CN116653680A - Electric quantity distribution method, electric quantity distribution device and electronic equipment - Google Patents

Abstract

The present invention provides a power distribution method, a power distribution device and electronic equipment, including: placing the battery to be recharged into a power exchange cabinet, and establishing communication with the battery management system; charging the battery to be recharged according to the charging strategy provided by the battery management system, Form a standby battery; control the energy flow between the grid and the standby battery according to the grid situation and power distribution strategy; the energy flow includes: island mode, grid charging mode, and battery power transmission mode. The invention realizes the reasonable use of electric power, avoids the problems of long-term non-use battery performance degradation and lifespan reduction, and sets electric power distribution strategy at the same time, saves energy and protects the environment, has safety prediction ability, and greatly increases the convenience and safety of end users.

Description

A power distribution method, power distribution device and electronic equipment

technical field

Embodiments of the present disclosure relate to the field of battery charging and swapping, and more specifically, relate to a method for distributing power, a device for distributing power, and electronic equipment.

Background technique

Due to charging safety issues and the need for convenient use by consumers, infrastructure such as electric bicycle charging piles began to be laid in major cities in my country as early as 2015.

The existing electric bicycle charging pile is an open charging scene, and it is difficult to add effective measures in terms of fire fighting and charging temperature management. The charging pile only transfers the indoor fire hazard to the outdoor, which can reduce the probability of death, and it still needs to be sold with a charger when the two-wheeler is sold, but it cannot completely solve the problems of charging upstairs and charging safety.

Compared with charging piles, charging cabinets have greater advantages in terms of safety, fire protection, and efficient use of sites. Charging cabinets can reduce the risk of fire joint operations, but power exchange cabinets are self-service, and batteries and users of the same protocol are not connected. Timely replacement cannot be guaranteed, resulting in the existence of zombie batteries, affecting the service life of the battery, and causing a waste of electricity; the power exchange cabinet is attached to the nearby power grid, and when the power grid fails, it will affect the use of the power exchange cabinet, resulting in bad user experience Use experience.

Contents of the invention

In order to solve the above-mentioned technical problems, the present invention provides a power distribution method, power distribution device and electronic equipment to realize the rational use of power, avoid the problems of performance degradation and lifespan reduction of batteries that are not used for a long time, and set power distribution strategies at the same time. Energy saving and environmental protection, with safety prediction capability, which greatly increases the convenience and safety of end users.

The first aspect of the present invention provides a power distribution method, including: placing the battery to be recharged into the power exchange cabinet, and establishing communication with the battery management system; charging the battery to be recharged according to the charging strategy provided by the battery management system to form a battery According to the grid situation and power distribution strategy, the energy flow between the grid and the standby battery is controlled; the energy flow includes: island mode, grid charging mode, and battery power transmission mode; among them, the island mode, when the grid fails, uses the fully charged The battery with enough power charges the battery that is short of power; the grid charging mode, when the grid is in normal use, charges the battery; the battery power delivery mode, when the grid is out of power and needs power, the battery is used as a power source to supply power to the grid for emergency.

The second aspect of the present invention provides a power distribution device, including: a communication module, used to establish communication between the battery to be charged and the battery management system; a charging module, which receives the charging strategy provided by the battery management system, and charges the battery to be charged , to form a standby battery; the energy control module is used to control the energy flow between the grid and the standby battery; the mode selection module is used to select the island mode, grid charging mode, and battery power transmission mode according to the grid situation and power distribution strategy a flow of energy.

A third aspect of the present invention provides a power exchange cabinet, which adopts the above-mentioned power distribution device and implements the above-mentioned power distribution method.

A fourth aspect of the present invention provides an electronic device, including: at least one processor; and a memory connected to the at least one processor in communication; wherein, the memory stores instructions that can be executed by the at least one processor, and the instructions are executed by at least one processor. Executed by a processor, so that at least one processor can execute the above power distribution method.

The invention adopts the power distribution device to realize the reasonable use of the power in the power exchange cabinet, avoiding the situation that the battery is not suitable for a long time and the life is reduced; the power distribution strategy is established to separate the battery from the power grid, avoiding the occurrence of extreme situations, and completely realizing the power at any time Guarantee the use of batteries, solve the premise of safe charging and convenient travel of electric two- and three-wheelers, and realize a full-scenario green electricity consumption scenario.

