Power management system for a ship

Abstract

The utility model relates to a power management system for a ship, comprising at least one programmable logic control unit which is configured to receive related data from power supply equipment and electric equipment of the ship, determine state information of the power supply equipment and the electric equipment, automatically perform corresponding operation and send the related data, the state information and the operation information; a user can check related data, state information and operation information and perform operation control through the first client; at least one server configured to receive and store related data, state information, and operation information; a user can check related data, state information and operation information through the second client and perform operation control on the programmable logic control unit and the server, and the programmable logic control unit and the first client are interconnected with the server and the second client through an optical fiber ring network. Therefore, the power management system is simple in structure, and the manufacturing cost is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of ship, more particularly, relate to a power management system for ship. BACKGROUND

[0002] In modern ships, there are many power supply devices and electrical equipment, and power management systems are needed to distribute and manage electric energy. Power management systems can manage generators, engines, power distribution networks and loads, etc., to ensure that power demand is met while minimizing fuel consumption and maintenance costs.

[0003] However, the existing power management system of the ship mainly manages the power of large ships, so its structure is complex and the design cost is high. There is a large demand in the market for power management of small and medium-sized ships. If the existing ship power management system is applied to small and medium-sized ships, it is very expensive in terms of cost. The existing ship power management system has no competitiveness in the power management of small and medium-sized ships. SUMMARY

[0004] In view of the status and deficiencies of the prior art, the purpose of the utility model is to provide a power management system for ship. The power management system has a simple structure and is suitable for power management of small and medium-sized ships, saving manufacturing costs. At the same time, the programmable logic control unit, server and other components in the power management system are arranged in a redundant manner, ensuring the stability and safety of the system.

[0005] According to the embodiment of the utility model, provide a kind of for ship's power management system, ship includes power supply equipment and electric equipment, for ship's power management system includes: at least one programmable logic control unit, comprising: receiving module is configured to receive relevant data from the power supply equipment and electric equipment of ship;State information acquisition module is configured to obtain the state information of power supply equipment and electric equipment according to relevant data;Control module is configured to automatically carry out corresponding control operation to power supply equipment and electric equipment according to state information;And sending module is configured to send relevant data, state information and the operation information about the corresponding control operation of control module;First client, with at least one programmable logic control unit communication connection, user can view relevant data, state information and operation information and operate control at least one programmable logic control unit by first client;At least one server, with at least one programmable logic control unit communication connection, is configured to receive and store relevant data, state information and operation information from the sending module of at least one programmable logic control unit;And second client, with at least one server communication connection, user can view relevant data, state information and operation information and operate control at least one programmable logic control unit and at least one server by second client, wherein at least one programmable logic control unit and first client are interconnected with at least one server and second client by fiber ring network.

[0006] In the above manner, a ship power management system with simple structure and suitable for power management of small and medium-sized ships is provided, thereby saving manufacturing cost for users.

[0007] In the power management system for ship according to the utility model, at least one programmable logic control unit includes at least one programmable logic control unit pair, in each programmable logic control unit pair, two programmable logic control units are hot redundant programmable logic control units for each other.

[0008] By setting programmable logic control units that are hot redundant to each other, the stability and safety of the power management system in operation are ensured.

[0009] In the power management system for ship according to the utility model, the first client includes two local clients, and the two local clients are redundant clients for each other.

[0010] In the above manner, the stability of the power management system in operation is ensured.

[0011] In the power management system for ship according to the utility model, the at least one server includes two servers, and the two servers are hot redundant servers for each other.

[0012] By setting the servers as thermal redundancy, the stability and safety of the power management system are ensured.

[0013] In the power management system for the ship according to the utility model, the second client includes two remote clients, and the two remote clients are redundant clients of each other.

[0014] In the foregoing manner, the stability of the power management system is ensured.

[0015] In the power management system for the ship according to the utility model, the at least one programmable logic control unit is in communication connection with the first client through a cable.

