Offshore power generation system and layout method for offshore power generation system

Abstract

The invention provides an offshore power generation system and a layout method of the offshore power generation system, the offshore power generation system comprises a wind power plant, a wave energy power generation plant and an offshore booster station, the wave facing sides of a plurality of wave energy power generation devices face the main wave direction in the area where the wind power plant is located so as to convert wave energy of waves into electric energy, the main wave direction is determined on the basis that the wave energy is larger than the wave direction in other directions, the electric energy generated by the wind power plant and the electric energy generated by the wave energy power plant are both conveyed to the offshore booster station, and the offshore booster station boosts the received electric energy and outputs the boosted electric energy to the shore. According to the offshore power generation system and the layout method of the offshore power generation system, the problems that the cost of independent power generation of a wave energy power generation device is high and the sea area energy utilization rate is low are solved, complementation and cooperation of dual-energy power generation can be achieved, and the overall utilization rate of sea area energy is increased.

Description

Technical Field

[0001] The present disclosure relates to the field of renewable energy power generation, and more specifically, to an offshore power generation system and a layout method of the offshore power generation system. Background Art

[0002] With the growing demand for energy and the urgent expectation for environmental protection, the development of new energy power generation technology is imminent. Among them, power generation technology that utilizes environmentally clean and renewable energy such as solar energy, wind energy and wave energy is increasingly attracting widespread attention from all walks of life.

[0003] Compared with wind power generation and solar power generation, wave power generation technology has unique advantages, for example, wave energy has a higher energy density, stronger power generation capacity, and is basically unaffected by weather. However, among related technologies, the research on wave power generation technology is still relatively slow. In the independent development model of wave power generation devices, the investment cost for structures such as power transmission and grid-connected facilities is high, and the power of the single equipment of the wave power generation device is low, and the unit power generation power has a low area utilization rate of the sea area, resulting in a low sea area energy utilization rate for wave power generation and a high overall power generation cost. Summary of the invention

[0004] In view of the problems of high cost of independent power generation of wave energy power generation devices and low sea area energy utilization rate in existing new energy power generation solutions, the present disclosure provides an offshore power generation system and a layout method of the offshore power generation system.

[0005] A first aspect of the present disclosure provides an offshore power generation system, the offshore power generation system comprising a wind farm, a wave power farm and an offshore booster station, the wind farm comprising a plurality of wind turbines, the wave power farm comprising a plurality of wave power generation devices, the wave-facing sides of the plurality of wave power generation devices facing the main wave direction in the area where the wind farm is located, so as to convert wave energy of waves into electrical energy, wherein the main wave direction is determined based on a wave direction in which the wave energy is greater than that in other directions, the electrical energy generated by the wind farm and the electrical energy generated by the wave power farm are both transmitted to the offshore booster station, the offshore booster station boosts the received electrical energy, and outputs the boosted electrical energy to the shore.

[0006] Optionally, the offshore power generation system includes multiple power generation subsystems, each power generation subsystem includes one wind turbine and at least one wave energy power generation device, each wave energy power generation device in the power generation subsystem is arranged on the side of the corresponding wind turbine facing the main wave direction, each wave energy power generation device in the power generation subsystem is connected to the corresponding wind turbine to send electric energy to the corresponding wind turbine, the wind turbine in the power generation subsystem collects the electric energy received from the corresponding wave energy power generation device and the electric energy generated by itself, and sends the collected electric energy to the offshore booster station.

[0007] Optionally, the wave energy power plant is arranged on a side of the wind farm facing the main wave direction.

[0008] Optionally, the projected length of the wind farm in the direction perpendicular to the main wave direction is less than or equal to the projected length of the wave energy power plant in the direction perpendicular to the main wave direction.

[0009] Optionally, the wave energy power generation device is used for at least one of the following items: as a temporary power source during the commissioning of the wind turbine generator set; as a backup power source in the event of a failure of the wind turbine generator set; for charging an energy storage device of the wind turbine generator set; as a construction power source during the installation of the wind turbine generator set; or for powering auxiliary equipment within the wind turbine generator set.

[0010] A second aspect of the present disclosure provides a layout method for an offshore power generation system according to an embodiment of the present disclosure, the layout method comprising: acquiring wave environment data of an area where a wind farm is located, wind farm arrangement data of the wind farm, and device performance of a wave energy power generation device to be arranged; determining arrangement parameters of the wave energy power farm based on the wave environment data, the wind farm arrangement data, and the device performance; determining the wave transmittance of the wave energy power farm based on the arrangement parameters; determining the wave parameters of a wave reaching the wind farm after passing through the wave energy power farm based on a wave field model corresponding to the wave environment data, the wave transmittance, and a positional relationship between the wave energy power farm and the wind farm; adjusting the arrangement parameters and / or the positional relationship based on the wave parameters until the wave parameters meet the wave design requirements of the wind farm; and determining the arrangement parameters and the positional relationship corresponding to the wave parameters meeting the wave design requirements as the layout of the offshore power generation system.

[0011] Optionally, the layout method also includes: acquiring wave monitoring data monitored on site; updating the wave field model based on the wave monitoring data to obtain a revised wave field model; determining current wave parameters based on the revised wave field model and the current layout of the offshore power generation system; in response to the current wave parameters not meeting the wave design requirements, adjusting the layout of the offshore power generation system by adjusting the arrangement parameters and / or the positional relationship until the wave parameters meet the wave design requirements.

[0012] Optionally, the layout method also includes: obtaining system requirements of the offshore power generation system, wherein the system requirements include operation and maintenance requirements and / or power generation requirements; determining current wave parameters based on the wave environment data, the system requirements and the current layout of the offshore power generation system; in response to the current wave parameters not meeting the wave design requirements, adjusting the layout of the offshore power generation system by adjusting the arrangement parameters and / or the positional relationship until the wave parameters meet the wave design requirements.

[0013] Optionally, the arrangement parameters include at least one of the following items: the spacing between the wave energy power generation devices; the number of rows of the wave energy power generation devices; the number of columns of the wave energy power generation devices; the coverage of the wave energy power generation devices; the arrangement direction of the wave energy power generation devices; the number of the wave energy power generation devices, and the position relationship includes at least one of the following items: the field-level position relationship between the wave energy power plant and the wind farm; the spacing between the wave energy power generation devices in the wave energy power plant and the wind turbines in the wind farm.

[0014] Optionally, the arrangement parameters and / or the positional relationship are adjusted in the following manner: in response to the wave energy farm being used for wave breaking purposes, the arrangement parameters and / or the positional relationship are adjusted by first adjusting a first parameter and then adjusting a second parameter, wherein the first parameter includes the spacing between the wave energy power generation devices and / or the coverage range, and the second parameter includes at least one of the number of rows of the wave energy power generation devices, the number of columns of the wave energy power generation devices, the arrangement direction of the wave energy power generation devices, the number of the wave energy power generation devices, and the positional relationship; in response to the wave energy power farm being used for power generation purposes, the arrangement parameters and / or the positional relationship are adjusted by first adjusting a third parameter and then adjusting a fourth parameter, wherein the third parameter includes the number of rows, the number of columns and / or the number of the wave energy power generation devices, and the fourth parameter includes at least one of the spacing between the wave energy power generation devices, the coverage range of the wave energy power generation devices, the arrangement direction of the wave energy power generation devices, and the positional relationship.

