Wave power generation device control method and system

Abstract

The invention relates to a wave power generation device control method and system, and relates to the field of green energy technologies, and the method comprises the steps that the water inlet space proportion of a compression device is obtained; a detection interval with the current time point as the rear end point and the width as the preset detection duration is established on a preset time axis, and the water inlet space proportions obtained at all the time points in the detection interval are combined to determine a water inlet proportion combination; calculating according to each water inlet space proportion in the water inlet proportion combination to determine a regional water inlet proportion; judging whether the area water inlet proportion is greater than a preset bearing upper limit proportion or not; if the area water inlet proportion is not larger than the bearing upper limit proportion, a water inlet of the compression device is controlled to be kept at the original position; and if the area water inlet proportion is larger than the bearing upper limit proportion, the water inlet of the compression device is controlled to move upwards by a preset unit distance. The present application has an effect of reducing the occurrence of a situation in which the life of the compression device is affected.

Description

Technical Field

[0001] The present application relates to the field of green energy technology, and in particular to a wave power generation device control method and system. Background Art

[0002] With the development of the transportation industry, maritime transportation has become an important mode of transportation, so ship technology has been vigorously developed. At present, the main sources of power support for ships are battery storage power generation and motor power generation, both of which have certain disadvantages and are not in line with the sustainable development of resources. Therefore, the concept of using waves to generate electricity is introduced.

[0003] In the related technology, the current wave power generation devices such as the oscillating water column wave energy power generation system include a compression device, a turbine device, a generator, etc. When waves are generated at sea, the waves will enter the compression device through the opening of the compression device, and the air inside the compression device will be compressed to form a high-speed airflow. At this time, the airflow can drive the turbine device to generate a power source, so that the generator can generate electricity under the action of the power source.

[0004] In the above-mentioned related technologies, when waves are generated at sea, the waves will enter the compression device, and the wave conditions at sea are not fixed. At this time, there may be a situation where the external waves are large and the amount of waves entering the compression device is large. At this time, the compression device may not be able to bear all the waves, which will cause the compression device to be under excessive pressure and affect its service life. There is still room for improvement. Summary of the invention

[0005] In order to reduce the possibility that the life of a compression device is affected, the present application provides a wave power generation device control method and system.

[0006] In a first aspect, the present application provides a wave power generation device control method, which adopts the following technical solution: A method for controlling a wave power generation device, comprising: Obtain the water inlet space ratio of the compression device; A detection interval with the current time point as the rear end point and a width of the preset detection duration is established on the preset time axis, and the water inflow space proportions obtained at each time point in the detection interval are combined to determine the water inflow proportion combination; Calculate the proportion of each water inlet space in the water inlet proportion combination to determine the regional water inlet proportion; Determine whether the water inflow ratio of the area is greater than the preset upper limit ratio; If the water inflow ratio of the area is not greater than the load upper limit ratio, the water inlet of the compression device is controlled to maintain the original position; If the water inlet ratio of the area is greater than the upper limit ratio of the load, the water inlet of the compression device is controlled to move upward by a preset unit distance.

[0007] Optionally, the step of calculating the proportion of each water inlet space in the water inlet proportion combination to determine the regional water inlet proportion includes: A water inlet space ratio is randomly selected from all water inlet space ratios as the standard water inlet ratio, and the remaining water inlet space ratios are defined as the comparison water inlet ratios; The difference between the standard water inlet ratio and the comparison water inlet ratio is calculated to determine the difference water inlet ratio, and the overall deviation value is determined based on all the difference water inlet ratios; Determine the overall deviation value with the smallest value according to the preset sorting rules, and define the standard water inflow proportion corresponding to the overall deviation value as the representative water inflow proportion; Calculate the average of all water inlet space proportions to determine the average water inlet proportion; The regional water inflow ratio is determined based on the representative water inflow ratio, the average water inflow ratio and the preset calculation weight parameters.

[0008] Optionally, after the overall deviation value is determined, the wave power generation device control method further includes: Determine whether there are at least two standard water inlet proportions with the same and minimum overall deviation values; If there are not at least two standard inlet water proportions with the same overall deviation value and the smallest, the standard inlet water proportion corresponding to the smallest overall deviation value is defined as the representative inlet water proportion; If there are at least two standard inlet water proportions with the same overall deviation value and the smallest overall deviation value, the standard inlet water proportion corresponding to the smallest overall deviation value is defined as the alternative inlet water proportion; A unit interval with a width of a preset unit time length is established with the current time point as the rear end point, and a mean calculation is performed according to the proportion of the water inflow space in the unit interval to determine the unit mean proportion; The difference calculation is performed based on the alternative water inlet ratio and the unit mean ratio to determine the interval water inlet ratio; The interval water inlet ratio with the smallest value is determined according to the sorting rule, and the alternative water inlet ratio corresponding to the interval water inlet ratio is defined as the representative water inlet ratio.

