Energy management system and method for battery swap station

Abstract

The present application proposes an energy management system and method for a battery swap station. The system is applied to a mobile battery swap station. The mobile battery swap station includes a mobile battery station and a control platform. The mobile battery station is connected to the control platform via wires. A battery swap battery is provided on the mobile battery station. A battery swap robot and a control room are provided on the control platform. The system is used to coordinate and manage the energy and communication of the mobile battery swap station. The system includes a power supply module, a monitoring module, a transportation device and a communication module. The present application uses a communication device to connect the mobile battery swap station, the transport vehicle and the charging station, respectively monitors the power supply usage of the mobile battery swap station and the power status of the battery swap battery, detects the insufficient power supply energy and the insufficient available battery swap battery in advance, and replenishes them in time, thereby avoiding the situation where vehicles pile up and queue up to wait for the battery swap battery to be charged, and achieves coordination and unity between the vehicles and the battery swap station.

Description

Technical Field

[0001] The present application relates to the technical field of battery swap stations, and in particular to an energy management system and method for a battery swap station. Background Art

[0002] New energy vehicles refer to vehicles that use unconventional automotive fuels as their power source. Among them, pure electric vehicles, as a type of new energy vehicle, have developed rapidly in recent years. With the development and innovation of battery technology and charging and swapping technology, pure electric vehicles are no longer limited to general civilian vehicles or public transportation. More and more commercial vehicles are also beginning to use pure electric drive, such as light trucks, heavy trucks, trailers, etc. Most commercial vehicle work sites are special, and combined with the characteristics of commercial vehicles themselves that need to operate continuously without rest, how commercial vehicles can maintain coordination and unity with swap stations to maximize operating efficiency is an important research direction for energy management of commercial vehicle swap stations.

[0003] At present, most of the battery swap stations for mining trucks are fixed. As the location of mining operations progresses, the distance that mining trucks have to travel to battery swap stations to replace batteries is gradually increasing. Although mining truck drivers can flexibly adjust the timing of battery swaps at battery swap stations based on the relationship between battery power and mileage, battery swap stations cannot grasp the timing of battery swaps for each mining truck in a timely manner, and further cannot control the charging time of the replaced batteries, so there will be a shortage of available batteries, and mining trucks need to wait in line to wait for the batteries to be fully charged before replacing them. In addition, some companies have developed and designed mobile battery swap stations. Although they can effectively reduce the energy waste caused by the increase in the distance of mining trucks, they still have not coordinated the energy consumption of the battery swap stations themselves and the energy management of battery swaps. Summary of the invention

[0004] The present application aims to solve one of the technical problems in the related art at least to some extent.

[0005] In a first aspect, the present application proposes an energy management system for a battery swap station, the system being applied to a mobile battery swap station, the mobile battery swap station comprising a mobile battery station and a control platform, the mobile battery station being connected to the control platform via wires, the mobile battery station being provided with a battery swap battery, the control platform being provided with a battery swap robot and a control room, the system comprising:

[0006] A power supply module, which is arranged on the mobile battery swap station and is used to supply power to the mobile battery station and the control platform;

[0007] A monitoring module, which is connected to the power supply module and the mobile battery swap station respectively, and is used to monitor the energy consumption of the control platform and the power of the battery swapping station on the mobile battery station;

[0008] The transport device transports the replacement battery station to the mobile battery station, and transports the mobile battery station to the charging station to charge the empty batteries when the number of empty batteries on the replacement battery station in the transport device meets a preset condition and the replacement batteries on the replacement battery station in the transport device are fully charged batteries;

[0009] A communication module is used to realize the communication connection between the control platform, the transportation device and the charging station.

[0010] Optionally, the power supply module includes:

[0011] A first power supply part, which is arranged on the mobile battery station and is used to supply power to the battery-swapping robot and the control room;

[0012] The second power supply part is arranged in the control room, the second power supply part is a backup power supply, and the second power supply part supplies power to the control platform when the mobile battery station and the control platform are disconnected.

[0013] Optionally, the monitoring module includes:

[0014] A power supply monitoring part, which is connected to the first power supply part, the second power supply part, the battery swapping robot and the control room respectively, and is used to monitor the energy consumption of the battery swapping robot and the control room during operation;

[0015] A battery replacement monitoring part, which is connected to the mobile battery station, and is used to monitor the power status of the battery replacement battery on the mobile battery station.

[0016] Optionally, the communication module includes a communication device, a cloud server, a station segment server and a visualization system, wherein:

[0017] The communication devices are respectively arranged at the control platform, the transport vehicle and the charging station to connect the control platform, the transport vehicle and the charging station by communication;

[0018] The visualization system is installed on the control platform and the charging station respectively, and is used to display data information;

[0019] The station section server is installed in the control room.