It should be understood that the content described in the Summary of the Invention is not intended to limit the key or important features of the embodiments of the present invention, nor is it intended to limit the scope of the present invention. Other features of the present invention will become readily understood through the following description.

Description of drawings

The above and other features, advantages and aspects of various embodiments of the present invention will become more apparent with reference to the following detailed description taken in conjunction with the accompanying drawings. In the drawings, identical or similar reference numerals denote identical or similar elements, wherein:

FIG. 1 shows a flowchart of a power distribution method according to an embodiment of the present disclosure;

FIG. 2 shows a charging flow diagram of an embodiment of the present disclosure;

FIG. 3 shows an internal design diagram of a DC-DC converter according to an embodiment of the present disclosure;

FIG. 4 shows a relationship diagram between a battery management system and an energy controller according to an embodiment of the present disclosure;

FIG. 5 shows a relationship diagram between a charging module and a battery management system according to an embodiment of the present disclosure;

Fig. 6 shows a block diagram of a power distribution device according to an embodiment of the present disclosure;

FIG. 7 shows a block diagram of an exemplary electronic device capable of implementing embodiments of the present disclosure.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

In addition, the term "and/or" in this article is only an association relationship describing associated objects, which means that there may be three relationships, for example, A and/or B may mean: A exists alone, A and B exist at the same time, There are three cases of B alone. In addition, the character "/" in this article generally indicates that the contextual objects are an "or" relationship.

In the present disclosure, a power distribution method, device, power exchange cabinet and computer storage medium are provided, using

Greatly increase the convenience and safety of end users.

The first aspect of the present invention is described with reference to the flow chart of the power distribution method shown in FIG. 1. A power distribution method is provided, comprising the following steps:

S1: Put the battery to be charged into the power exchange cabinet and establish communication with the battery management system;

The battery management system mainly serves as a communication auxiliary charging function. For batteries of different materials, different voltages, different capacities, and different brands and models, according to the current state of the battery and the charging strategy formulated by the lithium battery itself, the auxiliary charging module can dynamically adjust the output. The charging mode is used to charge the battery; through the data transmitted to the charging module and various judgment conditions, it can judge the possible abnormal situation of charging, and adopt different strategies, including stopping charging, locking and recycling the battery, suspending charging, starting fire protection, etc.

The inside of the battery compartment of the power exchange cabinet is provided with a plug corresponding to the battery charging interface, which connects the battery to the power grid. At the same time, the interface is a communication interface to establish a communication connection with the battery management system. The data basis for battery data collection and real-time adjustment is guaranteed.

S2: According to the charging strategy provided by the battery management system, charge the battery to be charged to form a battery to be used. The charging process diagram shown in FIG. 2 includes the following steps:

Physical connection: The battery to be charged is physically connected to the charging interface, communicates with the charging module, and starts the battery management system at the same time;

Battery detection: the connection is successful, the charging module performs communication detection on the battery, communicates with the battery management system at the same time, receives the feedback authentication from the battery management system, and determines whether to start charging;

Charging parameter configuration: when the charging is determined, the battery management system obtains the battery number field, determines the charging strategy, assists the charging module to configure the charging parameters of the battery, and sets the power output for charging after the configuration is successful;

The charging strategy is a strategy to determine the priority order of battery charging according to the supplier level, user level, battery level, settlement method, charging time and place, and charging amount; the charging parameters include: charging voltage, charging current, charging amount, initial power;

Charging: During the charging process, the battery and the charging module are in a communication state, the battery management system obtains battery status information and performs parameter detection, and assists the charging module to adjust the power output in time until the battery is fully charged; the battery Status information includes: cell voltage, ambient and battery internal temperature, remaining battery percentage, charging time, battery health, total voltage, total current, average voltage, power, differential pressure, ampere hours, insurance information;

End of charging: when charging ends, the charging module stops charging and enters the battery state detection state, and the battery management system stops and enters an idle state.

During the charging process, the battery and the charging module are in a state of real-time communication. The charging module reads the working data of each cell in the battery in real time and synchronizes with the battery management system. It can stop charging when the battery fails or a safety hazard occurs to avoid accidents. occur or escalate.

