Offshore wind-solar integrated comprehensive power supply system and control method

Abstract

The invention discloses an offshore wind-solar integrated comprehensive power supply system and a control method, the power supply system comprises a supporting assembly, an electricity load and a monitoring assembly, the supporting assembly is used for being installed on the sea, the supporting assembly comprises at least three supporting pieces, and the multiple supporting pieces are arranged at intervals along a set contour; a photovoltaic power generation assembly is arranged on the supporting assembly, and a wind power generation assembly is arranged at the top end of each supporting piece; an energy storage battery is arranged in the sealed cabin of the supporting piece; the monitoring assembly is used for acquiring offshore wind speed data and illumination intensity data; the monitoring assembly is electrically connected with the controller, the controller carries out multi-level energy supply management according to the actual power generation conditions of the wind power generation assembly and the photovoltaic power generation assembly, high-efficiency power supply under different environment conditions is ensured, high-efficiency allocation of energy is achieved, and particularly the use requirement for uninterrupted power supply of a key power utilization load under extreme conditions is met. And the key electricity load can stably operate for a long time in a complex marine environment.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of offshore renewable energy power generation, in particular to an offshore wind-solar integrated comprehensive power supply system and a control method. BACKGROUND

[0002] With the continuous growth of global energy demand, traditional energy development methods have been unable to meet human needs, and land-based wind and solar energy development has reached saturation. The ocean, as the largest resource treasure trove on Earth, has great development potential. For example, a tropical island province has abundant solar and wind energy resources, with more than 2000 hours of sunshine per year and an average wind speed of more than 6 m / s in coastal areas, providing natural advantages for large-scale development of renewable energy. Traditional new energy development methods are usually independent wind or photovoltaic projects, but independent wind or photovoltaic projects are significantly affected by weather fluctuations, and energy storage technology has a shortened lifespan in high-temperature environments. Although some offshore new energy development systems integrate wind power and photovoltaic power generation, they lack intelligent control logic for multiple energy sources, and cannot guarantee uninterrupted power supply for critical loads under extreme conditions (such as long-term wind and solar power generation failure). SUMMARY

[0003] Therefore, the present application provides an offshore wind-solar integrated comprehensive power supply system and a control method to solve the problem that existing offshore new energy development systems lack intelligent control logic for multiple energy sources and cannot guarantee uninterrupted power supply for critical loads under extreme conditions.

[0004] In a first aspect, the present application provides an offshore wind-solar integrated comprehensive power supply system, comprising:

[0005] A support assembly for installation at sea, the support assembly comprising at least three support members, the plurality of support members being spaced apart along a predetermined contour;

[0006] An electrical load;

[0007] A photovoltaic power generation assembly disposed on the support assembly;

[0008] A wind power generation assembly corresponding to the top end of each support member;

[0009] An energy storage battery disposed in a sealed cabin of the support member;

[0010] A monitoring assembly for obtaining wind speed data and light intensity data at sea;

[0011] A controller electrically connected to the monitoring assembly, the controller being configured to:

[0012] When the wind speed data is greater than a first preset wind speed, the wind power generation assembly is controlled to generate electricity to supply power to the power consumption load and the energy storage battery; when the wind speed data is greater than a second preset wind speed and less than the first preset wind speed, the wind power generation assembly is controlled to generate electricity to supply power to the power consumption load;

[0013] When the light intensity data is greater than a first preset light intensity, the photovoltaic power generation assembly is controlled to generate electricity to supply power to the power consumption load and the energy storage battery; when the light intensity data is greater than a second preset light intensity and less than the first preset light intensity, the photovoltaic power generation assembly is controlled to generate electricity to supply power to the power consumption load;

[0014] When the wind speed data is less than the second preset wind speed and the light intensity data is less than the second preset light intensity, the energy storage battery is controlled to provide power consumption load for the power consumption load.

[0015] According to the offshore wind and light integrated comprehensive power supply system, at least the following beneficial effects are achieved:

[0016] By hiding the energy storage battery in the sealed cabin of the support, the energy storage battery is prevented from being directly exposed to the high-temperature environment outside, which is beneficial to prolong the service life of the energy storage battery; meanwhile, the monitoring assembly is used to acquire the wind speed data and the light intensity data on the sea in real time and transmit them to the controller, if the power generation amount of the wind power generation assembly under the current wind speed environment condition meets the power consumption load of the power consumption load, the wind power generation assembly is preferentially controlled to generate electricity to supply power to the power consumption load and store the excess electricity in the energy storage battery, if the power generation amount of the photovoltaic power generation assembly under the current light intensity environment condition meets the power consumption load of the power consumption load, the photovoltaic power generation assembly is preferentially controlled to generate electricity to supply power to the power consumption load and store the excess electricity in the energy storage battery, the energy storage battery is ensured to store sufficient electricity, and under extreme conditions, when the sum of the power generation amount of the wind power generation assembly and the power generation amount of the photovoltaic power generation assembly cannot meet the power consumption load of the power consumption load, the energy storage battery can be controlled to discharge and complement the wind power generation assembly and the photovoltaic power generation assembly to provide power consumption load for the power consumption load, or the energy storage battery can be controlled to discharge to independently provide power consumption load for the power consumption load, energy is efficiently allocated, and in particular, the use requirement of uninterrupted power supply of the key power consumption load under extreme conditions is met, so that the key power consumption load can be stably operated for a long time under complex marine environment.