[0020] Optionally, the first power supply part includes a first battery, and the first battery is a rechargeable lithium-ion battery.

[0021] Optionally, the second power supply part includes an uninterruptible UPS power supply and an inverter that are electrically connected. A second battery is provided inside the UPS power supply. The input voltage range of the inverter is 165 - 219V, and the output voltage of the inverter is 380V.

[0022] Optionally, the battery replacement monitoring part includes a voltage detection circuit, a temperature measurement circuit, and a first control box. Among them,

[0023] The mobile battery replacement station is provided with a plurality of battery positions. Each battery position is provided with a set of voltage detection circuit and a set of temperature measurement circuit. The voltage detection circuit is used to detect whether a replacement battery is placed in the battery position and the power information of the placed replacement battery. The temperature measurement circuit is used to detect the temperature of the replacement battery;

[0024] The first control box is installed on the mobile battery replacement station. The first control box is connected to each battery position and is also connected to the control room;

[0025] The first control box receives the electrical signals from the voltage detection circuit and the temperature measurement circuit, converts the electrical signals into data information, and transmits the data signals to the control room.

[0026] Optionally, the power supply monitoring part includes a second control box. The second control box is connected to the second power supply part. The second control box is provided with a switching circuit and an energy consumption detection device. Among them,

[0027] The energy consumption detection device is used to detect the operating energy consumption of the battery replacement robot. When the battery replacement robot is operating underloaded, the energy consumption detection circuit box transmits a signal to the switching circuit, and the switching circuit cuts off the power supply of the battery replacement robot.

[0028] Optionally, the control room is provided with an alarm device. The alarm device is communicatively connected to the station section server. The alarm device includes an indicator light and an alarm bell. When an abnormal situation is detected, the alarm device gives an alarm and records the abnormal data in the station section server.

[0029] A second aspect of the present application proposes a management method applied to the energy management system of any one of the battery replacement stations in the first aspect, including:

[0030] The energy management system of the battery replacement station obtains the number n of available replacement batteries in the mobile battery station through the battery replacement monitoring part, and obtains the average time t for each replacement battery to be replaced and the moving time T of the transportation device from the charging station to the mobile battery replacement station from the cloud server and the station section server. When (n - 1)*t < T is satisfied, the control room sends a transportation instruction to the charging station.

[0031] Beneficial effects of this application:

[0032] The mobile battery swap station, transport vehicle and charging station are connected by communication devices, and the power supply usage of the mobile battery swap station and the power status of the battery swap battery are monitored respectively. Insufficient power supply energy and insufficient available battery swap batteries can be detected in advance for timely replenishment, thereby avoiding the situation where vehicles are piled up and queuing for charging of battery swap batteries, and achieving coordination and unity between vehicles and battery swap stations. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0034] Figure 1 It is a structural schematic diagram of a mobile battery swap station proposed in an embodiment of the present application;

[0035] Figure 2 It is a block diagram of an energy management system for a battery swap station according to an exemplary embodiment of the present application. DETAILED DESCRIPTION

[0036] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0037] Figure 1 It is a structural schematic diagram of a mobile battery swap station according to an exemplary embodiment of the present application. First, the mobile battery swap station is described in detail. The battery swap station is used to provide battery swap services for electric mining trucks used in mining operations.

[0038] The mobile battery swap station consists of two parts, including a mobile battery station and a control platform. The mobile battery station is connected to the control platform through wires. The mobile battery station is equipped with a battery swap battery, which is the battery of the mining truck. The control platform is equipped with a battery swap robot and a control room. The battery swap robot removes the dead battery from the mining truck and places it on the mobile battery station, and then grabs a fully charged battery from the mobile battery station and installs it on the mining truck. The control room is responsible for monitoring and controlling the battery swap process. The mobile battery swap station is powered by DC batteries.

[0039] In addition, the location of the mobile battery swap station changes according to the progress of the operation. After each change of the location, the time for the battery swap station to travel back and forth to the charging station also changes accordingly. In order to ensure that the progress of the project does not stagnate, the mine truck must have a sufficient number of fully charged battery swap batteries every time it comes to the battery swap station to avoid the situation where the mine trucks have to queue up to wait for battery swaps.

[0040] Figure 2 is a block diagram of an energy management system for a battery swap station according to an exemplary embodiment of the present application, such as Figure 2 As shown, the energy management system of the battery swap station includes a power supply module, a monitoring module, a transportation device and a communication module. Each module or device is described in detail below.

[0041] Specifically, the power supply module includes a first power supply part and a second power supply part. Figure 1 and Figure 2 As shown, the first power supply part is arranged on the mobile battery station, and the first power supply part is used to supply power to the battery exchange robot and the control room. The first power supply part includes a first battery, and the first battery is a rechargeable lithium-ion battery.

