Deep sea aquaculture system

Abstract

The invention provides a deep sea aquaculture system, and belongs to the technical field of aquaculture. The deep-sea aquaculture system comprises an aquaculture net cage and a power distribution system. Wherein the aquaculture net cage comprises an electricity load, and the power distribution system comprises a diesel power generation assembly, a wind power generation assembly, an energy storage assembly and an intelligent control device. Therefore, through the intelligent control device, under the condition that the wind speed meets the power generation condition of the wind power generation assembly, the wind power generation assembly is adopted as a main power supply, the power utilization requirement of the aquaculture net cage can be met, and meanwhile the green and energy-saving effects can be achieved.

Description

Technical Field

[0001] The present application relates to the field of aquaculture technology, and in particular to a deep-sea aquaculture system. Background Art

[0002] At present, my country's deep-sea aquaculture cages are developing rapidly. The volume of the cages is becoming larger and larger, and the location of the cages is gradually developing to deeper and farther sea areas, but this also brings the problem of excessively high operation and maintenance costs. Nowadays, most deep-sea cages are equipped with various automation equipment to gradually reduce operation and maintenance costs. With the improvement of the degree of automation, the electricity demand of the cages is also increasing. Traditional aquaculture cages are mainly powered by diesel generators, but they often require large fuel tanks and long-distance fuel transportation, which is costly and does not meet the requirements of today's low-carbon strategy. How to solve the large-scale electricity demand of deep-sea aquaculture cages has become a technical problem that engineers urgently need to solve. Summary of the invention

[0003] The main purpose of the embodiment of the present application is to propose a deep-sea aquaculture system. The purpose is to set up a power distribution system including a diesel generator component, a wind power generator component and an energy storage component, and use the wind power generator component as the main power supply when the wind speed meets the power generation conditions, so as to meet the power demand of the aquaculture cage, and at the same time, achieve the effect of green energy saving.

[0004] To achieve the above-mentioned purpose, a first aspect of an embodiment of the present application proposes a deep-sea aquaculture system, comprising an aquaculture cage and a power distribution system, wherein the aquaculture cage comprises an electrical load, and the power distribution system comprises a diesel generator assembly, a wind power generator assembly, an energy storage assembly, and an intelligent control device, wherein the diesel generator assembly, the wind power generator assembly, and the energy storage assembly are all electrically connected to the intelligent control device, and the diesel generator assembly, the wind power generator assembly, and the energy storage assembly are also electrically connected to the electrical load, and the diesel generator assembly and the wind power generator assembly are both electrically connected to the energy storage assembly; wherein the intelligent control device is configured as follows:

[0005] When it is detected that the wind speed meets the power generation condition of the wind power generation component and the power generation of the wind power generation component is greater than or equal to the power consumption of the power load, the wind power generation component is controlled to supply power to the power load alone;

[0006] When it is detected that the wind speed meets the power generation condition of the wind power generation component, but the power generation of the wind power generation component is less than the power consumption of the power load, and the energy storage capacity of the energy storage component is less than a preset value, the wind power generation component is controlled as the main power supply, and the diesel power generation component is controlled as the auxiliary power supply to supply power to the power load;

[0007] When it is detected that the wind speed meets the power generation condition of the wind power generation component, but the power generation of the wind power generation component is less than the power consumption of the power load, and the energy storage capacity of the energy storage component is greater than or equal to the preset value, and the combined power generation of the wind power generation component and the energy storage component is greater than or equal to the power consumption of the power load, the wind power generation component is controlled to be the main power supply, and the energy storage component is controlled to be the auxiliary power supply to supply power to the power load;

[0008] When it is detected that the wind speed meets the power generation condition of the wind power generation component, but the power generation of the wind power generation component is less than the power consumption of the power load, and the energy storage capacity of the energy storage component is greater than or equal to the preset value, but the combined power generation of the wind power generation component and the energy storage component is less than the power consumption of the power load, the wind power generation component is controlled as the main power supply, and the energy storage component and the diesel generator component are controlled as auxiliary power supplies to supply power to the power load.

[0009] In one embodiment of the present application, the intelligent control device is further configured as:

[0010] When it is detected that the wind speed does not meet the power generation condition of the wind power generation component, and the energy storage capacity of the energy storage component is greater than or equal to the preset value, and the power supply of the energy storage component is greater than or equal to the power consumption of the power load, control the energy storage component to supply power to the power load alone;

[0011] When it is detected that the wind speed does not meet the power generation condition of the wind power generation component, and the energy storage capacity of the energy storage component is greater than or equal to the preset value, but the power supply of the energy storage component is less than the power consumption of the power load, the energy storage component is controlled to be the main power supply, and the diesel power generation component is controlled to be the auxiliary power supply to supply power to the power load;

[0012] When it is detected that the wind speed does not meet the power generation condition of the wind power generation component and the energy storage capacity of the energy storage component is less than the preset value, the diesel power generation component is controlled to supply power to the electrical load alone.

[0013] In one embodiment of the present application, the intelligent control device is further configured as:

[0014] When the wind power generation component is controlled to supply power to the power load alone, the wind power generation component is also controlled to charge the energy storage component.

[0015] In one embodiment of the present application, the intelligent control device is further configured as:

[0016] When the diesel generator assembly is controlled as the main power supply to supply power to the electrical load, the diesel generator assembly is also controlled to charge the energy storage assembly;

[0017] When the diesel generator assembly is controlled to be an auxiliary power supply to supply power to the electrical load, the diesel generator assembly is also controlled to charge the energy storage assembly;

[0018] When the diesel power generation component is controlled to supply power to the electrical load alone, the diesel power generation component is also controlled to charge the energy storage component.

