Power supply scheduling method and device for multiple power supplies, equipment and medium

Abstract

The invention discloses a power supply scheduling method, device and equipment for multiple power supplies and a medium, and the method comprises the steps: controlling a main power supply to supply power to a charging body through a charging pile when a charging demand sent by the charging body is received; detecting whether the power demand of the charging body is equal to or less than the input power of the main power supply; if the input power is equal to or less than the input power of the main power supply, continuing to control the main power supply to supply power to the charging body through the charging pile; and if the input power is greater than the input power of the main power supply, controlling at least one auxiliary power supply to cooperate with the main power supply to supply power to the charging body through the charging pile. Power can be flexibly supplied according to the power demand of the charging body, and when the demand is smaller than the input power of the main power supply, the main power supply independently supplies power; and when the demand is larger than the preset power demand, the auxiliary power supply is allocated to cooperate with the main power supply to supply power together, so that the charging body can obtain sufficient power, and the charging requirements of different charging bodies in various power demand scenes can be met.

Description

Technical Field

[0001] The present invention relates to the technical field of power supply scheduling control, and in particular to a power supply scheduling method, device, equipment and medium for multiple power supply sources. Background Art

[0002] With the continuous advancement of technology, the increasing popularity of various electrical devices, especially rechargeable devices such as electric vehicles and power tools, has placed higher demands on the stability and efficiency of power supply systems. Traditional single-source power supply methods are no longer able to meet diverse power demands and power loads during peak periods.

[0003] In some power supply scenarios, if we only rely on municipal power supply, when the electricity demand suddenly increases and exceeds the power supply capacity of the municipal power supply, problems such as voltage instability and power interruption will occur, seriously affecting the normal use of the charging unit and may even damage the equipment. The photovoltaic power generation system is subject to weather and time restrictions, and diesel generators have noise pollution, emission pollution and high operating costs. The capacity of the battery energy storage system may also be unable to meet the long-term needs of high-power charging units under certain circumstances. Therefore, it is impossible to flexibly and intelligently allocate the power supply of different power sources according to the real-time power requirements of the charging unit, resulting in energy waste, poor power supply stability and other problems. Summary of the Invention

[0004] In order to overcome the deficiencies of existing technical solutions, embodiments of the present invention provide a power supply scheduling method, apparatus, device and medium for multiple power supply sources.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] In a first aspect, an embodiment of the present invention provides a power supply scheduling method for multiple power sources, the power supply scheduling method being applied to a controller of a solar-storage direct-flexible system, the controller being controlled and connected to multiple power sources, each of which includes a main power source and multiple auxiliary power sources, the main power source and each of which is electrically connected to a charging pile, the power supply scheduling method comprising:

[0007] When receiving a charging request from the charging body, controlling the main power supply to supply power to the charging body through the charging pile;

[0008] Detecting whether the power demand of the charging body is equal to or less than the input power of the main power supply;

[0009] If the input power is equal to or less than the input power of the main power supply, continue to control the main power supply to supply power to the charging object through the charging pile;

[0010] If the input power is greater than the input power of the main power supply, at least one of the auxiliary power supplies is controlled to cooperate with the main power supply to supply power to the charging object through the charging pile.

[0011] In a second aspect, an embodiment of the present invention further provides a power supply scheduling device for multiple power sources, wherein the power supply scheduling device is provided in a controller of a solar-storage direct-flexible system, wherein the controller is controlled and connected to multiple power sources, each of which includes a main power source and multiple auxiliary power sources, and the main power source and each of the auxiliary power sources are electrically connected to a charging pile, and the power supply scheduling device includes:

[0012] a control module configured to control the main power supply to supply power to the charging unit via the charging pile upon receiving a charging request from the charging unit;

[0013] a detection module, configured to detect whether the power demand of the charging unit is equal to or less than the input power of the main power supply;

[0014] If the input power is equal to or less than the input power of the main power supply, the control module continues to control the main power supply to supply power to the charging object through the charging pile;

[0015] If the input power is greater than the input power of the main power supply, the control module controls at least one of the auxiliary power supplies to cooperate with the main power supply to supply power to the charging object through the charging pile.

[0016] In a third aspect, an embodiment of the present invention further provides a computer device, comprising a processor, a network interface, a memory, and a communication bus, wherein the processor, the network interface, and the memory communicate with each other via the communication bus;

[0017] Memory for storing computer programs;

[0018] The processor is configured to implement any of the steps of the power supply scheduling method for multiple power sources described above when executing the program stored in the memory.

