Marine lithium battery power propulsion control system and propulsion system
By introducing a redundant lithium-ion propulsion control system into the ship's propulsion control system, the problem of untimely power adjustment in the event of a ship failure is solved, and rapid system switching and improved stability are achieved.
Patent Information
- Application Number
- CN202422809806.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-15
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2034-11-15
AI Technical Summary
Existing ship propulsion control systems lack backup control methods in the event of a failure, resulting in the inability to adjust the ship's power in a timely manner, affecting maneuverability and stability.
A marine lithium-ion propulsion control system was designed, which includes a control console, a central control box, and a local control box. It is equipped with a follow-up control module and a backup control module. Redundant control is achieved through Ethernet connection. The central control unit is electrically connected to the local control unit, and the DC bus is connected to the communication conversion module through the CAN bus to ensure system stability.
When the follow-up control module fails, it can quickly switch to the backup control module, which improves the safety and stability of the system and ensures the rapid adjustment and redundancy of the ship's power system.
Smart Images
Figure CN223340874U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of ship propulsion systems, and in particular to a ship-used lithium-ion power propulsion control system and propulsion system. Background Art
[0002] In the field of shipping, propulsion systems play a crucial role in ensuring safe navigation and normal operation of ships. With the continuous development of the shipping industry, the reliability and stability of ship power systems are increasingly demanded.
[0003] Despite recent advances in marine technology, some ships' propulsion control systems still lack sufficient redundancy to cope with failures. In complex and volatile navigation environments, various factors, such as severe weather and electromagnetic interference, can trigger propulsion control system failures. Some existing systems are unable to quickly and easily switch to effective backup control modes when a failure occurs, resulting in the inability to adjust the ship's power in a timely manner, impacting the ship's maneuverability and stability. Summary of the Invention
[0004] The embodiments of the present application provide a marine lithium-ion power propulsion control system and a propulsion system to solve the problem in related technologies that ships lack a backup control method, resulting in the inability to adjust the ship's power in a timely manner, affecting the maneuverability and stability of the ship.
[0005] In the first aspect, a marine lithium-ion propulsion control system is provided, which includes: a control console, a central control box, and a local control box.
[0006] The driving console is equipped with a control panel, which includes a follow-up control module and a backup control module;
[0007] The central control box includes a central control unit, a central switch, and a central communication conversion module. The central control unit and the central switch, as well as the central switch and the central communication conversion module, are connected via Ethernet. The central control unit is also electrically connected to the follow-up control module and the backup control module.
[0008] The local control box includes a local control unit, a local switch and a local communication conversion module, wherein the local control unit and the local switch, and the local switch and the local communication conversion module are connected via Ethernet;
[0009] The central control unit is electrically connected to the local control unit; the local control unit is electrically connected to a DC bus, and the DC bus is connected to the local communication conversion module and the central communication conversion module through a CAN bus.
[0010] In some embodiments, a remote transmission box is further included, and the central switch and the remote transmission box are connected via Ethernet.
[0011] In some embodiments, the driving console further includes a remote control touch screen, and the remote control touch screen is connected to the central switch via Ethernet.
[0012] In some embodiments, the local control box further includes a local touch screen, and the local switch and the local touch screen are connected via Ethernet.
[0013] In some embodiments, the central control unit is electrically connected to a cooling system and a power supply.
[0014] A marine lithium-powered propulsion system, comprising a propulsion subsystem, wherein the propulsion subsystem comprises:
[0015] Main propulsion motor;
[0016] a main propulsion frequency converter connected to the main propulsion motor;
[0017] a lithium battery pack connected to the main propulsion inverter;
[0018] And, a marine lithium-electric propulsion control system, the central control unit is connected to the lithium battery pack and the main propulsion inverter respectively.
[0019] In some embodiments, the marine lithium-powered propulsion control system further includes a DC distribution board, the main propulsion inverter is connected to the lithium battery pack via the DC distribution board, and the central control unit is connected to the DC distribution board.
[0020] In some embodiments, the propulsion subsystem further includes an inverter power supply, and an input end of the inverter power supply is connected to an output end of a DC distribution board.
[0021] In some embodiments, the marine lithium-powered propulsion control system further includes an AC distribution board, and the output end of the inverter power supply is connected to the input end of the AC distribution board.
[0022] In some embodiments, the marine lithium-powered propulsion control system includes two propulsion subsystems.
[0023] The beneficial effects brought about by the technical solution provided in this application include: each system of the ship is designed with a backup control module. In the event of a failure of the follow-up control module, the backup control module can be quickly selected and used, providing safer protection for the power system of the entire ship.
