An integrated ship electric energy management system based on internet of things

Abstract

The application relates to the field of ship energy centralized management technology, in particular to a comprehensive ship electric energy management system based on the Internet of Things, which comprises a front-end power generation module, an electric power algorithm module, a control management module, a front-end monitoring module and a man-machine interaction module; the front-end power generation module converts wind energy into electric energy, converts heat energy generated by diesel engine work into electric energy and converts mechanical energy output by the diesel engine into electric energy; the front-end power generation module is connected to a power grid and delivers electric power to the power grid; the electric power algorithm module monitors electric power output of a wind flow power generation unit, a low-temperature waste heat unit and a shaft power generation unit, collects and analyzes stored electric energy of the front-end power generation module; the front-end monitoring module is used for monitoring electric power generation; and the control management module adjusts electric power flowing into the power grid according to fitting and analysis results. The application has the effect of reducing additional energy consumption of the ship and maintaining overall electric energy efficiency of the ship in an optimal range.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of ship energy centralized management technology, and particularly relates to a comprehensive ship electric energy management system based on Internet of Things. BACKGROUND

[0002] At present, most of the ships use diesel engines as the driving main engine of the ship, and the diesel engine directly drives the propeller to provide propulsion for the ship; the diesel generator set generates electricity by burning oil to provide the required power for the ship navigation.

[0003] With the increasing attention of the ship industry to renewable energy and low-carbon development, shaft generator, low-temperature waste heat power generation system, wind turbine and other clean renewable energy devices are widely used in the field of ships. The diesel engine is no longer the only source of energy for the power supply and driving of the ship. However, due to the limitations of technology, the above-mentioned energy sources face problems such as insufficient optimization of energy management system, insufficient stability of the system, insufficient safety of the system, and the like, which are very prominent in the aspect of ship energy consumption.

[0004] The above problems are specifically embodied in that when the ship is equipped with the above-mentioned clean energy devices, the energy system of the ship becomes more complex, and the balance between the power generation of various energies and the demand of various loads needs to be considered comprehensively; the failure of clean energy devices not only affects the power generation efficiency, but also may cause the failure of other devices in the power grid, bringing safety problems; the generation of wind energy, solar energy and other energies is greatly affected by weather and environmental factors, and has intermittency and instability, which increases the difficulty in energy deployment.

[0005] Therefore, under the condition of installing new clean energy devices, it is necessary to establish a ship electric energy management system to adapt to the above-mentioned ship power distribution, energy consumption management, centralized unified monitoring and management of equipment use, and reasonable distribution of power according to the specific energy consumption of the equipment on the ship. SUMMARY

[0006] In order to reduce the additional energy consumption of the ship and maintain the overall electric energy efficiency of the ship within the optimal range, the present application provides a comprehensive ship electric energy management system based on Internet of Things.

[0007] The comprehensive ship electric energy management system based on Internet of Things provided by the present application adopts the following technical scheme:

[0008] A comprehensive ship electric energy management system based on Internet of Things, comprising: a front-end power generation module, a power algorithm module, a control management module, a front-end monitoring module and a man-machine interaction module.

[0009] The front-end power generation module comprises a wind power generation unit, a low-temperature waste heat unit, a shaft power generation unit and a plurality of storage batteries, the wind power generation unit comprises a wind power generation assembly for converting wind energy into electric energy, the low-temperature waste heat unit is connected to a diesel engine for converting heat energy generated by the diesel engine into electric energy, and the shaft power generation unit comprises a shaft generator for converting mechanical energy output by the diesel engine into electric energy; the front-end power generation module is connected to a power grid for transmitting electric power to the power grid;

[0010] The electric power algorithm module is arranged between the power grid and the front-end power generation module for monitoring electric power output of the wind power generation unit, the low-temperature waste heat unit and the shaft power generation unit, collecting and analyzing stored electric power of the front-end power generation module, and uploading monitoring data and analysis results to the control management module;

[0011] The front-end monitoring module is used for monitoring electric power generation of the wind power generation unit, the low-temperature waste heat unit and the shaft power generation unit, and transmitting monitoring data to the control management module in real time;

[0012] The control management module is connected to the front-end power generation module, the electric power algorithm module and the front-end monitoring module, receives monitoring data of the electric power algorithm module and the front-end monitoring module, and fits an electric power curve and analyzes an electric power conversion rate in real time according to the monitoring data; the control management module adjusts electric power flowing into the power grid according to fitting and analysis results.

