Wind wave power generation device, positioning method and positioning module for cold sea areas

Abstract

The present invention relates to a wind and wave power generation device, a positioning method and a positioning module for cold sea areas, belonging to the field of power generation technology in cold sea areas. The wave power generation device is combined with a slope-type breakwater; it is characterized in that the wind and wave power generation device for cold sea areas at least includes: a plurality of positioning grooves laid on the slope surface, the plurality of positioning grooves are sequentially spliced ​​into a honeycomb structure; a swing power generation device installed in each positioning groove; each swing power generation device is connected to a battery through a voltage-stabilizing rectifier. By adopting the above technical solution, the present invention can effectively predict the wave height in the water area, and fix the chloroprene rubber swing part in the honeycomb structure within the wave height range, which can effectively prevent ice loads from damaging the energy conversion device, and is particularly suitable for sea areas susceptible to ice disasters in winter.

Description

Technical Field

[0001] The present invention belongs to the technical field of power generation in cold seas, and in particular provides a wind and wave power generation device, a positioning method and a positioning module for cold seas. Background Art

[0002] With global warming and the reduction of Arctic glaciers year by year, the coexistence of floating ice and waves has become normalized. The ice conditions in the Arctic in summer and in the Bohai Sea in winter in my country have been relatively light in recent years. According to statistics, the wind and waves in the Arctic in summer and in the Bohai Sea in winter are relatively strong, and both are the periods with the highest average wave energy flow density. However, the existing wave energy estimation methods ignore the impact of sea ice, which will lead to an overestimation of the wave energy in the Bohai Sea, and this overestimation will seriously mislead the site selection of wave energy power plants.

[0003] In addition, the presence of sea ice often causes damage to wave energy conversion devices. The main wave energy power generation technologies in my country are oscillating water column type, oscillating float type and overtopping type. The oscillating water column type can be divided into offshore type, shore-based pneumatic type, etc. The oscillating float type can be divided into submerged floating type, overrunning clutch type, pendulum type, vertical swing float type, and deep-sea floating type. The overtopping type can be divided into layered overtopping type and double contraction wave channel type. In the existing research on wave energy collection and utilization, the impact of sea ice on wave energy conversion devices is often ignored, and the existing wave energy collection and power generation measures are not suitable for sea areas with ice in cold regions.

[0004] At present, the research on anti-icing and wind-wave complementary energy conversion devices is relatively lagging behind. This is mainly manifested in the lack of research on the formation and distribution of sea ice, the basic physical characteristics of sea ice, and the methods of preventing and controlling sea ice loads, which has also greatly affected the further development of wave energy collection and utilization in cold regions. Therefore, the present invention proposes a wave energy estimation method suitable for iced sea areas in cold regions and a wind-wave complementary wave energy conversion device that can effectively collect wave energy and wind energy when floating ice and waves coexist, and use a heating rod to heat the wave energy conversion device to prevent freezing. In addition, the wave energy conversion device can be directly installed on an existing slope breakwater, which can not only effectively prevent the damage of ice loads to the wave energy conversion device, but also realize the effective utilization of clean energy, which is particularly suitable for the general background that new reclamation projects are not allowed in the Bohai Rim. Summary of the invention

[0005] The present invention solves the technical problems existing in the known technology and provides a wind wave power generation device, positioning method and positioning module for cold sea areas. The influence of waves and ice on wave energy is comprehensively considered to achieve accurate site selection of the power generation device and structural improvement of the power generation device.

[0006] The first object of the present invention is to provide a wind wave power generation device for cold sea areas; comprising:

[0007] A plurality of positioning grooves are laid on the slope surface, and the plurality of positioning grooves are sequentially spliced ​​into a honeycomb structure (2);

[0008] A swing power generation device (4) installed in each positioning slot;

[0009] Each swing power generation device (4) is connected to a storage battery via a voltage stabilizing rectifier (5).

