Electrical system for single-drive ship

Abstract

The utility model relates to a single-drive marine electrical system which comprises a power battery pack, the output end of the power battery pack is connected with the input end of a power battery high-voltage power distribution cabinet, the power battery pack is in communication connection with a marine controller, and the controlled end of a drive motor is connected with the control end of a drive controller. The input end of the driving controller is connected with the output end of the power battery high-voltage power distribution cabinet, the driving controller is in communication connection with the marine controller, the output end of the power battery high-voltage power distribution cabinet is connected with the input end of the low-voltage power distribution box, and the output end of the low-voltage power distribution box is connected with the input end of the marine controller. The output end of the low-voltage distribution box is connected with the input ends of the tilting motor, the steering motor, the power battery cooling water pump, the driving system cooling water pump, the in-cabin drainage pump and the instrument, and the steering motor, the power battery cooling water pump, the driving system cooling water pump and the instrument are in communication connection with the marine controller. According to the utility model, centralized scheduling and control of each ship electric system are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric boat communication control, in particular to an electrical system for a single-drive boat. Background Art

[0002] The existing mechanical architecture of fuel-powered ships is not compatible with the development needs of pure electric ships. The electrification and intelligent development needs of various subsystems of pure electric ships are based on the application design of pure electric ships. In order to reduce the bulkiness of the system layout and reduce the interconnection between systems, a modular design of the structure is often adopted. The advantage of this model is that each functional module is independent of each other, and the data transmission between them is realized on the shipboard network bus architecture. The result is that the operation of each function is clear and there are very few connecting lines between them. Normally, a functional module only needs to be supplied with power and a communication link. The network-based communication link realizes the coordinated control of the navigation process under the overall control of the entire ship controller.

[0003] An important concept in ship design is that the entire device must have very high reliability and safety redundancy. Once a functional component loses control, it must be able to maintain the original controllable state of navigation, quickly judge and deal with the problem, and immediately resume operation after the problem is solved. If the ship loses control, it may collide and overturn on the surface of rivers, lakes, and other places depending on the direction of the water flow.

[0004] After searching, the patent: A communication control device for pure electric boats (CN201910292550.8) includes a main controller, an energy system, a drive system and an inverter system. The main controller is connected to the energy system, the drive system and the inverter system through three CAN bus networks, one of which uses a cable medium and the other two use an optical fiber medium. One of the three CAN bus networks is in working state and the other two are in standby state. However, the above-mentioned devices are not integrated enough, and there are also deficiencies in network construction, which affects subsequent upgrades and expansions.

[0005] In view of the above-mentioned defects, the designers have actively carried out research and innovation in order to create a new type of single-drive marine electrical system to make it more valuable for industrial use. Utility Model Content

[0006] In order to solve the above technical problems, the purpose of the utility model is to provide a single-drive marine electrical system.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A single-drive marine electrical system comprises a power battery pack, a drive motor and a power battery high-voltage distribution cabinet, wherein the power output end of the power battery pack is connected to the power input end of the power battery high-voltage distribution cabinet, the signal end of the power battery pack is communicatively connected to the signal end of a marine controller, the power input end of the drive motor is connected to the power output end of the drive controller, the power input end of the drive controller is connected to the power output end of the power battery high-voltage distribution cabinet, the signal end of the drive controller is communicatively connected to the signal end of the marine controller, the power output end of the power battery high-voltage distribution cabinet is connected to the power input end of a low-voltage distribution box, the power output end of the low-voltage distribution box is connected to the power input end of the marine controller, the power output end of the low-voltage distribution box is connected to the power input end of a tilting motor, a steering motor, a power battery cooling water pump, a drive system cooling water pump, a cabin drainage pump and a power input end of an instrument, and the signal ends of the steering motor, the power battery cooling water pump, the drive system cooling water pump and the instrument are communicatively connected to the signal end of the marine controller.

[0009] Preferably, in the single-drive marine electrical system, the power battery high-voltage distribution cabinet is externally connected to a DC charging interface.

[0010] Preferably, in the single-drive marine electrical system, the marine controller is externally connected to a key switch.

[0011] Preferably, in the single-drive marine electrical system, the control end of the marine controller is connected to the controlled ends of the push rod and the steering wheel, and the signal ends of the push rod and the steering wheel are communicatively connected to the marine controller (signal end).

[0012] Preferably, in the single-drive marine electrical system, the input end of the marine controller is connected to the output end of the angle sensor.