[0019] In one embodiment of the present application, the wind power generation assembly includes a wind turbine, a speed increaser, a wind speed sensor and a power control module; the speed increaser and the wind speed sensor are both electrically connected to the power control module, the speed increaser is electrically connected to the wind turbine, and the power control module is configured as follows:

[0020] The speed and output power of the speed increaser are adjusted accordingly according to the wind speed change detected by the wind speed sensor, so that the output voltage and frequency of the wind generator can change with the change of the wind speed.

[0021] In one embodiment of the present application, the breeding cage includes a column, an upper ring tube, a lower ring tube, a net and a tower; two adjacent columns are connected by the upper ring tube and the lower ring tube to form a cage frame, the net is suspended inside the cage frame, the wind power generation component is arranged at the top of the tower, and the bottom end of the tower is installed on the column.

[0022] In one embodiment of the present application, the cage frame is in a Japanese-shaped structure, and a reinforcing structure is further provided at the bottom end of the tower to fasten the bottom end of the tower to the column.

[0023] In one embodiment of the present application, an upper ring inner support is provided between two adjacent upper ring tubes, a lower ring inner support is provided between two adjacent lower ring tubes, and diagonal supports are respectively provided between one upper ring tube and the two connected columns to support the upper ring tube.

[0024] In one embodiment of the present application, the breeding cage also includes a living area, a mechanical equipment area and a power distribution equipment area. A deck is also provided on the upper ring pipe, and the deck is supported by a deck brace provided above the upper ring pipe. The living area, the mechanical equipment area and the power distribution equipment area are all provided on the deck. The living area and the mechanical equipment area both contain useful electrical loads. The diesel generator assembly, the energy storage assembly and the intelligent control device in the power distribution system are all provided in the power distribution equipment area. Cables are laid under the deck, and the wind power generation assembly is connected to the power distribution equipment area through the cables. The power distribution equipment area is connected to the various power loads in the living area and the mechanical equipment area through the cables.

[0025] In the technical solution provided in the embodiment of the present application, the deep-sea aquaculture system includes aquaculture cages and a power distribution system. Among them, the aquaculture cages include power loads, and the power distribution system includes a diesel generator component, a wind power generation component, an energy storage component and an intelligent control device. Through the intelligent control device, when the wind speed meets the power generation conditions of the wind power generation component, if it is detected that the power generation of the wind power generation component is greater than or equal to the power consumption of the power load, the wind power generation component is controlled to supply power to the power load alone; if it is detected that the power generation of the wind power generation component is less than the power consumption of the power load, and the energy storage capacity of the energy storage component is less than the preset value, the wind power generation component is controlled as the main power supply, and the diesel generator component is controlled as the auxiliary power supply to supply power to the power load; if it is detected that the power generation of the wind power generation component is less than the power consumption of the power load, and the energy storage capacity of the energy storage component is greater than the preset value, If the wind speed meets the power generation conditions of the wind power generation component, the wind power generation component is used as the main power supply, and the energy storage component is used as the auxiliary power supply to supply power to the power load. If the wind speed meets the power generation conditions of the wind power generation component, the wind power generation component is used as the main power supply, and the energy storage component is used as the auxiliary power supply to supply power to the power load. If the wind speed meets the power generation conditions of the wind power generation component, the wind power generation component is used as the main power supply, and the energy storage component is used as the auxiliary power supply to supply power to the power load. That is, when the wind speed meets the power generation conditions of the wind power generation component, the wind power generation component is used as the main power supply to meet the power demand of the aquaculture cage, and at the same time, it can also achieve the effect of green energy saving.

[0026] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of a deep-sea aquaculture system provided in one embodiment of the present application.

[0028] Figure 2 It is a side view of a deep-sea aquaculture system provided in one embodiment of the present application.

[0029] Figure 3 It is a front view of a deep-sea aquaculture cage provided in one embodiment of the present application.

[0030] Figure 4 It is a schematic diagram of the assembly of a deep-sea aquaculture system provided in one embodiment of the present application.

[0031] Figure 5 It is a structural block diagram of a power distribution system provided in one embodiment of the present application.

[0032] Figure 6This is an example diagram of a power distribution system provided in one embodiment of the present application.

[0033] Figure 7 This is a flow chart of the first step of a power supply method for a deep-sea aquaculture system provided in one embodiment of the present application.

[0034] Figure 8 This is a flow chart of the second step of the power supply method for a deep-sea aquaculture system provided in one embodiment of the present application.

[0035] Fig. 9 This is a flow chart of a power supply method for a deep-sea aquaculture system provided in one embodiment of the present application.

[0036] Reference numerals:

[0037] Aquaculture cage 1, column 11, upper ring pipe 12, lower ring pipe 13, tower 14, deck 15, deck diagonal brace 16, living area 17, mechanical equipment area 18, power distribution equipment area 19, cage frame 110, upper ring inner brace 121, diagonal brace 122, lower ring inner brace 131, cable 120;

[0038] Power distribution system 2, diesel power generation component 210, wind power generation component 220, energy storage component 230, intelligent control device 240. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0040] It should be noted that, although the functional modules are divided in the device schematic diagram and the logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than the module division in the device or the order in the flowchart. The terms "first", "second", etc. in the specification, claims and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein are only for the purpose of describing the embodiments of this application and are not intended to limit this application.

[0042] With the surge in demand for fishery resources and overfishing in modern times, the continuous decline of offshore marine fishery resources, deep-sea aquaculture cages came into being.