[0010] Furthermore, the swing power generation device (4) includes a swing member (3), and the swing member (3) is installed in a positioning groove through a universal head. Multiple groups of swing power generation devices are connected in parallel to effectively improve the power generation efficiency; a carbon fiber rope is embedded in the swing member (3); one end of the carbon fiber rope is fixedly connected to the left side of the pump (6) piston, and the left chamber of the pump (6) is connected to the motor (7) through a pipeline. The side wall of the pump is equipped with a reset spring (8) to assist the push plate to reset; the motor (7) is connected to the generator (9) through a power shaft, and the output terminal of the generator (9) is connected to the battery through a voltage-stabilizing rectifier (5), that is, the current is stored in the battery.

[0011] Furthermore, the wind and wave power generation device for cold seas also includes a heating rod for preventing the water flow in the positioning groove from freezing, and the battery is connected to the heating rod.

[0012] The number of the rocking members (3) and pumps (6) is N*M, wherein N and M are both natural numbers greater than 1; the pipelines include N*M primary pipelines and M main pipelines; the rocking members (3) are divided into N groups; wherein the lower end of each main pipeline is connected to the N primary pipelines of the same group, a motor (7) is provided on each main pipeline, and each motor (7) is connected to a generator (9).

[0013] Furthermore, the rocking member (3) is a neoprene rocking member.

[0014] Furthermore, the swing member (3) is at least 30 cm long, and the carbon fiber rope therein has a diameter of 12 mm.

[0015] Furthermore, the battery is a lead-acid battery.

[0016] The second object of the present invention is to provide a method for positioning a wind wave power generation device for use in cold sea areas; the method comprises the following steps:

[0017] S1. Estimation of wave energy when there is ice: The power generation resources of ocean wave energy are usually quantitatively described by wave energy flux density. The estimation formula of wave energy flux density when there is ice is as follows:

[0018]

[0019] Where: P is the wave energy flow density, the unit is KW / m, which is used to calculate the wave power stored in the entire water body from sea level to the seabed in the direction of wave crest width per meter; ρ refers to the seawater density, which is 1.028kg / m 3 ; k is the wave number, Where L is the wavelength corresponding to the effective period, in meters; T e is the energy period, in seconds, multiplied by 0.9 times the peak period T P To indicate; L and T P All are calculated by SWAN's dynamic spectrum balance equation model; H s is the effective wave height including ice influence, in meters;

[0020] S2. Wave calculation adopts the dynamic spectrum balance equation model, taking wind as the driving force, and calculates the wave field distribution at the project location in the Bohai Sea area based on the following equation:

[0021]

[0022] Where: UFRIC is the wind friction velocity; CDRAG is the wind drag coefficient. When the wind speed WIND10 at a height of 10m is greater than 7.5m / s, CDRAG = (0.8 + 0.065 * WIND10) * 0.001; when WIND10 ≤ 7.5m / s, the recommended value is 0.0013; aice is the ice concentration between 0 and 1; WIND10 is the wind speed at a height of 10m;

[0023] The wind friction velocity UFRIC is calculated according to formula (2); then the JOHNSWAP spectrum is calculated based on UFRIC and gravity acceleration;

[0024] The action density at the current time level is calculated according to the frequency corresponding to the input spectrum peak period, and then the zero-order moment ETOT of wave energy density is obtained; and the effective wave height H considering the ice effect is obtained based on the following formula (3): s

[0025]

[0026] According to the estimated value of wave energy flux density P, the existing slope breakwaters near the Bohai Sea are evaluated to determine the site selection of the power generation slope breakwater.

