A multi-source ocean energy site selection method and system

Abstract

The application discloses a kind of multi-source ocean energy site selection method and system, it is related to electric power energy field, it solves the problem that existing multi-source ocean energy site selection method exists poor site selection effect, including steps S1: real-time tidal energy index monitoring is carried out to the region to be addressed, the monitoring result is combined with tidal energy index historical data, and the tidal energy estimated power generation deviation corresponding to the region to be addressed is obtained by comprehensive analysis, tidal energy resource monitoring data are obtained, step S2: tidal resource development area screening is carried out to the region to be addressed according to tidal energy resource monitoring data, and wave energy index analysis is carried out to non-tidal resource development area, and regional energy analysis data are obtained according to the analysis result, step S3: according to regional energy analysis data, the site selection of each region to be addressed is carried out to marine energy resource development, the comprehensiveness and accuracy of the application can be improved multi-source ocean energy site selection method.

Description

Technical Field

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

[0002] Existing multi-source ocean energy site selection methods have the following specific drawbacks when performing energy site selection:

[0003] 1. Existing multi-source ocean energy site selection methods can only perform regional site selection for a single type of ocean energy resource within a fixed site selection area. They cannot simultaneously select tidal energy resources, wave energy resources, and thermal energy resources, resulting in a single site selection method and insufficient practical application value.

[0004] 2. Existing multi-source ocean energy site selection methods cannot combine real-time tidal energy indicators and historical monitoring results of the site selection area when selecting sites for ocean tidal energy resources, and it is difficult to assess the estimated power generation of tidal energy, 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 this invention is to provide a multi-source ocean energy site selection method and system, which aims to improve the accuracy and comprehensiveness of the multi-source ocean energy site selection method.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a multi-source ocean energy site selection method, comprising the following specific steps:

[0008] Step S1: Monitor the tidal energy index in the area to be selected in real time, combine the monitoring results with historical data of tidal energy index, and comprehensively analyze to obtain the deviation of the estimated power generation of tidal energy in the area to be selected, and obtain tidal energy resource monitoring data.

[0009] Step S2: Based on the tidal energy resource monitoring data, screen the tidal resource development areas of the proposed site, conduct wave energy index analysis on the non-tidal resource development areas, and obtain regional energy analysis data based on the analysis results;

[0010] Step S3: Select marine energy resource development sites for each candidate site based on regional energy analysis data.

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

[0012] Step S11: Obtain the marine energy site selection area, divide the marine energy site selection area into several candidate site selection areas, and select a sample candidate site selection area from the several candidate site selection areas.

[0013] Step S12: Conduct real-time tidal energy resource monitoring of the sample site selection area, and obtain the tidal power generation corresponding to the real-time tidal power generation period based on the monitoring results;

[0014] Step S13: Calculate the comprehensive power generation of the sample site selection area based on the tidal resource power generation corresponding to the real-time tidal power generation period, and obtain the deviation of the tidal energy estimated power generation corresponding to the sample site selection area.

[0015] Step S14: Obtain the tidal energy estimated power generation deviation for each candidate site area to obtain tidal energy resource monitoring data.

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

[0017] Step S121: During the process of monitoring tidal energy resources in the sample site selection area, the current tidal cycle is marked as the real-time tidal power generation period.

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

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

[0020] Step S124: The water flow velocity in the tidal current channel is monitored in real time using a flow velocity monitoring device to obtain the real-time water flow velocity in the channel;

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

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

[0023] Step S127: Calculate the tidal resource power generation corresponding to the real-time tidal power generation period by taking the real-time water flow velocity of the 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] The power generation of tidal resources corresponding to the real-time tidal power generation period is calculated.

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

[0026] Tj characteristic channel cross sections are set in the tidal current channel corresponding to the sample site selection area. The channel width value of the water area corresponding to each characteristic channel cross section at the current time is obtained to obtain multiple characteristic channel width values.

[0027] The channel depth values ​​of the water area corresponding to each characteristic channel cross section are obtained to obtain multiple characteristic channel depth values;

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

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

[0030] Obtain the historical tidal records corresponding to the sample site selection area. 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. Calculate the average value of the obtained multiple tidal resource power generation to obtain the average tidal resource power generation corresponding to the sample site selection area.

[0031] Multiple completed tidal power plants were identified in the marine energy site selection area to obtain multiple sample tidal power plants. The average tidal power generation corresponding to each tidal power plant was obtained, and the values ​​of the multiple average tidal power generation were compared. The average tidal power generation with the smallest value was marked as the site selection benchmark power generation.

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

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

[0034] Step S21: Obtain tidal energy resource monitoring data, and obtain the tidal energy estimated power generation deviation for each candidate site area based on the tidal energy resource monitoring data;

[0035] Step S22: Divide the candidate site areas into tidal resource development areas and non-tidal energy resource development areas according to the deviation of the tidal energy power generation corresponding to each candidate site area, and obtain tidal energy resource screening data.

[0036] Step S23: During the monitoring of wave energy indicators in non-tidal energy resource development areas, the current corresponding time value is used as the end time point to set a regional wave monitoring period.

