Autonomous driving mobile energy storage apparatus, off-grid photovoltaic energy storage and charging-delivery power system, and method

Abstract

An autonomous driving mobile energy storage apparatus, an off-grid photovoltaic energy storage and charging-delivery power system, and a method. The autonomous driving mobile energy storage apparatus comprises: a battery energy storage module and a power delivery device. The battery energy storage module is fixedly arranged on the power delivery device; the battery energy storage module has a charging end configured to acquire electric power and a discharging end configured to be connected to an electric device; the battery energy storage module is used for storing the acquired electric energy; and the battery energy storage module is further configured to transmit electric energy to the electric device when connected to the electric device. The power delivery device is used for determining the position of the electric device on the basis of charging control information, and driving the battery energy storage module to move to the position of the electric device. The off-grid photovoltaic energy storage and charging-delivery power system comprises the mobile energy storage apparatus, an isolated-grid photovoltaic power station, and a local charging pile. The present invention further relates to an off-grid charging-power delivery method, comprising: on the basis of first battery level information and a first position of each battery energy storage module, second battery level information and a second position of each electric device, and a power usage priority of each electric device, determining a target autonomous driving mobile energy storage apparatus and a target electric device, and performing path planning. An autonomous driving mobile energy storage apparatus can transmit power without establishing a connection to a power grid, and can operate independently of the power grid, thereby reducing high costs of power distribution network construction.

Description

Autonomous mobile energy storage device, off-grid type light storage charging and power transmission system and method

[0001] Cross-reference to Related Applications

[0002] The present application claims priority to the Chinese patent application No. 2024113581656, filed on September 26, 2024, entitled "Autonomous mobile energy storage device and off-grid type light storage charging and power transmission system", the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0003] The present application relates to the technical field of power grid, in particular to an autonomous mobile energy storage device, an off-grid type light storage charging and power transmission system and a method. BACKGROUND

[0004] In recent years, new energy power station construction is changing rapidly, and electric vehicles are becoming more and more popular in China. The explosive growth of electric vehicles has led to a shortage of public charging facilities. Currently, fast charging, super charging and other charging facilities are used on the power supply side to alleviate the problem of electric vehicle charging. Since vehicle charging is a random load, it is very costly to solve the limited distribution capacity from the grid side, so electric vehicle light storage charging stations have emerged.

[0005] However, the existing light storage charging station has limited photovoltaic power generation, limited energy storage capacity, and an increase in fast charging and super charging piles, resulting in a large load on the power grid. Moreover, most existing light storage charging stations are concentrated in commercial areas, industrial areas and residential areas, and there is a serious shortage along the highways that must be traveled on long trips, and most of the energy of the light storage charging station comes from non-renewable energy sources. Therefore, in order to solve the problems of existing light storage charging stations, a new light storage charging and power transmission system is urgently needed.

[0006] SUMMARY

[0007] The present application aims to solve the problems in the prior art, and provides an autonomous mobile energy storage device, an off-grid type light storage charging and power transmission system and a method, which can make photovoltaic energy storage operate independently of the power grid and save costs.

[0008] To achieve the above-mentioned purpose, the technical solutions adopted by the embodiments of the present application are as follows:

[0009] In a first aspect, the present application provides an autonomous mobile energy storage device, comprising: a battery energy storage module and a power transmission device.

[0010] The battery energy storage module is fixedly arranged on the power transmission device.

[0011] The charging end of the battery energy storage module is used to obtain electrical energy, and the discharging end of the battery energy storage module is used to connect an electrical device.

[0012] The battery energy storage module is configured to store the acquired electric energy, and is further configured to transmit the electric energy to the electric device when the battery energy storage module is connected to the electric device.

[0013] The power transmission device is configured to determine the location of the electric device according to the charging control information, and drive the battery energy storage module to move to the location of the electric device.

[0014] Optionally, the battery energy storage module comprises a battery pack unit and a maximum power point tracking power supply unit.

[0015] The charging end of the maximum power point tracking power supply unit is configured to acquire electric energy from the isolated network photovoltaic power station, the discharging end of the maximum power point tracking power supply unit is configured to connect to the electric device and the battery pack unit.

[0016] The maximum power point tracking power supply unit is configured to optimize the electric energy provided by the isolated network photovoltaic power station, and transmit the electric energy to the battery pack unit.

[0017] The maximum power point tracking power supply unit is configured to transmit the electric energy to the electric device.

[0018] The battery pack unit is configured to receive and store the electric energy transmitted by the maximum power point tracking power supply unit.

[0019] Optionally, the battery energy storage module further comprises a direct current to direct current power supply unit.

[0020] The direct current to direct current power supply unit is connected to the battery pack unit and the electric device, respectively.

[0021] The direct current to direct current power supply unit is configured to transmit electric energy between the battery pack unit and the direct current to direct current power supply unit, and is further configured to transmit electric energy to the electric device.

[0022] Optionally, the battery energy storage module further comprises a direct current to alternating current power supply unit.

[0023] The direct current to alternating current power supply unit is connected to the direct current to direct current power supply unit and the electric device, respectively.

[0024] The direct current to alternating current power supply unit is configured to transmit electric energy between the direct current to direct current power supply unit and the direct current to alternating current power supply unit, and is further configured to transmit electric energy to the electric device.

[0025] Optionally, the battery energy storage module further comprises an energy management unit.

[0026] The energy management unit is connected to the maximum power point tracking power supply unit, the direct current to direct current power supply unit, and the direct current to alternating current power supply unit, respectively.

[0027] The energy management unit is configured to manage the maximum power point tracking power supply unit, the direct current-direct current power supply unit, and the direct current-alternating current power supply unit respectively.

[0028] Optionally, the battery pack unit comprises a storage battery and a battery management subunit.

[0029] The storage battery is connected with the battery management subunit.

[0030] The storage battery is configured to store the electric energy transmitted by the maximum power point tracking power supply unit and the electric energy transmitted by the direct current-direct current power supply unit.

[0031] The battery management subunit is configured to manage the storage battery.

[0032] Optionally, the power transmission device comprises an automated guided vehicle.

[0033] The battery energy storage module is fixedly arranged on the automated guided vehicle.

[0034] The automated guided vehicle is configured to determine the position of the power consumption device according to the charging control information, and drive the battery energy storage module to move to the position of the power consumption device.

[0035] Optionally, the power transmission device comprises an unmanned cargo vehicle.

[0036] The battery energy storage module is fixedly arranged on the unmanned cargo vehicle.

[0037] The unmanned cargo vehicle is configured to determine the position of the power consumption device according to the charging control information, and drive the battery energy storage module to move to the position of the power consumption device.

[0038] In a second aspect, the embodiments of the present application further provide an off-grid type light storage and charging power system, comprising the automated driving mobile energy storage device, the isolated network photovoltaic power station, and the local charging pile of the first aspect.

[0039] The isolated network photovoltaic power station is configured to provide electric energy to the battery energy storage module in the automated driving mobile energy storage device, and the local charging pile is connected with the discharging end of the battery energy storage module.