[0027] S3. Prediction of wave height when there is ice; the prediction formula of wave height when there is ice is as follows:

[0028] R=K Δ R1H s (4)

[0029] Where: R is the wave height when there is ice; K Δis the rough seepage coefficient related to the slope embankment protection structure type, K Δ The value range is 0 to 1; when K Δ =1, indicating a smooth and impermeable breakwater surface, K Δ The smaller it is, the rougher the breakwater surface is; R1 is when K Δ =1,H s =1m, the height of the wave run-up on the smooth and impermeable breakwater face;

[0030] S4. Determine the location of the honeycomb structure and the swing power generation device based on the predicted value of wave height R when there is ice. The R value is a wave height value, which is the height of the wave climbing on the slope embankment. The influence of ice is included in this patent. Normally, the R value fluctuates around the water level. In the case of low water level and small incident wave height, the R value is small, but in high water level, the R value may reach the top of the embankment, so the R value has a range. After calculating the range of wave height by formula (1)-(4) combined with the local water level conditions, the power generation device is arranged within this range to ensure that it can absorb wave energy.

[0031] The third object of the present invention is to provide a positioning module for a wind and wave power generation device for cold sea areas, comprising at least:

[0032] Wave energy estimation module when there is ice; the power generation resources of ocean wave energy are usually quantitatively described by wave energy flux density. The wave energy flux density estimation formula when there is ice is as follows:

[0033]

[0034] Where: P is the wave energy flow density, the unit is KW / m, which is used to calculate the wave power stored in the entire water body from sea level to the seabed in the direction of wave crest width per meter; ρ refers to the seawater density, which is 1.028kg / m 3 ; k is the wave number, Where L is the wavelength corresponding to the effective period, in meters; T e is the energy period, in seconds, multiplied by 0.9 times the peak period T P To indicate; L and T P All are calculated by SWAN's dynamic spectrum balance equation model; H s is the effective wave height including ice influence, in meters;

[0035] The wave calculation adopts the dynamic spectrum balance equation model, takes wind as the driving force, and calculates the wave field distribution at the project location in the Bohai Sea area based on the following equation:

[0036]

[0037] Where: UFRIC is the wind friction velocity; CDRAG is the wind drag coefficient. When the wind speed WIND10 at a height of 10m is greater than 7.5m / s, CDRAG = (0.8 + 0.065 * WIND10) * 0.001; when WIND10 ≤ 7.5m / s, the recommended value is 0.0013; aice is the ice concentration between 0 and 1; WIND10 is the wind speed at a height of 10m;

[0038] The wind friction velocity UFRIC is calculated according to formula (2); then the JOHNSWAP spectrum is calculated based on UFRIC and gravity acceleration;

[0039] The action density at the current time level is calculated according to the frequency corresponding to the input spectrum peak period, and then the zero-order moment ETOT of wave energy density is obtained; and the effective wave height H considering the ice effect is obtained based on the following formula (3): s

[0040]

[0041] According to the estimated value of wave energy flux density P, the existing slope breakwaters near the Bohai Sea are evaluated to determine the site selection of the power generation slope breakwater.

[0042] Wave height prediction module when there is ice; the wave height prediction formula when there is ice is as follows:

[0043] R=K Δ R1H s (4)

[0044] Where: R is the wave height when there is ice; K Δ is the roughness permeability coefficient related to the face block, K Δ The value range is 0 to 1; when K Δ =1, indicating a smooth and impermeable breakwater surface, K Δ The smaller it is, the rougher the breakwater surface is; R1 is when K Δ =1,H s =1m, the height of the wave run-up on the smooth and impermeable breakwater face;

[0045] Position prediction module: According to the predicted value of wave height R when there is ice, the position of the honeycomb structure and the swing power generation device is determined. The value of R in this patent includes the influence of ice. Normally, the R value fluctuates around the water level. In the case of low water level and small incident wave height, the R value is small, but in the case of high water level, the R value may reach the top of the embankment, so the R value has a range. After calculating the range of wave height by formula (1)-(4) combined with the local water level conditions, the power generation device is arranged within this range to ensure that it can absorb wave energy.

