Electric power system for deep sea aquaculture

Abstract

The invention relates to an electric power system for deep sea aquaculture. A floating type wind turbine generator set, a photovoltaic generator set and an aquaculture box are all arranged on a floating body structure, and the floating type wind turbine generator set and the photovoltaic generator set are both connected with an external power grid through submarine cables; the floating wind turbine generator and the photovoltaic generator set are both used for generating electric energy and transmitting the electric energy to an external power grid and to the energy storage module; the energy storage module is used for storing electric energy generated by the floating type wind turbine generator set and the photovoltaic generator set; and the control module is used for controlling at least one of the floating type wind turbine generator, the photovoltaic generator set, the external power grid and the energy storage module to supply power to the aquaculture box according to the operation states of the floating type wind turbine generator, the photovoltaic generator set and the submarine cable. According to the invention, aquaculture can be carried out while power generation is carried out in the deep sea, so that a multifunctional power system can be realized, and real-time power supply can be carried out on the aquaculture box.

Description

Technical Field

[0001] The present disclosure relates to the field of electric power technology, and in particular, to an electric power system for deep-sea aquaculture. Background Art

[0002] Offshore wind power mainly refers to the renewable energy technology of building wind farms in the ocean or coastal areas and using wind turbines to convert wind energy into electrical energy. In the related technologies, power generation is carried out by using seabed pile foundations or deep sea floating wind power, which has a single function. Summary of the invention

[0003] The purpose of the present disclosure is to provide a power system for deep-sea aquaculture to solve the technical problems existing in the related technologies.

[0004] In order to achieve the above-mentioned object, the present disclosure provides a power system for deep-sea aquaculture, comprising a floating structure, a floating wind turbine, a photovoltaic generator, an aquaculture box, a submarine cable, an energy storage module and a control module, wherein the floating wind turbine, the photovoltaic generator and the aquaculture box are all arranged on the floating structure, and the floating wind turbine and the photovoltaic generator are both connected to an external power grid through the submarine cable; The floating wind turbine generator set and the photovoltaic generator set are both used to generate electric energy, and transmit the electric energy to the external power grid and transmit the electric energy to the energy storage module; The energy storage module is used to store the electric energy generated by the floating wind turbine group and the photovoltaic generator group; The control module is used to control at least one of the floating wind turbine group, the photovoltaic generator group, the external power grid and the energy storage module to supply power to the aquaculture box according to the operating status of the floating wind turbine group, the photovoltaic generator group and the submarine cable.

[0005] Optionally, the power system further comprises a distribution board, which is respectively connected to the floating wind turbine set, the photovoltaic generator set, various devices in the aquaculture box, the submarine cable, the energy storage module and the control module; The control module is used for: According to the operating status of the floating wind turbine group, the photovoltaic generator group and the submarine cable, the status of the distribution board is controlled to supply power to the aquaculture box through at least one of the floating wind turbine group, the photovoltaic generator group, the external power grid and the energy storage module.

[0006] Optionally, the power distribution board includes a first switch and a second switch, the first switch and the second switch are connected via a bus tie switch, wherein the first switch is used to control the power supply of a first target device in the aquaculture tank, and the second switch is used to control the power supply of a second target device in the aquaculture tank, wherein the first target device is used to represent a device used to maintain the normal operation of the aquaculture tank, and the second target device is used to represent a device in the aquaculture tank that is not often used and has a relatively small impact on the normal operation of the aquaculture tank; The control module is used for: When the operating states of the photovoltaic power generation group, the floating wind turbine group and the submarine cable are all in a faulty operating state, the bus tie switch in the distribution board is controlled to be in an open state to supply power to the second target device in the aquaculture box through the energy storage module.

[0007] Optionally, the control module is further used for: When the state of charge in the energy storage module is less than a preset charge threshold, the diesel generator set in the energy storage module is controlled to generate electric energy, so as to power the second target device in the aquaculture tank through the electric energy.

[0008] Optionally, the control module is further used for: When the operating status of the floating wind turbine and the submarine cable is a faulty operating status, and the operating status of the photovoltaic generator set is a normal operating status, the main coupling switch in the distribution board is controlled to be in an open state to supply power to the second target device in the aquaculture tank through the photovoltaic generator set.

[0009] Optionally, the control module is further used for: When the operating state of the floating wind turbine set is a normal operating state or the operating state of the submarine cable is a normal operating state, the bus tie switch in the distribution board is controlled to be in a connected state to supply power to the first target device and the second target device in the aquaculture box through at least one of the floating wind turbine set, the photovoltaic generator set and the external power grid.