[0009] Optionally, if the water inflow ratio of the area is not greater than the load upper limit ratio, the wave power generation device control method further includes: Determine whether the regional water inflow ratio is within the preset appropriate ratio range; If the regional water inlet ratio is within the appropriate ratio range, the water inlet of the compression device is controlled to maintain the original position; If the regional water inlet ratio is not within the appropriate ratio range, the water inlet direction angle and the water inlet vertical position of the water inlet of the compression device are obtained; The demand compensation ratio is determined by performing a difference calculation based on the regional water inflow ratio and the preset median of the appropriate range; The angle adjustment range is determined according to the preset optimal water inlet angle and the water inlet direction angle, and the distance adjustment range is determined according to the preset lower limit vertical position and the water inlet vertical position; Randomly generate a simulated adjustment angle within the angle adjustment range, randomly generate a simulated adjustment distance within the distance adjustment range, and determine a simulated adjustment combination according to the simulated adjustment angle and the simulated adjustment distance; Determine the simulated compensation ratio corresponding to each simulated adjustment combination according to the preset adjustment matching relationship, and define the simulated adjustment combination when the simulated compensation ratio is consistent with the demand compensation ratio as a valid adjustment combination; A unique adjustment combination is selected from the valid adjustment combinations, and the water inlet of the compression device is adjusted according to the adjustment combination.

[0010] Optionally, the step of selecting a unique adjustment combination to use from the valid adjustment combinations includes: Calculate the angle adjustment duration according to the simulated adjustment angle in the effective adjustment combination and the preset angle adjustment speed; Calculate the position adjustment duration based on the simulated adjustment distance in the effective adjustment combination and the preset distance adjustment speed; The maximum value is calculated in the angle adjustment time and the position adjustment time to determine the required time for the combined adjustment; The required adjustment time of the combination with the smallest value is determined according to the sorting rule, and the valid adjustment combination corresponding to the required adjustment time of the combination is determined as the used adjustment combination.

[0011] Optionally, a unit distance determination step is also included, the step comprising: Get the current vertical position of water inlet; Determine the feasible upward movement distance according to the water inlet vertical position and the preset upper limit vertical position; The difference between the regional water inflow ratio and the upper load limit ratio is calculated to determine the overload water inflow ratio; According to the preset distance matching relationship, the required upward shift distance corresponding to the overload water inflow ratio is determined; Determine whether the feasible upward movement distance is greater than the required upward movement distance; If the feasible upward distance is greater than the required upward distance, the required upward distance is determined as the unit distance; If the feasible upward moving distance is not greater than the required upward moving distance, the feasible upward moving distance is determined as a unit distance and an insufficient signal is output.

[0012] Optionally, after the insufficient signal is output, the wave power generation device control method further includes: Get the current water inlet direction angle; Determine a feasible closing angle according to the water inlet direction angle and the preset reduced water inlet angle; The feasible treatment ratio corresponding to the feasible upward distance is determined based on the distance matching relationship, and the remaining treatment ratio is determined by performing a difference calculation based on the overload water inflow ratio and the feasible treatment ratio; Determine the closing adjustment angle corresponding to the remaining processing ratio according to the preset angle matching relationship; A minimum value calculation is performed among feasible closing angles and closing adjustment angles to determine an effective adjustment angle, and the water inlet adjustment is controlled according to the effective adjustment angle.

[0013] In a second aspect, the present application provides a wave power generation device control system, which adopts the following technical solution: A wave power generation device control system, comprising: An acquisition module, used to obtain the water inlet space ratio of the compression device; A processing module, connected to the acquisition module and the judgment module, for storing and processing information; A judgment module, connected with the acquisition module and the processing module, for judging the information; The processing module establishes a detection interval on a preset time axis with the current time point as the rear end point and a width of the preset detection duration, and combines the water inflow space proportions obtained at each time point in the detection interval to determine a water inflow proportion combination; The processing module calculates the proportion of each water inlet space in the water inlet proportion combination to determine the regional water inlet proportion; The judgment module judges whether the water inflow ratio of the area is greater than the preset upper limit ratio of the load; If the judging module judges that the water inflow ratio of the area is not greater than the load upper limit ratio, the processing module controls the water inlet of the compression device to maintain the original position; If the judgment module determines that the regional water inflow ratio is greater than the load upper limit ratio, the processing module controls the water inlet of the compression device to move upward by a preset unit distance.