[0013] The man-machine interaction module is connected to the control management module, displays control instructions, calculation results and fitted curves of the control management module, and a ship management personnel manually enters control instructions through the man-machine interaction module.

[0014] By using the above technical solution, the clean energy device is a wind power generation device using high-speed airflow of sea wind and waves, a shaft generator using mechanical energy of a main shaft of a ship driven by a diesel engine on the ship, and a high-speed permanent magnet synchronous generator using heat energy generated by the diesel engine, so that mechanical energy and heat energy originally wasted on the ship are collected and converted into electric energy for use of the ship.

[0015] The power transmitted to the power grid needs to adapt to the load in the power grid, so the above-mentioned wind power generation device, shaft generator and high-speed permanent magnet synchronous generator are provided with a front-end monitoring module to monitor the power generation in real time. For example, the speed of the wind blade of the wind power generation device, the speed of the main output shaft of the diesel engine and the heat value of the diesel engine can be measured to obtain the energy conversion rate. This requires the front-end monitoring module and the control management module to maintain real-time signal transmission, and the monitoring information is sent to the control management module in real time for data calculation and analysis. In addition to the monitoring data of the front-end monitoring module, the monitoring data of the power algorithm module is also one of the data analysis sources of the control management module. The power algorithm module is arranged between the front-end power generation modules, monitors the power flowing into the power grid from the front-end power generation modules, that is, the power in use, and calculates the real conversion rate of the power according to the use and generation of the power, including the utilization rate of the electric energy, the wind power conversion rate, the thermal power conversion rate, the mechanical-electric conversion rate, and the like. The conversion rate is fitted into a curve for direct observation by the ship management personnel. Under normal circumstances, the conversion rate should tend to be stable and remain above 50%.

[0016] Optionally, the front-end monitoring module comprises a power generation monitoring unit, a power grid monitoring unit and a power monitoring unit.

[0017] The power generation monitoring unit is connected to the front-end power generation module and monitors the power generation of the front-end power generation module, and sends the monitoring result to the control management module.

[0018] The power monitoring unit monitors the fuel quantity and kinetic energy efficiency of the diesel engine in the ship and sends the monitoring result to the control management module.

[0019] The power grid monitoring unit monitors the load of the power grid in the ship and sends the monitoring result to the control management module.

[0020] The control management module is connected to the diesel engine, calculates and analyzes the monitoring data of the power grid monitoring unit, controls the operation of the diesel engine and controls the power input of the power grid.

[0021] By adopting the above technical solution, the front-end monitoring module can monitor the load in the power grid in addition to monitoring the power generation of the front-end power generation module. Under the real-time signal transmission of the front-end monitoring module and the control management module, the control management module adjusts the power flowing into the power grid in real time according to the real-time change of the load, so that the power flowing into the power grid always adapts to the load of the ship.

[0022] The condition that the power of the ship power grid adapts to the load of the ship is the condition that the electric energy efficiency of the ship is maximum and the additional energy consumption is minimum. By monitoring various clean energy power generation devices and the power grid, the overall electric energy efficiency of the ship is maintained within the optimal range.

[0023] In addition, the power monitoring unit tracks fuel consumption in real time, and the control management module controls and manages the fuel consumption according to the principle of zero carbon consumption, and tries to reduce the fuel consumption as much as possible. For example, a wind propulsion system is installed on the deck of the ship. When the wind direction allows, the ship is propelled forward by the wind propulsion system in the sailing area. For example, when the load is small and the speed requirement is slow, the diesel engine can be stopped, and the power of the ship is completely changed to the power generated by the front-end power generation module.

