Multi-vehicle direct-current mutual charging and coordinated power supply system and energy scheduling method

Abstract

This invention provides a multi-vehicle DC inter-charging collaborative power supply system and energy dispatching method, relating to the field of mobile charging vehicle technology. The system includes: an energy output interface sensing module, an energy input interface sensing module, a communication module, a control module, and an energy storage sensing module. The communication module establishes a communication connection with the access device after the energy input interface sensing module detects that an energy input interface has been connected. The energy storage sensing module senses stored energy data. The control module generates energy input control parameters based on the energy output data and energy storage data sensed by the energy output interface sensing module and sends them to the access device via the communication module. This multi-vehicle DC inter-charging collaborative power supply system and energy dispatching method enables multi-vehicle networking, breaks the energy storage limit of a single vehicle, and ensures continuous power supply in scenarios such as extended maintenance periods, high-load power supply, and power outages in disaster-stricken areas.

Description

Technical Field

[0001] This invention relates to the field of mobile charging vehicle technology, and in particular to a multi-vehicle DC mutual charging and coordinated power supply system and energy dispatching method. Background Technology

[0002] Mobile charging vehicles were developed specifically for the convenient charging of electric vehicles, but their application scenarios are not limited to charging electric vehicles. In addition, they can be used for power supply scenarios such as long-term maintenance, high-load power supply, and power supply in disaster areas without mains power. In these scenarios, it is necessary to ensure a continuous supply of power. The energy storage of a single mobile charging vehicle can be easily depleted, leading to power supply interruption. Summary of the Invention

[0003] One of the objectives of this invention is to provide a multi-vehicle DC mutual charging and collaborative power supply system and energy dispatching method, which enables multi-vehicle networking, breaks the energy storage limit of a single vehicle, and ensures continuous power supply in scenarios such as long-term maintenance, high-load power supply, and disaster areas without mains power.

[0004] This invention provides a multi-vehicle DC mutual charging and coordinated power supply system, comprising: an energy output interface sensing module, an energy input interface sensing module, a communication module, a control module, and an energy storage sensing module; The system includes: an energy output interface sensing module for sensing energy output data; an energy input interface sensing module for sensing whether an energy input interface is connected and the energy input data after connection; a communication module for establishing a communication connection with the connected device after the energy input interface sensing module detects that the energy input interface is connected; an energy storage sensing module for sensing energy storage data; and a control module for generating energy input control parameters based on energy output data and energy storage data and sending them to the connected device through the communication module.

[0005] Preferably, the power input interface includes a DC charging interface.

[0006] Preferably, the multi-vehicle DC mutual charging and coordinated power supply system further includes: a human-machine interaction module, which is electrically connected to the control module; the control module receives and executes control commands input by the user through the human-machine interaction module.

[0007] Preferably, the multi-vehicle DC mutual charging and coordinated power supply system further includes: a direct connection module, which is electrically connected to the control module; the control module directly connects the power input interface and the power output interface through the direct connection module.

[0008] Preferably, the multi-vehicle DC mutual charging and coordinated power supply system further includes: a network number allocation module, used to perform network number allocation operation after the communication module establishes a communication connection with the access device.

[0009] After network power supply is established and the preset operating time is set, the available supply time for each mobile charging vehicle is determined based on the power output data of the first mobile charging vehicle; the location of the nearest energy point is determined, and the travel time is determined based on the location of the nearest energy point and the current location; the mobile power consumption is determined based on the travel time and a pre-configured travel loss table; the charging efficiency of each mobile charging vehicle is determined, and the charging time is determined based on the charging efficiency; by comprehensively analyzing the available supply time, travel time, mobile power consumption, and charging time of each mobile charging vehicle, the minimum number of vehicles required for network power supply is determined; and a reminder message is output when the number of vehicles in the current network is less than the minimum number of vehicles.

[0010] The present invention also provides an energy dispatching method, comprising: The power output data of the sensing power output interface; Sensing electrical energy and storing data; It senses whether the power input interface is connected; When connected, a communication connection is established with the access device through the communication module; Based on power output data and power storage data, power input control parameters are generated and sent to the access device via a communication module.

[0011] Preferably, the power input interface includes a DC charging interface.

[0012] Preferably, the energy dispatching method further includes: The human-computer interaction module receives and executes control commands input by the user.

[0013] Preferably, the energy dispatching method further includes: The power input interface and the power output interface are directly connected via a direct connection module.