S3: Control the energy flow between the grid and the standby battery according to the grid conditions and the power distribution strategy;

In this embodiment, the power allocation strategy is to determine the order of charging and discharging, start and stop charging and discharging, lock and recycle batteries, and start Policy for security measures.

The energy flow includes: island mode, grid charging mode, and battery power transmission mode; wherein, in the island mode, when the grid fails, a fully charged battery is used to charge a battery that is short of power; During normal use, the battery is charged; in the battery power transmission mode, the battery is used as a power source to supply power to the grid for emergency when the grid is out of power and needs power.

In this embodiment, in the face of multiple batteries in the power exchange cabinet, some batteries have not been used for a long time, which wastes the power to maintain the battery performance, and the power content of the battery gradually decreases, and the battery life decays. The phenomenon. Refer to the power distribution strategy through the setting of energy flow, determine the battery that has not been used for a long time, discharge the battery, and charge the emergency battery; after the emergency battery is taken away, recharge the battery. At this time, the battery is the role of the battery. For energy storage.

In the above embodiment, the energy flow between the control grid and the standby battery is composed of a bidirectional DC-DC step-down device and a DC/AC AC-DC conversion device to form an energy controller to perform power control and charge-discharge conversion .

Specifically, the bidirectional DC-DC buck-boost device adopts a single-stage PWM full-bridge topology to regulate the active power and reactive power of the grid, including: a bidirectional PWM inverter circuit, a grid-side filter, and a DC-side protection device , the AC side protection device and the digital control circuit located in the periphery, the bidirectional DC-DC step-down device is controlled by a unified controller, which ensures the real-time performance and plug-and-play function in the strict sense of the system, as shown in Figure 3 The topology diagram of , showing the internal design of a DC-DC converter.

Among them, DC side protection includes overvoltage/undervoltage protection, overcurrent protection, input reverse connection protection, short circuit protection, insulation detection protection; AC side protection includes: overvoltage/undervoltage protection, over/underfrequency protection, overcurrent protection , Overload protection, overheat protection, automatic identification of phase sequence, etc.

The DC/AC AC/DC conversion device performs converter-level control according to the type of energy source connected, the type of converter, and the control target; the converter-level control includes: maximum power point tracking, bus voltage control, and direct power control , Constant power control, constant voltage and constant frequency control, virtual synchronous machine control, reactive power adjustment control, droop control, constant voltage/constant current/constant power charge and discharge control.

Constant power charge and discharge control includes grid charging mode and battery power transmission mode. The battery is directly connected to the grid to control the grid to charge the battery to be charged, or to control the standby battery to output power to the grid for emergency use of the grid.

Constant voltage and constant frequency control includes offline island mode, which can operate independently when the power grid fails or there is no power grid. The standby battery is used to supply power to the battery to be charged to meet the charging priority strategy.

Reactive power adjustment control can output capacitive reactive power or inductive reactive power to the grid through three modes of power factor (PF), reactive power ratio and Q-U, which can meet the reactive power scheduling requirements of the grid and improve the reliability and stability of the line.

In the above embodiment, the energy controller communicates with the battery management system, and adjusts the energy flow between the battery and the grid in real time through the real-time battery status information inside the battery management system.

Figure 4 shows the relationship between the battery management system and the energy controller. The battery management system is the central management to optimize the control of the battery according to the working status of the converter and the upper-level scheduling; the energy controller is the bottom controller. In the distribution network, the control system of the battery management system is used at the entrance of the regional power grid, and sends control instructions to the energy controller, which can not only collect the power consumption information of the regional power grid, but also communicate with other control systems in the distribution network. Through the DC/AC AC-DC conversion device, the effective utilization of distributed electric energy in the regional network is realized, so that the entire distribution network can achieve the optimal allocation of energy. When the distribution network is running in the grid-connected operation mode, the DC bus voltage control/PQ control is used to control the area (such as a micro-grid) connected to the main line of the distribution network, and the regional grid requests electric energy from the grid through the energy router or sends Electricity is provided by the grid; control the bidirectional DC-DC step-down device to obtain power from the grid through maximum power point tracking control (MPPT control); or control the bidirectional DC-DC through constant voltage charging control/constant current charging control/constant voltage discharge control The buck-boost device stores energy in the battery, and at the same time transmits the power of the battery to the battery management system, which distributes the power. As a power flow regulator, it dispatches according to the demand of the regional power grid for electric energy. When the regional power grid or large power grid fails, the battery management system operates in an island mode and is isolated from the distribution network. At this time, local loads in the regional grid need to coordinate with distributed renewable power and energy storage devices.