[0040] The charging end of the battery energy storage module is configured to obtain electric energy, and the discharging end of the battery energy storage module is configured to be connected with the local charging pile. The automated driving mobile energy storage device charges the to-be-charged local charging pile according to the first charging control information, so that the to-be-charged local charging pile stores electric energy.

[0041] Optionally, the automatic driving mobile energy storage device is further configured to transmit electric energy to a to-be-charged device connected to the local charging pile according to the second charging control information, so as to charge the to-be-charged device.

[0042] Optionally, the automatic driving mobile energy storage device is further configured to charge a to-be-charged device located at a location of the local charging pile according to the third charging control information.

[0043] Optionally, the system further comprises at least one transformer substation.

[0044] The automatic driving mobile energy storage device is configured to move to a location of a target transformer substation according to the fourth charging control information, and connect to a to-be-charged unit in the target transformer substation, and charge the to-be-charged unit.

[0045] Optionally, the system further comprises at least one peripheral charging station.

[0046] The automatic driving mobile energy storage device is configured to move to a location of a target peripheral charging station according to the fifth charging control information, and connect to a to-be-charged pile in the target peripheral charging station, and charge the to-be-charged pile, so that the to-be-charged pile stores electric energy.

[0047] Optionally, the automatic driving mobile energy storage device is further configured to move to a location of a target peripheral charging station according to the sixth charging control information, and charge a power consumption device connected to a charging pile in the target peripheral charging station.

[0048] Optionally, the system further comprises a cloud server.

[0049] The cloud server is connected to each of the automatic driving mobile energy storage devices, each local power consumption device, each power consumption device in the transformer substations, and each power consumption device in the peripheral charging stations.

[0050] The cloud server sends the first charging control information or the second charging control information or the third charging control information to the automatic driving mobile energy storage devices based on the first electric quantity information and the first position of each of the automatic driving mobile energy storage devices, and the second electric quantity information and the second position of each local power consumption device, wherein the local power consumption device comprises a local charging pile, a to-be-charged device connected to the local charging pile, and a to-be-charged device located at a location of the local charging pile.

[0051] The cloud server sends the fourth charging control information to each of the automatic driving mobile energy storage devices based on the second electric quantity information and the second position of each transformer substation, and the first electric quantity information and the first position of each of the automatic driving mobile energy storage devices.

[0052] The cloud server sends fifth charging control information or sixth charging control information to each of the autonomous mobile energy storage devices based on second power information, second positions of power consumption devices in each of the surrounding charging stations, first power information and first positions of each of the autonomous mobile energy storage devices, the power consumption devices in each of the surrounding charging stations including surrounding charging piles and to-be-charged devices connected to the surrounding charging piles.

[0053] In a third aspect, the embodiments of the present application further provide a method applied to a cloud server, the method comprising:

[0054] obtaining first power information and first positions of battery energy storage modules on each of the autonomous mobile energy storage devices, and second power information and second positions of each of the power consumption devices, the power consumption devices including each of the local power consumption devices, each of the power consumption devices in each of the transformer substations, and each of the surrounding power consumption devices in each of the surrounding charging stations;

[0055] determining a target autonomous mobile energy storage device and a target power consumption device according to the first power information, the first positions, the second power information, the second positions, and power consumption priorities of each of the power consumption devices;

[0056] performing path planning according to the first position of the target autonomous mobile energy storage device and the second position of the target power consumption device, determining a target path of the target autonomous mobile energy storage device, so that the target autonomous mobile energy storage device moves to the second position of the target power consumption device according to the target path, and transmits electric energy to the target power consumption device.

[0057] Optionally, the determining of the target autonomous mobile energy storage device and the target power consumption device according to the first power information, the first positions, the second power information, the second positions, and the power consumption priorities of each of the power consumption devices comprises:

[0058] determining the target autonomous mobile energy storage device according to the first power information.

[0059] determining the target power consumption device according to the first position of the target autonomous mobile energy storage device, the second power information, the second positions, and the power consumption priorities of each of the power consumption devices.

[0060] Optionally, the determining of the target autonomous mobile energy storage device according to the first power information comprises:

[0061] selecting, from the first power information, an autonomous mobile energy storage device corresponding to first power information with the highest power as the target autonomous mobile energy storage device.

[0062] Optionally, the target power consumption device is determined according to the first position of the target automatic driving mobile energy storage device, the second power information, the second position, and the power consumption priority of each power consumption device.

[0063] At least one initial power consumption device is determined according to the distance between the second position of each power consumption device and the first position of the target automatic driving mobile energy storage device and a preset distance threshold.

[0064] At least one intermediate power consumption device is determined according to the second power information of each initial power consumption device and a power threshold.

[0065] The target power consumption device is determined according to the power consumption priority of each intermediate power consumption device.

[0066] Optionally, the target power consumption device is determined according to the first position of the target automatic driving mobile energy storage device, the second power information, the second position, and the power consumption priority of each power consumption device, and further comprising:

[0067] At least one initial power consumption device is determined according to the second power information of each power consumption device and a power threshold.

[0068] At least one intermediate power consumption device is determined according to the distance between the second position of each initial power consumption device and the first position of the target automatic driving mobile energy storage device and a preset distance threshold.

[0069] The target power consumption device is determined according to the power consumption priority of each intermediate power consumption device.

[0070] The beneficial effects of the present application are:

[0071] The application provides an automatic driving mobile energy storage device, an off-grid type light storage charging power supply system and a method. BRIEF DESCRIPTION OF DRAWINGS

[0072] In order to more clearly illustrate the technical solutions of the embodiments of the application, the drawings needed to be used in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some of the embodiments of the application, and therefore should not be regarded as a limitation to the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0073] FIG. 1 is a structural schematic diagram of an automatic driving mobile energy storage device according to an embodiment of the application;

[0074] FIG. 2 is a structural schematic diagram of a battery energy storage module according to an embodiment of the application;

[0075] FIG. 3 is a structural schematic diagram of an off-grid type light storage charging power supply system according to an embodiment of the application;

[0076] FIG. 4 is a structural schematic diagram of another off-grid type light storage charging power supply system according to an embodiment of the application;

[0077] FIG. 5 is a flow schematic diagram of an off-grid type charging method according to an embodiment of the application;

[0078] FIG. 6 is a flow schematic diagram of another off-grid type charging method according to an embodiment of the application;

[0079] FIG. 7 is a flow schematic diagram of another off-grid type charging method according to an embodiment of the application;

[0080] FIG. 8 is a flow schematic diagram of another off-grid type charging method according to an embodiment of the application. DETAILED DESCRIPTION

[0081] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. It should be understood that the drawings in the present application only serve the purpose of illustration and description, and do not serve to limit the protection scope of the present application. In addition, it should be understood that the schematic drawings are not drawn according to the actual proportions. The flowcharts used in the present application show the operations implemented according to some embodiments of the present application. It should be understood that the operations of the flowcharts can not be implemented in sequence, and the steps without logical context relationship can be reversed in sequence or implemented simultaneously. In addition, one or more other operations can be added to the flowcharts or one or more operations can be removed from the flowcharts under the guidance of the content of the present application.