[0016] In the foregoing manner, the rapid and safe transmission of data between the programmable logic control unit and the first client is ensured.

[0017] In the power management system for the ship according to the utility model, the at least one server is in communication connection with the second client through a cable.

[0018] In the foregoing manner, the rapid and safe transmission of data between the server and the second client is ensured.

[0019] In the power management system for the ship according to the utility model, the two programmable logic control units in the pair of programmable logic control units are in communication connection through an optical fiber.

[0020] In the foregoing manner, the interference of an external electromagnetic environment is avoided, and the rapid and safe transmission of data between the programmable logic control units is ensured.

[0021] In the power management system for the ship according to the utility model, the state information includes: power supply equipment state information about the power supply equipment; power consumption equipment state information about the power consumption equipment; failure information about the power supply equipment; and failure information about the power consumption equipment.

[0022] In the foregoing manner, a specific example of the state information is provided.

[0023] In the power management system for the ship according to the utility model, the power supply equipment state information includes at least one of the following: the number of the power supply equipment; the working state of the power supply equipment; the real-time values of the voltage, current and power parameters of the power supply equipment; the running time and running condition statistics of the power supply equipment; and the alarm information of the power supply equipment, and the power consumption equipment state information of the power consumption equipment includes at least one of the following: the number of the power consumption equipment; the working state of the power consumption equipment; the real-time values of the voltage, current and power parameters of the power consumption equipment; the running time and running condition statistics of the power consumption equipment; and the alarm information of the power consumption equipment.

[0024] The above methods provide specific examples of power supply equipment status information and power consumption equipment status information. Attached Figure Description

[0025] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0026] Figure 1 A schematic diagram of a power management system for ships according to the present invention is shown.

[0027] The reference numerals in the attached figures are as follows:

[0028] 1: Power management system for ships

[0029] 10: Programmable Logic Control Unit

[0030] 12: First Client

[0031] 14: Server

[0032] 16: Second Client

[0033] 101-104: Programmable Logic Control Unit

[0034] 121-122: Local Client

[0035] 141-142: Server

[0036] 161-162: Remote Client

[0037] C1-C6: Network connectivity devices

[0038] 18: Fiber optic ring network. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the protection scope of the present utility model.

[0040] This invention provides a power management system for ships. Figure 1 A schematic diagram of a power management system for ships is shown below. Figure 1 The present invention describes a power management system for ships.

[0041] like Figure 1 As shown, the power management system 1 for ships includes at least one programmable logic control unit 10, a first client 12, at least one server 14, and a second client 16.

[0042] Ships include various power supply and electrical equipment. Power supply equipment on board includes, but is not limited to: generators that generate electricity to power various equipment on board; battery packs that store electrical energy to provide backup power when generators stop operating or when additional power is needed; electric motors that drive various equipment on board, such as propellers and steering gear; and frequency converters that regulate the speed and current of electric motors to meet the power requirements of different equipment. Electrical equipment includes, but is not limited to: ship propulsion systems that provide propulsion for the ship; communication systems for communication between the ship and the outside world; navigation systems; safety systems for alarms, survival, and emergency lighting; living facilities including air conditioners, refrigerators, water heaters, and kitchen appliances; and lighting systems.

[0043] A Programmable Logic Control Unit (PLC) is a computer control system used to control production processes and automation systems. PLCs are programmable and can control various industrial equipment and machines according to user needs and programs.

[0044] At least one programmable logic control unit 10 may include a receiving module, a status information acquisition module, a control module, and a transmitting module. For example, at least one programmable logic control unit 10 may be an S7-410-5H type programmable logic control unit, which is a high-performance PLC suitable for small and medium-sized industrial automation control systems.

[0045] The receiving module is configured to receive relevant data from the ship's power supply and electrical equipment.