[0046] The beneficial effects of the present invention are:

[0047] The present invention can effectively prevent ice load from damaging the wave energy conversion device, and is particularly suitable for wave energy conversion devices in cold areas susceptible to ice disasters. The breakwater is a slope breakwater, and a honeycomb structure is provided on the surface. This structural form can effectively eliminate waves and prevent sea ice from damaging the swing power generation device inside it. The internal space size of the honeycomb structure meets the 360° all-round swing of the neoprene rocker. The neoprene rocker is at least 30 cm long, and is connected to a carbon fiber rope with a diameter of 12 mm. One end of the carbon fiber rope is connected to a pump. When the neoprene rocker is stationary, the carbon fiber rope remains taut. The swing power generation device is provided with a voltage stabilizing rectifier, a neoprene rocker, a spring, a motor, a generator and a pump. When waves hit and strong winds come, the neoprene rocker is driven to swing randomly, and the internal carbon fiber rope pulls the piston to move left, increasing the pressure of the oil pressure in the left chamber of the pump, and the power medium is gathered from the branch pipeline to the main pipe, so that the motor impeller in the main pipe rotates to drive the generator to generate electricity. The wave energy collected by the swing power generation device is then rectified into direct current by the voltage stabilizing rectifier and stored in a lead-acid battery. The lead-acid battery transfers power to the heating rod to prevent the swing parts from freezing, and the remaining power is used as a supplementary source of power supply for the port industrial area.

[0048] 1) The above-mentioned power generation device can be used in ice-free sea areas as well as in sea areas near the coast of cold regions that freeze in winter.

[0049] 2) The proposed neoprene rocker can swing freely under the action of wave energy and wind energy, and the internal carbon fiber rope drives the pump, which in turn drives the motor and generator to generate electricity.

[0050] 3) Using the empirical formula of wave energy flux density and the wave element data provided by the dynamic spectrum balance equation model, the distribution of wave energy flux density when there is ice can be estimated, and then the site selection of the slope breakwater for power generation can be determined.

[0051] 4) The wave height prediction formula used under the consideration of sea ice can be used to estimate the layout location of the swing power generation device.

[0052] 5) A thermostat can be set inside the heating rod used to keep the temperature constant when it reaches 5°C, which can save energy and prevent the swinging parts from freezing.

[0053] 6) The proposed wind-wave complementary wave energy conversion device is a hybrid power generation technology based on multiple clean energy sources proposed by combining the slope-type breakwaters built near the Bohai Sea. It makes full use of the energy-saving, power generation and ice-proof technologies proposed by the existing breakwater projects;

[0054] 7) This technical solution is not only applicable to cold seas with ice, but also to ice-free seas. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Figure 1A cross-sectional view of a preferred embodiment of the present invention;

[0056] Figure 2 It is a front view of the wave-facing side of a preferred embodiment of the present invention;

[0057] Figure 3 It is a partial structural diagram of a preferred embodiment of the present invention, used to show the connection relationship between the rocking member and the pump;

[0058] Figure 4 It is a partial enlarged view of a preferred embodiment of the present invention;

[0059] Figure 5 This is an enlarged view of the main pipe of a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0060] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings:

[0061] See also Figures 1 to 5 , a wind and wave power generation device for cold sea areas, comprising: a honeycomb structure 2, a swing member 3 (preferably a neoprene swing member), a swing power generation device 4, a voltage-stabilizing rectifier 5, a pump 6, a motor 7, a spring 8, a generator 9, a lead-acid battery 10, a heating rod 11, and a motor impeller 12 located on a breakwater 1. Wherein: the breakwater 1 is the entire component. The swing power generation device 4 comprises a swing member 3, a voltage-stabilizing rectifier 5, a pump 6, a motor 7, a spring 8, and a generator 9. The surface of the slope breakwater is provided with a honeycomb structure, which can effectively eliminate waves and prevent sea ice from damaging the swing power generation device inside it. The swing power generation device is fixed inside the honeycomb structure, which can effectively prevent ice load from damaging it. The voltage-stabilizing rectifier converts wave energy AC into DC and stores it in a lead-acid battery. The heating rod is powered by a lead-acid battery, and the temperature controller inside it keeps the temperature unchanged when it reaches 5°C. The wave-facing surface of the swing member 3 can be a flat rectangle or an arc.