[0010] Optionally, the first target equipment includes fish collecting equipment, and the second target equipment includes aquaculture system operating equipment, aquaculture system sensors, fire and gas systems, HVAC systems, wireless communication systems, lighting and sockets, feeding equipment, auxiliary bait supplementation equipment and net washing equipment.

[0011] Optionally, the energy storage module is used for: When the aquaculture tank is in the first operating state, power is supplied to the aquaculture system operating equipment, the aquaculture system sensor, the fire and gas system, the HVAC system, the wireless communication system, and the lighting and sockets in the second target equipment; When the aquaculture box is in the second operating state, power is supplied to the aquaculture system operating equipment, the aquaculture system sensor, the fire and gas system, the HVAC system, the wireless communication system, the lighting and sockets, and the feeding equipment in the second target equipment; When the aquaculture tank is in the third operating state, power is supplied to the aquaculture system operating equipment, the aquaculture system sensors, the fire and gas system, the HVAC system, the wireless communication system, the lighting and sockets, and the auxiliary bait supplementation equipment in the second target equipment.

[0012] Optionally, the control module is further used for: When the power of starting the second target device is greater than the power capacity supplied by the power system, an alarm message is generated and transmitted to a terminal device of a relevant person to prompt the relevant person to handle the situation.

[0013] Optionally, the floating structure is a three-float floating structure, and the floating wind turbine set is arranged on the buoy of the floating structure, and the polygonal shape enclosed inside the floating structure is used to arrange the aquaculture box.

[0014] Through the above technical solution, a floating wind turbine, a photovoltaic generator set and an aquaculture box are arranged on the floating structure, and the floating wind turbine and the photovoltaic generator set are connected to the external power grid through a submarine cable. By arranging the aquaculture box on the floating structure, compared with the related art that only a floating wind turbine is arranged in the deep sea to generate electricity, it is possible to carry out aquaculture while generating electricity in the deep sea, thereby realizing a multifunctional power system. Afterwards, a control module is arranged on the power system, and the control module is used to control at least one of the floating wind turbine, the photovoltaic generator, the submarine cable and the energy storage module to supply power to the aquaculture box according to the operating status of the floating wind turbine, the photovoltaic generator and the submarine cable, wherein the energy storage module is used to store the electric energy generated by the floating wind turbine and the photovoltaic generator, so as to realize real-time power supply to the aquaculture box.

[0015] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings: Figure 1 is a schematic diagram showing a power system for deep-sea aquaculture according to an exemplary embodiment of the present disclosure.

[0017] Figure 2 is a side view showing a power system according to an exemplary embodiment of the present disclosure.

[0018] Figure 3 FIG. 4 is a top view showing a power system according to an exemplary embodiment of the present disclosure. DETAILED DESCRIPTION

[0019] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0020] It should be noted that all actions of acquiring signals, information or data in the present disclosure are carried out in compliance with the relevant data protection laws and policies of the country where the device is located and with the authorization given by the owner of the corresponding device.

[0021] Offshore wind power is mainly based on nearshore wind power. The characteristics of nearshore wind power are that it is close to the shore and shallow in water. It usually adopts the type of submarine pile foundation, fixing the wind turbine on the seabed through the pile foundation, and the electricity generated by the wind turbine is transmitted to the land power supply network through submarine cables.

[0022] However, the disadvantage of using the technical solution of submarine pile foundation is that it limits the offshore distance of offshore wind power. It can only be used in offshore areas, and the water depth does not exceed 20 meters. And as the offshore distance increases, the depth of the sea continues to increase, and the difficulty of piling on the seabed is getting higher and higher. It is not suitable for the needs of deep sea wind power projects.

[0023] In the first related technology, a floating wind turbine is set up, and a floating structure is provided to provide buoyancy. The wind turbine is installed on the floating structure and floats on the sea to generate electricity. The generated electricity is also transmitted to land via a submarine cable for grid connection.

[0024] However, the inventors have found that when this method is used to generate electricity at sea, the electrical system is extremely simple, and most of them only have one distribution box to supply power to the lighting or sockets of the pile foundation or floating structure, with a single function.

[0025] In view of this, the present disclosure provides a power system for deep-sea aquaculture to solve the technical problems existing in the above-mentioned related technologies.

[0026] like Figure 1 As shown, Figure 1 is a schematic diagram showing a power system for deep-sea aquaculture according to an exemplary embodiment of the present disclosure, with reference to Figure 1 , comprising a floating structure 2, a floating wind turbine set 1, a photovoltaic generator set 3, an aquaculture box 8, a submarine cable, an energy storage module 4 and a control module 6, wherein the floating wind turbine set 1, the photovoltaic generator set 3 and the aquaculture box 8 are all arranged on the floating structure 2, and the floating wind turbine set 1 and the photovoltaic generator set 3 are connected to an external power grid 5 through the submarine cable; The floating wind turbine group 1 and the photovoltaic power generation group 3 are both used to generate electric energy, and transmit the electric energy to the external power grid 5 and transmit the electric energy to the energy storage module 4; The energy storage module 4 is used to store the electric energy generated by the floating wind turbine group 1 and the photovoltaic generator group 3; The control module 6 is used to control at least one of the floating wind turbine group 1, the photovoltaic generator group 3, the external power grid 5 and the energy storage module 4 to supply power to the aquaculture box 8 according to the operating status of the floating wind turbine group 1, the photovoltaic generator group 3 and the submarine cable.