[0019] In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the power supply scheduling method for multiple power sources as described in any one of the above items.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] When a charging request is received from a charging unit, the main power supply is used to supply power to it. If the power demand of the charging unit is equal to or less than the input power of the main power supply, the main power supply will continue to supply power alone. If the power demand of the charging unit is greater than the input power of the main power supply, at least one auxiliary power supply will be controlled to cooperate with the main power supply to ensure that the charging unit can obtain sufficient power for normal charging. Through this hierarchical power supply method, the main power supply and auxiliary power supply are flexibly allocated according to the actual power demand of the charging unit, realizing the effective coordination of multiple power supplies, improving the reliability and flexibility of the power supply system, and being able to adapt to the charging requirements of different charging units in various power demand scenarios, thereby ensuring that all types of charging units can complete charging smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 This is a flow chart of a method for scheduling power supply of multiple power sources according to an embodiment of the present invention.

[0024] Figure 2 Schematic diagram of an application scenario of a power supply scheduling method for multiple power sources provided by an embodiment of the present invention.

[0025] Figure 3 It is a schematic block diagram of a power supply scheduling device for multiple power sources provided by an embodiment of the present invention.

[0026] Figure 4 It is a schematic block diagram of a computer device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0028] It will be understood that when used in this specification and the appended claims, the terms “comprises” and “comprising” indicate the presence of described features, integers, steps, operations, elements and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof.

[0029] It should also be understood that the terms used in the present specification are only for the purpose of describing particular embodiments and are not intended to limit the present invention. As used in the present specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms unless the context clearly indicates otherwise.

[0030] It should be further understood that the term "and / or" used in the present description and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

[0031] In order to solve the problems existing in the prior art that the power supplied by different power sources cannot be flexibly and intelligently allocated according to the real-time power demand of the charging body, resulting in energy waste and poor power supply stability, an embodiment of the present invention provides a power supply scheduling method for multiple power sources.

[0032] It should be noted that the power supply scheduling method of the embodiment of the present invention is applied to the controller of the photovoltaic storage direct-flexible system, and the controller is controlled and connected to multiple power supplies. Each power supply includes a main power supply and multiple auxiliary power supplies. The main power supply and each auxiliary power supply are electrically connected to the charging pile.

[0033] Specifically, the controller establishes a network connection with the charging piles of each charging station to realize data information transmission, that is, each charging station is equipped with a data collector, photovoltaic panels, energy storage batteries, charging piles and cloud data platform equipment for charging piles; the controller is controlled and connected with the data collector, photovoltaic panels, energy storage batteries and cloud data platform equipment for charging piles configured at the charging station, and the cloud data platform equipment of the charging piles is connected with the signal transmission of each charging pile; the controller can be a terminal device or management server configured in an enterprise or institution for remote control of multiple charging stations; the data collector is simultaneously connected with the photovoltaic panels and energy storage batteries for signal transmission, that is, the data collector can collect monitoring information of the photovoltaic panels and monitoring information of the energy storage batteries, and send the collected monitoring information to the controller; the controller sends instructions to the charging piles through the charging pile cloud data platform equipment. In addition, the controller can also obtain data information uploaded by the charging piles from the charging pile cloud data platform equipment.

[0034] It is understandable that the power sources in the embodiments of the present invention are respectively municipal power supply, battery energy storage system, photovoltaic power generation system and diesel generator, etc., which are not specifically limited here.

[0035] The following describes in detail the specific steps of a power supply scheduling method for multiple power sources provided by an embodiment of the present invention. Figure 1-2 As shown in , the specific steps of the power supply scheduling method include the following:

[0036] In step S110 , when a charging request from a charging body is received, the main power supply is controlled to supply power to the charging body through the charging pile.

[0037] Specifically, the controller can determine the primary power source based on preset priority rules and the current status of each power source (such as power level, operating stability, and whether it is faulty). For example, if one power source is in a normal power supply state, it is set as the primary power source. For the remaining power sources, the controller selects a secondary power source that is second only to the primary power source based on the status of each power source, such as its available power, current power generation, and startup status. Once the primary power source is determined, the controller generates corresponding control signals based on a preset control algorithm, the required parameters of the charging unit, and the characteristics of the primary power source. It can be understood that these control signals include voltage regulation signals, current regulation signals, power control signals, etc., to ensure that the primary power source can output power that meets the requirements of the charging unit. The control signals are transmitted to the control interface of the primary power source via a specific communication protocol and circuit. When the primary power source receives the control signals from the controller, its internal power management unit adjusts the power output according to the control signals. For example, if the charging element requires DC power of a certain voltage and current to charge, and the main power supply outputs AC power, the main power supply's power management unit first converts the AC power to DC and adjusts the parameters of equipment such as the inverter and transformer to adjust the voltage and current to appropriate values. The adjusted power is output from the main power supply and transmitted to the charging pile via the transmission line. Because the charging pile is equipped with charging control circuits and protection circuits, the input power can be re-tested and adjusted to ensure that the power quality meets the requirements of the charging element. The charging status, such as charging current, voltage, and temperature, is monitored in real time during the charging process. Once the charging pile confirms that the power status is good, it will establish a connection with the charging element through the charging gun, safely and stably transmitting power to the charging element to charge the charging element.

