CN115817250B - Tramcar ground charging control method, device, equipment and storage medium - Google Patents
Tramcar ground charging control method, device, equipment and storage medium Download PDFInfo
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- CN115817250B CN115817250B CN202310133040.2A CN202310133040A CN115817250B CN 115817250 B CN115817250 B CN 115817250B CN 202310133040 A CN202310133040 A CN 202310133040A CN 115817250 B CN115817250 B CN 115817250B
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
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Abstract
The utility model discloses a tramcar ground charging control method, a device, equipment and a storage medium, wherein the method comprises the steps of acquiring state information before the tramcar enters a station, wherein the state information comprises a vehicle number, an uplink and downlink direction, an entering speed, a vehicle-mounted energy storage module state and whether a charging signal is required, and abnormal states of the vehicle-mounted energy storage module comprise a module overtemperature warning, a charging current overtemperature warning, a single overvoltage fault, a module overtemperature fault, a module fuse state, a module contactor state, a total current overtemperature fault and a total voltage overtemperature fault; when charging is needed, the self-adaptive charging control of the vehicle-mounted energy storage module is carried out according to the state of the vehicle-mounted energy storage module. The utility model can acquire the working state of each vehicle-mounted energy storage module in real time, and perform self-adaptive charging control according to the working state, thereby effectively avoiding the overcharge phenomenon caused by module faults.
Description
Technical Field
The utility model belongs to the technical field of tram charging control, and particularly relates to a tram ground charging control method, device and equipment and a storage medium.
Background
The energy storage type tramcar charging device is a relatively perfect charging system, the charging device can be arranged on a positive line and a vehicle section, and after the tramcar is detected to be in a station by the vehicle detection device, the charging device is contacted with a lifting pantograph of the tramcar through a contact net connected with the charging device, so that the charging of the vehicle-mounted energy storage device in the tramcar is realized. The system is firstly charged to a voltage threshold set by the vehicle-mounted energy storage in a constant-current charging mode in the prior art, and then the constant-voltage charging mode is carried out after the voltage threshold is reached, and when an outbound signal or the charging time is detected to be full, the device is normally locked to stop charging. The charging control mode adopting blind charging has the following defects:
the charging system can not acquire the state of the internal module of the vehicle-mounted energy storage device at the first time when entering a station, and can only determine the charging state by detecting the pressure difference between the terminal voltage of the vehicle-mounted energy storage device and the output voltage of the charging device, so that the overcharge phenomenon of the internal module is easy to occur, and the vehicle-mounted energy storage device is damaged; on the other hand, under the blind charging mechanism, the state (such as a fault state) of the internal module cannot be mastered in real time, so that the charging time of the tramcar entering the station can be greatly prolonged, and the real-time management cannot be realized, thereby increasing the operation cost.
The utility model patent CN215154055U discloses an energy storage type tramcar charging device adopting vehicle-to-ground communication and a tramcar, which mainly realize remote information transmission of the tramcar and the charging control system through a wireless communication system, a charging control system in communication connection with the wireless communication system and a vehicle-mounted energy storage device, and can charge the vehicle-mounted energy storage device with large current by utilizing short stop time of the tramcar to stop, thereby improving the accuracy of information transmission and avoiding the impact of overlarge charging current on the energy storage device of the tramcar. The device and the method only solve the problem of long-distance information transmission between the ground charging device of the tramcar and the vehicle-mounted energy storage device through the wireless communication system, but do not mention how the ground charging device adaptively adjusts the charging method according to the states of the vehicle and the energy storage capacitor, so that intelligent charging control is realized.
Disclosure of Invention
The utility model aims to provide a tramcar ground charging control method, a tramcar ground charging control device, tramcar ground charging control equipment and a tramcar ground charging control storage medium, and aims to solve the problem that the charging process cannot be adaptively adjusted according to states of a vehicle and an energy storage capacitor in the traditional method, and intelligent charging control cannot be achieved.
The utility model solves the technical problems by the following technical scheme: a tramcar ground charging control method comprises the following steps:
acquiring state information before the tramcar enters a station, wherein the state information comprises a vehicle number, an uplink and downlink direction, an entering speed, a vehicle-mounted energy storage module state and whether charging signals are needed, the vehicle-mounted energy storage module state comprises a normal state and an abnormal state, and the abnormal state comprises a module overtemperature warning, a charging current overtemperature warning, a single overvoltage fault, a module overtemperature fault, a module fuse state, a module contactor state and a total current overtemperature fault and a total voltage overtemperature fault of all the vehicle-mounted energy storage modules;
when charging is needed, the self-adaptive charging control of the vehicle-mounted energy storage module is carried out according to the state of the vehicle-mounted energy storage module.