[0015] According to the offshore power generation system and the layout method of the offshore power generation system disclosed in the present invention, a wind farm, a wave power farm and an offshore booster station can be arranged in the offshore power generation system, and the wave-facing side of the wave power generation device is oriented toward the main wave direction in the area where the wind farm is located, so that the wave energy can be converted into electrical energy, and the wave power generation device can absorb and eliminate waves to reduce the impact of wave energy on the load impact of the wind farm. In addition, the electrical energy generated by the wind farm and the electrical energy generated by the wave power farm are both transmitted to the offshore booster station to be transmitted to the shore, realizing the complementarity and coordination of dual energy power generation, solving the cost problem of wave power generation alone, and improving the overall utilization rate of marine energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 and Figure 2 is a schematic diagram illustrating an offshore power generation system according to an exemplary embodiment of the present disclosure.

[0017] Figure 3 is a schematic diagram illustrating determination of a main wave direction according to an exemplary embodiment of the present disclosure.

[0018] Figure 4 is a schematic layout diagram showing an example of an offshore power generation system according to an exemplary embodiment of the present disclosure.

[0019] Figure 5 is a layout diagram showing another example of an offshore power generation system according to an exemplary embodiment of the present disclosure.

[0020] Figure 6 is a schematic layout diagram showing still another example of an offshore power generation system according to an exemplary embodiment of the present disclosure.

[0021] Figure 7 is a schematic layout diagram showing yet another example of an offshore power generation system according to an exemplary embodiment of the present disclosure.

[0022] Figure 8 is a schematic flow chart illustrating a layout method of an offshore power generation system according to an exemplary embodiment of the present disclosure.

[0023] Fig. 9 1 is a schematic diagram showing simulation of marine environment data in a layout method of an offshore power generation system according to an exemplary embodiment of the present disclosure.

[0024] Fig.10 is a schematic diagram showing an example simulation flow of a layout method of an offshore power generation system according to an exemplary embodiment of the present disclosure.

[0025] Fig.11 is a schematic flow chart showing an example of adjusting the system layout in the layout method of the offshore power generation system according to an exemplary embodiment of the present disclosure.

[0026] Fig.12 is a schematic diagram showing an example simulation process of adjusting the system layout in the layout method of the offshore power generation system according to an exemplary embodiment of the present disclosure.

[0027] Fig.13 is a schematic flowchart showing another example of adjusting the system layout in the layout method of the offshore power generation system according to the exemplary embodiment of the present disclosure.

[0028] Fig.14 is a schematic diagram showing another example simulation flow of adjusting the system layout in the layout method of the offshore power generation system according to an exemplary embodiment of the present disclosure. DETAILED DESCRIPTION

[0029] The following specific embodiments are provided to help the reader obtain a comprehensive understanding of the methods, devices and / or systems described herein. However, after understanding the disclosure of the present application, various changes, modifications and equivalents of the methods, devices and / or systems described herein will be clear. For example, the order of operations described herein is only an example and is not limited to those orders set forth herein, but can be changed as will be clear after understanding the disclosure of the present application, except for operations that must occur in a specific order. In addition, for greater clarity and simplicity, the description of features known in the art may be omitted.

[0030] The features described herein can be implemented in different forms and should not be construed as being limited to the examples described herein. Rather, the examples described herein have been provided to illustrate only some of the many possible ways to implement the methods, devices, and / or systems described herein, which will be clear after understanding the disclosure of the present application.

[0031] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more.

[0032] Although terms such as "first", "second", and "third" may be used herein to describe various members, components, regions, layers, or portions, these members, components, regions, layers, or portions should not be limited by these terms. Instead, these terms are only used to distinguish one member, component, region, layer, or portion from another member, component, region, layer, or portion. Therefore, without departing from the teachings of the examples described herein, the first member, first component, first region, first layer, or first portion referred to in the examples may also be referred to as the second member, second component, second region, second layer, or second portion.

[0033] In the specification, when an element (such as a layer, a region, or a substrate) is described as being “on”, “connected to”, or “coupled to” another element, the element may be directly “on”, “connected to”, or “coupled to” another element, or one or more other elements may be present therebetween. Conversely, when an element is described as being “directly on”, “directly connected to”, or “directly coupled to” another element, there may be no other elements present therebetween.

[0034] The terms used herein are only used to describe various examples and are not intended to limit the disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms "comprise", "include" and "have" indicate the presence of the described features, quantities, operations, components, elements and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements and / or combinations thereof.

[0035] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as those generally understood by a person of ordinary skill in the art to which the present disclosure belongs after understanding the present disclosure. Unless explicitly defined as such herein, terms (such as those defined in a general dictionary) should be interpreted as having a meaning consistent with their meaning in the context of the relevant art and the present disclosure, and should not be interpreted in an idealized or overly formal manner.

[0036] Furthermore, in the description of examples, when it is considered that a detailed description of a well-known related structure or function would cause vague interpretation of the present disclosure, such a detailed description will be omitted.

[0037] As mentioned above, with the growing demand for energy, various new energy generation technologies have attracted widespread attention from all walks of life. For example, with the development of low-power wireless sensors, environmentally clean renewable energy such as solar energy, wind energy and wave energy can be used to generate micro power supplies to provide power for sensor nodes. Among new energy generation technologies, compared with wind power generation and solar power generation, wave power generation technology still has problems such as high investment cost and low power of single equipment, resulting in low energy utilization rate in the sea area and high overall power generation cost.

[0038] Specifically, compared with the development of wind and solar energy technologies, the development of wave energy generation technology is relatively backward, but wave energy has its unique advantages. Compared with wind energy, wave energy has a high energy density, which may be 4 to 30 times that of wind energy; compared with solar energy, wave energy is basically not affected by weather, making power generation more sustainable and stable.

[0039] Based on these unique advantages of wave energy, some wave energy power generation devices have been developed, such as oscillating float wave energy power generation devices, ratchet wave energy power generation devices, etc. However, in the independent development model of these wave energy power generation devices, since wave energy requires independent supporting structures or mooring devices, the cost of power generation per kilowatt is relatively high. In addition, considering the independent application of wave energy power plants in batches, wave energy generators need to consider the investment in power transmission and grid-connected facilities, which can include submarine cables, offshore booster stations and other equipment. Such investment is allocated to each wave energy power generation device, which will lead to a further increase in the cost of power generation per kilowatt. In addition, the power of the single device of the current wave energy power generation device is low, and the area utilization rate of the unit power generation power to the sea area is low, which is not economical for the comprehensive use of the sea area.

[0040] In view of the above problems, exemplary embodiments of the present disclosure provide an offshore power generation system and a layout method of an offshore power generation system to solve or alleviate at least one of the above problems. Exemplary embodiments of the present disclosure will be described below with reference to the accompanying drawings.

[0041] According to a first aspect of the present disclosure, an offshore power generation system is provided.

[0042] like Figure 1 and Figure 2 As shown, an offshore power generation system according to an exemplary embodiment of the present disclosure may include a wind farm 100, a wave energy farm 200 and an offshore booster station 300. The wind farm includes a plurality of wind turbine generator sets 110 ( Figures 4 to 6 ), the wave energy power plant includes a plurality of wave energy power generation devices 210 ( Figures 4 to 6 ).

[0043] The wave-facing sides of the plurality of wave energy power generation devices 210 may face the main wave direction in the area where the wind farm 100 is located, so as to convert the wave energy of the waves into electrical energy.

[0044] Here, the wave-facing side may refer to the side of the wave energy power generation device 210 that receives waves. When the incoming waves reach the wave-facing side, the wave energy power generation device 210 may absorb the wave energy and convert the wave energy into electrical energy.