[0024] Optionally, the front-end power generation module includes a plurality of groups of storage batteries, and the plurality of groups of storage batteries are arranged between the wind power generation unit and the power grid, between the low-temperature waste heat unit and the power grid, and between the shaft power generation unit and the power grid, and store power or provide power to the power grid.

[0025] By adopting the above technical solution, the electric energy converted by the wind power generation unit, the low-temperature waste heat unit and the shaft power generation unit flows into the power grid through the storage battery. The control management module can control the charging and discharging state of the battery. When the load is large, that is, the power demand increases, the storage battery discharges, and the electric energy generated by the wind power generation unit, the low-temperature waste heat unit and the shaft power generation unit is directly supplied to the power grid. When the load is small, the power demand decreases, and the storage battery is changed to a charging state. The electric energy generated by the above units flows into the storage battery. When the load is large, the storage battery is changed to a discharging state again.

[0026] In addition to the change of the load, the state of the storage battery can also be changed according to the change of the generated power. For example, the wind is strong, the speed of the wind blade in the wind power generation device is fast, and the wind power generation is large in a certain period of time, which is greater than the power supply in the power grid. The control management module can store the excess power by changing the state of the storage battery. The electric energy of the low-temperature waste heat unit and the shaft power generation unit can also be stored.

[0027] In summary, the control management module can determine the storage and release of the electric energy according to the supply and demand relationship of the electric energy in the current system, and realize the monitoring and adjustment of the electric energy.

[0028] Optionally, it also includes;

[0029] a thermal energy storage unit, the thermal energy storage unit is connected with the low-temperature waste heat unit, the control management module and the diesel engine, receives the instruction of the control management module, stores the thermal energy of the diesel engine, and releases the thermal energy to the low-temperature waste heat unit.

[0030] By adopting the above technical solution, the thermal energy storage unit is a heat source for the low-temperature waste heat unit. The diesel engine is a driving device for driving the ship to sail. The diesel engine outputs fuel to convert thermal energy into mechanical energy. The conversion rate of the diesel engine is only about 50%, which makes most of the heat lost during the work of the diesel engine. The thermal energy storage unit absorbs the thermal energy generated by the work of the diesel engine and supplies it to the low-temperature waste heat unit. The low-temperature waste heat unit converts the thermal energy into electric energy.

[0031] The thermal energy storage unit is controlled and managed by the control management module and monitored by the power monitoring unit, and after the power monitoring unit detects that the heat of the diesel engine is fully absorbed, the thermal energy storage unit is directly connected to the low-temperature waste heat unit to enable the low-temperature waste heat unit to absorb thermal energy and convert it into electric energy.

[0032] Optionally, it further comprises;

[0033] An environment monitoring module is arranged to monitor weather information such as temperature and wind speed in the navigation area of the ship, and send the monitoring information to the control management module, and the control management module analyzes and predicts the environmental conditions according to the monitoring information and displays the information through the man-machine interaction module.

[0034] By using the above technical scheme, the environment monitoring module is mainly used for real-time monitoring of the weather conditions and environmental information in the navigation area, and predicting the weather conditions in the future for a certain period of time, which can achieve three effects; first, it can help the living personnel on the ship to predict the weather conditions in advance, such as temperature rise and fall; second, it can help the working personnel on the ship to respond to the extreme weather, thereby improving the safety of navigation; and third, it can help the management personnel on the ship to analyze the wind power generation device relying on weather power generation in advance, predict the rise and fall of wind power generation in the future for a certain period of time, and make preparations in advance.

[0035] Optionally, the control management module comprises a data processing unit and a logic control unit.

[0036] The data processing unit receives the collected information of the power algorithm module, the front-end monitoring module and the environment monitoring module, classifies, analyzes and calculates the information according to the modules, and sends the results to the logic control unit.