[0014] In summary, the present application includes at least one of the following beneficial technical effects: When utilizing wave energy using a wave power generation device, the position of the water inlet can be adjusted according to the water inlet conditions of the compression device, so that the amount of waves entering the air chamber can meet the power generation requirements while reducing the occurrence of excessive load on the compression device, thereby reducing the impact on the life of the compression device due to excessive load; by adjusting the position of the water inlet and the water inlet angle, the required water inlet conditions can be better adapted, thereby facilitating the adjustment of the water inlet volume. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1It is a flow chart of a method for controlling a wave power generation device.

[0016] Figure 2 It is a module flow chart of the control method of the wave power generation device. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solutions and advantages of this application more clear, the following Figure 1-Figure 2 It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0018] The embodiments of the present application are further described in detail below in conjunction with the drawings in the specification.

[0019] The present application discloses a method for controlling a wave power generation device, referring to Figure 1 The method flow of the wave power generation device control method includes the following steps: Step S100: Obtain the water inlet space ratio of the compression device.

[0020] The water inlet space ratio is the ratio of the amount of water entering the air chamber of the compression device to the overall space of the air chamber, which can be determined by installing a water volume monitoring sensor in the air chamber.

[0021] Step S101: establishing a detection interval with the current time point as the rear end point and a width of the preset detection duration on a preset time axis, and combining the water inlet space proportions obtained at each time point in the detection interval to determine a water inlet proportion combination.

[0022] The time axis is a coordinate axis formed by the combination of various time points. The coordinate axis points from the time points that have passed to the time points that have not yet arrived, and the left side of the coordinate axis is the time points that have passed, and the right side of the coordinate axis is the time points that have not yet arrived. The left side of the coordinate axis is defined as the front, and the right side of the coordinate axis is defined as the back; the detection duration is the duration set by the staff to obtain wave data in a short period of time, such as half an hour. Establishing a detection interval can facilitate the acquisition and analysis of data within the detection duration; the water inflow proportion combination is a combination of all water inflow space proportions obtained in the detection interval.

[0023] Step S102: Calculate the water inlet ratio of each area according to the water inlet ratio combination.

[0024] The regional water intake ratio reflects the ratio of water intake space in the area where the current ship is sailing that will cause the water volume in the air chamber to reach under normal circumstances. When the waves in the area are larger, the corresponding water intake space ratio in the detection interval is larger, and the corresponding regional water intake ratio is also larger. Therefore, the regional water intake ratio can objectively reflect the wave size of the area where the ship is sailing; the method for determining the regional water intake ratio can be obtained by calculating the average value of all water intake space ratios, and can also be determined by the method of steps S200-S204.

[0025] Step S103: Determine whether the regional water inflow ratio is greater than a preset upper load limit ratio.

[0026] The upper load limit ratio is the minimum water intake space ratio set by the staff to determine that the compression device has a certain load that will affect its life. The purpose of the judgment is to find out whether the area where the ship is currently traveling will affect the life of the compression device.

[0027] Step S1031: If the water inflow ratio of the area is not greater than the load upper limit ratio, the water inlet of the compression device is controlled to maintain the original position.

[0028] When the proportion of regional water inflow is not greater than the proportion of the upper limit of the load, it means that the possibility of the compression device in the current area being affected by waves and affecting its own life is low, and at this time, normal water intake and power generation operations can be carried out.

[0029] Step S1032: If the water inflow ratio of the area is greater than the upper limit ratio of the load, the water inlet of the compression device is controlled to move upward by a preset unit distance.

[0030] When the proportion of regional water inflow is greater than the proportion of the upper limit of the load, it means that the current wave volume in the area will affect the service life of the compression device. At this time, the water inflow can be reduced by moving the water inlet of the compression device upward, thereby ensuring that the power generation device can generate electricity normally while reducing the impact on the life of the compression device; the movement of the water inlet of the compression device can be driven by the electric energy output by the power generation device itself, and the driving method can be a linear module drive, which is specifically set by the staff according to actual conditions; the unit distance can be a fixed distance set by the staff, and can also be determined by the method of steps S600-S6042.

[0031] The steps of calculating the proportion of each water inlet space in the water inlet proportion combination to determine the regional water inlet proportion include: Step S200: randomly selecting a water inlet space proportion from all water inlet space proportions as a standard water inlet space proportion, and defining the remaining water inlet space proportions as comparison water inlet space proportions.

[0032] Define the standard water inlet ratio and compare the water inlet ratio to distinguish the proportions of different water inlet spaces, which is convenient for subsequent analysis.

[0033] Step S201: performing a difference calculation based on the standard water inlet ratio and the comparison water inlet ratio to determine the difference water inlet ratio, and performing a calculation based on all the difference water inlet ratios to determine the overall deviation value.