[0045] The wave may continue to propagate forward after passing through the wave energy power generation device 210, but the wave energy will be reduced compared to before passing through the wave energy power generation device 210. Therefore, the wave energy power generation device 210 can also be regarded as a wave absorbing device. Since the wave energy power generation device 210 can absorb and eliminate waves, here, absorbing and eliminating waves can mean that when the wave passes through the wave energy power generation device, the wave energy is converted into electrical energy and its own motion energy by the wave energy power generation device, thereby reducing the energy of the wave itself.

[0046] According to the combination of the above-mentioned wave energy power generation device and the wind farm, the wave energy power generation device 210 can be used to break waves, so that the wave energy reaching the wind farm is reduced. The wave absorption and wave breaking characteristics of the wave energy power generation facility are utilized to achieve field-level wave suppression of the offshore wind farm, reduce the load on the offshore wind turbine support structure, and thus achieve optimization of the engineering quantity of the offshore unit support structure, improve the economy and stability of the offshore unit support structure, reduce the influence of waves on the unit, and improve the adaptability of the unit.

[0047] In addition, by utilizing the wave-absorbing and wave-dissipating characteristics of wave energy power generation devices, it can provide convenience for construction and operation and maintenance while reducing the waves in offshore wind farms. Under conditions with larger environmental waves, construction and operation and maintenance work can still be carried out, thereby extending the construction and operation and maintenance window period (that is, the time when environmental conditions meet the technical requirements of operation and maintenance), improving construction and operation and maintenance efficiency, and further ensuring the reliability of the unit.

[0048] In an embodiment of the present disclosure, the main wave direction may be determined based on a wave direction in which wave energy is greater than other directions.

[0049] As an example, based on historical wave monitoring data, the probability of waves appearing in various directions in the area where the wind farm 100 is located can be counted, and the main wave direction can be determined based on the statistical probability.

[0050] For example, Figure 3 As shown, a hydrological survey and assessment can be carried out during the feasibility study stage of the wind farm design to obtain historical wave monitoring data for a certain period of time. Based on the wave direction distribution determined by historical observations and simulation data, the probability of waves appearing in various directions in the area centered on the wind farm 100 is counted, and a wave direction rose diagram is drawn, so as to determine the main wave direction based on the diagram. Figure 3 In the figure, the circumferential direction indicates the direction with the wind farm 100 as the center, such as north (N), northeast (NE), east (E), southeast (SE), south (S), southwest (SW), west (W), northwest (NW), etc.; the radial direction indicates the frequency of wave occurrence, and the higher the value, the greater the probability of wave occurrence, for example Figure 3 The frequency of waves between the east and southeast directions is higher, indicating that waves are more likely to appear in this direction. In addition, the height of the waves can also be indicated by color.

[0051] Here, the direction with the highest probability of wave occurrence can be taken as the main wave direction. For example, the direction with the highest probability can be found based on the wave direction rose chart.

[0052] However, it is not limited to this. In the case where there are multiple directions with similar probabilities, the direction where the average angle of the multiple directions with similar probabilities is located can also be used as the main wave direction. Here, similar probabilities can mean that the difference between the probabilities is within a preset range or the absolute value of the difference between the probabilities is less than or equal to a preset threshold. Figure 3 For example, the center line of the central angle formed by direction 1 and direction 2 can be used as the main wave direction. In this way, when the wave-facing side of the wave energy power generation device 210 is set to face the main wave direction, it may have a wave-breaking effect on waves in the direction range from direction 1 to direction 2.

[0053] As another example, the main wave direction can be determined based on the real-time monitored wave data. For example, in the actual operation of the wind farm, wave online monitoring equipment can be installed at the machine positions outside the wind farm and / or the typical machine positions in the wind farm (for example, the machine positions facing the main wave direction determined in the design stage) to monitor the actual situation of the waves, so that the wave energy can be determined based on the actual monitored wave data. The wave energy can be determined based on the wave height, for example.

[0054] It should be noted that the above two examples can be applied in combination. For example, in the design stage of the offshore power generation system, the probability of waves appearing in various directions in the area where the wind farm 100 is located can be counted based on historical wave monitoring data to determine the main wave direction. After the offshore power generation system is put into use, the main wave direction can be re-determined through the wave data actually monitored on site, so that the wave-facing side of the deployed wave energy power generation device can be adjusted to face the re-determined main wave direction to achieve better actual results. In addition, during the operation of the system, the main wave direction can also be re-determined at predetermined time intervals. When the change in the main wave direction exceeds a predetermined range, the direction of the wave energy power generation device can be adjusted to ensure that a good wave energy absorption effect is always maintained during the operation of the system.

[0055] The electricity generated by wind farms and wave power plants is transmitted to offshore substations, which step up the voltage of the received electricity and output the stepped-up electricity to the shore.

[0056] According to the offshore power generation system of the exemplary embodiment of the present disclosure, on the one hand, the coordinated use of dual energy sources can be realized through the combined application of wind farms and wave power farms to improve the utilization rate of offshore energy. On the other hand, the wave power farm can be used to eliminate waves for the wind farm to avoid the impact of wave loads on the wind turbine generator set and affect the safety of the set.

[0057] In addition, by placing the wave-facing side of the wave energy power generation device toward the main wave direction, it is possible to achieve the above-mentioned two effects while receiving as much wave energy as possible with as few wave energy power generation devices as possible, thereby saving the investment cost of the wave energy power generation device while ensuring a better wave conversion effect, and improving the economy of the entire offshore power generation system.

[0058] Furthermore, in the embodiments disclosed herein, the electricity generated by the wave energy power generation device, in addition to being connected to the grid with the offshore wind farm for power supply, can also be used as on-site energy storage power supply or for various types of electricity consumption on the farm itself (wave energy power supply as backup power for wind turbines in the event of a grid failure; charging pile for transportation ships; power supply required for wave-breaking and energy-consuming devices and construction when wind turbine cranes are installed; temporary power supply required for dynamic debugging of wind turbines, etc., power supply for wind turbine auxiliary equipment).

[0059] As an example, the wave energy power generation device can also be used for at least one of the following: as a temporary power source for the wind turbine during the commissioning process; as a backup power source for the wind turbine in the event of a failure; for charging the energy storage device of the wind turbine; as a construction power source for the wind turbine during the installation process; and for powering auxiliary equipment within the wind turbine.

[0060] Specifically, during the commissioning process of the wind turbine generator set, since the unit has not yet been connected to the grid and has not yet generated electricity, the unit itself is in a power-off state. The commissioning process may involve the commissioning of the variable pitch system and the yaw system of the unit, so it is necessary to power the unit internally. In the traditional offshore unit commissioning scheme, it can be debugged through a ship power supply, such as powering the ship's diesel generator to complete the entire commissioning process. In the case of adopting the offshore power generation system of the embodiment of the present disclosure, the wave energy power generation device can be used as a temporary power supply for the wind turbine generator set during the commissioning process to provide the electric energy required for the commissioning, thereby eliminating the power supply operation of the offshore ship, optimizing the commissioning process, and improving the convenience of commissioning.

[0061] In addition, the wave energy power generation device can be directly used for the wind turbine's own electricity consumption. For example, when a wind turbine fails, it can be used as a backup power source to power the unit to maintain normal operation of the unit or shut it down smoothly.

[0062] In addition, energy storage devices such as batteries can be set in wind turbines, and wave power generation devices can charge such energy storage devices to store electricity. Such energy storage devices can be used as charging piles for marine transportation ships or meet other temporary electricity needs.