[0017] In an optional embodiment, the monitoring assembly comprises a first detection member and a second detection member, the first detection member is arranged on the wind power generation assembly and is used to monitor and acquire the wind speed data on the sea, and the second detection member is arranged on the photovoltaic power generation assembly and is used to monitor and acquire the light intensity data on the sea.

[0018] And / or, the controller is further used to:

[0019] when the wind speed data is greater than the second preset wind speed and the illumination intensity data is greater than the first preset illumination intensity, controlling the wind power generation assembly to generate power for power grid power supply.

[0020] In an alternative embodiment, the power consumption load includes key equipment of the offshore intelligent platform; when the wind speed data is less than the second preset wind speed and the illumination intensity data is less than the second preset illumination intensity, the controller is further configured to:

[0021] acquiring the energy storage capacity of the energy storage battery;

[0022] when the energy storage capacity of the energy storage battery is less than the preset capacity, controlling the energy storage battery to only provide power consumption load for the key equipment, the controller and the monitoring assembly.

[0023] In an alternative embodiment, the wind power generation assembly includes:

[0024] a tower cylinder arranged at the top end of the support, a watertight cabin arranged in the bottom end of the tower cylinder, the energy storage battery and the controller arranged in the watertight cabin;

[0025] a wind turbine generator arranged in the tower cylinder.

[0026] In an alternative embodiment, the key equipment includes a first server and a second server, the first server arranged in the sealed cabin of the support, and the second server arranged in the watertight cabin of the tower cylinder.

[0027] In an alternative embodiment, the photovoltaic power generation assembly includes a support platform, the corners of the support platform connected with the supports respectively; a plurality of photovoltaic panels arranged on the support platform; two adjacent supports connected through a horizontal rod, the horizontal rod located below the support platform, a reinforcing member connected between each horizontal rod and the support platform, the reinforcing member arranged in an inverted "V" shape.

[0028] In an alternative embodiment, a reinforcing inclined rod is arranged between each horizontal rod and the support platform, one end of the reinforcing inclined rod connected with the horizontal rod located in the projection area of the horizontal rod in the vertical direction, and the other end of the reinforcing inclined rod connected with the support platform at a position relatively close to the center of the support platform.

[0029] and / or, the support includes a support column, the sealed cabin arranged in the support column, and a mounting member arranged at the bottom end of the support column, the bottom end of the mounting member used for fixing in the seabed.

[0030] In an alternative embodiment, the bottom end of each of the mounts is circumferentially spaced apart with three connecting arms, which are connected to the seabed by mooring;

[0031] And / or, the top end of the support column is provided with a buoy;

[0032] And / or, the middle part of the reinforcing diagonal rod is provided with a buoy;

[0033] And / or, the horizontal rod is spaced apart with multiple buoys along the length direction of the horizontal rod.

[0034] In an alternative embodiment, a support column is arranged between the support platform and the photovoltaic panel, the lower end of the photovoltaic panel is rotationally connected to the top end of the support column, and the photovoltaic panel is driven to rotate and adjust the inclination angle by a rotation adjustment assembly.

[0035] In a second aspect, the present application further provides a control method, which is applied to the offshore wind-solar integrated comprehensive power supply system provided in the first aspect, and the control method comprises:

[0036] Receiving the wind speed data and the light intensity data on the sea sent by the monitoring assembly;

[0037] When the wind speed data is greater than a first preset wind speed, controlling the wind power generation assembly to generate electricity to supply power to the power consumption load and the energy storage battery; when the wind speed data is greater than a second preset wind speed and less than the first preset wind speed, controlling the wind power generation assembly to generate electricity to supply power to the power consumption load;

[0038] When the light intensity data is greater than a first preset light intensity, controlling the photovoltaic power generation assembly to generate electricity to supply power to the power consumption load and the energy storage battery; when the light intensity data is greater than a second preset light intensity and less than the first preset light intensity, controlling the photovoltaic power generation assembly to generate electricity to supply power to the power consumption load;

[0039] When the wind speed data is less than the second preset wind speed and the light intensity data is less than the second preset light intensity, controlling the energy storage battery to provide power consumption load for the power consumption load.

[0040] According to the control method of the present application, at least the following beneficial effects are achieved:

[0041] The wind speed data and the light intensity data on the sea are acquired in real time by monitoring the assembly and delivered to the controller, if the power generation of the wind power generation assembly meets the power load of the power load under the current wind speed environment condition, the wind power generation assembly is preferentially controlled to generate power to supply power to the power load and the excess power is stored in the energy storage battery, if the power generation of the photovoltaic power generation assembly meets the power load of the power load under the current light intensity environment condition, the photovoltaic power generation assembly is preferentially controlled to generate power to supply power to the power load and the excess power is stored in the energy storage battery, the energy storage battery is ensured to store sufficient power, and under extreme conditions, when the sum of the power generation of the wind power generation assembly and the power generation of the photovoltaic power generation assembly cannot meet the power load of the power load, the energy storage battery can be controlled to discharge and complement the wind power generation assembly and the photovoltaic power generation assembly to provide the power load, and the energy storage battery can be controlled to discharge alone to provide the power load, energy is efficiently deployed, especially the use requirement of uninterrupted power supply of the key power load under extreme conditions is met, and the key power load can be stably operated for a long time under complex marine environment. BRIEF DESCRIPTION OF DRAWINGS