[0062] The swing power generation device 4 includes a swing member 3 located in each positioning groove, and the swing member 3 is installed in the positioning groove through a universal head. Multiple groups of swing power generation devices are connected in parallel to effectively improve the power generation efficiency; a carbon fiber rope is embedded in the swing member 3; one end of the carbon fiber rope penetrates into the pump cavity from the center hole of the pump cavity end face, and then is fixedly connected to the left center position of the pump 6 piston; the left chamber of the pump 6 is connected to the motor 7 through a pipeline, and a reset spring 8 is installed on the side wall of the pump to assist the push plate in resetting; the motor 7 is connected to the generator 9 through a power shaft, and the output terminal of the generator 9 is connected to the battery through a voltage stabilizing rectifier 5, that is, the current is stored in the battery.

[0063] Power generation principle: the rocking member 3 tightens the carbon fiber rope during the rocking process, and the carbon fiber rope then drives the piston of the pump 6 to move to the left, the spring is stretched, and the power medium flows into the pipeline from the left chamber, thereby driving the impeller 12 of the hydraulic motor 7 in the pipeline to rotate forward, and the hydraulic motor then drives the generator to generate electricity through the transmission shaft; when there is no wind and no waves, the rocking member 3 is reset. At this time, the piston moves to the right under the action of the spring, and the pipeline is set in a vertical state. Therefore, the power medium flows back from the pipeline to the left chamber under the action of gravity. During the reflux process, the hydraulic motor reverses and also drives the generator to generate electricity. The power medium is preferably a liquid with a lubricating effect.

[0064] like Figure 3 As shown: In order to save the number of generators and improve the efficiency of power generation, on the basis of the above preferred embodiment, the rocking member 3 and the pump 6 are in a one-to-one correspondence, the number of the two is the same, and the two are regarded as a whole, which is divided into M small areas according to the area, and each area has N rocking members 3; since the area is small, each group of N rocking members 3 can be considered to be synchronously moving, then the N pumps 6 corresponding to the N rocking members 3 act synchronously, and the pipeline connected to the N pumps 6 is named as the primary pipeline, and the ends of the N primary pipelines are connected to the lower end of the same main pipeline, so that the oil pressure of the N pumps 6 can be combined into a larger oil pressure, and a motor 7 is provided on each main pipeline, and each motor 7 is connected to a generator 9.

[0065] The rocking member 3 is at least 30 cm long, preferably 30 cm long, and the carbon fiber rope therein has a diameter of 12 mm.

[0066] A positioning module for a wind wave power generation device for cold sea areas, comprising:

[0067] Wave energy estimation module when there is ice; the wave energy flux density estimation formula when there is ice is as follows:

[0068]

[0069] Where: P is the wave energy flow density, unit is KW / m; ρ refers to the seawater density, generally taken as 1.028kg / m 3 ; k is the wave number, its value is equal to Where L is the wavelength, T e is the energy cycle. s is the effective wave height including the influence of ice, in meters. It is reported that with global warming and the annual reduction of Arctic glaciers, the coexistence of floating ice and waves has become a normal phenomenon. Cold waves and strong winds frequently occur in the Bohai Sea region of my country in winter. Wind is the main driving force for wave formation, and cold waves and strong winds are often accompanied by low temperatures, which leads to the freezing of seawater. Therefore, the effective wave height H in formula (1) is s The effect of ice needs to be considered.