In the above implementation, the auxiliary cooperation between the charging module and the battery management system is shown in Figure 5 for a specific example:

Physical connection stage: firstly, the base of the rechargeable battery is connected to the connection base in the battery compartment to judge whether the connection of the battery is in place. If it is in place, connect the battery base to the charging module; if it is not in place, an alarm signal will be sent to remind the user to replace it; If it has not been placed in place, it will keep the information that is not in place and feed it back to the supplier. The supplier can call nearby maintenance personnel to deal with it, judge whether the interface is faulty, whether the power exchange cabinet is damaged, etc., and carry out Manual maintenance.

Battery detection stage: the charging module performs communication detection on the battery, and at the same time the charging base is connected to the battery management system to monitor the load condition, the communication is normal, the load is normal, the battery version information and basic battery information are obtained, and the auxiliary charging module is authenticated. After the authentication is successful, the closed Charge and discharge MOS; charging mode starts charging; communication is not normal, pre-charge, wait for 35 seconds, read the battery version information again, and re-perform communication detection;

The basic information of the battery can be refined to the definition of information fields, general fields, supplier ID, device ID, technical parameter information, etc. Specifically, it can include: identifying battery ID, supplier ID, battery model (48V\60V\70V, etc.) , battery power, current, voltage, single-cell voltage, battery charging times, battery cycles, battery health, charging conditions, placement status, charging voltage, charging current, single-cell voltage, power, technical parameters, remaining power, damage Battery status, history of battery failures, battery temperature, and all other battery-related information.

Parameter configuration stage: the charging module communicates with the battery management system in real time, the battery management system obtains battery charging information, determines the charging strategy and whether to charge; the battery management system obtains battery charging demand information, and assists in setting voltage and current parameters; the charging module configures voltage and current parameters After normal, set the power output for charging; the charging strategy includes priority strategy and charging mode strategy. Specifically, the priority strategy is to determine charging according to supplier level, user level, battery level, settlement method, charging time and place, and charging capacity. The priority order strategy; the charging mode test is to judge which charging mode to use according to the size of the battery capacity, life expectancy and performance improvement, such as the mode of constant current first and then constant voltage, activation mode, etc.

Charging stage: During the charging process, the battery and the charging module are in a communication state, and the battery management system reads the relevant information of the battery status to enable the charging module to charge normally; the battery management system reads the battery charging status information to determine when to stop charging; At the same time, the battery management system reads the battery charging demand information and other battery information in real time, and judges and adjusts the power output until the battery is fully charged;

Charging end stage: The charging module stops power output and enters the battery status detection state; the battery management system disconnects the charging and discharging MOS and enters the idle state.

By charging according to the charging strategies of different suppliers, the battery management system of the power exchange cabinet can share information with suppliers before charging, so as to realize the compatibility of batteries from different suppliers. As long as the battery shape and charging connector are unified, the Charging can be realized in the power exchange cabinet; the batteries of different suppliers are different, and they are unified through the power exchange cabinet, which reduces the competition between suppliers, and the battery acquisition is centralized management, which improves the safety performance, is convenient for users to use, and does not appear at the same time The emergence of battery exchange cabinets from different brands of manufacturers reduces the cost of suppliers, and also provides a quality standard for electric vehicle batteries, which is convenient for the development of the industry.

According to the above-mentioned implementation, the mode of constant current first and then constant voltage is divided into the following three stages:

Pre-charging stage: After the DC power supply is connected, when the battery is detected, the charging chip starts and enters the pre-charging process. During this period, the charging module charges the battery with a small current to restore the battery voltage and temperature to a normal state;

Constant current charging stage: In the initial stage of charging, the charging module charges the lithium-ion battery with a constant current. Generally, most lithium batteries use standard charging rates; during constant current charging, the battery voltage will rise slowly. Once the battery voltage reaches the set limit voltage, the constant current charging is terminated, and the constant voltage charging process is entered;

Constant voltage charging stage: During the constant voltage charging process, the charging current gradually decays. When it is detected that the charging current drops below the set value, or the full charging time is overtime, it will switch to the top end charging. At this time, the charging controller will charge with a very small charging current. To replenish energy for the battery, under normal circumstances, this process can prolong the service time of the battery by 5% to 10%. In the above charging method, in order to avoid excessive current and high battery temperature, a small The charging current is used for charging, and the charging efficiency is not high. In order to improve the charging efficiency, the variable current charging method can be used.