[0034] The difference water inlet ratio is the difference between the standard water inlet ratio and the comparison water inlet ratio, and the difference is an absolute value; the overall deviation value is a parameter value that reflects the distance between the currently determined standard water inlet ratio and all other comparison water inlet ratios. The smaller the value, the closer the standard water inlet ratio is to all other comparison water inlet ratios. The calculation method is to sum up all the difference water inlet ratios.

[0035] Step S202: determining the overall deviation value with the smallest value according to a preset sorting rule, and defining the standard water inflow ratio corresponding to the overall deviation value as the representative water inflow ratio.

[0036] The sorting rule is a method set by the staff to sort the numerical values, such as the bubble method. The sorting rule can be used to determine the overall deviation value with the smallest value, that is, the standard water inlet ratio is closest to all other compared water inlet ratios, that is, the standard water inlet ratio can best represent the ratio of all water inlet spaces. At this time, it is defined as the representative water inlet ratio to distinguish different standard water inlet ratios, which is convenient for subsequent analysis.

[0037] Step S203: performing mean calculation according to all water inlet space proportions to determine the mean water inlet proportion.

[0038] The mean water inflow ratio is the average of all water inflow space ratios.

[0039] Step S204: Calculate the regional water inflow ratio according to the representative water inflow ratio, the average water inflow ratio and the preset calculation weight parameters.

[0040] The calculation weight parameter is the weight parameter determined in advance by the staff to divide the representative water inlet ratio and the average water inlet ratio. The regional water inlet ratio can be determined by multiplying the representative water inlet ratio and the average water inlet ratio by their respective corresponding calculation weight parameters. The sum of the calculation weight parameter of the representative water inlet ratio and the calculation weight parameter of the average water inlet ratio is 100%. Under normal circumstances, the calculation weight parameters of the two are both 50%.

[0041] After the overall deviation value is determined, the wave power generation device control method further includes: Step S300: Determine whether there are at least two standard inlet water proportions with the same and minimum overall deviation values.

[0042] The purpose of the judgment is to find out whether there are multiple standard water inlet ratios that meet the requirements, so as to determine the representative water inlet ratio.

[0043] Step S3001: If there are not at least two standard inlet water proportions with the same overall deviation value and the smallest value, the standard inlet water proportion corresponding to the smallest overall deviation value is defined as the representative inlet water proportion.

[0044] When there are not at least two standard inlet water proportions with the same and smallest overall deviation values, it means that there is only one standard inlet water proportion that meets the requirements. In this case, it can be defined as the representative inlet water proportion.

[0045] Step S3002: If there are at least two standard inlet water proportions with the same overall deviation value and the smallest overall deviation value, the standard inlet water proportion corresponding to the smallest overall deviation value is defined as the alternative inlet water proportion.

[0046] When there are at least two standard inlet water ratios with the same and smallest overall deviation values, it means that there are multiple standard inlet water ratios that meet the requirements. At this time, they are defined as alternative inlet water ratios to distinguish different standard inlet water ratios, which is convenient for subsequent analysis.

[0047] Step S301: a unit interval with a width of a preset unit time length is established with the current time point as the rear end point, and a mean calculation is performed according to the proportion of the water inlet space in the unit interval to determine the unit mean proportion.

[0048] The unit time is the fixed time set by the staff. The unit time should be less than the detection time, and the upper limit of the unit time shall not exceed one tenth of the detection time. The unit interval is established to facilitate the acquisition and analysis of data within the unit time; the unit mean proportion is the average value of the proportion of the water-influent space in the unit interval.

[0049] Step S302: performing difference calculation based on the candidate water inlet ratio and the unit mean ratio to determine the interval water inlet ratio.

[0050] The alternate water inlet proportion is the difference between the alternative water inlet proportion and the unit mean proportion, and the difference is an absolute value.

[0051] Step S303: determining the interval water inflow ratio with the smallest value according to the sorting rule, and defining the candidate water inflow ratio corresponding to the interval water inflow ratio as the representative water inflow ratio.

[0052] The sorting rule can be used to determine the interval water inflow ratio with the smallest value, that is, the alternative water inflow ratio is similar to the water inflow situation obtained when the current time is close, and it can be determined as the representative water inflow ratio.

[0053] If the proportion of water inflow in the area is not greater than the proportion of the upper limit of the load, the wave power generation device control method further includes: Step S400: Determine whether the regional water inflow ratio is within a preset appropriate ratio range.

[0054] The appropriate proportion range is the range of regional water inflow proportion that the staff sets to determine that the power generation device can perform power generation operations better. The purpose of the judgment is to know whether the current external water volume can enable the power generation device to perform power generation operations better. The maximum value of the appropriate proportion range is the load upper limit proportion.