[0063] In addition, the wave energy power generation device can also provide construction electricity during the hoisting and installation of the wind turbine to solve the problem of power shortage in offshore construction. The wave energy power generation device can also power the auxiliary equipment of the unit (such as lighting, video monitoring facilities, communication facilities, environmental control equipment, monitoring equipment, etc.).

[0064] In the embodiments of the present disclosure, by supplying the electric energy output by the wave power generation device to the wind turbine generator set, support and complementarity between different energy sources can be achieved, and reliable and stable power supply can be provided during the installation, commissioning, and operation of offshore wind turbine generator sets, thereby improving the efficiency of wave power generation, reducing the overall construction and operation and maintenance costs of offshore wind turbine generator sets, and improving the overall economic efficiency of the offshore power generation system. In addition, by combining the wave power generation device with the energy storage device, a multi-energy complementary mechanism of "offshore wind power-wave energy-energy storage" is realized, and an offshore energy island model is realized, which can be used to charge marine transportation ships or to provide power for the overall development of marine resources, which is in line with the application scenario of deep-sea development.

[0065] The following will refer to Figures 4 to 7 Several example layouts of offshore power generation systems according to exemplary embodiments of the present disclosure are described in detail.

[0066] In one example, the offshore power generation system may include a plurality of power generation subsystems 10, each of which may include a wind turbine 110 and at least one wave energy generation device 210, for example, Figure 4 As shown, the power generation subsystem 10 may include a wind turbine 110 and a wave power generation device 210; Figure 5 As shown, the power generation subsystem 10 may include a wind turbine 110 and a plurality of wave energy generation devices 210 .

[0067] Each wave energy power generation device 210 in the power generation subsystem can be arranged on the side of the corresponding wind turbine generator set 110 facing the main wave direction. In this mode, in combination with the main wave direction of the wave, the wave energy power generation device 210 can be reasonably arranged in the direction of the main wave receiving surface near the single offshore wind turbine generator set 110 by utilizing the wave absorbing and wave eliminating characteristics of the wave energy power generation device 210, so that the wave is weakened after passing through the wave energy power generation device 210, and the wave load borne by the supporting structure of the wind turbine generator set 110 is reduced.

[0068] Here, the number of wave energy power generation devices arranged near each wind turbine can be designed according to actual needs. For example, the relative positions and spacings of the wave energy power generation devices can be customized according to the performance and power generation requirements of the wave energy power generation devices, which will be described in detail in the embodiment of the layout method of the offshore power generation system below.

[0069] In this example, each wave energy generating device 210 in the power generation subsystem can be connected to a corresponding wind turbine generator set 110 to send electric energy to the corresponding wind turbine generator set 110. The wind turbine generator set 110 in the power generation subsystem can collect the electric energy received from the corresponding wave energy generating device 210 and the electric energy generated by itself, and send the collected electric energy to the offshore booster station 300 ( Figure 4 and Figure 5 not shown).

[0070] As an example, each wave energy power generation device 210 can be connected to a corresponding unit through a cable such as a submarine cable to achieve grid connection through the unit. For example, the wave energy power generation device 210 can transmit electric energy to the transformer and ring main unit on the unit side to merge with the electric energy generated by the unit itself, so that it can be transmitted to the offshore booster station together.

[0071] In this example, the wave energy power plant and the wind power plant can be mixed and arranged, and the wave energy power generation device can be arranged near the wind turbine generator set, so as to facilitate the collection of the electric energy of the wave energy power generation device and the electric energy of the wind turbine generator set, and facilitate the transmission of the electric energy of the wave energy power generation device. There is no need to set up power transmission and grid-connected facilities separately for the wave energy power generation device, which can reduce the construction workload and investment cost of the wave energy power plant.

[0072] Furthermore, in this example, the wave energy power generation device can use the supporting structure of the corresponding wind turbine as a fixed mooring point, thereby achieving offshore fixation of the wave energy power generation device without the need to separately provide a fixed structure for the wave energy power generation device.

[0073] In another example, the wave energy farm may be arranged on the side of the wind farm facing the main wave direction.

[0074] For example, Figure 6 and Figure 7 As shown, the wave energy farm 200 can be arranged as a whole on the side of the wind farm 100 facing the main wave direction to form a breakwater composed of wave energy power generation devices 210, so as to achieve field-level wave breaking effect on the entire wind farm. In this example, the wave energy power generation device can be fixed by an independent mooring device.

[0075] In addition, in this example, the wave energy generation device can be equipped with an independent transformer and ring main unit to directly transmit electricity to the offshore booster station without the need to collect the wave energy generated through the wind farm.

[0076] In this example, by setting up the wave energy power plant as a whole on the side of the wind farm facing the main wave direction, a field-level breakwater can be formed, and the layout of each wave energy power generation device is more concentrated, so that it is possible to concentrate on dealing with waves from the main wave direction, which is beneficial to the situation where the wave range is wider. For example, as mentioned above, when the main wave direction is determined based on multiple directions with equivalent probabilities, the wave coverage range may be larger, thereby requiring the wave energy power plant to have a larger coverage range and the wave energy power generation devices to have a more concentrated density. Therefore, an arrangement as in this example may be beneficial.

[0077] Here, it should be noted that although Figure 6 and Figure 7 It is shown that the wave energy power generation devices are arranged in two rows, but the number of rows and columns is not limited thereto and can be designed according to actual needs.

[0078] In addition, according to an embodiment of the present disclosure, the projection length of the wind farm in the direction perpendicular to the main wave direction may be less than or equal to the projection length of the wave energy farm in the direction perpendicular to the main wave direction. For example, the projection range of the wind farm in the direction perpendicular to the main wave direction may be within the projection range of the wave energy farm in the direction perpendicular to the main wave direction.

[0079] For example, Figure 4 As shown, the projected length of the wind farm can be equal to the projected length of the wave power farm; Figures 5 to 7 As shown, the projected length of the wind farm can be smaller than the projected length of the wave power farm ( Figure 7 not marked in the figure).

[0080] Through such a design, the wind farm can be placed on the rear side of the wave energy power plant in the main wave direction, so that the waves propagating to the wind farm along the main wave direction have all passed through the wave energy power generation device, thereby achieving a better wave breaking effect and further improving the stability and safety of the wind farm.

[0081] However, it should be noted that the relationship between the projection length and projection range of the wind farm and the wave power farm is not limited to this. The wind farm can also be larger than the projection length of the wave power farm or outside the projection range of the wave power farm. In this case, it can also play the role of wave energy utilization and wave absorption.

[0082] The offshore power generation system according to the embodiments of the present disclosure aims to solve the problem that existing wave energy power generation devices cannot be developed in a field-level array manner. Combining the experience of field-level development of offshore wind turbines, a model of integrated development of wave energy and offshore wind power is proposed. With offshore wind farms as the carrier, the problem of high cost and inability to realize display and mass production of traditional wave energy power generation models is solved. The technical characteristics of the two types of equipment can be utilized to form complementary advantages of the two energy sources.

[0083] Specifically, according to the offshore power generation system of the embodiment of the present disclosure, by reasonably arranging offshore wind turbines and wave power generation devices, and utilizing the wave absorption and wave elimination characteristics of wave power generation devices, field-level wave suppression is achieved, thereby further reducing the wave load on the offshore wind turbine support structure, thereby optimizing the engineering volume of the offshore wind power support structure. As for the wave power generation device, it can share power transmission and grid-connected facilities with the offshore wind turbines, and can also share the offshore wind power support structure, thereby optimizing and reducing its unit power generation cost. In addition, the offshore power generation system can also achieve energy complementarity between offshore wind power generation and wave power generation, improve the energy utilization rate per unit sea area, and help save sea area.