According to the above-mentioned embodiment, the activation mode is: judge the idle condition of the battery according to the charging time and power of the battery, and directly issue activation charging, always ensure that the idle battery is in a certain state of power, and ensure that the battery will not be scrapped due to long-term power loss; At the same time, the charging time can be controlled according to the charging time, too long or too short will affect the use. One bad characteristic of lithium-ion batteries is that lithium-ion batteries have aging effects. When lithium-ion batteries are stored for a period of time, even if they are not recycled, part of their capacity will be permanently lost. This is because the positive and negative values of lithium-ion batteries Polar materials have already started the process of failure since they left the factory. Different battery charging states have different aging effects. The more fully charged the battery is, the more severe its capacity loss will be. Therefore, for the lithium battery pack that will be idle, it is recommended that its charging level be 40% of the storage power, and the power can be maintained by uploading the real-time power to the power exchange cabinet.

According to the above-mentioned embodiment, after the supplier receives the charging data or the battery replacement data, the supplier manages and maintains the battery according to the charging data or the battery replacement data, so as to realize the communication with the supplier. Information Sharing.

According to the embodiments of the present disclosure, the following technical effects are achieved:

The cooperation of the battery management system and the charging system of the power exchange cabinet is used to realize the intelligent charging of the battery. At the same time, the battery status monitoring system is improved, and an advanced safety prediction technology is established; at the same time, the power distribution device is used to realize the reasonable amount of power in the power exchange cabinet. Use to avoid the situation that the battery is not suitable for a long time and its life is reduced; establish a power distribution strategy to separate the battery from the power grid, avoid the occurrence of extreme situations, completely realize the use of the battery at any time, and solve the premise of safe charging and convenient travel of electric two-wheelers. , to realize a full-scenario green electricity consumption scenario.

It should be noted that for the foregoing method embodiments, for the sake of simple description, they are all expressed as a series of action combinations, but those skilled in the art should know that the present disclosure is not limited by the described action sequence. Because of this disclosure, certain steps may be performed in other orders or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all optional embodiments, and the actions and modules involved are not necessarily required by the present disclosure.

The above is the introduction of the method embodiments, and the solution of the present disclosure will be further described through the device embodiments below.

Referring to the block diagram of the power distribution device 600 shown in FIG. 6 , to describe the second aspect of the present invention, a power distribution device 600 is provided, including:

A communication module 610, configured to establish communication between the battery to be charged and the battery management system;

The charging module 620 receives the charging strategy provided by the battery management system, charges the battery to be charged, and forms a battery to be used;

An energy control module 630, configured to control the energy flow between the power grid and the standby battery;

The mode selection module 640 is configured to select an energy flow among the island mode, the grid charging mode, and the battery power transmission mode according to the power grid situation and the power distribution strategy.

In the above embodiments, the power distribution device 600 is also provided with a data management and status monitoring platform, the platform includes a data acquisition module, a data management module, a control module and an interface integration module; real-time collection of power data, battery data, power distribution and other related Various telemetry, remote signaling, accumulative quantity and other automation information, and send various data information and commands such as remote control and remote adjustment to each device.

Among them, the power data adopts a three-layer structure, including: BMS, battery cluster, and BMU. Communicate with BMS to obtain BMS, battery cluster and BMU data; BMU data includes: voltage, temperature, SOC, SOH of each single cell; total voltage, total current, average voltage, differential pressure, ampere hours, insurance information ; The platform can set the balance command for a single cell in the BMU to obtain balanced current information.

The battery cluster data includes: voltage, current, power, SOC, SOH, ampere-hour status, maximum and minimum voltage BMU information, maximum and minimum temperature BMU information.

BMS data includes: output power, total voltage, current, working status and other information.

Those skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the described modules can refer to the corresponding process in the foregoing method embodiments, which will not be repeated here.

