharge charging pile is determined according to the real-time charging task, and the charging task score is the third score or the fourth score, specifically including: When the remaining time of the real-time charging task of the adjustable fast-release charging pile is less than the preset time, determining the charging task score of the adjustable fast-release charging pile to be a third score; When the remaining duration of the real-time charging task of the adjustable fast-release charging pile is not less than the preset duration, the charging task score of the adjustable fast-release charging pile is determined to be a fourth score, and the third score is greater than the fourth score.

[0013] By adopting the above technical solution, it is determined whether the remaining time of the real-time charging task of the adjustable fast-release charging pile is less than the preset time, and the task status of the charging pile is divided into two cases, corresponding to different charging task scores, namely the third score and the fourth score. This division method can clearly distinguish the task saturation of the charging pile and provide a clear judgment basis for the assignment of the charging task score. Secondly, when the remaining time is less than the preset time, it means that the current task of the charging pile is about to be completed and can be put into the new charging schedule more quickly, so it corresponds to a higher third score; and when the remaining time is not less than the preset time, it means that the current task of the charging pile still needs a long time to end, and the flexibility available for scheduling is relatively low, so it corresponds to a lower fourth score. This score setting is in line with the actual situation and can reasonably reflect the impact of the task status of the charging pile on its schedulability. Furthermore, through the binary judgment of the charging task status and the differentiated setting of the score, the scheduling priority of the charging pile under different task saturation levels can be better reflected, providing a more targeted task factor impact for the comprehensive score. Finally, the reasonable setting of the charging task score, together with the power score and distance score, constitutes a comprehensive and balanced comprehensive evaluation system, so that the adjustable fast-release charging pile finally selected can achieve the optimal balance in multiple aspects such as task saturation, power level and location convenience.

[0014] In combination with some embodiments of the first aspect, in some embodiments, the distance score of each adjustable fast-discharge charging pile is determined according to the connection distance with the charging pile to be charged, and the distance score is the fifth score or the sixth score, specifically including: When the connection distance of the adjustable fast-release charging pile is less than the preset distance, determining the distance score of the adjustable fast-release charging pile to be the fifth score; When the connection distance of the adjustable quick-release charging pile is not less than the preset distance, the distance score of the adjustable quick-release charging pile is determined to be the sixth score, and the fifth score is greater than the sixth score.

[0015] By adopting the above technical solution, it is determined whether the connection distance between the adjustable fast-release charging pile and the charging pile to be charged is less than the preset distance, and the position relationship of the charging pile is divided into two cases, corresponding to different distance scores, namely the fifth score and the sixth score. This division method can clearly distinguish the advantages and disadvantages of the location of the charging pile, and provide a clear basis for judgment for the assignment of distance scores. Secondly, when the connection distance is less than the preset distance, it means that the location of the charging pile and the charging pile to be charged is closer, the charging line loss is smaller, and the transmission efficiency is higher, so it corresponds to a higher fifth score; and when the connection distance is not less than the preset distance, it means that the location of the charging pile and the charging pile to be charged is farther, the charging line loss is larger, and the transmission efficiency is lower, so it corresponds to a lower sixth score. This score setting is in line with the actual situation and can reasonably reflect the impact of the location of the charging pile on its dispatchable priority. Furthermore, through the binary judgment of the position relationship and the differentiated setting of the score, the scheduling priority of the charging pile at different distances can be better reflected, and a more targeted distance factor influence can be provided for the comprehensive score. Finally, the reasonable setting of the distance score, together with the power score and charging task score, constitutes a comprehensive and balanced comprehensive evaluation system, so that the adjustable fast-release charging pile finally selected can achieve the optimal balance in multiple aspects such as location convenience, power level and task saturation.

[0016] In combination with some embodiments of the first aspect, in some embodiments, after controlling the adjustable fast-discharging charging pile with the highest recommended score to charge the charging pile to be charged, the method further includes: If there is an idle fully-charged charging pile connected to the charging pile to be charged, determine whether each idle fully-charged charging pile has a scheduled charging task; If there is a scheduled charging task, the idle fully-charged charging pile corresponding to the scheduled charging task is determined as a temporarily idle fully-charged charging pile, and the idle fully-charged charging pile without a scheduled charging task is determined as a truly idle fully-charged charging pile; Determine the remaining opening time of a temporarily idle fully charged charging pile; Determine the remaining time score of each temporarily idle fully-charged charging pile according to the remaining opening time, the remaining time score is the seventh score or the eighth score, and the seventh score is greater than the eighth score; Determine the distance score of each temporarily idle fully-charged charging pile and the real idle fully-charged charging pile according to the connection distance to the charging pile to be charged, the distance score is the ninth score or the tenth score, and the ninth score is greater than the tenth score; A weighted average algorithm is used to calculate the recommendation score corresponding to each temporarily idle fully-charged charging pile and the real idle fully-charged charging pile; Control the recommended charging pile with the highest score to charge the charging pile to be charged.

[0017] By adopting the above technical solution, it is determined whether each idle fully-charged charging pile has a scheduled charging task, and the idle fully-charged charging piles are divided into two categories: temporarily idle fully-charged charging piles and truly idle fully-charged charging piles, providing a more detailed classification basis for the subsequent selection of charging piles. Secondly, for temporarily idle fully-charged charging piles, the method further determines its remaining opening time, and determines the corresponding remaining time score according to the remaining opening time, that is, the seventh score or the eighth score. This approach can more finely evaluate the available time window of temporarily idle fully-charged charging piles, and provide a more accurate time factor impact for the comprehensive score. Furthermore, for temporarily idle fully-charged charging piles and truly idle fully-charged charging piles, the method determines the corresponding distance score according to the connection distance with the charging pile to be charged, that is, the ninth score or the tenth score, and calculates the comprehensive recommendation score of each charging pile through the weighted average algorithm. This scoring mechanism not only takes into account the time factor, but also fully considers the influence of the distance factor, making the scoring result more comprehensive and balanced. Finally, by controlling the charging pile with the highest recommended score to charge the charging pile to be charged, the optimal charging pile combination can be selected from multiple idle fully charged charging piles, while ensuring the charging effect, maximizing the charging efficiency and resource utilization.

[0018] In conjunction with some embodiments of the first aspect, in some embodiments, when it is determined that a power grid fluctuation occurs, the method specifically includes: Obtain the grid voltage monitored by the voltage sensor in real time; Determine the grid frequency based on the frequency meter and grid voltage; When it is determined that the change value of the grid frequency is greater than a preset threshold, it is determined that the grid fluctuates.

[0019] By adopting the above technical solution, the grid voltage monitored by the voltage sensor is obtained in real time, which provides a key data basis for the subsequent grid frequency calculation. The voltage sensor can monitor the change of the grid voltage in real time and accurately, ensuring the reliability and timeliness of the data. Secondly, the grid frequency is determined according to the frequency meter and the grid voltage. This calculation method conforms to the physical laws of the power system and can accurately reflect the real-time operation status of the grid. Frequency is an important indicator for measuring the stability of the grid, and its change directly affects whether the grid fluctuates. Furthermore, by judging whether the change value of the grid frequency is greater than the preset threshold, it can be efficiently and accurately judged whether the grid fluctuates. The setting of the preset threshold can be reasonably adjusted according to the actual operation and stability requirements of the grid, making the fluctuation judgment more flexible and applicable. Finally, when it is determined that the grid fluctuates, the subsequent charging pile classification and charging scheduling process is triggered, so that the entire energy storage method can respond to grid fluctuations in a timely and effective manner, give play to the peak and frequency regulation functions of the charging piles, and improve the stability and reliability of the grid.