[0037] The logic control unit generates instructions according to the monitoring results of the data processing unit.

[0038] By using the above technical scheme, the control management module is divided into a data processing unit and a logic control unit, the data processing unit is used for processing data, and the logic control unit is used for generating instructions, one unit is used for processing the monitoring data of the front-end monitoring module and the power algorithm module, after analyzing the utilization of each kind of energy and the load power consumption, the electric energy efficiency curve is fitted, according to the principle of "peak clipping and valley filling", after the data processing unit obtains the analysis result of low electric energy efficiency utilization rate, the logic control unit starts the storage function of the storage battery, and the unused electric energy is stored to improve the electric energy utilization rate, and when the electric energy utilization efficiency is too high and the power grid electric energy is insufficient, the logic control unit starts the discharging function of the storage battery to discharge the power grid.

[0039] Optionally, it further comprises;

[0040] The wireless module comprises a GPS positioning module, a private network communication module and a satellite communication module, and is used for satellite positioning of the ship, data transmission between the ship and a land management company, signal transmission and reception, instruction transmission and the like, and internal and external network login of the personnel inside the ship.

[0041] Optionally, the network information platform is established based on a server of the man-machine interaction module.

[0042] The wireless module further comprises a 4 / 5G module and a WIFI module; the personnel inside the ship connect to the network through the 4 / 5G module and the WIFI module, log in the internal network of the ship, and after identity verification, can log in the network information platform through a mobile terminal, use the mobile terminal to log in, and issue an instruction to the logic control unit through the man-machine interaction module.

[0043] By adopting the above technical solution, the wireless module provides multiple network service channels, including GPS satellite positioning service by using the Beidou positioning system, private network communication, instruction transmission and reception between the ship and the land ship management company, safety communication and the like.

[0044] Firstly, the ship company can transmit data to the ship management company through the network communication channel, including daily records of the personnel inside the ship, control instructions inside the ship, a route and a route optimization result, operation conditions of each motor inside the ship and the like, and supports remote monitoring of the ship by the land ship management company; in an emergency, the ship can quickly send a distress signal through the private network communication to obtain timely rescue.

[0045] Secondly, the wireless module can provide an online channel for the crew, and through connection to the internal local area network of the ship, communication between the personnel inside the ship is facilitated, and daily life of the crew is more enriched.

[0046] Thirdly, the wireless module is used to establish a network information platform with the server inside the ship; the crew can input their own safety information and health data through the network information platform, and realize diversification, convenience and order of ship management; secondly, the network information platform provides a function of remotely issuing an instruction through the network; after identity verification of the management personnel, the management personnel can remotely control each system inside the ship; when the ship encounters an emergency, the ship management personnel can effectively issue a safety instruction. BRIEF DESCRIPTION OF DRAWINGS

[0047] Figure 1 is a whole system logic diagram of the embodiment of the application.

[0048] Figure 2 is a circuit diagram of the embodiment of the application for highlighting the front-end power generation module.

[0049] BRIEF DESCRIPTION OF DRAWINGS 1, power grid; 11, front-end power generation module; 111, wind power generation unit; 112, low-temperature waste heat unit; 113, shaft power generation unit; 114, battery; 115, inverter; 12, contactor; 2, power algorithm module; 3, power grid monitoring unit; 4, power generation monitoring unit; 5, power monitoring unit; 6, control management module; 61, data processing unit; 62, logic control unit; 7, diesel engine; 71, thermal energy storage unit; 8, environmental monitoring module; 9, human-computer interaction module; 91, network information platform; 92, wireless module. DETAILED DESCRIPTION

[0050] The following will be described in detail with reference to the accompanying drawings Figures 1-2 The present application is further described in detail.

[0051] The embodiment of the present application discloses a comprehensive ship electric energy management system based on Internet of Things. Referring to Figure 1 A comprehensive ship electric energy management system based on Internet of Things comprises a front-end power generation module 11, a front-end monitoring module, a power algorithm module 2, a thermal energy storage unit 71, an environmental monitoring module 8, a human-computer interaction module 9, and a wireless module 92.

