Power conversion system scheduling method and device, electronic equipment and storage medium

Abstract

The invention relates to a battery replacement system scheduling method and device, electronic equipment and a storage medium. The method comprises the steps that the number of fully-charged battery packs in a battery replacement system and a first preset battery pack threshold value and a second preset battery pack threshold value configured for the battery replacement system are obtained; under the condition that the number of the fully-charged battery packs is smaller than or equal to a first preset battery pack threshold value, the battery replacing system is controlled to enter a forced charging state; under the condition that the number of the fully-charged battery packs is greater than a first preset battery pack threshold value and less than or equal to a second preset battery pack threshold value, controlling the battery switching system to enter a charging priority state; and under the condition that the number of the fully-charged battery packs is greater than a second preset battery pack threshold value, controlling the battery switching system to enter a discharging priority state. According to the invention, the scheduling of the power conversion system is more reasonable.

Description

Technical Field

[0001] The present invention relates to the technical field of battery swap system scheduling, and in particular to a battery swap system scheduling method, device, electronic equipment and storage medium. Background Art

[0002] With the development of charging technology and energy storage technology, as well as the increasing demand for charging speed, battery swapping systems are increasingly being deployed in charging stations. The battery swapping system can store electric energy. By scheduling the charging and discharging status of the battery swapping system, it can supply power to the battery pack that needs to be recharged, and can also adjust the load of the microgrid where the battery swapping system is located. Therefore, how to reasonably schedule the battery swapping system is very important. Summary of the invention

[0003] In order to solve at least one of the technical problems mentioned above, the present disclosure proposes a battery swap system scheduling method, device, electronic device and storage medium.

[0004] On the one hand, the present invention provides a method for scheduling a battery swap system, comprising: Obtain the number of fully charged battery packs in the battery swap system, as well as a first preset battery pack threshold and a second preset battery pack threshold configured for the battery swap system, the first preset battery pack threshold being less than the second preset battery pack threshold, and the second preset battery pack threshold being less than the total number of battery packs in the battery swap system; When the number of fully charged battery packs is less than or equal to a first preset battery pack threshold, controlling the battery swap system to enter a forced charging state; When the number of fully charged battery packs is greater than a first preset battery pack threshold and less than or equal to a second preset battery pack threshold, the battery swap system is controlled to enter a charging priority state, wherein the charging priority state indicates that the battery swap system is preferentially configured as a charging state between a charging state and a discharging state; When the number of fully charged battery packs is greater than the second preset battery pack threshold, the battery swap system is controlled to enter a discharge priority state. The discharge priority state indicates that the battery swap system is configured to a discharge state when the expected discharge power corresponding to the battery swap system is a positive value.

[0005] In an optional embodiment, after controlling the battery swapping system to enter the charging priority state, the method further includes: Determine the upper power limit, lower power limit and expected charging power corresponding to the battery swap system; When the expected charging power is less than the lower power limit, the lower power limit is configured as the expected power of the battery swap system; When the expected charging power is greater than or equal to the lower power limit and less than or equal to the upper power limit, the expected charging power is configured as the expected power of the battery swapping system; When the expected charging power is greater than the power upper limit value, the power upper limit value is configured as the expected power of the battery swap system.

[0006] In an optional embodiment, after controlling the battery swapping system to enter a discharge priority state, the method further includes: Determine the upper power limit, lower power limit, expected charging power, and expected discharging power corresponding to the battery swap system; When the expected discharge power is a positive value, the expected discharge power is configured as the intermediate power of the battery swap system; When the expected discharge power is a non-positive value, the expected charging power is configured as the intermediate power of the battery swap system; When the intermediate power is less than the lower power limit, the lower power limit is configured as the expected power of the battery swap system; When the intermediate power is greater than or equal to the lower power limit and less than or equal to the upper power limit, the intermediate power is configured as the expected power of the battery swap system; When the intermediate power is greater than the upper power limit, the upper power limit is configured as the expected power of the battery swap system.

[0007] In an optional embodiment, the charging and swapping station where the battery swapping system is located includes multiple charging piles, and the upper power limit value and the lower power limit value are obtained by the following steps, including: Determine the transformer capacity corresponding to the charging and swapping station and the total power consumption corresponding to multiple charging piles; The difference between the transformer capacity and the total power consumption is determined as the upper power limit value; The inverse of the sum of the transformer capacity and the total power consumption is determined as the power lower limit.

[0008] In an optional embodiment, after controlling the battery swapping system to enter a forced charging state, the method further includes: Determine the expected charging power corresponding to the battery swap system; Configure the expected charging power as the expected power of the battery swap system.

[0009] In an optional embodiment, the expected charging power is obtained by the following steps, including: Determine the required voltage and required current corresponding to each partially charged battery pack in the battery swap system; Calculate the expected charging power based on the required voltage and current.

[0010] In a second aspect, the present invention further provides a battery swap system scheduling device, comprising: An acquisition module, used to obtain the number of fully charged battery packs in the battery swap system, and a first preset battery pack threshold and a second preset battery pack threshold configured for the battery swap system, the first preset battery pack threshold is less than the second preset battery pack threshold, and the second preset battery pack threshold is less than the total number of battery packs in the battery swap system; A first scheduling module, used to control the battery swap system to enter a forced charging state when the number of fully charged battery packs is less than or equal to a first preset battery pack threshold; A second scheduling module is used to control the battery swap system to enter a charging priority state when the number of fully charged battery packs is greater than a first preset battery pack threshold and less than or equal to a second preset battery pack threshold, wherein the charging priority state indicates that the battery swap system is preferentially configured as a charging state between a charging state and a discharging state; The third scheduling module is used to control the battery swap system to enter the discharge priority state when the number of fully charged battery packs is greater than the second preset battery pack threshold. The discharge priority state indicates that the battery swap system is configured to be in the discharge state when the expected discharge power corresponding to the battery swap system is a positive value.