[0038] In the aforementioned embodiment, it should be noted that, since the municipal power supply is relatively stable and has a large power supply capacity, when the municipal power supply is in a normal power supply state, it is usually set as the main power supply.

[0039] It is understandable that the charging body in the embodiment of the present invention is a new energy vehicle or a new energy bicycle, etc., and the specific type is not limited here.

[0040] In step S120 , it is detected whether the power demand of the charging body is equal to or less than the input power of the main power supply.

[0041] Specifically, once the charging unit is electrically connected to the charging station, it communicates with the charging station via the charging interface, and the charging unit's power demand information is transmitted to the charging station. The power demand is determined by the charging unit's battery management system based on factors such as the battery's current charge level, charging status, and the preset charging strategy. For example, when the battery level is low, an electric vehicle requests a higher charging power for faster charging. However, when the battery level is nearly full, the power demand is reduced, and charging modes such as constant voltage and floating charge are adopted. After receiving the charging unit's power demand information, the charging station converts it into a digital or electrical signal and transmits it to a controller. When the controller receives the charging unit's power demand and the input power information from the main power supply, it compares the two power values. The controller's microprocessor or digital signal processor executes a corresponding comparison algorithm, numerically comparing the charging unit's power demand with the input power of the main power supply to detect whether the charging unit's power demand is equal to or less than the input power of the main power supply.

[0042] It is understandable that the controller of the embodiment of the present invention may execute a comparison algorithm, for example, the comparison algorithm includes a direct comparison method and a difference comparison method.

[0043] For example, the direct comparison method directly compares the power demand value of the charging body with the input power value of the main power supply. For example, assuming that the power demand of the charging body is Pc and the input power of the main power supply is Ps, when Pc is less than or equal to Ps, the condition that the power demand of the charging body is less than or equal to the input power of the main power supply is met, and the controller determines that the main power supply can meet the charging demand; otherwise, it determines that the main power supply cannot meet the demand. The difference comparison method first calculates the difference ΔP = Ps-Pc between the input power of the main power supply and the power demand of the charging body, and then determines whether the difference ΔP is greater than or equal to zero. If ΔP is greater than or equal to 0, it means that the input power of the main power supply is greater than or equal to the power demand of the charging body, that is, the condition is met; if ΔP is less than or equal to 0, it means that the main power supply cannot meet the power demand of the charging body.

[0044] In step S130 , if the input power is equal to or less than the input power of the main power supply, then continue to execute the above step S110 to control the main power supply to supply power to the charging object through the charging pile.

[0045] Specifically, after the controller determines through a comparison algorithm that the power demand of the charging body meets the conditions, it generates a control signal and transmits the control signal to the control circuit of the main power supply and the charging pile. After confirming the signal, the main power supply adjusts its output according to the needs of the charging body and its own operating status. After the charging pile receives the signal from the controller, its internal power conversion circuit will start working, that is, converting the electric energy input by the main power supply, such as converting the AC power of the municipal power supply into DC power suitable for the charging body, or converting the DC power output by the battery energy storage system into voltage, etc., to meet the charging requirements of the charging body.

[0046] In step S140 , if the input power is greater than the input power of the main power supply, at least one of the auxiliary power supplies is controlled to cooperate with the main power supply to supply power to the charging object through the charging pile.

[0047] Specifically, after the controller determines, through the previous power comparison algorithm, that the power demand of the charging body is greater than the input power of the main power supply, the controller selects a secondary power supply to participate in the power supply based on the current status of each secondary power supply. The controller sends a start signal and power allocation instructions to the selected secondary power supply. When the secondary power supply receives the start signal, it can parse and confirm the start signal. At the same time, the controller controls the main power supply and the charging pile, that is, cooperates with the secondary power supply to supply power, and coordinates the operation of the three. In this way, relying solely on the main power supply may not provide enough power to meet the fast charging requirements of the charging body. By cooperating with the secondary power supply, that is, integrating the power of multiple power supplies, the high power demand of the charging body can be met, and fast and efficient charging can be achieved.

[0048] For example, the secondary power supply can adjust its output power based on the power allocation instructions it receives. For example, a battery energy storage system can adjust the discharge current and voltage, and a photovoltaic power generation system can change its output power by adjusting the operating point of the photovoltaic panels so that when added to the output power of the main power supply, it can meet the power requirements of the charging unit. The main power supply can appropriately adjust its output power based on the overall power supply situation and match the power with the secondary power supply. Finally, the charging station integrates and converts the input electrical energy based on the output of the main and secondary power supplies, and outputs the appropriate voltage and current to the charging unit.