[0084] According to a second aspect of the present disclosure, a layout method of an offshore power generation system is provided. The layout method can be performed by an electronic device with a computing and analysis function, the electronic device can be a terminal device or a server, wherein the terminal device can be a tablet computer, a laptop computer, a digital assistant, etc.; the server can be an independent server, a server cluster, a cloud computing platform, or a virtualization center.

[0085] In an example application scenario, an electronic device that executes the layout method of an offshore power generation system according to an embodiment of the present disclosure can obtain wave environment data of the area where the wind farm is located, wind farm layout data of the wind farm, and device performance of the wave energy power generation device to be arranged, for example, obtaining the above data from a database, a real-time monitoring device, etc.

[0086] The electronic device can determine the arrangement parameters of the wave energy power plant based on wave environment data, wind farm arrangement data and device performance, and can determine the wave transmittance of the wave energy power plant based on the arrangement parameters, so as to determine the wave parameters of the wave reaching the wind farm after passing through the wave energy power plant based on the wave field model corresponding to the wave environment data, the wave transmittance and the positional relationship between the wave energy power plant and the wind farm.

[0087] The electronic device can also adjust the arrangement parameters and / or positional relationships based on the wave parameters until the wave parameters meet the wave design requirements of the wind farm, and determine the arrangement parameters and positional relationships corresponding to the wave parameters meeting the wave design requirements as the layout of the offshore power generation system.

[0088] In the above scenario, the layout design of the offshore power generation system can be realized. By considering the wave environment data of the wind farm, the wind farm arrangement data and the device performance of a single wave power generation device, the wave power farm can be reasonably arranged so that the wave power farm and the wind farm can cooperate with each other. On the one hand, the wave power farm can absorb and eliminate waves to reduce the impact of wave energy on the load impact of the wind farm. On the other hand, dual-energy power generation can be realized to improve the overall utilization rate of marine energy.

[0089] The following will refer to Figures 8 to 14 A layout method of an offshore power generation system according to an exemplary embodiment of the present disclosure is described in detail.

[0090] like Figure 8 As shown, the layout method of the offshore power generation system may include the following steps:

[0091] In step S810, wave environment data of the area where the wind farm is located, wind farm arrangement data of the wind farm, and device performance of the wave energy power generation device to be arranged may be obtained.

[0092] In this step, the wave environment data of the area where the wind farm is located may be, for example, but not limited to, the wave environment data obtained based on historical wave environment data statistics, or may also be the wave environment data collected for a predetermined historical time period. As an example, the wave environment data may include the main wave direction described above, which can help guide the design of the layout direction of the wave energy power generation device. For offshore projects in different regions, the wave environment data may be different. For example, at a location with a southerly latitude, the wave height is higher and the wave period is longer, while at a location with a northerly latitude, the wave height is lower and the wave period is shorter.

[0093] The wind farm arrangement data may be data obtained according to the design requirements of the wind farm, for example, it may be actual arrangement data of an existing offshore wind farm, or it may be design arrangement data of an offshore wind farm to be built.

[0094] The device performance of a wave power generation device may refer to the device performance of a single wave power generation device. Here, one or more wave power generation devices may be used. That is to say, in an offshore power generation system, each wave power generation device may have the same device performance or different device performance. The differences in the device performance of wave power generation devices are mainly reflected in their own wave absorption efficiency, wave energy utilization, power generation efficiency, wave range that the device itself can cover, etc.

[0095] In step S820, the arrangement parameters of the wave energy farm may be determined based on the wave environment data, the wind farm arrangement data, and the wave absorption performance.

[0096] As an example, the arrangement parameters of the wave energy farm suitable for the current wave environment data, wind farm arrangement data and device performance can be evaluated according to the empirical method. However, it is not limited to this, and can also be implemented according to other methods, for example, the machine learning model can be trained by an unsupervised method based on historical design data, so that the current wave environment data, wind farm arrangement data and device performance can be input into the trained machine learning model, and the initial wave energy farm arrangement parameters can be output through the machine learning model.

[0097] Here, the arrangement parameters may include, for example, but are not limited to, at least one of the following items: the spacing between wave energy power generation devices; the number of rows of wave energy power generation devices; the number of columns of wave energy power generation devices; the coverage of wave energy power generation devices; the arrangement direction of wave energy power generation devices; and the number of wave energy power generation devices. However, the arrangement parameters are not limited thereto, and other arrangement parameters may also be used according to actual design requirements.

[0098] The arrangement parameters determined in this step may be initially estimated, and adjustments may be made in subsequent steps based on the initial arrangement parameters.

[0099] In step S830, the wave transmittance of the wave energy farm may be determined based on the arrangement parameters.

[0100] In this step, the layout of the wave energy farm can be determined based on the initial arrangement parameters, so that the overall wave transmittance of the wave energy farm can be calculated based on the layout and the device performance of each wave energy power generation device.

[0101] For example, as shown in Table 1 below, the wave breaking effect of each wave energy power generation device can be determined based on the wave height Hs of the original wave (e.g., the mean wave height, the maximum wave height) and the wave height Hs after the wave breaking by the wave energy power generation device (e.g., the mean wave height, the maximum wave height), and then the overall transmittance of the wave energy power generation field can be determined based on the wave breaking effect of each wave energy power generation device. Here, the wave breaking effect can be represented by a wave transmission coefficient, which can refer to the ratio (e.g., percentage) of the wave height after the wave passes through a single wave energy device to the wave height before passing through the wave energy device.

[0102] Table 1

[0103]

[0104] In step S840, wave parameters of waves reaching the wind farm after passing through the wave power farm may be determined based on the wave field model corresponding to the wave environment data, the wave transmittance, and the positional relationship between the wave power farm and the wind farm.

[0105] In this step, a corresponding wave field model can be established based on the wave environment data, for example Fig. 9 As shown, an environmental simulation model can be established, and the layout simulation of the offshore power generation system can be performed in the model.

[0106] As an example, the wave parameters of the wind farm may be parameters used to characterize the wave energy of the waves reaching the wind farm, and may include but are not limited to the wave height, wave moving speed, and their statistical values.

[0107] For example, a wave design threshold can be given in advance according to the design requirements of the wind farm. Specifically, during the design stage of the wind farm, the wave design safety boundary under different combinations of wave environmental conditions can be given based on factors such as the safety and economy of the design of the offshore wind turbine generator set and its supporting structure. The boundary value can be the wave design threshold. When the wave parameter is greater than the threshold, it can be considered that the waves reaching the wind farm exceed the design safety boundary and may affect the safety of the unit and its supporting structure. However, the examples of wave parameters are not limited to this, and can also be designed according to the needs of the actual design stage.

[0108] The positional relationship between the wave energy farm and the wind farm may be predetermined, for example, Figure 4 and Figure 5 The layout relationship of the multiple power generation subsystems shown can also be Figure 6 and Figure 7 The overall relationship shown. Accordingly, the positional relationship between the wave energy farm and the wind farm may include, for example, but is not limited to, at least one of the following items: a field-level positional relationship between the wave energy farm and the wind farm; a spacing between the wave energy power generation device in the wave energy farm and the wind turbine generator set in the wind farm. Here, the field-level positional relationship may refer to the positional relationship between the projection ranges of the two in a direction perpendicular to the main wave direction, and the spacing between the wave energy power generation device and the wind turbine generator set may refer to the spacing in the main wave direction.