[0020] In a second aspect, an embodiment of the present application provides a slow-charging and fast-discharging charging pile energy storage system, which includes: one or more processors and a memory; the memory is coupled to the one or more processors, the memory is used to store computer program code, the computer program code includes computer instructions, and one or more processors call the computer instructions to enable the system to execute the method described in the first aspect and any possible implementation method of the first aspect.

[0021] In a third aspect, an embodiment of the present application provides a computer-readable storage medium, comprising instructions, which, when executed on a system, causes the system to execute the method described in the first aspect and any possible implementation of the first aspect.

[0022] In a fourth aspect, an embodiment of the present application provides a computer program product, characterized in that when the computer program product runs on a system, the system executes the method described in any possible implementation manner in the first aspect.

[0023] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages: 1. The present application provides a slow-charging and fast-discharging charging pile energy storage method, which can effectively identify and distinguish between slow-charging charging piles, fully-charged charging piles and fast-discharging charging piles in the case of fluctuations in the power grid, and provide an accurate classification basis for subsequent charging strategies. Secondly, by further subdividing the charging piles to be charged in the slow-charging charging piles, the idle fully-charged charging piles in the fully-charged charging piles and the adjustable fast-discharging charging piles in the fast-discharging charging piles, the method can more accurately screen out the charging piles suitable for participating in charging scheduling and improve the charging efficiency. Furthermore, the method first determines whether there are idle fully-charged charging piles connected to the charging piles to be charged. If not, it then determines whether there are adjustable fast-discharging charging piles connected to the charging piles to be charged, which reflects the priority of the charging strategy, that is, giving priority to the use of idle fully-charged charging piles, and then considering adjustable fast-discharging charging piles, thereby minimizing the impact on the charging piles that are performing fast-charging tasks while ensuring the charging effect. Finally, by calculating the recommended score of each adjustable fast-discharge charging pile and controlling the adjustable fast-discharge charging pile with the highest recommended score to charge the charging pile to be charged, the optimal charging pile combination can be selected, which can improve the charging efficiency while taking into account the load balance of the charging piles and extend the service life of the charging piles.

[0024] 2. The present application provides a slow-charge and fast-discharge charging pile energy storage method, which obtains the real-time power and real-time charging task of each adjustable fast-discharge charging pile, and provides a key data basis for the subsequent scoring calculation. Secondly, the power score is determined according to the real-time power, the charging task score is determined according to the real-time charging task, and the distance score is determined according to the connection distance with the charging pile to be charged, which fully considers the multiple key factors affecting the selection of the charging pile, making the scoring result more comprehensive and objective. Furthermore, the power score, charging task score and distance score are all set with reasonable interval divisions and corresponding scores. For example, the power score is divided into the first score and the second score, the charging task score is divided into the third score and the fourth score, and the distance score is divided into the fifth score and the sixth score. This score setting can quantitatively evaluate the degree of influence of each factor, laying the foundation for the final comprehensive score. Finally, the weighted average algorithm is used to calculate the comprehensive recommendation score. By reasonably assigning different weights to each score, a comprehensive evaluation result that takes into account multiple factors such as power, charging task and distance can be obtained, so as to select the optimal adjustable fast-discharge charging pile.

[0025] 3. The present application provides a slow-charging and fast-discharging charging pile energy storage method, which determines whether each idle fully-charged charging pile has a scheduled charging task, and divides the idle fully-charged charging piles into two categories: temporarily idle fully-charged charging piles and truly idle fully-charged charging piles, so as to provide a more detailed classification basis for the subsequent selection of charging piles. Secondly, for temporarily idle fully-charged charging piles, the method further determines the remaining opening time, and determines the corresponding remaining time score according to the remaining opening time, that is, the seventh score or the eighth score. This approach can more finely evaluate the available time window of the temporarily idle fully-charged charging pile, and provide a more accurate time factor impact for the comprehensive score. Furthermore, for temporarily idle fully-charged charging piles and truly idle fully-charged charging piles, the method determines the corresponding distance score according to the connection distance with the charging pile to be charged, that is, the ninth score or the tenth score, and calculates the comprehensive recommendation score of each charging pile through the weighted average algorithm. This scoring mechanism not only takes into account the time factor, but also fully considers the influence of the distance factor, so that the scoring result is more comprehensive and balanced. Finally, by controlling the charging pile with the highest recommended score to charge the charging pile to be charged, the optimal charging pile combination can be selected from multiple idle fully charged charging piles, while ensuring the charging effect, maximizing the charging efficiency and resource utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a flow chart of a slow-charging and fast-discharging charging pile energy storage method in an embodiment of the present application.

[0027] Figure 2 It is another flow chart of a slow-charging and fast-discharging charging pile energy storage method in an embodiment of the present application.

[0028] Figure 3 It is a schematic diagram of the physical device structure of a slow-charging and fast-discharging charging pile energy storage system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0029] The terms used in the following embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to be used as limitations to the present application. As used in the specification and appended claims of the present application, the singular expressions "one", "a kind of", "said", "above", "the" and "this" are intended to also include plural expressions, unless there is a clear indication to the contrary in the context. It should also be understood that the term "and / or" used in the present application refers to any or all possible combinations comprising one or more listed items.

[0030] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as suggesting or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features, and in the description of the embodiments of the present application, unless otherwise specified, "plurality" means two or more.

[0031] An application scenario of an embodiment of the present application is described below: With the popularity of electric vehicles, more and more people choose to use electric vehicles as their daily means of transportation. In order to meet the growing demand for charging, a large number of charging infrastructures have been built in cities, including smart charging piles that use slow-charging and fast-discharging energy storage technology. These charging piles charge electric vehicles at a low speed at night when the grid load is low and the electricity price is cheap, and store electricity; and during the day when the grid load is high and the electricity price is expensive, they discharge electric vehicles at a high speed to provide fast charging services.

[0032] This charging mode can not only help electric car owners save charging costs, but also help the power grid balance load and improve energy efficiency. However, in actual operation, due to the complexity and instability of urban power grids, charging piles often encounter problems with power grid fluctuations. When the grid voltage fluctuates, the input voltage of the charging pile in slow charging mode becomes unstable, resulting in a decrease in charging efficiency, and may even cause the charging pile to overload, triggering the protection mechanism or causing equipment damage.

[0033] This problem not only affects the normal operation and service life of the charging pile, but also has a negative impact on the charging experience of electric car owners. Car owners may find that when the power grid fluctuates frequently, even charging during the low-peak hours at night cannot achieve the expected charging effect, and the vehicle power increases slowly. When the power grid fluctuates severely, the charging pile may frequently activate the protection mechanism, resulting in interruption of the charging process, and the owner needs to wait for a long time to complete the charging.

[0034] In addition, abnormal operation of charging piles may also have certain negative effects on the power grid. When a large number of charging piles experience efficiency decline or overload problems at the same time, it may aggravate the instability of the power grid, trigger a wider range of voltage fluctuations or power fluctuations, and pose a threat to the safe operation of the power grid. In order to solve the above technical problems, the present application provides a slow-charging and fast-discharging charging pile energy storage method, which is used to improve the efficiency of charging pile energy storage when the power grid fluctuates.