[0082] In addition, the described embodiments are only some of the embodiments of the present application, not all the embodiments. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0083] It should be noted that the term "comprising" will be used in the embodiments of the present application to indicate the presence of the features declared thereafter, but does not exclude the addition of other features.

[0084] FIG. 1 is a structural schematic diagram of an automatic driving mobile energy storage device provided by the embodiments of the present application. As shown in FIG. 1, the automatic driving mobile energy storage device can include a battery energy storage module and a power transmission device.

[0085] Optionally, the battery energy storage module can be fixedly arranged on the power transmission device, and the power transmission device is a movable device. Specifically, the fixing manner can include welding fixed connection, bolt fixed connection, riveting fixed connection, shaft and hole cooperation fixed connection, key connection, threaded compression fixed connection, etc. One of the fixing manners can be selected to fix the battery energy storage module on the power transmission device according to the actual situation.

[0086] Optionally, the battery energy storage module can include a charging end and a discharging end. The charging end of the battery energy storage module can be configured to obtain electric energy, and the discharging end of the battery energy storage module can be configured to be connected to an electric device. The electric device can include a charging pile, an electric vehicle, an electric bicycle, a power substation and other loads that need to be charged.

[0087] In some embodiments, the power can be obtained from the isolated grid photovoltaic power station or the energy conversion device of the self-driving mobile energy storage device. For example, a photovoltaic device can be installed on the self-driving mobile energy storage device, which can be used to generate electricity to provide power. Of course, the power acquisition method is not limited to this, and can be flexibly set according to the actual application scenario.

[0088] Optionally, the photovoltaic power station is a system for generating electricity by using solar energy. The solar radiation energy is directly converted into electric energy by special materials such as crystalline silicon panels and inverters. The traditional photovoltaic power station needs to be connected to the power grid to transmit the converted electric energy of the photovoltaic power station to the power grid. The isolated grid photovoltaic power station in the present application is a photovoltaic power station that can operate independently of the power grid. An isolated grid photovoltaic power station can be set up in different regions.

[0089] Optionally, the power transmission device can be configured to determine the location of the power consumption device according to the charging control information, and drive the battery energy storage module to move to the location of the power consumption device. The charging control information can include the location of the external device that needs to be charged. The charging control information can be pre-set, for example, at time point 1, the power consumption device at position A is charged, at time point 2, the power consumption device at position B is charged, and at time point 3, the power consumption device at position C is charged. It can also be controlled according to the battery capacity in the battery energy storage module.

[0090] In this embodiment, the battery energy storage module is fixedly arranged on the power transmission device, and the charging end of the battery energy storage module can obtain electric energy and store the obtained electric energy. The discharging end of the battery energy storage module can be connected to the power consumption device. The power transmission device can drive the battery energy storage module to move to the location of the power consumption device according to the charging control information, so as to transmit electric energy to the power consumption device through the discharging end of the battery energy storage module. The battery energy storage module obtains electric energy from the isolated grid photovoltaic power station and directly stores the electric energy in the battery energy storage module, without the need to establish a connection with the power grid to transmit electric energy, so as to operate independently of the power grid, saving the construction cost of the expensive power distribution network. In addition, the battery energy storage module can be moved by the power transmission device to conveniently transmit electric energy to other power consumption devices around that need electric energy, so as to ensure efficient consumption of photovoltaic power generation. In addition, the electric energy of the battery energy storage module comes from renewable green energy, which is conducive to environmental protection and energy security.

[0091] FIG. 2 is a structural schematic diagram of a battery energy storage module according to an embodiment of the present application. As shown in FIG. 2, the battery energy storage module can include a battery pack unit and a maximum power point tracking power supply unit. In FIG. 2, the solid line represents the power flow, and the dashed line represents the signal flow.

[0092] Optionally, the charging end of the maximum power point tracking power supply unit can be configured to obtain electrical energy from the isolated network photovoltaic power station, the discharging end of the maximum power point tracking power supply unit can be connected to the electrical equipment and the battery pack unit, wherein the electrical equipment connected to the discharging end of the maximum power point tracking power supply unit can be direct current fast charging electrical equipment, such as an electric vehicle, when the electrical equipment connected to the maximum power point needs to be charged, the maximum power point tracking power supply unit can transmit the obtained electrical energy to the electric vehicle.

[0093] The maximum power point tracking power supply unit (MPPT), also known as photovoltaic power optimizer and component power optimizer, can improve the energy efficiency and stability of photovoltaic equipment.

[0094] Optionally, the maximum power point tracking power supply unit can optimize the electrical energy provided by the isolated network photovoltaic power station, MPPT is a kind of through adjusting the working state of the electrical module of the isolated network photovoltaic power station, optimizing its working state, specifically, the maximum power point tracking power supply unit can detect the power generation voltage of the isolated network photovoltaic power station in real time, and track the highest voltage and current value, so that the isolated network photovoltaic power station can output electrical energy with maximum power, thereby maximizing the extraction and utilization of solar energy. And the maximum power point tracking power supply unit transmits the electrical energy obtained from the isolated network photovoltaic power station to the battery pack unit, which can effectively store the direct current output by the isolated network photovoltaic power station in the battery pack unit.

[0095] Optionally, the battery pack unit can receive the electrical energy transmitted by the maximum power point tracking power supply unit and store the received electrical energy.

[0096] Continuing to refer to FIG. 2, the battery energy storage module can further include a first direct current-direct current power supply unit.

[0097] The first direct current-direct current power supply unit (DC / DC) can realize direct current voltage conversion, use different electronic components and control circuits to convert the input direct current voltage into the required output voltage, and can provide functions such as voltage boosting, voltage reducing, phase inversion and isolation according to actual needs, to adapt to the power requirements of different devices.

[0098] Optionally, the DC-DC power supply unit can be connected with the battery pack unit and the electrical equipment respectively. Specifically, the DC-DC power supply unit can be bidirectionally connected with the battery pack, and the output end of the DC-DC power supply unit can be connected with the electrical equipment. Then, the DC-DC power supply unit can transmit electric energy between the battery pack unit, and charge and discharge the battery pack unit. The DC-DC power supply unit can also transmit electric energy to the electrical equipment. The electrical equipment connected with the DC-DC power supply unit is a charging device requiring DC power supply.

[0099] Specifically, the DC-DC power supply unit can receive DC voltage of DC power supply from the battery pack unit, convert the received DC voltage of DC power supply into another DC voltage required by the electrical equipment, and transmit the converted another DC voltage to the electrical equipment. The DC-DC power supply unit can also charge the battery pack unit. The DC-DC power supply unit can be used as a power supply of electronic equipment, and provide power supply for application specific integrated circuit, digital signal processor, microprocessor, memory and other digital or analog load.

[0100] Continuing to refer to FIG. 2, the battery energy storage module can further include a DC-AC power supply unit.