[0043] Deep-sea aquaculture cages refer to aquaculture cages that can be used in relatively deep sea areas (usually the depth of the sea area is greater than 20m). They are a type of aquaculture equipment that has developed rapidly in the past decade. Through complex structural design and calculation, the structure of the cage body and the stability and safety of the fish cultured can be guaranteed even under very harsh marine conditions. At present, relevant national management departments have formulated policies to restrict offshore cage aquaculture and support and encourage deep-sea aquaculture. The implementation of this policy is of great significance to expanding aquaculture areas, reducing environmental pressure, protecting and regulating the structure of marine aquaculture species, and promoting scientific deep-sea aquaculture.

[0044] At present, my country's deep-sea aquaculture cages are developing rapidly. The volume of the cages is becoming larger and larger, and the location of the cages is gradually developing to deeper and farther sea areas, but this also brings the problem of excessively high operation and maintenance costs. Nowadays, most deep-sea cages are equipped with various automation equipment to gradually reduce operation and maintenance costs. With the improvement of the degree of automation, the electricity demand of the cages is also increasing. Traditional aquaculture cages are mainly powered by diesel generators, but they often require large fuel tanks and long-distance fuel transportation, which is costly and does not meet the requirements of today's low-carbon strategy. How to solve the large-scale electricity demand of deep-sea aquaculture cages has become a technical problem that engineers urgently need to solve.

[0045] Based on this, an embodiment of the present application provides a deep-sea aquaculture system. By setting up a power distribution system including a diesel generator component, a wind power generator component and an energy storage component, when the wind speed meets the power generation conditions, the wind power generator component is used as the main power supply, which can meet the electricity demand of the aquaculture cages and achieve green and energy-saving effects.

[0046] Reference Figure 1-Figure 5 , Figure 1 is a schematic diagram of the structure of a deep-sea aquaculture system provided in one embodiment of the present application. Figure 2 is a side view of a deep-sea aquaculture system provided by an embodiment of the present application, Figure 3 1 is a front view of a deep-sea aquaculture cage provided in one embodiment of the present application. Figure 4 is an assembly diagram of a deep-sea aquaculture system provided in one embodiment of the present application, Figure 5 is a structural block diagram of a power distribution system provided by an embodiment of the present application. Figure 1-Figure 5 The deep sea aquaculture system comprises an aquaculture cage 1 and a power distribution system 2. The power distribution system is used to provide power to the power load in the aquaculture cage 1 to meet the power demand of the power load in the aquaculture cage 1.

[0047] Reference Figure 1-Figure 4, the aquaculture cage 1 includes columns 11, upper ring pipes 12, lower ring pipes 13, a netting (not shown in the figure), and a tower barrel 14. Among them, adjacent two columns 11 are connected by the upper ring pipe 12 and the lower ring pipe 13 to form a cage frame 110. The netting is suspended inside the cage frame 110, and the wind power generation assembly 220 is arranged at the top of the tower barrel 14, and the bottom end of the tower barrel 14 is installed on the column 11. Among them, the wind power generation assembly 220 is based on the column structure, which can save the base structure of the wind power generation assembly and reduce the weight of the main structure. By arranging the wind power generation assembly 220, the wind energy can be converted into electric energy and then provided to the electrical load of the aquaculture cage 1, achieving the effect of green energy conservation.

[0048] In some embodiments, referring to Figure 1 , Figure 3 and Figure 4 , the cage frame 110 is designed as a rectangle and can be designed in a "day" - shaped structure. A strengthening structure (not shown in the figure) can be provided at the bottom end of the tower barrel 14 to fasten the bottom end of the tower barrel 14 to the column 11. By adopting the "day" - shaped structure, the structural layout can be carried out according to the primary and secondary wave directions, that is, the structural design can be carried out according to the primary wave direction of the sea area where it is placed, making the long side face the primary wave direction to reduce the bending moment borne by the long side, thereby reasonably improving the structural utilization rate. By providing a strengthening structure at the bottom end of the tower barrel 14, the installation strength of the wind power generation assembly 220 can be increased.

[0049] In some embodiments, referring to Figure 1 , the aquaculture cage system may include multiple wind power generation assemblies 220, and the multiple wind power generation assemblies 220 are arranged diagonally on the corresponding columns 11. As Figure 1 shown, the aquaculture cage 1 altogether includes six columns 11, and wind power generation assemblies 220 are arranged on the columns 11 at the middle nodes facing the primary wave direction and on the other two diagonally - opposite columns 11. By arranging the fan power generation assemblies 220 diagonally, the spacing of the structure can be maximally utilized to ensure the power generation efficiency of the fan power generation assemblies.

[0050] In some embodiments, referring to Figure 2-Figure 4 , an upper - ring inner brace 121 is arranged between adjacent two upper ring pipes 12, and a lower - ring inner brace 131 is arranged between adjacent two lower ring pipes 13. An inclined brace 122 is respectively arranged between one upper ring pipe 12 and the two connected columns 11. This can play a role in fastening the cage frame 110. At the same time, the inclined braces 122 respectively arranged between one upper ring pipe 12 and the two connected columns 11 can play a role in supporting the upper ring pipe 12. The upper - ring inner brace 121 arranged between adjacent two upper ring pipes 12 can play a role in resisting the load of the fan power generation assembly. The upper ring pipe 12, the upper - ring inner brace 121 and the lower ring pipe 13 are provided with a netting tooling (not shown in the figure), which can be used to hang the netting to suspend the netting inside the cage frame 110.