[0011] In a third aspect, the present invention further provides an electronic device, comprising: processor; a memory for storing processor-executable instructions; Among them, the processor is used to execute instructions to implement the above-mentioned battery swap system scheduling method.

[0012] In a fourth aspect, the present invention further provides a storage medium, which, when instructions in the storage medium are executed by a processor of an electronic device, enables the electronic device to execute the above-mentioned battery exchange system scheduling method.

[0013] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0014] The implementation of this disclosure has the following beneficial effects: Obtain the number of fully charged battery packs in the battery swap system, as well as the first preset battery pack threshold and the second preset battery pack threshold configured for the battery swap system, the first preset battery pack threshold being less than the second preset battery pack threshold, and the second preset battery pack threshold being less than the total number of battery packs in the battery swap system; when the number of fully charged battery packs is less than or equal to the first preset battery pack threshold, control the battery swap system to enter a forced charging state; when the number of fully charged battery packs is greater than the first preset battery pack threshold and less than or equal to the second preset battery pack threshold, control the battery swap system to enter a charging priority state, the charging priority state indicating that the battery swap system is preferentially configured to a charging state between a charging state and a discharging state; when the number of fully charged battery packs is greater than the second preset battery pack threshold, control the battery swap system to enter a discharge priority state, the discharge priority state indicating that the battery swap system is configured to a discharging state when the expected discharge power corresponding to the battery swap system is a positive value.

[0015] The present disclosure divides the charge and discharge states of the battery swap system into a forced charging state, a charging priority state and a discharging priority state according to the relationship between the number of fully-charged battery packs and the first preset battery pack threshold and the second preset battery pack threshold. This allows the charge and discharge states of the battery swap system to be adjusted as the number of fully-charged battery packs changes. The relationship between the number of fully-charged battery packs of the battery swap system and the first preset battery pack threshold and the second preset battery pack threshold can reflect the energy reserve state of the battery swap system, thereby scheduling the charge and discharge states of the battery swap system according to the energy reserve situation of the battery swap system itself, making the scheduling of the battery swap system more reasonable.

[0016] Further features and aspects of the present disclosure will become apparent from the following detailed description of exemplary embodiments with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions and advantages of the embodiments of the present application or the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the prior art description. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. The drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present disclosure, and are used together with the specification to explain the principles of the present disclosure, and do not constitute an improper limitation of the present disclosure.

[0018] Figure 1 is a schematic diagram of an implementation environment according to an exemplary embodiment; Figure 2 is a flow chart of a method for scheduling a power swap system according to an exemplary embodiment; Figure 3is a schematic diagram of a charging and discharging priority interval axis according to an exemplary embodiment; Figure 4 is a flowchart of expected power configuration in a charging priority state according to an exemplary embodiment; Figure 5 is a flow chart of expected power configuration in a discharge priority state according to an exemplary embodiment; Figure 6 is a schematic diagram of a software application framework of a battery swap scheduling method according to an exemplary embodiment; Figure 7 is a schematic diagram of an abstract data structure of an object layer according to an exemplary embodiment; Figure 8 is a schematic diagram of a multi-charger data link according to an exemplary embodiment; Fig. 9 is a schematic diagram of a power exchange system scheduling device according to an exemplary embodiment; Fig.10 It is a block diagram of an electronic device for battery swap system scheduling according to an exemplary embodiment. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of this specification to clearly and completely describe the technical solutions in the embodiments of this specification. Obviously, the described embodiments are only part of the embodiments of this specification, not all of the embodiments. Based on the embodiments in this specification, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product, or server that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products, or devices.

[0021] Various exemplary embodiments, features and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. The same reference numerals in the drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the drawings, the drawings are not necessarily drawn to scale unless otherwise indicated. The word "exemplary" is used specifically herein to mean "serving as an example, embodiment, or illustrative". Any embodiment described herein as "exemplary" is not necessarily to be construed as being superior or better than other embodiments.

[0022] The term "and / or" herein is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the term "at least one" herein represents any combination of at least two of any one or more of a plurality of. For example, including at least one of A, B, and C can represent including any one or more elements selected from the set consisting of A, B, and C.

[0023] In addition, in order to better illustrate the present disclosure, numerous specific details are given in the following specific embodiments. It should be understood by those skilled in the art that the present disclosure can also be implemented without certain specific details. In some examples, methods, means, components and circuits well known to those skilled in the art are not described in detail in order to highlight the subject matter of the present disclosure.

[0024] See also Figure 1 , Figure 1 is a schematic diagram of an application environment according to an exemplary embodiment. Figure 1 As shown, the application environment may include a server 01 and a terminal 02 .

[0025] In an optional embodiment, the server 01 can perform calculations on the battery swap system scheduling method. Specifically, the server 01 can be an independent physical server, or a server cluster or distributed system composed of multiple physical servers, or a cloud server that provides basic cloud computing services such as cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communications, middleware services, domain name services, security services, content delivery networks (CDN), and big data and artificial intelligence platforms.

[0026] In an optional embodiment, the terminal 02 may perform calculation processing in combination with the battery swap system scheduling method of the server 01. Specifically, the terminal 02 may be a controller or control module configured in the battery swap system or the charging and swapping station where the battery swap system is located.

[0027] For example, the number of fully charged battery packs in the battery swap system is obtained through terminal 02 and transmitted to server 01. Server 01 obtains the number of fully charged battery packs and the first preset battery pack threshold and the second preset battery pack threshold configured for the battery swap system. The first preset battery pack threshold is less than the second preset battery pack threshold, and the second preset battery pack threshold is less than the total number of battery packs in the battery swap system. When the number of fully charged battery packs is less than or equal to the first preset battery pack threshold, a forced charging instruction is issued. When the number of fully charged battery packs is greater than the first preset battery pack threshold and less than or equal to the second preset battery pack threshold, a charging priority instruction is issued. When the number of fully charged battery packs is greater than the second preset battery pack threshold, a discharging priority instruction is issued. When the terminal 02 receives a forced charging instruction, it controls the battery swap system to enter a forced charging state. When it receives a forced charging instruction, it controls the battery swap system to enter a forced charging state, and the charging priority state indicates that the battery swap system is preferentially configured as a charging state between a charging state and a discharging state. When it receives a discharging charging instruction, it controls the battery swap system to enter a discharging priority state, and the discharging priority state indicates that the battery swap system is configured as a discharging state when the expected discharge power corresponding to the battery swap system is a positive value.