[0013] Preferably, in the single-drive marine electrical system, the marine controller is connected to the power battery pack, the drive controller, the steering motor, the power battery cooling water pump, the drive system cooling water pump, the instrument, the push rod and the steering wheel through CAN communication.

[0014] By means of the above solution, the utility model has at least the following advantages:

[0015] The utility model aims to unify the functional distinction definition of each subsystem, the system network signal and message routing integration, and the power management integration, so as to realize the flexible increase and decrease configuration of the function / performance of the ship's diversified use scenarios, and continuously upgrade the demand expansion and flexible network topology. The utility model can improve the centralized scheduling and control of various systems of ship electrification, and has the expansion and upgrade of later intelligent expansion and new demand functions, and improve the flexibility of the electrical architecture of electric ships. The electrical architecture of the utility model is modularly differentiated, which is convenient for classified management and independent increase and decrease configuration; a network architecture is built to network the data of various subsystems of the ship, which is convenient for upgrading and replacement, and provides a rich data foundation for subsequent intelligent ships.

[0016] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 It is a network connection topology diagram of the utility model. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0022] Example

[0023] like Figure 1and Figure 2 As shown, a single-drive marine electrical system includes a power battery pack 1, a drive motor 2 and a power battery high-voltage distribution cabinet 3, the power output end of the power battery pack 1 is connected to the power input end of the power battery high-voltage distribution cabinet 3, the signal end of the power battery pack 1 is communicatively connected to the signal end of the marine controller 4, the power input end of the drive motor 2 is connected to the power output end of the drive controller 5, the power input end of the drive controller 5 is connected to the power output end of the power battery high-voltage distribution cabinet 3, and the signal end of the drive controller 5 is communicatively connected to the signal end of the marine controller 4. Communication connection, the power output end of the power battery high-voltage distribution cabinet 3 is connected to the power input end of the low-voltage distribution box 7, the power output end of the low-voltage distribution box 7 is connected to the power input end of the ship controller 4, the power output end of the low-voltage distribution box 7 is connected to the power input end of the tilting motor 8, the steering motor 9, the power battery cooling water pump 10, the drive system cooling water pump 11, the cabin drainage pump 12 and the instrument 13. The signal ends of the steering motor 9, the power battery cooling water pump 10, the drive system cooling water pump 11 and the instrument 13 are communicatively connected with the signal end of the ship controller 4.

[0024] The power battery high voltage distribution cabinet 3 in the present invention is externally connected to a DC charging interface 6 .

[0025] The marine controller 4 of the utility model is externally connected to a key switch 14 .

[0026] The control end of the marine controller 4 in the utility model is connected to the controlled ends of the push rod 15 and the steering wheel 16, and the push rod 15 and the steering wheel 16 are communicatively connected with the marine controller 4.

[0027] The input end of the marine controller 4 in the present invention is connected to the output end of the angle sensor 17 .

[0028] The marine controller 4 described in the utility model is connected with the power battery pack 1, the drive controller 5, the steering motor 9, the power battery cooling water pump 10, the drive system cooling water pump 11, the instrument 13, the push rod 15 and the steering wheel 16 through CAN communication.

[0029] like Figure 2 As shown, the utility model includes a hardware architecture and a network architecture.

[0030] The hardware architecture is divided into power battery pack and cooling system (power battery cooling water pump drive system cooling water pump), motor drive system, steering system, lifting system, instrumentation, and whole ship controller system based on functional definition.

[0031] The ship's power distribution uses high-voltage distribution devices (power battery high-voltage distribution cabinets) and low-voltage distribution devices (low-voltage distribution boxes, including DC12V, DC24V, etc.) as the energy distribution units for the entire ship.

[0032] The network control and line control backup redundancy of the whole ship controller serve as the basis of the whole ship electrical hardware architecture.

[0033] The network architecture uses the ship controller (BCU) as the central gateway, integrates the entire ship network according to functional requirements and implements domain isolation, including power battery segment, main motor segment, steering segment, power high and low voltage inverter segment, water cooling system segment, instrument segment, push rod segment, and steering wheel segment. The data interaction control of each segment function is uniformly carried out by the ship controller.

[0034] Signal control and message data are self-defined (defined by the field). This distributed architecture is conducive to the independent configuration of network segment data and free increase and decrease. It is also convenient for the basic data of the later expansion of smart ship needs to be flexibly configured.