[0051] In some embodiments, reference Figure 1 and Figure 4 , a deck 15 may also be provided on the upper ring pipe 12, and the deck 15 is supported by a deck brace 16 provided above the upper ring pipe 12. A living area 17, a mechanical equipment area 18 and a power distribution equipment area 19 may also be provided on the deck 15. Among them, the living area 17 and the mechanical equipment area 18 both contain useful electrical loads. The diesel generator assembly 210, the energy storage assembly 230 and the intelligent control device 240 in the power distribution system 2 are all arranged in the power distribution equipment area 19. A cable 120 that can be used for power transmission is laid under the deck 15, and the wind power generation assembly 220 can transmit electrical energy to the power distribution equipment area 19 through the cable 120. The power distribution setting area 20 can also be connected to the various power loads in the residential area 17 and the mechanical equipment area 18 through the cable 120 to provide power to the various power loads in the residential area 17 and the mechanical equipment area 18 to meet the power demand of each power load.

[0052] When installing the aquaculture cage 1, different ballast water is pumped to each column 11 through a water pump (not shown in the figure) on the deck 15 to balance the structure, ensuring that the platform has sufficient anti-overturning and anti-slip capabilities when bearing the load of the wind turbine power generation component 2 in different wave directions. By using a bottom-mounted structure and using ballast water for ballasting, the stability of the main structure can be ensured under harsh wave environments and huge wind turbine power generation component loads.

[0053] Mechanical equipment area 18 can be equipped with a series of automation equipment such as automatic net lifting system, live fish delivery pump, solar night alarm, automatic fish size grading system, automatic net cleaning machine, vacuum live fish catching machine, deep-sea cage feeding system, cage aquaculture monitoring system, seawater desalination system, etc. The power distribution equipment area can be equipped with electrical equipment such as frequency converter, rectifier, inverter, junction box, energy storage components, etc.

[0054] In some embodiments, when manufacturing the main structure of the aquaculture cage 1, the columns 11 and the upper ring tube 12 and the lower ring tube 13 are first welded, and then the lower ring inner support 131 and the lower ring tube 13 are welded, the upper ring inner support 121 and the upper ring tube 12 are welded, and the diagonal support 122 and the columns 11 and the upper ring tube 12 are welded in sequence. After the deck 15 and the living area 17, the mechanical equipment area 18 and the power distribution equipment area 19 above are manufactured as a whole, the integrated hoisting is closed with the cage frame 110, and then the three wind turbine power generation components 220 are installed (that is, the three wind turbine power generation components 220 are respectively installed on the corresponding columns through the tower 14), and finally the net is hung on the net tooling of the upper ring tube 12 and the lower ring tube 13.

[0055] During installation, a tugboat is used to tow the aquaculture cage to the target sea area, and then ballast water is simultaneously pumped into the four columns 11 on both sides in the length direction to make the aquaculture cage sink at a uniform speed. After sinking to the seabed, observe whether the waterline is consistent with the calculation, and then pump ballast water into the remaining two middle columns 11 to fine-tune the center of gravity to balance the structure.

[0056] After the installation of the breeding cage is completed, the circuit of the wind power generation component 220 is connected, so that the electric energy generated by the wind power generation component 220 can be transmitted to the power distribution equipment area 19 through the cable 120 laid under the deck 15. The power distribution equipment area 19 can transmit the electric energy to the power loads in the residential area 17, the mechanical equipment area 18 and other areas through the cable 120 for use. In the embodiment of the present application, the grid-building mode of the distribution system can use the energy storage grid as the main power source. The energy storage component adopts a grid-building inverter, which can flexibly realize the switching of microgrid and diesel power generation, wind power generation and off-grid mode, which is different from the grid mode of traditional projects with diesel generation as the main power source, and can achieve the effect of green energy saving.

[0057] Reference Figure 5 The power distribution system 2 includes a diesel generator assembly 210, a wind power generator assembly 220, an energy storage assembly 230 and an intelligent control device 240. Among them, the diesel generator assembly 210, the wind power generator assembly 220 and the energy storage assembly 230 are all electrically connected to the intelligent control device 240. The diesel generator assembly 210, the wind power generator assembly 220 and the energy storage assembly 230 are also electrically connected to the power load in the breeding cage 1, and the diesel generator assembly 210 and the wind power generator assembly 220 are all electrically connected to the energy storage assembly 230. Therefore, the intelligent control device 240 can control any one or more of the diesel generator assembly 210, the wind power generator assembly 220 and the energy storage assembly 230 to supply power to the power load to meet the large-scale power demand of the breeding cage 1.

[0058] Reference Figure 6 , Figure 6 is an example diagram of a power distribution system provided by an embodiment of the present application. Figure 6As shown, the intelligent control device 240 can convert the electric energy generated by the wind power generation component 220 and store it in the energy storage component 230. Among them, when the electric energy generated by the wind power generation component 220 cannot meet the power demand of the power load, and the energy storage component 230 (such as the energy storage battery) is undervoltage, the intelligent control device 240 can control the diesel power generation component 210 to start working, so as to control the diesel power generation component 210 to supply power to the power load. At the same time, the diesel power generation component 210 also charges the energy storage component 230, so that the energy storage component 230 returns to a stable voltage state. If the electric energy generated by the wind power generation component 220 can meet the power demand of the power load, or the electric energy generated by the wind power generation component 220 cannot meet the power demand of the power load, but the energy storage capacity of the energy storage component 230 is greater than or equal to the preset value, there is no need to start the diesel power generation component 210. In this way, diesel consumption can be saved as much as possible, the number of diesel replenishments can be reduced, and a continuous and stable power supply function can be provided.

[0059] Among them, undervoltage of the energy storage component 230 means that the current voltage of the battery is lower than the battery over-discharge protection voltage, and the energy storage component 230 restores voltage regulation means that the current voltage is restored to the battery over-discharge protection voltage, that is, the current voltage is greater than or equal to the battery over-discharge protection voltage.