[0014] Preferably, the energy dispatching method further includes: After the communication module establishes a communication connection with the access device, the network number allocation operation is performed. After network power supply is established and the preset operating time is set, the available supply time for each mobile charging vehicle is determined based on the power output data of the first mobile charging vehicle; the location of the nearest energy point is determined, and the travel time is determined based on the location of the nearest energy point and the current location; the mobile power consumption is determined based on the travel time and a pre-configured travel loss table; the charging efficiency of each mobile charging vehicle is determined, and the charging time is determined based on the charging efficiency; by comprehensively analyzing the available supply time, travel time, mobile power consumption, and charging time of each mobile charging vehicle, the minimum number of vehicles required for network power supply is determined; and a reminder message is output when the number of vehicles in the current network is less than the minimum number of vehicles.

[0015] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings.

[0016] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of a multi-vehicle DC mutual charging and cooperative power supply system according to an embodiment of the present invention; Figure 2 This is a schematic diagram of an energy dispatching method according to an embodiment of the present invention. Detailed Implementation

[0018] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0019] Example 1: This embodiment of the invention provides a multi-vehicle DC mutual charging and cooperative power supply system, such as... Figure 1 As shown, it includes: power output interface sensing module 1, power input interface sensing module 2, communication module 3, control module 4, and energy storage sensing module 5; The power output interface sensing module is used to sense the power output data of the power output interface; that is, by collecting the detection data of the voltage detection unit and current detection unit configured in the power output interface, the power output data of the power output interface is sensed; the power output data includes: voltage, current, frequency, etc. The power input interface sensing module is used to detect whether the power input interface is connected and the power input data after connection. The detection of whether the power input interface is connected is achieved by triggering a contact sensor configured on one side of the power input interface. That is, when the power input interface is plugged in, the contact sensor embedded on one side of the power input interface will be triggered, and the connection can be detected through the trigger signal of the contact sensor. When the power input interface sensing module detects that the power input interface is connected, it indicates that other mobile charging vehicles are connecting to form a network. At this time, the communication module establishes a communication connection with the access device (mobile charging vehicle). This mainly involves establishing a communication connection with the controller of the access device; if it is another mobile charging vehicle, it establishes a communication connection with the control module of that other mobile charging vehicle. The energy storage sensing module is used to sense energy storage data; that is, by collecting data from the energy management module of the mobile charging vehicle, the energy storage of the mobile charging vehicle is sensed. The sensed energy storage data includes the remaining power of the battery module of the mobile charging vehicle.

[0020] For the first vehicle in the network, namely the mobile charging vehicle that is directly connected to the electrical equipment or the power grid, the control module is used to generate power input control parameters based on power output data and power storage data and send them to the access device through the communication module.

[0021] The power input interface includes a DC charging interface.

[0022] The multi-vehicle DC mutual charging collaborative power supply system in this embodiment is mainly used in power supply scenarios such as long-term maintenance, high-load power supply, and disaster areas without mains power. Relying on the DC mutual charging interface configured on the mobile charging vehicle, multiple mobile charging vehicles are networked together. Under the overall coordination of the control module, multiple mobile charging vehicles can achieve rotation without leaving or switching to alternative power sources, thereby breaking through the energy storage limit of a single mobile charging vehicle and ensuring the continuous supply of power in power supply scenarios such as long-term maintenance, high-load power supply, and disaster areas without mains power.

[0023] The control module is used to generate power input control parameters based on power output data and power storage data, including: When the current in the current output data is zero and the remaining power in the energy storage data is greater than or equal to the preset first power threshold, the power input control parameters representing standby are generated. When the current in the current output data is not zero and the remaining energy in the energy storage data is less than or equal to the preset second energy threshold, the charging voltage is determined by querying the pre-configured charging voltage table based on the remaining energy; and the energy input control parameters representing the output charging voltage are generated. Among them, the first power threshold is less than or equal to the second power threshold.

[0024] Example 2: This embodiment of the invention provides a multi-vehicle DC mutual charging and collaborative power supply system, including: a power output interface sensing module, a power input interface sensing module, a communication module, a control module, an energy storage sensing module, and a human-machine interaction module; The human-computer interaction module is electrically connected to the control module; the control module receives and executes control commands input by the user through the human-computer interaction module.