[0046] These relevant data include, but are not limited to, the following: Power data: Output power of power supply equipment; Power consumption of electrical equipment; Total power demand and supply; Power factor. Voltage data: Output voltage of power supply equipment; Input voltage of electrical equipment; Voltage stability and fluctuation. Current data: Output current of power supply equipment; Current consumption of electrical equipment; Current stability and fluctuation. Frequency data: Operating frequency of power supply equipment; Operating frequency of electrical equipment. Energy consumption data: Energy consumption of electrical equipment; Total energy consumption; Energy efficiency. Temperature data: Temperature of power supply equipment; Temperature of electrical equipment; Ambient temperature. Fault and alarm data: Fault and alarm information of power supply equipment; Fault and alarm information of electrical equipment; System fault and alarm information. Operating time and cycle data: Operating time and cycle of power supply equipment; Operating time and cycle of electrical equipment. Maintenance and repair data: Maintenance and repair records of power supply equipment; Maintenance and repair records of electrical equipment. Environmental data: Emission data (e.g., CO2, NO). x (etc.); noise data; various logs of power supply equipment and electrical equipment, etc.

[0047] The status information acquisition module is configured to acquire the status information of the power supply equipment and power consumption equipment based on relevant data received from the ship's power supply equipment and power consumption equipment. Specifically, the status information acquisition module is configured to perform model calculations based on the relevant data received from the ship's power supply equipment and power consumption equipment to obtain the status information of the power supply equipment and power consumption equipment.

[0048] The status information here may include, but is not limited to, status information about the power supply equipment, status information about the power consumption equipment, and fault information about the power supply equipment.

[0049] The status information of power supply equipment may include, but is not limited to, at least one of the following: the name and model of the power supply equipment; the quantity of the power supply equipment; the working status of the power supply equipment (on, off, fault, etc.); the real-time values ​​of the voltage, current, and power parameters of the power supply equipment; the operating time and operating status statistics of the power supply equipment; environmental information such as temperature and humidity of the power supply equipment; alarm information and fault diagnosis information of the power supply equipment, etc.

[0050] The status information of electrical equipment may include, but is not limited to, at least one of the following: the name and model of the electrical equipment; the quantity of the electrical equipment; the working status of the electrical equipment (on, off); the real-time values ​​of the voltage, current, and power parameters of the electrical equipment; the working mode of the electrical equipment; the running time and running status statistics of the electrical equipment; and the alarm information of the electrical equipment.

[0051] The control module is configured to automatically perform corresponding operations on the power supply equipment and the power consumption equipment based on the status information of the power supply equipment and the power consumption equipment obtained by the status information acquisition module.

[0052] Specifically, for example, when the status information acquisition module detects that the power provided by the current generator is insufficient to power the ship's electrical equipment, it sends this status information indicating the situation to the control module. The control module then increases the number of generators on board based on this status information to provide more power. As another example, when the status information acquisition module detects a fault in the ship's galley power supply circuit, it sends this fault information to the control module. The control module then promptly disconnects the faulty circuit to prevent it from affecting other power supply circuits on the ship.

[0053] The sending module is configured to send the aforementioned relevant data, status information, and operation information regarding the corresponding operations performed by the control module.

[0054] At least one programmable logic control unit 10 may include at least one pair of programmable logic control units, in which the two programmable logic control units are each other’s hot-redundant programmable logic units.

[0055] exist Figure 1 The diagram illustrates at least one programmable logic control unit (PLC) 10 comprising two PLC pairs. The first PLC pair includes PLCs 101 and 102, which are thermally redundant, and the second PLC pair includes PLCs 103 and 104, which are thermally redundant. PLCs 101 and 102 are interconnected via optical fiber, as are PLCs 103 and 104. Because the two PLCs in each PLC pair are thermally redundant, this means that during normal system operation, both PLCs operate simultaneously. If one PLC fails, the other automatically takes over, ensuring uninterrupted operation and providing higher reliability and fault tolerance for the system.