[0027] Through the above technical solution, a floating wind turbine 1, a photovoltaic generator 3 and an aquaculture box 8 are arranged on the floating structure 2, and the floating wind turbine 1 and the photovoltaic generator 3 are connected to the external power grid 5 through a submarine cable. By arranging the aquaculture box 8 on the floating structure 2, compared with the related art that only the floating wind turbine 1 is arranged in the deep sea to generate electricity, it is possible to achieve aquaculture while generating electricity in the deep sea, thereby realizing a multifunctional power system. Afterwards, a control module 6 is arranged on the power system, and the control module 6 is used to control at least one of the floating wind turbine 1, the photovoltaic generator 3, the submarine cable and the energy storage module 4 to supply power to the aquaculture box 8 according to the operating status of the floating wind turbine 1, the photovoltaic generator 3 and the submarine cable, wherein the energy storage module 4 is used to store the electric energy generated by the floating wind turbine 1 and the photovoltaic generator 3, so as to realize real-time power supply to the aquaculture box 8.

[0028] In order to enable those skilled in the art to better understand the power system for deep-sea aquaculture provided by the present disclosure, the above steps are described in detail with examples below.

[0029] For example, the floating structure 2 may be a structure that provides buoyancy. The floating wind turbine 1 may be a device that uses a floating structure to support a wind turbine to generate electricity at sea. The photovoltaic generator 3 may be a device that converts light energy into electrical energy. The aquaculture box 8 may be a system for aquaculture.

[0030] In the embodiment of the present disclosure, a floating wind turbine 1, a photovoltaic power generation group 3 and an aquaculture box 8 are arranged on a floating structure 2, and the floating wind turbine 1 and the photovoltaic power generation group 3 are respectively connected to an external power grid 5 on land through a submarine cable, so that the floating structure 2 can be arranged in the deep sea. When the floating wind turbine 1 and the photovoltaic power generation group 3 transmit the generated electric energy to the external power grid 5 through the submarine cable, the aquaculture box 8 can also be powered in real time. Compared with the related art of only arranging the floating wind turbine 1 in the deep sea to generate electricity, a multifunctional power system can be realized, and the economic benefits can be improved at the same time.

[0031] In the embodiment of the present disclosure, the floating wind turbine set 1 and the photovoltaic generator set 3 are both used to generate electric energy, and the electric energy can be transmitted to the external power grid 5 through the submarine cable after passing through the step-up transformer, or a part of the electric energy can be stored in the energy storage module 4. When a part of the electric energy is stored in the energy storage module 4, when the floating wind turbine set 1, the photovoltaic generator set 3 and the submarine cable fail, the aquaculture box 8 can be powered by starting the energy storage module 4, or when the floating wind turbine set 1, the photovoltaic generator set 3 and the submarine cable are operating normally, the energy storage module 4 can be stopped and started, and the aquaculture box 8 can be powered directly through the floating wind turbine set 1, the photovoltaic generator set 3 or the external power grid 5, and then the aquaculture box 8 can be powered in real time through the power system. Among them, the control module 6 can be a PLC (Programmable Logic Controller) module, which is not specifically limited in the embodiment of the present disclosure.

[0032] The energy storage module 4 may include an energy storage battery, a main cabinet, a bypass cabinet, a feeder cabinet, and a diesel generator. When the floating wind turbine 1 and the photovoltaic generator 3 are operating normally, the energy storage battery can be charged through the energy storage module 4. When the floating wind turbine 1, the photovoltaic generator 3, and the submarine cable fail or cannot operate normally due to extreme sea conditions such as typhoons and rainstorms, the energy storage module 4 can be automatically put into use to supply power to the equipment that needs to move in the aquaculture box 8, so as to realize the daily functions of the aquaculture box 8, such as automatic feeding. When the floating wind turbine 1, the photovoltaic generator 3, and the submarine cable are troubleshooted and repaired or the extreme weather has passed, and the floating wind turbine 1 and the photovoltaic generator 3 can operate normally, the energy storage module 4 can resume the energy storage mode again and automatically resume charging the energy storage battery.