[0109] Specifically, Figure 4 and Figure 5 For example, we can focus on the distance between the wave energy power generation device and the wind turbine generator set in each power generation subsystem. When the power generation subsystem includes multiple wave energy power generation devices, we can consider the distance between each wave energy power generation device and the wind turbine generator set. Figure 6 and Figure 7 For example, we can focus on the positional relationship between the overall wave energy farm and the overall wind farm.

[0110] In step S840, when the wave field model, wave transmittance, and the positional relationship between the wave energy farm and the wind farm are known, the current wave conditions, the layout of the offshore power generation system, and the wave absorption capacity of the wave energy farm can be determined, so that the wave parameters of the wave reaching the wind farm after passing through the wave energy farm can be determined through simulation.

[0111] In step S850, the arrangement parameters and / or position relationship may be adjusted based on the wave parameters until the wave parameters meet the wave design requirements of the wind farm.

[0112] As mentioned above, the wave parameters of the wind farm can be parameters used to characterize the wave energy of the waves reaching the wind farm. Given a wave design threshold, the wave parameters obtained under the current layout can be compared with the wave design threshold to determine whether they meet the wave design requirements of the wind farm. Here, in the design stage of an offshore wind turbine, restrictions (such as wave design thresholds) can be put forward in reverse based on requirements such as design economy and structural safety. Wave design requirements (also referred to as wave dissipation performance requirements) can refer to requirements for the wave dissipation capacity of waves in a wave energy power plant. The wave dissipation capacity must ensure that the waves passing through the wave energy power plant meet the design requirements of the wind farm.

[0113] In the case that the wave parameters do not meet the wave absorption performance requirements of the wind farm, it can be considered that the arrangement parameters of the wave energy power plant and / or the positional relationship between the wave energy power plant and the wind farm are adjusted and optimized to obtain new wave parameters, which are then compared with the wave design threshold until the wave parameters meet the wave design requirements of the wind farm.

[0114] In step S850, an adjustment step may be set in advance for each arrangement parameter and position relationship parameter. In each adjustment, the adjustment may be performed according to the predetermined adjustment step. The adjustment order of the parameters may be arbitrary, and the adjustment order may also be set according to the operating purpose of the wave energy farm.

[0115] As an example, the arrangement parameters and / or positional relationships may be adjusted in the following ways:

[0116] In response to the wave energy farm being used for wave breaking purposes, the arrangement parameters and / or positional relationships may be adjusted by first adjusting the first parameter and then adjusting the second parameter. Here, the first parameter may include the spacing and / or coverage between the wave energy power generation devices, and the second parameter may include at least one of the number of rows of the wave energy power generation devices, the number of columns of the wave energy power generation devices, the arrangement direction of the wave energy power generation devices, the number of wave energy power generation devices, and the positional relationship.

[0117] Specifically, when the main goal of a wave energy farm is to break waves, priority should be given to adjusting the spacing between wave energy power generation devices and the area of ​​sea covered, so that as many wave energy power generation devices as possible can play a role in blocking waves, thereby ensuring the safety of the wind farm.

[0118] In response to the wave energy farm being used for power generation purposes, the arrangement parameters and / or positional relationships may be adjusted by first adjusting the third parameter and then adjusting the fourth parameter. Here, the third parameter may include the number of rows, columns and / or quantity of wave energy power generation devices, and the fourth parameter may include at least one of the spacing between wave energy power generation devices, the coverage of the wave energy power generation devices, the arrangement direction of the wave energy power generation devices, and the positional relationship.

[0119] Specifically, when the wave energy farm takes power generation as the main goal, priority is given to adjusting the number of rows, columns and quantities of wave energy power generation devices, so that the energy of waves within the wave energy power farm can be utilized and converted as much as possible, thereby making full use of wave energy for power generation.

[0120] According to the above example, by adjusting the arrangement parameters and positional relationships in consideration of the operating purpose of the wave energy farm, the optimization purpose can be achieved quickly, and a layout that meets the wave design requirements of the wind farm can be obtained with as few adjustments as possible.

[0121] In step S860, the arrangement parameters and positional relationships corresponding to the wave parameters satisfying the wave design requirements may be determined as the layout of the offshore power generation system.

[0122] According to the above layout method, the arrangement parameters of the wave energy power plant and the positional relationship between the wave energy power plant and the wind farm can be customized according to different wave conditions, performance differences of different wave energy power generation devices, and wave dissipation performance requirements of the wave energy power generation device array. In this way, the transmission coefficient (or wave dissipation efficiency) of a single wave energy power generation device can be combined, and wave simulation can be performed according to different arrangements to determine the optimal layout of the offshore power generation system.

[0123] Fig.10 is a schematic diagram showing an example simulation flow of a layout method of an offshore power generation system according to an exemplary embodiment of the present disclosure.

[0124] like Fig.10 As shown, in step S1001, wave environment parameters, wind farm arrangement data, and device performance of the wave energy power generation device may be input.

[0125] In step S1002, the arrangement parameters of the wave energy farm may be determined through empirical evaluation based on wave environment parameters, wind farm arrangement data, and device performance of the wave energy power generation device.

[0126] In step S1003, a corresponding wave field model may be obtained based on the wave environment parameters.

[0127] In step S1004, the comprehensive wave transmittance of the wave energy farm may be determined based on the determined arrangement parameters of the wave energy farm.

[0128] In step S1005, the position relationship between the wave power plant and the wind farm may be input.

[0129] In step S1006, wave parameters can be obtained through wave simulation based on the wave field model, the comprehensive wave transmittance of the wave energy farm, and the positional relationship between the wave energy farm and the wind farm, and it can be determined whether the wave parameters meet the wave design requirements.

[0130] If the wave design requirements are not met, the process may return to step S1002 and / or step S1005 to adjust the arrangement parameters and / or position relationship until the wave design requirements are met. If the wave design requirements are met, the layout of the offshore power generation system may be determined in step S1007.

[0131] Through the above layout method, the layout of the offshore power generation system that can meet the wave absorption requirements of the wind farm can be reasonably designed by taking into account the wave data, the arrangement of the wind farm and the performance of the wave energy power generation device. This can not only realize the combination of the wind farm and the wave energy power farm, but also optimize the combination of the two to achieve a better wave absorption effect.

[0132] The above describes a layout method for an offshore power generation system in the design stage. According to an embodiment of the present disclosure, after the offshore power generation system is put into use, the system can be rearranged based on wave data monitored on-site and / or system requirements for the offshore power generation system to meet actual needs.

[0133] In one example, if Fig.11 As shown, the layout method may further include the following steps:

[0134] In step S1110, wave monitoring data monitored on site may be acquired.

[0135] Here, the wave monitoring data can be obtained by real-time monitoring of wave monitoring devices installed at typical machine positions outside the wind farm and / or inside the wind farm.

[0136] In step S1120, the wave field model may be updated based on the wave monitoring data to obtain a revised wave field model.

[0137] In this step, the wave field model can be updated. Specifically, Figure 8In the described process, the wave field model is constructed based on the wave data in the design phase, which may differ from the actual wave conditions. Here, the difference can be corrected based on the wave monitoring data to obtain a corrected wave field model.

[0138] In step S1130, current wave parameters may be determined based on the modified wave field model and the current layout of the offshore power generation system.

[0139] In this step, based on the current layout of the offshore power generation system, the arrangement parameters of the wave energy farm, the wave transmittance of the wave energy farm, and the positional relationship between the wave energy farm and the wind farm can be determined. In this way, the current wave parameters can be determined based on the corrected wave field model and the current layout of the offshore power generation system.