[0052] Referring to Figure 1 With Figure 2 The front-end power generation module 11 comprises a wind power generation unit 111, a low-temperature waste heat unit 112, and a shaft power generation unit 113. The wind power generation unit 111 is arranged on the ship and converts mechanical energy into electric energy according to the rotation of the wind blade. The low-temperature waste heat unit 112 converts thermal energy into mechanical energy and then into electric energy. The shaft power generation unit 113 is connected to the driving main shaft of the ship. For the convenience of understanding, the low-temperature waste heat unit 112 and the shaft power generation unit 113 are described as follows. The low-temperature waste heat unit 112 mainly adopts the form of organic Rankine cycle. Organic working medium is arranged to flow in the organic Rankine cycle. The organic working medium absorbs the thermal energy lost by the diesel engine 7 and expands and vaporizes. The gaseous organic working medium does work and cools in the expander. The cooled organic working medium absorbs heat and heats up again. Thus, the cycle is repeated. The thermal energy is converted into mechanical energy by the expander. If the expander is directly connected to a magnetic suspension motor, such as a high-speed permanent magnet generator, the mechanical energy is converted into electric energy. The shaft power generation unit utilizes the rotation of the diesel engine 7. The rotor is arranged on the main shaft of the ship. Except for the frictional energy consumption, part of the energy generated by the fuel of the diesel engine 7 is converted into thermal energy lost by the low-temperature waste heat unit 112 to generate electricity. Another part of the energy is converted into mechanical energy to drive the rotation of the main shaft, drive the rotation of the propeller at the end of the main shaft, and drive the ship. The shaft power generation unit converts the mechanical energy into electric energy by utilizing the rotation of the main shaft.

[0053] Referring toFigure 1 The control management module 6 is the central control unit in the system, which includes a data processing unit 61 and a logic control unit 62. The data processing unit 61 receives, classifies, calculates, processes and analyzes data. The logic control unit 62 is generated according to the instructions of the data processing unit 61. In general, the data processing unit 61 can select a digital signal processor (DSP), and the logic control unit 62 can select a PID logic algorithm unit.

[0054] With reference to Figure 1 The wind power generation unit 111, the low-temperature waste heat unit 112 and the shaft power generation unit 113 are all connected with the storage battery 114, the storage battery 114 is connected with the inverter 115, and the inverter 115 is connected to the power grid 1. The inverter 115 is connected with the control management module 6, and the control management module 6 sends instructions to the inverter 115 and the storage battery 114 to change the charging and discharging state of the storage battery 114. In this embodiment, considering the actual situation, the internal power system of the ship is stable output, usually using three-phase alternating current. The storage capacity in the storage battery 114 is converted to three-phase alternating current through the inverter 115 and / or frequency converter, and the voltage and current flowing into the power grid 1 are accurately controlled. Not only the storage battery 114, but also the wind power generation, low-temperature waste heat generation and shaft power generation need to be adjusted by the inverter 115 when the power is directly supplied to the power grid 1 load.

[0055] With reference to Figure 1 And Figure 2 Based on the above clean energy power generation device, in order to match the load and power input of the power grid 1 and control the switching time of the storage battery 114, the load of the power grid 1, the power input of the power grid 1 and the power generation of the front-end power generation module 11 are all set with corresponding monitoring modules in this embodiment.

