CN219086832U - Intelligent power exchange management system of electric ship - Google Patents
Intelligent power exchange management system of electric ship Download PDFInfo
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- CN219086832U CN219086832U CN202223185378.2U CN202223185378U CN219086832U CN 219086832 U CN219086832 U CN 219086832U CN 202223185378 U CN202223185378 U CN 202223185378U CN 219086832 U CN219086832 U CN 219086832U
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Abstract
The utility model discloses an intelligent power-changing management system of an electric ship, which comprises a plurality of battery cluster modules connected in parallel, wherein each battery cluster module comprises a plurality of battery packs connected in series, and each battery cluster module also comprises a master control BCMU control system and a plurality of slave control BMU control systems; the slave BMU control systems of each battery cluster module are respectively connected with a battery pack in the battery cluster module; the main control BCMU control system comprises a main MCU control module, a main internal CAN communication module, a main external CAN communication module and a main 485 communication module. The utility model adopts a mode of slave control acquisition and master control, is convenient for unified monitoring and management of the battery pack and the battery cluster, and ensures the use safety of the battery pack and the battery cluster.
Description
Technical Field
The utility model relates to the technical field of electric ship battery intelligent management systems, in particular to an electric ship intelligent power conversion management system.
Background
Under the push of the high-speed development of new energy technology, along with the continuous development of power battery technology, the trend of ship electrodynamic trend is gradually rising, and electric ships driven by battery power systems are widely used in the world. The rapid development of electric ships benefits from the advantages of battery power and the addition of other aspects to the industry, and the operation cost of pushing the development of electric ships to ban conventional diesel ships has great advantages. However, a single battery pack needs to obtain high-voltage and high-energy electric energy, which has great difficulty (such as great assembly difficulty, increased charging limitation, low charging energy supplementing efficiency and the like), and also has great risk, management, maintenance and other problems (such as the problems of monitoring serial data of a plurality of battery packs, acquiring accurate data and preventing and controlling the ultra-high voltage of the batteries after serial connection).
Disclosure of Invention
The utility model aims to provide an intelligent power conversion management system of an electric ship so as to solve the problems.
In order to achieve the above purpose, the following technical scheme is adopted:
an intelligent power-changing management system of an electric ship comprises a plurality of battery cluster modules which are connected in parallel, wherein each battery cluster module comprises a plurality of battery packs which are connected in series, and each battery cluster module also comprises a master control BCMU control system and a plurality of slave control BMU control systems; the slave BMU control systems of each battery cluster module are respectively connected with a battery pack in the battery cluster module; the main control BCMU control system comprises a main MCU control module, a main internal CAN communication module, a main external CAN communication module and a main 485 communication module; the main control BCMU control system of each battery cluster module carries out information interaction with a plurality of auxiliary control BMU control systems in the battery cluster module through a main internal CAN communication module, and the main control BCMU control system of each battery cluster module carries out information interaction with the main control BCMU control systems of other battery cluster modules through a main external CAN communication module; and the main control BCMU control system of each battery cluster module performs information interaction with external monitoring equipment through a main 485 communication module.
Further, the main control BCMU control system also comprises a battery cluster discharging loop control module and a current detection module which are respectively connected with the main MCU control module; the battery cluster discharging loop control module is connected with the positive electrode of the battery pack after being connected in series, and the current detection module is connected with the negative electrode of the battery pack after being connected in series.
Further, the main control BCMU control system also comprises a UART communication module, a main address coding module, an operation control switch module, a data storage module and an electric quantity indication module which are respectively connected with the main MCU control module.
Further, the main control BCMU control system also comprises a leakage detection module, a battery cluster equalization module and a main voltage reduction power supply management module which are respectively connected with the main MCU control module.
Further, the slave control BMU control system comprises a slave MCU control module, and a slave internal CAN communication module, an AFE unit acquisition module, a battery pack charging loop control module, a battery pack discharging loop control module, a slave 485 communication module and a temperature detection module which are respectively connected with the slave MCU control module.
Further, the AFE unit acquisition module comprises an AFE acquisition unit connected with the slave MCU control module, and a battery cell single voltage acquisition unit, a driving battery cell differential pressure equalization unit and a charging current acquisition unit which are connected with the AFE acquisition unit.
Further, the battery pack charging loop control module comprises an MOS tube driving unit connected with the AFE acquisition unit and a charging MOS tube connected with the MOS tube driving unit.
Further, the battery pack discharging loop control module comprises a discharging relay driving unit connected with the slave MCU control module and a relay connected with the discharging relay driving unit.