[0070] The wave calculation adopts the dynamic spectrum balance equation model, takes wind as the driving force, and calculates the wave field distribution at the project location in the Bohai Sea area based on the following equation:

[0071]

[0072] Where: UFRIC is the wind friction velocity; CDRAG is the wind drag coefficient, with a recommended value of 0.0013; aice is the ice concentration between 0 and 1; WIND10 is the wind speed at an altitude of 10 m.

[0073] The wind friction velocity UFRIC is calculated according to formula (2); the JOHNSWAP spectrum is calculated based on UFRIC and gravity acceleration; then, the action density at the current time level is calculated according to the frequency corresponding to the input spectrum peak period, and then the zero-order moment ETOT of the wave energy density is obtained, and the effective wave height H considering the ice effect is obtained based on the following formula: s

[0074]

[0075] Based on the estimated value of wave energy flow density, the existing slope breakwaters near the Bohai Sea coast were evaluated and the site selection of the power generation slope breakwater was determined.

[0076] Wave height prediction module when there is ice; the wave height prediction formula when there is ice is as follows:

[0077] R=K Δ R1H s (4)

[0078] Where: R is the wave height; K Δ is the rough seepage coefficient related to the slope embankment protection structure type; R1 is K Δ =1,H s =1m, the height of the wave on the smooth slope embankment; H s The estimated wave height considering the effect of ice is H in front of the breakwater. s It is calculated based on the values ​​in formula (1) to formula (4).

[0079] Position prediction module: According to the predicted value of wave height R when there is ice, the position of the honeycomb structure and the swing power generation device is determined. The value of R in this patent includes the influence of ice. Generally, the R value varies near the water level. In the case of low water level and small incident wave height, the R value is small, but in the case of high water level, the R value may reach the top of the dike, so the R value will have a range. After calculating the range of wave height by formula (1)-(4) combined with the local water level conditions, the power generation device is arranged within this range. When hit by waves or wind energy, the neoprene swing part will swing in all directions, and then the push plate will be pulled by the internal carbon fiber rope to increase the pressure in the pump. The power medium is gathered from the branch pipe to the main pipe, so that the motor impeller in the main pipe rotates to drive the generator to generate electricity. The collected electrical energy is stored in the lead-acid battery through the voltage stabilizing rectifier and provides electrical energy for the heating rod, which heats the seawater temperature near the slope breakwater to prevent the nearby seawater from freezing. When the thermostat senses that the temperature reaches 5°C, it keeps the temperature unchanged, which is both energy-saving and effectively prevents the swing part from freezing.

[0080] A method for positioning a wind wave power generation device for use in cold sea areas; comprising the following steps:

[0081] S1. Estimation of wave energy when there is ice: The power generation resources of ocean wave energy are usually quantitatively described by wave energy flux density. The estimation formula of wave energy flux density when there is ice is as follows:

[0082]

[0083] Where: P is the wave energy flow density, the unit is KW / m, which is used to calculate the wave power stored in the entire water body from sea level to the seabed in the direction of wave crest width per meter; ρ refers to the seawater density, which is 1.028kg / m 3 ; k is the wave number, Where L is the wavelength corresponding to the effective period, in meters; T e is the energy period, in seconds, multiplied by 0.9 times the peak period T P To indicate; L and T P All are calculated by SWAN's dynamic spectrum balance equation model; H s is the effective wave height including ice influence, in meters;

[0084] S2. Wave calculation adopts the dynamic spectrum balance equation model, taking wind as the driving force, and calculates the wave field distribution at the project location in the Bohai Sea area based on the following equation:

[0085]

[0086] Where: UFRIC is the wind friction velocity; CDRAG is the wind drag coefficient. When the wind speed WIND10 at a height of 10m is greater than 7.5m / s, CDRAG = (0.8 + 0.065 * WIND10) * 0.001; when WIND10 ≤ 7.5m / s, the recommended value is 0.0013; aice is the ice concentration between 0 and 1; WIND10 is the wind speed at a height of 10m;

[0087] The wind friction velocity UFRIC is calculated according to formula (2); then the JOHNSWAP spectrum is calculated based on UFRIC and gravity acceleration;

[0088] The action density at the current time level is calculated according to the frequency corresponding to the input spectrum peak period, and then the zero-order moment ETOT of wave energy density is obtained; and the effective wave height H considering the ice effect is obtained based on the following formula (3): s

[0089]

[0090] According to the estimated value of wave energy flux density P, the existing slope breakwaters near the Bohai Sea are evaluated to determine the site selection of the power generation slope breakwater.