[0056] With reference to Figure 1The front-end monitoring module is used to monitor the power generation of each unit in the front-end power generation module 11 and the load status of the power grid 1. The front-end monitoring module includes a power grid monitoring unit 3 and a power generation monitoring unit 4. The power grid monitoring unit 3 is usually installed in the distribution box of the ship's internal power grid 1 system to monitor the load status of each circuit. The power generation monitoring unit 4 is usually installed between the battery 114 and each power generation component. For example, it is installed between the wind power generation component and the battery 114 to collect data such as the speed of the wind turbine blades and the value of the generated current. Alternatively, it can be installed at the expander and high-speed permanent magnet generator of the organic Rankine cycle system to collect data such as the current generation. Information, such as that set between the shaft generator and the battery 114, monitors the current generation of the shaft generator and the rotational speed of the ship's main shaft; the power grid monitoring unit 3 and the power generation monitoring unit 4 send the monitoring data to the data processing unit 61. The data processing unit 61 can calculate the wind power conversion rate based on the wind turbine speed and current value, and can calculate the shaft generator efficiency based on the shaft speed and power generation. The logic control unit 62 connects each battery 114 and the inverter 115 through the RS485 bus, and adjusts the state of the battery 114 and controls the inverter 115 according to the calculation data of the data processing unit 61.

[0057] Reference Figure 1 and Figure 2 A contactor 12 is installed between the inverter 115 and the power grid 1 to control the on / off of power transmission between the front-end power generation module 11 and the power grid 1. The contactor 12 acts as a switch. The contactor 12 is connected to the logic control unit 62 and is controlled by the logic control unit 62.

[0058] Reference Figure 1 When the power generated by the wind power generation unit 111, the low-temperature waste heat unit 112, and the shaft-driven power generation unit 113 flows directly into the power grid 1, the power generated by the front-end power generation module 11 is approximately equal to the amount of electricity entering the power grid 1. However, in most cases, the charging and discharging of the battery 114 causes the power generated to not be equal to the amount of electricity entering the power grid 1 in real time. Therefore, it is necessary to set up a power algorithm module 2 to monitor the current inflow into the power grid 1, and the current inflow into the power grid 1 needs to be adapted to the load of the power grid 1. In this embodiment, a power algorithm module 2 is set between the front-end power generation module 11 and the power grid 1 to count the current inflow into the power grid 1. The power algorithm module 2 is connected to the data processing unit 61 and sends the data statistics results to the data processing unit 61, so that the logic control unit 62 can adjust the output power of the inverter 115 in real time according to the changes in the load in the power grid 1.

[0059] Reference Figure 1, the diesel engine 7 is provided with a heat energy storage unit 71, the heat energy storage unit 71 is used for storing heat which should be dissipated in the working process of the diesel engine 7, and the heat energy storage unit 71 delivers heat to the low-temperature waste heat unit 112; in the embodiment, the heat energy storage unit 71 can be in the form of water circulation, and in actual conditions, in order to protect the output cylinder of the diesel engine 7 in high temperature, a cylinder jacket is arranged outside each output cylinder, and the cylinder jacket is filled with heat-absorbing protective cold water, that is, jacket water; in the working process of the diesel engine 7, the jacket water absorbs heat generated by the diesel engine 7 to rise in temperature, the jacket water in the heat energy storage unit 71 flows to the organic working medium of the organic Rankine cycle in the low-temperature waste heat unit 112, the organic working medium is heated through a heat exchange process, the jacket water cools and flows back to the cylinder jacket. The heat energy storage unit 71 is connected to the logic control unit 62, and the above-mentioned circulation process of the jacket water is started under the instruction of the logic control unit 62.

[0060] With reference to Figure 1 , according to the above process, the diesel engine 7 is provided with a power monitoring unit 5, the power monitoring unit 5 is connected to the data processing unit 61, the power monitoring unit 5 monitors the fuel condition of the diesel engine 7 and the water temperature of the jacket water in the heat energy storage unit 71, and sends the monitoring condition to the data processing unit 61; the data processing unit 61 sends a signal to the logic control unit 62 according to the fuel quantity and the water temperature, the output power of the diesel engine 7 can be reduced when the fuel quantity is too high, the front-end power generation module 11 is used to compensate in terms of power supply, and the logic control unit 62 controls the heat energy storage unit 71 to start the water circulation when the water temperature meets the standard.