[0025] The multi-vehicle DC mutual charging and collaborative power supply system in this embodiment, through the configuration of a human-machine interface module, allows users to manually input control commands. When applied to the second mobile charging vehicle and subsequent mobile charging vehicles in a network, the input control commands include: minimum reserve power, output voltage, etc. The minimum reserve power is the amount of power that the mobile charging vehicle needs to retain when outputting power in the network. When the remaining power of the energy storage module drops to the minimum reserve power, it will no longer output power; the user needs to manually input a control command to release the minimum reserve power. The minimum reserve power corresponds to the mobile charging vehicle that uses electric power for propulsion, which also uses the power from its own energy storage module to drive its movement. A minimum reserve power needs to be configured to ensure that it can move after outputting power.

[0026] Example 3: This embodiment of the invention provides a multi-vehicle DC mutual charging and coordinated power supply system, including: a power output interface sensing module, a power input interface sensing module, a communication module, a control module, an energy storage sensing module, a direct connection module, a human-machine interaction module, and a network numbering and allocation module. The direct-connect module is electrically connected to the control module; the control module directly connects the power input interface and the power output interface through the direct-connect module. The direct-connect module includes multiple switching units; the switching units connect the power input interface, power output interface, energy storage module, and conversion module in pairs; the conversion module includes DC-AC conversion units, transformer units, etc. As a corresponding application scenario, when the power output module of the first mobile vehicle outputs DC power, the first mobile vehicle generates power input control parameters indicating the output of a specified charging voltage, and the control module is determined to be directly powered from the outside, the second mobile charging vehicle can be directly powered by closing the switch unit between the power input interface and the power output interface and opening the other switch units. Alternatively, the direct connection module of the second mobile vehicle or even the (N-1)th mobile charging vehicle can be configured in the same way as the first mobile charging vehicle, and the Nth mobile charging vehicle can be directly powered by the Nth mobile charging vehicle. As another corresponding application scenario, when the power output module of the first mobile vehicle outputs AC power, and the first mobile vehicle generates power input control parameters indicating the output of a specified charging voltage (DC), and the control module determines that it is directly powered from the outside, the switching units between the power input interface and the conversion module, and between the power output interface and the conversion module are closed, and the rest are disconnected, and the second mobile charging vehicle directly supplies power; or, the switching units between the power input interface and the power output interface of the direct connection module of the second mobile vehicle and even the (N-1)th mobile charging vehicle are closed, and the rest are disconnected, and the Nth mobile charging vehicle directly supplies power. As another corresponding application scenario, when the power output module of the first mobile vehicle outputs AC power, the first mobile vehicle generates power input control parameters indicating the output of a specified charging voltage (DC) and the control module determines that it is directly powered from the outside, and when charging the energy storage module, the switching units between the power input interface and the conversion module, the power output interface and the conversion module, and the power input interface and the energy storage module are closed, and the rest are disconnected, and the second mobile charging vehicle directly supplies power. Alternatively, the switching units between the power input interface and the power output interface of the direct connection module of the second mobile vehicle and even the (N-1)th mobile charging vehicle are closed, and the rest are disconnected, and the Nth mobile charging vehicle directly supplies power. The network number allocation module is used to perform network number allocation operations after the communication module establishes a communication connection with the access device.

[0027] The multi-vehicle DC mutual charging and collaborative power supply system provided in this embodiment uses a network numbering allocation module to allocate network numbers after the communication module establishes a communication connection with the access device. For example, a mobile charging vehicle that is directly connected to the power-consuming equipment or the power grid is assigned the number 01, and then connected to the previous mobile charging vehicle in sequence with the numbers 02, 03, etc. In this way, through the numbering, when broadcasting control is carried out within the network, each vehicle can identify and execute the control command for itself.

[0028] After network power supply is established and the preset operating time is set, the available supply time for each mobile charging vehicle is determined based on the power output data of the first mobile charging vehicle; the location of the nearest energy point is determined, and the travel time is determined based on the location of the nearest energy point and the current location; the mobile power consumption is determined based on the travel time and a pre-configured travel loss table; the charging efficiency of each mobile charging vehicle is determined, and the charging time is determined based on the charging efficiency; by comprehensively analyzing the available supply time, travel time, mobile power consumption, and charging time of each mobile charging vehicle, the minimum number of vehicles required for network power supply is determined; and a reminder message is output when the number of vehicles in the current network is less than the minimum number of vehicles.

[0029] Example 4: The present invention also provides an energy dispatching method, such as... Figure 2 As shown, it includes: The power output data of the sensing power output interface; Sensing electrical energy and storing data; It senses whether the power input interface is connected; When connected, a communication connection is established with the access device through the communication module; Based on power output data and power storage data, power input control parameters are generated and sent to the access device via a communication module.