[0101] The DC-AC power supply unit (Direct Current-Alternating Current, DC / AC) can convert DC voltage into AC voltage, and is usually composed of a DC input end, an AC output end, a control circuit and a power switching device. The DC input end can accept voltage from different power supplies, such as batteries, solar energy, wind energy, etc., and the AC output end can provide stable AC power.

[0102] Optionally, the DC-AC power supply unit can be bidirectionally connected with the DC-DC power supply unit. Specifically, the DC-AC power supply unit can receive DC voltage output from the DC-DC power supply unit. The output end of the DC-AC power supply unit can be connected with the electrical equipment. The electrical equipment connected with the DC-AC power supply unit is a charging device requiring AC power supply, such as air conditioner, computer, television, mobile phone, camera, etc.

[0103] Specifically, the DC-AC power supply unit can receive DC voltage from the DC-DC power supply unit, convert the received DC voltage into AC voltage required by the electrical equipment, and transmit the converted AC voltage to the electrical equipment. The DC-AC power supply unit can also transmit electric energy to the power grid.

[0104] Optionally, the DC-AC power supply unit can also transmit electric energy to the DC-DC power supply unit. The DC-AC power supply unit can also be used to supply power to the battery, realize functions such as peak clipping and valley filling, and indirect V2G, etc.

[0105] Continuing to refer to FIG. 2, as shown in FIG. 2, the battery energy storage module can further include an energy management unit.

[0106] The energy management unit (EMS) is responsible for the control strategy of the energy storage system, which can affect the decay rate and cycle life of the battery in the system, thereby determining the economic type of the energy storage. On the other hand, it can monitor the faults and abnormalities in the system operation, and play an important role in timely and rapid protection of equipment and security.

[0107] Optionally, the energy management unit can be connected with the maximum power point tracking power supply unit, the direct current to direct current power supply unit and the direct current to alternating current power supply unit, specifically, the energy management unit can be in communication connection with the maximum power point tracking power supply unit, the direct current to direct current power supply unit and the direct current to alternating current power supply unit. The EMS can send control strategies to the maximum power point tracking power supply unit, the direct current to direct current power supply unit and the direct current to alternating current power supply unit respectively.

[0108] Optionally, the energy management unit can manage the maximum power point tracking power supply unit, the direct current to direct current power supply unit and the direct current to alternating current power supply unit respectively.

[0109] Optionally, the battery pack unit can include an energy storage battery and a battery management subunit.

[0110] The energy storage battery can include lithium ion battery, sodium ion battery, lithium polymer battery, lead-acid battery, ternary lithium battery, nickel-hydrogen battery, etc.

[0111] Optionally, the battery management subunit (BMS) can manage the energy storage battery and play a sensing role, mainly responsible for monitoring, evaluation, protection and balancing of the energy storage battery, and cooperate with the equipment for monitoring the state of the energy storage battery, in order to intelligently manage and maintain each energy storage battery, prevent overcharging and overdischarging of the energy storage battery, prolong the service life of the energy storage battery, and monitor the state of the energy storage battery. Generally, the BMS is a circuit board or a hardware box.

[0112] Optionally, the energy storage battery can be connected with the battery management subunit, and the energy storage battery can be configured to store the electric energy transmitted by the maximum power point tracking power supply unit, and also store the electric energy transmitted by the direct current to direct current power supply unit.

[0113] Optionally, the power transmitting device can comprise an automated guided vehicle. The battery energy storage module can be fixedly arranged on the automated guided vehicle. The automated guided vehicle can determine the location of the power consuming device according to the charging control information, and drive the battery energy storage module to move to the location of the power consuming device.

[0114] Optionally, the power transmitting device can comprise an unmanned freight vehicle. The battery energy storage module can be fixedly arranged on the unmanned freight vehicle. The unmanned freight vehicle can determine the location of the power consuming device according to the charging control information, and drive the battery energy storage module to move to the location of the power consuming device.

[0115] In some embodiments, the power transmitting device described above can further comprise a first DC-DC power supply unit and / or a first DC-AC power supply unit.

[0116] Optionally, when charging the power consuming device by the power transmitting device, the received DC voltage can be converted into the required DC voltage of the power consuming device by the first DC-DC power supply unit and transmitted to the power consuming device, or the received DC voltage can be converted into the required AC voltage of the power consuming device by the first DC-AC power supply unit and transmitted to the power consuming device. This is not limited here, and can be flexibly set according to the actual application scenario.

[0117] FIG. 3 is a structural schematic diagram of an off-grid type optical storage and charging power system provided by an embodiment of the present application. As shown in FIG. 3, the system can comprise at least one automated driving mobile energy storage device in FIG. 1, an isolated network photovoltaic power station, and a local charging pile.

[0118] Optionally, the isolated network photovoltaic power station can provide power to the battery energy storage module in the automated driving mobile energy storage device, and the local charging pile is connected to the discharge end of the battery energy storage module through a local charging pile interface. The local charging pile can be connected to an electric vehicle that is authorized to enter the parking space where the charging pile is located through a local charging interface.

[0119] Optionally, the charging end of the battery energy storage module can obtain power from the isolated network photovoltaic power station, and the discharge end of the battery energy storage module can be connected to the local charging pile. The automated driving mobile energy storage device charges the to-be-charged local charging pile according to the first charging control information, so that the to-be-charged local charging pile stores power. The first charging control information refers to charging the to-be-charged local charging pile to store power. Since there is one or more local charging piles, the identification of the to-be-charged local charging pile and the path of the automated driving mobile energy storage device moving to the to-be-charged local charging pile can be included in the first charging control information.

[0120] Optionally, if the local charging pile is connected to a to-be-charged device, such as an electric vehicle, an electric bicycle, etc., the battery energy storage module can also transmit electric energy to the to-be-charged device connected to the local charging pile according to the second charging control information to charge the to-be-charged device. The second control information refers to charging the to-be-charged device connected to the local charging pile, and the electric energy is not stored in the local charging pile, but is directly input into the to-be-charged device through the local charging pile. The second charging control information can include the identification of the to-be-charged device connected to the local charging pile and the path of the automatic driving mobile energy storage device moving to the to-be-charged device connected to the local charging pile.

[0121] Optionally, the automatic driving mobile energy storage device is also configured to charge the to-be-charged device according to the third charging control information, and the to-be-charged device refers to the charging device located at the local charging pile position. The battery energy storage module can directly charge the to-be-charged device located at the local charging pile position according to the third charging control information, for example, the battery energy storage module can directly charge the electric vehicle located at the local charging pile position according to the third charging control information, without going through the local charging pile. The third charging control information can include the identification of the to-be-charged device located at the local charging pile position and the path of the automatic driving mobile energy storage device moving to the to-be-charged device located at the local charging pile position.

[0122] The embodiment can realize the function of electric vehicle on-site charging through the local charging pile.

[0123] With reference to FIG. 3, the off-grid type light storage charging and power transmission system can further include at least one substation.