A third aspect of the present invention provides a power exchange cabinet, which adopts the above-mentioned power distribution device and implements the above-mentioned power distribution method.

Specifically, the fire protection system is installed in the cabinet of the power exchange cabinet, and the mode is a single-compartment water-based submerged fire extinguishing method, which can effectively solve the fire safety problem of the battery thermal runaway; the power exchange cabinet is equipped with multiple battery compartments, and each battery compartment is set The charging connector is charged after being in contact with the inserted battery; by setting a monitoring unit in the battery compartment, multiple monitoring units are integrated into a complete battery health status monitoring system to monitor the battery charging and replacement status and fault status in real time; At the same time, the monitoring unit and charging device share information with the supplier, and communicate with the battery management system to predict serious safety risks such as battery thermal runaway in real time. Early prevention of high-risk accidents such as fires; at the same time, through sophisticated monitoring sensors, real-time capture of dangerous information such as thermal runaway of the battery pack, combined with the fire protection system inside the power exchange cabinet, by submerging the battery pack with water-based fire extinguishing agent, the battery pack is cooled, and the battery pack is blocked. Thermal break out of control, to achieve effective elimination of fire hazards.

By setting up the battery management system, real-time communication with the supplier can be carried out to make the whole battery exchange process transparent and clear. The supplier can also conduct revenue analysis based on real-time data. There are two main methods of analysis and management, namely time-of-use electricity price management and Capacity fee management, specifically as follows:

Time-of-use electricity price management: charge the battery when the electricity price is low, and discharge the battery to the local load when the electricity price is high, and arbitrage (use) by buying low and selling high or reducing the expenditure on local electricity charges. The main factor affecting the income is the peak and valley electricity price. In addition, the efficiency of the power distribution system, discharge time and related subsidies will also directly affect the amount of income. This analysis takes a length of time, calculates the charging power, discharging power, power loss, charging electricity fee, and discharging electricity fee within the time range, and shows the income.

Capacity electricity fee management: The capacity electricity fee is based on the user's transformer capacity or maximum demand (that is, the maximum value of the average load every 15 minutes or 30 minutes in a month) as the basis for calculating electricity prices, and is charged monthly, not based on the actual power consumption. transfer. In the capacity electricity fee management, the income is realized by saving the electricity in the period of low capacity fee and using it in the period of high capacity fee, thereby reducing the power consumption of users and reducing the capacity fee. Basic electricity charge management is mainly for industrial users. The main factors affecting revenue include: capacity/demand rate, energy storage capacity, discharge time, etc. This analysis takes monthly as the time unit, obtains the maximum demand in the current month, and calculates the basic capacity electricity fee. This maximum demand is compared with the previous maximum demand without power distribution system, and the previous basic electricity fee is calculated to obtain the income.

According to the embodiments of the present disclosure, the present disclosure also provides an electronic device, a readable storage medium, and a computer program product.

Referring to FIG. 7 to describe the fourth aspect of the present invention, an electronic device 700 is provided, including: at least one processor; and a memory connected in communication with the at least one processor; Instructions executed by the at least one processor, the instructions are executed by the at least one processor, so that the at least one processor can execute the above power allocation method.

Electronic device 700 is intended to represent various forms of digital computers, such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframes, and other suitable computers. Electronic device 700 may also represent various forms of mobile devices, such as personal digital processing, cellular telephones, smartphones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions, are by way of example only, and are not intended to limit implementations of the disclosure described and/or claimed herein.

The device 700 comprises a computing unit 701 capable of performing various appropriate actions and functions in accordance with a computer program stored in a read only memory (ROM) 702 or loaded from a storage unit 708 into a random access memory (RAM) 703. deal with. In the RAM 703, various programs and data necessary for the operation of the device 700 can also be stored. The computing unit 701 , ROM 702 , and RAM 703 are connected to each other through a bus 704 . An input/output (I/O) interface 705 is also connected to the bus 704 .

Multiple components in the device 700 are connected to the I/O interface 705, including: an input unit 706, such as a keyboard, a mouse, etc.; an output unit 707, such as various types of displays, speakers, etc.; a storage unit 708, such as a magnetic disk, an optical disk, etc. ; and a communication unit 709, such as a network card, a modem, a wireless communication transceiver, and the like. The communication unit 709 allows the device 700 to exchange information/data with other devices over a computer network such as the Internet and/or various telecommunication networks.