[0028] In addition, it should be noted that Figure 1 What is shown is only one application environment provided by the present disclosure. In actual application, other application environments may also be included.

[0029] In the embodiments of this specification, the server 01 and the terminal 02 may be directly or indirectly connected via wired or wireless communication, which is not limited in this disclosure.

[0030] Figure 2 is a flow chart of a method for scheduling a power swap system according to an exemplary embodiment. Figure 2 As shown, the battery swap system scheduling method includes the following: Step S201: Obtain the number of fully charged battery packs in the battery swap system, as well as the first preset battery pack threshold and the second preset battery pack threshold configured for the battery swap system, the first preset battery pack threshold being smaller than the second preset battery pack threshold, and the second preset battery pack threshold being smaller than the total number of battery packs in the battery swap system.

[0031] In the disclosed embodiment, when the battery pack of the vehicle needs to be recharged, the battery pack to be recharged can be removed and placed in the battery compartment of the battery exchange system for recharging, and the fully charged battery pack in the battery compartment can be assembled into the vehicle to complete the vehicle battery exchange. Therefore, there will be fully charged and partially charged battery packs in the battery exchange system. The battery exchange system can be composed of multiple chargers, each of which is provided with a battery compartment, and the battery compartment of each charger includes multiple battery packs. The battery packs are connected to the station microgrid where the battery exchange system is located through the lines in the corresponding chargers, and the data related to the battery packs and the lines in the corresponding chargers are fed back to the controller of the corresponding charger through network cable communication. A host can be set among the multiple chargers in the battery exchange system, and the remaining chargers are all slaves. In the battery exchange station system with multiple chargers, each charger interacts through a CAN bus. The default host address is 0, and the slave address starts from 1. The address of slave A is 1, and the address of slave B is 2, arranged in sequence, and the addresses are not repeated. The scheduling of the charging and discharging status of the battery exchange system is the responsibility of the host.

[0032] In the embodiment of the present disclosure, a method for obtaining the number of fully charged battery packs in the battery swap system can be to collect the battery power status corresponding to each battery pack through a battery pack power collection device configured in each charger to obtain the number of fully charged battery packs in each charger. Each slave sends the number information of its own fully charged battery packs to the host through communication between chargers, and the host summarizes the data to obtain the number of fully charged battery packs in the battery swap system.

[0033] In the disclosed embodiment, the operation-related data in each slave machine is sent to the host machine through communication between chargers and managed by the host machine. The method for obtaining the first preset battery pack threshold and the second preset battery pack threshold configured for the battery swapping system can be that the charging and swapping station controller or the operation cloud platform communicates with the host machine in the battery swapping system through a network cable to obtain the operation data of each charger in the battery swapping system, and formulate the first preset battery pack threshold and the second preset battery pack threshold according to the operation data of each charger and send it to the host machine. The above-mentioned method of formulating the first preset battery pack threshold and the second preset battery pack threshold according to the operation data of each charger can be to determine the total number of battery packs corresponding to the battery swapping system according to the number of battery packs running in each charger, and determine the first preset battery pack threshold and the second preset battery pack threshold according to a certain percentage of the total number of battery packs.

[0034] Figure 3 is a schematic diagram of a charge and discharge priority interval axis according to an exemplary embodiment. The first preset battery group threshold It can be the number of battery packs that is a first preset percentage of the total number of battery packs X, such as the number of battery packs that is 20% of the total number of battery packs as the first preset battery pack threshold , the second preset battery pack threshold It can be the number of battery packs that is a second preset percentage of the total number of battery packs X, such as the number of battery packs that is 80% of the total number of battery packs is the second preset battery pack threshold , the first preset percentage is less than the second preset percentage.

[0035] Step S202: When the number of fully charged battery packs is less than or equal to a first preset battery pack threshold, control the battery exchange system to enter a forced charging state.

[0036] In the disclosed embodiment, when the number of fully charged battery packs is less than or equal to the first preset battery pack threshold, it indicates that the current power reserve level of the battery swap system is low and is not suitable for efficient discharge operation. Therefore, in this case, the battery swap system is controlled to enter a forced charging state to charge the battery compartment of the battery swap system.

[0037] In an optional embodiment, after controlling the battery swap system to enter a forced charging state, the method also includes: determining an expected charging power corresponding to the battery swap system; and configuring the expected charging power as the expected power of the battery swap system.

[0038] In an optional embodiment, the expected charging power is obtained through the following steps, including: determining the required voltage and required current corresponding to each partially charged battery pack in the battery exchange system; and calculating the expected charging power based on the required voltage and required current.

[0039] In the embodiment of the present disclosure, the required voltage and required current corresponding to each partially charged battery pack in the battery swap system can be determined by referring to the rated configuration parameters of each battery pack, and the expected charging power can be calculated according to the required voltage and required current according to the following formula (1): (1) In formula (1), is the expected charging power, is the required voltage corresponding to the ith battery pack, is the demand current corresponding to the i-th battery pack, m represents the total number of uncharged battery packs in the battery swap system (i≤m), and ∑ represents the summation calculation.

[0040] Based on the above, in the embodiment of the present disclosure, by determining the required voltage and required current corresponding to each partially charged battery pack in the battery swap system, and calculating the expected charging power based on the required voltage and required current, the total required power of each partially charged battery pack in the battery swap system can be used to determine the expected charging power, so as to meet the charging needs of each partially charged battery pack.