Further, when the state of the vehicle-mounted energy storage module is a module overtemperature warning and/or a charging current overtemperature warning, the charging current of the corresponding vehicle-mounted energy storage module is reduced;
when the state of the vehicle-mounted energy storage module is one or more of a single overvoltage fault, a module overtemperature fault, a total current overhigh alarm fault and a total voltage overhigh fault, the charging of the corresponding vehicle-mounted energy storage module or all the vehicle-mounted energy storage modules is forbidden;
and when the state of the vehicle-mounted energy storage module is the module overtemperature fault and a reset message is acquired, charging and resetting control is carried out on the corresponding vehicle-mounted energy storage module.
Further, when all the vehicle-mounted energy storage modules are normal, charging each vehicle-mounted energy storage module according to a preset total charging current;
when one or more vehicle-mounted energy storage modules are withdrawn from operation, current-limiting charging is carried out according to the capacity of each vehicle-mounted energy storage module and the preset total charging current;
and when all the vehicle-mounted energy storage modules fail, stopping charging of all the vehicle-mounted energy storage modules.
Further, when the module fuse state or the module contactor state of a certain vehicle-mounted energy storage module is in an off state, the vehicle-mounted energy storage module is taken out of operation.
Further, the charging control adopts a double closed-loop control strategy of a voltage outer loop and a current inner loop.
Based on the same conception, the utility model also provides a tramcar ground charging control device, which comprises:
the system comprises an acquisition unit, a control unit and a control unit, wherein the acquisition unit is in communication connection with a tram and is configured to acquire state information before the tram enters a station, wherein the state information comprises a vehicle number, an ascending and descending direction, an entering speed, a vehicle-mounted energy storage module state and whether a charging signal is needed, the vehicle-mounted energy storage module state comprises a normal state and an abnormal state, and the abnormal state comprises a module overtemperature warning, a charging current overtemperature warning, a single overvoltage fault, a module overtemperature fault, a module fuse state, a module contactor state and a total current overtemperature fault and a total voltage overtemperature fault of all vehicle-mounted energy storage modules;
and the charging control and execution unit is configured to perform self-adaptive charging control on the vehicle-mounted energy storage module according to the state of the vehicle-mounted energy storage module when charging is required.
Further, the acquisition unit is in communication connection with the tram through a train-ground communication device; the ground communication device comprises a sending module and a receiving module which are in wireless communication connection, wherein the sending module is arranged at a vehicle end, and the receiving module is arranged at a ground end.
Further, the sending module is in communication connection with the tram through a CANopen communication protocol, and the receiving module is in communication connection with the acquisition unit through RS 485.
Based on the same idea, the present utility model provides an electronic device comprising:
a memory for storing a computer program;
and the processor is used for realizing the tramcar ground charging control method when executing the computer program.
Based on the same idea, the present utility model provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements a tram ground charging control method as described above.
Advantageous effects
Compared with the prior art, the utility model has the advantages that:
the utility model can acquire the working state of each vehicle-mounted energy storage module of the tramcar in real time, and carry out self-adaptive charging control according to the working state, thereby effectively avoiding the phenomenon of overcharging caused by the failure of part of the modules and reducing the damage to the vehicle-mounted energy storage modules; meanwhile, the charging time of the tramcar entering the station can be greatly prolonged, real-time management is achieved, and the operation cost is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawing in the description below is only one embodiment of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of vehicle-to-ground communication based on an ad hoc network in an embodiment of the present utility model;
fig. 2 is a flowchart of a tram ground charging control method in an embodiment of the utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made more apparent and fully by reference to the accompanying drawings, in which it is shown, however, only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The technical scheme of the present application is described in detail below with specific examples. The following embodiments may be combined with each other, and some embodiments may not be repeated for the same or similar concepts or processes.
The tramcar ground charging control method and the tramcar ground charging control device provided by the embodiment of the utility model are based on the vehicle-ground communication, and can be divided into the vehicle-ground communication based on the ad hoc network and the vehicle-ground communication based on the existing tramcar communication signal network according to the mode of the communication network.
