Multi-source ocean energy site selection method and system

Abstract

The invention discloses a multi-source ocean energy site selection method and system, relates to the field of electric power energy, and solves the problem of poor site selection effect of the existing multi-source ocean energy site selection method, and the method comprises the steps: S1, carrying out the real-time tidal energy index monitoring of a region to be subjected to site selection, combining a monitoring result with the historical data of the tidal energy index, and carrying out the site selection of the region to be subjected to site selection; s2, according to the tidal energy resource monitoring data, carrying out tidal resource development area screening on the to-be-selected area, carrying out wave energy index analysis on a non-tidal resource development area, carrying out wave energy index analysis on the non-tidal resource development area, and carrying out wave energy index analysis on the non-tidal resource development area; s3, ocean energy resource development site selection is conducted on each area to be subjected to site selection according to the regional energy analysis data, and the comprehensiveness and accuracy of the multi-source ocean energy site selection method can be improved.

Description

Technical Field

[0001] The present invention belongs to the field of electric energy, relates to regional site selection technology, and specifically provides a multi-source ocean energy site selection method and system. Background Art

[0002] The existing multi-source ocean energy site selection method has the following specific defects when selecting energy sites:

[0003] 1. The existing multi-source ocean energy site selection method can only select a single type of ocean energy resource within a fixed site selection area, and cannot select tidal energy resources, wave energy resources, and temperature difference energy resources at the same time, resulting in a single site selection method and insufficient practical application value;

[0004] 2. When selecting sites for marine tidal energy resources, the existing multi-source ocean energy site selection method cannot combine the real-time tidal energy indicator historical monitoring results of the site selection area, and it is difficult to evaluate the estimated tidal energy power generation, resulting in a lack of accuracy in the site selection results.

[0005] To this end, we propose a multi-source ocean energy site selection method and system. Summary of the Invention

[0006] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a multi-source ocean energy site selection method and system, and the present invention aims to improve the accuracy and comprehensiveness of the multi-source ocean energy site selection method.

[0007] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a multi-source ocean energy site selection method, comprising the following specific steps:

[0008] Step S1: real-time tidal energy index monitoring is performed on the area to be selected, the monitoring results are combined with the historical data of tidal energy indicators, and a comprehensive analysis is performed to obtain the deviation of the tidal energy estimated power generation corresponding to the area to be selected, thereby obtaining tidal energy resource monitoring data;

[0009] Step S2: screening the tidal resource development area for the site selection area based on the tidal energy resource monitoring data, analyzing the wave energy index of the non-tidal resource development area, and obtaining regional energy analysis data based on the analysis results;

[0010] Step S3: Select a site for ocean energy resource development for each area to be selected based on regional energy analysis data.

[0011] Furthermore, the step S1 further includes the following specific steps:

[0012] Step S11: acquiring an ocean energy site selection area, dividing the ocean energy site selection area into a plurality of to-be-selected sites, and selecting a sample to-be-selected site selection area from the divided plurality of to-be-selected sites;

[0013] Step S12: performing real-time tidal energy resource monitoring on the sample area to be sited, and obtaining the tidal resource power generation corresponding to the real-time tidal power generation period according to the monitoring results;

[0014] Step S13: performing a comprehensive power generation evaluation calculation on the sample candidate site selection area based on the tidal resource power generation corresponding to the real-time tidal power generation period, and obtaining the tidal energy estimated power generation deviation corresponding to the sample candidate site selection area;

[0015] Step S14: respectively obtaining the tidal energy estimated power generation deviation corresponding to each to-be-selected site area to obtain tidal energy resource monitoring data.

[0016] Furthermore, the step S12 further includes the following specific steps:

[0017] Step S121: in the process of monitoring tidal energy resources in the sample area to be selected, marking the current tidal cycle as the tidal real-time power generation period;

[0018] Step S122: Obtain the comprehensive power generation corresponding to the tidal power generation units pre-installed in the sample site selection area to obtain the power generation efficiency of the tidal energy device;

[0019] Step S123: Acquire the effective cross-sectional area of ​​the tidal current during the tidal real-time power generation period to obtain the cross-sectional area of ​​the tidal current during the period;

[0020] Step S124: monitoring the water flow velocity in the tidal power generation channel in real time by using a flow velocity monitoring device to obtain the real-time water flow velocity of the channel;

[0021] Step S125: acquiring the start time point of the tidal real-time power generation period to obtain a first period characteristic time point, and acquiring the end time point of the tidal real-time power generation period to obtain a second period characteristic time point;

[0022] Step S126: obtaining the seawater density value corresponding to the sample site selection area to obtain the regional seawater density value;

[0023] Step S127: Calculating the tidal resource power generation corresponding to the real-time tidal power generation period by using the real-time water flow velocity of the flow channel, the tidal cross-sectional area of ​​the time period, the regional seawater density value, the characteristic time point of the first time period, the characteristic time point of the second time period, and the power generation efficiency of the tidal energy device;

[0024] Calculate the tidal resource power generation corresponding to the real-time tidal power generation period.

[0025] Furthermore, the step S123 further includes the following specific steps:

[0026] Set Tj characteristic flow channel cross sections in the tidal power generation channel corresponding to the sample site selection area, obtain the flow channel width value of the water area corresponding to each characteristic flow channel cross section at the current moment, and obtain multiple characteristic flow channel width values;

[0027] Obtaining the flow channel depth value of the water area corresponding to each characteristic flow channel cross section respectively, and obtaining multiple characteristic flow channel depth values;

[0028] Calculate the product of the characteristic flow channel depth value and the corresponding characteristic flow channel width value of the same characteristic flow channel cross-section to obtain multiple flow channel cross-sectional area values, and sum the multiple flow channel cross-sectional area values ​​obtained to obtain the flow channel cross-sectional area sum, calculate the ratio of the flow channel cross-sectional area sum to Tj, and obtain the time period tidal cross-sectional area.