[0055] Step S4001: If the regional water inlet ratio is within an appropriate ratio range, the water inlet of the compression device is controlled to maintain its original position.

[0056] When the regional water inlet ratio is within the appropriate range, it means that the current power generation device can perform power generation operations well, that is, the water inlet at this time meets the power generation requirements. At this time, the water inlet of the compression device is maintained in the original position to ensure the stability of the water inlet.

[0057] Step S4002: If the regional water inlet ratio is not within the appropriate ratio range, the water inlet direction angle and the water inlet vertical position of the water inlet of the compression device are obtained.

[0058] When the regional water inlet ratio is not within the appropriate ratio range, it means that the current water inlet volume is small and cannot meet the power generation requirements of the power generation device, and further analysis is needed; the water inlet direction angle is the angle corresponding to the water inlet of the compression device compared to the set vertical upward direction, and the water inlet vertical position is the position point of the water inlet in the vertical direction. Both can be obtained by monitoring the water inlet of the compression device.

[0059] Step S401: performing a difference calculation based on the regional water inflow ratio and the median of a preset appropriate range to determine the demand compensation ratio.

[0060] The median of the suitable range is the middle value of the suitable proportion range, and the demand compensation proportion is the proportion of the water intake that needs to be supplemented, which is determined by subtracting the regional water intake proportion from the median of the suitable range.

[0061] Step S402: determining an angle adjustment range according to a preset optimal water inlet angle and a water inlet direction angle, and determining a distance adjustment range according to a preset lower limit vertical position and a water inlet vertical position.

[0062] The optimal water inlet angle is the angle of the water inlet that is most convenient for waves to enter the air chamber. This angle is also determined by the staff through multiple experiments in advance; the angle adjustment range is the angle range of the water inlet that can be adjusted to increase the water inlet amount of the air chamber, that is, the angle range between the water inlet direction angle and the optimal water inlet angle; the lower limit vertical position is the lowest position that the water inlet can reach in the vertical direction, and the distance adjustment range is the distance that the water inlet can be moved in the vertical direction to increase the water inlet amount of the air chamber.

[0063] Step S403: randomly generating a simulated adjustment angle in the angle adjustment range, and randomly generating a simulated adjustment distance in the distance adjustment range, and determining a simulated adjustment combination according to the simulated adjustment angle and the simulated adjustment distance.

[0064] The adjustment of the water inlet can be simulated by randomly generating simulated adjustment angles and simulated adjustment distances, which is convenient for subsequent analysis; the simulated adjustment combination includes a combination of simulated adjustment angles and simulated adjustment distances, which is convenient for subsequent analysis.

[0065] Step S404: Determine the simulated compensation ratio corresponding to each simulated adjustment combination according to the preset adjustment matching relationship, and define the simulated adjustment combination when the simulated compensation ratio is consistent with the demand compensation ratio as a valid adjustment combination.

[0066] The simulated compensation ratio is the ratio of the amount of water that will increase in the air chamber under theoretical circumstances after the water inlet is adjusted according to the data in the simulated adjustment combination. Different simulated adjustment combinations indicate different adjustments to the water inlet. At this time, the water inlet's convenience for water inflow is also different, so the corresponding simulated compensation ratios are also different. The adjustment matching relationship between the two is determined in advance by the staff through multiple tests; when the simulated compensation ratio is consistent with the demand compensation ratio, it means that when the water inlet is adjusted according to the data in the simulated adjustment combination, the water inflow of the air chamber can better meet the requirements. Therefore, it is defined as an effective adjustment combination to distinguish different simulated adjustment combinations for subsequent analysis.

[0067] Step S405: Select a unique adjustment combination from the valid adjustment combinations, and adjust the water inlet of the compression device according to the adjustment combination.

[0068] The water inlet of the compression device is adjusted by selecting and using an adjustment combination so that the water inlet amount of the air chamber can meet the water inlet requirement, wherein the adjustment combination to be used can be randomly determined among all valid adjustment combinations, and can also be determined by the method of steps S500-S503.

[0069] The steps to select a unique adjustment combination from the valid adjustment combinations include: Step S500: Calculate the angle adjustment duration according to the simulated adjustment angle in the effective adjustment combination and the preset angle adjustment speed.

[0070] The angle adjustment speed is the speed at which the angle of the water inlet is adjusted, and the angle adjustment duration is the duration required to adjust the simulated adjustment angle in the effective adjustment combination, which is determined by dividing the simulated adjustment angle by the angle adjustment speed.

[0071] Step S501: Calculate and determine the position adjustment duration according to the simulated adjustment distance in the effective adjustment combination and the preset distance adjustment speed.