(1) Vehicle-ground communication scheme based on ad hoc network
The application range is as follows: the method is suitable for engineering application scenes in which no basic communication condition or basic communication condition is inconvenient to access the tramcar ground charging control device.
The networking mode is as follows: the tramcar ground charging control device is connected with the tramcar through the car ground communication device, wherein the car ground communication device comprises a sending module and a ground receiving module, the sending module is arranged at a vehicle end, and the receiving module is arranged at a ground end, as shown in fig. 1. The transmitting module acquires state information before the tramcar enters the station from the vehicle electrical cabinet in a CANopen communication mode, such as vehicle-mounted energy storage module voltage, abnormal state of the vehicle-mounted energy storage module, vehicle position information and the like, and transmits the state information to the receiving module in a high-efficiency linked wireless transmission mode, and the receiving module transmits the state information to the tramcar ground charging control device through RS 485. Based on the information of vehicle-ground communication, intelligent charging control is realized.
(2) Train-ground communication scheme based on existing tramcar communication signal network
The application range is as follows: the method is suitable for engineering scenes with the communication condition of the ground of the tram foundation.
The composition mode is as follows: the existing tramcar communication signal network, such as LTE technology networking, has the advantages of high bandwidth, high speed, wide coverage and the like, and in the mode, only the vehicle-mounted transmitting end and the ground receiving end of the vehicle-to-ground communication device are required to be used as nodes in the network.
The tramcar ground charging control method and the tramcar ground charging control device are compatible with charging modes containing vehicle-ground communication and not containing vehicle-ground communication information, so that safe and reliable charging can be realized according to the control logic of the tramcar ground charging control method under the condition that the vehicle-ground communication fails.
As shown in fig. 2, the method for controlling the ground charge of the tram provided by the utility model comprises the following steps:
step 1: acquisition of state information
Before the tram arrives at a station, the tram sends state information of the tram to the tram ground charging control device through the train-ground communication device, namely the tram ground charging control device acquires the state information before the tram arrives at the station.
The state information comprises a vehicle number, an uplink and downlink direction, an inbound speed, a vehicle-mounted energy storage module state and whether charging signals are needed, the vehicle-mounted energy storage module state comprises a normal state and an abnormal state (or abnormal codes, different abnormal codes represent different abnormal states), and the abnormal state comprises a module overtemperature warning, a charging current overtemperature warning, a single overvoltage fault, a module overtemperature fault, a module fuse state, a module contactor state and a total current overtemperature fault and a total voltage overtemperature fault of all the vehicle-mounted energy storage modules.
When a tramcar enters a station, a vehicle entering and exiting position detection module detects the position of the tramcar entering and exiting the station, and determines the vehicle number and the up-down direction identification of the tramcar according to the detection information; the incoming speed, the state of the vehicle-mounted energy storage module and whether a charging signal is needed are transmitted to the tramcar ground charging control device through the car ground communication device.
In this embodiment, the tramcar includes three vehicle-mounted supercapacitor modules (i.e., three vehicle-mounted energy storage modules), namely, a first vehicle-mounted supercapacitor module mc1_ess, a second vehicle-mounted supercapacitor module mc2_ess and a third vehicle-mounted supercapacitor module tp_ess, wherein the capacity of the first vehicle-mounted supercapacitor module mc1_ess is the same as the capacity of the second vehicle-mounted supercapacitor module mc2_ess, and the capacity of the third vehicle-mounted supercapacitor module tp_ess is half of the capacity of the first vehicle-mounted supercapacitor module mc1_ess or the second vehicle-mounted supercapacitor module mc2_ess. The module overtemperature warning, the charging current overtemperature warning, the single overvoltage fault, the module overtemperature fault, the module fuse state and the module contactor state are abnormal states of a single vehicle-mounted super capacitor module, the total current overtemperature fault and the total voltage overtemperature fault are abnormal states of three vehicle-mounted super capacitor modules, and the total current or the total voltage is bus current or voltage after the three vehicle-mounted super capacitor modules are connected in parallel. The super capacitor single bodies are connected in series and parallel to form a single vehicle-mounted super capacitor module.