[0033] The diesel generator in the energy storage module 4 can automatically start the diesel generator based on the real-time monitored battery power when a major fault occurs, the maintenance outage time is long, or the energy storage battery is discharged for a long time, resulting in a low power level. After the diesel generator is started, it can charge the energy storage battery while also providing power for the normally operating equipment in the aquaculture box 8.

[0034] In a possible manner, the floating structure 2 is a three-float floating structure, and the floating wind turbine 1 is arranged on the buoy of the floating structure 2 , and the polygonal shape enclosed inside the floating structure 2 is used to arrange the aquaculture box 8 .

[0035] It should be understood that if Figure 2 and Figure 3 As shown, the floating structure 2 can be a three-float floating structure. Inside the floating structure 2, a regular hexagon is enclosed. An aquaculture box 8 can be set in the regular hexagon, and the aquaculture box 8 can be powered in real time to realize a multifunctional power system.

[0036] In a possible manner, the power system further includes a distribution board 7, and the distribution board 7 is respectively connected to the floating wind turbine 1, the photovoltaic generator 3, each device in the aquaculture box 8, the submarine cable, the energy storage module 4 and the control module 6; The control module 6 is used to: According to the operating status of the floating wind turbine group 1, the photovoltaic generator group 3 and the submarine cable, the status of the distribution board 7 is controlled to supply power to the aquaculture box 8 through at least one of the floating wind turbine group 1, the photovoltaic generator group 3, the external power grid 5 and the energy storage module 4.

[0037] It should be understood that the distribution board 7 can be used to supply power to all devices arranged on or inside the floating structure 2. Thus, the distribution board 7 is respectively connected to the floating wind turbine 1, the photovoltaic generator 3, the various devices in the aquaculture box 8, the submarine cable, the energy storage module 4 and the control module 6 to realize power control of various devices or systems. Furthermore, in the embodiment of the present disclosure, the state of the distribution board 7 can be controlled to control the power supply to the aquaculture box 8 through at least one of the floating wind turbine 1, the photovoltaic generator 3, the external power grid 5 and the energy storage module 4. For example, when any one of the floating wind turbine 1, the photovoltaic generator 3, the submarine cable and the energy storage module 4 fails, the aquaculture box 8 can be powered by other modules. And at the same time, if the submarine cable is in normal operation, the aquaculture box 8 can be powered by the external power grid 5, and this is not specifically limited in the embodiment of the present disclosure.

[0038] In a possible manner, the switchboard 7 includes a first switch and a second switch, the first switch and the second switch are connected via a bus tie switch, wherein the first switch is used to control the power supply of a first target device in the aquaculture tank 8, and the second switch is used to control the power supply of a second target device in the aquaculture tank 8, wherein the first target device is used to represent a device used to maintain the normal operation of the aquaculture tank 8, and the second target device is used to represent a device in the aquaculture tank 8 that is not often used and has a relatively small impact on the normal operation of the aquaculture tank 8; The control module 6 is used for: When the operating states of the photovoltaic power generation group 3, the floating wind turbine group 1 and the submarine cable are all in a faulty operating state, the main coupling switch in the distribution board 7 is controlled to be in an open state to supply power to the second target device in the aquaculture box 8 through the energy storage module 4.

[0039] It should be understood that the distribution board 7 may include a first switch and a second switch. The first switch may correspond to controlling a first target device, which may be a device with high power, low frequency of use, and no significant impact on aquaculture, such as a fish collecting device. The fish collecting device may be a net winch, a large crane, or a load-adjusting pump. The embodiments of the present disclosure do not make specific limitations on this.

[0040] The second switch can control the second target device, which can be a high-importance device such as control software, equipment for automatically maintaining the normal operation of the aquaculture box 8, etc., such as aquaculture system operating equipment, aquaculture system sensors, fire and gas systems, HVAC systems, wireless communication systems, lighting and sockets, feeding equipment, auxiliary bait supplementation equipment and net washing equipment, which are not specifically limited in the embodiments of the present disclosure. The first switch and the second switch can be connected through a mother-connected switch, which can be a relay, which is not specifically limited in the embodiments of the present disclosure.

[0041] Among them, the aquaculture system operating equipment can be the main control part of the aquaculture system. It contains professional software and a large screen display, which can centrally display the underwater aquaculture screen, water quality, operation status of each equipment in the aquaculture system, etc. in real time, and comprehensively track the entire aquaculture situation and equipment status. The software can be set to automatically run and stop the equipment, and coordinate the operation sequence of each device. The aquaculture system sensor can be an underwater camera, underwater fish gathering light, water quality sensor, meteorological sensor, etc. All aquaculture system sensors are connected to the aquaculture system operating equipment for comprehensive monitoring of the aquaculture situation.