The computing unit 701 may be various general-purpose and/or special-purpose processing components having processing and computing capabilities. Some examples of computing units 701 include, but are not limited to, central processing units (CPUs), graphics processing units (GPUs), various dedicated artificial intelligence (AI) computing chips, various computing units that run machine learning model algorithms, digital signal processing processor (DSP), and any suitable processor, controller, microcontroller, etc. The computing unit 701 executes the various methods and processes described above, such as the power allocation method. For example, in some embodiments, the power distribution method may be implemented as a computer software program tangibly embodied on a machine-readable medium, such as storage unit 708 . In some embodiments, part or all of the computer program may be loaded and/or installed on the device 700 via the ROM 702 and/or the communication unit 709 . When the computer program is loaded into the RAM 703 and executed by the computing unit 701, one or more steps of the power distribution method described above may be performed. Alternatively, in other embodiments, the computing unit 701 may be configured in any other appropriate way (for example, by means of firmware) to execute the power distribution method.

Various implementations of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips Implemented in a system of systems (SOC), load programmable logic device (CPLD), computer hardware, firmware, software, and/or combinations thereof. These various embodiments may include being implemented in one or more computer programs executable and/or interpreted on a programmable system including at least one programmable processor, the programmable processor Can be special-purpose or general-purpose programmable processor, can receive data and instruction from storage system, at least one input device, and at least one output device, and transmit data and instruction to this storage system, this at least one input device, and this at least one output device an output device.

Program codes for implementing the methods of the present disclosure may be written in any combination of one or more programming languages. These program codes may be provided to a processor or controller of a general-purpose computer, a special purpose computer, or other programmable data processing devices, so that the program codes, when executed by the processor or controller, make the functions/functions specified in the flow diagrams and/or block diagrams Action is implemented. The program code may execute entirely on the machine, partly on the machine, as a stand-alone software package partly on the machine and partly on a remote machine or entirely on the remote machine or server.

In the context of the present disclosure, a machine-readable medium may be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, apparatus, or device. A machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination of the foregoing. More specific examples of machine-readable storage media would include one or more wire-based electrical connections, portable computer disks, hard disks, Random Access Memory (RAM), Read Only Memory (ROM), Erasable Programmable Read Only Memory (EPROM or flash memory), optical fiber, compact disk read only memory (CD-ROM), optical storage, magnetic storage, or any suitable combination of the foregoing.

To provide for interaction with the user, the systems and techniques described herein can be implemented on a computer having a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user. ); and a keyboard and pointing device (eg, a mouse or a trackball) through which a user can provide input to the computer. Other kinds of devices can also be used to provide interaction with the user; for example, the feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and can be in any form (including Acoustic input, speech input or, tactile input) to receive input from the user.

The systems and techniques described herein can be implemented in a computing system that includes back-end components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes front-end components (e.g., as a a user computer having a graphical user interface or web browser through which a user can interact with embodiments of the systems and techniques described herein), or including such backend components, middleware components, Or any combination of front-end components in a computing system. The components of the system can be interconnected by any form or medium of digital data communication, eg, a communication network. Examples of communication networks include: Local Area Network (LAN), Wide Area Network (WAN) and the Internet.

A computer system may include clients and servers. Clients and servers are generally remote from each other and typically interact through a communication network. The relationship of client and server arises by computer programs running on the respective computers and having a client-server relationship to each other. The server can be a cloud server, a server of a distributed system, or a server combined with a blockchain.

It should be understood that steps may be reordered, added or deleted using the various forms of flow shown above. For example, each step described in the present disclosure may be executed in parallel, sequentially, or in a different order, as long as the desired result of the technical solution disclosed in the present disclosure can be achieved, no limitation is imposed herein.

The specific implementation manners described above do not limit the protection scope of the present disclosure. It should be apparent to those skilled in the art that various modifications, combinations, sub-combinations and substitutions may be made depending on design requirements and other factors. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present disclosure shall be included within the protection scope of the present disclosure.