[0140] In step S1140, in response to the current wave parameters not meeting the wave design requirements, the layout of the offshore power generation system may be adjusted by adjusting the arrangement parameters and / or positional relationships until the wave parameters meet the wave design requirements.

[0141] In this step, the layout of the offshore power generation system can be updated so that it meets the wave design requirements of the wind farm under the current waves. For example, the position of the wave energy power generation device can be adjusted according to the updated layout.

[0142] In addition, if the current wave parameters meet the wave design requirements, the layout of the offshore power generation system can remain unchanged.

[0143] According to the layout method of the exemplary embodiment of the present disclosure, it is possible to timely adjust the wave environmental conditions in the simulation process based on the deviation between the actual waves on site and the designed waves (such as changes in wave height, wave direction, and wave period) monitored by the wave online monitoring equipment, re-conduct the layout analysis of the wave energy power generation device, and adjust the layout of the offshore power generation system to meet the actual use requirements of the project.

[0144] Fig.12 is a schematic diagram showing an example simulation process of adjusting the system layout in the layout method of the offshore power generation system according to an exemplary embodiment of the present disclosure.

[0145] like Fig.12 As shown, in step S1201, wave monitoring parameters and the layout of the current offshore power generation system may be input.

[0146] In step S1202, the original wave field model in the design phase may be modified based on the wave monitoring parameters to obtain a modified wave field model.

[0147] In step S1203 and step S1204, the arrangement parameters of the current wave energy power plant and the positional relationship between the current wave energy power plant and the wind farm may be determined based on the layout of the current offshore power generation system.

[0148] In step S1205, the comprehensive wave transmittance of the current wave energy farm may be determined based on the arrangement parameters of the current wave energy farm.

[0149] In step S1206, new wave parameters can be obtained through wave simulation based on the modified wave field model, the comprehensive wave transmittance of the current wave energy farm, and the positional relationship between the current wave energy farm and the wind farm, and it can be determined whether the wave parameters meet the wave design requirements.

[0150] If the wave design requirements are not met, the process may return to step S1203 and / or step S1204 to adjust the arrangement parameters and / or position relationship until the wave design requirements are met. If the wave design requirements are met, the layout of the offshore power generation system may be determined in step S1207.

[0151] In another example, if Fig.13 As shown, the layout method may further include the following steps:

[0152] In step S1310, system requirements of the offshore power generation system may be obtained, where the system requirements may include operation and maintenance requirements and / or power generation requirements.

[0153] For example, according to the project operation and maintenance requirements, it is necessary to enhance the wave-absorbing effect on a specific machine position, and / or, according to the power generation requirements of the power plant, it is necessary to increase the power generation performance and reduce the wave-absorbing effect.

[0154] In step S1320, current wave parameters may be determined based on wave environment data, system requirements, and the current layout of the offshore power generation system.

[0155] In this step, the wave environment data can be as follows Figure 8 The historical wave environment data can also be as follows Fig.11 The wave monitoring data monitored on site can be used to determine the wave field model based on the wave environment data.

[0156] Here, the current layout of the offshore power generation system can be adjusted according to the system requirements to determine the arrangement parameters of the wave energy power plant. For example, the number of rows, columns, or spacing and arrangement direction of the wave energy power generation devices can be increased or decreased, so that the wave transmittance can be determined based on the arrangement parameters of the wave energy power plant.

[0157] In addition, the positional relationship between the wave energy farm and the wind farm can be determined based on the current layout of the offshore power generation system, so that the current wave parameters can be determined based on the wave field model, wave transmittance and positional relationship.

[0158] In step S1330, in response to the current wave parameters not meeting the wave design requirements, the layout of the offshore power generation system may be adjusted by adjusting the arrangement parameters and / or positional relationships until the wave parameters meet the wave design requirements.

[0159] In this step, the layout of the offshore power generation system can be updated so that it meets the wave design requirements of the wind farm under the current system requirements. For example, the position of the wave energy power generation device can be adjusted and / or the wave energy power generation device can be increased or decreased according to the updated layout.

[0160] In addition, if the current wave parameters meet the wave design requirements under the current system requirements, the layout of the offshore power generation system can be kept unchanged.

[0161] According to the above process, during the operation of the offshore power generation system, the layout of the offshore power generation system can be flexibly adjusted according to system requirements to meet the actual use needs of the project.

[0162] Fig.14 is a schematic diagram showing another example simulation flow of adjusting the system layout in the layout method of the offshore power generation system according to an exemplary embodiment of the present disclosure.

[0163] like Fig.14 As shown, in step S1401, wave environment parameters, the layout of the current offshore power generation system and system requirements (such as operation and maintenance requirements and / or power generation performance requirements) may be input.

[0164] In step S1402, the arrangement parameters of the wave energy power plant may be determined based on the layout and system requirements of the current offshore power generation system.

[0165] In step S1403, the positional relationship between the wave power plant and the wind farm may be determined based on the layout of the current offshore power generation system.

[0166] In step S1404, a wave field model may be determined based on the wave environment parameters.

[0167] In step S1405, the comprehensive wave transmittance of the current wave energy farm may be determined based on the arrangement parameters of the current wave energy farm.

[0168] In step S1406, new wave parameters can be obtained through wave simulation based on the wave field model, the comprehensive wave transmittance of the wave energy farm, and the positional relationship between the wave energy farm and the wind farm, and it can be determined whether the wave parameters meet the wave design requirements.

[0169] If the wave design requirements are not met, the process may return to step S1402 and / or step S1403 to adjust the arrangement parameters and / or position relationship until the wave design requirements are met. If the wave design requirements are met, the layout of the offshore power generation system may be determined in step S1407.

[0170] The offshore power generation system and the layout method of the offshore power generation system according to the embodiments of the present disclosure can be applicable to various types of offshore wind farms, including but not limited to offshore wind turbine parameters such as various numbers of units, unit arrangements, unit capacities, unit impeller diameters, and unit technical routes, and can be applicable to various types of wave energy power generation devices, including but not limited to wave energy power generation device parameters such as sizes, capacities, technical performances, and technical routes of different wave energy power generation devices.

[0171] The layout method of the offshore power generation system according to an embodiment of the present disclosure can be executed by an electronic device, which may include: a processor; a memory, the memory storing computer executable instructions, wherein the computer executable instructions, when executed by the processor, prompt the processor to execute the layout method of the offshore power generation system according to the exemplary embodiment of the present disclosure.

[0172] As an example, the electronic device can be a PC computer, a tablet device, a personal digital assistant, a smart phone or other devices capable of executing the above-mentioned instruction set. Here, the electronic device is not necessarily a single electronic device, but can also be any device or circuit that can execute the above-mentioned instruction (or instruction set) individually or jointly. The electronic device can also be a part of an integrated control system or a system manager, or can be configured to be a portable electronic device interconnected with an interface locally or remotely (for example, via wireless transmission). In addition, the electronic device can also include a video display (such as, a liquid crystal display) and a user interaction interface (such as, a keyboard, a mouse, a touch input device, etc.). All components of the electronic device can be connected to each other via a bus and / or a network.

[0173] The processor may include a central processing unit (CPU), a graphics processing unit (GPU), a programmable logic device, a dedicated processor system, a microcontroller or a microprocessor. As an example and not limitation, the processor may also include an analog processor, a digital processor, a microprocessor, a multi-core processor, a processor array, a network processor, etc.

[0174] The processor can execute instructions or codes stored in the memory, wherein the memory can also store data. Instructions and data can also be sent and received through the network via the network interface device, wherein the network interface device can adopt any known transmission protocol.