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

[0038] Step S25: Based on the wave energy index values ​​corresponding to the time period of regional wave monitoring, conduct a comprehensive wave energy index analysis on the non-tidal energy resource development area to obtain the wave energy index deviation corresponding to the non-tidal energy resource development area.

[0039] Step S26: Obtain the wave energy index deviation corresponding to each non-tidal energy resource development area, and define the multiple wave energy index deviations and tidal energy resource screening data as regional energy analysis data.

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

[0041] The duration of wave monitoring in the region is obtained by acquiring the wave monitoring duration.

[0042] A regional wave marker line is set up for non-tidal energy resource development areas. Waves that pass through the regional wave marker line during the regional wave monitoring period are collected, and the number of waves collected is counted to obtain the number of waves occurring during the period. The ratio of the number of waves occurring during the period to the wave monitoring duration is calculated to obtain the wave occurrence frequency during the period.

[0043] Select a time-period sample wave from the waves collected during the regional wave monitoring period, collect time-period image data of the time-period sample wave to obtain wave video images, and capture the wave video images frame by frame to obtain the height value of the time-period sample wave in each frame of the video image, obtaining multiple wave height values, and comparing the values ​​of the multiple wave height values ​​to calculate the difference between the maximum and minimum wave height values, thus obtaining the time-period wave height difference corresponding to the time-period sample wave.

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

[0045] The wave energy index value corresponding to the wave monitoring period is obtained by multiplying the wave monitoring elevation difference of the time period by the frequency of wave occurrence.

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

[0047] Historical tidal records corresponding to non-tidal energy resource development areas are obtained. Multiple historical wave monitoring periods are selected from the historical tidal records. The process of obtaining the wave energy index value corresponding to the wave monitoring period of the area is repeated. The wave energy index value corresponding to each historical wave monitoring period is obtained. The average value of the obtained wave energy index values ​​of multiple periods is calculated to obtain the average value of the wave energy index corresponding to non-tidal energy resource development areas.

[0048] Multiple completed wave energy power stations were identified in the marine energy site selection area to obtain multiple sample wave energy power stations. Wave energy index values ​​for each time period corresponding to each sample wave energy power station were obtained, and the values ​​of the multiple time period wave energy index values ​​were compared. The wave energy index value with the smallest value was marked as the wave energy benchmark index value. The difference between the mean wave energy index value and the wave energy benchmark index value was calculated to obtain the wave energy index deviation.

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

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

[0051] Based on the tidal energy resource screening data, the tidal energy development areas and non-tidal energy development areas were obtained separately;

[0052] If the area to be selected is a tidal resource development area, then it will be designated as a marine tidal energy site selection area and tidal energy resources will be developed there.

[0053] If the area to be selected is not a tidal resource development area, then further site selection analysis should be conducted.

[0054] Specifically as follows:

[0055] The wave energy index deviation for each non-tidal resource development area is obtained based on the deviation of multiple wave energy indices.

[0056] If the deviation of the wave energy index corresponding to a non-tidal resource development area is greater than or equal to 0, then it is set as a marine wave energy site selection area and wave energy resources are developed there.

[0057] If the wave energy index deviation of a non-tidal resource development area is less than 0, it is designated as a marine thermal energy site selection area and its thermal energy resources are developed.

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

[0059] Tidal monitoring module: Real-time monitoring of tidal energy indicators in the site selection area, combining the monitoring results with historical data of tidal energy indicators, and comprehensively analyzing to obtain the deviation of the estimated power generation of tidal energy in the site selection area, thus obtaining tidal energy resource monitoring data.

[0060] Energy Analysis Module: Based on tidal energy resource monitoring data, the module screens tidal resource development areas for the proposed site, analyzes wave energy indicators for non-tidal resource development areas, and obtains regional energy analysis data based on the analysis results.

[0061] Integrated Site Selection Module: Based on regional energy analysis data, this module selects sites for marine energy resource development in each potential site area.

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

[0063] 1. This invention simultaneously selects sites for tidal energy resources, wave energy resources, and thermal energy resources in the area to be selected, which can effectively improve the comprehensiveness of the site selection method and thus ensure the practical application value of the site selection method.

[0064] 2. When selecting sites for marine tidal energy resources, this invention can combine the historical monitoring results of real-time tidal energy indicators of the proposed site area and evaluate the estimated power generation of tidal energy, thereby improving the accuracy of the site selection results.

[0065] 3. When assessing tidal energy resources, this invention first monitors the tidal energy resources of the sample site area in real time to obtain relevant data during the real-time tidal power generation period, such as the power generation efficiency of the tidal energy device, the cross-sectional area of ​​the tidal current during the period, and the real-time water flow velocity in the channel. Combined with historical tidal records, the average power generation of tidal resources is calculated, and the deviation of the estimated power generation of tidal energy is obtained. By combining real-time monitoring data with historical data, the tidal energy resource potential of the site area can be assessed more accurately, and the site selection error caused by single or inaccurate data can be reduced.