[0041] After calculating the expected charging power, the expected charging power is directly configured as the expected power of the battery swap system in the forced charging state. That is, when the number of fully charged battery packs n≤ When the battery swap system is forced to charge, the expected power = .

[0042] Since the expected power in the forced charging state indicates the total charging power required by the battery swap system, after configuring the expected charging power as the expected power of the battery swap system, the host can also redistribute the expected power according to the number of uncharged battery packs of each charger, and configure the corresponding expected charging power for each charger. The sum of the expected charging powers configured for each charger is less than or equal to the expected power. Each charger can also allocate the expected charging power of the charger according to the operating status of the battery pack inside it, and obtain the expected charging power of the battery pack corresponding to each partially charged battery pack. The sum of the expected charging power of the battery pack corresponding to each partially charged battery pack is less than or equal to the expected power. During the charging process of each partially charged battery pack, the actual charging power of each partially charged battery pack is less than or equal to the expected charging power of the battery pack corresponding to each partially charged battery pack.

[0043] Based on the above, it can be known that in the embodiment of the present disclosure, by configuring the expected charging power corresponding to the battery swap system as the expected power of the battery swap system in the forced charging state, the battery swap system can charge the battery pack according to the expected charging power to meet the battery pack's power replenishment needs.

[0044] Step S203: When the number of fully charged battery packs is greater than the first preset battery pack threshold and less than or equal to the second preset battery pack threshold, the battery swap system is controlled to enter the charging priority state, and the charging priority state indicates that the battery swap system is preferentially configured as the charging state between the charging state and the discharging state.

[0045] In the disclosed embodiment, the charging state indicates that the station microgrid supplies power to the battery compartment of the battery swapping system, and the discharging state indicates that the battery swapping system inverts the power of the battery pack in the battery compartment into the station microgrid.

[0046] When the number of fully charged battery packs is greater than the first preset battery pack threshold and less than or equal to the second preset battery pack threshold, it indicates that the current battery swap system has a moderate reserve level of power. Since the primary function of the battery swap system is to charge the battery packs in the battery compartment, when the reserve level of the battery swap system is moderate, the battery swap system can be configured to be in the charging state in the charging state and the discharging state, and therefore, the battery swap system is controlled to enter the charging priority state.

[0047] Figure 4 is a flowchart of an expected power configuration in a charging priority state according to an exemplary embodiment. In an optional embodiment, after controlling the battery swap system to enter the charging priority state, the method further includes: Step S401: Determine the upper power limit, lower power limit and expected charging power corresponding to the battery swap system.

[0048] In the embodiment of the present disclosure, the calculation process of the expected charging power is as shown in the above formula (1), which will not be described in detail here.

[0049] In an optional embodiment, the charging and swapping station where the battery swapping system is located includes multiple charging piles, and the multiple charging piles and the battery swapping system are connected to the charging and swapping station microgrid through a transformer. The upper power limit and the lower power limit are obtained by the following steps, including: Determine the transformer capacity corresponding to the charging and swapping station and the total power consumption corresponding to multiple charging piles; determine the difference between the transformer capacity and the total power consumption as the upper power limit; determine the inverse of the sum of the transformer capacity and the total power consumption as the lower power limit.

[0050] In the embodiment of the present disclosure, the transformer capacity and the total power consumption corresponding to the multiple charging piles can be determined by referring to the rated configuration parameters of the transformer and each charging pile. The multiple charging piles include ordinary charging piles and super charging piles. The rated power corresponding to an ordinary charging pile is recorded as , the rated power corresponding to a supercharger is , then the total power consumption corresponding to multiple charging piles can be calculated by the following formula (2): (2) In formula (2), is the total power consumption corresponding to multiple charging piles, is the rated power corresponding to the ordinary charging pile, is the rated power corresponding to the supercharging pile, M represents the number of ordinary charging piles in the charging and swapping station, N represents the number of supercharging piles in the charging and swapping station, and ∑ represents the sum calculation.

[0051] Furthermore, the upper power limit can be calculated by the following formula (3): (3) In formula (3), is the upper power limit, is the transformer capacity, is the total power consumption.

[0052] Furthermore, the upper power limit can be calculated by the following formula (4): (4) In formula (4), is the lower power limit, is the transformer capacity, is the total power consumption.

[0053] Based on the above, it can be known that in the embodiment of the present disclosure, by determining the difference between the transformer capacity and the total power consumption as the upper power limit value; and determining the inverse of the sum of the transformer capacity and the total power consumption as the lower power limit value, the upper power limit value and the lower power limit value corresponding to the battery swap system can fully consider the impact of the power consumption of other charging piles in the station on the input and output power of the battery swap system, thereby ensuring the safety of the station operation.

[0054] Step S402: When the expected charging power is less than the lower power limit, the lower power limit is configured as the expected power of the battery swap system.

[0055] Step S403: When the expected charging power is greater than or equal to the lower power limit and less than or equal to the upper power limit, the expected charging power is configured as the expected power of the battery swapping system.

[0056] Step S404: When the expected charging power is greater than the upper power limit, the upper power limit is configured as the expected power of the battery swap system.

[0057] In the embodiment of the present disclosure, the expected power in the charging priority state The power upper limit of the battery swap system , power lower limit and expected charging power After calculating the expected charging power, in the charging priority state, when the expected charging power <Power lower limit When the expected power = ; When the power lower limit ≤ expected charging power ≤Power upper limit When the expected power = ; When the power upper limit <Expected charging power When the expected charging power = .