[0049] In some specific embodiments, after controlling the main power supply to supply power to the charging object through the charging pile in step S110, the following steps are further included:

[0050] Detect the power supply of the main power supply and determine whether the power supply of the main power supply meets the power supply demand of one of the auxiliary power supplies; if the power supply demand of one of the auxiliary power supplies is met, control the main power supply to supply power to one of the auxiliary power supplies.

[0051] Specifically, by measuring the amount of power available from the main power source, for example, by measuring parameters such as the battery's voltage, current, and charge / discharge time, an algorithm can be used to accurately calculate the amount of power supplied by the main power source. For other types of main power sources, such as municipal power grids, power can be directly allocated to other secondary power sources. By detecting the amount of power available from the main power source and determining whether it meets the demand for powering the secondary power sources, excessive idleness or waste of power from the main power source can be avoided. That is, when the main power source has excess power, it is allocated to the secondary power source for charging, achieving a rational flow and optimal allocation of energy between different power sources, and improving the energy efficiency of the entire power supply system.

[0052] During operation, the main power supply adjusts its output state upon receiving a signal. Specifically, it allocates a portion of the electrical energy to the charging circuit of the secondary power supply. At the same time, to ensure that the main power supply's power supply to the charging unit is not affected, the output power is reasonably allocated and adjusted. For example, the main power supply can appropriately reduce the power supplied to the charging unit to ensure sufficient power is available for charging the secondary power supply. However, the magnitude of the reduction will be controlled within the acceptable range of the charging unit to ensure that the charging process of the charging unit can continue normally. When the secondary power supply receives the signal, it starts the charging process. That is, according to the preset charging management strategy, the electrical energy input by the main power supply is converted and stored to charge the secondary power supply.

[0053] For example, in an electric vehicle charging station, the main power supply is the municipal power supply, and electric vehicles are charged through charging piles. During a certain period of time, multiple electric vehicles are charging at the same time, and the power provided by the municipal power grid can meet the charging needs of each vehicle. At this time, since the charging station is equipped with a battery energy storage system as a secondary power supply, the main power supply (municipal power supply) can meet the power supply demand of the battery energy storage system (secondary power supply), so the main power supply can be controlled to supply power to the battery energy storage system. In this way, when the municipal power grid has power available, the excess energy will be stored in the energy storage battery pack. If the municipal power supply fails, there is a power outage, or the power is insufficient during peak hours, the energy storage battery pack can be put into use as a backup power supply to continue charging electric vehicles and ensure the normal operation of the charging station.

[0054] In some specific embodiments, before controlling the main power supply to supply power to the charging object through the charging pile in step S110, the following steps are included:

[0055] The power supply priority order of each power supply is determined according to the type of each power supply.

[0056] Specifically, because different types of power sources have their own unique characteristics, these characteristics can be used as an important basis for determining power supply priority. For example, the mains power grid typically provides stable and continuous power, with minimal voltage and frequency fluctuations and the ability to provide high power. Therefore, it is a more reliable power source in many scenarios and is generally given a higher priority. Alternatively, the power supply priority ranking can be determined based on the current status of each power source. For example, for power generation equipment, such as a diesel generator, if it is in good operating condition and has stable output power, it will be given a higher power supply priority than other power sources that are unstable or have potential faults.

[0057] The main power supply and each auxiliary power supply are determined according to the power supply priority.

[0058] Specifically, after determining the power supply priority of each power source, the source with the highest priority is selected as the primary power source. This primary power source is responsible for providing the primary power supply to the charging unit, ensuring a stable and reliable charging process. For example, at charging stations in cities, the municipal power supply is generally designated as the primary power source, which can meet the high power and long-term charging requirements of electric vehicles in most cases. The remaining power sources serve as secondary power sources. The function of the auxiliary power supply is to assist the main power supply to supply power to the charging body when the main power supply fails, has insufficient power or other abnormal conditions occur. For example, in a charging station with both municipal power supply and energy storage battery pack, the energy storage battery pack is the auxiliary power supply. When the municipal power supply is cut off due to a fault or cannot meet the power requirements of all charging bodies during peak power consumption, the energy storage battery pack will be started and supply power to the charging body together with the main power supply (when the municipal power supply is normal) or replace the main power supply (when the municipal power supply fails) to ensure the continuity of the charging process. In this way, the power supply priority is reasonably determined according to the type and status of each power supply, and the main power supply and auxiliary power supply are clearly defined, which can optimize the operation of the power supply system and ensure that the charging body can obtain a continuous and stable power supply.

[0059] In some specific embodiments, before step S110, controlling the main power supply to supply power to the charging object through the charging pile, or step S140, controlling at least one of the auxiliary power supplies to cooperate with the main power supply to supply power to the charging object through the charging pile, the steps include:

[0060] Detecting a power supply mode instruction for charging demand; wherein the power supply mode instruction includes a fast charging mode instruction and a normal power supply mode instruction.