[0035] Combine the following Figure 1 , a slow charging and fast discharging charging pile energy storage method in an embodiment of the present application is described: See also Figure 1 , which is a flow chart of a slow-charging and fast-discharging charging pile energy storage method in an embodiment of the present application.

[0036] S101. When it is determined that the power grid fluctuates, determine a charging pile in a slow charging process, a charging pile in a full charge process, and a charging pile in a fast discharge process; When the system determines that the power grid is fluctuating, it determines the slow charging pile, the fully charged pile and the fast discharging pile. Specifically, it obtains the power grid voltage monitored by the voltage sensor in real time; Determine the grid frequency based on the frequency meter and grid voltage; When it is determined that the change value of the grid frequency is greater than a preset threshold, it is determined that the grid fluctuates.

[0037] The system obtains the grid voltage data monitored by the voltage sensor in real time and calculates the grid frequency based on the frequency. By comparing the change value of the grid frequency with the preset threshold, the system can determine whether the grid fluctuates. When the change value of the grid frequency exceeds the preset threshold, it can be considered that the grid has fluctuated and the subsequent charging pile scheduling strategy needs to be initiated.

[0038] For example, suppose the system obtains the current grid voltage of 220V through the voltage sensor, and obtains the grid frequency of 49.8Hz through frequency calculation. If the preset grid frequency change threshold is 0.2Hz, then the difference between the current grid frequency and the nominal frequency of 50Hz is 0.2Hz, which just reaches the preset threshold. Therefore, the system determines that the current grid has fluctuated, and it is necessary to confirm and dispatch the slow charging piles, fully charged charging piles, and fast charging piles.

[0039] S102, respectively determining the charging piles to be charged among the slow-charging charging piles, the idle fully-charged charging piles among the fully-charged charging piles, and the adjustable fast-discharging charging piles among the fast-discharging charging piles; The system respectively determines the charging piles to be charged among the slow-charging charging piles, the idle fully-charged charging piles among the fully-charged charging piles, and the adjustable fast-discharging charging piles among the fast-discharging charging piles. The charging piles to be charged are slow-charging charging piles with a remaining power less than a first power threshold, the idle fully-charged charging piles are fully-charged charging piles with no charging tasks within a preset time period, and the adjustable fast-discharging charging piles are fast-discharging charging piles with a remaining power greater than a second power threshold, and the second power threshold is greater than the first power threshold.

[0040] The system identifies the charging piles to be charged from the slow charging piles. The remaining power of these charging piles is lower than the first power threshold and needs to be charged first. Secondly, the system finds the idle fully charged charging piles from the fully charged charging piles, that is, the fully charged charging piles that have no charging tasks scheduled within the preset time period. These charging piles can serve as potential power providers. Finally, the system identifies the adjustable fast-release charging piles from the fast-release charging piles. The remaining power of these charging piles is higher than the second power threshold and has enough power for fast charging.

[0041] For example, suppose the system manages 100 charging piles, 30 of which are in slow charging state, 20 are in full charge state, and 50 are in fast discharge state. The first power threshold is set to 20%, and the second power threshold is set to 80%. By analyzing the status and remaining power of the charging piles, the system confirms 10 charging piles to be charged (remaining power is less than 20%), 5 idle fully charged charging piles (no charging tasks within the preset time period), and 20 adjustable fast discharge charging piles (remaining power is greater than 80%).

[0042] S103, determining whether there is an idle fully charged charging pile connected to the charging pile to be charged; The system needs to determine whether there is an idle fully charged charging pile connected to the charging pile to be charged. The purpose of this step is to give priority to the power resources of the idle fully charged charging pile to quickly charge the charging pile to be charged and reduce the impact on the power grid.

[0043] For example, assume that the system has identified 10 charging piles to be charged and 5 idle fully charged charging piles in step S102. By analyzing the topological connection relationship between the charging piles, the system finds that 3 of the charging piles to be charged are directly connected to the idle fully charged charging piles. This means that these 3 charging piles to be charged can directly obtain power from the connected idle fully charged charging piles without obtaining additional power resources from the power grid.

[0044] By determining the connection relationship between the charging piles to be charged and the idle fully charged charging piles, the system can optimize the allocation of charging resources and reduce the dependence on and impact on the power grid. At the same time, this also helps to improve charging efficiency and shorten the charging time of the charging piles to be charged.

[0045] S104, determining whether there is an adjustable fast-discharge charging pile connected to the charging pile to be charged; If there is no idle fully-charged charging pile connected to the charging pile to be charged, the system determines whether there is an adjustable fast-discharge charging pile connected to the charging pile to be charged.

[0046] If the system does not find an idle fully charged charging pile connected to the charging pile to be charged in step S103, it is necessary to further determine whether there is an adjustable fast-discharge charging pile connected to the charging pile to be charged. The purpose of this step is to try to use the power resources of the adjustable fast-discharge charging pile to charge the charging pile to be charged when the idle fully charged charging pile cannot be directly used.

[0047] For example, suppose that in step S103, the system finds that the remaining 7 charging piles to be charged are not directly connected to the idle fully charged charging pile. Therefore, the system starts to check whether these charging piles to be charged are connected to the adjustable fast-discharge charging pile. After analysis, the system finds that 5 of the charging piles to be charged are directly connected to the adjustable fast-discharge charging pile. This means that these 5 charging piles to be charged can obtain electricity through the connected adjustable fast-discharge charging piles, although this may temporarily affect the fast-charging capability of the adjustable fast-discharge charging pile.

[0048] S105, determining the real-time power and real-time charging task of each adjustable fast-discharge charging pile; If there is an adjustable fast-discharge charging pile connected to the charging pile to be charged, the system determines the real-time power and real-time charging task of each adjustable fast-discharge charging pile.

[0049] If the system confirms in step S104 that there is an adjustable fast-discharge charging pile connected to the charging pile to be charged, it is necessary to further obtain the real-time power and real-time charging task status of each adjustable fast-discharge charging pile. The purpose of this step is to provide a basis for the subsequent evaluation and selection of adjustable fast-discharge charging piles.

[0050] For example, assume that in step S104, the system has identified five adjustable fast-discharge charging piles connected to the charging piles to be charged, numbered QC1 to QC5. Through real-time monitoring, the system obtains their current power and charging task status: QC1: The real-time power level is 85%, and there is currently one charging task in progress; QC2: The real-time power level is 90%, and there are currently 2 charging tasks in progress; QC3: The real-time power level is 92%, and there is no charging task in progress; QC4: The real-time power level is 88%, and there is currently one charging task in progress; QC5: The real-time power level is 95% and there is no charging task in progress.

[0051] By obtaining the real-time power and charging task status of the adjustable fast-discharge charging piles, the system can fully understand the current status and potential available capacity of each charging pile. This lays a data foundation for the subsequent evaluation and selection of charging piles, and helps the system make more refined and reasonable scheduling decisions.

[0052] S106, determining the power score of each adjustable fast-discharge charging pile according to the real-time power; The system determines the power score of each adjustable fast-discharge charging pile according to the real-time power, and the power score is the first score or the second score.