It is possible to determine whether the tram stops at the corresponding station based on the arrival speed of the tram, and if the arrival speed is greater than the set speed, it is indicated that the tram does not stop at the station, and the ground charging control of the station is not required. Not all the vehicle-mounted energy storage modules of the tramcar need to be charged at each platform, so that whether the corresponding platform needs to be charged or not can be judged according to whether a charging signal is needed, for example, the electric quantity of each vehicle-mounted energy storage module is sufficient or the electric quantity of each vehicle-mounted energy storage module can enable the tramcar to reach a garage, the corresponding platform does not need to charge each vehicle-mounted energy storage module, and a ground charging control device of the tramcar does not need to obtain the charging signal.
Step 2: adaptive charge control
When the corresponding platform needs to be charged, the self-adaptive charging control of each vehicle-mounted energy storage module is carried out according to the state of the vehicle-mounted energy storage module. The adaptive charge control includes adjusting a charge parameter (e.g., adjusting a charge current), charge mode control, starting charge, stopping charge, the charge modes including a constant current mode, a constant voltage mode, and a constant power mode.
In one embodiment of the present utility model, as shown in table 1, when the state of the vehicle-mounted energy storage module is a module overtemperature warning and/or a charging current overtemperature warning, the charging current of the corresponding vehicle-mounted energy storage module is reduced;
when the state of the vehicle-mounted energy storage module is one or more of a single overvoltage fault, a module overtemperature fault, a total current overtemperature fault and a total voltage overtemperature fault, the charging of the corresponding vehicle-mounted energy storage module or all the vehicle-mounted energy storage modules is forbidden;
and when the state of the vehicle-mounted energy storage module is the module overtemperature fault and a reset message is acquired, charging and resetting control is carried out on the corresponding vehicle-mounted energy storage module.
TABLE 1 charging control when local failure occurs in vehicle-mounted energy storage module
In one specific embodiment of the utility model, when all the vehicle-mounted energy storage modules are normal, each vehicle-mounted energy storage module is charged according to a preset total charging current;
when one or more vehicle-mounted energy storage modules are withdrawn from operation, current-limiting charging is carried out according to the capacity of each vehicle-mounted energy storage module and the preset total charging current;
and when all the vehicle-mounted energy storage modules fail, stopping charging of all the vehicle-mounted energy storage modules.
For example, the capacity of the first vehicle-mounted supercapacitor module MC1_ess is the same as the capacity of the second vehicle-mounted supercapacitor module MC2_ess, and the capacity of the third vehicle-mounted supercapacitor module tp_ess is half of the capacity of the first vehicle-mounted supercapacitor module MC1_ess or the second vehicle-mounted supercapacitor module MC2_ess, so that the charging current should not be reduced by a multiple during the current limiting charging control, but the current limiting should be performed according to the capacity of the vehicle-mounted supercapacitor module that is out of operation.
In one specific embodiment of the present utility model, the charging control includes a voltage outer loop control, a current inner loop control and a pulse generation control, where the voltage outer loop is a dc voltage control loop, and is mainly used for stabilizing the output side voltage of the tramcar ground charging control device, and outputting a current command (i.e. charging current) for constant current charging; the inner ring is a current ring and mainly aims to track a current instruction output by the voltage outer ring so as to realize quick current control; the pulse generation mainly generates IGBT pulse signals to realize the control of the switching of the power module IGBT of the tramcar ground charging control device. The charging control of the embodiment adopts double-loop control of a voltage outer loop and a current inner loop, and the specific control process is as follows:
acquiring a real-time charging voltage, wherein when the real-time charging voltage is lower than a preset charging voltage, the voltage outer loop control is active, and a constant current charging current instruction is generated according to the difference between the real-time charging voltage and the preset charging voltage;
and acquiring real-time charging current, wherein when the real-time charging current is unequal to the current instruction, current inner loop control is enabled, and an IGBT pulse signal is generated according to the real-time charging current and the current instruction, so that the real-time charging current tracks the current instruction.
When the vehicle-mounted energy storage module reaches the charging target voltage or constant voltage charging time, stopping charging, and enabling the tramcar ground charging control device to enter a hot standby state; when the tramcar outbound signal is not detected and the charging target voltage or constant voltage charging time is not reached, judging whether the tramcar ground charging control device fails, if so, tripping a main contactor in the tramcar ground charging control device under the charging working condition, and enabling the device to enter a stop state; if the tramcar ground charging control device receives the reset message of the vehicle-mounted transmitting module, a reset charging signal is generated, and the device is restarted.