[0042] In a possible embodiment, the first power supply battery has an operating voltage range of 165-219V and an operating temperature range of -40-85°C.

[0043] like Figure 1 and Figure 2 As shown, the second power supply part is arranged in the control room, and the second power supply part includes an electrically connected uninterruptible UPS power supply and an inverter. A second battery is arranged in the UPS power supply, and the input voltage range of the inverter is 165-219V, and the output voltage of the inverter is 380V. When the mobile battery swap station is working normally, the first power supply part and the second power supply part are electrically connected, and the first battery of the first power supply part outputs 380V AC power through the inverter, and the output AC power is used to operate the battery swap robot and the equipment in the control room.

[0044] In addition, the second power supply part is a backup power supply. The second power supply part supplies power to the control platform when the mobile battery station and the control platform are disconnected, that is, when the replacement batteries of the mobile battery station are all empty batteries and a new mobile battery station needs to be replaced, or when the first power supply part is accidentally powered off due to a fault.

[0045] Since the power supply of the mobile battery swap station itself and the number of fully charged battery swap batteries in the mobile battery station are the key to coordinated energy management, the monitoring module is explained in detail.

[0046] like Figure 1 and Figure 2As shown, the monitoring module includes a power supply monitoring part and a battery swapping monitoring part. Among them, the power supply monitoring part is connected to the first power supply part, the second power supply part, the battery swapping robot, and the control room. The power supply monitoring part is used to monitor the energy consumption during the operation of the battery swapping robot and the control room. The power supply monitoring part includes a second control box, which is connected to the second power supply part. The second control box is provided with a switching circuit and an energy consumption detection device. Among them, the energy consumption detection device is used to detect the operating energy consumption of the battery swapping robot. When the battery swapping robot is operating underloaded, the energy consumption detection circuit box transmits a signal to the switching circuit, and the switching circuit cuts off the power supply to the battery swapping robot.

[0047] The battery swapping monitoring part is connected to the mobile battery station, and the battery swapping monitoring part is used to monitor the power status of the battery to be swapped on the mobile battery station.

[0048] Specifically, the battery swapping monitoring part includes a voltage detection circuit, a temperature measurement circuit, and a first control box. Among them,

[0049] The mobile battery swapping station is provided with multiple battery positions, and each battery position is provided with a set of voltage detection circuits and a set of temperature measurement circuits. The voltage detection circuit is used to detect whether a battery to be swapped is placed in the battery position and the power information of the placed battery to be swapped. The temperature measurement circuit is used to detect the temperature of the battery to be swapped; the first control box is installed on the mobile battery swapping station, and the first control box is connected to each battery position and is also connected to the control room; the first control box receives the electrical signals of the voltage detection circuit and the temperature measurement circuit, converts the electrical signals into data information, and transmits the data signal to the control room.

[0050] As Figure 1 and Figure 2 shown, the transportation device includes a transport vehicle and a replacement battery station. Among them, the replacement battery station is exactly the same as the mobile battery station. When the number of empty batteries on the mobile battery station meets the preset condition and the batteries to be swapped on the replacement battery station in the transportation device are fully charged batteries, the transport vehicle in the transportation device transports the replacement battery station to the mobile battery swapping station and transports the mobile battery station to the charging station to charge the empty batteries.

[0051] Specifically, the energy management system of the battery swapping station obtains the available number n of batteries to be swapped on the mobile battery station through the battery swapping monitoring part, and obtains the average replacement time t of each battery to be swapped and the moving time T of the transportation device from the charging station to the mobile battery swapping station from the cloud server and the station section server. When (n - 1)*t < T is satisfied, the control room sends a transportation instruction to the charging station.

[0052] In a possible embodiment, according to the mobile battery station, a total of nine battery positions are set, and seven of the battery positions are equipped with fully charged batteries to be swapped. After all seven fully charged batteries are swapped onto the mining truck, the removed empty batteries need to be transported back to the charging station for charging.

[0053] As Figure 1 and Figure 2 As shown, the communication module includes a communication device, a cloud server, a station section server and a visualization system, wherein the communication devices are respectively arranged at the control platform, the transport vehicle and the charging station to connect the control platform, the transport vehicle and the charging station; the visualization system is respectively installed on the control platform and the charging station to display data information; the station section server is installed in the control room.

[0054] In addition, the control room in the embodiment of the present application is provided with an alarm device, which is communicatively connected to the station section server. The alarm device includes an indicator light and an alarm bell. When an abnormal situation is detected, the alarm device alarms and records the abnormal data on the station section server.