[0060] The intelligent control device 240 may include a monitoring unit, a control unit, a wind power controller (WPC), a DC / DC converter, a synchronous rectification unit, and a DC / AC converter. In addition, the start and stop of the diesel generator assembly 210 also requires the corresponding diesel generator control module to be controlled, and the diesel generator control module may include: an input signal detection module, a control module, and an AC output module. Among them, the monitoring unit can be used to monitor the energy storage capacity of the energy storage assembly 230, and the monitoring unit can also be used to monitor whether the wind speed meets the power generation conditions of the wind power generation assembly 220 and whether the power generation of the wind power generation assembly 220 can meet the power demand of the power load. The monitoring unit is electrically connected to the control unit, so that the monitored monitoring signal can be sent to the control unit, so that the control unit can control the selection of one or more of the diesel generator assembly 210, the wind power generation assembly 220, and the energy storage assembly 230 to supply power to the power load according to the received monitoring signal. At the same time, the control unit can control the diesel generator assembly 210 or the wind power generation assembly 220 to charge the energy storage assembly 230 according to the received monitoring signal. Therefore, the diesel generator assembly 210, the wind power generator assembly 220 and the energy storage assembly 230 can be powered independently or in combination. At the same time, the diesel generator assembly 210 and the wind power generator assembly 220 can also charge the energy storage assembly 230, thereby realizing the continuous and stable power supply function for the power load of the breeding cage.

[0061] Reference Figure 7 , Figure 7 It is a flowchart of the first step of the power supply method for a deep-sea aquaculture system provided in an embodiment of the present application, which is executed by the intelligent control device 240 in the power distribution system 2, including but not limited to steps S710 to S740.

[0062] Step S710, when it is detected that the wind speed meets the power generation condition of the wind power generation component, and the power generation of the wind power generation component is greater than or equal to the power consumption of the power load, control the wind power generation component to supply power to the power load alone;

[0063] Step S720: When it is detected that the wind speed meets the power generation condition of the wind power generation component, but the power generation of the wind power generation component is less than the power consumption of the power load, and the energy storage capacity of the energy storage component is less than the preset value, the wind power generation component is controlled as the main power supply, and the diesel power generation component is controlled as the auxiliary power supply to supply power to the power load;

[0064] Step S730, when it is detected that the wind speed meets the power generation condition of the wind power generation component, but the power generation of the wind power generation component is less than the power consumption of the power load, and the energy storage capacity of the energy storage component is greater than or equal to the preset value, and the power generation of the wind power generation component and the energy storage component together is greater than or equal to the power consumption of the power load, the wind power generation component is controlled to be the main power supply, and the energy storage component is controlled to be the auxiliary power supply to supply power to the power load;

[0065] Step S740, when it is detected that the wind speed meets the power generation conditions of the wind power generation component, but the power generation of the wind power generation component is less than the power consumption of the power load, and the energy storage capacity of the energy storage component is greater than or equal to the preset value, but the combined power generation of the wind power generation component and the energy storage component is less than the power consumption of the power load, the wind power generation component is controlled as the main power supply, and the energy storage component and the diesel generator component are controlled as auxiliary power supplies to supply power to the power load.

[0066] In the embodiment of the present application, when the wind speed meets the power generation conditions of the wind power generation component, through the intelligent control device 240, if it is detected that the power generation of the wind power generation component 220 is greater than or equal to the power consumption of the power load, the wind power generation component 220 is controlled to supply power to the power load alone; if it is detected that the power generation of the wind power generation component 220 is less than the power consumption of the power load, and the energy storage capacity of the energy storage component 230 is less than the preset value, the wind power generation component 220 is controlled as the main power supply, and the diesel power generation component 210 is controlled as the auxiliary power supply to supply power to the power load; if it is detected that the power generation of the wind power generation component 220 is less than the power consumption of the power load, and the energy storage capacity of the energy storage component 230 is greater than the preset value, the wind power generation component 220 is controlled as the main power supply, and the diesel power generation component 210 is controlled as the auxiliary power supply to supply power to the power load; If it is detected that the power generation of the wind power generation component 220 is less than the power consumption of the power load, and the energy storage capacity of the energy storage component 230 is greater than or equal to the preset value, but the power generation of the wind power generation component 220 and the energy storage component 230 is less than the power consumption of the power load, then the wind power generation component 220 is controlled as the main power supply, and the energy storage component 230 is controlled as the auxiliary power supply to supply power to the power load. If it is detected that the power generation of the wind power generation component 220 is less than the power consumption of the power load, and the energy storage capacity of the energy storage component 230 is greater than or equal to the preset value, but the power generation of the wind power generation component 220 and the energy storage component 230 is less than the power consumption of the power load, then the wind power generation component 220 is controlled as the main power supply, and the energy storage component 230 and the diesel generator component 210 are controlled as auxiliary power supplies to supply power to the power load. That is, when the wind speed meets the power generation conditions of the wind power generation component, the wind power generation component 220 is used as the main power supply, which can meet the power demand of the breeding cage, and at the same time, it can also achieve the effect of green energy saving.

[0067] It should be noted that the preset value can be set accordingly according to the selected energy storage component 230. If the selected energy storage component 230 is a lithium battery, the preset value can be set to 30%. The discharge depth of a lithium battery is 80-90%, otherwise, the battery will be damaged. In order to maintain the overall health and service life of a fully charged lithium battery, it is crucial to avoid using the battery when the battery power is below the recommended 20% charge level. From the perspective of the depth and life of lithium battery charge and discharge, it is generally not recommended to discharge too much, and it is more appropriate to keep it at 30%.

[0068] In some embodiments, reference Figure 8 , Figure 8 It is a flowchart of the second step of the power supply method for a deep-sea aquaculture system provided in an embodiment of the present application, which is executed by the intelligent control device 240 in the power distribution system 2, including but not limited to steps S810 to S830.