[0061] Specifically, the charging pile system is equipped with a system for real-time monitoring of power supply mode instructions from the charging body or user input. For example, when the user selects fast charging mode on the charging pile's operating interface, the operating interface transmits the corresponding fast charging mode instruction to the controller; or the charging body (such as an electric car) sends a fast charging mode instruction to the controller according to the settings of the built-in battery management system to indicate the need for fast charging. Similarly, when the user selects normal power supply mode or the charging body determines that normal charging is required based on the built-in status, it can send a normal power supply mode instruction to the charging pile.

[0062] According to different power supply mode instructions, the power supply of the main power supply and each auxiliary power supply is adjusted.

[0063] For example, upon receiving a fast-charging mode command, the controller first evaluates the current status of the primary power supply and each secondary power supply, including available power and output power capabilities. To achieve fast charging, the controller prioritizes allocating the primary power supply to output its maximum available power. For example, if the primary power supply is a municipal power source that can provide sufficient power to meet fast-charging requirements, the municipal power source will supply power to the charging pile at its maximum allowable power to charge the charging object as quickly as possible. When receiving a normal power supply mode command, its operation is similar to that when receiving a fast-charging mode command, and will not be described in detail here.

[0064] It should be noted that if the primary power supply alone cannot meet the power requirements for fast charging, the corresponding secondary power supplies will be activated in sequence according to their priority and available power, so that they can work in conjunction with the primary power supply to jointly provide sufficient power to the charging pile. For example, if the primary power supply is the mains power grid and the secondary power supply is a storage battery pack, when the mains power grid is insufficient to support fast charging, the storage battery pack will be activated, releasing energy and merging it with the mains power grid to provide the power required for fast charging to the charging object through the charging pile.

[0065] In a further embodiment, after allocating the power supply of the main power supply and each auxiliary power supply according to different power supply modes, the following steps are included:

[0066] Monitor the power supply status of the main power supply and each auxiliary power supply.

[0067] Specifically, the power supply status of the main power supply and each auxiliary power supply is monitored in real time, with monitored parameters including but not limited to voltage, current, power output, power supply temperature, and available power. For example, a voltage sensor is used to detect whether the output voltage of the power supply is within a normal range, a current sensor is used to monitor the output current, a power monitoring device is used to monitor the power output of the power supply in real time, a temperature sensor is used to detect the operating temperature of the power supply device, and a power monitoring module is used to provide feedback on the available power of the power supply. Once any one or more of these parameters exceeds the preset normal range, the power supply status is considered abnormal.

[0068] Specifically, if the power supply state of the main power supply is abnormal, one of the slave power supplies is switched to serve as the main power supply according to the power supply priority.

[0069] Specifically, when the power supply status of the main power supply is monitored to be abnormal, it is handled in the following manner. First, the severity of the abnormality of the main power supply is determined based on the abnormal conditions of the specific parameters monitored; for example, if the voltage fluctuates slightly, a brief observation and adjustment is performed to detect whether it can be restored to normal; but if the voltage drops sharply, the current is overloaded, the power output is unstable and exceeds the allowable range, or there are serious problems such as overheating of the power supply equipment, the main power supply needs to be switched. According to the power supply priority switch, according to the previously determined power supply priority ranking, the auxiliary power supply with the highest priority is selected as the new main power supply.

[0070] For example, in a power station that includes a municipal power source, a diesel generator, and a battery bank, the municipal power source is typically the primary power source. If a serious problem such as a power outage or voltage anomaly occurs on the municipal power source, and the diesel generator has a higher power supply priority than the battery bank, the diesel generator will automatically start and switch to the new primary power source, continuing to supply power to the charging station through the charging station to ensure uninterrupted charging.

[0071] Specifically, if the power supply state of one of the slave power sources is abnormal, the power supply priorities of the slave power sources are rearranged according to the power supply priority order.

[0072] Specifically, when an abnormality is detected in the power supply status of one of the auxiliary power sources, the following measures are taken. By evaluating the impact of the auxiliary power source abnormality on the entire power supply system, if the auxiliary power source is currently in standby mode and the abnormality does not affect the normal operation of other power sources, the abnormality information is first recorded and processed after the charging process is completed or there is idle time. If the auxiliary power source is assisting the main power source in supplying power to the charging object, or its abnormality may affect the stability of the entire power supply system, timely adjustments are required, that is, according to the power supply priority sorting principle, combined with the current status of each auxiliary power source, the power supply priority of each auxiliary power source is rearranged.