[0053] The system determines the power scores of each adjustable fast-discharge charging pile based on their real-time power. The power scores reflect the impact of the power status of the charging pile on its scheduling priority, and are divided into two levels: the first score and the second score.

[0054] For example, assume that the power score rule set by the system is as follows: For adjustable fast-discharge charging piles with real-time power greater than or equal to 90%, the power score is the first score, with a value of 10 points; For an adjustable fast-discharge charging pile with a real-time power level less than 90%, the power score is the second score, with a value of 8 points.

[0055] According to the real-time power data obtained in step S105, the system calculates the power score of each adjustable fast-discharge charging pile: QC1: The real-time power level is 85%, and the power score is the second highest, 8 points; QC2: The real-time power level is 90%, and the power score is the first score, 10 points; QC3: The real-time power level is 92%, and the power score is the first score, 10 points; QC4: The real-time power level is 88%, and the power score is the second highest, 8 points; QC5: The real-time battery level is 95%, and the battery score is the first score, 10 points.

[0056] By calculating the power score, the system can quantitatively evaluate the power quality of each adjustable fast-discharge charging pile. The higher the power score, the better the power status of the charging pile, and it should be given a higher priority in subsequent scheduling decisions. This helps the system give priority to charging piles with sufficient power and improve overall charging efficiency.

[0057] S107, determining the charging task score of each adjustable fast-release charging pile according to the real-time charging task; The system determines the charging task score of each adjustable fast-release charging pile according to the real-time charging task, and the charging task score is the third score or the fourth score.

[0058] The system determines the charging task scores of each adjustable fast-release charging pile according to their real-time charging task status. The charging task scores reflect the impact of the task saturation of the charging pile on its scheduling priority, and are divided into two levels: the third score and the fourth score.

[0059] For example, assume that the charging task score rules set by the system are as follows: For an adjustable fast-release charging pile that currently has no charging task in progress, the charging task score is the third score, which is 10 points; For an adjustable fast-release charging pile that currently has a charging task in progress, the charging task score is the fourth score, with a value of 6 points.

[0060] According to the real-time charging task data obtained in step S105, the system calculates the charging task score of each adjustable fast-release charging pile: QC1: There is currently one charging task in progress, and the charging task score is the fourth score, 6 points; QC2: There are currently 2 charging tasks in progress, and the charging task score is the fourth score, 6 points; QC3: There is no charging task in progress, and the charging task score is the third score, 10 points; QC4: There is currently one charging task in progress, and the charging task score is the fourth score, 6 points; QC5: There is no charging task in progress. The charging task score is the third score, 10 points.

[0061] By calculating the charging task score, the system can quantitatively evaluate the task saturation of each adjustable fast-release charging pile. The higher the charging task score, the lighter the task load of the charging pile, and it should be given a higher priority in subsequent scheduling decisions. This helps the system give priority to charging piles with lighter task loads, balance the allocation of charging resources, and avoid task overload on individual charging piles.

[0062] S108, determining the distance score of each adjustable fast-discharge charging pile according to the connection distance with the charging pile to be charged; The system determines the distance score of each adjustable fast-release charging pile according to the connection distance to the charging pile to be charged, and the distance score is the fifth score or the sixth score.

[0063] The system determines the distance score of each adjustable fast-release charging pile based on the connection distance between the charging piles to be charged. The distance score reflects the impact of the distance between the charging piles on their scheduling priority, and is divided into two levels: the fifth score and the sixth score.

[0064] For example, suppose the distance score rule set by the system is as follows: For an adjustable fast-discharge charging pile whose connection distance to the charging pile to be charged is less than 50 meters, the distance score is the fifth score, with a value of 10 points; For an adjustable quick-release charging pile whose connection distance to the charging pile to be charged is greater than or equal to 50 meters, the distance score is the sixth score, with a value of 7 points.

[0065] According to the topological connection relationship between the charging piles and the actual distance measurement, the system calculates the distance score of each adjustable fast-release charging pile: QC1: The connection distance to the charging pile is 35 meters, and the distance score is the fifth score, 10 points; QC2: The connection distance to the charging pile is 60 meters, and the distance score is the sixth score, 7 points; QC3: The connection distance to the charging pile is 20 meters, and the distance score is the fifth score, 10 points; QC4: The connection distance to the charging pile is 45 meters, and the distance score is the fifth score, 10 points; QC5: The connection distance to the charging pile to be charged is 70 meters, and the distance score is the sixth score, 7 points.

[0066] By calculating the distance score, the system can quantitatively evaluate the distance between each adjustable fast-discharge charging pile and the charging pile to be charged. The higher the distance score, the closer the distance between the charging pile and the charging pile to be charged, and the higher priority should be given in subsequent scheduling decisions. This helps the system give priority to charging piles that are closer to the charging pile to be charged, reduce the loss of power transmission, and improve charging efficiency.

[0067] S109, using a weighted average algorithm to calculate a corresponding recommendation score according to the power score, charging task score, and distance score of each adjustable fast-discharge charging pile; The system uses a weighted average algorithm to calculate the recommended score of each adjustable fast-discharge charging pile based on its power score, charging task score, and distance score. The recommended score takes into account multiple attributes of the charging pile and is used for subsequent scheduling decisions.

[0068] For example, assume that the weighted average algorithm set by the system is as follows: The weight of the power score is 40%, the weight of the charging task score is 30%, and the weight of the distance score is 30%; Recommended score = battery score × 40% + charging task score × 30% + distance score × 30%.

[0069] Based on the scores calculated in steps S106, S107, and S108, the system uses a weighted average algorithm to obtain a recommended score for each adjustable fast-discharge charging pile: QC1: Power score 8 points, Charging task score 6 points, Distance score 10 points, Recommended score = 8 × 40% + 6 × 30% + 10 × 30% = 8.0 points; QC2: Power score 10 points, charging task score 6 points, distance score 7 points, recommended score = 10 × 40% + 6 × 30% + 7 × 30% = 7.9 points; QC3: Power score: 10 points, Charging task score: 10 points, Distance score: 10 points, Recommended score = 10 × 40% + 10 × 30% + 10 × 30% = 10.0 points; QC4: battery score 8 points, charging task score 6 points, distance score 10 points, recommended score = 8 × 40% + 6 × 30% + 10 × 30% = 8.0 points; QC5: battery score 10 points, charging task score 10 points, distance score 7 points, recommended score = 10 × 40% +10 × 30% + 7 × 30% = 9.1 points.

[0070] By calculating the recommendation score through the weighted average algorithm, the system can comprehensively consider multiple attributes of the adjustable fast-release charging pile to obtain a comprehensive and balanced evaluation result. The higher the recommendation score, the better the overall performance of the charging pile, and it should be given a higher priority in subsequent scheduling decisions. This helps the system select the optimal charging pile from multiple dimensions and improve the overall scheduling efficiency and charging experience.

[0071] S110, control the recommended highest-rated adjustable fast-discharge charging pile to charge the charging pile to be charged; According to the recommended score calculated in step S109, the system selects the adjustable fast-discharge charging pile with the highest score and controls it to charge the charging pile to be charged. For example, according to the recommended score calculated in step S109, the system obtains the following ranking results: QC3: The recommended score is 10.0 points, ranking first; QC5: The recommended score is 9.1 points, ranking second; QC1: The recommended score is 8.0 points, ranking third; QC4: The recommended score is 8.0 points, ranking third; QC2: The recommended score is 7.9 points, ranking fifth.