Further, the temperature detection module comprises a charging MOS tube temperature detection unit and a battery cell temperature detection unit.
Further, the slave control BMU control system also comprises a slave address coding module and a slave step-down power supply management module which are connected with the slave MCU control module.
By adopting the scheme, the utility model has the beneficial effects that:
1) The method adopts a slave control acquisition and master control mode, is convenient for uniformly monitoring and managing the battery pack and the battery cluster, and ensures the use safety of the battery pack and the battery cluster;
2) The plurality of battery packs are connected in series to form the battery cluster, and then the battery cluster is connected with the battery cluster in parallel to obtain a high-energy battery pack, so that the power supply requirement is met, meanwhile, the battery cluster can be used in a single cluster or in a parallel cluster mode, namely, the single cluster or the multiple clusters can be selected according to the energy requirement, the cluster can be flexibly detached or combined in parallel, the use is convenient, the charging mode adopts a cluster detachment and power change mode, when the battery cluster needs to be changed, the battery cluster fully charged by a group of shared charging stations can be directly replaced or directly combined for use, and the power change is simple and convenient;
3) The battery clusters are charged in a mode that each battery pack in the battery clusters is matched with a charger, namely one-to-one charging is performed, so that charging efficiency and safety are improved, meanwhile, the full battery clusters can be replaced at a shared charging station, and the battery clusters with no electricity can be charged at charging piles on any sites, so that the conventional severe charging requirements are greatly reduced, and the charging efficiency and the charging safety are greatly improved.
Drawings
FIG. 1 is a schematic block diagram of the present utility model;
fig. 2 is a schematic block diagram of a master BCMU control system of the present utility model;
FIG. 3 is a schematic block diagram of a master buck power management module of the present utility model;
FIG. 4 is a schematic block diagram of a slave BMU control system of the present utility model;
FIG. 5 is a schematic block diagram of a slave step-down power management module of the present utility model;
FIG. 6 is a circuit diagram of a master address encoding module of the present utility model;
FIG. 7 is a circuit diagram of an operation control switch of the present utility model;
FIG. 8 is a circuit diagram of a leakage detection module according to the present utility model;
fig. 9 is a circuit diagram of a battery cluster equalization module of the present utility model;
fig. 10 is a circuit diagram of the current detection module of the present utility model.
Detailed Description
The utility model will be described in detail below with reference to the drawings and the specific embodiments.
Referring to fig. 1 to 10, the present utility model provides an intelligent power conversion management system of an electric ship, including a plurality of battery cluster modules connected in parallel with each other, each of the battery cluster modules including a plurality of battery packs connected in series with each other, each of the battery cluster modules further including a master control BCMU control system and a plurality of slave control BMU control systems; the slave BMU control systems of each battery cluster module are respectively connected with a battery pack in the battery cluster module; the main control BCMU control system comprises a main MCU control module, a main internal CAN communication module, a main external CAN communication module and a main 485 communication module; the main control BCMU control system of each battery cluster module carries out information interaction with a plurality of auxiliary control BMU control systems in the battery cluster module through a main internal CAN communication module, and the main control BCMU control system of each battery cluster module carries out information interaction with the main control BCMU control systems of other battery cluster modules through a main external CAN communication module; and the main control BCMU control system of each battery cluster module performs information interaction with external monitoring equipment through a main 485 communication module.
The main control BCMU control system also comprises a battery cluster discharging loop control module and a current detection module which are respectively connected with the main MCU control module; the battery cluster discharging loop control module is connected with the positive electrode of the battery pack after being connected in series, and the current detection module is connected with the negative electrode of the battery pack after being connected in series; the main control BCMU control system also comprises a UART communication module, a main address coding module, an operation control switch module, a data storage module and an electric quantity indication module which are respectively connected with the main MCU control module; the main control BCMU control system also comprises a leakage detection module, a battery cluster equalization module and a main voltage reduction power supply management module which are respectively connected with the main MCU control module; the slave control BMU control system comprises a slave MCU control module, and a slave internal CAN communication module, an AFE unit acquisition module, a battery pack charging loop control module, a battery pack discharging loop control module, a slave 485 communication module and a temperature detection module which are respectively connected with the slave MCU control module; the AFE unit acquisition module comprises an AFE acquisition unit connected with the slave MCU control module, and a battery cell single voltage acquisition unit, a driving battery cell differential pressure equalization unit and a charging current acquisition unit which are connected with the AFE acquisition unit; the battery pack charging loop control module comprises an MOS tube driving unit connected with the AFE acquisition unit and a charging MOS tube connected with the MOS tube driving unit; the battery pack discharging loop control module comprises a discharging relay driving unit connected with the slave MCU control module and a relay connected with the discharging relay driving unit; the temperature detection module comprises a charging MOS tube temperature detection unit and a battery cell temperature detection unit; the slave control BMU control system further comprises a slave address coding module and a slave voltage reduction power supply management module which are connected with the slave MCU control module.