[0042] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the specific embodiments or the prior art will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0043] Figure 1 Structure schematic view of a marine wind and light integrated comprehensive power supply system of the present embodiment using a floating type mounting member;

[0044] Figure 2 Structure schematic view of a marine wind and light integrated comprehensive power supply system of the present embodiment using a floating type mounting member; Figure 1

[0045] Figure 3 Structure schematic view of a marine wind and light integrated comprehensive power supply system of the present embodiment using a fixed pile type mounting member;

[0046] Figure 4 Structure schematic view of a marine wind and light integrated comprehensive power supply system of the present embodiment using a fixed pile type mounting member; Figure 3

[0047] Figure 5 Assembly structure schematic view of a photovoltaic panel and a rotating adjustment assembly in the present embodiment.

[0048] Explanation of reference signs:

[0049] 110-first detection member, 120-second detection member;

[0050] ​​210-tower, 220-wind turbine generator;

[0051] 310-support platform, 320-photovoltaic panel, 330-support column, 340-telescopic member, 350-sliding block;

[0052] 410-horizontal rod, 420-stiffener, 430-stiffening diagonal rod, 440-supporting column, 441-buoy, 450-mounting member, 451-connecting arm, 460-mooring. DETAILED DESCRIPTION

[0053] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0054] In the description of the present embodiments, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present embodiments and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present embodiments. In addition, the terms "first", "second", "third" are only for the purpose of description and cannot be understood as indicating or implying relative importance.

[0055] In the description of the present embodiments, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, can be electrically connected; can be directly connected, can be indirectly connected through an intermediate medium, and can be the communication inside two elements. For a person of ordinary skill in the art, the specific meaning of the above terms in the present embodiments can be understood according to the specific circumstances.

[0056] The embodiments of the present application will be described below with reference to the drawings. Figures 1 to 5

[0057] ​According to the offshore wind and light integrated comprehensive power supply system provided by the embodiment of the application, the support assembly is used for being installed offshore, the support assembly comprises at least three support members, and a plurality of support members are arranged at intervals along a set contour; the support assembly is provided with a photovoltaic power generation assembly; the top end of each support member is provided with a wind power generation assembly; an energy storage battery is arranged in the sealed cabin of the support member; the monitoring assembly is used for acquiring wind speed data and light intensity data offshore; the monitoring assembly is electrically connected with a controller, and the controller is used for:

[0058] when the wind speed data is greater than a first preset wind speed, controlling the wind power generation assembly to generate electricity to supply power to the electric load and the energy storage battery; when the wind speed data is greater than a second preset wind speed and less than the first preset wind speed, controlling the wind power generation assembly to generate electricity to supply power to the electric load;

[0059] when the light intensity data is greater than a first preset light intensity, controlling the photovoltaic power generation assembly to generate electricity to supply power to the electric load and the energy storage battery; when the light intensity data is greater than a second preset light intensity and less than the first preset light intensity, controlling the photovoltaic power generation assembly to generate electricity to supply power to the electric load;

[0060] when the wind speed data is less than the second preset wind speed and the light intensity data is less than the second preset light intensity, controlling the energy storage battery to provide the electric load with an electric load.

[0061] The comprehensive power supply system of the embodiment hides the energy storage battery in the sealed cabin of the support member, avoids direct exposure of the energy storage battery to the high-temperature environment outside, is beneficial to prolonging the service life of the energy storage battery, and simultaneously acquires the wind speed data and the light intensity data offshore in real time through the monitoring assembly and transmits the data to the controller; if the power generation amount of the wind power generation assembly meets the electric load of the electric load under the current wind speed environment condition, the wind power generation assembly is preferentially controlled to generate electricity to supply power to the electric load and store the excess power in the energy storage battery; if the power generation amount of the photovoltaic power generation assembly meets the electric load of the electric load under the current light intensity environment condition, the photovoltaic power generation assembly is preferentially controlled to generate electricity to supply power to the electric load and store the excess power in the energy storage battery; the energy storage battery stores sufficient electric energy, and under extreme conditions, when the sum of the power generation amount of the wind power generation assembly and the power generation amount of the photovoltaic power generation assembly cannot meet the electric load of the electric load, the energy storage battery can be controlled to discharge and complement the wind power generation assembly and the photovoltaic power generation assembly to provide the electric load with the electric load, and the energy storage battery can also be controlled to discharge to independently provide the electric load with the electric load, energy is efficiently allocated, and in particular, the use requirement of uninterrupted power supply of the key electric load under extreme conditions is met, so that the key electric load can be stably operated for a long time under complex marine environment.