Based on the ground communication device, the state information of the vehicle and the vehicle-mounted energy storage module is transmitted to the ground charge control device of the ground tramcar in real time before the vehicle enters the station, and the ground charge control device of the ground tramcar adaptively adjusts charge control strategies and charge parameters according to the states of the vehicle and the vehicle-mounted energy storage module to realize intelligent charge control, namely to realize intelligent start-stop charge control; the vehicle-mounted energy storage module is protected, and the charging safety is guaranteed; the electric quantity condition of the vehicle-mounted energy storage module is accurately mastered while the energy-saving requirement is met, the effect of the residual electric quantity is exerted to the greatest extent, the charging times are reduced, the energy-saving target is realized, and the service lives of the vehicle-mounted energy storage module and the tramcar ground charging control device are prolonged.
The vehicle-ground communication method provided by the utility model is applicable to two network modes (vehicle-ground communication based on an ad hoc network and vehicle-ground communication based on the existing tramcar communication signal network), and the charging control method can be compatible with a charging mode comprising vehicle-ground communication and a charging mode not comprising vehicle-ground communication information at the same time, so that the vehicle-ground communication can be reliably and safely charged according to control logic under the condition of failure, the damage to the vehicle-mounted energy storage module caused by 'blind charging' is effectively avoided, the operation cost of a traction power supply system is reduced, the working state of the vehicle-mounted energy storage module can be obtained in real time, the real-time charging management is realized, and the intelligent charging control is realized.
According to the utility model, when each vehicle-mounted energy storage module is abnormal, the method is divided into three types of reducing charging current, prohibiting charging, resetting and restarting charging according to abnormal conditions, and the three types are referred to, and factors such as fault types which can occur to each module, module capacity proportion and the like are comprehensively considered, so that a self-adaptive charging control method is formulated, and the method can realize real-time control of a charging process, thereby achieving intelligent charging of each vehicle-mounted energy storage module.
Based on the same inventive concept, the utility model also provides a tramcar ground charging control device which comprises an acquisition unit, a charging control unit and an execution unit.
The system comprises an acquisition unit which is in communication connection with a tramcar and is configured to acquire state information before the tramcar enters a station, wherein the state information comprises a vehicle number, an ascending and descending direction, an entering speed, a vehicle-mounted energy storage module state and whether charging signals are needed, the vehicle-mounted energy storage module state comprises a normal state and an abnormal state, and the abnormal state comprises a module overtemperature warning, a charging current overtemperature warning, a single overvoltage fault, a module overtemperature fault, a module fuse state, a module contactor state and a total current overtemperature fault and a total voltage overtemperature fault of all the vehicle-mounted energy storage modules.
And the charging control and execution unit is configured to perform self-adaptive charging control on the vehicle-mounted energy storage module according to the state of the vehicle-mounted energy storage module when charging is required.
As shown in fig. 1, the acquisition unit is in communication connection with the tram through the train-ground communication device; the ground communication device comprises a sending module and a receiving module which are in wireless communication connection, wherein the sending module is arranged at a vehicle end, and the receiving module is arranged at a ground end. The transmitting module is in communication connection with the tramcar through a CANopen communication protocol, and the receiving module is in communication connection with the acquisition unit through RS 485.
The tramcar ground charging control device is connected with an alternating current power grid or a direct current power grid to provide a direct current charging function for the energy storage tramcar; energy storage type tramcar: the energy storage power supply is electrically driven, and the energy storage power supply is a rail traffic mode of medium and low traffic running along a rail; vehicle-to-ground communication: and the data interaction between the vehicle-mounted system and the ground system is realized by using a communication technology.
The foregoing disclosure is merely illustrative of specific embodiments of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art will readily recognize that changes and modifications are possible within the scope of the present utility model.