[0124] Optionally, the automatic driving mobile energy storage device can move to the location of the target substation according to the fourth charging control information, and connect to the to-be-charged unit in the target substation and charge the to-be-charged unit. The fourth charging control information can include the identification of the target substation, the location of the target substation, and the identification and location of the to-be-charged unit, and the fourth charging control information is for charging the to-be-charged unit in the target substation. The to-be-charged unit can refer to any charging substation device. The fourth charging control information can include the identification of the to-be-charged unit in the target substation and the path of the automatic driving mobile energy storage device moving to the to-be-charged unit in the target substation.

[0125] In the embodiment, when there is a place that needs to be powered around the automatic driving mobile energy storage device, the automatic driving mobile energy storage device can automatically move to the target place to power.

[0126] With reference to FIG. 3, the off-grid type light storage charging and power transmission system can further include at least one peripheral charging station.

[0127] Optionally, the autonomous mobile energy storage device can move to the location of the target peripheral charging station according to the fifth charging control information, and connect with the to-be-charged pile in the target peripheral charging station, and charge the to-be-charged pile to store the electric energy. The fifth charging control information is to charge the to-be-charged pile in the target peripheral charging station. The fifth charging control information can include the identification of the to-be-charged pile in the target peripheral charging station and the path of the autonomous mobile energy storage device moving to the to-be-charged pile in the target peripheral charging station.

[0128] Optionally, the autonomous mobile energy storage device is further configured to move to the location of the target peripheral charging station according to the sixth charging control information, and charge the to-be-charged equipment connected with the charging pile in the target peripheral charging station. The sixth control information refers to charging the to-be-charged equipment connected with the charging pile in the target peripheral charging station, and the electric energy is not stored in the charging pile in the target peripheral charging station, but is transmitted to the to-be-charged equipment through the charging pile in the target peripheral charging station. The sixth charging control information can include the identification of the to-be-charged equipment connected with the charging pile in the target peripheral charging station and the path of the autonomous mobile energy storage device moving to the to-be-charged equipment connected with the charging pile in the target peripheral charging station.

[0129] Optionally, the autonomous mobile energy storage device can preferentially charge the local charging pile, and the remaining electric energy can be used to charge the electric vehicles in the peripheral charging station through the autonomous mobile energy storage device, and if there is still remaining electric energy, the autonomous mobile energy storage device can be used to move to the power substation to transmit the remaining electric energy to the power substation.

[0130] Optionally, the off-grid type optical storage and charging power system can further include a cloud server.

[0131] Optionally, the cloud server can be connected with each autonomous mobile energy storage device, each local electric equipment, each electric equipment in the power substation, and each electric equipment in the peripheral charging station, and can obtain the first electric quantity information and the first position of each autonomous mobile energy storage device, and the second position and the second electric quantity information of each electric equipment.

[0132] Optionally, the cloud server can send the first charging control information or the second charging control information or the third charging control information to the autonomous mobile energy storage device based on the first electric quantity information and the first position of each autonomous mobile energy storage device, the second electric quantity information and the second position of each local electric equipment, wherein the local electric equipment includes a local charging pile, a to-be-charged equipment connected with the local charging pile, and a to-be-charged equipment at the location of the local charging pile.

[0133] Optionally, the cloud server can send fourth charging control information to each autonomous mobile energy storage device based on the second power information, the second location of each substation, the first power information, and the first location of each autonomous mobile energy storage device.

[0134] Optionally, the cloud server can send fifth charging control information or sixth charging control information to each autonomous mobile energy storage device based on the second power information, the second location of each peripheral charging station, the first power information, and the first location of each autonomous mobile energy storage device. The power-consuming equipment in the peripheral charging station includes the peripheral charging pile and the to-be-charged equipment connected to the peripheral charging pile.

[0135] FIG. 4 is a structural schematic diagram of another off-grid photovoltaic energy storage and charging power system provided by the embodiment of the present application. As shown in FIG. 4, the autonomous mobile energy storage devices can be distributed in a distributed manner. Multiple autonomous mobile energy storage devices can be distributed around a substation, and multiple autonomous mobile energy storage devices can also be distributed around a peripheral charging station, so as to reduce the photovoltaic construction cost and respond to the charging demand of electric vehicles nearby. The number of autonomous mobile energy storage devices, substations, and peripheral charging stations in FIG. 4 is only a schematic, and other numbers of autonomous mobile energy storage devices, substations, and peripheral charging stations can also be included. In the off-grid photovoltaic energy storage and charging power system, the numerous autonomous mobile energy storage devices are combined with the existing power grid to form a flexible power system with the substation as the center.

[0136] FIG. 5 is a flowchart of an off-grid charging method provided by the embodiment of the present application. The method is applied to the cloud server in the foregoing embodiment, as shown in FIG. 1. The method can include the following steps:

[0137] S101, obtaining the first power information, the first location of the battery energy storage module on each autonomous mobile energy storage device, and the second power information, the second location of each power-consuming equipment.

[0138] The power-consuming equipment can include: each local power-consuming equipment, such as each local charging pile, external charging equipment connected to each local charging pile, such as electric vehicles and electric bicycles, and external charging equipment at the location of the local charging pile; each power-consuming equipment in each substation, such as different types of substation equipment; and each peripheral power-consuming equipment in each peripheral charging station, such as each peripheral charging pile and external charging equipment connected to the peripheral charging pile.

[0139] S102, determining the target autonomous mobile energy storage device and the target power-consuming equipment according to the first power information, the first location, the second power information, the second location, and the power consumption priority of each power-consuming equipment.

[0140] Optionally, the target automatic driving mobile energy storage device and the target power consumption device can be determined according to the first electric quantity information, the first positions, the second electric quantity information, the second positions, and the power consumption priorities of the power consumption devices using a preset method.

[0141] S103, path planning is performed according to the first position of the target automatic driving mobile energy storage device and the second position of the target power consumption device, a target path of the target automatic driving mobile energy storage device is determined, so that the target automatic driving mobile energy storage device moves to the second position of the target power consumption device according to the target path and transmits electric energy to the target power consumption device.

[0142] Specifically, after the target path of the target automatic driving mobile energy storage device is determined, charging control information can be sent to the target automatic driving mobile energy storage device, and then the target automatic driving mobile energy storage device can move to the second position of the target power consumption device based on the charging control information.

[0143] Optionally, after the cloud server determines the target automatic driving mobile energy storage device and the target power consumption device, the second position of the target power consumption device can also be sent to the target automatic driving mobile energy storage device, so that the target automatic driving mobile energy storage device performs path planning according to the first position in the target automatic driving mobile energy storage device and the received second position of the target power consumption device, obtains a target path, and then moves to the second position of the target power consumption device based on the target path.

[0144] FIG. 6 is a flowchart of another off-grid charging and power supply method provided by an embodiment of the present application. As shown in FIG. 6, the determination of the target automatic driving mobile energy storage device and the target power consumption device in S102 above according to the first electric quantity information, the first positions, the second electric quantity information, the second positions, and the power consumption priorities of the power consumption devices can include:

[0145] S201, determining a target automatic driving mobile energy storage device according to the first electric quantity information.