[0062] It should be noted that the first preset light intensity refers to the light intensity value of the light intensity environment when the photovoltaic power generation assembly has residual power after meeting the power load of the power load; the second preset light intensity refers to the light intensity value of the light intensity environment when the photovoltaic power generation assembly can normally generate power for the power load but has no residual power; the first preset wind speed refers to the wind speed value of the wind speed environment condition when the wind power generation assembly has residual power after meeting the power load of the power load; the second preset wind speed refers to the wind speed value of the wind speed environment condition when the wind power generation assembly can normally generate power for the power load but has no residual power. Specifically, when the wind speed is low or the light is insufficient at night, the controller automatically adjusts the photovoltaic power generation proportion to avoid unstable power supply due to weather changes and improve power supply stability.

[0063] In specific applications, a seawater cooling system is arranged in the sealed cabin, which uses seawater as a cooling medium to take away the heat generated during the operation of the energy storage battery to maintain the normal working temperature of the energy storage battery. Specifically, the sealed cabin is immersed in a non-conductive fluorinated liquid, and the seawater cooling system includes a titanium alloy plate heat exchanger arranged on the inner wall of the sealed cabin. The titanium alloy plate heat exchanger is connected with a cooling pump through a pipeline, and the cooling pump is used to circulate seawater through the titanium alloy plate heat exchanger. The low-temperature seawater exchanges heat with the non-conductive fluorinated liquid during the flow through the titanium alloy plate heat exchanger, thereby taking away the heat generated during the operation of the energy storage battery.

[0064] In specific applications, as shown in Figure 1 and Figure 3 The support assembly includes four support members, which are arranged in a rectangular profile at intervals, so that the four wind power generation assemblies are arranged in a reasonable manner around the rectangular profile, optimizing the efficiency of wind energy utilization while avoiding airflow interference. As another alternative embodiment, the support assembly includes three support members arranged in a triangular profile at intervals. As yet another alternative embodiment, the support assembly includes five support members arranged in a pentagonal profile at intervals. By analogy, the support assembly can also include six, seven, or other numbers of support members.

[0065] In some embodiments, the monitoring component includes a first detection member 110 and a second detection member 120, the first detection member 110 is arranged on the wind power generation component and is used for monitoring and acquiring wind speed data on the sea; the second detection member 120 is arranged on the photovoltaic power generation component and is used for monitoring and acquiring light intensity data on the sea. By arranging the first detection member 110 and the second detection member 120 on the wind power generation component and the photovoltaic power generation component respectively, the wind speed environment condition of the area where the wind power generation component is located can be more accurately acquired, and the light intensity environment condition of the area where the photovoltaic power generation component is located can be more accurately acquired, thereby more facilitating the controller to realize efficient energy deployment.

[0066] In a specific application, the first detection member 110 is arranged as a wind speed meter, and the second detection member 120 is arranged as a light sensor.

[0067] In some embodiments, the power load includes a key device of the offshore intelligent platform; when the wind speed data is less than a second preset wind speed and the light intensity data is less than a second preset light intensity, the controller is further used for:

[0068] acquiring the energy storage capacity of the energy storage battery;

[0069] when the energy storage capacity of the energy storage battery is less than a preset capacity, controlling the energy storage battery to provide power load only for the key device, the controller and the monitoring component.

[0070] The integrated power supply system of the embodiment can acquire the energy storage capacity of the energy storage battery in real time during the process that the wind power generation component and the photovoltaic power generation component cannot normally generate electricity and only rely on the discharge of the energy storage battery to provide power load for the power load, stop power supply to other power loads when the energy storage capacity of the energy storage battery is less than a preset capacity, preferentially supply power to the key device, the controller and the monitoring component, and cut off unnecessary power load when power is tight, so as to meet the use requirement of uninterrupted power supply of the key device under extreme conditions, and enable the key device to run stably for a long time under complex marine environment.

[0071] It should be noted that the preset capacity refers to a capacity value corresponding to the case that the energy storage battery cannot discharge for a long time to provide power load for all power loads.

[0072] In a specific application, the offshore intelligent platform includes at least one of an offshore data center, an ocean communication base station and a marine monitoring station.

[0073] Specifically, the key device includes an intelligent sensing network, realizes the fusion of energy storage and computing functions, and provides support for offshore data processing, communication and energy management; at the same time, an alarm signal is sent to a remote operation and maintenance center when the energy storage capacity of the energy storage battery is less than a preset capacity.

[0074] AsFigures 1 to 4 As shown, in some embodiments, the wind power generation assembly includes a tower 210 and a wind turbine generator set 220 arranged on the tower 210, the tower 210 is arranged at the top end of the support, and a watertight cabin is arranged in the bottom end of the tower 210, and the energy storage battery and the controller are arranged in the watertight cabin. By also arranging an energy storage battery in the watertight cabin, it is more conducive to improving space utilization to maximize energy collection and storage efficiency and improve energy storage and scheduling capability, thereby facilitating the long-term stable operation of the key equipment in a complex marine environment. At the same time, by hiding the controller in the watertight cabin of the tower 210, the controller is prevented from being directly exposed to the high-temperature environment outside, which is conducive to prolonging the service life of the controller.