[0042] The fire-fighting and gas-fire system can detect fires through the fire alarm probes arranged on the floating structure 2, and automatically cut off the equipment and activate the fire-fighting facilities when a fire is detected. The HVAC system can be used to provide ventilation and air conditioning for the rooms of the floating structure 2. The wireless communication system can be used for wireless communication between the floating structure 2 and the land. Lighting and sockets can provide lighting for the floating structure 2 and sockets for low-power devices. Feeding equipment can include feeders, dispensers, and wind-powered bait throwers. Auxiliary bait supplementation equipment can include folding arm cranes and storage tanks. Net washing equipment can include high-pressure cleaning pumps, underwater robots, electric carts and other supporting equipment.

[0043] When the distribution board 7 includes the first switch and the second switch, the bus tie switch can be controlled by the control module 6 to control the connection between the first switch and the second switch and the corresponding device. For example, when the bus tie switch is controlled to be connected, the first target device and the second target device can be powered by the floating wind turbine 1, the photovoltaic generator 3 and the external power grid 5 at the same time; when the bus tie switch is controlled to be disconnected, the second target device can be powered by the floating wind turbine 1, the photovoltaic generator 3, the energy storage module 4 and the external power grid 5. This is not specifically limited in the embodiments of the present disclosure.

[0044] In the embodiment of the present disclosure, when the operating states of the photovoltaic power generation group 3, the floating wind turbine group 1 and the submarine cable are all in a faulty operating state, it may mean that at this time, electric energy cannot be transmitted from the sea to the land or the electric capacity generated at sea is insufficient. Then, the main coupling switch in the distribution board 7 may be controlled to be in a disconnected state, so as to supply power to the second target device in the aquaculture box 8 through the energy storage module 4, so as to keep the aquaculture box 8 in a state of continuous and stable operation.

[0045] In a possible manner, the control module 6 is further used for: When the state of charge in the energy storage module 4 is less than a preset charge threshold, the diesel generator set in the energy storage module 4 is controlled to generate electric energy, so as to power the second target device in the aquaculture box 8 through the electric energy.

[0046] It should be understood that when the floating wind turbine 1, the photovoltaic generator 3 and the cable fail, but the electric energy stored in the energy storage module 4 is less than the preset charge threshold, it can mean that the electric energy stored in the energy storage module 4 cannot supply power to the second target device. At this time, the diesel generator in the energy storage module 4 can be enabled to generate electricity, and then the generated electric energy is used to supply power to the second target device and part of the electric energy is used to store in the energy storage battery. The preset charge threshold can be the minimum charge for the energy storage module 4 to provide electric energy to the external device.

[0047] In a possible manner, the control module 6 is further used for: When the operating status of the floating wind turbine 1 and the submarine cable is a faulty operating status, and the operating status of the photovoltaic generator set 3 is a normal operating status, the main coupling switch in the distribution board 7 is controlled to be in an open state to supply power to the second target device in the aquaculture box 8 through the photovoltaic generator set 3.

[0048] It should be understood that when a submarine cable fails, it may mean that reverse power supply through the external power grid 5 cannot be provided at this time. When a floating wind turbine 1 fails, it cannot generate electrical energy. At this time, when the photovoltaic generator set 3 is in normal operation, the energy storage module 4 can be disabled. The electrical energy generated by the photovoltaic generator set 3 cannot power high-power equipment. The main coupling switch between the first switch and the second switch can be disconnected, and the electrical energy generated by the photovoltaic generator set 3 can be used to power the second target device.

[0049] In a possible manner, the control module 6 is further used for: When the operating state of the floating wind turbine set 1 is a normal operating state or the operating state of the submarine cable is a normal operating state, the bus tie switch in the distribution board 7 is controlled to be in a connected state to supply power to the first target device and the second target device in the aquaculture box 8 through at least one of the floating wind turbine set 1, the photovoltaic generator set 3 and the external power grid 5.

[0050] It should be understood that when the floating wind turbine set 1, the photovoltaic generator set 3 and the submarine cable are in normal operation, the floating wind turbine set 1, the photovoltaic generator set 3 and the electric energy transmitted by the reverse power grid can be used to power the high-power equipment in the aquaculture box 8, and at this time, there is no need to start the energy storage module 4. Thus, the floating wind turbine set 1, the photovoltaic generator set 3 and the reverse power grid can be controlled to simultaneously power the first target device and the second target device in the aquaculture box 8, and this is not specifically limited in the embodiments of the present disclosure.

[0051] In the specific implementation process, the detection can be performed through the following steps. The power distribution board 7 can be divided into section A and section B, wherein section A can correspond to the first switch in this embodiment, corresponding to controlling the first target device, and section B can correspond to the second switch in this embodiment, corresponding to controlling the second target device. The PLC can be the control module 6 in this embodiment, and the specific control method is described as follows.