[0061] With reference to Figure 1 , in the embodiment, the ship power management system further comprises an environment monitoring module 8, the environment monitoring module 8 monitors weather information in a navigation area, and the data processing unit 61 calls the weather monitoring condition of the environment monitoring module 8 to make real-time analysis and prediction on environmental parameters such as temperature, seawater temperature, wind speed and sunshine intensity in the navigation area, which affect wind power generation and crew life.

[0062] With reference to Figure 1 , the man-machine interaction module 9 is used for displaying monitoring data of the front-end monitoring module, real-time power generation power of the front-end power generation module 11, charge and discharge states of the storage battery 114, states of the contactor 12 and current statistical data of the power algorithm module 2, and has a display function; the man-machine interaction module 9 is usually arranged in a captain's room or a bridge room of the ship, and in addition to the display function, the man-machine interaction module 9 can also be used for entering instructions by the ship management personnel to control the operation of the diesel engine 7, the plurality of contactors 12 connected to the front-end power generation module 11, the inverter 115 and the like through the logic control unit 62.

[0063] With reference to Figure 1The wireless module 92 is used for communication between the ship and the outside world, including communication between the ship and the shore base station, and communication between the ship and the land management company. In the embodiment, the wireless module 92 includes a GPS positioning module for ship satellite positioning, which obtains accurate latitude and longitude coordinates by relying on the Beidou satellite positioning system and displays the coordinates through the human-computer interaction module 9; includes a special network communication module for emergency communication through the maritime satellite, when an emergency occurs, the ship manager uses the maritime satellite special network communication channel to send a distress signal to the coast guard or the land ship management company through the human-computer interaction module 9, and obtains timely rescue; includes a 4 / 5G mobile communication module and a WIFI module, which are used for daily communication of the crew on the ship, or for logging into the network information platform 91 through the intranet.

[0064] The main function of the network information platform 91 should be to facilitate the ship manager to control the power grid 1 in the ship, and when it is night or the ship manager is not in the driver's room or the captain's room, the ship manager can directly control the power grid 1 by logging into the network information platform 91 through the mobile terminal.

[0065] For the convenience of illustration, the control lines of the logic control unit 62 are in red in the figure.

[0066] The implementation principle of the comprehensive ship electric energy management system based on the Internet of Things in the embodiment of the application is as follows: the front-end monitoring device is used to monitor the load in the power grid 1 and the power in the front-end power generation module 11, the data processing unit 61 analyzes and summarizes various types of collected data, and the logic control unit 62 makes adjustments to the operation of the contactor 12, the inverter 115, and the diesel engine 7.

[0067] The above are preferred embodiments of the application, and do not limit the protection scope of the application, so that: any equivalent changes made according to the structure, shape, and principle of the application should be covered within the protection scope of the application.