[0069] Step S810, when it is detected that the wind speed does not meet the power generation condition of the wind power generation component, and the energy storage capacity of the energy storage component is greater than or equal to the preset value, and the power supply of the energy storage component is greater than or equal to the power consumption of the power load, control the energy storage component to supply power to the power load alone;

[0070] Step S820, when it is detected that the wind speed does not meet the power generation condition of the wind power generation component, and the energy storage capacity of the energy storage component is greater than or equal to the preset value, but the power supply of the energy storage component is less than the power consumption of the power load, the energy storage component is controlled to be the main power supply, and the diesel generator component is controlled to be the auxiliary power supply to supply power to the power load;

[0071] Step S830, when it is detected that the wind speed does not meet the power generation condition of the wind power generation component and the energy storage capacity of the energy storage component is less than a preset value, the diesel power generation component is controlled to supply power to the electrical load alone.

[0072] In the embodiment of the present application, when the wind speed does not meet the power generation conditions of the wind power generation component, through the intelligent control device 240, if it is detected that the energy storage capacity of the energy storage component 230 is greater than or equal to the preset value, and the power supply of the energy storage component 240 is greater than or equal to the power consumption of the power load, the energy storage component 230 is controlled to supply power to the power load alone. If it is detected that the energy storage capacity of the energy storage component is greater than or equal to the preset value, but the power supply of the energy storage component is less than the power consumption of the power load, the energy storage component 230 is controlled as the main power supply, and the diesel power generation component 210 is controlled as the auxiliary power supply to supply power to the power load. If it is detected that the energy storage capacity of the energy storage component 230 is less than the preset value, the diesel power generation component 210 is controlled to supply power to the power load alone. That is, when the wind speed does not meet the power generation conditions of the wind power generation component 220, one or more of the energy storage component 230 or the diesel power generation component 210 can be selected to supply power to the power load, which can also meet the power supply needs of the power load. Furthermore, the diesel generator assembly 210 can be kept from being started as much as possible, so as to save diesel consumption as much as possible and reduce the number of times diesel is replenished.

[0073] Reference Fig. 9 , Fig. 9 It is a flow chart of a power supply method for a deep-sea aquaculture system provided in an embodiment of the present application, which is executed by the intelligent control device 240 in the power distribution system 2, and includes the following steps S910 to S9130.

[0074] Step S910, detecting whether the wind speed meets the power generation condition of the wind power generation component;

[0075] Step S920: if the wind speed meets the power generation condition of the wind power generation component, then detect whether the power generation of the wind power generation component is greater than or equal to the power consumption of the power load;

[0076] Step S930, if the power generation of the wind power generation component is greater than or equal to the power consumption of the power load, then control the wind power generation component to supply power to the power load alone;

[0077] Step S940, if the power generation of the wind power generation component is less than the power consumption of the power load, then detecting whether the energy storage capacity of the energy storage component is greater than or equal to a preset value;

[0078] Step S950, if the energy storage capacity of the energy storage component is less than a preset value, the wind power generation component is controlled as the main power supply, and the diesel generation component is controlled as the auxiliary power supply to supply power to the electrical load;

[0079] Step S960, if the energy storage capacity of the energy storage component is greater than or equal to the preset value, then detecting whether the power generation of the wind power generation component and the energy storage component is greater than or equal to the power consumption of the power load;

[0080] Step S970: If the power generated by the wind power generation component and the energy storage component is greater than or equal to the power consumption of the power load, the wind power generation component is controlled as the main power supply, and the energy storage component is controlled as the auxiliary power supply to supply power to the power load;

[0081] Step S980: If the power generated by the wind power generation component and the energy storage component is less than the power consumption of the power load, the wind power generation component is controlled as the main power supply, and the energy storage component and the diesel power generation component are controlled as auxiliary power supplies to supply power to the power load;

[0082] Step S990, if the wind speed does not meet the power generation condition of the wind power generation component, then detecting whether the energy storage capacity of the energy storage component is greater than or equal to a preset value;

[0083] Step S9100: If the energy storage capacity of the energy storage component is less than a preset value, the diesel generator component is controlled to supply power to the electrical load alone;

[0084] Step S9110, if the energy storage capacity of the energy storage component is greater than or equal to a preset value, detecting whether the power supply of the energy storage component is greater than or equal to the power consumption of the power load;

[0085] Step S9120, if the power supply of the energy storage component is greater than or equal to the power consumption of the power load, then control the energy storage component to supply power to the power load alone;

[0086] Step S9130: If the power supply of the energy storage component is less than the power consumption of the electrical load, the energy storage component is controlled as the main power supply, and the diesel generator component is controlled as the auxiliary power supply to supply power to the electrical load.

[0087] In the embodiment of the present application, when the wind speed meets the power generation conditions of the wind power generation component 220, the wind power generation component 220 can be used as the main power supply through the intelligent control device 240, which can meet the power demand of the breeding cage, and at the same time, it can also achieve the effect of green energy saving. When the wind speed does not meet the power generation conditions of the wind power generation component 220, one or more of the energy storage component 230 or the diesel power generation component 210 can be selected through the intelligent control device 240 to supply power to the electrical load, which can also meet the power supply demand of the electrical load. By controlling one or more of the wind power generation component 220, the energy storage component 230 and the diesel power generation component 210 to supply power to the electrical load of the breeding cage through the intelligent control device 240, the diesel power generation component 210 can be started as much as possible, diesel consumption can be saved as much as possible, and the number of diesel replenishment times can be reduced.