[0052] When the PLC detects that the floating wind turbine 1 is operating normally or the external power grid 5 can provide reverse power to the aquaculture box 8, there is sufficient power at this time, and the PLC controls the main coupling switch between section A and section B to automatically connect, and the first target device and the second target device located in section A and section B can be put into use.

[0053] When the PLC monitors that the floating wind turbine 1 or the submarine cable fails and the photovoltaic generator set 3 is the only one generating electricity, the power is limited at this time, and the PLC automatically controls to cut off the connection between the distribution board 7 and the floating wind turbine 1, and only connects the photovoltaic generator set 3, and controls the main coupling switch between section A and section B to be disconnected, prohibiting the first target device corresponding to section A from running, and only supplying power to the second target device corresponding to section B.

[0054] When the PLC detects that the floating wind turbine 1, the photovoltaic generator set 3 and the reverse external power grid 5 cannot be put into normal use due to extreme weather or faults, the PLC cuts off the connection between the distribution board 7 and the floating wind turbine 1 and the photovoltaic generator set 3, and the energy storage module 4 is automatically put into use. At this time, only the normal operation of the second target device connected to the energy storage module 4 can be maintained.

[0055] When the PLC detects that the energy storage battery in the energy storage module 4 has been discharged for a long time and the power is lower than the preset charge threshold, the energy storage module 4 can automatically start the diesel generator to charge the energy storage battery. At the same time, after the PLC detects that the diesel generator is started, it automatically connects the diesel generator to section B of the distribution board 7 to supply power to the second target device corresponding to section B, disconnects the main coupling switches of sections A and B, and the first target device corresponding to section A cannot be used.

[0056] When the weather improves or the fault is eliminated, the floating wind turbine 1 and the photovoltaic generator set 3 operate normally or can be reversely powered through the submarine cable, the PLC detects that the partial voltage and frequency of the floating wind turbine 1 and the photovoltaic generator set 3 are stable, and automatically closes the switch between the distribution board 7 and the floating wind turbine 1 and the photovoltaic generator set 3, and automatically closes the bus tie switch between sections A and B. The entire distribution board 7 automatically resumes power supply, and the energy storage module 4 automatically exits and continues charging.

[0057] Through the above technical solution, the equipment powered by the energy storage module 4 has the highest power source stability, and can still maintain operation in the extreme case that the floating wind turbine set 1, the photovoltaic power generation set 3, and the reverse power supply all fail. The second target equipment corresponding to the B section of the distribution board 7 is second, and the first target equipment corresponding to the A section can only operate when the floating wind turbine set 1 and the reverse power supply are normal.

[0058] In a possible manner, the energy storage module 4 is used for: When the aquaculture box 8 is in the first operating state, power is supplied to the aquaculture system operating equipment, the aquaculture system sensor, the fire and gas system, the HVAC system, the wireless communication system, and the lighting and sockets in the second target equipment; When the aquaculture box 8 is in the second operating state, power is supplied to the aquaculture system operating equipment, the aquaculture system sensor, the fire and gas system, the HVAC system, the wireless communication system, the lighting and sockets, and the feeding equipment in the second target equipment; When the aquaculture box 8 is in the third operating state, power is supplied to the aquaculture system operating equipment, the aquaculture system sensors, the fire and gas system, the HVAC system, the wireless communication system, the lighting and sockets, and the auxiliary bait supplementation equipment in the second target equipment.

[0059] It should be understood that when the aquaculture box 8 is in different operating states, the devices started are different and the power required is also different. Specifically, when the aquaculture box 8 is in the first operating state, it can represent that the aquaculture box 8 is in daily operation. At this time, power can be supplied to the devices in the aquaculture box 8 that are in daily operation, such as the aquaculture system operating equipment, aquaculture system sensors, fire and gas systems, HVAC systems, wireless communication systems, lighting and sockets.

[0060] When the aquaculture box 8 is in the second operating state, it can represent that the aquaculture box 8 needs to be fed with feed, and the feeding is performed 1-2 times a day, each time for about 1 hour. At this time, the equipment in the first operating state and the feeding equipment can be powered to ensure the stable operation of the aquaculture box 8.

[0061] When the aquaculture box 8 is in the third operating state, it can represent that the aquaculture box 8 needs to be supplemented with feed, and the period of supplementing feed is once a week, each time for about two hours. At this time, the equipment working in the first operating state and the auxiliary feed supplement equipment can be powered to maintain the stable operation of the aquaculture box 8.

[0062] When the aquaculture box 8 is in the stage of cleaning the fishing net, the cycle may be once a month, and each time for about 24 hours. At this time, the equipment working in the first operating state and the net washing equipment may be powered to maintain the stable operation of the aquaculture box 8.