[0075] In specific applications, a seawater cooling system is arranged in the watertight cabin, seawater is used as a cooling medium, and heat generated during the operation of the energy storage battery and the controller is taken away through circulating flow to maintain the normal working temperature of the energy storage battery and the controller. Specifically, the watertight cabin is immersed with non-conductive fluorinated liquid, the seawater cooling system includes a titanium alloy plate heat exchanger arranged on the inner wall of the watertight cabin, the titanium alloy plate heat exchanger is connected with a cooling pump through a pipeline, and the cooling pump is used to circulate seawater through the titanium alloy plate heat exchanger. The low-temperature seawater exchanges heat with the non-conductive fluorinated liquid during the flow through the titanium alloy plate heat exchanger, thereby taking away the heat generated during the operation of the energy storage battery and the controller.

[0076] As shown in Figure 2 and Figure 4 Specifically, the first detection member 110 is arranged on the fan hub of the wind turbine generator set 220.

[0077] Specifically, the key equipment includes a first server and a second server, the first server is arranged in the sealed cabin of the support, and the second server is arranged in the watertight cabin of the tower 210. By so arranging, it is conducive to improving space utilization and placing more key equipment, thereby facilitating offshore data processing, communication and energy management.

[0078] It can be understood that the watertight cabin and the sealed cabin of the present embodiment are both provided with a seawater cooling system, which can use seawater as a cooling medium to take away the heat generated during the operation of the first server and the second server through circulating flow to maintain the normal working temperature of the first server and the second server and prolong the service life.

[0079] It should be noted that the tower 210 has a salt mist corrosion resistant design.

[0080] In some embodiments, the controller is further used for:

[0081] When the wind speed data is greater than the second preset wind speed and the illumination intensity data is greater than the first preset illumination intensity, the wind power generation assembly is controlled to generate power for the power grid.

[0082] The embodiment is parallelly connected with the land power grid or other offshore micro power grid, and if the current power generation amount of the photovoltaic power generation assembly meets the power consumption load of the power consumption load and has surplus power, the photovoltaic power generation assembly is preferentially controlled to generate power for the power consumption load and store the surplus power in the energy storage battery, and the wind power generation assembly is controlled to be connected with the power grid, and the power generated by the wind power generation assembly is provided to the power grid, thereby improving the stability and expansibility of energy utilization.

[0083] It should be noted that if the embodiment is applied to the offshore area, the wind power generation assembly is parallelly connected with the land power grid, and if the embodiment is applied to the open sea, the wind power generation assembly is parallelly connected with other offshore micro power grid.

[0084] In some embodiments, the controller is further configured to:

[0085] When the illumination intensity data is less than the first preset illumination intensity and greater than the second preset illumination intensity, and the wind speed data is greater than the first preset wind speed, the wind power generation assembly is controlled to generate power for the power consumption load and the energy storage battery, and the photovoltaic power generation assembly is controlled to generate power for the energy storage battery.

[0086] The embodiment preferentially utilizes the wind power generation assembly to generate power for the power consumption load under the condition that the wind resource is rich and the illumination resource is general, thereby improving the stability of power supply for the power consumption load, and utilizing the power generated by the photovoltaic power generation assembly and the wind power generation assembly to complement the power for the energy storage battery after the power consumption load is supplied.

[0087] As shown in Figure 1 and Figure 3 In some embodiments, the photovoltaic power generation assembly includes a support platform 310, the corners of the support platform 310 are respectively connected with the supports; a plurality of photovoltaic panels 320 are arranged on the support platform 310; two adjacent supports are connected through a horizontal rod 410, the horizontal rod 410 is located below the support platform 310, a reinforcing member 420 is connected between each horizontal rod 410 and the support platform 310, and the reinforcing member 420 is arranged in an inverted "V" shape. The two adjacent supports are connected through the horizontal rod 410, and the reinforcing member 420 is arranged between each horizontal rod 410 and the support platform 310, so that a spatial net-like truss structure is formed between the support assembly and the support platform 310, the rigidity and stability of the overall structure are improved, the wind and wave resistance is enhanced, and the long-term stable operation of the system in the complex marine environment is ensured.

[0088] Specifically, a reinforcing inclined rod 430 is arranged between each of the horizontal rods 410 and the support platform 310, one end of the reinforcing inclined rod 430 connected with the horizontal rod 410 is located within the projection area of the reinforcing member 420 along the vertical direction, and one end of the reinforcing inclined rod 430 is connected to the support platform 310 at a position relatively close to the center of the support platform 310. The bottom overhanging position of the support platform 310 is supported by the reinforcing inclined rod 430, which is more conducive to improving the rigidity and stability of the overall structure, enhancing the wind and wave resistance, and thus ensuring long-term stable operation of the system in the complex marine environment.

[0089] More specifically, the connection nodes of the reinforcing inclined rod 430 and the horizontal rod 410 and the connection nodes of the reinforcing member 420 and the support platform 310 overlap with each other in the vertical direction.

[0090] As shown in Figure 1 Specifically, the second detection member 120 is arranged at the positions around the top end of the support platform 310.

[0091] Specifically, the support member includes a support column 440, the sealing cabin is arranged in the support column 440, and the bottom end of the support column 440 is provided with a mounting member 450, and the bottom end of the mounting member 450 is used for fixing in the seabed. The four mounting members 450 arranged in a rectangular contour are respectively fixed in the seabed, which is conducive to increasing the wind and wave resistance.