The working principle of the utility model is as follows:
with continued reference to fig. 1 to 10, each battery cluster module of the system includes a master control BCMU control system (BMU is a battery management unit, BCMU is a battery pack control management unit) and a plurality of slave control BMU control systems, the system uses a plurality of battery packs in series (the plurality of battery packs are connected in series to form a battery cluster, so that the problems of increasing the number of orders of magnitude and large distribution density of the battery cells caused by the serial connection of single battery packs through single battery cells are solved), one battery cluster is formed (the battery cluster is connected with the battery cluster in parallel, so that the problems of increasing the number of orders of magnitude and large distribution density of the battery cells caused by the parallel connection of single battery packs are solved), each battery pack is managed by 1 slave control BMU control system, and the slave control BMU control system is responsible for carrying out data acquisition on the battery packs such as single voltage, temperature, current and the functions of charge-discharge control, pressure difference equalization and the like; the slave control BMU control system and the master control BCMU control system communicate in a CAN bus mode, the slave control BMU control system transmits data upwards, the battery cluster master control BCMU control system processes battery information uploaded by the slave control BMU control system and collects, analyzes and processes various functional modules so as to control a battery cluster discharging loop contactor when an abnormal situation occurs in a battery cluster; the battery cluster master control BCMU control system and the battery cluster master control BCMU control system are communicated in a CAN bus mode, the voltage difference problem between the parallel battery clusters is adjusted through CAN communication, and the energy of the battery cluster with high energy is transferred to the battery cluster with low energy.
In the embodiment, the system adopts a mode of slave control acquisition and master control, so that the battery pack and the battery cluster are conveniently monitored and managed in a unified way, and the use safety of the battery pack and the battery cluster is ensured; meanwhile, the battery clusters can be used singly or in parallel, namely, single clusters or multiple clusters can be selected according to the energy requirements, the clusters are flexibly disassembled or combined, the use is convenient, and the charging mode adopts a cluster disassembling and power changing mode, when the battery clusters need to be changed, the battery clusters fully filled in a group of shared charging stations are directly replaced or directly combined for use, and the power changing is simple and convenient; in addition, the battery clusters are charged in a mode that each battery pack in the battery clusters is matched with a charger, namely one-to-one charging is performed, so that the charging efficiency and the charging safety are improved, meanwhile, the battery clusters can be used for replacing the fully charged battery clusters at a shared charging station, and the battery clusters without electricity can be charged by charging piles in any place, so that the conventional severe charging requirement is greatly reduced, and the charging efficiency and the charging safety are greatly improved. Specifically:
slave BMU control system:
from step-down power management module: the battery pack total voltage input is output to an isolated and non-isolated buck power supply through a two-way output of the flyback buck unit, wherein the isolated output buck power supply is used for supplying power to a 485 communication module, and the non-isolated buck power supply is used for supplying power to other various modules.
From the internal CAN communication module: the slave control BMU control system is used for carrying out communication interaction with the master control BCMU control system, each module of the slave control BMU control system is connected to the slave MCU control module, the slave MCU control module is connected with the master internal CAN communication module through the slave internal CAN communication module, and data collected by the slave control BMU control system are sent to the master control BCMU control system.
From 485 communication module: the battery charger is used for carrying out information interaction with the charger, a charging instruction is sent to the charger from the MCU control module through the 485 communication module, the charger adjusts charging power according to the instruction so as to open charging, in addition, the battery cell voltage is monitored in real time from the MCU control module to the AFE unit acquisition module, when the AFE unit acquisition module monitors that the battery cell voltage reaches an overvoltage value, the charging instruction is sent to be closed from the MCU control module, and the charger stops charging.
Slave MCU control module: the slave MCU control module is connected to the slave internal CAN communication module, and is in communication interaction with the master control BCMU control system, and the acquired data such as monomer voltage, temperature, current and the like are uploaded to the master control BCMU control system through the slave internal CAN communication module, and the master control BCMU control system receives the data for operation analysis processing.