[0175] The memory may be integrated with the processor, for example, RAM or flash memory is arranged within an integrated circuit microprocessor or the like. In addition, the memory may include a separate device, such as an external disk drive, a storage array, or any other storage device that can be used by a database system. The memory and the processor may be operatively coupled, or may communicate with each other, such as through an I / O port, a network connection, etc., so that the processor can read files stored in the memory.

[0176] In addition, some operations in the layout method of the offshore power generation system according to the embodiment of the present disclosure can be written as a computer program and stored on a computer-readable storage medium. Examples of computer-readable storage media include: read-only memory (ROM), random access programmable read-only memory (PROM), electrically erasable programmable read-only memory (EEPROM), random access memory (RAM), dynamic random access memory (DRAM), static random access memory (SRAM), flash memory, non-volatile memory, CD-ROM, CD-R, CD+R, CD-RW, CD+RW, DVD-ROM, DVD-R, DVD+R, DVD-RW, DVD+RW, DVD-RAM, BD-ROM, BD-R, BD-R LTH, BD-RE, Blu-ray or optical disk storage, hard disk drive (HDD), solid state drive (SSD), card storage (such as, multimedia card, secure digital (SD) card or extreme digital (XD) card), magnetic tape, floppy disk, magneto-optical data storage device, optical data storage device, hard disk, solid state disk and any other device, any other device is configured to store computer program and any associated data, data files and data structures in a non-transitory manner and provide the computer program and any associated data, data files and data structures to a processor or computer so that the processor or computer can execute the computer program. In one example, the computer program and any associated data, data files and data structures are distributed on a networked computer system so that the computer program and any associated data, data files and data structures are stored, accessed and executed in a distributed manner by one or more processors or computers.

[0177] The specific implementation methods of the present disclosure have been described in detail above. Although some embodiments have been shown and described, those skilled in the art should understand that these embodiments may be modified and varied without departing from the principles and spirit of the present disclosure, the scope of which is defined by the claims and their equivalents. These modifications and variations should also be within the scope of protection of the claims of the present disclosure.

Claims

1. An offshore power generation system, characterized in that: The offshore power generation system comprises a wind farm, a wave power farm and an offshore booster station. The wind farm comprises a plurality of wind turbines, and the wave power farm comprises a plurality of wave power generation devices. The wave-facing sides of the plurality of wave energy power generation devices face the main wave direction in the area where the wind farm is located, so as to convert the wave energy of the waves into electrical energy, wherein the main wave direction is determined based on the wave direction in which the wave energy is greater than that in other directions, The electric energy generated by the wind farm and the electric energy generated by the wave power farm are both transmitted to the offshore booster station, which boosts the received electric energy and outputs the boosted electric energy to the shore.

2. The offshore power generation system according to claim 1, characterized in that: The offshore power generation system comprises a plurality of power generation subsystems, each of which comprises one wind turbine generator set and at least one wave energy power generation device. Each wave energy generating device in the power generating subsystem is arranged on a side of the corresponding wind turbine generator set facing the main wave direction. Each wave energy generating device in the power generating subsystem is connected to a corresponding wind turbine generator set to send electrical energy to the corresponding wind turbine generator set, The wind turbine generator set in the power generation subsystem collects the electric energy received from the corresponding wave energy generation device and the electric energy generated by itself, and sends the collected electric energy to the offshore booster station.

3. The offshore power generation system according to claim 1, characterized in that: The wave energy power plant is arranged on a side of the wind farm facing the main wave direction.

4. The offshore power generation system according to claim 1, characterized in that: The projected length of the wind farm in the direction perpendicular to the main wave direction is less than or equal to the projected length of the wave energy power plant in the direction perpendicular to the main wave direction.

5. The offshore power generation system according to any one of claims 1 to 4, characterized in that: The wave energy power generation device is used for at least one of the following: as a temporary power source for the wind turbine generator set during commissioning; as a backup power source for the wind turbine generator set in the event of a failure; for charging the energy storage device of the wind turbine generator set; Serves as the construction power source during the installation of the wind turbine generator set; and provides power for auxiliary equipment in the wind turbine generator set.

6. A layout method for an offshore power generation system according to any one of claims 1 to 5, characterized in that: The layout method comprises: Acquiring wave environment data of the area where the wind farm is located, wind farm arrangement data of the wind farm, and device performance of the wave energy power generation device to be arranged; Determining arrangement parameters of a wave energy power plant based on the wave environment data, the wind farm arrangement data and the device performance; Based on the arrangement parameters, determining the wave transmittance of the wave energy farm; Determining wave parameters of a wave reaching the wind farm after passing through the wave energy farm based on a wave field model corresponding to the wave environment data, the wave transmittance, and a positional relationship between the wave energy farm and the wind farm; Based on the wave parameters, adjusting the arrangement parameters and / or the positional relationship until the wave parameters meet the wave design requirements of the wind farm; The arrangement parameters and positional relationships corresponding to the wave parameters satisfying the wave design requirements are determined as the layout of the offshore power generation system.

7. The layout method according to claim 6, characterized in that: The layout method further includes: Obtain wave monitoring data from on-site monitoring; Based on the wave monitoring data, the wave field model is updated to obtain a revised wave field model; determining current wave parameters based on the modified wave field model and the current layout of the offshore power generation system; In response to the current wave parameters not satisfying the wave design requirements, the layout of the offshore power generation system is adjusted by adjusting the arrangement parameters and / or the positional relationship until the wave parameters satisfy the wave design requirements.

8. The layout method according to claim 6, characterized in that: The layout method further includes: Acquiring system requirements of the offshore power generation system, wherein the system requirements include operation and maintenance requirements and / or power generation requirements; determining current wave parameters based on the wave environment data, the system requirements and the current layout of the offshore power generation system; In response to the current wave parameters not satisfying the wave design requirements, the layout of the offshore power generation system is adjusted by adjusting the arrangement parameters and / or the positional relationship until the wave parameters satisfy the wave design requirements.

9. The layout method according to any one of claims 6 to 8, characterized in that: The arrangement parameters include at least one of the following items: the spacing between the wave energy power generation devices; the number of rows of the wave energy power generation devices; the number of columns of the wave energy power generation devices; the coverage of the wave energy power generation devices; the arrangement direction of the wave energy power generation devices; the number of the wave energy power generation devices, The positional relationship includes at least one of the following items: a field-level positional relationship between the wave energy power plant and the wind farm; and a distance between a wave energy power generation device in the wave energy power plant and a wind turbine generator set in the wind farm.

10. The layout method according to claim 9, characterized in that: The arrangement parameters and / or the positional relationship are adjusted by: In response to the wave energy farm being used for wave breaking purposes, the arrangement parameters and / or the positional relationship are adjusted by first adjusting a first parameter and then adjusting a second parameter, wherein the first parameter includes the spacing between the wave energy power generation devices and / or the coverage range, and the second parameter includes at least one of the number of rows of the wave energy power generation devices, the number of columns of the wave energy power generation devices, the arrangement direction of the wave energy power generation devices, the number of the wave energy power generation devices, and the positional relationship; In response to the wave energy farm being used for the purpose of power generation, the arrangement parameters and / or the positional relationship are adjusted by first adjusting the third parameter and then adjusting the fourth parameter, wherein the third parameter includes the number of rows, columns and / or quantity of the wave energy power generation devices, and the fourth parameter includes at least one of the spacing between the wave energy power generation devices, the coverage range of the wave energy power generation devices, the arrangement direction of the wave energy power generation devices, and the positional relationship.

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