[0029] Furthermore, the step S13 further includes the following steps:

[0030] Obtain the historical tidal records corresponding to the sample area to be sited, select La historical tidal periods from the historical tidal records, repeat the process of obtaining the tidal resource power generation corresponding to the real-time tidal power generation period, obtain the tidal resource power generation corresponding to each historical tidal period respectively, and calculate the average value of the multiple tidal resource power generation obtained to obtain the average tidal resource power generation corresponding to the sample area to be sited;

[0031] Acquire multiple completed tidal power stations in the ocean energy site selection area to obtain multiple sample tidal power stations, obtain the average tidal resource power generation corresponding to each tidal power station, and compare the numerical values ​​of the multiple tidal resource power generation averages obtained, and mark the tidal resource power generation average with the smallest value as the site selection benchmark power generation;

[0032] The difference between the average power generation of tidal resources corresponding to the sample site selection area and the site selection benchmark power generation is calculated to obtain the estimated tidal energy power generation deviation corresponding to the sample site selection area.

[0033] Furthermore, the step S2 further includes the following steps:

[0034] Step S21: obtaining tidal energy resource monitoring data, and obtaining the tidal energy estimated power generation deviation corresponding to each to-be-selected site area based on the tidal energy resource monitoring data;

[0035] Step S22: dividing the area to be selected into a tidal resource development area and a non-tidal energy resource development area according to the tidal energy estimated power generation deviation corresponding to each area to be selected, thereby obtaining tidal energy resource screening data;

[0036] Step S23: in the process of monitoring the wave energy index in the non-tidal energy resource development area, a regional wave monitoring period is set by taking the current corresponding time value as the end time point of the period;

[0037] Step S24: performing wave index monitoring on the non-tidal energy resource development area in the regional wave monitoring period to obtain the wave energy index value corresponding to the regional wave monitoring period;

[0038] Step S25: performing a comprehensive wave energy index analysis on the non-tidal energy resource development area according to the wave energy index value of the period corresponding to the regional wave monitoring period, and obtaining the wave energy index deviation corresponding to the non-tidal energy resource development area;

[0039] Step S26: respectively obtaining the wave energy index deviation corresponding to each non-tidal energy resource development area, and defining the plurality of wave energy index deviations and tidal energy resource screening data as regional energy analysis data.

[0040] Furthermore, the step S24 further includes the following specific steps:

[0041] Obtain the duration of the regional wave monitoring period to obtain the wave monitoring duration;

[0042] A regional wave marker line is set in the non-tidal energy resource development area, and waves passing through the regional wave marker line during the regional wave monitoring period are collected. The collected waves are counted to obtain the number of wave occurrences in the period, and the ratio of the number of wave occurrences in the period to the wave monitoring duration is calculated to obtain the wave occurrence frequency in the period.

[0043] A time period sample wave is selected from the waves collected during the regional wave monitoring period, time period image data is collected for the time period sample wave to obtain a wave video image, and the wave video image is intercepted frame by frame, and the height value of the time period sample wave in each frame of the video image is obtained to obtain multiple wave height values, and the obtained multiple wave height values ​​are compared in numerical value, and the difference between the maximum value wave height and the minimum value wave height is calculated to obtain the time period wave height difference corresponding to the time period sample wave;

[0044] Repeat the process of obtaining the wave height difference of the time period corresponding to the sample wave of the time period, obtain the wave height difference of the time period corresponding to each collected wave, and calculate the average thereof to obtain the wave monitoring height difference of the time period;

[0045] The product of the wave monitoring height difference during the calculation period and the frequency of wave occurrence during the period is used to obtain the wave energy index value corresponding to the regional wave monitoring period.

[0046] Furthermore, the step S25 further includes the following specific steps:

[0047] Obtaining historical tidal records corresponding to the non-tidal energy resource development area, selecting multiple historical wave monitoring periods in the historical tidal records, repeating the process of obtaining wave energy index values ​​for the time periods corresponding to the regional wave monitoring periods, respectively obtaining wave energy index values ​​for the time periods corresponding to each historical wave monitoring period, and calculating the average value of the wave energy index values ​​for the multiple time periods obtained to obtain the mean wave energy index corresponding to the non-tidal energy resource development area;

[0048] In the ocean energy site selection area, multiple completed wave energy power stations are obtained to obtain multiple sample wave energy power stations. The wave energy index value of the time period corresponding to each sample wave energy power station is obtained respectively. The wave energy index values ​​of the multiple time periods obtained are compared, and the wave energy index value of the time period with the smallest value is marked as the wave energy benchmark index value. The difference between the wave energy index mean and the wave energy benchmark index value is calculated to obtain the wave energy index deviation.

[0049] Furthermore, the step S3 further includes the following specific steps:

[0050] Obtain regional energy analysis data, and obtain tidal energy resource screening data and multiple wave energy index deviations based on the regional energy analysis data;

[0051] According to the tidal energy resource screening data, the tidal resource development area and the non-tidal energy development area are obtained respectively;

[0052] If the area to be sited is a tidal resource development area, it will be set as a marine tidal energy site selection area and tidal energy resource development will be carried out there;

[0053] If the area to be sited is a non-tidal resource development area, further site selection analysis will be conducted;

[0054] The details are as follows:

[0055] Obtaining the wave energy index deviation corresponding to each non-tidal resource development area according to the multiple wave energy index deviations;

[0056] If the wave energy index deviation corresponding to the non-tidal resource development area is greater than or equal to 0, it will be set as the ocean wave energy site selection area and wave energy resource development will be carried out there;

[0057] If the wave energy index deviation corresponding to the non-tidal resource development area is less than 0, it will be set as the ocean temperature difference energy site selection area and temperature difference energy resource development will be carried out there.