An AFE unit acquisition module; the battery pack voltage balancing device comprises an AFE acquisition unit, an MCU control module, a main control BCMU control system, a driving battery cell voltage difference balancing unit, a battery pack single cell voltage balancing unit, a battery pack circuit charging current, a battery cell voltage balancing signal and a battery pack voltage balancing control unit.
And a temperature detection module: the slave MCU control module is used for uploading temperature data to the master control BCMU control system through the slave internal CAN communication module.
The battery pack charging loop control module: the charging control device is used for controlling the connection and disconnection of a battery pack charging loop, the slave MCU control module is connected to the AFE acquisition unit, the AFE acquisition unit is connected to a charging MOS tube in the charging loop, when the slave MCU control module monitors that the battery pack is in a charging abnormal condition, the slave MCU control module sends a charging closing instruction to the AFE acquisition unit, the AFE acquisition unit outputs a charging closing signal, the charging MOS tube is closed, and the charging loop in the battery pack is disconnected to prohibit charging.
The battery pack discharging loop control module: and after the discharging loop controlled by the battery cluster discharging loop control module fails, a secondary discharging protection function is started, namely when the secondary abnormal condition of the battery pack is detected to be discharged from the MCU control module, a discharging closing signal is sent to the battery pack discharging loop control module from the MCU control module so as to disconnect the discharging loop in the battery pack through the discharging relay, so that discharging is forbidden.
The slave address coding module: the serial number of the battery packs connected in series in the battery cluster is used for effectively reading the corresponding information data of the battery packs by the battery cluster main control BCMU control system, and the information condition of each battery pack in the battery cluster can be accurately monitored.
Master BCMU control system:
the main step-down power supply management module: the power supply device is used for supplying power to various modules in the master control BCMU control system and supplying power to a slave internal CAN communication module of the slave control BMU control system.
Main internal CAN communication module: the system is used for communicating and interacting information between the master control BCMU control system and the slave control BMU control system, is connected to the master MCU control module, and can receive data uploaded by the slave control BMU control system so as to carry out operation analysis processing.
The main external CAN communication module: the method is used for communication interaction between the main control BCMU control systems, namely transmission of parallel information between the battery clusters.
Master 485 communication module: the monitoring device is used for carrying out information interaction between the main control BCMU control system and external monitoring devices, the monitoring devices are communicated, and the main MCU control module is connected to the main 485 communication module and is used for transmitting the battery cluster data to the monitoring devices.
UART communication module: the main control BCMU control system is used for communicating with the serial display screen to transmit the cell data, the main MCU control module is connected to the UART communication module and connected to the serial display screen, and the display screen monitors the interface to display the system information.
The main MCU control module: the system is connected with each module and used for collecting module data, carrying out data operation and controlling each module to work, is a nerve center of the whole system and is a brain of the whole system.
A main address coding module: the battery cluster is used for numbering the battery clusters, the battery clusters are connected in parallel with corresponding identity codes and are connected to the main MCU control module, and the main MCU control module is connected with the main external CAN communication module so as to carry out information interaction between the battery clusters, so that corresponding information data of the battery clusters CAN be effectively read between the battery cluster main control BCMU control systems.
And (3) operating a control switch module: for system operation or shut down.
And a data storage module: and the data storage module is used for storing data information and is connected to the main MCU control module for data storage or reading.
And the electric quantity indication module is used for: the method is used for displaying the residual electric quantity of the battery cluster, reminding and warning the energy of the battery cluster.
The electric leakage detection module: the battery cluster shell insulation state monitoring device is used for monitoring the battery cluster shell insulation state in real time, judging whether an electric leakage condition exists or not, and preventing high-voltage electric shock risks, and is connected to the main MCU control module to monitor the shell electric leakage condition.
And a battery cluster equalization module: the method is used for balancing the voltage between the battery clusters in parallel, so that the voltage between the battery clusters is balanced, the method is connected with a main MCU control module to control the balancing module to start balancing or close balancing, the voltage condition of the battery clusters can be accurately monitored, the voltage balance between the battery clusters can be effectively regulated, the voltage is restrained from being large, and the current is restrained from flowing backwards abnormally, for example, when the battery clusters are in power change, the full-charged battery clusters are connected into the used battery clusters, and the full-charged battery clusters transfer the energy to the low-electric battery clusters through the balancing module, so that the energy transfer is realized, and the energy balance between the battery clusters is realized.