Claims

1. An integrated ship power management system based on Internet of Things, characterized in that, The utility model relates to a front-end power generation module (11), a power algorithm module (2), a control management module (6), a front-end monitoring module, a man-machine interaction module (9). The front-end power generation module (11) includes a wind power generation unit (111), a low-temperature waste heat unit (112), a shaft power generation unit (113) and a plurality of storage batteries (114), the wind power generation unit (111) includes a wind power generation assembly, converts wind energy into electric energy, the low-temperature waste heat unit (112) is connected with a diesel engine (7), converts heat energy generated by the diesel engine (7) into electric energy, and the shaft power generation unit (113) includes a shaft generator, converts mechanical energy output by the diesel engine (7) into electric energy; the front-end power generation module (11) is connected with a power grid (1) and delivers electric power to the power grid (1); The power algorithm module (2) is arranged between the power grid (1) and the front-end power generation module (11), is used for monitoring electric power output of the wind power generation unit (111), the low-temperature waste heat unit (112) and the shaft power generation unit (113), collecting and analyzing stored electric energy of the front-end power generation module (11), and uploading monitoring data and analysis results to the control management module (6); The front-end monitoring module is used for monitoring electric power generation of the wind power generation unit (111), the low-temperature waste heat unit (112) and the shaft power generation unit (113), and real-time sending monitoring data to the control management module (6); The control management module (6) is connected with the front-end power generation module (11), the power algorithm module (2) and the front-end monitoring module, receives monitoring data of the power algorithm module (2) and the front-end monitoring module, and real-time fitting of electric power curve and analysis of electric energy conversion rate are carried out according to monitoring data; the control management module (6) adjusts the electric power flowing into the power grid (1) according to fitting and analysis results; the power algorithm module (2) is connected with a data processing unit (61); The man-machine interaction module (9) is connected with the control management module (6), displays control instructions, calculation results and fitting curves of the control management module (6), and a ship management personnel manually enters control instructions through the man-machine interaction module (9); The front-end monitoring module includes a power generation monitoring unit (4), a power grid monitoring unit (3) and a power monitoring unit (5); The control management module (6) is connected with the diesel engine (7), calculates and analyzes monitoring data of the power grid monitoring unit (3), controls the diesel engine (7) to run and controls electric power input of the power grid (1); ​ The front end power generation module (11) includes a plurality of groups of storage batteries (114), the plurality of groups of storage batteries (114) are arranged between the wind power generation unit (111) and the power grid (1), between the low-temperature waste heat unit (112) and the power grid (1), between the shaft power generation unit (113) and the power grid (1), store electric quantity or provide electric quantity to the power grid (1), the storage battery (114) is connected with an inverter (115), and the inverter (115) is connected with the power grid (1) through the inverter (115); the inverter (115) is connected with a control management module (6), the data processing unit (61) sends the data statistical result to the data processing unit (61), so that the logic control unit (62) can adjust the output power of the inverter (115) in real time according to the change of the load in the power grid (1); the control management module (6) sends instructions to the inverter (115) and the storage battery (114), and changes the charging and discharging state of the storage battery (114).

2. The integrated ship electric energy management system based on the Internet of Things according to claim 1, characterized in that: Also includes; A heat energy storage unit (71) is connected with the low-temperature waste heat unit (112), the control management module (6) and the diesel engine (7), receives instructions of the control management module (6), stores heat energy of the diesel engine (7) and releases heat energy to the low-temperature waste heat unit (112).

3. The integrated ship electric energy management system based on the Internet of Things according to claim 1, characterized in that: Also includes; An environment monitoring module (8) is arranged, the environment monitoring module (8) monitors weather information such as temperature and wind speed in a ship navigation area, sends monitoring information to the control management module (6), and the control management module (6) analyzes and predicts environmental conditions according to the monitoring information and displays through the man-machine interaction module (9).

4. The integrated ship electric energy management system based on the Internet of Things according to claim 3, characterized in that: The control management module (6) includes a data processing unit (61) and a logic control unit (62); The data processing unit (61) receives collected information of the power algorithm module (2), the front end monitoring module and the environment monitoring module (8), classifies, analyzes and calculates information according to modules, and sends results to the logic control unit (62); The logic control unit (62) generates instructions according to monitoring results of the data processing unit (61).

5. The integrated ship electric energy management system based on the internet of things according to claim 1, characterized in that: Also includes; A wireless module (92) includes a GPS positioning module, a special network communication module and a satellite communication module, the GPS positioning module, the special network communication module and the satellite communication module are used for satellite positioning of a ship, data transmission, signal receiving and transmitting and instruction transmission between the ship and a land management company, and are used for internal and external network login of personnel in the ship.

6. The integrated ship electric energy management system based on the Internet of Things according to claim 5, characterized in that: Also includes a network information platform (91) established based on a server of the man-machine interaction module (9). The wireless module (92) further comprises a 4 / 5G module and a WIFI module; the personnel inside the ship connect the network through the 4 / 5G module and the WIFI module, log in the ship intranet, and can log in the network information platform (91) through the mobile terminal after identity verification, use the mobile terminal login, and issue an instruction to the logic control unit (62) through the man-machine interaction module (9).

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