[0058] Since the expected power in the charging priority state indicates the total charging power required by the battery swap system, after configuring the expected charging power as the expected power of the battery swap system, the host can also redistribute the expected power according to the number of uncharged battery packs of each charger, and configure the corresponding expected charging power for each charger. The sum of the expected charging powers configured for each charger is less than or equal to the expected power. Each charger can also allocate the expected charging power of the charger according to the operating status of the battery pack inside it, and obtain the expected charging power of the battery pack corresponding to each partially charged battery pack. The sum of the expected charging power of the battery pack corresponding to each partially charged battery pack is less than or equal to the expected power. During the charging process of each partially charged battery pack, the actual charging power of each partially charged battery pack is less than or equal to the expected charging power of the battery pack corresponding to each partially charged battery pack.

[0059] Based on the above, in the embodiment of the present disclosure, by configuring the expected power corresponding to the battery swap system to a charging power value between the upper power limit and the lower power limit in the charging priority state, the battery swap system can prioritize supplying power to the battery pack at a charging power value between the upper power limit and the lower power limit, thereby meeting the battery pack's power replenishment needs.

[0060] Step S204: When the number of fully charged battery packs is greater than a second preset battery pack threshold, the battery swap system is controlled to enter a discharge priority state. The discharge priority state indicates that the battery swap system is configured to a discharge state when the expected discharge power corresponding to the battery swap system is a positive value.

[0061] In the embodiment of the present disclosure, when the number of fully charged battery packs is greater than the second preset battery pack threshold, it indicates that the current battery exchange system has a high reserve level of electricity and can meet the demand for a certain amount of power replenishment to the charging station microgrid. Therefore, in this case, the battery exchange system is controlled to enter a discharge priority state.

[0062] Figure 5 is a flow chart of expected power configuration in a discharge priority state according to an exemplary embodiment. In an optional embodiment, after controlling the battery swap system to enter the discharge priority state, the method further includes: Step S501: Determine the upper power limit, lower power limit, expected charging power and expected discharging power corresponding to the battery swap system.

[0063] In the disclosed embodiment, the upper power limit, lower power limit, and expected charging power corresponding to the battery swap system are calculated according to the above formulas (3), (4), and (1), respectively, and will not be elaborated here. The expected discharge power can be analyzed by the operation cloud platform according to the power consumption of the microgrid where the charging and swapping station is located, and the expected discharge power can be sent to the battery swap system. .

[0064] Step S502: When the expected discharge power is a positive value, the expected discharge power is configured as the intermediate power of the battery swap system.

[0065] Step S503: When the expected discharge power is a non-positive value, the expected charging power is configured as the intermediate power of the battery swap system.

[0066] In the embodiment of the present disclosure, when the desired discharge power >0, intermediate power = , at this time the battery swap system enters the discharge state; when the expected discharge power ≤0, intermediate power = , at this time the battery replacement system enters the charging state.

[0067] Step S504: When the intermediate power is less than the lower power limit, the lower power limit is configured as the expected power of the battery swap system.

[0068] Step S505: When the intermediate power is greater than or equal to the lower power limit and less than or equal to the upper power limit, the intermediate power is configured as the expected power of the battery swap system.

[0069] Step S506: When the intermediate power is greater than the upper power limit, the upper power limit is configured as the expected power of the battery swap system.

[0070] In the embodiment of the present disclosure, the expected power in the discharge priority state The power upper limit of the battery swap system , power lower limit , expected discharge power and expected charging power In the discharge priority state, when the intermediate power <Power lower limit When the expected power = ; When the power lower limit ≤ Middle power ≤Power upper limit When the expected power = ; When the power upper limit <Middle power When the expected charging power = .

[0071] Since the expected discharge power in the discharge priority state >0, the battery swap system enters the discharge state. The expected power indicates the electric power that the battery swap system inverts to the station microgrid. After configuring the expected power as the expected power of the battery swap system, the host can also redistribute the expected power according to the number of fully charged battery packs of each charger, and configure the corresponding expected discharge power of each charger. The sum of the expected discharge powers of each charger is less than or equal to the expected power. Each charger can also allocate the expected discharge power of the charger according to the operating conditions of the battery packs inside it, and obtain the expected discharge power of the battery packs corresponding to each fully charged battery pack. The sum of the expected discharge power of the battery packs corresponding to each fully charged battery pack is less than or equal to the expected power. During the charging process of each fully-charged battery pack, the actual discharge power of each fully-charged battery pack is less than or equal to the expected discharge power of the battery pack corresponding to each fully-charged battery pack.

[0072] Since the expected discharge power in the discharge priority state ≤0, the battery swap system enters the charging state. The expected power indicates the total charging power required by the battery swap system. After configuring the expected power as the expected power of the battery swap system, the host can also redistribute the expected power according to the number of uncharged battery packs of each charger, and configure the corresponding expected charging power for each charger. The sum of the expected charging powers configured for each charger is less than or equal to the expected power Each charger can also allocate the expected charging power of the charger according to the operating status of the battery pack inside it, and obtain the expected charging power of the battery pack corresponding to each partially charged battery pack. The sum of the expected charging power of the battery pack corresponding to each partially charged battery pack is less than or equal to the expected power. During the charging process of each partially charged battery pack, the actual charging power of each partially charged battery pack is less than or equal to the expected charging power of the battery pack corresponding to each partially charged battery pack.

[0073] Based on the above, it can be known that in the embodiment of the present disclosure, when the expected discharge power is positive, by configuring the expected power corresponding to the battery swap system as the expected discharge power, the battery swap system can be inverted into the station microgrid with the expected discharge power when the battery swap system is in the discharge priority state and there is a discharge demand, thereby realizing the discharge of the battery swap system to the grid.