A current detection module: the relay is used for collecting the current in the battery cluster discharging loop, is connected to the main MCU control module, transmits current data to the main MCU control module for operation, accurately monitors the electric quantity condition of the battery cluster, is connected to the relay in the battery cluster discharging loop control module, and closes the relay to disconnect the output if the current is abnormal.
A battery cluster discharge loop control module: for controlling the on and off of the discharge circuit.
The foregoing description of the preferred embodiment of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (10)
1. The intelligent power conversion management system of the electric ship comprises a plurality of battery cluster modules which are connected in parallel, wherein each battery cluster module comprises a plurality of battery packs which are connected in series, and the intelligent power conversion management system is characterized in that each battery cluster module also comprises a master control BCMU control system and a plurality of slave control BMU control systems; the slave BMU control systems of each battery cluster module are respectively connected with a battery pack in the battery cluster module; the main control BCMU control system comprises a main MCU control module, a main internal CAN communication module, a main external CAN communication module and a main 485 communication module; the main control BCMU control system of each battery cluster module carries out information interaction with a plurality of auxiliary control BMU control systems in the battery cluster module through a main internal CAN communication module, and the main control BCMU control system of each battery cluster module carries out information interaction with the main control BCMU control systems of other battery cluster modules through a main external CAN communication module; and the main control BCMU control system of each battery cluster module performs information interaction with external monitoring equipment through a main 485 communication module.
2. The intelligent power-changing management system of the electric ship according to claim 1, wherein the main control BCMU control system further comprises a battery cluster discharging loop control module and a current detection module which are respectively connected with the main MCU control module; the battery cluster discharging loop control module is connected with the positive electrode of the battery pack after being connected in series, and the current detection module is connected with the negative electrode of the battery pack after being connected in series.
3. The intelligent power conversion management system of an electric ship according to claim 1, wherein the main control BCMU control system further comprises a UART communication module, a main address coding module, an operation control switch module, a data storage module and an electric quantity indication module, which are respectively connected with the main MCU control module.
4. The intelligent power conversion management system of an electric ship according to claim 3, wherein the main control BCMU control system further comprises a leakage detection module, a battery cluster equalization module and a main step-down power supply management module, which are respectively connected with the main MCU control module.
5. The intelligent power conversion management system of an electric vessel according to claim 1, wherein the slave control BMU control system comprises a slave MCU control module, and a slave internal CAN communication module, an AFE unit acquisition module, a battery pack charging loop control module, a battery pack discharging loop control module, a slave 485 communication module and a temperature detection module, which are respectively connected with the slave MCU control module.
6. The intelligent power conversion management system of an electric ship according to claim 5, wherein the AFE unit acquisition module comprises an AFE acquisition unit connected with the slave MCU control module, and a cell unit voltage acquisition unit, a driving cell voltage difference equalization unit and a charging current acquisition unit connected with the AFE acquisition unit.
7. The intelligent power conversion management system of the electric ship according to claim 6, wherein the battery pack charging loop control module comprises a MOS tube driving unit connected with the AFE collecting unit, and a charging MOS tube connected with the MOS tube driving unit.
8. The intelligent power conversion management system of an electric ship according to claim 6, wherein the battery pack discharging loop control module includes a discharging relay driving unit connected with the slave MCU control module, and a relay connected with the discharging relay driving unit.
9. The intelligent power conversion management system of the electric ship according to claim 5, wherein the temperature detection module comprises a charging MOS tube temperature detection unit and a battery cell temperature detection unit.
10. The intelligent power conversion management system of the electric ship according to claim 5, wherein the slave control BMU control system further comprises a slave address coding module and a slave step-down power supply management module which are connected with the slave MCU control module.
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| CN202223185378.2U CN219086832U (en) | 2022-11-28 | 2022-11-28 | Intelligent power exchange management system of electric ship |
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| CN202223185378.2U CN219086832U (en) | 2022-11-28 | 2022-11-28 | Intelligent power exchange management system of electric ship |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116387655A (en) * | 2023-06-06 | 2023-07-04 | 江苏大秦新能源科技有限公司 | Household intelligent control system based on CAN bus and daisy chain communication |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116387655A (en) * | 2023-06-06 | 2023-07-04 | 江苏大秦新能源科技有限公司 | Household intelligent control system based on CAN bus and daisy chain communication |
| CN116387655B (en) * | 2023-06-06 | 2023-08-22 | 江苏大秦新能源科技有限公司 | Household intelligent control system based on CAN bus and daisy chain communication |
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