[0056] The first client 12 can communicate with at least one programmable logic control unit (PLC) 10. Users can view, through the first client 12, relevant data on the power supply and power consumption equipment received by the receiving module of at least one PLC 10, status information on the power supply and power consumption equipment acquired by the status information acquisition module, and operation information (e.g., operation logs) regarding the corresponding control operations performed by the control module. The first client 12 can also operate and control at least one PLC 10 through its user interface. For example, when the ship is in a harsh external environment, if the user wants to increase the power supply to the ship for unforeseen circumstances, the user can manually start one or more generators on the user interface of the first client 12 to provide sufficient power to the ship. This is merely a specific example of a user manually intervening in the power supply equipment through the first client 12; the present invention is not limited to this, and users can intervene in any possible way on the ship's equipment through the first client 12.

[0057] The first client 12 can be a local client, such as an all-in-one operator station, which is interconnected with at least one programmable logic control unit 10 via cable communication. To ensure communication stability and security, the cable communication interconnection between the first client 12 and the at least one programmable logic control unit 10 is implemented using a dual-cable system. In the dual-cable system, one cable serves as the main cable, and the other as a backup cable. When the main cable fails, communication between the first client 12 and the at least one programmable logic control unit 10 is maintained through the backup cable.

[0058] The first client 12 may include two redundant local clients 121 and 122. One client acts as the primary client, and the other as a backup client. If the primary client fails, the user can continue working using the backup client, thus ensuring system stability and security. Local client 121 communicates with programmable logic control unit 101 via a network connection device C1 (e.g., a switch) using a two-cable connection. Local client 122 communicates with programmable logic control unit 102 via a network connection device C2 using a two-cable connection. Programmable logic control units 103 and 104 communicate with each other via a network connection device C3.

[0059] At least one server 14 is communicatively connected to at least one programmable logic control unit 10. The at least one server 14 is configured to receive and store the aforementioned related data, status information, and operational information from the transmitting module of the at least one programmable logic control unit 10. The at least one server 14 may be an operating system server (OS server), which is typically used to build various services such as network servers, database servers, and application servers. Common operating system servers include Windows servers and Linux servers.

[0060] exist Figure 1 In this system, at least one server 14 includes two servers 141 and 142, which are hot-redundant servers for each other. Because the two servers are hot-redundant, it means that when the system is running normally, both servers work simultaneously. If one server fails, the other server will automatically take over its work, ensuring that the work is not interrupted. This provides the system with higher reliability and fault tolerance.

[0061] The second client 16 is communicatively connected to at least one server 14. Users can view the aforementioned relevant data, status information, and operational information stored on at least one server 14 through the second client 16, and can also control the operation of at least one programmable logic control unit 10 and at least one server 14. For example, when a ship is in a harsh external environment and the user wishes to increase the ship's power supply for unforeseen circumstances, the user can manually start one or more generators on the operating interface of the second client 16 to provide sufficient power to the ship.

[0062] The second client 16 may include two redundant remote clients 161 and 162. One client acts as the primary client, and the other as a backup client. If the primary client fails, the user can continue working using the backup client, thus ensuring system stability and security. For example, remote clients 161 and 162 can be operating system clients (OS clients), such as Windows, Mac OS, and Linux.

[0063] exist Figure 1 In this configuration, remote client 161 is connected to the same network connection device C4 via a two-cable connection and server 141 is connected via a three-cable connection, thereby establishing a communication connection between remote client 161 and server 141. Remote client 162 is connected to network connection device C5 via a two-cable connection, and server 142 is connected to network connection device C6 via a three-cable connection.

[0064] At least one programmable logic control unit 10 and a first client 12 are interconnected with at least one server 14 and a second client 16 via network devices C1 to C6 through an optical fiber ring network 18.