[0055] The embodiment of the present application communicates with the mobile battery swap station, transport vehicle and charging station through a communication device, respectively monitors the power usage of the mobile battery swap station and the power status of the battery swap battery, and detects insufficient power supply energy and insufficient available battery swap batteries in advance for timely replenishment, thereby avoiding the situation where vehicles are piled up and queued waiting for the battery swap battery to be charged, and achieving coordination and unity between the vehicles and the battery swap station.

[0056] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0057] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0058] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0059] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0060] In the present application, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0061] Although the above embodiments have been shown and described, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present application. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present application.

Claims

1. An energy management system for a battery swap station, characterized in that: The system is applied to a mobile battery swap station, which includes a mobile battery station and a control platform. The mobile battery station is connected to the control platform through wires. The mobile battery station is provided with a battery swap battery. The control platform is provided with a battery swap robot and a control room. The system includes: A power supply module, which is arranged on the mobile battery swap station and is used to supply power to the mobile battery station and the control platform; A monitoring module, which is connected to the power supply module and the mobile battery swap station respectively, and is used to monitor the energy consumption of the control platform and the power of the battery swapping station on the mobile battery station; The transport device transports the battery replacement station to the mobile battery replacement station, and transports the mobile battery replacement station to the charging station to charge the empty batteries when the number of empty batteries on the mobile battery replacement station meets a preset condition and the batteries on the mobile battery replacement station in the transport device are fully charged. A communication module, the communication module is used to realize the communication connection between the control platform, the transportation device and the charging station, and to display monitoring data; The power supply module comprises: A first power supply part, which is arranged on the mobile battery station and is used to supply power to the battery-swapping robot and the control room; A second power supply part, the second power supply part is arranged in the control room, the second power supply part is a backup power supply, and the second power supply part supplies power to the control platform when the mobile battery station and the control platform are disconnected; The monitoring module comprises: A power supply monitoring part, which is connected to the first power supply part, the second power supply part, the battery swapping robot and the control room respectively, and is used to monitor the energy consumption of the battery swapping robot and the control room during operation; A battery replacement monitoring part, which is connected to the mobile battery station and is used to monitor the power status of the battery replacement battery on the mobile battery station; The communication module includes a communication device, a cloud server, a station segment server and a visualization system, wherein: The communication devices are respectively arranged at the control platform, the transport vehicle and the charging station to connect the control platform, the transport vehicle and the charging station by communication; The visualization system is installed on the control platform and the charging station respectively, and is used to display data information; The station section server is installed in the control room.

2. The energy management system for a battery swap station according to claim 1, characterized in that: The first power supply part includes a first battery, which is a rechargeable lithium-ion battery.

3. The energy management system for a battery swap station according to claim 1, characterized in that: The second power supply part includes an electrically connected uninterruptible UPS power supply and an inverter. The UPS power supply is provided with a second battery. The input voltage range of the inverter is 165-219V, and the output voltage of the inverter is 380V.

4. The energy management system for a battery swap station according to claim 1, characterized in that: The battery replacement monitoring part includes a voltage detection circuit, a temperature measurement circuit and a first control box, wherein: The mobile battery station is provided with a plurality of battery positions, and each battery position is provided with a set of voltage detection circuits and a set of temperature measurement circuits. The voltage detection circuits are used to detect whether a replacement battery is placed in the battery position and the power information of the placed replacement battery, and the temperature measurement circuits are used to detect the temperature of the replacement battery; The first control box is installed on the mobile battery station. The first control box is connected to each battery position and is also connected to the control room; The first control box receives the electrical signals from the voltage detection circuits and the temperature measurement circuits, converts the electrical signals into data information, and transmits the data information to the control room.

5. The energy management system for battery swap stations according to claim 1, characterized in that: The power supply monitoring part includes a second control box. The second control box is connected to the second power supply part. The second control box is provided with a switching circuit and an energy consumption detection device. Among them, The energy consumption detection device is used to detect the running energy consumption of the battery replacement robot. When the battery replacement robot is running underloaded, the energy consumption detection circuit box transmits a signal to the switching circuit, and the switching circuit cuts off the power supply of the battery replacement robot.

6. The energy management system for battery swap stations according to claim 1, characterized in that: The control room is provided with an alarm device. The alarm device is communicatively connected to the station section server. The alarm device includes an indicator light and an alarm bell. When an abnormal situation is detected, the alarm device gives an alarm and records the abnormal data in the station section server.

7. A management method applied to the energy management system of a battery swap station according to any one of claims 1 to 6, characterized in that: Including: The energy management system of the battery replacement station obtains the available number n of replacement batteries of the mobile battery station through the battery replacement monitoring part, and obtains the average time t for each replacement battery to be replaced and the moving time T of the transportation device from the charging station to the mobile battery replacement station from the cloud server and the station section server. When (n - 1)*t < T is satisfied, the control room sends a transportation instruction to the charging station.

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