[0074] Figure 6 This is a schematic diagram of a software application framework of a battery swap scheduling method according to an exemplary embodiment. In a specific implementation, the framework runs on the controller of the charger to separate the algorithm of the battery swap scheduling method from the communication protocol and peripheral operations, which is convenient for subsequent maintenance and development. The framework is divided into the business layer, object layer, mapping layer, protocol layer and peripheral driver layer from top to bottom. The meaning and function are explained as follows: Business layer: mainly includes the relevant control logic and algorithms for implementing the battery swap scheduling method; Object layer: abstracts the attributes of business control objects to form object data structures, which are the source of business layer data and external control interfaces. Business control objects include hardware modules associated with the battery swap scheduling method. Mapping layer: used to convert the data, status and other information obtained by the protocol layer or peripheral driver layer into the data structure of the object layer to achieve the isolation of business data, communication data and driver data; Protocol layer: monitoring data analysis, parameter setting and interaction logic of communication with external devices; Peripheral driver layer: monitors the driver implementation of various peripheral devices and converts peripheral operations into standard function interfaces for use within the application.

[0075] The functions of the above-mentioned battery swap system scheduling method are located in the business layer, which mainly includes a system management module and a power execution module. Among them, the system management module is used to determine the system charging and discharging status and manage the system power allocation; the power execution module is used to execute circuit control according to the power allocated by the system management module, including module power on / off execution, charging module power control, and contactor control.

[0076] The subunits of the system power module may include a system state machine and a power allocation algorithm. The system state machine is used to manage the charging and discharging status of the battery swap system, and to set the current charging and discharging state of the system according to the first and second preset battery pack thresholds, the expected discharge power, and the total number of battery packs and the number of fully charged battery packs in the battery swap station system issued by the station controller or the remote server; the power allocation algorithm is used to set the expected power according to the expected charging power, the expected discharge power, and the charging and discharging status, and to allocate the expected power according to the current status of each battery pack, and determine the power corresponding to each battery pack.

[0077] The subunits of the power execution module include a charging module controller, a bidirectional module controller, and a contactor projection algorithm. The charging module controller outputs power to the corresponding battery pack according to the power allocated by the system power module in the charging state. When the allocated power is greater than the current maximum output power, it outputs according to the current maximum power. The bidirectional module controller is used to supplement power when the system is in the charging state according to the power allocated to each battery pack by the system power module. When the system is in the discharging state, the power of the battery pack is inverted into the microgrid according to the power allocated to each battery pack by the system power module. When the allocated power is greater than the current maximum inverter power of the module group, it is controlled according to the current maximum inverter power. The contactor projection algorithm allocates the target connected battery packs of the bidirectional module according to the power allocated to each battery pack by the system power module and the electrical wiring relationship, and controls the contactor matrix to complete the projection circuit.

[0078] Figure 7It is a schematic diagram of an abstract data structure of an object layer according to an exemplary embodiment. In order to facilitate the management of business data, communication data, and drive data, the data structure of the object layer can be designed according to the hardware modules associated with the battery swap scheduling method. The hardware modules associated with the battery swap scheduling method include servers, charging modules, bidirectional modules, DC contactors, and other parts that run the cloud platform. Therefore, server objects, charging module objects, bidirectional module objects, DC contactor objects, etc. can be abstracted in the object layer. In order to facilitate the direct management of power data, system control objects can be abstracted. The data of each of the above objects is divided into operating data and setting parameters; the operating data is real-time operating data, such as real-time sampling temperature, sampling voltage, etc.; the setting parameters are the control parameter interfaces of the equipment, such as output voltage setting values, output current setting values, etc. Among them, the operating data in the server object may include the upper power threshold of the battery swapping system, the lower power threshold of the battery swapping system, and the expected discharge power of the battery swapping system. The setting parameters in the server object may include the upper power threshold of the system effective power, the lower power threshold of the system effective power, the real-time power of the system, the status of one battery pack, the SOC (battery power) of one battery pack, the status of two battery packs, the SOC (battery power) of two battery packs, the status of three battery packs, and the SOC (battery power) of three battery packs; the operating data in the system control object includes the actual output power, and the setting parameters in the system control object include the target allocated power; the operating data in the charging module object includes input contactor feedback, input A phase voltage, input B phase voltage, input C phase voltage, output voltage, and output current. The setting parameters in the charging module object include input Input contactor control, output voltage setting value, output current setting value; the operation data in the bidirectional module object includes AC contactor feedback, AC side A phase sampling voltage, AC side B phase sampling voltage, AC side C phase sampling voltage, DC side sampling voltage, DC side sampling current, and the setting parameters in the bidirectional module object include AC contactor control, working mode (0-none, 1-rectification, 2-inversion), power supply mode (0-none, 1-current source, 2-voltage source), AC side equivalent voltage setting value, AC side equivalent current setting value, DC side voltage setting value, DC side current setting value; the operation data in the DC contactor object includes charging warehouse DC contactor feedback, contactor matrix DC contactor feedback, and the setting parameters in the DC contactor object include charging warehouse DC contactor control, contactor matrix DC contactor control. The data types of the above operation data and setting parameters are floating point (FLOAT) type or integer (INT) type data. In order to facilitate software processing and device electrical relationships, the contactor properties of the AC contactor group are classified into the charging module object and the bidirectional module object according to the connection relationship; the output DC contactor matrix of each group in the charging compartment and the contactor matrix of the energy storage part are classified into the DC contactor object.

[0079] Figure 8It is a schematic diagram of a multi-charger data link according to an exemplary embodiment. In the case of multiple chargers in the battery swap system, one of the chargers is selected as the host, and the remaining chargers are all slaves. The system power module is responsible for system-level management, so it only runs on the host; while the management execution module manages and controls each charger, so both the host and the slave include this unit. The peripheral driver layer in each charger application framework uses CAN communication to control the corresponding charging module, and the peripheral driver layer in each charger application framework also interacts through CAN communication. The protocol layer provides interactive functions for operation data and setting parameters through the configured charging module communication protocol and master-slave data chain communication protocol. The mapping layer IMU converts the data, status and other information obtained by the protocol layer or the peripheral driver layer into the data structure of the object layer. The number of charging module objects and system control objects abstracted by the object layer can correspond to the number of charging modules configured in the charger. When the number of charging modules configured in the charger is M+1, the number of charging module objects and system control objects are both M+1, and the relevant data of the corresponding charging module is abstracted in the corresponding charging module object and system control object. Each slave sends its own operating data and power settings to the host through inter-charger communication. The host's system power module sets the current charge and discharge state that the system needs to be in according to the first and second preset battery pack thresholds, expected discharge power, and the total number of battery packs and the number of fully charged battery packs in the operating data issued by the site controller or remote server. The expected power is set according to the expected charging power, expected discharge power and charging and discharging state. The expected power is allocated according to the current state of each battery pack, and the power corresponding to each battery pack is determined and allocated to the power execution module of the corresponding charger. The power execution module of each charger performs module control based on the power issued by the host and the power setting parameters to complete the scheduling.