[0073] For example, there are three auxiliary power sources (A, B, and C) with a priority order of A>B>C. When auxiliary power source B experiences an abnormality, the status of A and C is re-evaluated. If A has sufficient power supply and is in good operating condition, and C has some minor issues but does not affect basic power supply, the priority is rearranged to A>C>B. With this setting, when an auxiliary power source is needed to assist with power supply in the future, the auxiliary power source is selected according to the new priority order to ensure the reliability and stability of the power supply system. In this way, when an abnormality occurs in the main power source or auxiliary power source, timely adjustments are made to ensure that the charging object can receive continuous and stable power supply.

[0074] In some specific embodiments, after controlling the main power supply to supply power to the charging object through the charging pile in step S110, or after controlling at least one of the auxiliary power supplies to cooperate with the main power supply to supply power to the charging object through the charging pile in step S140, the following steps are further included:

[0075] Collect the operating data of each power supply in real time.

[0076] Specifically, each power supply and charging pile is equipped with various sensors to collect different types of operating data, such as output voltage, current value, temperature and actual power during the charging process.

[0077] The operation data of each power source is stored and analyzed to form a plurality of historical databases corresponding to each power source.

[0078] Specifically, the collected operating data is converted into digital signals and then transmitted to relevant data storage devices. By continuously collecting, storing, and analyzing the operating data of each power source in real time, this data gradually accumulates over time to form a historical database. This historical database can not only be used to review and analyze past power supply system operations, but also to facilitate predictive maintenance, system optimization, fault diagnosis, and the development of appropriate power supply strategies. For example, by analyzing historical data, it can be found that a power source is prone to overheating in certain seasons or under specific charging loads, allowing appropriate cooling measures to be taken in advance or charging plans to be adjusted.

[0079] For example, statistical analysis methods can be used to calculate the average voltage, current, power and other parameters of each power supply in different time periods to understand the basic characteristics of its operation; trend analysis methods can be used to observe the changing trends of the operating parameters of the power supply over time, thereby predicting possible failures or performance degradation; correlation analysis methods can be used to find out the relationships between different power supplies and between power supplies and charging units, such as analyzing the power distribution of the main power supply and auxiliary power supply in different charging modes, and their impact on charging efficiency and charging unit life.

[0080] In some specific embodiments, after controlling the main power supply to supply power to the charging object through the charging pile in step S110, or after controlling at least one of the auxiliary power supplies to cooperate with the main power supply to supply power to the charging object through the charging pile in step S140, the following steps are also included:

[0081] Create data storage archives corresponding to different charging bodies.

[0082] Specifically, first, each charging body needs to be uniquely identified and its relevant information needs to be collected, such as the model, specifications, manufacturer, battery type, capacity and other basic parameters of the charging body. This information will serve as the basic data of the data storage archive to distinguish different charging bodies. According to the information of the charging body and the type of data that may need to be stored subsequently, the data structure of the data storage archive is designed. Generally speaking, data tables can be created by using a database management system. For example, a main table can be created to store the basic information and unique identifier of the charging body, and then multiple related tables can be created to store different types of data, such as charging history data, battery status data, fault records, etc. The fields in each table are defined according to the specific data content to ensure that various information related to the charging body can be accurately and completely recorded.

[0083] During the charging process, the system collects various data about the charging unit, such as charging voltage, current, power, and temperature, in real time through communication interfaces with the charging pile and the charging unit. This data is then stored in the corresponding charging unit data archive according to a pre-set data structure. As the charging process continues and the charging unit is used over time, this data is continuously updated and accumulated, forming a complete charging history and status change record for the charging unit.

[0084] Get battery diagnostic solutions corresponding to different data storage archives.

[0085] Specifically, key information is collected, including the BMS serial number, battery capacity, and charge and discharge cycles. The model of the configured charger and other related information are also recorded. This data provides a basic understanding of the charger's condition. Based on this collected information, a customer information data storage archive is established for each charger. Using the BMS serial number as a unique identifier, other relevant data is associated and stored, forming a complete information set that facilitates individual management and query of each charger's information. Subsequently, the data in the customer information archive is deeply mined and analyzed. For example, through long-term monitoring and analysis of data such as battery capacity and charge and discharge cycles, the charger's usage patterns and performance trends can be understood. For example, the distribution of charge and discharge cycles over different time periods, as well as the change in battery capacity during each charge and discharge cycle, can be analyzed to determine the battery's health. Subsequently, machine learning or other data analysis algorithms are used to learn from the data in the customer information archive and establish a battery health assessment model. This model outputs an assessment of the battery's health based on the input battery data. For example, by analyzing a large amount of historical data, the relationship between battery capacity decline, charge and discharge efficiency changes, and battery health status is identified, forming a mathematical model that can accurately assess battery health. Finally, based on the established evaluation model, the health status of the EV battery of the charging body is evaluated regularly or under specific conditions (such as after each charging is completed). For example, the current battery data is input into the model, and the model determines whether there are any abnormalities in the battery, such as whether there is a rapid decline in capacity, reduced charge and discharge efficiency, etc., based on the preset algorithm and threshold, and generates corresponding diagnostic results. Based on the diagnostic results, a health status diagnosis certificate is generated. The diagnosis certificate includes but is not limited to a description of the current health status of the battery, potential problem prompts, and estimated remaining service life. In this way, it provides comprehensive battery health information to understand the battery status of different charging bodies and take appropriate maintenance measures.