[0092] As shown in Figure 1 and Figure 2 In some embodiments, the integrated power supply system of the present embodiment is applied to the open sea area, and the bottom end of each of the mounting members 450 is circumferentially spaced apart by three connecting arms 451, and the connecting arms 451 are connected to the seabed by a mooring 460; the wind power generation assembly and the photovoltaic power generation assembly are safely and stably fixed in the predetermined sea area by the mooring 460, resist environmental loads such as wind and waves, prevent drifting or collision, while allowing necessary freedom of movement to relieve extreme loads, and ensuring long-term stable operation in the extreme open sea marine environment.

[0093] Specifically, the top end of the support column 440 is provided with a float 441, the middle part of the reinforcing inclined rod 430 is provided with a float 441, and a plurality of floats 441 are arranged on the horizontal rod 410 along the length direction of the horizontal rod 410, and preferably four floats 441 are arranged on the horizontal rod 410 along the length direction of the horizontal rod 410; the buoyancy adjustment performance of the float 441 can allow necessary freedom of movement in multiple directions to relieve extreme loads, and ensure long-term stable operation in the extreme open sea marine environment.

[0094] More specifically, the connection of the reinforcing member 420 and the horizontal rod 410 is located between two adjacent floating buoys 441.

[0095] In specific applications, the number of floating buoys 441 arranged on the horizontal rod 410 is reasonably increased or decreased according to the length of the horizontal rod 410, for example, in other embodiments, two, three, five, six or the like number of floating buoys 441 are arranged on the horizontal rod 410 at intervals.

[0096] As shown in the drawings, Figure 5 In some embodiments, a support column 330 is arranged between the support platform 310 and the photovoltaic panel 320, the lower middle end of the photovoltaic panel 320 is rotatably connected to the top end of the support column 330, and the photovoltaic panel 320 is driven to rotate and adjust the inclination angle by a rotating adjustment assembly. The inclination angle of the photovoltaic panel 320 is adjusted by the rotating adjustment assembly to adapt to different solar elevation angles and improve the photovoltaic power generation efficiency.

[0097] Specifically, the rotating adjustment assembly includes a telescopic member 340, one end of the telescopic member 340 is hinged to the side wall of the support column 330, and the telescopic end of the telescopic member 340 is hinged with a sliding block 350, the sliding block 350 is arranged at the bottom end of the photovoltaic panel 320 along the length direction of the photovoltaic panel 320. By so arranging, when it is necessary to adjust the inclination angle of the photovoltaic panel 320, the telescopic end of the telescopic member 340 is started to be telescoped, so that the sliding block 350 moves relative to the photovoltaic panel 320 and pushes the photovoltaic panel 320 to turn up or pushes the photovoltaic panel 320 to turn down, thereby automatically adjusting the inclination angle of the photovoltaic panel 320.

[0098] In specific applications, the telescopic member 340 is arranged as a pneumatic cylinder or an electric cylinder.

[0099] As shown in the drawings, Figure 3 and Figure 4 In some embodiments, the integrated power supply system of the present embodiment is applied to offshore areas with relatively shallow water depth and stable geological conditions; the mounting member 450 is arranged as a fixed pile, and the bottom end of the fixed pile is provided with a pointed end to stably install the present embodiment in the offshore area for use.

[0100] In specific applications, the present embodiment can be applied to island communities, coastal tourist areas and marine ranches, etc., which can resist tropical marine environment erosion and realize efficient energy allocation, thereby providing stable and low-carbon power support for the above-mentioned scenarios.

[0101] According to the second aspect of the embodiments of the present application, a control method is also provided, which is applied to the offshore wind-light integrated comprehensive power supply system provided by the first aspect of the embodiments of the present application, and the control method comprises:

[0102] receiving the wind speed data and the light intensity data on the sea sent by the monitoring assembly;

[0103] when the wind speed data is greater than a first preset wind speed, controlling the wind power generation assembly to generate electricity to power the electrical load and the energy storage battery; when the wind speed data is greater than a second preset wind speed and less than the first preset wind speed, controlling the wind power generation assembly to generate electricity to power the electrical load;

[0104] when the light intensity data is greater than a first preset light intensity, controlling the photovoltaic power generation assembly to generate electricity to power the electrical load and the energy storage battery; when the light intensity data is greater than a second preset light intensity and less than the first preset light intensity, controlling the photovoltaic power generation assembly to generate electricity to power the electrical load;

[0105] when the wind speed data is less than the second preset wind speed and the light intensity data is less than the second preset light intensity, controlling the energy storage battery to provide the electrical load with an electrical load.