[0080] Fig. 9 FIG. 1 is a block diagram of a battery swap system scheduling device according to an exemplary embodiment. Fig. 9 The device includes an acquisition module 901, a first scheduling module 902, a second scheduling module 903 and a third scheduling module 904, wherein: An acquisition module 901 is used to acquire the number of fully charged battery packs in the battery swap system, and a first preset battery pack threshold and a second preset battery pack threshold configured for the battery swap system, wherein the first preset battery pack threshold is less than the second preset battery pack threshold, and the second preset battery pack threshold is less than the total number of battery packs in the battery swap system; The first scheduling module 902 is used to control the battery swap system to enter a forced charging state when the number of fully charged battery packs is less than or equal to a first preset battery pack threshold; The second scheduling module 903 is used to control the battery swap system to enter a charging priority state when the number of fully charged battery packs is greater than a first preset battery pack threshold and less than or equal to a second preset battery pack threshold. The charging priority state indicates that the battery swap system is preferentially configured as a charging state in a charging state and a discharging state; The third scheduling module 904 is used to control the battery swap system to enter a discharge priority state when the number of fully charged battery packs is greater than a second preset battery pack threshold. The discharge priority state indicates that the battery swap system is configured to be in a discharge state when the expected discharge power corresponding to the battery swap system is a positive value.

[0081] In an optional embodiment, the device further comprises: The first determination module is used to determine the upper power limit, the lower power limit and the expected charging power corresponding to the battery swap system; A first configuration module is used to configure the power lower limit value to the expected power of the battery swap system when the expected charging power is less than the power lower limit value; A second configuration module is used to configure the expected charging power as the expected power of the battery swap system when the expected charging power is greater than or equal to the lower power limit value and less than or equal to the upper power limit value; The third configuration module is used to configure the power upper limit value to the expected power of the battery swap system when the expected charging power is greater than the power upper limit value.

[0082] In an optional embodiment, the device further comprises: The second determination module is used to determine the upper power limit, lower power limit, expected charging power and expected discharging power corresponding to the battery swap system; A fourth configuration module, configured to configure the expected discharge power as the intermediate power of the battery swap system when the expected discharge power is a positive value; A fifth configuration module, configured to configure the expected charging power as the intermediate power of the battery swap system when the expected discharge power is a non-positive value; A sixth configuration module, configured to configure the power lower limit value to the expected power of the battery swap system when the intermediate power is less than the power lower limit value; A seventh configuration module, configured to configure the intermediate power as the expected power of the battery swap system when the intermediate power is greater than or equal to the lower power limit and less than or equal to the upper power limit; The eighth configuration module is used to configure the power upper limit value to the expected power of the battery swap system when the intermediate power is greater than the power upper limit value.

[0083] In an optional embodiment, the charging and swapping station where the battery swapping system is located includes a plurality of charging piles, and the device further includes: A first determination unit is used to determine the transformer capacity corresponding to the charging and swapping station and the total power consumption corresponding to the plurality of charging piles; A first calculation unit, used for determining a difference between the transformer capacity and the total power consumption as a power upper limit value; The second calculation unit is used to determine the inverse of the sum of the transformer capacity and the total power consumption as the power lower limit value.

[0084] In an optional embodiment, the device further comprises: A second determining unit, used to determine an expected charging power corresponding to the battery swapping system; The first configuration unit is used to configure the expected charging power as the expected power of the battery replacement system.

[0085] In an optional embodiment, the device further comprises: A third determination unit is used to determine the required voltage and required current corresponding to each partially charged battery pack in the battery swap system; The third calculation unit is used to calculate the expected charging power according to the required voltage and the required current.

[0086] In the embodiments of the present application, the term "module" or "unit" refers to a computer program or a part of a computer program with a predetermined function, and works together with other related parts to achieve a predetermined goal, and can be implemented in whole or in part by using software, hardware such as processing circuits or memories, or a combination thereof. Similarly, one processor or multiple processors or memories can be used to implement one or more modules or units. In addition, each module or unit can be part of an overall module or unit that includes the function of the module or unit.

[0087] In an exemplary embodiment, an electronic device is also provided, including: a processor; and a memory for storing instructions executable by the processor; wherein the processor is used for the instructions to implement the battery swap system scheduling method as in the embodiment of the present disclosure.

[0088] Fig.10 is a block diagram of an electronic device for scheduling a battery swap system according to an exemplary embodiment. The electronic device may be a terminal, and its internal structure diagram may be as shown in FIG. Fig.10As shown. The electronic device includes a processor, a memory, a network interface, a display screen and an input device connected via a system bus. Among them, the processor of the electronic device is used to provide computing and control capabilities. The memory of the electronic device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The network interface of the electronic device is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor, a method for scheduling a battery replacement system is implemented. The display screen of the electronic device can be a liquid crystal display screen or an electronic ink display screen, and the input device of the electronic device can be a touch layer covering the display screen, or a button, trackball or touchpad provided on the housing of the electronic device, or an external keyboard, touchpad or mouse, etc. Those skilled in the art will understand that Fig.10 The structure shown in the figure is merely a block diagram of a partial structure related to the scheme of the present disclosure, and does not constitute a limitation on the electronic device to which the scheme of the present disclosure is applied. The specific electronic device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0089] In an exemplary embodiment, a storage medium is also provided. When the instructions in the storage medium are executed by a processor of an electronic device, the electronic device can execute the battery swap system scheduling method in the embodiment of the present disclosure. In an exemplary embodiment, a computer program product containing instructions is also provided. The computer program product includes a computer program. The computer program is stored in a readable storage medium. At least one processor of a computer device reads and executes the computer program from the readable storage medium, so that the device executes the battery exchange system scheduling method in the embodiment of the present disclosure.