[0091] S3. Prediction of wave height when there is ice; the prediction formula of wave height when there is ice is as follows:

[0092] R=K Δ R1H s (4)

[0093] Where: R is the wave height when there is ice; K Δ is the rough seepage coefficient related to the slope embankment protection structure type, K Δ The value range is 0 to 1; when K Δ =1, indicating a smooth and impermeable breakwater surface, K Δ The smaller it is, the rougher the breakwater surface is; R1 is when K Δ =1,H s =1m, the height of the wave run-up on the smooth and impermeable breakwater face;

[0094] S4. Determine the location of the honeycomb structure and the swing power generation device based on the predicted value of wave height R when there is ice. The R value is a wave height value, which is the height of the wave climbing on the slope embankment. The influence of ice is included in this patent. Normally, the R value fluctuates around the water level. In the case of low water level and small incident wave height, the R value is small, but in high water level, the R value may reach the top of the embankment, so the R value will have a range. After calculating the range of wave height by formula (1)-(4) combined with the local water level conditions, the power generation device is arranged within this range to ensure that it can absorb wave energy.

[0095] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A wind wave power generation device for cold sea areas, located on the slope surface of a breakwater (1); characterized in that: At least: A plurality of positioning grooves are laid on the slope surface, and the plurality of positioning grooves are sequentially spliced ​​into a honeycomb structure (2); A swing power generation device (4) installed in each positioning slot; Each swing power generation device (4) is connected to a storage battery via a voltage stabilizing rectifier (5); A positioning module, the positioning module comprising: Wave energy estimation module when there is ice; the power generation resources of ocean wave energy are quantitatively described by wave energy flux density. The wave energy flux density estimation formula when there is ice is as follows: Where: P is the wave energy flow density, the unit is KW / m, which is used to calculate the wave power stored in the entire water body from sea level to the seabed in the direction of wave crest width per meter; ρ refers to the seawater density, which is 1.028kg / m 3 ; k is the wave number, L is the wavelength corresponding to the effective period, in meters; T e is the energy period, in seconds, multiplied by 0.9 times the peak period T P To indicate; L and T P All are calculated by SWAN's dynamic spectrum balance equation model; H s is the effective wave height including ice influence, in meters; The wave calculation adopts the dynamic spectrum balance equation model, takes wind as the driving force, and calculates the wave field distribution at the project location in the Bohai Sea area based on the following equation: Where: UFRIC is the wind friction velocity; CDRAG is the wind drag coefficient. When the wind speed WIND10 at a height of 10m is greater than 7.5m / s, CDRAG = (0.8 + 0.065 * WIND10) * 0.001; when WIND10 ≤ 7.5m / s, the recommended value is 0.0013; aice is the ice concentration between 0 and 1; WIND10 is the wind speed at a height of 10m; The wind friction velocity UFRIC is calculated according to formula (2); then the JOHNSWAP spectrum is calculated based on UFRIC and gravity acceleration; The action density at the current time level is calculated according to the frequency corresponding to the input spectrum peak period, and then the zero-order moment ETOT of wave energy density is obtained; and the effective wave height H considering the ice effect is obtained based on the following formula (3): s Based on the estimated value of wave energy flux density P, the existing slope breakwaters near the Bohai Sea are evaluated to determine the site selection for the power generation slope breakwater. Wave height prediction module when there is ice; the wave height prediction formula when there is ice is as follows: R=K Δ R1H s (4) Where: R is the wave height when there is ice; K Δ is the rough seepage coefficient related to the slope embankment protection structure type, K Δ The value range is 0 to 1; when K Δ =1, indicating a smooth and impermeable breakwater surface, K Δ The smaller it is, the rougher the breakwater surface is; R1 is when K Δ =1,H s =1m, the height of the wave run-up on the smooth and impermeable breakwater face; Position prediction module; according to the predicted value of wave height R when there is ice, the position of the honeycomb structure and the swing power generation device is determined; after calculating the range of wave height R by formula (1)-(4) combined with the local water level conditions, the power generation device is arranged within this range to ensure that it can absorb wave energy.