[0106] The control method of the embodiment acquires wind speed data and light intensity data on the sea in real time through the monitoring assembly and transmits the data to the controller. If the amount of electricity generated by the wind power generation assembly under the current wind speed environment condition meets the electrical load of the electrical load, the wind power generation assembly is preferentially controlled to generate electricity to power the electrical load and the excess electricity is stored in the energy storage battery. If the amount of electricity generated by the photovoltaic power generation assembly under the current light intensity environment condition meets the electrical load of the electrical load, the photovoltaic power generation assembly is preferentially controlled to generate electricity to power the electrical load and the excess electricity is stored in the energy storage battery. The energy storage battery is ensured to store sufficient electrical energy. Under extreme conditions, when the sum of the amount of electricity generated by the wind power generation assembly and the amount of electricity generated by the photovoltaic power generation assembly cannot meet the electrical load of the electrical load, the energy storage battery can be controlled to discharge and complement the wind power generation assembly and the photovoltaic power generation assembly to provide the electrical load with an electrical load, or the energy storage battery can be controlled to discharge alone to provide the electrical load with an electrical load, realizing efficient energy allocation, especially meeting the use requirement of uninterrupted power supply of the key electrical load under extreme conditions, and enabling the key electrical load to operate stably for a long time under complex marine environment.

[0107] In some embodiments, the control method further comprises the following steps:

[0108] when the wind speed data is less than the second preset wind speed and the light intensity data is less than the second preset light intensity, acquiring the energy storage capacity of the energy storage battery;

[0109] when the energy storage capacity of the energy storage battery is less than a preset capacity, controlling the energy storage battery to provide only the key device, the controller and the monitoring assembly with an electrical load.

[0110] The control method of the embodiment acquires the energy storage capacity of the energy storage battery in real time in the process that the wind power generation assembly and the photovoltaic power generation assembly cannot generate electricity normally and only rely on the discharge of the energy storage battery to provide power load for the power load, stops power supply to other power loads when the energy storage capacity of the energy storage battery is less than the preset capacity, preferentially supplies power to the key equipment, the controller and the monitoring assembly, and reduces unnecessary power load when power is tight, meets the use requirement of uninterrupted power supply of the key equipment under extreme conditions, and enables the key equipment to operate stably for a long time in a complex marine environment.

[0111] In some embodiments, the control method further includes the following steps:

[0112] When the wind speed data is greater than the second preset wind speed and the illumination intensity data is greater than the first preset illumination intensity, the wind power generation assembly is controlled to generate electricity to supply power to the power grid.

[0113] The embodiment parallelly connects the wind power generation assembly with the land power grid or other offshore micro power grid, preferentially controls the photovoltaic power generation assembly to generate electricity to supply power to the power load and store the excess electricity in the energy storage battery when the generated electricity of the photovoltaic power generation assembly meets the power load of the power load and there is excess electricity, and controls the wind power generation assembly to be connected with the power grid, and provides the generated electricity of the wind power generation assembly to the power grid, thereby improving the stability and expansibility of energy utilization.

[0114] In some embodiments, the control method further includes the following steps:

[0115] When the illumination intensity data is less than the first preset illumination intensity and greater than the second preset illumination intensity, and the wind speed data is greater than the first preset wind speed, the wind power generation assembly is controlled to generate electricity to supply power to the power load and the energy storage battery, and the photovoltaic power generation assembly is controlled to generate electricity to supply power to the energy storage battery.

[0116] The embodiment preferentially utilizes the wind power generation assembly to generate electricity to supply power to the power load under the condition that the wind resource is rich and the illumination resource is general, improves the stability of power supply to the power load, and utilizes the generated electricity of the photovoltaic power generation assembly and the generated electricity of the wind power generation assembly to supply power to the power load to complementarily supply power to the energy storage battery.

[0117] Specifically, the control method further includes the following steps:

[0118] When the illumination intensity data is less than the first preset illumination intensity and greater than the second preset illumination intensity, and the wind speed data is greater than the first preset wind speed, the energy storage capacity of the energy storage battery is acquired;

[0119] When the energy storage capacity of the energy storage battery reaches the maximum capacity, the photovoltaic power generation assembly is controlled to generate electricity to supply power to the power grid.

[0120] The embodiment connects the photovoltaic power generation assembly in parallel with the land power grid or other offshore micro power grid. If the power generation amount of the current wind power generation assembly meets the power load of the power consumption load and the energy storage battery is fully charged, the photovoltaic power generation assembly is preferentially controlled to be connected with the power grid, and the power generated by the photovoltaic power generation assembly is provided to the power grid, thereby improving the stability and expansibility of energy utilization.

[0121] It should be noted that the maximum capacity refers to the capacity corresponding to the fully charged energy storage battery.

[0122] In some embodiments, the control method further comprises the following steps:

[0123] When the light intensity data is greater than the second preset light intensity and less than the first preset light intensity, and the wind speed data is greater than the second preset wind speed and less than the first preset wind speed, the wind power generation assembly is controlled to generate power for the power consumption load, and the photovoltaic power generation assembly is controlled to generate power for the energy storage battery.

[0124] Although the embodiments of the present application are described in conjunction with the accompanying drawings, various modifications and changes can be made by those skilled in the art without departing from the spirit and scope of the present application, and such modifications and changes fall within the scope defined by the appended claims.