[0024] An embodiment of the present application provides a marine lithium-powered propulsion control system and a propulsion system. Since the control panel includes a follow-up control module and a backup control module, in the event of a failure of the follow-up control module, the backup control module can be quickly selected for use, providing greater safety protection for the entire ship's power system. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.
[0026] Figure 1 A single-line schematic diagram of a marine lithium-ion propulsion system provided in an embodiment of the present application.
[0027] Figure 2 This is a structural diagram of a marine lithium-ion power propulsion control system provided in an embodiment of the present application.
[0028] In the figure, 100, driving console; 101, control panel; 102, remote control touch screen; 200, central control box; 201, central control unit; 202, central switch; 203, central communication conversion module; 300, local control box; 301, local control unit; 302, local switch; 303, local communication conversion module; 304, local touch screen; 400, remote transmission box; 500, DC bus; 600, cooling system; 700, power supply;
[0029] 1. Main propulsion motor; 2. Main propulsion inverter; 3. Lithium battery pack; 4. DC distribution board; 5. Inverter power supply; 6. AC distribution board. DETAILED DESCRIPTION
[0030] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.
[0031] The embodiments of the present application provide a marine lithium-ion power propulsion control system and propulsion system, which can solve the problem in related technologies that ships lack backup control methods, resulting in the inability to adjust the ship's power in a timely manner, affecting the maneuverability and stability of the ship.
[0032] A marine lithium-electric propulsion system includes two propulsion subsystems serving as backup for each other. Each propulsion subsystem includes a main propulsion motor 1, a main propulsion inverter 2, a lithium battery pack 3, and a marine lithium-electric propulsion control system.
[0033] Figure 1This is a single-line schematic diagram of a marine lithium-ion propulsion system. Each propulsion subsystem includes a lithium battery pack 3. The input end of the lithium battery pack 3 can be connected to a shore-based charging station for charging. The output end of the lithium battery pack 3 is connected to a DC distribution board 4. The central control unit 201 is connected to the DC distribution board 4. The output end of the DC distribution board 4 is connected to the main propulsion inverter 2 and the inverter power supply 5 respectively. The output end of the main propulsion inverter 2 is connected to the input end of the main propulsion motor 1, and the output end of the main propulsion motor 1 is connected to the propeller. The main propulsion inverter 2 converts DC power into AC power with continuously adjustable frequency and voltage, provides working power for the main propulsion motor 1, and performs frequency conversion control to drive the main propulsion motor 1 to rotate the propeller, thereby achieving the purpose of moving the ship forward or backward.
[0034] The output end of the inverter power supply 5 is connected to the AC distribution board 6. The inverter power supply 5 is used to convert the DC power provided by the DC bus into three-phase 400V industrial frequency AC power, and is connected to the AC distribution board 6 to provide industrial frequency AC power for other electrical equipment on the ship.
[0035] Figure 2 The present invention is a structural diagram of a marine lithium-powered propulsion control system, which includes a control console and a central control box 200 arranged in the cockpit, and a local control box 300 arranged in the cabin.
[0036] The driver's console 100 is equipped with a control panel 101 and a remote touch screen 102. The control panel 101 includes a follower control module and a backup control module. In the event of a follower control module failure, the backup control module can be quickly selected for use, providing high redundancy and strong stability. The remote touch screen 102 can be used to set control system parameters and display control system status and alarms.
[0037] The central control box 200 is wall-mounted, with cables entering from the bottom. It is connected to the lithium battery pack 3, the main propulsion inverter 2, and the DC power distribution board 4. It houses a built-in PLC controller, an isolation module, detection and alarm circuits, and an indicator circuit. It performs operations such as starting, stopping, and speed regulation on the motors, and provides feedback on the motor's operating status and speed. If an anomaly is detected, immediate measures are taken to protect the equipment and the vessel.
[0038] The central control box 200 includes a central control unit 201, a central switch 202, and a central communication conversion module 203. The central control unit 201 and the central switch 202, as well as the central switch 202 and the central communication conversion module 203, are connected via Ethernet. The central control unit 201 is also electrically connected to the slave control module and the backup control module. The central switch 202 is connected to the remote control touch screen 102 and the remote transmission box 400 via Ethernet. The remote transmission box 400 is used to transmit shipboard data to a remote location. For example, it can send the ship's operating status and propulsion system data to a shore-based monitoring center or relevant management department via a 4G network.
[0039] The central control unit 201 is primarily responsible for command processing and control signal output. The central switch 202 is responsible for data exchange between the central control unit 201 and the central communication conversion module 203, expanding communication interfaces and ensuring smooth communication between modules. The central communication conversion module 203 is responsible for communication protocol conversion. In a marine propulsion system, different devices and modules may use different communication protocols. The central communication conversion module 203 is responsible for converting data from these different protocols, converting and adapting received signals to ensure that the signals are correctly processed by the central control unit 201 and other related modules, thereby ensuring the stable operation of the entire system.