[0058] A multi-source ocean energy site selection system, comprising:

[0059] Tidal monitoring module: monitors tidal energy indicators in real time in the area to be selected, combines the monitoring results with historical data of tidal energy indicators, and conducts comprehensive analysis to obtain the deviation of tidal energy estimated power generation corresponding to the area to be selected, thereby obtaining tidal energy resource monitoring data;

[0060] Energy analysis module: screens the tidal resource development areas for the selected sites based on tidal energy resource monitoring data, analyzes wave energy indicators for non-tidal resource development areas, and obtains regional energy analysis data based on the analysis results;

[0061] Comprehensive site selection module: select a site for ocean energy resource development in each area to be selected based on regional energy analysis data.

[0062] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0063] 1. The present invention simultaneously selects tidal energy resources, wave energy resources and temperature difference energy resources in the site selection area, which can effectively improve the comprehensiveness of the site selection method, thereby ensuring the practical application value of the site selection method;

[0064] 2. When selecting a site for marine tidal energy resources, the present invention can combine the real-time historical monitoring results of tidal energy indicators in the area to be selected and evaluate the estimated tidal energy power generation, thereby improving the accuracy of the site selection results;

[0065] 3. When evaluating tidal energy resources, the present invention first conducts real-time tidal energy resource monitoring on the sample site selection area to obtain relevant data on the real-time tidal power generation period, such as the power generation efficiency of the tidal energy device, the tidal cross-sectional area during the period, the real-time water velocity of the flow channel, etc., and combines historical tidal records to calculate the average power generation of tidal resources, thereby obtaining the deviation of the estimated tidal energy power generation. The combination of real-time monitoring data and historical data can more accurately evaluate the tidal energy resource potential of the site selection area and reduce the site selection error caused by single or inaccurate data.

[0066] 4. When evaluating wave energy resources, the present invention sets a regional wave monitoring period, collects the number of waves passing through the regional wave marking line, calculates the frequency of wave occurrence in the period, and simultaneously collects and analyzes video images of sample waves in the period, calculates the wave monitoring height difference during the period, and then obtains the period wave energy index value corresponding to the regional wave monitoring period. This can more accurately reflect the wave energy resource status of the area to be sited and improve the accuracy of the site selection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0067] To facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0068] Figure 1It is a diagram of the implementation steps of the present invention;

[0069] Figure 2 This is a block diagram of the overall system of the present invention. DETAILED DESCRIPTION

[0070] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0071] Example 1

[0072] See also Figure 1 The present invention provides a technical solution: a multi-source ocean energy site selection method, comprising the following specific steps:

[0073] Step S1: real-time tidal energy index monitoring is performed on the area to be selected, the monitoring results are combined with the historical data of tidal energy indicators, and a comprehensive analysis is performed to obtain the deviation of the tidal energy estimated power generation corresponding to the area to be selected, thereby obtaining tidal energy resource monitoring data;

[0074] The step S1 further includes the following specific steps:

[0075] Step S11: acquiring an ocean energy site selection area, dividing the ocean energy site selection area into a plurality of to-be-selected sites, and selecting a sample to-be-selected site selection area from the divided plurality of to-be-selected sites;

[0076] Step S12: performing real-time tidal energy resource monitoring on the sample area to be sited, and obtaining the tidal resource power generation corresponding to the real-time tidal power generation period according to the monitoring results;

[0077] The step S12 further includes the following specific steps:

[0078] Step S121: in the process of monitoring tidal energy resources in the sample area to be selected, marking the current tidal cycle as the tidal real-time power generation period;

[0079] Step S122: Obtain the comprehensive power generation corresponding to the tidal power generation units pre-installed in the sample site selection area to obtain the power generation efficiency of the tidal energy device;

[0080] Step S123: Acquire the effective cross-sectional area of ​​the tidal current during the tidal real-time power generation period to obtain the cross-sectional area of ​​the tidal current during the period;

[0081] The step S123 further includes the following specific steps:

[0082] Set Tj characteristic flow channel cross sections in the tidal power generation channel corresponding to the sample site selection area, obtain the flow channel width value of the water area corresponding to each characteristic flow channel cross section at the current moment, and obtain multiple characteristic flow channel width values;

[0083] Obtaining the flow channel depth value of the water area corresponding to each characteristic flow channel cross section respectively, and obtaining multiple characteristic flow channel depth values;

[0084] Calculate the product of the characteristic flow channel depth value and the corresponding characteristic flow channel width value of the same characteristic flow channel cross section to obtain multiple flow channel cross-sectional area values, and sum the obtained multiple flow channel cross-sectional area values ​​to obtain the flow channel cross-sectional area sum, calculate the ratio of the flow channel cross-sectional area sum to Tj, and obtain the tidal cross-sectional area of ​​the time period;

[0085] Step S124: monitoring the water flow velocity in the tidal power generation channel in real time by using a flow velocity monitoring device to obtain the real-time water flow velocity of the channel;

[0086] Step S125: acquiring the start time point of the tidal real-time power generation period to obtain a first period characteristic time point, and acquiring the end time point of the tidal real-time power generation period to obtain a second period characteristic time point;

[0087] Step S126: obtaining the seawater density value corresponding to the sample site selection area to obtain the regional seawater density value;

[0088] Step S127: Calculating the tidal resource power generation corresponding to the real-time tidal power generation period by using the real-time water flow velocity of the flow channel, the tidal cross-sectional area of ​​the time period, the regional seawater density value, the characteristic time point of the first time period, the characteristic time point of the second time period, and the power generation efficiency of the tidal energy device;

[0089] The tidal resource power generation corresponding to the real-time tidal power generation period is calculated using the following formula:

[0090]

[0091] Among them, Cxl is the tidal resource power generation corresponding to the real-time tidal power generation period, Zxl is the power generation efficiency of the tidal energy device, ρ h is the seawater density value, Jsm is the tidal cross-sectional area of ​​the period, Vls is the real-time water velocity of the channel, t1 is the characteristic time point of the first period, and t2 is the characteristic time point of the second period;