Claims (8)
1. The tramcar ground charging control method is characterized by comprising the following steps of:
acquiring state information before the tramcar enters a station, wherein the state information comprises a vehicle number, an uplink and downlink direction, an entering speed, a vehicle-mounted energy storage module state and whether charging signals are needed, the vehicle-mounted energy storage module state comprises a normal state and an abnormal state, and the abnormal state comprises a module overtemperature warning, a charging current overtemperature warning, a single overvoltage fault, a module overtemperature fault, a module fuse state, a module contactor state and a total current overtemperature fault and a total voltage overtemperature fault of all the vehicle-mounted energy storage modules;
when needs charge, carry out the self-adaptation charge control of on-vehicle energy storage module according to on-vehicle energy storage module state, specifically include:
when the state of the vehicle-mounted energy storage module is a module overtemperature warning and/or a charging current overtemperature warning, reducing the charging current of the corresponding vehicle-mounted energy storage module;
when the state of the vehicle-mounted energy storage module is one or more of a single overvoltage fault, a module overtemperature fault, a total current overhigh fault and a total voltage overhigh fault, the charging of the corresponding vehicle-mounted energy storage module or all the vehicle-mounted energy storage modules is forbidden;
when the state of the vehicle-mounted energy storage module is a module overtemperature fault and a reset message is acquired, charging and resetting control is carried out on the corresponding vehicle-mounted energy storage module;
when all the vehicle-mounted energy storage modules are normal, charging each vehicle-mounted energy storage module according to a preset total charging current;
when one or more vehicle-mounted energy storage modules are withdrawn from operation, current-limiting charging is carried out according to the capacity of each vehicle-mounted energy storage module and the preset total charging current;
and when all the vehicle-mounted energy storage modules fail, stopping charging of all the vehicle-mounted energy storage modules.
2. The tram ground charging control method according to claim 1, characterized in that: when the state of the module fuse or the state of the module contactor of a certain vehicle-mounted energy storage module is in an off state, the vehicle-mounted energy storage module is taken out of operation.
3. The tram ground charging control method according to any one of claims 1-2, characterized in that: the charging control adopts a double closed-loop control strategy of a voltage outer loop and a current inner loop.
4. A tram ground charge control device, characterized in that the charge control device comprises:
the system comprises an acquisition unit, a control unit and a control unit, wherein the acquisition unit is in communication connection with a tram and is configured to acquire state information before the tram enters a station, wherein the state information comprises a vehicle number, an ascending and descending direction, an entering speed, a vehicle-mounted energy storage module state and whether a charging signal is needed, the vehicle-mounted energy storage module state comprises a normal state and an abnormal state, and the abnormal state comprises a module overtemperature warning, a charging current overtemperature warning, a single overvoltage fault, a module overtemperature fault, a module fuse state, a module contactor state and a total current overtemperature fault and a total voltage overtemperature fault of all vehicle-mounted energy storage modules;
the charging control and execution unit is configured to perform self-adaptive charging control of the vehicle-mounted energy storage module according to the state of the vehicle-mounted energy storage module when charging is required; the charging control and execution unit specifically comprises:
when the state of the vehicle-mounted energy storage module is a module overtemperature warning and/or a charging current overtemperature warning, reducing the charging current of the corresponding vehicle-mounted energy storage module;
when the state of the vehicle-mounted energy storage module is one or more of a single overvoltage fault, a module overtemperature fault, a total current overhigh fault and a total voltage overhigh fault, the charging of the corresponding vehicle-mounted energy storage module or all the vehicle-mounted energy storage modules is forbidden;
when the state of the vehicle-mounted energy storage module is a module overtemperature fault and a reset message is acquired, charging and resetting control is carried out on the corresponding vehicle-mounted energy storage module;
when all the vehicle-mounted energy storage modules are normal, charging each vehicle-mounted energy storage module according to a preset total charging current;
when one or more vehicle-mounted energy storage modules are withdrawn from operation, current-limiting charging is carried out according to the capacity of each vehicle-mounted energy storage module and the preset total charging current;
and when all the vehicle-mounted energy storage modules fail, stopping charging of all the vehicle-mounted energy storage modules.
5. The tram ground charging control device according to claim 4, wherein: the acquisition unit is in communication connection with the tram through a train-ground communication device; the ground communication device comprises a sending module and a receiving module which are in wireless communication connection, wherein the sending module is arranged at a vehicle end, and the receiving module is arranged at a ground end.
6. The tram ground charging control device according to claim 5, characterized in that: the transmitting module is in communication connection with the tram through a CANopen communication protocol, and the receiving module is in communication connection with the acquisition unit through RS 485.
7. An electronic device, the device comprising:
a memory for storing a computer program;
a processor for implementing the tramcar ground charging control method according to any one of claims 1 to 3 when executing the computer program.
8. A computer-readable storage medium, characterized by: the computer-readable storage medium has stored thereon a computer program which, when executed by a processor, implements the tram ground charging control method of any one of claims 1 to 3.
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| CN110682806B (en) * | 2019-07-19 | 2021-06-22 | 北京航空航天大学 | Trolley bus based on wireless charging technology and operation control method thereof |
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| CN115817250A (en) | 2023-03-21 |
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