[0065] exist Figure 1 The diagram shows two local clients 121 and 122 directly connected to programmable logic control units 101 and 102 in the first programmable logic control unit pair, and two remote clients 161 and 162 directly connected to servers 141 and 142, respectively. However, this invention is not limited to this. In fact, the two local clients 121 and 122 and the two remote clients 161 and 162 can be located anywhere on the fiber optic ring network 18. Furthermore, in Figure 1 The number of programmable logic control units, clients, and servers shown is merely exemplary, and this invention is not limited thereto. The number of the above components may be increased or decreased according to actual needs.

[0066] The power management system for ships according to this invention has a simple structure, is suitable for power management of small and medium-sized ships, and saves manufacturing costs. Furthermore, the programmable logic control unit, server, and other components in this power management system employ redundant configurations to ensure system stability and security.

[0067] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A power management system (1) for a ship, the ship including power supply equipment and electrical equipment, characterized in that, The power management system (1) for ships includes: At least one programmable logic control unit (10), comprising: The receiving module is configured to receive relevant data from the power supply equipment and the electrical equipment of the vessel; The status information acquisition module is configured to acquire the status information of the power supply equipment and the power consumption equipment based on the relevant data. The control module is configured to automatically perform corresponding control operations on the power supply equipment and the power consumption equipment based on the status information; and The sending module is configured to send the relevant data, the status information, and operation information regarding the corresponding control operations performed by the control module; The first client (12) is communicatively connected to the at least one programmable logic control unit. The user can view the relevant data, the status information and the operation information through the first client and perform operation control on the at least one programmable logic control unit. At least one server (14), communicatively connected to the at least one programmable logic control unit, is configured to receive and store the relevant data, the status information, and the operation information from the transmitting module of the at least one programmable logic control unit; and The second client (16) is communicatively connected to the at least one server. The user can view the relevant data, the status information, and the operation information through the second client, and perform operation control on the at least one programmable logic control unit and the at least one server. The at least one programmable logic control unit (10) and the first client (12) are interconnected with the at least one server (14) and the second client (16) via an optical fiber ring network (18).

2. The power management system (1) for ships according to claim 1, characterized in that, The at least one programmable logic control unit (10) includes at least one pair of programmable logic control units (101, 102, 103, 104), wherein in each pair of programmable logic control units, the two programmable logic control units are hot-redundant programmable logic control units of each other.

3. The power management system (1) for ships according to claim 1, characterized in that, The first client (12) includes two local clients (121, 122), which are redundant clients of each other.

4. The power management system (1) for ships according to claim 1, characterized in that, The at least one server (14) includes two servers (141, 142), which are each other's hot redundancy servers.

5. The power management system (1) for ships according to claim 1, characterized in that, The second client (16) includes two remote clients (161, 162), which are redundant clients of each other.

6. The power management system (1) for ships according to claim 1, characterized in that, The at least one programmable logic control unit (10) is connected to the first client (12) via a cable.

7. The power management system (1) for ships according to claim 1, characterized in that, The at least one server (14) is connected to the second client (16) via a cable.

8. The power management system (1) for ships according to claim 2, characterized in that, Two of the programmable logic control units (101, 102, 103, 104) are connected via optical fiber communication.

9. The power management system (1) for ships according to claim 1, characterized in that, The status information includes: Regarding the power supply equipment status information of the aforementioned power supply equipment; Regarding the status information of the electrical equipment; Fault information regarding the power supply equipment; and Information regarding the faults of the aforementioned electrical equipment.

10. The power management system (1) for ships according to claim 9, characterized in that, The power supply equipment status information includes at least one of the following: The number of power supply devices; Operating status of power supply equipment; Real-time values ​​of voltage, current, and power parameters of the power supply equipment; Statistics on the operating time and status of power supply equipment; as well as Alarm information from power supply equipment The electrical equipment status information of the electrical equipment includes at least one of the following: The number of electrical appliances; The operating status of electrical equipment; Real-time values ​​of voltage, current, and power parameters of electrical equipment; Statistics on the operating time and status of electrical equipment; as well as Alarm information from electrical equipment.

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