[0072] The distance adjustment speed is the speed at which the water inlet moves in the vertical direction, and the position adjustment duration is the duration required to adjust according to the simulated adjustment distance in the effective adjustment combination, which is determined by dividing the simulated adjustment distance by the distance adjustment speed.

[0073] Step S502: Finding the maximum value among the angle adjustment duration and the position adjustment duration to determine the combined adjustment required duration.

[0074] The combination adjustment requirement time is the time required to adjust the water inlet according to the effective adjustment combination.

[0075] Step S503: determining the required adjustment time of the combination with the smallest value according to the sorting rule, and determining the valid adjustment combination corresponding to the required adjustment time of the combination as the used adjustment combination.

[0076] The adjustment time required for the combination with the smallest value can be determined through the sorting rules. That is, the overall efficiency is highest when adjustments are made according to the corresponding effective adjustment combination. Therefore, it can be determined as the adjustment combination to be used.

[0077] The step of determining the unit distance is also included, and the step comprises: Step S600: Obtain the current vertical position of water inlet.

[0078] Obtaining the current vertical position of the water inlet can facilitate subsequent movement control of the water inlet.

[0079] Step S601: determining a feasible upward movement distance according to the water inlet vertical position and a preset upper limit vertical position.

[0080] The upper vertical position is the uppermost position to which the water inlet can be moved by the track for the water inlet to move in the vertical direction, and the feasible upward movement distance is the distance value between the water inlet vertical position and the upper vertical position.

[0081] Step S602: Calculate the difference between the regional water inflow ratio and the upper load limit ratio to determine the overload water inflow ratio.

[0082] The overload water inflow ratio is the value obtained by deducting the upper limit load ratio from the regional water inflow ratio.

[0083] Step S603: Determine the required upward distance corresponding to the overload water inflow ratio according to a preset distance matching relationship.

[0084] The required upward movement distance is the distance value that needs to be controlled to move the water inlet upward when dealing with the overload water inlet ratio. Different overload water inlet ratios indicate different water inlet volumes that need to be controlled, and the corresponding required upward movement distances are also different. The distance matching relationship between the two is determined by the staff through multiple tests in advance.

[0085] Step S604: Determine whether the feasible upward moving distance is greater than the required upward moving distance.

[0086] The purpose of the judgment is to find out whether the distance available for upward movement meets the requirements.

[0087] Step S6041: If the feasible upward moving distance is greater than the required upward moving distance, the required upward moving distance is determined as a unit distance.

[0088] When the feasible upward movement distance is greater than the required upward movement distance, it means that the distance available for upward movement meets the demand. At this time, the required upward movement distance is determined as a unit distance for the water inlet of the compression device to move.

[0089] Step S6042: If the feasible upward moving distance is not greater than the required upward moving distance, the feasible upward moving distance is determined as a unit distance and an insufficient signal is output.

[0090] When the feasible upward movement distance is not greater than the required upward movement distance, it means that the available upward movement distance cannot meet the demand. At this time, the feasible upward movement distance is determined as a unit distance for the water inlet of the compression device to move. At the same time, an insufficient signal is output to identify the situation, which is convenient for subsequent analysis.

[0091] After the insufficient signal is output, the wave power generation device control method further includes: Step S700: Obtain the current water inlet direction angle.

[0092] By obtaining the current water inlet direction angle, the angle direction of the water inlet can be known, which is convenient for subsequent adjustment of the water inlet angle.

[0093] Step S701: determining a feasible closing angle according to the water inlet direction angle and a preset reduced water inlet angle.

[0094] The reduced water inlet angle is the angle at which the water inlet of the compression device is least convenient for external waves to enter the air chamber under theoretical conditions, and the feasible closing angle is the angle at which the current water inlet can be adjusted.

[0095] Step S702: Determine the feasible treatment ratio corresponding to the feasible upward distance according to the distance matching relationship, and perform a difference calculation based on the overload water inflow ratio and the feasible treatment ratio to determine the remaining treatment ratio.

[0096] The feasible treatment ratio is the ratio of water volume that can be reduced after the water inlet of the compression device moves upward a feasible upward distance. The remaining treatment ratio is the ratio of water volume that still needs to be reduced, which is determined by subtracting the feasible treatment ratio from the overload water inlet ratio.

[0097] Step S703: Determine the closing adjustment angle corresponding to the remaining processing ratio according to the preset angle matching relationship.

[0098] The closing adjustment angle is the angle of the water inlet that needs to be adjusted to reduce the water inlet volume by the remaining treatment ratio. The angle matching relationship between the two is determined by the staff through multiple tests in advance and will not be elaborated here.