[0030] The power input interface includes a DC charging interface.

[0031] To enable manual input of user commands, the energy dispatching method also includes: The human-computer interaction module receives and executes control commands input by the user.

[0032] To enable direct power supply from a mobile charging vehicle connected to the rear, the energy dispatching method also includes: The power input interface and the power output interface are directly connected via a direct connection module.

[0033] The direct-connect module includes multiple switching units; the switching units connect the power input interface, power output interface, energy storage module, and conversion module in pairs; the conversion module includes DC-AC conversion unit, transformer unit, etc. As a corresponding application scenario, when the power output module of the first mobile vehicle outputs DC power, the first mobile vehicle generates power input control parameters indicating the output of a specified charging voltage, and the control module is determined to be directly powered from the outside, the second mobile charging vehicle can be directly powered by closing the switch unit between the power input interface and the power output interface and opening the other switch units. Alternatively, the direct connection module of the second mobile vehicle or even the (N-1)th mobile charging vehicle can be configured in the same way as the first mobile charging vehicle, and the Nth mobile charging vehicle can be directly powered by the Nth mobile charging vehicle. As another corresponding application scenario, when the power output module of the first mobile vehicle outputs AC power, and the first mobile vehicle generates power input control parameters indicating the output of a specified charging voltage (DC), and the control module determines that it is directly powered from the outside, the switching units between the power input interface and the conversion module, and between the power output interface and the conversion module are closed, and the rest are disconnected, and the second mobile charging vehicle directly supplies power; or, the switching units between the power input interface and the power output interface of the direct connection module of the second mobile vehicle and even the (N-1)th mobile charging vehicle are closed, and the rest are disconnected, and the Nth mobile charging vehicle directly supplies power. In another corresponding application scenario, when the power output module of the first mobile vehicle outputs AC power, the first mobile vehicle generates power input control parameters indicating the output of a specified charging voltage (DC), and the control module determines that it is directly powered from the outside, and when charging the energy storage module, the switching units between the power input interface and the conversion module, the power output interface and the conversion module, and the power input interface and the energy storage module are closed, and the rest are disconnected, and the second mobile charging vehicle directly supplies power. Alternatively, the switching units between the power input interface and the power output interface of the direct connection module of the second mobile vehicle and even the (N-1)th mobile charging vehicle are closed, and the rest are disconnected, and the Nth mobile charging vehicle directly supplies power.

[0034] To facilitate determining the order of each mobile charging vehicle after they are connected in a network, the energy scheduling method also includes: After the communication module establishes a communication connection with the access device, the network number allocation operation is performed.

[0035] After the communication module establishes a communication connection with the access device, a network number is assigned. For example, a mobile charging vehicle that is directly connected to the power equipment or the power grid is assigned the number 01, and then connected to the previous mobile charging vehicle in sequence with the numbers 02, 03, etc. In this way, through the numbering, when broadcasting control is carried out within the network, each vehicle can identify and execute the control command for itself.

[0036] After the network is established, the control module of the first mobile charging vehicle counts the output power of each mobile charging vehicle participating in the network, and determines the power demand per unit time based on the monitoring of power output data, thereby determining the remaining supply time; when the remaining supply time is less than or equal to the preset time threshold, a preset reminder message is output; when the output power is exhausted, the backup power of the mobile charging vehicle is called up in the order of the numbers from front to back; when a new mobile charging vehicle is connected to the network, the backup power of the mobile charging vehicle is replenished in the order of the numbers from back to front.

[0037] To ensure continuous power supply, after network power supply has been established and operated for a period of time (any value between 30 minutes and 1 hour), the available supply time for each mobile charging vehicle is determined based on the power output data of the first mobile charging vehicle; the location of the nearest energy point is determined, and the travel time is determined based on the location of the nearest energy point and the current location; the mobile power consumption is determined based on the travel time and a pre-configured travel loss table; the charging efficiency of each mobile charging vehicle is determined, and the charging time is determined based on the charging efficiency; by comprehensively analyzing the available supply time, travel time, mobile power consumption, and charging time of each mobile charging vehicle, the minimum number of vehicles required for network power supply is determined; and a reminder message is output when the current number of vehicles in the network is less than the minimum number of vehicles. The process involves comprehensively analyzing the available power supply time, travel time, energy consumption, and charging time of each mobile charging vehicle to determine the minimum number of vehicles required for network power supply. Based on these parameters, a pre-configured analysis table is consulted to determine the minimum number of vehicles. This table, pre-built by professionals, correlates the available power supply time, travel time, energy consumption, and charging time of each mobile charging vehicle with the minimum number of vehicles. The available power supply time of each mobile vehicle is used in the minimum vehicle count analysis to ensure sufficient power reserves for unexpected power outages after configuration. The location of the nearest energy point is manually entered by staff; the current location can be obtained from the vehicle's onboard positioning device. Furthermore, when calculating the available supply time, the available supply power is based on the remaining power of the energy storage module of the mobile charging vehicle, minus the guaranteed power determined by the mobile power loss to the nearest energy point. In addition, the minimum number of vehicles determined by the analysis table is generally 2N+1, where N is an integer. The construction principle is that, except for the first mobile charging vehicle, the remaining mobile charging vehicles are divided into two groups. One group provides power, and the other group moves to the nearest energy point to charge and then moves back to take over the power supply from the first group.