Claims

1. An offshore wind-solar integrated comprehensive power supply system, characterized in that, The application relates to a support assembly, a power load, a photovoltaic power generation assembly, a wind power generation assembly, an energy storage battery, a monitoring assembly and a controller. The support assembly is arranged on the sea and comprises at least three support members which are arranged at intervals along a set contour. The power load is arranged on the support assembly. The wind power generation assembly is arranged on the top end of the support member. The energy storage battery is arranged in a sealed cabin of the support member. The monitoring assembly acquires wind speed data and light intensity data on the sea. The controller is electrically connected with the monitoring assembly. When the wind speed data is greater than a first preset wind speed, the controller controls the wind power generation assembly to generate power for the power load and the energy storage battery. When the light intensity data is greater than a first preset light intensity, the controller controls the photovoltaic power generation assembly to generate power for the power load and the energy storage battery. When the wind speed data is less than a second preset wind speed and the light intensity data is less than a second preset light intensity, the controller controls the energy storage battery to provide power for the power load. The monitoring assembly comprises a first detection member (110) and a second detection member (120).

2. The offshore wind-solar integrated comprehensive power supply system according to claim 1, characterized in that, The first detection member (110) is arranged on the wind power generation assembly and is used for monitoring and acquiring the wind speed data on the sea. The second detection member (120) is arranged on the photovoltaic power generation assembly and is used for monitoring and acquiring the light intensity data on the sea. The controller is also used for controlling the wind power generation assembly to generate power for a power grid when the wind speed data is greater than the second preset wind speed and the light intensity data is greater than the first preset light intensity.

3. The offshore wind-solar integrated comprehensive power supply system according to claim 1, characterized in that, The power load comprises key equipment of an intelligent offshore platform. When the wind speed data is less than the second preset wind speed and the light intensity data is less than the second preset light intensity, the controller is also used for acquiring the energy storage capacity of the energy storage battery. When the energy storage capacity of the energy storage battery is less than a preset capacity, the controller controls the energy storage battery to only provide power for the key equipment, the controller and the monitoring assembly.

4. The offshore wind-solar integrated comprehensive power supply system according to claim 3, characterized in that, The wind power generation assembly comprises a tower (210) arranged on the top end of the support member. The tower (210) is provided with a watertight cabin at the bottom end. The watertight cabin is provided with the energy storage battery and the controller.

5. The offshore wind-solar integrated comprehensive power supply system according to claim 4, characterized in that, The key equipment comprises a first server and a second server. The first server is arranged in a sealed cabin of the support member. The second server is arranged in the watertight cabin of the tower (210).

6. The offshore wind-solar integrated comprehensive power supply system according to claim 1, characterized in that, The photovoltaic power generation assembly comprises a support platform (310), the corners of the support platform (310) are connected with the supports respectively, a plurality of photovoltaic panels (320) are arranged on the support platform (310), two adjacent supports are connected through a horizontal rod (410), the horizontal rod (410) is located below the support platform (310), a reinforcing piece (420) is connected between each horizontal rod (410) and the support platform (410), and the reinforcing piece (420) is arranged in an inverted V shape.

7. The offshore wind-solar integrated comprehensive power supply system according to claim 6, characterized in that, A reinforcing inclined rod (430) is arranged between each horizontal rod (410) and the support platform (310), one end of the reinforcing inclined rod (430) connected with the horizontal rod (410) is located in a projection area of the reinforcing piece (420) falling in a vertical direction on the horizontal rod (410), and one end of the reinforcing inclined rod (430) is connected to the support platform (310) at a position relatively close to the center of the support platform (310); The support comprises a support column (440), the support column (440) is internally provided with the sealed cabin, and a mounting piece (450) is arranged at the bottom end of the support column (440), and the bottom end of the mounting piece (450) is used for being fixed to the seabed.

8. The offshore wind-solar integrated comprehensive power supply system according to claim 7, characterized in that, Three connecting arms (451) are circumferentially and spacedly arranged at the bottom end of each mounting piece (450), and the connecting arms (451) are connected to the seabed through mooring (460); The top end of the support column (440) is provided with a buoy (441); The middle part of the reinforcing inclined rod (430) is provided with a buoy (441); A plurality of buoys (441) are spacedly arranged on the horizontal rod (410) along the length direction of the horizontal rod (410).

9. The offshore wind-solar integrated general power supply system according to claim 6, characterized in that, A support column (330) is arranged between the support platform (310) and the photovoltaic panel (320), the lower end of the photovoltaic panel (320) is rotationally connected to the top end of the support column (330), and the photovoltaic panel (320) is driven to rotate and adjust the inclination angle by a rotation adjusting assembly.

10. A control method characterized by, The control method is applied to the offshore wind and light integrated comprehensive power supply system in any one of claims 1 to 9, and the control method comprises: Receiving wind speed data and light intensity data on the sea sent by a monitoring assembly; When the wind speed data is greater than a first preset wind speed, controlling a wind power generation assembly to generate power for power consumption load and energy storage battery; when the wind speed data is greater than a second preset wind speed and less than the first preset wind speed, controlling the wind power generation assembly to generate power for the power consumption load; When the light intensity data is greater than a first preset light intensity, controlling a photovoltaic power generation assembly to generate power for the power consumption load and the energy storage battery; when the light intensity data is greater than a second preset light intensity and less than the first preset light intensity, controlling the photovoltaic power generation assembly to generate power for the power consumption load; When the wind speed data is less than the second preset wind speed and the light intensity data is less than the second preset light intensity, controlling the energy storage battery to provide power consumption load for the power consumption load.

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