[0063] Through the above technical solution, when the aquaculture box is in different operating states, the equipment required to be operated is different, but after the floating wind turbine 1, the photovoltaic generator 3 and the submarine cable fail, the operation can be completed by powering by the energy storage module 4.

[0064] Furthermore, in different operating states, the corresponding devices in different operating states do not operate at the same time. For example, when cleaning the fishing net, feeding or collecting fish will not be performed at the same time. However, in order to protect the power grid and avoid misoperation that causes the feeding equipment in the second operating state, the auxiliary bait supplementation equipment in the third operating state, and the fish collecting equipment to start running at the same time, they can be controlled by PLC, so that the devices in different operating states are strictly prohibited from running at the same time.

[0065] In a possible manner, the control module 6 is further used for: When the power of starting the second target device is greater than the power capacity supplied by the power system, an alarm message is generated and transmitted to a terminal device of a relevant person to prompt the relevant person to handle the situation.

[0066] It should be understood that when power is supplied to the second target device, when the second target device is in operation, if its operating power is greater than the power capacity supplied by the power system, an alarm message can be generated and transmitted to the terminal device of relevant personnel to prompt the relevant personnel to handle it.

[0067] For example, during the stage of cleaning the fishing net, some equipment may experience power changes during operation. For example, a high-pressure cleaning pump, when the net-cleaning robot is located at the bottom of a fishing net in deep water, the outlet pressure caused by the water depth increases, so the cleaning pump will increase its power to maintain the outlet pressure. Therefore, a priority tripping function can be set, and during the use of the equipment, when the power of the equipment is increased and the grid capacity is insufficient, the PLC can cut off the power supply to non-important equipment and issue an alarm to remind the operator that the grid load is approaching the limit, and that the operator needs to pay attention to the remaining capacity of the grid and consider whether to suspend operations or actively shut down some non-essential equipment.

[0068] In the aquaculture box 8, the aquaculture system operating equipment receives and processes the data and video images sent back by various aquaculture system sensors, performs analysis and processing, and can transmit the above data and images to the land control room through submarine cables or wireless communications for real-time monitoring by the on-duty personnel. In addition, after the aquaculture system operating equipment analyzes the various data sent back by the aquaculture system sensors, if it finds that the indicators are abnormal, it can issue an alarm to remind the on-duty personnel on land.

[0069] Through the above technical solution, in the power system, the floating wind turbine 1, the photovoltaic generator 3 and the energy storage module 4 are integrated to meet the needs of offshore wind and solar power generation and support fishery farming. In addition, a control module 6 is set in the power system. When there is a failure of the floating wind turbine 1, the photovoltaic generator 3, the submarine cable or extreme sea conditions such as typhoons and rainstorms, the power system can automatically cut off the faulty part and suppress high-power equipment to ensure the continuous operation of the power grid. When all floating wind turbines 1, photovoltaic generators 3 and reverse power supply cannot be used, they can automatically switch to the energy storage module 4 to continuously meet the power demand of the aquaculture box 8. And when the fault is eliminated, the power system can automatically restore the power supply of the floating wind turbine 1, which is fully automated and can be unmanned.

[0070] For the aquaculture box 8, by operating the aquaculture system equipment and arranging aquaculture system sensors, the aquaculture situation and various indicators can be monitored in real time on professional software, and the aquaculture equipment can also be set to automatically start, work, and stop according to the operating status.

[0071] Moreover, both the real-time situation of the power grid and the real-time information of the aquaculture box 8 can be transmitted back to the land studio through the submarine cable and the wireless communication system to remotely monitor the power grid, equipment, and various data indicators of aquaculture. In the case of abnormal indicators, such as insufficient feed inventory, abnormal water quality indicators, power equipment failure, etc., an alarm can also be issued to remind the on-duty personnel or staff to deal with it in time.

[0072] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0073] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0074] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A power system for deep-sea aquaculture, characterized in that: The invention comprises a floating structure (2), a floating wind turbine set (1), a photovoltaic generator set (3), an aquaculture box (8), a submarine cable, an energy storage module (4) and a control module (6); the floating wind turbine set (1), the photovoltaic generator set (3) and the aquaculture box (8) are all arranged on the floating structure (2); and the floating wind turbine set (1) and the photovoltaic generator set (3) are both connected to an external power grid (5) via the submarine cable; The floating wind turbine group (1) and the photovoltaic power generation group (3) are both used to generate electric energy, and transmit the electric energy to the external power grid (5) and transmit the electric energy to the energy storage module (4); The energy storage module (4) is used to store the electric energy generated by the floating wind turbine group (1) and the photovoltaic power generation group (3); The control module (6) is used to control at least one of the floating wind turbine group (1), the photovoltaic generator group (3), the external power grid (5) and the energy storage module (4) to supply power to the aquaculture box (8) according to the operating status of the floating wind turbine group (1), the photovoltaic generator group (3) and the submarine cable.