[0092] Step S13: performing a comprehensive power generation evaluation calculation on the sample candidate site selection area based on the tidal resource power generation corresponding to the real-time tidal power generation period, and obtaining the tidal energy estimated power generation deviation corresponding to the sample candidate site selection area;

[0093] The step S13 further includes the following steps:

[0094] Obtain the historical tidal records corresponding to the sample area to be sited, select La historical tidal periods from the historical tidal records, repeat the process of obtaining the tidal resource power generation corresponding to the real-time tidal power generation period, obtain the tidal resource power generation corresponding to each historical tidal period respectively, and calculate the average value of the multiple tidal resource power generation obtained to obtain the average tidal resource power generation corresponding to the sample area to be sited;

[0095] Acquire multiple completed tidal power stations in the ocean energy site selection area to obtain multiple sample tidal power stations, obtain the average tidal resource power generation corresponding to each tidal power station, and compare the numerical values ​​of the multiple tidal resource power generation averages obtained, and mark the tidal resource power generation average with the smallest value as the site selection benchmark power generation;

[0096] Calculate the difference between the average tidal resource power generation corresponding to the sample candidate site area and the site selection benchmark power generation to obtain the tidal energy estimated power generation deviation corresponding to the sample candidate site area;

[0097] Step S14: obtaining the tidal energy estimated power generation deviation corresponding to each to-be-selected site area, and obtaining tidal energy resource monitoring data;

[0098] Step S2: screening the tidal resource development area for the site selection area based on the tidal energy resource monitoring data, analyzing the wave energy index of the non-tidal resource development area, and obtaining regional energy analysis data based on the analysis results;

[0099] The step S2 further includes the following steps:

[0100] Step S21: obtaining tidal energy resource monitoring data, and obtaining the tidal energy estimated power generation deviation corresponding to each to-be-selected site area based on the tidal energy resource monitoring data;

[0101] Step S22: dividing the area to be selected into a tidal resource development area and a non-tidal energy resource development area according to the tidal energy estimated power generation deviation corresponding to each area to be selected, thereby obtaining tidal energy resource screening data;

[0102] The step S22 further includes the following steps:

[0103] If the deviation of the estimated tidal energy power generation is greater than or equal to 0, the corresponding area to be selected will be divided into a tidal resource development area;

[0104] If the deviation of the estimated tidal energy power generation is less than 0, the corresponding area to be selected will be classified as a non-tidal resource development area;

[0105] Step S23: in the process of monitoring the wave energy index in the non-tidal energy resource development area, a regional wave monitoring period is set by taking the current corresponding time value as the end time point of the period;

[0106] Step S24: performing wave index monitoring on the non-tidal energy resource development area in the regional wave monitoring period to obtain the wave energy index value corresponding to the regional wave monitoring period;

[0107] The step S24 further includes the following specific steps:

[0108] Obtain the duration of the regional wave monitoring period to obtain the wave monitoring duration;

[0109] A regional wave marker line is set in the non-tidal energy resource development area, and waves passing through the regional wave marker line during the regional wave monitoring period are collected. The collected waves are counted to obtain the number of wave occurrences in the period, and the ratio of the number of wave occurrences in the period to the wave monitoring duration is calculated to obtain the wave occurrence frequency in the period.

[0110] A time period sample wave is selected from the waves collected during the regional wave monitoring period, time period image data is collected for the time period sample wave to obtain a wave video image, and the wave video image is intercepted frame by frame, and the height value of the time period sample wave in each frame of the video image is obtained to obtain multiple wave height values, and the obtained multiple wave height values ​​are compared in numerical value, and the difference between the maximum value wave height and the minimum value wave height is calculated to obtain the time period wave height difference corresponding to the time period sample wave;

[0111] Repeat the process of obtaining the wave height difference of the time period corresponding to the sample wave of the time period, obtain the wave height difference of the time period corresponding to each collected wave, and calculate the average thereof to obtain the wave monitoring height difference of the time period;

[0112] The product of the wave monitoring height difference during the calculation period and the wave occurrence frequency during the period is calculated to obtain the wave energy index value corresponding to the regional wave monitoring period;

[0113] Step S25: performing a comprehensive wave energy index analysis on the non-tidal energy resource development area according to the wave energy index value of the period corresponding to the regional wave monitoring period, and obtaining the wave energy index deviation corresponding to the non-tidal energy resource development area;

[0114] The step S25 further includes the following specific steps:

[0115] Obtaining historical tidal records corresponding to the non-tidal energy resource development area, selecting multiple historical wave monitoring periods in the historical tidal records, repeating the process of obtaining wave energy index values ​​for the time periods corresponding to the regional wave monitoring periods, respectively obtaining wave energy index values ​​for the time periods corresponding to each historical wave monitoring period, and calculating the average value of the wave energy index values ​​for the multiple time periods obtained to obtain the mean wave energy index corresponding to the non-tidal energy resource development area;

[0116] Acquire multiple completed wave energy power stations in the ocean energy site selection area to obtain multiple sample wave energy power stations, obtain the wave energy index value of each time period corresponding to each sample wave energy power station, compare the values ​​of the multiple obtained wave energy index values ​​of the time period, mark the wave energy index value of the time period with the smallest value as the wave energy benchmark index value, calculate the difference between the wave energy index mean and the wave energy benchmark index value, and obtain the wave energy index deviation;

[0117] Step S26: Obtain the wave energy index deviation corresponding to each non-tidal energy resource development area respectively, and define the multiple wave energy index deviations and tidal energy resource screening data as regional energy analysis data;

[0118] Step S3: selecting a site for ocean energy resource development in each area to be selected based on regional energy analysis data;

[0119] The step S3 further includes the following specific steps:

[0120] Obtain regional energy analysis data, and obtain tidal energy resource screening data and multiple wave energy index deviations based on the regional energy analysis data;

[0121] According to the tidal energy resource screening data, the tidal resource development area and the non-tidal energy development area are obtained respectively;

[0122] If the area to be sited is a tidal resource development area, it will be set as a marine tidal energy site selection area and tidal energy resource development will be carried out there;

[0123] If the area to be sited is a non-tidal resource development area, further site selection analysis will be conducted;

[0124] The details are as follows:

[0125] Obtaining the wave energy index deviation corresponding to each non-tidal resource development area according to the multiple wave energy index deviations;

[0126] If the wave energy index deviation corresponding to the non-tidal resource development area is greater than or equal to 0, it will be set as the ocean wave energy site selection area and wave energy resource development will be carried out there;

[0127] If the wave energy index deviation corresponding to the non-tidal resource development area is less than 0, it will be set as the ocean temperature difference energy site selection area and temperature difference energy resource development will be carried out there.