[0146] The first electric quantity information can refer to the residual electric quantity information of each automatic driving mobile energy storage device.

[0147] S202, determining a target power consumption device according to the first position of the target automatic driving mobile energy storage device, the second electric quantity information, the second positions, and the power consumption priorities of the power consumption devices.

[0148] The second electric quantity information can refer to the residual electric quantity information of the electric equipment. The electric priority of the electric equipment can be that the local electric equipment has a higher priority than the peripheral electric equipment in the peripheral charging station, and the peripheral electric equipment in the peripheral charging station has a higher priority than the electric equipment in the power substation.

[0149] Optionally, the step S201 of determining the target autonomous mobile energy storage device according to the first electric quantity information can include:

[0150] Specifically, the autonomous mobile energy storage device corresponding to the first electric quantity information with the highest electric quantity can be selected from the first electric quantity information as the target autonomous mobile energy storage device.

[0151] FIG. 7 is a flowchart of another off-grid charging and power supply method provided by the embodiment of the present application. As shown in FIG. 7, the step S202 of determining the target electric equipment according to the first position of the target autonomous mobile energy storage device, the second electric quantity information, the second position, and the electric priority of the electric equipment can include:

[0152] S301, determining at least one initial electric equipment in the electric equipment according to the distance between the second position and the first position of the target autonomous mobile energy storage device and the preset distance threshold.

[0153] Specifically, the electric equipment corresponding to the second position with the distance between the second position and the first position of the target autonomous mobile energy storage device less than or equal to the preset distance threshold can be determined as the initial electric equipment.

[0154] For example, for the electric equipment 1, the electric equipment 2, the electric equipment 3, and the electric equipment 4, the distance 1 between the electric equipment 1 and the first position of the target autonomous mobile energy storage device is less than the preset distance threshold, the distance 2 between the electric equipment 2 and the first position of the target autonomous mobile energy storage device is greater than the preset distance threshold, the distance 1 between the electric equipment 3 and the first position of the target autonomous mobile energy storage device is equal to the preset distance threshold, and the distance 4 between the electric equipment 4 and the first position of the target autonomous mobile energy storage device is less than the preset distance threshold. The initial electric equipment determined is the electric equipment 1, the electric equipment 3, and the electric equipment 4.

[0155] S302, determining at least one intermediate electric equipment in the at least one initial electric equipment according to the second electric quantity information of the initial electric equipment and the electric quantity threshold.

[0156] Specifically, if the second electric quantity information of the initial electric equipment is less than the electric quantity threshold, the initial electric equipment corresponding to the second electric quantity can be determined as the intermediate electric equipment.

[0157] For example, for each of the initial power consuming devices: power consuming device 1, power consuming device 3, and power consuming device 4, where the second power information of power consuming device 1 is greater than the power threshold, the second power information of power consuming device 3 is less than the power threshold, and the second power information of power consuming device 4 is less than the power threshold, power consuming device 3 and power consuming device 4 are both intermediate power consuming devices.

[0158] S303, determining a target power consuming device according to the power consumption priority of each intermediate power consuming device.

[0159] Specifically, each intermediate power consuming device can be sorted in descending order according to the power consumption priority of each intermediate power consuming device, and the intermediate power consuming device ranked first is the target power consuming device.

[0160] Alternatively, if there are intermediate power consuming devices with the same power consumption priority, the target power consuming device can be determined by weighted calculation according to the second position and the second power information of each intermediate power consuming device. Specifically, the weighted result of the second position and the second power information of each intermediate power consuming device is calculated, and the power consuming device with a larger weighted result is the target power consuming device.

[0161] For example, if the priority of power consuming device 3 is higher than the priority of power consuming device 4, the target power consuming device is power consuming device 3.

[0162] For example, if the priority of power consuming device 3 is the same as the priority of power consuming device 4, the second position and the second power information of power consuming device 3 are weighted to obtain the weighted result of power consuming device 3, the second position and the second power information of power consuming device 4 are weighted to obtain the weighted result of power consuming device 4, and the weighted result of power consuming device 3 is less than the weighted result of power consuming device 4, the target power consuming device is power consuming device 4.

[0163] FIG. 8 is a flowchart of another off-grid charging and power supply method provided by an embodiment of the present application. As shown in FIG. 8, the determination of the target power consuming device according to the first position of the target automatic driving mobile energy storage device, the second power information, the second position, and the power consumption priority of each power consuming device in S202 can further include:

[0164] S401, determining at least one initial power consuming device from the power consuming devices according to the second power information of each power consuming device and the power threshold.

[0165] Specifically, if the second power information of the power consuming device is less than the power threshold, the power consuming device corresponding to the second power information is the initial power consuming device.

[0166] Exemplarily, for the power-using equipment 1, the power-using equipment 2, the power-using equipment 3 and the power-using equipment 4, the second electric quantity information of the power-using equipment 1 is less than the electric quantity threshold value, the second electric quantity information of the power-using equipment 2 is less than the electric quantity threshold value, the second electric quantity information of the power-using equipment 3 is greater than the electric quantity threshold value, and the second electric quantity information of the power-using equipment 4 is less than the electric quantity threshold value, and the determined initial power-using equipment is the power-using equipment 1, the power-using equipment 2 and the power-using equipment 3.

[0167] S402, determining at least one intermediate power-using equipment in the at least one initial power-using equipment according to a distance between the second position of each initial power-using equipment and the position of the target automatic driving mobile energy storage device and a preset distance threshold value.

[0168] Specifically, the initial power-using equipment corresponding to the second position of each initial power-using equipment and the first position of the target automatic driving mobile energy storage device is less than or equal to the preset distance threshold value, and the initial power-using equipment corresponding to the second position is taken as the intermediate power-using equipment.

[0169] Exemplarily, for each initial power-using equipment: the power-using equipment 1, the power-using equipment 2 and the power-using equipment 3, the distance 1 between the power-using equipment 1 and the first position of the target automatic driving mobile energy storage device is less than the preset distance threshold value, the distance 2 between the power-using equipment 2 and the first position of the target automatic driving mobile energy storage device is greater than the preset distance threshold value, and the distance 1 between the power-using equipment 3 and the first position of the target automatic driving mobile energy storage device is equal to the preset distance threshold value, and the determined intermediate power-using equipment is the power-using equipment 1 and the power-using equipment 3.

[0170] S403, determining the target power-using equipment according to the power-using priority of each intermediate power-using equipment.

[0171] Specifically, each intermediate power-using equipment can be sorted in a descending order according to the power-using priority of each intermediate power-using equipment, and the intermediate power-using equipment sorted in the first position is taken as the target power-using equipment.

[0172] Optionally, if there are intermediate power-using equipments with the same power-using priority, the target power-using equipment can be determined by weighted calculation according to the second position and the second electric quantity information of each intermediate power-using equipment. Specifically, the weighted result of the second position and the second electric quantity information of each intermediate power-using equipment is calculated, and the power-using equipment with a greater weighted result is taken as the target power-using equipment.