[0086] The embodiment of the present invention further provides a power supply scheduling device for multiple power sources, which can be configured in a controller and is used to execute any embodiment of the aforementioned power supply scheduling method. Specifically, the specific structure of the power supply scheduling device for multiple power sources provided by the embodiment of the present invention is described in detail below. Figure 3 As shown in , the specific steps of the power supply scheduling device include the following:

[0087] The control module is used to control the main power supply to supply power to the charging body through the charging pile when receiving the charging demand issued by the charging body; the detection module is used to detect whether the power demand of the charging body is equal to or less than the input power of the main power supply; if it is equal to or less than the input power of the main power supply, the control module continues to control the main power supply to supply power to the charging body through the charging pile; if it is greater than the input power of the main power supply, the control module controls at least one of the auxiliary power supplies to cooperate with the main power supply to supply power to the charging body through the charging pile.

[0088] A power supply scheduling device for multiple power sources provided in an embodiment of the present invention applies the above-mentioned power supply scheduling method for multiple power sources. Specifically, when a charging demand of a charging body is received, the main power source is used to power it. If the power demand of the charging body is equal to or less than the input power of the main power source, the main power source continues to supply power alone. If the power demand of the charging body is greater than the input power of the main power source, at least one auxiliary power source is controlled to cooperate with the main power source for power supply, which can ensure that the charging body can obtain sufficient power for normal charging. Through this hierarchical power supply method, the main power source and the auxiliary power source are flexibly allocated according to the actual power demand of the charging body, thereby realizing effective coordinated work of multiple power sources and improving the reliability and flexibility of the power supply system to meet the charging requirements of different charging bodies under various power demand conditions.

[0089] An embodiment of the present invention further provides a computer device, which may be used to execute a power supply scheduling method for multiple power sources.

[0090] See Figure 4 The computer device 500 includes a processor 502 , a memory, and a network interface 505 connected via a communication bus 501 , wherein the memory may include a storage medium 503 and an internal memory 504 .

[0091] The storage medium 503 may store an operating system 5031 and a computer program 5032. When the computer program 5032 is executed, the processor 502 may execute a power supply scheduling method for multiple power sources. The storage medium 503 may be a volatile storage medium or a non-volatile storage medium.

[0092] The processor 502 is used to provide computing and control capabilities to support the operation of the entire computer device 500.

[0093] The internal memory 504 provides an environment for the operation of the computer program 5032 in the storage medium 503. When the computer program 5032 is executed by the processor 502, the processor 502 can execute a power supply scheduling method for multiple power sources.

[0094] The network interface 505 is used for network communication, such as providing data information transmission. Those skilled in the art will understand that Figure 4 The structure shown in the figure is merely a block diagram of a portion of the structure related to the solution of the present invention and does not constitute a limitation on the computer device 500 to which the solution of the present invention is applied. The specific computer device 500 may include more or fewer components than shown in the figure, or combine certain components, or have a different component arrangement.

[0095] The processor 502 is configured to run a computer program 5032 stored in a memory to implement corresponding functions in the aforementioned power supply scheduling method for multiple power sources.

[0096] Those skilled in the art will understand that Figure 4 The embodiment of the computer device shown in the figure does not constitute a limitation on the specific composition of the computer device. In other embodiments, the computer device may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently. For example, in some embodiments, the computer device may only include a memory and a processor. In such an embodiment, the structure and function of the memory and processor are the same as those in the figure. Figure 4 The embodiments shown are consistent and will not be described again here.

[0097] It should be understood that in the embodiment of the present invention, the processor 502 may be a central processing unit (CPU), and the processor 502 may also be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor, etc.

[0098] In another embodiment of the present invention, a computer-readable storage medium is provided. The computer-readable storage medium may be volatile or non-volatile. The computer-readable storage medium stores a computer program, which, when executed by a processor, implements the steps included in the aforementioned method for scheduling power supply for multiple power sources.

[0099] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the above-described equipment, devices and units can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here. Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented with electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0100] In the several embodiments provided by the present invention, it should be understood that the disclosed devices, apparatuses and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, or units with the same function may be combined into one unit. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interfaces, devices or units, or may be an electrical, mechanical or other form of connection.

[0101] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected according to actual needs to achieve the objectives of the embodiments of the present invention.

[0102] In addition, the functional units in the various embodiments of the present invention may be integrated into a single processing unit, each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0103] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention is essentially or the part that contributes to the existing technology, or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a computer-readable storage medium and includes several instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned computer-readable storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a magnetic disk, or an optical disk.