[0128] In this application, if a corresponding calculation formula appears, the above calculation formula is dimensionless and its numerical calculation is performed. The weight coefficient, proportional coefficient and other coefficients in the formula are set to a result value obtained by quantifying each parameter. Regarding the size of the weight coefficient and the proportional coefficient, as long as it does not affect the proportional relationship between the parameter and the result value, it is acceptable.

[0129] Example 2

[0130] See also Figure 2 Based on another concept of the same invention, a multi-source ocean energy site selection system is proposed, comprising a tide monitoring module, an energy analysis module, a comprehensive site selection module, and a server. The tide monitoring module, energy analysis module, and comprehensive site selection module are respectively connected to the server, and the server controls the tide monitoring module, energy analysis module, and comprehensive site selection module respectively.

[0131] The tidal monitoring module monitors the tidal energy indicators of the site selection area in real time, combines the monitoring results with the historical data of tidal energy indicators, and comprehensively analyzes to obtain the deviation of the tidal energy estimated power generation corresponding to the site selection area, thereby obtaining tidal energy resource monitoring data;

[0132] The details are as follows:

[0133] Acquiring an ocean energy site selection area, dividing the ocean energy site selection area into a plurality of site selection areas, and selecting a sample site selection area from the plurality of divided site selection areas;

[0134] It should be noted here that:

[0135] In this application, the ocean energy site selection area involved here is specifically the water area where the objective conditions meet the development of ocean thermal energy resources. The objective conditions involved here include but are not limited to thermal energy resources, geographical location of the water area, transportation conditions and policy restrictions;

[0136] In this application, the multi-source ocean energy involved in the ocean energy site selection herein specifically includes tidal energy, wave energy and temperature difference energy. The corresponding area to be selected herein can be used for the development of ocean energy resources including tidal energy development, wave energy development and temperature difference energy development;

[0137] Conduct real-time tidal energy resource monitoring of the sample site selection area, and obtain the tidal resource power generation corresponding to the real-time tidal power generation period based on the monitoring results;

[0138] The details are as follows:

[0139] In the process of monitoring tidal energy resources in the sample site selection area, the current tidal cycle is marked as the tidal real-time power generation period;

[0140] Obtain the comprehensive power generation corresponding to the pre-installed tidal power generators in the sample site selection area to obtain the power generation efficiency of the tidal energy device;

[0141] It should be noted here that:

[0142] In this application, the comprehensive power generation involved here needs to be obtained based on the historical power generation records of the sea area where the tidal generator set has been installed;

[0143] Obtain the effective cross-sectional area of ​​the tidal current during the real-time tidal power generation period to obtain the cross-sectional area of ​​the tidal current during the period;

[0144] The details are as follows:

[0145] Set Tj characteristic flow channel cross sections in the tidal power generation channel corresponding to the sample site selection area, obtain the flow channel width value of the water area corresponding to each characteristic flow channel cross section at the current moment, and obtain multiple characteristic flow channel width values;

[0146] Obtaining the flow channel depth value of the water area corresponding to each characteristic flow channel cross section respectively, and obtaining multiple characteristic flow channel depth values;

[0147] It should be noted here that:

[0148] In this application, Tj referred to herein is the numerical value corresponding to the characteristic flow channel cross section, and Tj is an integer greater than 0;

[0149] In this application, the influence of underwater topographic factors corresponding to each characteristic flow channel cross section on the numerical value of the tidal cross-sectional area is negligible;

[0150] In this application, the characteristic flow channel cross section involved here is a rectangular cross section by default. In practical applications, the area calculation formula can be specifically defined according to the time and terrain differences.

[0151] Calculate the product of the characteristic flow channel depth value and the corresponding characteristic flow channel width value of the same characteristic flow channel cross section to obtain multiple flow channel cross-sectional area values, and sum the obtained multiple flow channel cross-sectional area values ​​to obtain the flow channel cross-sectional area sum, calculate the ratio of the flow channel cross-sectional area sum to Tj, and obtain the tidal cross-sectional area of ​​the time period;

[0152] The water flow velocity in the tidal power generation channel is monitored in real time by flow velocity monitoring equipment to obtain the real-time water flow velocity of the channel;

[0153] Acquire the start time point of the period corresponding to the tidal real-time power generation period to obtain the first period characteristic time point, and acquire the end time point of the period corresponding to the tidal real-time power generation period to obtain the second period characteristic time point;

[0154] Obtain the seawater density value corresponding to the sample site selection area to obtain the regional seawater density value;

[0155] The tidal resource power generation corresponding to the real-time tidal power generation period is calculated by calculating the real-time water flow velocity of the flow channel, the tidal cross-sectional area of ​​the period, the regional seawater density value, the characteristic time point of the first period, the characteristic time point of the second period, and the power generation efficiency of the tidal energy device;

[0156] The tidal resource power generation corresponding to the real-time tidal power generation period is calculated using the following formula:

[0157]

[0158] Among them, Cxl is the tidal resource power generation corresponding to the real-time tidal power generation period, Zxl is the power generation efficiency of the tidal energy device, ρ h is the seawater density value, Jsm is the tidal cross-sectional area of ​​the period, Vls is the real-time water velocity of the channel, t1 is the characteristic time point of the first period, and t2 is the characteristic time point of the second period;

[0159] It should be noted here that:

[0160] In the specific implementation, in the process of calculating the power generation of tidal resources, the following test data are available:

[0161] It is known that the power generation efficiency Zxl of the tidal energy device is 30%, and the cross-sectional area of ​​the tidal current Jsm is 3000m 2 , seawater density value ρ h 1025kg / m 3 The real-time flow velocity of the channel during the tidal power generation period is integrated and calculated to be 19531.25m 3 / s 3 , it can be calculated that the tidal resource power generation Cxl is 50277.78kWh.