[0173] Exemplarily, if the priority of the power-using equipment 1 is higher than the priority of the power-using equipment 3, the target power-using equipment is the power-using equipment 1.

[0174] For example, if the priority of the electrical equipment 3 and the electrical equipment 1 is the same, the second position and the second power information of the electrical equipment 3 are weighted to obtain a weighted result of the electrical equipment 3, the second position and the second power information of the electrical equipment 1 are weighted to obtain a weighted result of the electrical equipment 1, and the weighted result of the electrical equipment 3 is less than the weighted result of the electrical equipment 1, the target electrical equipment is the electrical equipment 1.

[0175] In some embodiments, the electrical equipment can further include a second DC-DC power supply unit and / or a second DC-AC power supply unit.

[0176] Optionally, for the electrical equipment, after obtaining the electric energy, the electrical equipment can also charge other sub-electrical equipment by using the obtained electric energy. For example, the electrical equipment can be an electric vehicle, and the sub-electrical equipment can be an electric motorcycle, a mobile phone, a camera, a power bank, etc., which are not limited herein.

[0177] It can be understood that when the electrical equipment charges the sub-electrical equipment, the DC voltage of the electrical equipment can be converted into the DC voltage required by the sub-electrical equipment by the second DC-DC power supply unit and transmitted to the sub-electrical equipment, or the DC voltage of the electrical equipment can be converted into the AC voltage required by the sub-electrical equipment by the second DC-AC power supply unit and transmitted to the sub-electrical equipment, which are not limited herein and can be flexibly set according to actual application scenarios.

[0178] In some embodiments, the electrical equipment can include at least one of the following: a local electrical equipment, an electrical equipment in each transformer substation, an electrical equipment in each peripheral charging station, a household electrical equipment, an outdoor electrical equipment;

[0179] The local electrical equipment includes a local charging pile, a to-be-charged device connected to the local charging pile, and a to-be-charged device at the location of the local charging pile.

[0180] The electrical equipment in the peripheral charging station includes a peripheral charging pile and a to-be-charged device connected to the peripheral charging pile.

[0181] Optionally, the household electrical equipment can include but is not limited to a mobile phone, a household lighting device, a television, an air conditioner, an electric motorcycle, an induction cooker, a washing machine, etc.

[0182] Optionally, the outdoor electrical equipment can include but is not limited to outdoor lighting, outdoor sound, outdoor projector, outdoor electric grill, electric kettle, heater, etc.

[0183] In addition, the description of the local electrical equipment and the electrical equipment in the peripheral charging station can refer to the foregoing related content, which will not be repeated herein.

[0184] Those skilled in the art can clearly understand that, for the convenience and brevity of the description, the specific working process of the system and the device described above can refer to the corresponding process in the method embodiment, and will not be repeated in the present application. In the several embodiments provided in the present application, it should be understood that the disclosed system, device and method can be implemented by other means. The above-described device embodiments are only schematic, for example, the division of the modules is only a logical function division, and in actual implementation, there can be another division manner, for example, a plurality of modules or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the displayed or discussed mutual ones can be indirect coupling or communication connection through some communication interfaces, devices or modules, and can be electrical, mechanical or other forms.

[0185] In addition, each functional unit in each embodiment of the present application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. When the functions are realized in the form of software functional units and sold or used as independent products, they can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present application essentially or say the parts that make contributions to the prior art or parts of the technical solutions can be embodied in the form of software products, which are stored in a storage medium and include a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in each embodiment of the present application. The aforementioned storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk or an optical disk, and various media that can store program codes.

[0186] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Industrial applicability

[0187] By adopting the above scheme, the photovoltaic energy storage can operate independently of the power grid, saving the construction cost of the expensive power distribution network. Moreover, by driving the battery energy storage module to move through the automated guided vehicle, power can be conveniently supplied to other power consumption devices around, which can ensure efficient consumption of photovoltaic power generation, and manual cost can also be saved by supplying power through the automated guided vehicle.

Claims

1. An autonomous, self-driving mobile energy storage device, wherein, The battery energy storage module and the power transmission device are included. The battery energy storage module is fixedly arranged on the power transmission device. The charging end of the battery energy storage module is used to obtain electric energy, and the discharging end of the battery energy storage module is used to connect the power consumption device. The battery energy storage module is used to store the obtained electric energy, and the battery energy storage module is also used to transmit electric energy to the power consumption device when the power consumption device is connected. The power transmission device is used to determine the position where the power consumption device is located according to the charging control information, and drive the battery energy storage module to move to the position where the power consumption device is located. The battery energy storage module includes a battery pack unit and a maximum power point tracking power supply unit.

2. The self-driving mobile energy storage device of claim 1, wherein, The charging end of the maximum power point tracking power supply unit is used to obtain electric energy from the isolated network photovoltaic power station, and the discharging end of the maximum power point tracking power supply unit is used to connect the power consumption device and the battery pack unit. The maximum power point tracking power supply unit is used to optimize the electric energy provided by the isolated network photovoltaic power station and transmit the electric energy to the battery pack unit. The maximum power point tracking power supply unit is used to transmit electric energy to the power consumption device. The battery pack unit is used to receive and store the electric energy transmitted by the maximum power point tracking power supply unit. The battery energy storage module further includes a direct-current-to-direct-current power supply unit.

3. The self-driving mobile energy storage device of claim 2, wherein, The direct-current-to-direct-current power supply unit is connected with the battery pack unit and the power consumption device respectively. The direct-current-to-direct-current power supply unit is used to transmit electric energy between the battery pack unit and the direct-current-to-direct-current power supply unit, and the direct-current-to-direct-current power supply unit is also used to transmit electric energy to the power consumption device. The battery energy storage module further includes a direct-current-to-alternating-current power supply unit.

4. The self-driving mobile energy storage device of claim 3, wherein, The direct-current-to-alternating-current power supply unit is connected with the direct-current-to-direct-current power supply unit and the power consumption device respectively. The direct-current-to-alternating-current power supply unit is used to transmit electric energy between the direct-current-to-direct-current power supply unit and the direct-current-to-alternating-current power supply unit, and the direct-current-to-alternating-current power supply unit is also used to transmit electric energy to the power consumption device. The battery energy storage module further includes an energy management unit.

5. The self-driving mobile energy storage device of claim 2, wherein, The energy management unit is connected with the maximum power point tracking power supply unit, the direct-current-to-direct-current power supply unit and the direct-current-to-alternating-current power supply unit respectively. The energy management unit is used to manage the maximum power point tracking power supply unit, the direct-current-to-direct-current power supply unit and the direct-current-to-alternating-current power supply unit respectively. The battery pack unit includes an energy storage battery and a battery management subunit.

6. The self-driving mobile energy storage device of claim 2, wherein, The energy storage battery is connected with the battery management subunit. The energy storage battery is used to store the electric energy transmitted by the maximum power point tracking power supply unit and the direct-current-to-direct-current power supply unit. The battery management subunit is used to manage the energy storage battery. The power transmission device includes an automatic guided vehicle.