[0090] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided by the present disclosure can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

[0091] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. The present disclosure is intended to cover any variations, uses or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The description and examples are to be considered exemplary only, and the true scope and spirit of the present disclosure are indicated by the claims.

[0092] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A method for dispatching a battery swap system, characterized in that: The method comprises: Obtain the number of fully charged battery packs in the battery swap system, as well as a first preset battery pack threshold and a second preset battery pack threshold configured for the battery swap system, wherein the first preset battery pack threshold is less than the second preset battery pack threshold, and the second preset battery pack threshold is less than the total number of battery packs in the battery swap system; When the number of the fully charged battery packs is less than or equal to the first preset battery pack threshold, controlling the battery replacement system to enter a forced charging state; When the number of fully charged battery packs is greater than the first preset battery pack threshold and less than or equal to the second preset battery pack threshold, controlling the battery swap system to enter a charging priority state, wherein the charging priority state indicates that the battery swap system is preferentially configured as a charging state between a charging state and a discharging state; When the number of fully charged battery packs is greater than the second preset battery pack threshold, the battery exchange system is controlled to enter a discharge priority state, and the discharge priority state indicates that the battery exchange system is configured to be in a discharge state when the expected discharge power corresponding to the battery exchange system is a positive value.

2. The method according to claim 1, characterized in that After controlling the battery swap system to enter a charging priority state, the method further includes: Determine the upper power limit, lower power limit and expected charging power corresponding to the battery swap system; When the expected charging power is less than the power lower limit, configuring the power lower limit to the expected power of the battery swap system; When the expected charging power is greater than or equal to the lower power limit and less than or equal to the upper power limit, configuring the expected charging power as the expected power of the battery swapping system; When the expected charging power is greater than the power upper limit value, the power upper limit value is configured as the expected power of the battery exchange system.

3. The method according to claim 1, characterized in that After controlling the battery swap system to enter a discharge priority state, the method further includes: Determine the upper power limit, lower power limit, expected charging power and expected discharging power corresponding to the battery swap system; When the expected discharge power is a positive value, configuring the expected discharge power as the intermediate power of the battery swap system; When the expected discharge power is a non-positive value, configuring the expected charging power as the intermediate power of the battery swapping system; When the intermediate power is less than the power lower limit value, configuring the power lower limit value as the expected power of the power exchange system; When the intermediate power is greater than or equal to the lower power limit and less than or equal to the upper power limit, configuring the intermediate power as the expected power of the battery swapping system; When the intermediate power is greater than the upper power limit, the upper power limit is configured as the expected power of the battery exchange system.

4. The method according to claim 2 or 3, characterized in that: The charging and swapping station where the battery swapping system is located includes a plurality of charging piles, and the upper power limit value and the lower power limit value are obtained by the following steps, including: Determine the transformer capacity corresponding to the charging and swapping station and the total power consumption corresponding to the plurality of charging piles; Determine the difference between the transformer capacity and the total power consumption as the upper power limit value; The inverse of the sum of the transformer capacity and the total power consumption is determined as the power lower limit value.

5. The method according to claim 1, characterized in that After controlling the battery replacement system to enter a forced charging state, the method further includes: Determining the expected charging power corresponding to the battery swapping system; The expected charging power is configured as the expected power of the battery exchange system.

6. The method according to any one of claims 2, 3 and 5, characterized in that: The expected charging power is obtained by the following steps, including: Determine the required voltage and required current corresponding to each partially charged battery pack in the battery replacement system; The expected charging power is calculated according to the required voltage and the required current.

7. A battery swap system dispatching device, characterized in that: The device comprises: An acquisition module, used to acquire the number of fully charged battery packs in the battery swap system, and a first preset battery pack threshold and a second preset battery pack threshold configured for the battery swap system, wherein the first preset battery pack threshold is less than the second preset battery pack threshold, and the second preset battery pack threshold is less than the total number of battery packs in the battery swap system; A first scheduling module, configured to control the battery swap system to enter a forced charging state when the number of the fully charged battery packs is less than or equal to the first preset battery pack threshold; A second scheduling module is used to control the battery swap system to enter a charging priority state when the number of the fully charged battery packs is greater than the first preset battery pack threshold and less than or equal to the second preset battery pack threshold, wherein the charging priority state indicates that the battery swap system is preferentially configured as a charging state between a charging state and a discharging state; The third scheduling module is used to control the battery exchange system to enter a discharge priority state when the number of fully charged battery packs is greater than the second preset battery pack threshold. The discharge priority state indicates that the battery exchange system is configured to be in a discharge state when the expected discharge power corresponding to the battery exchange system is a positive value.

8. An electronic device, characterized in that: include: processor; a memory for storing instructions executable by the processor; Wherein, the processor is used for the instructions to implement the battery swap system scheduling method as described in any one of claims 1 to 6.

9. A storage medium, characterized in that: When the instructions in the storage medium are executed by a processor of an electronic device, the electronic device is enabled to execute the battery swap system scheduling method as described in any one of claims 1 to 6.

10. A computer program product, characterized in that The computer program product includes a computer program, which is stored in a readable storage medium. At least one processor of a computer device reads and executes the computer program from the readable storage medium, so that the device executes the battery exchange system scheduling method as described in any one of claims 1 to 6.

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