[0162] Based on the tidal resource power generation corresponding to the real-time tidal power generation period, a comprehensive power generation evaluation and calculation is performed on the sample candidate site area to obtain the tidal energy estimated power generation deviation corresponding to the sample candidate site area;

[0163] Obtain the historical tidal records corresponding to the sample area to be sited, select La historical tidal periods from the historical tidal records, repeat the process of obtaining the tidal resource power generation corresponding to the real-time tidal power generation period, obtain the tidal resource power generation corresponding to each historical tidal period respectively, and calculate the average value of the multiple tidal resource power generation obtained to obtain the average tidal resource power generation corresponding to the sample area to be sited;

[0164] It should be noted here that:

[0165] The La involved here is the quantitative value corresponding to the historical tidal period, and La is an integer greater than 0.

[0166] Acquire multiple completed tidal power stations in the ocean energy site selection area to obtain multiple sample tidal power stations, obtain the average tidal resource power generation corresponding to each tidal power station, and compare the numerical values ​​of the multiple tidal resource power generation averages obtained, and mark the tidal resource power generation average with the smallest value as the site selection benchmark power generation;

[0167] Calculate the difference between the average tidal resource power generation corresponding to the sample candidate site area and the site selection benchmark power generation to obtain the tidal energy estimated power generation deviation corresponding to the sample candidate site area;

[0168] It should be noted here that:

[0169] In this application, the sample tidal power stations involved here are all profitable tidal power stations;

[0170] Repeat the process of obtaining the deviation of the estimated tidal energy power generation corresponding to the sample candidate site selection area, obtain the deviation of the estimated tidal energy power generation corresponding to each candidate site selection area, and obtain tidal energy resource monitoring data;

[0171] The tidal monitoring module acquires tidal energy resource monitoring data and transmits it to the energy analysis module and the comprehensive site selection module;

[0172] The energy analysis module screens the tidal resource development areas in the selected areas based on the tidal energy resource monitoring data, analyzes the wave energy indicators in the non-tidal resource development areas, and obtains regional energy analysis data based on the analysis results;

[0173] Obtaining tidal energy resource monitoring data, and obtaining the tidal energy estimated power generation deviation corresponding to each area to be sited based on the tidal energy resource monitoring data;

[0174] According to the deviation of the estimated tidal energy power generation corresponding to each candidate site, the candidate site is divided into a tidal resource development area and a non-tidal energy resource development area to obtain tidal energy resource screening data;

[0175] The details are as follows:

[0176] If the deviation of the estimated tidal energy power generation is greater than or equal to 0, the corresponding area to be selected will be divided into a tidal resource development area;

[0177] If the deviation of the estimated tidal energy power generation is less than 0, the corresponding area to be selected will be classified as a non-tidal resource development area;

[0178] In the process of monitoring wave energy indicators in non-tidal energy resource development areas, a regional wave monitoring period is set by taking the current corresponding time value as the end time point of the period, and the duration of the regional wave monitoring period is obtained to obtain the wave monitoring duration;

[0179] A regional wave marker line is set in the non-tidal energy resource development area, and waves passing through the regional wave marker line during the regional wave monitoring period are collected. The collected waves are counted to obtain the number of wave occurrences in the period, and the ratio of the number of wave occurrences in the period to the wave monitoring duration is calculated to obtain the wave occurrence frequency in the period.

[0180] A time period sample wave is selected from the waves collected during the regional wave monitoring period, time period image data is collected for the time period sample wave to obtain a wave video image, and the wave video image is intercepted frame by frame, and the height value of the time period sample wave in each frame of the video image is obtained to obtain multiple wave height values, and the obtained multiple wave height values ​​are compared in numerical value, and the difference between the maximum value wave height and the minimum value wave height is calculated to obtain the time period wave height difference corresponding to the time period sample wave;

[0181] Repeat the process of obtaining the wave height difference of the time period corresponding to the sample wave of the time period, obtain the wave height difference of the time period corresponding to each collected wave, and calculate the average thereof to obtain the wave monitoring height difference of the time period;

[0182] The product of the wave monitoring height difference during the calculation period and the wave occurrence frequency during the period is calculated to obtain the wave energy index value corresponding to the regional wave monitoring period;

[0183] According to the wave energy index value of the period corresponding to the regional wave monitoring period, a comprehensive wave energy index analysis is conducted on the non-tidal energy resource development area to obtain the wave energy index deviation corresponding to the non-tidal energy resource development area;

[0184] The details are as follows:

[0185] Obtaining historical tidal records corresponding to the non-tidal energy resource development area, selecting multiple historical wave monitoring periods in the historical tidal records, repeating the process of obtaining wave energy index values ​​for the time periods corresponding to the regional wave monitoring periods, respectively obtaining wave energy index values ​​for the time periods corresponding to each historical wave monitoring period, and calculating the average value of the wave energy index values ​​for the multiple time periods obtained to obtain the mean wave energy index corresponding to the non-tidal energy resource development area;

[0186] Acquire multiple completed wave energy power stations in the ocean energy site selection area to obtain multiple sample wave energy power stations, obtain the wave energy index value of each time period corresponding to each sample wave energy power station, compare the values ​​of the multiple obtained wave energy index values ​​of the time period, mark the wave energy index value of the time period with the smallest value as the wave energy benchmark index value, calculate the difference between the wave energy index mean and the wave energy benchmark index value, and obtain the wave energy index deviation;

[0187] It should be noted here that:

[0188] In this application, the wave energy power stations involved here are all wave energy power stations that have achieved profitability.