[0072] According to the recommended score ranking, the system selects the QC3 charging pile with the highest score and controls it to charge the charging pile to be charged. The system realizes a safe and efficient charging process by controlling the power transmission switch and charging controller between the QC3 and the charging pile to be charged. At the same time, the system monitors the voltage, current and other parameters during the charging process to ensure the stability and reliability of charging.

[0073] S111, determining whether each idle fully charged charging pile has a scheduled charging task; If there are idle fully-charged charging piles connected to the charging pile to be charged, it is determined whether each idle fully-charged charging pile has a scheduled charging task.

[0074] If the system confirms in step S103 that there are idle fully-charged charging piles connected to the charging pile to be charged, it is necessary to further determine whether each idle fully-charged charging pile has a scheduled charging task. The purpose of this step is to distinguish between truly idle fully-charged charging piles and temporarily idle fully-charged charging piles with scheduled tasks, providing more fine-grained information for subsequent scheduling decisions.

[0075] For example, assume that in step S103, the system has confirmed three idle fully charged charging piles connected to the charging piles to be charged, numbered FC1, FC2 and FC3. By querying the charging reservation system, the system obtains their reservation task status: FC1: There is no scheduled charging task in the next hour; FC2: There is a scheduled charging task in the next 30 minutes; FC3: There are no scheduled charging tasks in the next 2 hours.

[0076] According to the reservation task situation, the system can further subdivide the types of idle fully-charged charging piles. For FC1 and FC3, since there are no reservation tasks for a relatively long time, they can be regarded as truly idle fully-charged charging piles. For FC2, although it is currently idle, it needs to be regarded as a temporarily idle fully-charged charging pile because there are reservation tasks in a short period of time.

[0077] S112, determining an idle fully-charged charging pile corresponding to a scheduled charging task as a temporarily idle fully-charged charging pile, and determining an idle fully-charged charging pile corresponding to no scheduled charging task as a truly idle fully-charged charging pile; If there is a scheduled charging task, the idle full-charge charging pile corresponding to the scheduled charging task will be determined as a temporarily idle full-charge charging pile, and the idle full-charge charging pile without a scheduled charging task will be determined as a truly idle full-charge charging pile.

[0078] According to the judgment result of step S111, the system further divides the idle fully-charged charging piles into two categories: temporarily idle fully-charged charging piles and truly idle fully-charged charging piles. Among them, idle fully-charged charging piles with scheduled charging tasks are marked as temporarily idle fully-charged charging piles, while idle fully-charged charging piles without scheduled charging tasks are marked as truly idle fully-charged charging piles. This classification provides clearer guidance for subsequent scheduling decisions.

[0079] For example, according to the judgment result of step S111, the system classifies three idle fully charged charging piles as follows: FC1: There is no scheduled charging task and it is marked as a real idle fully charged charging pile; FC2: There is a scheduled charging task and the fully charged charging pile is marked as temporarily idle; FC3: There is no scheduled charging task and it is marked as a real idle fully charged charging pile.

[0080] S113, determining the remaining opening time of the temporarily idle fully-charged charging pile; The remaining time score of each temporarily idle fully-charged charging pile is determined according to the remaining opening time, and the remaining time score is the seventh score or the eighth score, and the seventh score is greater than the eighth score.

[0081] The system further determines the remaining opening time of each temporarily idle fully-charged charging pile. The remaining opening time represents the idle time period of the charging pile from the current moment to the start time of the scheduled task. This information is very important for properly arranging the scheduling order and charging time of temporarily idle fully-charged charging piles.

[0082] For example, assuming that the current time is 14:00, according to the classification result of step S112, for the temporarily idle fully charged charging pile FC2, the system queries that the start time of its scheduled task is 14:30. Therefore, the remaining opening time of FC2 is 30 minutes.

[0083] S114, determining the remaining time score of each temporarily idle fully-charged charging pile according to the remaining opening time; The system determines the remaining time score of each temporarily idle fully-charged charging pile according to the remaining opening time of each temporarily idle fully-charged charging pile. The remaining time score reflects the impact of the idle time period of the temporarily idle fully-charged charging pile on its scheduling priority, and is divided into two levels: the seventh score and the eighth score.

[0084] For example, suppose the remaining time score rules set by the system are as follows: For temporarily idle fully-charged charging piles with a remaining opening time greater than or equal to 1 hour, the remaining time score is the seventh score, with a value of 10 points; For a temporarily idle fully-charged charging station with a remaining opening time of less than 1 hour, the remaining time score is the eighth score, with a value of 6 points.

[0085] According to the remaining opening time determined in step S113, the system calculates the remaining time score of the temporarily idle fully-charged charging pile FC2: FC2: The remaining opening time is 30 minutes, which is less than 1 hour, so the remaining time score is the eighth score, with a value of 6 points.

[0086] By calculating the remaining time score, the system can quantitatively evaluate the time priority of each temporarily idle fully-charged charging pile. The higher the remaining time score, the longer the idle time period of the charging pile, and the higher priority should be given in subsequent scheduling decisions. This helps the system optimize the scheduling strategy in the time dimension, giving priority to temporarily idle fully-charged charging piles with longer available time, and improving the efficiency of completing charging tasks.

[0087] S115, determining the distance score of each temporarily idle fully-charged charging pile and the truly idle fully-charged charging pile according to the connection distance to the charging pile to be charged; The distance scores of each temporarily idle fully-charged charging pile and the real idle fully-charged charging pile are determined respectively according to the connection distance to the charging pile to be charged, and the distance score is the ninth score or the tenth score, and the ninth score is greater than the tenth score.

[0088] The system determines the distance scores of each temporarily idle fully charged charging pile and the real idle fully charged charging pile according to the connection distance between them and the charging pile to be charged. The distance score reflects the impact of the distance between charging piles on their scheduling priority, and is divided into two levels: the ninth score and the tenth score.

[0089] For example, suppose the distance score rule set by the system is as follows: For charging piles that are less than 50 meters away from the charging pile to be charged, the distance score is the ninth score, with a value of 10 points; For charging piles whose connection distance to the charging pile to be charged is greater than or equal to 50 meters, the distance score is the tenth score, with a value of 7 points.

[0090] According to the topological connection relationship between charging piles and the actual distance measurement, the system calculates the distance score of each charging pile: FC1 (real idle fully charged charging pile): the connection distance to the charging pile to be charged is 30 meters, and the distance score is the ninth score, 10 points; FC2 (temporarily idle fully charged charging pile): The connection distance to the charging pile to be charged is 60 meters, and the distance score is the tenth score, 7 points; FC3 (real idle fully charged charging pile): The connection distance to the charging pile to be charged is 40 meters, and the distance score is the ninth score, 10 points.

[0091] By calculating the distance score, the system can quantitatively evaluate the distance between each charging pile and the charging pile to be charged. The higher the distance score, the closer the distance between the charging pile and the charging pile to be charged, and the higher priority should be given in the subsequent scheduling decision. This helps the system give priority to charging piles that are closer to the charging pile to be charged, reduce the loss of power transmission, and improve charging efficiency.