[0088] In some embodiments, since both the diesel generator assembly 210 and the wind generator assembly 220 are electrically connected to the energy storage assembly 230, the intelligent control device 240 is also used to control the wind generator assembly 220 to charge the energy storage assembly 230 when the wind generator assembly 220 is controlled to supply power to the electrical load alone. The intelligent control device 240 is also used to control the diesel generator assembly 210 to charge the energy storage assembly 230 when the diesel generator assembly 210 is controlled to supply power to the electrical load as the main power supply. The intelligent control device 240 is also used to control the diesel generator assembly 210 to charge the energy storage assembly 230 when the diesel generator assembly 210 is controlled to supply power to the electrical load as the auxiliary power supply. The intelligent control device 240 is also used to control the diesel generator assembly 210 to charge the energy storage assembly 230 when the diesel generator assembly 210 is controlled to supply power to the electrical load alone.

[0089] In the embodiment of the present application, when the intelligent control device 240 detects that the power generation of the wind power generation component 220 is greater than the power consumption of the power load of the breeding cage, it can also control the wind power generation component 220 to charge the energy storage component 230, that is, to replenish the power of the energy storage component 230. When the intelligent control device 240 detects that the diesel power generation component 210 is working, it can also control the diesel power generation component 210 to charge the energy storage component 230. Therefore, by controlling the wind power generation component 220 or the diesel power generation component 210 to charge the energy storage component 230 through the intelligent control device 240, the power of the energy storage component 230 can be replenished in time.

[0090] The principle of wind power generation is to use wind power to drive the windmill blades to rotate, and then increase the speed of rotation through the speed increaser to prompt the generator to generate electricity. According to windmill technology, power generation can start at a breeze speed of about three meters per second (the degree of breeze). The wind power generation component 220 includes a wind turbine, a speed increaser, a wind speed sensor and a power control module. The speed increaser and the wind speed sensor are both electrically connected to the power control module, and the speed increaser is electrically connected to the wind turbine. The power control module is configured to: according to the wind speed change detected by the wind speed sensor, the speed increaser is controlled to adjust the speed and output power of the speed increaser accordingly, so that the output voltage and frequency of the wind turbine can change with the change of wind speed. Wind power generation adopts frequency conversion technology, so that the output voltage and frequency of the wind turbine can automatically change with the change of wind speed. The power control module can adjust the speed and output power of the speed increaser in real time according to the change of wind speed to achieve the best power generation efficiency. The key to control is to analyze the wind speed condition in real time and make corresponding adjustments through reasonable control strategies and accurate measurement data of the wind speed sensor to maximize the use of wind energy.

[0091] In the embodiment of the present application, the power distribution system mainly includes a diesel generator assembly 210, an energy storage assembly 230, a wind power generation assembly 220 and an intelligent control device 240. The network architecture of the power distribution system includes an electrical wiring network structure inside the microgrid, a power supply mode (DC / AC and three-phase / single-phase power supply), the node location of the microgrid where the corresponding load and distributed power source are located, etc. As a complete isolated power system, the microgrid realizes an autonomous system of self-control, protection and management, and relies on its own control and management energy supply to realize functions such as power balance control, system operation optimization, fault detection and protection, and power quality management. The microgrid adopts an intelligent control device 240 to comprehensively monitor, analyze and control the energy storage component 230, the wind power generation component 220 and the diesel generation component 210, and has various power supply modes such as independent wind power generation component power supply, wind power generation component and energy storage component combination power supply, wind power generation component, energy storage component and diesel generation component combination power supply, independent energy storage component power supply, energy storage component and diesel generation component combination power supply and independent diesel generation component power supply, etc., and has a seamless switching control function, and realizes remote monitoring and diagnosis functions.

[0092] The energy storage module 230 adopts a container modular design solution, and the battery group realizes modular independent monitoring. If a group fails, it can automatically disconnect from the grid and issue a fault alarm, which is much more accurate than the electrical cluster monitoring of traditional battery strings. Because the battery group realizes modular design, it can be flexibly replaced, reducing the cost of replacing the entire battery cluster.

[0093] In the embodiment of the present application, the power distribution system can also be designed to monitor and analyze the meteorological system, and can predict the wind power generation capacity (short-term, medium-term and long-term) based on meteorological data. Based on these data analyses, centralized power prediction, power control and energy management of wind turbine power can be performed to improve the utilization rate of wind energy. The power distribution system can also manage equipment and materials according to the type and characteristics of the power load on the breeding cage and the characteristics of breeding, and realize the statistics and calculation analysis of electricity consumption of different equipment and different time periods, thereby realizing the analysis of electricity data, and based on the prediction of new energy power generation and meteorological monitoring and analysis, it can formulate a power generation plan, and adjust the power generation plan according to the real-time monitored power grid operation data, and compile a real-time power generation plan.

[0094] Based on the various power supply modes of the micro-distribution system, various control modes can be provided through the intelligent control device 240 to achieve different power supply combinations. Through the coordinated joint operation control of multiple control targets in different time periods, the operation state of the multi-energy complementary distribution system is optimized in real time, and the total output power volatility of the complementary distribution system is reduced by coordinating the control strategy of the energy storage components, and the power generation follow-up and power coordination of the distribution system are supported, which can improve the power generation and utilization capacity of the distribution system.

[0095] The preferred embodiments of the present invention are described above with reference to the accompanying drawings, but the scope of the rights of the present invention is not limited thereto. Any modification, equivalent substitution and improvement made by a person skilled in the art without departing from the scope and essence of the present invention should be within the scope of the rights of the present invention.