[0189] Obtain the wave energy index deviation corresponding to each non-tidal energy resource development area respectively, and define the multiple wave energy index deviations and tidal energy resource screening data as regional energy analysis data;

[0190] The energy analysis module acquires regional energy analysis data and transmits it to the comprehensive site selection module;

[0191] The comprehensive site selection module selects a site for ocean energy resource development in each area to be sited based on regional energy analysis data;

[0192] The details are as follows:

[0193] Obtain regional energy analysis data, and obtain tidal energy resource screening data and multiple wave energy index deviations based on the regional energy analysis data;

[0194] According to the tidal energy resource screening data, the tidal resource development area and the non-tidal energy development area are obtained respectively;

[0195] If the area to be sited is a tidal resource development area, it will be set as a marine tidal energy site selection area and tidal energy resource development will be carried out there;

[0196] If the area to be sited is a non-tidal resource development area, further site selection analysis will be conducted;

[0197] The details are as follows:

[0198] Obtaining the wave energy index deviation corresponding to each non-tidal resource development area according to the multiple wave energy index deviations;

[0199] If the wave energy index deviation corresponding to the non-tidal resource development area is greater than or equal to 0, it will be set as the ocean wave energy site selection area and wave energy resource development will be carried out there;

[0200] If the wave energy index deviation corresponding to the non-tidal resource development area is less than 0, it will be set as the ocean temperature difference energy site selection area and temperature difference energy resource development will be carried out there.

[0201] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to specific embodiments. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A multi-source ocean energy site selection method, characterized in that: include: Step S1: real-time tidal energy index monitoring is performed on the area to be selected, the monitoring results are combined with the historical data of tidal energy indicators, and a comprehensive analysis is performed to obtain the deviation of the tidal energy estimated power generation corresponding to the area to be selected, thereby obtaining tidal energy resource monitoring data; Step S2: screening the tidal resource development area for the site selection area based on the tidal energy resource monitoring data, analyzing the wave energy index of the non-tidal resource development area, and obtaining regional energy analysis data based on the analysis results; Step S3: Select a site for ocean energy resource development for each area to be selected based on regional energy analysis data.

2. A multi-source ocean energy site selection method according to claim 1, characterized in that: The step S1 further includes the following specific steps: Step S11: acquiring an ocean energy site selection area, dividing the ocean energy site selection area into a plurality of to-be-selected sites, and selecting a sample to-be-selected site selection area from the divided plurality of to-be-selected sites; Step S12: performing real-time tidal energy resource monitoring on the sample area to be sited, and obtaining the tidal resource power generation corresponding to the real-time tidal power generation period according to the monitoring results; Step S13: performing a comprehensive power generation evaluation calculation on the sample candidate site selection area based on the tidal resource power generation corresponding to the real-time tidal power generation period, and obtaining the tidal energy estimated power generation deviation corresponding to the sample candidate site selection area; Step S14: respectively obtaining the tidal energy estimated power generation deviation corresponding to each to-be-selected site area to obtain tidal energy resource monitoring data.

3. A multi-source ocean energy site selection method according to claim 2, characterized in that: The step S12 further includes the following specific steps: Step S121: in the process of monitoring tidal energy resources in the sample area to be selected, marking the current tidal cycle as the tidal real-time power generation period; Step S122: obtaining the comprehensive power generation of the tidal power generators pre-installed in the sample site selection area to obtain the power generation efficiency of the tidal energy device; Step S123: Acquire the effective cross-sectional area of ​​the tidal current during the tidal real-time power generation period to obtain the cross-sectional area of ​​the tidal current during the period; Step S124: monitoring the water flow velocity in the tidal power generation channel in real time by using a flow velocity monitoring device to obtain the real-time water flow velocity of the channel; Step S125: acquiring the start time point of the tidal real-time power generation period to obtain a first period characteristic time point, and acquiring the end time point of the tidal real-time power generation period to obtain a second period characteristic time point; Step S126: obtaining the seawater density value corresponding to the sample site selection area to obtain the regional seawater density value; Step S127: Calculating the tidal resource power generation corresponding to the real-time tidal power generation period by using the real-time water flow velocity of the flow channel, the tidal cross-sectional area of ​​the time period, the regional seawater density value, the characteristic time point of the first time period, the characteristic time point of the second time period, and the power generation efficiency of the tidal energy device; Calculate the tidal resource power generation corresponding to the real-time tidal power generation period.

4. A multi-source ocean energy site selection method according to claim 3, characterized in that: The step S123 further includes the following specific steps: Set Tj characteristic flow channel cross sections in the tidal power generation channel corresponding to the sample site selection area, obtain the flow channel width value of the water area corresponding to each characteristic flow channel cross section at the current moment, and obtain multiple characteristic flow channel width values; Obtaining the flow channel depth value of the water area corresponding to each characteristic flow channel cross section respectively, and obtaining multiple characteristic flow channel depth values; Calculate the product of the characteristic flow channel depth value and the corresponding characteristic flow channel width value of the same characteristic flow channel cross-section to obtain multiple flow channel cross-sectional area values, and sum the multiple flow channel cross-sectional area values ​​obtained to obtain the flow channel cross-sectional area sum, calculate the ratio of the flow channel cross-sectional area sum to Tj, and obtain the time period tidal cross-sectional area.

5. A multi-source ocean energy site selection method according to claim 2, characterized in that: The step S13 further includes the following steps: Obtain the historical tidal records corresponding to the sample area to be sited, select La historical tidal periods from the historical tidal records, obtain the tidal resource power generation corresponding to each historical tidal period, and calculate the average value of the multiple tidal resource power generation obtained to obtain the average tidal resource power generation corresponding to the sample area to be sited; Acquire multiple completed tidal power stations in the ocean energy site selection area to obtain multiple sample tidal power stations, obtain the average tidal resource power generation corresponding to each tidal power station, and compare the numerical values ​​of the multiple tidal resource power generation averages obtained, and mark the tidal resource power generation average with the smallest value as the site selection benchmark power generation; The difference between the average power generation of tidal resources corresponding to the sample site selection area and the site selection benchmark power generation is calculated to obtain the estimated tidal energy power generation deviation corresponding to the sample site selection area.