[0092] S116. Calculate the recommendation score corresponding to each temporarily idle fully-charged charging pile and the real idle fully-charged charging pile using a weighted average algorithm; Based on the distance scores of each charging pile obtained in step S115 and the remaining time scores of the temporarily idle fully charged charging piles obtained in step S114, the system uses a weighted average algorithm to calculate their recommendation scores. The calculation formula is as follows: For a temporarily idle fully charged charging station: Recommended score = Remaining time score × 60% + Distance score × 40% For a real idle fully charged charging pile: Recommendation score = distance score × 100% Based on the example in step S115, the recommended score of each charging pile is calculated: FC1 (real idle fully charged charging station): Distance score is 10 points Recommendation score = 10 × 100% = 10 points FC2 (temporarily idle fully charged charging station): The remaining time score is 6 points (eighth score), and the distance score is 7 points (tenth score) Recommendation score = 6 × 60% + 7 × 40% = 6.4 points FC3 (real idle fully charged charging station): Distance score is 10 points Recommendation score = 10 × 100% = 10 points S117. Control the charging pile with the highest recommendation score to charge the charging pile to be charged.

[0093] The above embodiments have the following beneficial effects: In the case of power grid fluctuations, it can effectively identify and distinguish slow charging piles, full-charged charging piles and fast-discharging charging piles, providing an accurate classification basis for subsequent charging strategies. Secondly, by further subdividing the waiting charging piles in the slow charging piles, the idle full-charged charging piles in the full-charged charging piles and the adjustable fast-discharging charging piles in the fast-discharging charging piles, the method can more accurately screen out the charging piles suitable for participating in charging scheduling and improve the charging efficiency. Furthermore, the method first determines whether there is an idle full-charged charging pile connected to the waiting charging pile. If not, it then determines whether there is an adjustable fast-discharging charging pile connected to the waiting charging pile, which reflects the priority of the charging strategy, that is, the idle full-charged charging piles are used first, and then the adjustable fast-discharging charging piles are considered, so as to minimize the impact on the charging piles that are performing fast charging tasks while ensuring the charging effect. Finally, by calculating the recommended score of each adjustable fast-discharging charging pile and controlling the adjustable fast-discharging charging pile with the highest recommended score to charge the waiting charging pile, the optimal charging pile combination can be selected, which not only improves the charging efficiency, but also takes into account the load balancing of the charging piles and prolongs the service life of the charging piles.

[0094] The real-time power and real-time charging task of each adjustable fast-discharge charging pile are obtained, which provides a key data basis for the subsequent scoring calculation. Secondly, the power score is determined according to the real-time power, the charging task score is determined according to the real-time charging task, and the distance score is determined according to the connection distance with the charging pile to be charged. The multiple key factors affecting the selection of the charging pile are fully considered, making the scoring result more comprehensive and objective. Furthermore, the power score, charging task score and distance score are all set with reasonable interval divisions and corresponding scores. For example, the power score is divided into the first score and the second score, the charging task score is divided into the third score and the fourth score, and the distance score is divided into the fifth score and the sixth score. This score setting can quantitatively evaluate the influence of each factor and lay the foundation for the final comprehensive score. Finally, the weighted average algorithm is used to calculate the comprehensive recommendation score. By reasonably assigning different weights to each score, a comprehensive evaluation result that takes into account multiple factors such as power, charging task and distance can be obtained, so as to select the optimal adjustable fast-discharge charging pile.

[0095] It is determined whether each idle fully-charged charging pile has a scheduled charging task, and the idle fully-charged charging piles are divided into two categories: temporarily idle fully-charged charging piles and truly idle fully-charged charging piles, so as to provide a more detailed classification basis for the subsequent selection of charging piles. Secondly, for temporarily idle fully-charged charging piles, the method further determines the remaining opening time, and determines the corresponding remaining time score according to the remaining opening time, that is, the seventh score or the eighth score. This approach can more finely evaluate the available time window of temporarily idle fully-charged charging piles, and provide a more accurate time factor impact for the comprehensive score. Furthermore, for temporarily idle fully-charged charging piles and truly idle fully-charged charging piles, the method determines the corresponding distance score according to the connection distance with the charging pile to be charged, that is, the ninth score or the tenth score, and calculates the comprehensive recommendation score of each charging pile through the weighted average algorithm. This scoring mechanism not only takes into account the time factor, but also fully considers the influence of the distance factor, making the scoring result more comprehensive and balanced. Finally, by controlling the charging pile with the highest recommended score to charge the charging pile to be charged, the optimal charging pile combination can be selected from multiple idle fully-charged charging piles, while ensuring the charging effect, maximizing the charging efficiency and resource utilization.

[0096] Real-time acquisition of the grid voltage monitored by the voltage sensor provides a key data basis for the subsequent grid frequency calculation. The voltage sensor can monitor the change of the grid voltage in real time and accurately, ensuring the reliability and timeliness of the data. Secondly, the grid frequency is determined according to the frequency meter and the grid voltage. This calculation method conforms to the physical laws of the power system and can accurately reflect the real-time operation status of the grid. Frequency is an important indicator for measuring the stability of the grid, and its change directly affects whether the grid fluctuates. Furthermore, by judging whether the change value of the grid frequency is greater than the preset threshold, it can be efficiently and accurately judged whether the grid fluctuates. The setting of the preset threshold can be reasonably adjusted according to the actual operation and stability requirements of the grid, making the fluctuation judgment more flexible and applicable. Finally, when it is determined that the grid fluctuates, the subsequent charging pile classification and charging scheduling process is triggered, so that the entire energy storage method can respond to grid fluctuations in a timely and effective manner, give play to the peak and frequency regulation functions of the charging piles, and improve the stability and reliability of the grid.

[0097] In the above embodiment, steps S106-S108 contain the power score, charging task score and distance score. The following is another embodiment to illustrate how the power score is obtained. The charging task score and distance score are obtained in the same way. Figure 2 , another slow charging and fast discharging charging pile energy storage method in the embodiment of the present application is described: See also Figure 2 , is another flow chart of a slow-charging and fast-discharging charging pile energy storage method in an embodiment of the present application.

[0098] S201: When the real-time power level of the adjustable fast-discharging charging pile is within a preset first interval, determining that the power level score of the adjustable fast-discharging charging pile is a first score; The system determines the power score of the adjustable fast-discharge charging pile by judging whether the real-time power of the charging pile is in the preset first interval. The preset first interval can be set according to the actual application scenario and needs, and usually corresponds to a higher power level. When the real-time power of the adjustable fast-discharge charging pile falls in the first interval, the system determines its power score as the first score, which is a higher score.

[0099] For example, assume that the first interval preset by the system is power ≥ 80%, and the first score is 10. When the real-time power of a certain adjustable fast-discharge charging pile QC1 is 85%, since 85% ≥ 80%, it belongs to the first interval, so the system determines that the power score of QC1 is 10 points.

[0100] Through step S201, the system can quantitatively evaluate the power quality of the adjustable fast-discharge charging pile. The higher the power score, the higher the power level of the charging pile, and the more sufficient the power resources available for external fast charging. This provides an important basis for subsequent charging pile scheduling decisions, and helps the system give priority to charging piles with higher power to participate in fast charging, thereby improving the overall charging efficiency and power utilization.