Claims (10)

1. A method of power distribution, comprising:

placing the battery to be charged into a battery changing cabinet, and establishing communication with a battery management system;

charging the battery to be charged according to a charging strategy provided by the battery management system to form a battery to be used;

controlling the energy flow between the power grid and the standby battery according to the power grid condition and the electric quantity distribution strategy; the energy flow includes: island mode, grid charging mode, battery power mode; wherein,,

in the island mode, when a power grid fails, a fully charged battery is utilized to charge a power failure battery;

the power grid charging mode is used for charging the battery when the power grid is normally used;

and in the battery power transmission mode, when the power grid is not powered and needs power, the battery is used as a power source to supply power to the power grid for emergency.

2. The method for power distribution according to claim 1, wherein,

the electric quantity distribution strategy is a strategy for determining a charging and discharging sequence, starting and stopping charging and discharging, locking and recycling batteries and starting safety measures according to the grade of a provider, the grade of a user, the grade of a battery, a settlement mode, a charging time place and a charging amount.

3. The method for power distribution according to claim 1, wherein,

and the energy flow between the power grid and the standby battery is controlled, and an energy controller is formed by a bidirectional DC-DC voltage-increasing and-decreasing device and a DC/AC alternating-current-direct-current conversion device to perform power control and charge-discharge conversion.

4. The method for power distribution according to claim 3, wherein,

the bidirectional DC-DC buck-boost device adopts a single-stage PWM full-bridge topology to regulate active power and passive power of a power grid, and comprises the following components: the system comprises a bidirectional PWM inversion loop, a network side filter, a direct current side protection device, an alternating current side protection device and a digital control loop arranged on the periphery;

the DC/AC alternating current-direct current conversion device regulates and controls the converter level according to different types of the accessed energy sources, converter types and control targets; the converter stage regulation includes: maximum power point tracking, direct current bus voltage control, direct power control, constant voltage constant frequency control, virtual synchronous machine control, reactive power regulation control, droop control, constant voltage/constant current/constant power charge and discharge control.

5. The method for power distribution according to claim 3, wherein,

the energy controller is communicated with the battery management system, and the energy flow between the battery and the power grid is adjusted in real time through the real-time battery state information in the battery management system.

6. The method for power distribution according to claim 1, wherein,

the charging of the battery to be charged according to the charging strategy provided by the battery management system to form a battery to be used comprises the following steps:

physical connection: the battery to be charged is physically connected with the charging interface, is communicated with the charging module, and simultaneously starts the battery management system;

and (3) battery detection: the charging module carries out communication detection on the battery, simultaneously communicates with the battery management system, receives feedback authentication of the battery management system and determines whether to start charging or not;

charging parameter configuration: under the condition of determining charging, the battery management system acquires a battery number field, determines the charging strategy, assists the charging module in carrying out charging parameter configuration of the battery, and sets electric quantity output for charging after the configuration is successful;

charging: in the charging process, the battery and the charging module are in a communication state, and the battery management system acquires battery state information and performs parameter detection to assist the charging module to timely adjust the electric quantity output until the battery is full;

end of charging: and when the charging is finished, the charging module stops charging and enters a battery state detection state, and the battery management system stops and enters an idle state.

7. The method for power distribution as claimed in claim 6, wherein,

the charging strategy is a strategy for determining the priority order of battery charging according to the grade of a provider, the grade of a user, the grade of a battery, a settlement mode, a charging time place and a charging amount;

the charging parameters include: charging voltage, charging current, charging amount, initial electric quantity;

the battery state information includes: cell voltage, environment and battery internal temperature, battery remaining capacity percentage, charging time, battery health, total voltage, total current, average voltage, power, differential pressure, ampere-hour, insurance information.

8. An electrical power distribution apparatus, comprising:

the communication module is used for establishing communication between the battery to be charged and the battery management system;

the charging module is used for receiving a charging strategy provided by the battery management system and charging the battery to be charged to form a battery to be used;

the energy control module is used for controlling energy flow between a power grid and the standby battery;

the mode selection module is used for selecting one energy flow of an island mode, a power grid charging mode and a battery power transmission mode according to the power grid condition and the electric quantity distribution strategy.

9. A power conversion cabinet, characterized in that a power conversion cabinet according to any one of claims 1-7 is implemented by using the power distribution apparatus according to claim 8.

10. An electronic device, comprising:

at least one processor; and

a memory communicatively coupled to the at least one processor; wherein,,

the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the power distribution method of any one of claims 1-7.