[0038] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A multi-vehicle DC mutual charging and cooperative power supply system, characterized in that, include: The system includes a power output interface sensing module, a power input interface sensing module, a communication module, a control module, and an energy storage sensing module. The system includes: an energy output interface sensing module for sensing energy output data; an energy input interface sensing module for sensing whether an energy input interface is connected and the energy input data after connection; a communication module for establishing a communication connection with the connected device after the energy input interface sensing module detects that the energy input interface is connected; an energy storage sensing module for sensing energy storage data; and a control module for generating energy input control parameters based on energy output data and energy storage data and sending them to the connected device through the communication module.

2. The multi-vehicle DC mutual charging and coordinated power supply system as described in claim 1, characterized in that, The power input interface includes: DC charging interface.

3. The multi-vehicle DC mutual charging and coordinated power supply system as described in claim 1, characterized in that, Also includes: The human-computer interaction module is electrically connected to the control module. The control module receives and executes control commands input by the user through the human-computer interaction module.

4. The multi-vehicle DC mutual charging and coordinated power supply system as described in claim 1, characterized in that, Also includes: The direct-connect module is electrically connected to the control module. The control module directly connects the power input interface and the power output interface through a direct connection module.

5. The multi-vehicle DC mutual charging and coordinated power supply system as described in claim 1, characterized in that, Also includes: The network number allocation module is used to perform network number allocation operations after the communication module establishes a communication connection with the access device; After the grid power supply is established and the preset operation time is set, the available supply time for each mobile charging vehicle is determined based on the power output data of the first mobile charging vehicle. Determine the location of the nearest energy point, and based on the location of the nearest energy point and the current location, determine the travel time; Based on the travel time and a pre-configured travel loss table, determine the travel power consumption. Determine the charging efficiency of each mobile charging vehicle, and determine the charging time based on the charging efficiency; By comprehensively analyzing the available supply time, travel time, mobile energy consumption, and charging time of each mobile charging vehicle, the minimum number of vehicles required for network power supply is determined; when the current number of vehicles in the network is less than the minimum number of vehicles, a reminder message is output.

6. An energy dispatching method, characterized in that, include: The power output data of the sensing power output interface; Sensing electrical energy and storing data; It senses whether the power input interface is connected; When connected, a communication connection is established with the access device through the communication module; Based on power output data and power storage data, power input control parameters are generated and sent to the access device via a communication module.

7. The energy dispatching method as described in claim 6, characterized in that, The power input interface includes: DC charging interface.

8. The energy dispatching method as described in claim 6, characterized in that, Also includes: The human-computer interaction module receives and executes control commands input by the user.

9. The energy dispatching method as described in claim 6, characterized in that, Also includes: The power input interface and the power output interface are directly connected via a direct connection module.

10. The energy dispatching method as described in claim 6, characterized in that, Also includes: After the communication module establishes a communication connection with the access device, the network number allocation operation is performed. After the grid power supply is established and the preset operation time is set, the available supply time for each mobile charging vehicle is determined based on the power output data of the first mobile charging vehicle. Determine the location of the nearest energy point, and based on the location of the nearest energy point and the current location, determine the travel time; Based on the travel time and a pre-configured travel loss table, determine the travel power consumption. Determine the charging efficiency of each mobile charging vehicle, and determine the charging time based on the charging efficiency; By comprehensively analyzing the available supply time, travel time, mobile energy consumption, and charging time of each mobile charging vehicle, the minimum number of vehicles required for network power supply is determined; when the current number of vehicles in the network is less than the minimum number of vehicles, a reminder message is output.

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