[0099] Step S704: Calculate the minimum value among the feasible closing angles and the closing adjustment angles to determine the effective adjustment angle, and control the water inlet adjustment according to the effective adjustment angle.

[0100] The effective adjustment angle is the minimum angle that needs to be adjusted to meet the water inlet adjustment requirement. The water inlet is adjusted by the effective adjustment angle so that the water inlet of the air chamber can meet the requirement.

[0101] Reference Figure 2 Based on the same inventive concept, an embodiment of the present invention provides a wave power generation device control system, including: An acquisition module, used to obtain the water inlet space ratio of the compression device; A processing module, connected to the acquisition module and the judgment module, for storing and processing information; A judgment module, connected with the acquisition module and the processing module, for judging the information; The processing module establishes a detection interval on a preset time axis with the current time point as the rear end point and a width of the preset detection duration, and combines the water inflow space proportions obtained at each time point in the detection interval to determine a water inflow proportion combination; The processing module calculates the proportion of each water inlet space in the water inlet proportion combination to determine the regional water inlet proportion; The judgment module judges whether the water inflow ratio of the area is greater than the preset upper limit ratio of the load; If the judging module judges that the water inflow ratio of the area is not greater than the load upper limit ratio, the processing module controls the water inlet of the compression device to maintain the original position; If the judgment module determines that the water inflow ratio of the area is greater than the load upper limit ratio, the processing module controls the water inlet of the compression device to move upward by a preset unit distance; The regional flooding ratio determination module is used to more accurately determine the regional flooding ratio of the area where the ship is located; A standard water inlet ratio screening module is used to screen multiple standard water inlet ratios that meet the requirements; The water volume increase adjustment module adjusts the water inlet when the water volume is low; A usage adjustment combination determination module is used to determine a unique usage adjustment combination; A unit distance determination module, used to determine the unit distance of the water inlet adjustment; The water volume reduction adjustment module adjusts the water inlet angle to reduce the water volume of the compression device when the unit distance cannot meet the requirements.

[0102] Those skilled in the art can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional modules is used as an example. In actual applications, the above-mentioned functions can be assigned to different functional modules as needed, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. The specific working process of the system, device and unit described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

Claims

1. A wave power generation device control method, characterized in that: include: Obtain the water inlet space ratio of the compression device; A detection interval with the current time point as the rear end point and a width of the preset detection duration is established on the preset time axis, and the water inflow space proportions obtained at each time point in the detection interval are combined to determine the water inflow proportion combination; Calculate the proportion of each water inlet space in the water inlet proportion combination to determine the regional water inlet proportion; Determine whether the water inflow ratio of the area is greater than the preset upper limit ratio; If the water inflow ratio of the area is not greater than the load upper limit ratio, the water inlet of the compression device is controlled to maintain the original position; If the water inlet ratio of the area is greater than the upper limit ratio of the load, the water inlet of the compression device is controlled to move upward by a preset unit distance.

2. The wave power generation device control method according to claim 1, characterized in that: The steps of calculating the proportion of each water inlet space in the water inlet proportion combination to determine the regional water inlet proportion include: A water inlet space ratio is randomly selected from all water inlet space ratios as the standard water inlet ratio, and the remaining water inlet space ratios are defined as the comparison water inlet ratios; The difference between the standard water inlet ratio and the comparison water inlet ratio is calculated to determine the difference water inlet ratio, and the overall deviation value is determined based on all the difference water inlet ratios; Determine the overall deviation value with the smallest value according to the preset sorting rules, and define the standard water inflow proportion corresponding to the overall deviation value as the representative water inflow proportion; Calculate the average of all water inlet space proportions to determine the average water inlet proportion; The regional water inflow ratio is determined based on the representative water inflow ratio, the average water inflow ratio and the preset calculation weight parameters.

3. The wave power generation device control method according to claim 2, characterized in that: At After the overall deviation value is determined, the wave power generation device control method further includes: Determine whether there are at least two standard water inlet proportions with the same and minimum overall deviation values; If there are not at least two standard inlet water proportions with the same overall deviation value and the smallest, the standard inlet water proportion corresponding to the smallest overall deviation value is defined as the representative inlet water proportion; If there are at least two standard inlet water proportions with the same overall deviation value and the smallest overall deviation value, the standard inlet water proportion corresponding to the smallest overall deviation value is defined as the alternative inlet water proportion; A unit interval with a width of a preset unit time length is established with the current time point as the rear end point, and a mean calculation is performed according to the proportion of the water inflow space in the unit interval to determine the unit mean proportion; The difference calculation is performed based on the alternative water inlet ratio and the unit mean ratio to determine the interval water inlet ratio; The interval water inlet ratio with the smallest value is determined according to the sorting rule, and the alternative water inlet ratio corresponding to the interval water inlet ratio is defined as the representative water inlet ratio.