7. The self-driving mobile energy storage device of claim 1, wherein, The battery energy storage module is fixedly arranged on the automatic guided vehicle. The automatic guided vehicle is used to determine the position where the power consumption device is located according to the charging control information, and drive the battery energy storage module to move to the position where the power consumption device is located. The power transmission device includes an unmanned cargo transport machine.

8. The self-driving mobile energy storage device of claim 1, wherein, The battery energy storage module is fixedly arranged on the unmanned cargo transport machine. ​ The unmanned freighter is used for determining the position of the electric device according to the charging control information, and driving the battery energy storage module to move to the position of the electric device.

9. The self-driving mobile energy storage device of any one of claims 1-8, wherein, The power transmission device comprises a first DC-DC power supply unit and / or a first DC-AC power supply unit.

10. An off-grid type optical storage and power transmission system, wherein, The system comprises at least one automatic driving mobile energy storage device, a stand-alone photovoltaic power station and a local charging pile according to any one of claims 1-9; The stand-alone photovoltaic power station is used for providing electric energy to the battery energy storage module in the automatic driving mobile energy storage device, and the local charging pile is connected with the discharge end of the battery energy storage module; The charging end of the battery energy storage module is used for obtaining electric energy, and the discharge end of the battery energy storage module is used for connecting the local charging pile, and the automatic driving mobile energy storage device charges the to-be-charged local charging pile according to first charging control information, so that the to-be-charged local charging pile stores electric energy.

11. The off-grid type optical storage and charging power system according to claim 10, characterized in that, The automatic driving mobile energy storage device is also used for transmitting electric energy to a to-be-charged device connected with the local charging pile according to second charging control information, so as to charge the to-be-charged device.

12. The off-grid type optical storage and charging power system according to claim 10, characterized in that, The automatic driving mobile energy storage device is also used for charging a to-be-charged device located at the position of the local charging pile according to third charging control information.

13. The off-grid type optical storage and charging power system according to claim 10, characterized in that, The system further comprises at least one transformer substation. The automatic driving mobile energy storage device is used for moving to the position of a target transformer substation according to fourth charging control information, and connecting with a to-be-charged unit in the target transformer substation and charging the to-be-charged unit.

14. The off-grid type optical storage and charging power system according to claim 10, characterized in that, The system further comprises at least one peripheral charging station. The automatic driving mobile energy storage device is used for moving to the position of a target peripheral charging station according to fifth charging control information, and connecting with a to-be-charged pile in the target peripheral charging station and charging the to-be-charged pile, so that the to-be-charged pile stores electric energy.

15. The off-grid type optical storage and charging power system according to claim 14, characterized in that, The automatic driving mobile energy storage device is also used for moving to the position of a target peripheral charging station according to sixth charging control information, and charging an electric device connected with a charging pile in the target peripheral charging station.

16. The off-grid type power charging and transmitting system according to any one of claims 10-15, characterized in that, The system further comprises a cloud server. The cloud server is connected with each of the automatic driving mobile energy storage devices, each local electric device, each electric device in the transformer substations and each electric device in the peripheral charging stations. The cloud server sends first charging control information or second charging control information or third charging control information to the automatic driving mobile energy storage devices based on first electric quantity information and first positions of the automatic driving mobile energy storage devices, second electric quantity information and second positions of the local electric devices, wherein the local electric devices comprise local charging piles, to-be-charged devices connected with the local charging piles and to-be-charged devices at the positions of the local charging piles; The cloud server sends fourth charging control information to each of the automatic driving mobile energy storage devices based on second electric quantity information and second positions of the transformer substations, first electric quantity information and first positions of the automatic driving mobile energy storage devices. The cloud server sends fifth charging control information or sixth charging control information to each of the autonomous mobile energy storage devices based on second power information, second positions of power consumption equipment in each of the surrounding charging stations, first power information and first positions of each of the autonomous mobile energy storage devices, wherein the power consumption equipment in the surrounding charging stations includes surrounding charging piles and to-be-charged equipment connected to the surrounding charging piles.

17. An off-grid power charging and supplying method, wherein, The method is applied to a cloud server and includes the following steps: obtaining first power information, first positions of battery energy storage modules on each autonomous mobile energy storage device, and second power information, second positions of each power consumption equipment, wherein the power consumption equipment includes each local power consumption equipment, each power consumption equipment in each transformer substation, and each surrounding power consumption equipment in each surrounding charging station; determining a target autonomous mobile energy storage device and a target power consumption equipment according to the first power information, the first positions, the second power information, the second positions, and power consumption priorities of each power consumption equipment; planning a path according to the first position of the target autonomous mobile energy storage device and the second position of the target power consumption equipment, determining a target path of the target autonomous mobile energy storage device, so that the target autonomous mobile energy storage device moves to the second position of the target power consumption equipment according to the target path and transmits electric energy to the target power consumption equipment.

18. The off-grid charging method of claim 17, wherein, The method further includes the following steps: determining the target autonomous mobile energy storage device according to the first power information; determining the target power consumption equipment according to the first position of the target autonomous mobile energy storage device, the second power information, the second positions, and the power consumption priorities of each power consumption equipment.

19. The off-grid charging method of claim 18, wherein, The method further includes the following steps: selecting, from the first power information, an autonomous mobile energy storage device corresponding to first power information with the highest power as the target autonomous mobile energy storage device.

20. The off-grid charging method of claim 18, wherein, The method further includes the following steps: determining at least one initial power consumption equipment in each of the power consumption equipment according to distances between the second positions and the first position of the target autonomous mobile energy storage device and a preset distance threshold; determining at least one intermediate power consumption equipment in the at least one initial power consumption equipment according to second power information of each of the initial power consumption equipment and a power threshold; determining the target power consumption equipment according to power consumption priorities of each of the intermediate power consumption equipment.

21. The off-grid power charging and power supply method according to any one of claims 18-20, characterized in that, The method further includes the following steps: According to the second power information of each of the power utilization devices and the power threshold, at least one initial power utilization device is determined from the power utilization devices; According to the distance between the second position of each of the initial power utilization devices and the first position of the target automatic driving mobile energy storage device and a preset distance threshold, at least one intermediate power utilization device is determined from the at least one initial power utilization device; According to the power utilization priority of each of the intermediate power utilization devices, the target power utilization device is determined.

22. The off-grid power charging and power supply method according to any one of claims 17-20, wherein, The power utilization device comprises a second direct-current to direct-current power supply unit and / or a second direct-current to alternating-current power supply unit.

23. The off-grid power charging and power supply method according to any one of claims 17-20, wherein, The power utilization device comprises at least one of the following: a local power utilization device, a power utilization device in each power transformation station, a power utilization device in each peripheral charging station, a household power utilization device, and an outdoor power utilization device. The local power utilization device comprises a local charging pile, a to-be-charged device connected to the local charging pile, and a to-be-charged device at the position of the local charging pile. The power utilization device in the peripheral charging station comprises a peripheral charging pile and a to-be-charged device connected to the peripheral charging pile.

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