[0104] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A power supply scheduling method for multiple power sources, characterized in that: The power supply scheduling method is applied to a controller of a solar-storage direct-flexible system, wherein the controller is controlled and connected to multiple power supplies, each of which includes a main power supply and multiple auxiliary power supplies, and the main power supply and each of the auxiliary power supplies are electrically connected to a charging pile. The power supply scheduling method includes: When receiving a charging request from the charging body, controlling the main power supply to supply power to the charging body through the charging pile; Detecting whether the power demand of the charging body is equal to or less than the input power of the main power supply; If the input power is equal to or less than the input power of the main power supply, continue to control the main power supply to supply power to the charging object through the charging pile; If the input power is greater than the input power of the main power supply, at least one of the auxiliary power supplies is controlled to cooperate with the main power supply to supply power to the charging object through the charging pile.

2. The power supply scheduling method for multiple power sources according to claim 1, characterized in that: After controlling the main power supply to supply power to the charging object through the charging pile, the method further includes: Detecting the amount of power available from the main power supply; Determining whether the power supply of the main power supply meets the power supply demand of one of the auxiliary power supplies; If the power supply requirement for one of the auxiliary power sources is met, the main power source is controlled to supply power to one of the auxiliary power sources.

3. The power supply scheduling method for multiple power sources according to claim 1, characterized in that: Before controlling the main power supply to supply power to the charging object through the charging pile, the method includes: Determining the power supply priority order of each of the power supply sources according to the type of each of the power supply sources; The main power supply and the auxiliary power supplies are determined according to the order of the power supply priorities.

4. The power supply scheduling method for multiple power sources according to claim 3, characterized in that: After controlling the main power supply to supply power to the charging object through the charging pile or controlling at least one of the auxiliary power supplies to cooperate with the main power supply to supply power to the charging object through the charging pile, the method includes: Detecting a power supply mode instruction for the charging demand; the power supply mode instruction includes a fast charging mode instruction and a normal power supply mode instruction; The power supply of the main power supply and each of the auxiliary power supplies is adjusted according to the different power supply mode instructions.

5. The power supply scheduling method for multiple power sources according to claim 4, characterized in that: After allocating the power supply of the main power supply and each of the auxiliary power supplies according to the different power supply modes, the following steps are included: Monitoring the power supply status of the main power supply and each of the auxiliary power supplies; If the power supply state of the main power supply is abnormal, switching one of the auxiliary power supplies as the main power supply according to the power supply priority order; If the power supply state of one of the subsidiary power sources is abnormal, the power supply priorities of the subsidiary power sources are rearranged according to the power supply priority order.

6. The power supply scheduling method for multiple power sources according to claim 1, characterized in that: After controlling the main power supply to supply power to the charging object through the charging pile or controlling at least one of the auxiliary power supplies to cooperate with the main power supply to supply power to the charging object through the charging pile, the method further includes: Real-time collection of operating data of each power supply when supplying power; The operation data of each power source is stored and analyzed to form a plurality of history databases corresponding to each power source.

7. The power supply scheduling method for multiple power sources according to claim 1, characterized in that: After controlling the main power supply to supply power to the charging object through the charging pile or controlling at least one of the auxiliary power supplies to cooperate with the main power supply to supply power to the charging object through the charging pile, the method further includes: Creating a data storage archive corresponding to different charging bodies; Obtain battery diagnosis solutions corresponding to different data storage archives.

8. A power supply scheduling device for multiple power sources, characterized in that: The power supply scheduling device is provided in the controller of the solar-storage direct-flexible system, and the controller is connected to a plurality of power supplies, each of which includes a main power supply and a plurality of auxiliary power supplies, and the main power supply and each of the auxiliary power supplies are electrically connected to the charging pile. The power supply scheduling device includes: a control module configured to control the main power supply to supply power to the charging unit via the charging pile upon receiving a charging request from the charging unit; a detection module, configured to detect whether the power demand of the charging unit is equal to or less than the input power of the main power supply; If the input power is equal to or less than the input power of the main power supply, the control module continues to control the main power supply to supply power to the charging object through the charging pile; If the input power is greater than the input power of the main power supply, the control module controls at least one of the auxiliary power supplies to cooperate with the main power supply to supply power to the charging object through the charging pile.

9. A computer device, characterized in that: The device includes a processor, a network interface, a memory and a communication bus, wherein the processor, the network interface and the memory communicate with each other via the communication bus; Memory for storing computer programs; The processor is configured to implement the steps of the power supply scheduling method for multiple power supply sources according to any one of claims 1 to 7 when executing the program stored in the memory.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the power supply scheduling method for multiple power supply sources according to any one of claims 1 to 7 are implemented.

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