2. The wind wave power generation device for cold sea areas according to claim 1, characterized in that: The swing power generation device (4) comprises a swing member (3), the swing member (3) is installed in a positioning groove through a universal head, and a carbon fiber rope is embedded in the swing member (3); one end of the carbon fiber rope is fixedly connected to the left side of the piston of the pump (6); the left chamber of the pump (6) is connected to the motor (7) through a pipeline, and a return spring (8) is installed on the right side of the piston of the pump (6); the motor (7) is connected to the generator (9) through a power shaft, and the output terminal of the generator (9) is connected to the battery through a voltage stabilizing rectifier (5).

3. The wind wave power generation device for cold sea areas according to claim 1 or 2, characterized in that: The wind and wave power generation device for cold sea areas also includes a heating rod for preventing the water flow in the positioning groove from freezing, and the storage battery is connected to the heating rod.

4. The wind wave power generation device for cold sea areas according to claim 2, characterized in that: The number of the rocking members (3) and pumps (6) is N*M, wherein N and M are both natural numbers greater than 1; the pipelines include N*M primary pipelines and M main pipelines; the rocking members (3) are divided into N groups; wherein the lower end of each main pipeline is connected to the N primary pipelines of the same group, a motor (7) is provided on each main pipeline, and each motor (7) is connected to a generator (9).

5. The wind wave power generation device for cold sea areas according to claim 1, characterized in that: The rocking member (3) is a neoprene rocking member.

6. The wind wave power generation device for cold sea areas according to claim 2, characterized in that: The swing member (3) is at least 30 cm long and the carbon fiber rope has a diameter of 12 mm.

7. The wind wave power generation device for cold sea areas according to claim 1, characterized in that: The storage battery is a lead-acid battery.

8. A positioning method for a wind wave power generation device for cold sea areas according to any one of claims 1 to 6, characterized in that: The steps include: S1. Estimation of wave energy when there is ice; S2. Wave calculation adopts the dynamic spectrum balance equation model, taking wind as the driving force, and calculates the wave field distribution at the project location in the Bohai Sea area based on the following equation: Where: UFRIC is the wind friction velocity; CDRAG is the wind drag coefficient. When the wind speed WIND10 at a height of 10m is greater than 7.5m / s, CDRAG = (0.8 + 0.065 * WIND10) * 0.001; when WIND10 ≤ 7.5m / s, the recommended value is 0.0013; aice is the ice concentration between 0 and 1; WIND10 is the wind speed at a height of 10m; The wind friction velocity UFRIC is calculated according to formula (2); then the JOHNSWAP spectrum is calculated based on UFRIC and gravity acceleration; The action density at the current time level is calculated according to the frequency corresponding to the input spectrum peak period, and then the zero-order moment ETOT of wave energy density is obtained; and the effective wave height H considering the ice effect is obtained based on the following formula (3): s Based on the estimated value of wave energy flux density P, the existing slope breakwaters near the Bohai Sea are evaluated to determine the site selection for the power generation slope breakwater. S3, prediction of wave height when there is ice; S4. According to the predicted value of wave height R when there is ice, the positions of the honeycomb structure and the swing power generation device are determined.

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