6. A multi-source ocean energy site selection method according to claim 1, characterized in that: The step S2 further includes the following steps: Step S21: obtaining tidal energy resource monitoring data, and obtaining the tidal energy estimated power generation deviation corresponding to each to-be-selected site area based on the tidal energy resource monitoring data; Step S22: dividing the area to be selected into a tidal resource development area and a non-tidal energy resource development area according to the tidal energy estimated power generation deviation corresponding to each area to be selected, thereby obtaining tidal energy resource screening data; Step S23: in the process of monitoring the wave energy index in the non-tidal energy resource development area, a regional wave monitoring period is set by taking the current corresponding time value as the end time point of the period; Step S24: performing wave index monitoring on the non-tidal energy resource development area in the regional wave monitoring period to obtain the wave energy index value corresponding to the regional wave monitoring period; Step S25: performing a comprehensive wave energy index analysis on the non-tidal energy resource development area according to the wave energy index value of the period corresponding to the regional wave monitoring period, and obtaining the wave energy index deviation corresponding to the non-tidal energy resource development area; Step S26: Obtain the wave energy index deviation corresponding to each non-tidal energy resource development area respectively, and define the multiple wave energy index deviations and tidal energy resource screening data as regional energy analysis data; The step S22 further includes the following steps: If the deviation of the estimated tidal energy power generation is greater than or equal to 0, the corresponding area to be selected will be divided into a tidal resource development area; If the deviation of the estimated tidal energy power generation is less than 0, the corresponding area to be selected will be divided into a non-tidal resource development area.

7. A multi-source ocean energy site selection method according to claim 6, characterized in that: The step S24 further includes the following specific steps: Obtain the duration of the regional wave monitoring period to obtain the wave monitoring duration; A regional wave marker line is set in the non-tidal energy resource development area, and waves passing through the regional wave marker line during the regional wave monitoring period are collected. The collected waves are counted to obtain the number of wave occurrences in the period, and the ratio of the number of wave occurrences in the period to the wave monitoring duration is calculated to obtain the wave occurrence frequency in the period. A time period sample wave is selected from the waves collected during the regional wave monitoring period, time period image data is collected for the time period sample wave to obtain a wave video image, and the wave video image is intercepted frame by frame to obtain the wave height value of the time period sample wave in each frame of the video image to obtain multiple wave height values, and the difference between the maximum value wave height and the minimum value wave height is calculated to obtain the time period wave height difference corresponding to the time period sample wave; Obtain the wave height difference corresponding to each collected wave in each period, and calculate the average to obtain the wave monitoring height difference in the period; The product of the wave monitoring height difference during the calculation period and the frequency of wave occurrence during the period is used to obtain the wave energy index value corresponding to the regional wave monitoring period.

8. A multi-source ocean energy site selection method according to claim 6, characterized in that: The step S25 further includes the following specific steps: Obtaining historical tidal records corresponding to the non-tidal energy resource development area, selecting multiple historical wave monitoring periods in the historical tidal records, repeating the process of obtaining wave energy index values ​​for the time periods corresponding to the regional wave monitoring periods, respectively obtaining wave energy index values ​​for the time periods corresponding to each historical wave monitoring period, and calculating the average value of the wave energy index values ​​for the multiple time periods obtained to obtain the mean wave energy index corresponding to the non-tidal energy resource development area; In the ocean energy site selection area, multiple completed wave energy power stations are obtained to obtain multiple sample wave energy power stations. The wave energy index value of the time period corresponding to each sample wave energy power station is obtained respectively. The wave energy index values ​​of the multiple time periods obtained are compared, and the wave energy index value of the time period with the smallest value is marked as the wave energy benchmark index value. The difference between the wave energy index mean and the wave energy benchmark index value is calculated to obtain the wave energy index deviation.

9. A multi-source ocean energy site selection method according to claim 1, characterized in that: The step S3 further includes the following specific steps: Obtain regional energy analysis data, and obtain tidal energy resource screening data and multiple wave energy index deviations based on the regional energy analysis data; According to the tidal energy resource screening data, the tidal resource development area and the non-tidal energy development area are obtained respectively; If the area to be sited is a tidal resource development area, it will be set as a marine tidal energy site selection area and tidal energy resource development will be carried out there; If the area to be sited is a non-tidal resource development area, further site selection analysis will be conducted; The details are as follows: Obtaining the wave energy index deviation corresponding to each non-tidal resource development area according to the multiple wave energy index deviations; If the wave energy index deviation corresponding to the non-tidal resource development area is greater than or equal to 0, it will be set as the ocean wave energy site selection area and wave energy resource development will be carried out there; If the wave energy index deviation corresponding to the non-tidal resource development area is less than 0, it will be set as the ocean temperature difference energy site selection area and temperature difference energy resource development will be carried out there.

10. A multi-source ocean energy site selection system, applicable to a multi-source ocean energy site selection method according to any one of claims 1 to 9, characterized in that: The site selection system includes: Tidal monitoring module: monitors tidal energy indicators in real time in the area to be selected, combines the monitoring results with historical data of tidal energy indicators, and conducts comprehensive analysis to obtain the deviation of tidal energy estimated power generation corresponding to the area to be selected, thereby obtaining tidal energy resource monitoring data; Energy analysis module: screens the tidal resource development areas for the selected sites based on tidal energy resource monitoring data, analyzes wave energy indicators for non-tidal resource development areas, and obtains regional energy analysis data based on the analysis results; Comprehensive site selection module: select a site for ocean energy resource development in each area to be selected based on regional energy analysis data.

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