4. The wave power generation device control method according to claim 2, characterized in that: If the proportion of water inflow in the area is not greater than the proportion of the upper limit of the load, the wave power generation device control method further includes: Determine whether the regional water inflow ratio is within the preset appropriate ratio range; If the regional water inlet ratio is within the appropriate ratio range, the water inlet of the compression device is controlled to maintain the original position; If the regional water inlet ratio is not within the appropriate ratio range, the water inlet direction angle and the water inlet vertical position of the water inlet of the compression device are obtained; The demand compensation ratio is determined by performing a difference calculation based on the regional water inflow ratio and the preset median of the appropriate range; The angle adjustment range is determined according to the preset optimal water inlet angle and the water inlet direction angle, and the distance adjustment range is determined according to the preset lower limit vertical position and the water inlet vertical position; Randomly generate a simulated adjustment angle within the angle adjustment range, randomly generate a simulated adjustment distance within the distance adjustment range, and determine a simulated adjustment combination according to the simulated adjustment angle and the simulated adjustment distance; Determine the simulated compensation ratio corresponding to each simulated adjustment combination according to the preset adjustment matching relationship, and define the simulated adjustment combination when the simulated compensation ratio is consistent with the demand compensation ratio as a valid adjustment combination; A unique adjustment combination is selected from the valid adjustment combinations, and the water inlet of the compression device is adjusted according to the adjustment combination.

5. The wave power generation device control method according to claim 4, characterized in that: The steps to select a unique adjustment combination from the valid adjustment combinations include: Calculate the angle adjustment duration according to the simulated adjustment angle in the effective adjustment combination and the preset angle adjustment speed; Calculate the position adjustment duration based on the simulated adjustment distance in the effective adjustment combination and the preset distance adjustment speed; The maximum value is calculated in the angle adjustment time and the position adjustment time to determine the required time for the combined adjustment; The required adjustment time of the combination with the smallest value is determined according to the sorting rule, and the valid adjustment combination corresponding to the required adjustment time of the combination is determined as the used adjustment combination.

6. The wave power generation device control method according to claim 1, characterized in that: The step of determining the unit distance is also included, and the step comprises: Get the current vertical position of water inlet; Determine the feasible upward movement distance according to the water inlet vertical position and the preset upper limit vertical position; The difference between the regional water inflow ratio and the upper load limit ratio is calculated to determine the overload water inflow ratio; According to the preset distance matching relationship, the required upward shift distance corresponding to the overload water inflow ratio is determined; Determine whether the feasible upward movement distance is greater than the required upward movement distance; If the feasible upward distance is greater than the required upward distance, the required upward distance is determined as the unit distance; If the feasible upward moving distance is not greater than the required upward moving distance, the feasible upward moving distance is determined as a unit distance and an insufficient signal is output.

7. The wave power generation device control method according to claim 6, characterized in that: After the insufficient signal is output, the wave power generation device control method further includes: Get the current water inlet direction angle; Determine a feasible closing angle according to the water inlet direction angle and the preset reduced water inlet angle; The feasible treatment ratio corresponding to the feasible upward distance is determined based on the distance matching relationship, and the remaining treatment ratio is determined by performing a difference calculation based on the overload water inflow ratio and the feasible treatment ratio; Determine the closing adjustment angle corresponding to the remaining processing ratio according to the preset angle matching relationship; A minimum value calculation is performed among feasible closing angles and closing adjustment angles to determine an effective adjustment angle, and the water inlet adjustment is controlled according to the effective adjustment angle.

8. A wave power generation device control system, characterized in that: include: An acquisition module, used to obtain the water inlet space ratio of the compression device; A processing module, connected to the acquisition module and the judgment module, for storing and processing information; A judgment module, connected with the acquisition module and the processing module, for judging the information; The processing module establishes a detection interval on a preset time axis with the current time point as the rear end point and a width of the preset detection duration, and combines the water inflow space proportions obtained at each time point in the detection interval to determine a water inflow proportion combination; The processing module calculates the proportion of each water inlet space in the water inlet proportion combination to determine the regional water inlet proportion; The judgment module judges whether the water inflow ratio of the area is greater than the preset upper limit ratio of the load; If the judging module judges that the water inflow ratio of the area is not greater than the load upper limit ratio, the processing module controls the water inlet of the compression device to maintain the original position; If the judgment module determines that the regional water inflow ratio is greater than the load upper limit ratio, the processing module controls the water inlet of the compression device to move upward by a preset unit distance.

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