[0040] If the central control box 200 fails, the local control box 300 can be manually operated. The local control box 300 receives operational instructions and controls the motor's start, stop, speed regulation, and direction reversing, ensuring the vessel can navigate according to instructions from the bridge. It monitors the operating status of the propulsion system in real time and automatically cuts off power if an abnormality such as overload or short circuit is detected, protecting the equipment and the vessel. It also performs preliminary fault diagnosis on the propulsion system, helping engineers quickly locate the problem and shorten repair time.
[0041] The local control box 300 includes a local control unit 301, a local switch 302, a local communication conversion module 303, and a local touch screen 304. The local control unit 301 and local switch 302, the local switch 302 and local communication conversion module 303, and the local switch 302 and local touch screen 304 are all connected via Ethernet. The local control unit 301 is primarily responsible for control, monitoring, fault diagnosis, and interlocking control. The local switch 302 is responsible for local data exchange and network connectivity. The local communication conversion module 303 is responsible for local communication protocol conversion and signal adaptation.
[0042] The central control unit 201 and the local control unit 301 are electrically connected; the local control unit 301 is electrically connected to a DC bus 500, and the DC bus 500 is connected to the local communication conversion module 303 and the central communication conversion module 203 via a CAN bus.
[0043] The central control unit 201 is electrically connected to the cooling system 600 and the power supply 700 .
[0044] In the description of this application, it should be noted that the terms "upper" and "lower" 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 this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.
[0045] It should be noted that, in this application, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.
[0046] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.
Claims
1. A marine lithium-ion power propulsion control system, characterized in that: It includes: Driving console (100), central control box (200) and local control box (300), The driving console (100) is equipped with a control panel (101), and the control panel (101) includes a follow-up control module and a backup control module; The central control box (200) includes a central control unit (201), a central switch (202) and a central communication conversion module (203). The central control unit (201) and the central switch (202), as well as the central switch (202) and the central communication conversion module (203) are connected via Ethernet. The central control unit (201) is also electrically connected to the follow-up control module and the standby control module. The local control box (300) includes a local control unit (301), a local switch (302), and a local communication conversion module (303), wherein the local control unit (301) and the local switch (302), and the local switch (302) and the local communication conversion module (303) are connected via Ethernet; The central control unit (201) and the local control unit (301) are electrically connected; the local control unit (301) is electrically connected to a DC bus (500), and the DC bus (500) is connected to a local communication conversion module (303) and a central communication conversion module (203) via a CAN bus.
2. The marine lithium-powered propulsion control system according to claim 1, characterized in that: It also includes a remote transmission box (400), and the central switch (202) and the remote transmission box (400) are connected via Ethernet.
3. The marine lithium-ion power propulsion control system according to claim 1, characterized in that: The driving console (100) further comprises a remote control touch screen (102), and the remote control touch screen (102) is connected to the central switch (202) via Ethernet.
4. The marine lithium-powered propulsion control system according to claim 1, characterized in that: The local control box (300) further includes a local touch screen (304), and the local switch (302) and the local touch screen (304) are connected via Ethernet.
5. The marine lithium-powered propulsion control system according to claim 1, characterized in that: The central control unit (201) is electrically connected to a cooling system (600) and a power supply (700).
6. A marine lithium-ion propulsion system, characterized in that: It includes a propulsion subsystem, and the propulsion subsystem includes: Main propulsion motor (1); A main propulsion frequency converter (2), connected to the main propulsion motor (1); a lithium battery pack (3) connected to the main propulsion frequency converter (2); And, according to any one of claims 1 to 5, the marine lithium-electric propulsion control system, the central control unit (201) is connected to the lithium battery pack (3) and the main propulsion frequency converter (2) respectively.
7. The marine lithium-ion propulsion system according to claim 6, characterized in that: It also includes a DC distribution board (4), the main propulsion frequency converter (2) and the lithium battery pack (3) are connected via the DC distribution board (4), and the central control unit (201) is connected to the DC distribution board (4).
8. The marine lithium-ion propulsion system according to claim 7, characterized in that: The propulsion subsystem further comprises an inverter power supply (5), the input end of the inverter power supply (5) being connected to the output end of the DC distribution board (4).
9. The marine lithium-powered propulsion system according to claim 8, characterized in that: It also includes an AC distribution board (6), and the output end of the inverter power supply (5) is connected to the input end of the AC distribution board (6).
10. The marine lithium-ion propulsion system according to claim 6, wherein: The marine lithium-electric propulsion system includes two propulsion subsystems.