2. The power system for deep sea aquaculture according to claim 1, characterized in that: The power system further comprises a distribution board (7), wherein the distribution board (7) is respectively connected to the floating wind turbine group (1), the photovoltaic generator group (3), various devices in the aquaculture box (8), the submarine cable, the energy storage module (4) and the control module (6); The control module (6) is used to: According to the operating status of the floating wind turbine group (1), the photovoltaic generator group (3) and the submarine cable, the status of the switchboard (7) is controlled to supply power to the aquaculture box (8) through at least one of the floating wind turbine group (1), the photovoltaic generator group (3), the external power grid (5) and the energy storage module (4).

3. The power system for deep sea aquaculture according to claim 2, characterized in that: The switchboard (7) comprises a first switch and a second switch, wherein the first switch and the second switch are connected via a busbar switch, wherein the first switch is used to control the power supply of a first target device in the aquaculture tank (8), and the second switch is used to control the power supply of a second target device in the aquaculture tank (8), wherein the first target device is used to represent a device used to maintain the normal operation of the aquaculture tank (8), and the second target device is used to represent a device in the aquaculture tank (8) that is not often used and has a relatively small impact on the normal operation of the aquaculture tank (8); The control module (6) is used to: When the operating states of the photovoltaic power generation group (3), the floating wind turbine group (1) and the submarine cable are all in a faulty operating state, the busbar switch in the distribution board (7) is controlled to be in an open state, so as to supply power to the second target device in the aquaculture box (8) through the energy storage module (4).

4. The power system for deep sea aquaculture according to claim 3, characterized in that: The control module (6) is also used for: When the state of charge in the energy storage module (4) is less than a preset charge threshold, the diesel generator set in the energy storage module (4) is controlled to generate electrical energy, so as to supply power to the second target device in the aquaculture tank (8) through the electrical energy.

5. The power system for deep sea aquaculture according to claim 3, characterized in that: The control module (6) is also used for: When the operating state of the floating wind turbine set (1) and the submarine cable is a faulty operating state, and the operating state of the photovoltaic generator set (3) is a normal operating state, the busbar switch in the distribution board (7) is controlled to be in an open state, so as to supply power to the second target device in the aquaculture box (8) through the photovoltaic generator set (3).

6. The power system for deep sea aquaculture according to claim 3, characterized in that: The control module (6) is also used for: When the operating state of the floating wind turbine set (1) is a normal operating state or the operating state of the submarine cable is a normal operating state, the busbar switch in the switchboard (7) is controlled to be in a connected state, so as to supply power to the first target device and the second target device in the aquaculture box (8) through at least one of the floating wind turbine set (1), the photovoltaic generator set (3) and the external power grid (5).

7. The power system for deep sea aquaculture according to claim 3, characterized in that: The first target equipment includes fish collecting equipment, and the second target equipment includes aquaculture system operating equipment, aquaculture system sensors, fire and gas systems, HVAC systems, wireless communication systems, lighting and sockets, feeding equipment, auxiliary bait supplementation equipment and net washing equipment.

8. The power system for deep sea aquaculture according to claim 7, characterized in that: The energy storage module (4) is used for: When the aquaculture box (8) is in the first operating state, power is supplied to the aquaculture system operating equipment, the aquaculture system sensors, the fire and gas system, the HVAC system, the wireless communication system, and the lighting and sockets in the second target equipment; When the aquaculture box (8) is in the second operating state, power is supplied to the aquaculture system operating equipment, the aquaculture system sensor, the fire and gas system, the HVAC system, the wireless communication system, the lighting and sockets, and the feeding equipment in the second target equipment; When the aquaculture box (8) is in the third operating state, power is supplied to the aquaculture system operating equipment, the aquaculture system sensors, the fire and gas system, the HVAC system, the wireless communication system, the lighting and sockets, and the auxiliary bait supplementation equipment in the second target equipment.

9. The power system for deep sea aquaculture according to any one of claims 3 to 5, characterized in that: The control module (6) is also used for: When the power of starting the second target device is greater than the power capacity supplied by the power system, an alarm message is generated and transmitted to a terminal device of a relevant person to prompt the relevant person to handle the situation.

10. The power system for deep sea aquaculture according to any one of claims 1 to 8, characterized in that: The floating structure (2) is a three-float floating structure, and the floating wind turbine set (1) is arranged on the buoy of the floating structure (2). The polygonal shape enclosed inside the floating structure (2) is used to arrange the aquaculture box (8).

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