[0101] At the same time, by presetting the power intervals and corresponding scores, the system can flexibly adapt to different application needs. The interval division and score setting can be adjusted according to the actual situation to better guide the power management and scheduling strategy of the charging pile. This quantitative evaluation method improves the intelligence level of the system, enabling it to manage distributed charging pile resources more finely and dynamically.

[0102] S202: When the real-time power level of the adjustable fast-discharging charging pile is within a preset second interval, determining that the power level score of the adjustable fast-discharging charging pile is a second score.

[0103] When the real-time power of the adjustable fast-discharge charging pile is within the preset second interval, the power score of the adjustable fast-discharge charging pile is determined to be the second score, the power in the preset first interval is not less than the power in the preset second interval, and the first score is greater than the second score.

[0104] Similarly, when the remaining time of the real-time charging task of the adjustable fast-release charging pile is less than the preset time, the charging task score of the adjustable fast-release charging pile is determined to be the third score; When the remaining duration of the real-time charging task of the adjustable fast-release charging pile is not less than the preset duration, the charging task score of the adjustable fast-release charging pile is determined to be a fourth score, and the third score is greater than the fourth score.

[0105] When the connection distance of the adjustable fast-release charging pile is less than the preset distance, determining the distance score of the adjustable fast-release charging pile to be the fifth score; When the connection distance of the adjustable quick-release charging pile is not less than the preset distance, the distance score of the adjustable quick-release charging pile is determined to be the sixth score, and the fifth score is greater than the sixth score.

[0106] The above embodiments have the following beneficial effects: The preset first interval and the preset second interval are set to divide the real-time power of the adjustable fast-release charging pile into two levels, corresponding to different power scores, namely the first score and the second score. This interval division method can evaluate the power status of the charging pile more carefully and provide a more refined power level distinction. Secondly, the power of the preset first interval is not less than the power of the preset second interval, and the first score is greater than the second score. This setting conforms to the objective law that the higher the power, the more power can be used for scheduling, making the assignment of the power score more reasonable and accurate. Furthermore, by subdividing the power level and setting the score differently, the dispatchable priority of the charging pile under different power states can be better reflected, providing a more targeted power factor influence for the comprehensive score. Finally, the reasonable setting of the power score, together with the charging task score and the distance score, constitutes a comprehensive and balanced comprehensive evaluation system, so that the finally selected adjustable fast-release charging pile can achieve the optimal balance in multiple aspects such as power, task and location.

[0107] It is determined whether the remaining time of the real-time charging task of the adjustable fast-release charging pile is less than the preset time, and the task status of the charging pile is divided into two cases, corresponding to different charging task scores, namely the third score and the fourth score. This division method can clearly distinguish the task saturation of the charging pile and provide a clear basis for judgment for the assignment of the charging task score. Secondly, when the remaining time is less than the preset time, it means that the current task of the charging pile is about to be completed and can be put into the new charging schedule more quickly, so it corresponds to a higher third score; and when the remaining time is not less than the preset time, it means that the current task of the charging pile will take a long time to end, and the flexibility available for scheduling is relatively low, so it corresponds to a lower fourth score. This score setting is in line with the actual situation and can reasonably reflect the impact of the task status of the charging pile on its schedulability. Furthermore, through the binary judgment of the charging task status and the differentiated setting of the score, the scheduling priority of the charging pile under different task saturation levels can be better reflected, providing a more targeted task factor impact for the comprehensive score. Finally, the reasonable setting of the charging task score, together with the power score and distance score, constitutes a comprehensive and balanced comprehensive evaluation system, so that the adjustable fast-release charging pile finally selected can achieve the optimal balance in multiple aspects such as task saturation, power level and location convenience.

[0108] Determine whether the connection distance between the adjustable fast-release charging pile and the charging pile to be charged is less than the preset distance, and divide the position relationship of the charging pile into two situations, corresponding to different distance scores, namely the fifth score and the sixth score. This division method can clearly distinguish the advantages and disadvantages of the location of the charging pile, and provide a clear basis for judgment for the assignment of distance scores. Secondly, when the connection distance is less than the preset distance, it means that the location of the charging pile and the charging pile to be charged is closer, the charging line loss is smaller, and the transmission efficiency is higher, so it corresponds to a higher fifth score; and when the connection distance is not less than the preset distance, it means that the location of the charging pile and the charging pile to be charged is farther, the charging line loss is larger, and the transmission efficiency is lower, so it corresponds to a lower sixth score. This score setting is in line with the actual situation and can reasonably reflect the impact of the location of the charging pile on its dispatchable priority. Furthermore, through the binary judgment of the position relationship and the differentiated setting of the score, the scheduling priority of the charging pile at different distances can be better reflected, and a more targeted distance factor influence can be provided for the comprehensive score. Finally, the reasonable setting of the distance score, together with the power score and charging task score, constitutes a comprehensive and balanced comprehensive evaluation system, so that the adjustable fast-release charging pile finally selected can achieve the optimal balance in multiple aspects such as location convenience, power level and task saturation.

[0109] The following describes the system in the embodiment of the present invention from the perspective of hardware processing. Figure 3 , which is a schematic diagram of the physical device structure of a slow-charging and fast-discharging charging pile energy storage system provided in an embodiment of the present application.

[0110] It should be noted that Figure 3 The structure of the system shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present invention.

[0111] like Figure 3 As shown, the system includes a central processing unit (CPU) 301, which can perform various appropriate actions and processes according to the program stored in the read-only memory (ROM) 302 or the program loaded from the storage part 308 to the random access memory (RAM) 303, such as executing the method in the above embodiment. In RAM 303, various programs and data required for system operation are also stored. CPU 301, ROM 302 and RAM 303 are connected to each other through a bus 304. Input / output (I / O) interface 305 is also connected to bus 304.

[0112] The following components are connected to the I / O interface 305: an input section 306 including a camera, an infrared sensor, etc.; an output section 307 including a liquid crystal display (LCD) and a speaker, etc.; a storage section 308 including a hard disk, etc.; and a communication section 309 including a network interface card such as a LAN (Local Area Network) card, a modem, etc. The communication section 309 performs communication processing via a network such as the Internet. A drive 310 is also connected to the I / O interface 305 as needed. A removable medium 311, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc., is installed on the drive 310 as needed so that a computer program read therefrom is installed into the storage section 308 as needed.

[0113] In particular, according to an embodiment of the present invention, the process described above with reference to the flowchart can be implemented as a computer software program. For example, an embodiment of the present invention includes a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program includes a computer program for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network through the communication part 309, and / or installed from a removable medium 311. When the computer program is executed by the central processing unit (CPU) 301, various functions defined in the present invention are performed.

[0114] It should be noted that the computer-readable medium shown in the embodiment of the present invention may be a computer-readable signal medium or a computer-readable storage medium or any combination of the above two. The computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM), a flash memory, an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In the present invention, a computer-readable storage medium may be any tangible medium containing or storing a program, which may be used by or in combination with an instruction execution system, device or device. In the present invention, a computer-readable signal medium may include a data signal propagated in a baseband or as part of a carrier wave, which carries a computer-readable computer program. Such a propagated data signal may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the foregoing.