[0035] The power battery network segment needs to complete the autonomous management of the power battery, realize the battery voltage, current, temperature, internal resistance, SOC, SOH, charging and discharging, power battery fault analysis, high-voltage distribution relay control, battery intelligent low-temperature heating management, and respond to the network control requirements and data feedback of the whole ship controller in a timely manner;

[0036] The main motor network segment needs to complete the autonomous management of the motor drive system, adjust the motor's current, voltage, temperature, frequency, phase sequence and other parameters, realize the motor's start, stop, speed adjustment, torque adjustment, forward and reverse motion state control, and respond to the network control requirements and data feedback of the whole ship controller in a timely manner.

[0037] The steering network segment needs to complete the steering command requirements sent by the entire ship controller, perform related speed, torque and angle control according to the network control signal, and feedback various fault conditions of the steering motor.

[0038] The high and low voltage inverter network segment of the power supply needs to complete the work instruction requirements sent by the whole ship controller, execute the relevant high-voltage DC input according to the network control signal, and convert it into ship-use low-voltage power supply for all low-voltage electrical equipment on the whole ship, and provide real-time feedback on the working status and fault status of the inverter conversion device.

[0039] The water cooling system segment performs cooling of the power battery and drive system according to the working flow and pressure sent by the execution end controller.

[0040] The instrument network segment serves as a feedback display terminal, interprets the information sent by the ship's controller, power battery, and drive system into relevant gear information, speed and torque information, power battery voltage, current, power, and the status of the entire ship for intuitive display, and integrates and feeds back the entire ship's fault information.

[0041] As the execution end, the push rod network segment sends the gear position signal and throttle opening signal to the whole ship controller through the network, and the whole ship controller makes judgments and performs subsequent execution operations.

[0042] The steering wheel network segment acts as the execution end and sends the steering signal to the whole ship controller through the network, and the whole ship controller makes a judgment and performs subsequent execution operations.

[0043] The network segment in the utility model is the communication construction, which is the communication between various systems, and the utility model adopts the CAN communication method.

[0044] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0045] In the description of this application, it should be noted that the terms "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They 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. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0046] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or vertical, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0047] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as within the protection scope of the present invention.

Claims

1. A single-drive marine electrical system, comprising a power battery pack (1), a drive motor (2) and a power battery high-voltage distribution cabinet (3), characterized in that: The power output end of the power battery pack (1) is connected to the power input end of the power battery high-voltage distribution cabinet (3), the signal end of the power battery pack (1) is communicatively connected to the signal end of the ship controller (4), the power input end of the drive motor (2) is connected to the power output end of the drive controller (5), the power input end of the drive controller (5) is connected to the power output end of the power battery high-voltage distribution cabinet (3), the signal end of the drive controller (5) is communicatively connected to the signal end of the ship controller (4), and the power output end of the power battery high-voltage distribution cabinet (3) is connected to the low The power supply input end of the low-voltage distribution box (7) is connected to the power supply input end of the ship controller (4), the power supply output end of the low-voltage distribution box (7) is connected to the power supply input end of the tilting motor (8), the steering motor (9), the power battery cooling water pump (10), the drive system cooling water pump (11), the cabin drainage pump (12) and the instrument (13), and the signal ends of the steering motor (9), the power battery cooling water pump (10), the drive system cooling water pump (11) and the instrument (13) are communicatively connected to the signal end of the ship controller (4).

2. The single-drive marine electrical system according to claim 1, characterized in that: The power battery high-voltage distribution cabinet (3) is externally connected to a direct current charging interface (6).

3. The single-drive marine electrical system according to claim 1, characterized in that: The marine controller (4) is externally connected to a key switch (14).

4. The single-drive marine electrical system according to claim 1, characterized in that: The control end of the marine controller (4) is connected to the controlled ends of the push rod (15) and the steering wheel (16), while the signal ends of the push rod (15) and the steering wheel (16) are communicatively connected to the signal end of the marine controller (4).

5. The single-drive marine electrical system according to claim 1, characterized in that: The input end of the ship controller (4) is connected to the output end of the angle sensor (17).

6. The single-drive marine electrical system according to any one of claims 1 to 5, characterized in that: The marine controller (4) is connected to the power battery pack (1), the drive controller (5), the steering motor (9), the power battery cooling water pump (10), the drive system cooling water pump (11), the instrument (13), the push rod (15) and the steering wheel (16) through CAN communication.

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