Claims

1. A deep sea aquaculture system, characterized in that: It comprises a breeding cage and a power distribution system, wherein the breeding cage comprises an electrical load, the power distribution system comprises a diesel generator assembly, a wind power generator assembly, an energy storage assembly and an intelligent control device, wherein the diesel generator assembly, the wind power generator assembly and the energy storage assembly are all electrically connected to the intelligent control device, and the diesel generator assembly, the wind power generator assembly and the energy storage assembly are also electrically connected to the electrical load, and the diesel generator assembly and the wind power generator assembly are both electrically connected to the energy storage assembly; wherein the intelligent control device is configured as follows: When it is detected that the wind speed meets the power generation condition of the wind power generation component and the power generation of the wind power generation component is greater than or equal to the power consumption of the power load, the wind power generation component is controlled to supply power to the power load alone; When it is detected that the wind speed meets the power generation condition of the wind power generation component, but the power generation of the wind power generation component is less than the power consumption of the power load, and the energy storage capacity of the energy storage component is less than a preset value, the wind power generation component is controlled as the main power supply, and the diesel power generation component is controlled as the auxiliary power supply to supply power to the power load; When it is detected that the wind speed meets the power generation condition of the wind power generation component, but the power generation of the wind power generation component is less than the power consumption of the power load, and the energy storage capacity of the energy storage component is greater than or equal to the preset value, and the combined power generation of the wind power generation component and the energy storage component is greater than or equal to the power consumption of the power load, the wind power generation component is controlled to be the main power supply, and the energy storage component is controlled to be the auxiliary power supply to supply power to the power load; When it is detected that the wind speed meets the power generation condition of the wind power generation component, but the power generation of the wind power generation component is less than the power consumption of the power load, and the energy storage capacity of the energy storage component is greater than or equal to the preset value, but the combined power generation of the wind power generation component and the energy storage component is less than the power consumption of the power load, the wind power generation component is controlled as the main power supply, and the energy storage component and the diesel generator component are controlled as auxiliary power supplies to supply power to the power load.

2. The deep sea aquaculture system according to claim 1, characterized in that: The intelligent control device is also configured as: When it is detected that the wind speed does not meet the power generation condition of the wind power generation component, and the energy storage capacity of the energy storage component is greater than or equal to the preset value, and the power supply of the energy storage component is greater than or equal to the power consumption of the power load, control the energy storage component to supply power to the power load alone; When it is detected that the wind speed does not meet the power generation condition of the wind power generation component, and the energy storage capacity of the energy storage component is greater than or equal to the preset value, but the power supply of the energy storage component is less than the power consumption of the power load, the energy storage component is controlled to be the main power supply, and the diesel power generation component is controlled to be the auxiliary power supply to supply power to the power load; When it is detected that the wind speed does not meet the power generation condition of the wind power generation component and the energy storage capacity of the energy storage component is less than the preset value, the diesel power generation component is controlled to supply power to the electrical load alone.

3. The deep sea aquaculture system according to claim 1, characterized in that: The intelligent control device is also configured as: When the wind power generation component is controlled to supply power to the power load alone, the wind power generation component is also controlled to charge the energy storage component.

4. The deep sea aquaculture system according to claim 1 or 2, characterized in that: The intelligent control device is also configured as: When the diesel generator assembly is controlled as the main power supply to supply power to the electrical load, the diesel generator assembly is also controlled to charge the energy storage assembly; When the diesel generator assembly is controlled to be an auxiliary power supply to supply power to the electrical load, the diesel generator assembly is also controlled to charge the energy storage assembly; When the diesel power generation component is controlled to supply power to the electrical load alone, the diesel power generation component is also controlled to charge the energy storage component.

5. The deep sea aquaculture system according to claim 1, characterized in that: The wind power generation assembly includes a wind turbine, a speed increaser, a wind speed sensor and a power control module; the speed increaser and the wind speed sensor are both electrically connected to the power control module, the speed increaser is electrically connected to the wind turbine, and the power control module is configured as follows: The speed and output power of the speed increaser are adjusted accordingly according to the wind speed change detected by the wind speed sensor, so that the output voltage and frequency of the wind generator can change with the change of the wind speed.

6. The deep sea aquaculture system according to claim 1, characterized in that: The breeding cage includes a column, an upper ring tube, a lower ring tube, a net and a tower; two adjacent columns are connected by the upper ring tube and the lower ring tube to form a cage frame, the net is suspended inside the cage frame, the wind power generation component is arranged at the top of the tower, and the bottom end of the tower is installed on the column.

7. The deep sea aquaculture system according to claim 6, characterized in that: The cage frame is in a Japanese-shaped structure, and a reinforcement structure is also provided at the bottom end of the tower to fasten the bottom end of the tower to the column.

8. The deep sea aquaculture system according to claim 6, characterized in that: The plurality of wind power generation components are diagonally arranged on corresponding columns.

9. The deep sea aquaculture system according to claim 6, characterized in that: An upper ring inner support is arranged between two adjacent upper ring tubes, a lower ring inner support is arranged between two adjacent lower ring tubes, and oblique supports are respectively arranged between one upper ring tube and two connected columns.

10. The deep sea aquaculture system according to claim 6, characterized in that: The breeding cage also includes a living area, a mechanical equipment area and a power distribution equipment area. A deck is also arranged on the upper ring pipe, and the deck is supported by a deck brace arranged above the upper ring pipe. The living area, the mechanical equipment area and the power distribution equipment area are all arranged on the deck. The living area and the mechanical equipment area both contain useful electrical loads. The diesel generator assembly, the energy storage assembly and the intelligent control device in the power distribution system are all arranged in the power distribution equipment area. Cables are laid under the deck, and the wind power generation assembly is connected to the power distribution equipment area through the cables. The power distribution equipment area is connected to various power loads in the living area and the mechanical equipment area through the cables.

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