[0115] The flowcharts and block diagrams in the accompanying drawings illustrate the possible architecture, functions and operations of the systems, methods and computer program products according to various embodiments of the present invention. Among them, each box in the flowchart or block diagram can represent a module, a program segment, or a part of the code, and the above-mentioned module, program segment, or a part of the code contains one or more executable instructions for implementing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram or flowchart, and the combination of boxes in the block diagram or flowchart, can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0116] As another aspect, the present invention further provides a computer-readable storage medium, which may be included in the system described in the above embodiment; or may exist independently without being assembled into the system. The above storage medium carries one or more computer programs, and when the above one or more computer programs are executed by a processor of a system, the system implements the method provided in the above embodiment.

[0117] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

[0118] As used in the above embodiments, the term "when..." may be interpreted to mean "if..." or "after..." or "in response to determining..." or "in response to detecting...", depending on the context. Similarly, the phrases "upon determining..." or "if (the stated condition or event) is detected" may be interpreted to mean "if determining..." or "in response to determining..." or "upon detecting (the stated condition or event)" or "in response to detecting (the stated condition or event)", depending on the context.

[0119] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website site, computer, server or data center to another website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrated. The available medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid-state hard disk), etc.

[0120] Those skilled in the art can understand that to implement all or part of the processes in the above-mentioned embodiments, the processes can be completed by computer programs to instruct related hardware, and the programs can be stored in computer-readable storage media. When the programs are executed, they can include the processes of the above-mentioned method embodiments. The aforementioned storage media include: ROM or random access memory RAM, magnetic disk or optical disk and other media that can store program codes.

Claims

1. A slow-charge and fast-discharge charging pile energy storage method, characterized in that: include: In the case of fluctuations in the power grid, determine the slow charging pile, full charging pile, and fast discharging charging pile; Respectively determine a charging pile to be charged among the slow-charging charging piles, an idle fully-charged charging pile among the fully-charged charging piles, and an adjustable fast-discharging charging pile among the fast-discharging charging piles, wherein the charging pile to be charged is a slow-charging charging pile with a remaining power less than a first power threshold, the idle fully-charged charging pile is a fully-charged charging pile with no charging task within a preset time period, and the adjustable fast-discharging charging pile is a fast-discharging charging pile with a remaining power greater than a second power threshold, and the second power threshold is greater than the first power threshold; Determine whether there is an idle fully-charged charging pile connected to the charging pile to be charged; If there is no idle fully charged charging pile connected to the charging pile to be charged, determining whether there is an adjustable fast-discharge charging pile connected to the charging pile to be charged; If there is an adjustable fast-discharging charging pile connected to the charging pile to be charged, determining a recommendation score for each of the adjustable fast-discharging charging piles; The adjustable fast-discharging charging pile with the highest recommended score is controlled to charge the charging pile to be charged.

2. The method according to claim 1, characterized in that If there is an adjustable fast-discharging charging pile connected to the charging pile to be charged, determining a recommendation score for each of the adjustable fast-discharging charging piles specifically includes: If there is an adjustable fast-discharging charging pile connected to the charging pile to be charged, determining the real-time power and real-time charging task of each of the adjustable fast-discharging charging piles; Determine the power score of each of the adjustable fast-discharge charging piles according to the real-time power, where the power score is the first score or the second score; Determine a charging task score for each of the adjustable fast-discharge charging piles according to the real-time charging task, where the charging task score is the third score or the fourth score; Determine the distance score of each of the adjustable quick-release charging piles according to the connection distance with the charging pile to be charged, the distance score being the fifth score or the sixth score; The corresponding recommendation score is calculated using a weighted average algorithm based on the power score, charging task score and distance score of each adjustable fast-discharge charging pile.

3. The method according to claim 2, characterized in that Determining the power score of each of the adjustable fast-discharge charging piles according to the real-time power, wherein the power score is the first score or the second score, specifically includes: When the real-time power level of the adjustable fast-discharge charging pile is within a preset first interval, determining the power level score of the adjustable fast-discharge charging pile to be a first score; When the real-time power level of the adjustable fast-discharge charging pile is within a preset second interval, the power score of the adjustable fast-discharge charging pile is determined to be a second score, the power level of the preset first interval is not less than the power level of the preset second interval, and the first score is greater than the second score. 4..The method according to claim 2, characterized in that The charging task score of each adjustable fast-discharge charging pile is determined according to the real-time charging task, wherein the charging task score is the third score or the fourth score, and specifically includes: When the remaining duration of the real-time charging task of the adjustable fast-discharging charging pile is less than the preset duration, determining the charging task score of the adjustable fast-discharging charging pile to be a third score; When the remaining duration of the real-time charging task of the adjustable fast-release charging pile is not less than the preset duration, the charging task score of the adjustable fast-release charging pile is determined to be a fourth score, and the third score is greater than the fourth score.

5. The method according to claim 2, characterized in that: The distance score of each adjustable quick-release charging pile is determined according to the connection distance with the charging pile to be charged, and the distance score is the fifth score or the sixth score, specifically including: When the connection distance of the adjustable fast-release charging pile is less than the preset distance, determining the distance score of the adjustable fast-release charging pile to be a fifth score; When the connection distance of the adjustable quick-release charging pile is not less than the preset distance, the distance score of the adjustable quick-release charging pile is determined to be a sixth score, and the fifth score is greater than the sixth score.

6. The method according to claim 1 or 2, characterized in that: After controlling the adjustable fast-discharging charging pile with the highest recommended score to charge the charging pile to be charged, the method further includes: If there is an idle fully-charged charging pile connected to the charging pile to be charged, determining whether each of the idle fully-charged charging piles has a scheduled charging task; If there is the scheduled charging task, the idle fully-charged charging pile corresponding to the scheduled charging task is determined as a temporarily idle fully-charged charging pile, and the idle fully-charged charging pile without the scheduled charging task is determined as a truly idle fully-charged charging pile; Determine the remaining opening time of the temporarily idle fully-charged charging pile; Determine the remaining time score of each temporarily idle fully-charged charging pile according to the remaining opening time, the remaining charging time score is the seventh score or the eighth score, and the seventh score is greater than the eighth score; Determine the distance score between each of the temporarily idle fully-charged charging piles and the truly idle fully-charged charging piles according to the connection distance to the charging pile to be charged, the distance score being the ninth score or the tenth score, and the ninth score being greater than the tenth score; A weighted average algorithm is used to calculate a recommendation score corresponding to each of the temporarily idle fully-charged charging piles and the truly idle fully-charged charging piles; The charging pile with the highest recommended score is controlled to charge the charging pile to be charged.

7. The method according to claim 1, characterized in that When it is determined that the power grid fluctuates, the method specifically includes: Obtain the grid voltage monitored by the voltage sensor in real time; determining the grid frequency according to the frequency meter and the grid voltage; When it is determined that the change value of the power grid frequency is greater than a preset threshold, it is determined that the power grid fluctuates.

8. A slow-charge and fast-discharge charging pile energy storage system, characterized in that: The system comprises: One or more processors and a memory; the memory is coupled to the one or more processors, the memory is used to store computer program code, the computer program code includes computer instructions, and the one or more processors call the computer instructions to cause the system to execute the method as described in any one of claims 1-7.

9. A computer-readable storage medium comprising instructions, characterized in that: When the instructions are executed on a system, the system is caused to execute the method according to any one of claims 1 to 7.

10. A computer program product, characterized in that When the computer program product is run on a system, the system is caused to execute the method according to any one of claims 1 to 7.

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