[0066] 4. When assessing wave energy resources, this invention sets regional wave monitoring periods, collects the number of waves passing through regional wave marker lines, calculates the frequency of wave occurrence during each period, and simultaneously collects and analyzes video images of wave samples during each period to calculate the wave monitoring elevation difference during each period. This allows for the determination of wave energy index values ​​corresponding to the regional wave monitoring periods, which can more accurately reflect the wave energy resource status of the proposed site and improve the accuracy of the site selection process. Attached Figure Description

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

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

[0069] Figure 2 This is an overall system block diagram of the present invention. Detailed Implementation

[0070] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0071] Example 1

[0072] Please see Figure 1 This invention provides a technical solution: a multi-source ocean energy site selection method, comprising the following specific steps:

[0073] Step S1: Monitor the tidal energy index in the area to be selected in real time, combine the monitoring results with historical data of tidal energy index, and comprehensively analyze to obtain the deviation of the estimated power generation of tidal energy in the area to be selected, and obtain tidal energy resource monitoring data.

[0074] Step S1 further includes the following specific steps:

[0075] Step S11: Obtain the marine energy site selection area, divide the marine energy site selection area into several candidate site selection areas, and select a sample candidate site selection area from the several candidate site selection areas.

[0076] Step S12: Conduct real-time tidal energy resource monitoring of the sample site selection area, and obtain the tidal power generation corresponding to the real-time tidal power generation period based on the monitoring results;

[0077] Step S12 further includes the following specific steps:

[0078] Step S121: During the process of monitoring tidal energy resources in the sample site selection area, the current tidal cycle is marked as the real-time tidal power generation period.

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

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

[0081] Step S123 further includes the following specific steps:

[0082] Tj characteristic channel cross sections are set in the tidal current channel corresponding to the sample site selection area. The channel width value of the water area corresponding to each characteristic channel cross section at the current time is obtained to obtain multiple characteristic channel width values.

[0083] The channel depth values ​​of the water area corresponding to each characteristic channel cross section are obtained to obtain multiple characteristic channel depth values;

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

[0085] Step S124: The water flow velocity in the tidal current channel is monitored in real time using a flow velocity monitoring device to obtain the real-time water flow velocity in the channel;

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

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

[0088] Step S127: Calculate the tidal resource power generation corresponding to the real-time tidal power generation period by taking the real-time water flow velocity of the 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 specific formula for calculating the tidal power generation corresponding to the real-time tidal power generation period is as follows:

[0090]

[0091] Where Cxl represents the tidal power generation corresponding to the real-time tidal power generation period, Zxl represents the power generation efficiency of the tidal energy device, and ρ h Here, Jsm is the cross-sectional area of ​​the tidal current during the time period, Vls is the real-time water flow velocity in the channel, t1 is the characteristic time point of the first time period, and t2 is the characteristic time point of the second time period.

[0092] Step S13: Calculate the comprehensive power generation of the sample site selection area based on the tidal resource power generation corresponding to the real-time tidal power generation period, and obtain the deviation of the tidal energy estimated power generation corresponding to the sample site selection area.

[0093] Step S13 further includes the following steps:

[0094] Obtain the historical tidal records corresponding to the sample site selection area. 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. Calculate the average value of the obtained multiple tidal resource power generation to obtain the average tidal resource power generation corresponding to the sample site selection area.

[0095] Multiple completed tidal power plants were identified in the marine energy site selection area to obtain multiple sample tidal power plants. The average tidal power generation corresponding to each tidal power plant was obtained, and the values ​​of the multiple average tidal power generation were compared. The average tidal power generation with the smallest value was marked as the site selection benchmark power generation.

[0096] The difference between the average tidal power generation of the sample site selection area and the site selection benchmark power generation is calculated to obtain the deviation of the estimated tidal power generation of the sample site selection area.

[0097] Step S14: Obtain the tidal energy estimated power generation deviation for each candidate site area to obtain tidal energy resource monitoring data;

[0098] Step S2: Based on the tidal energy resource monitoring data, screen the tidal resource development areas of the proposed site, conduct wave energy index analysis on the non-tidal resource development areas, and obtain regional energy analysis data based on the analysis results;

[0099] Step S2 further includes the following steps:

[0100] Step S21: Obtain tidal energy resource monitoring data, and obtain the tidal energy estimated power generation deviation for each candidate site area based on the tidal energy resource monitoring data;

[0101] Step S22: Divide the candidate site areas into tidal resource development areas and non-tidal energy resource development areas according to the deviation of the tidal energy power generation corresponding to each candidate site area, and obtain tidal energy resource screening data.

[0102] Step S22 further includes the following steps:

[0103] If the estimated power generation deviation of tidal energy is greater than or equal to 0, the corresponding site selection area will be designated as a tidal resource development area.

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

[0105] Step S23: During the monitoring of wave energy indicators in non-tidal energy resource development areas, the current corresponding time value is used as the end time point to set a regional wave monitoring period.

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

[0107] Step S24 further includes the following specific steps:

[0108] The duration of wave monitoring in the region is obtained by acquiring the wave monitoring duration.

[0109] A regional wave marker line is set up for non-tidal energy resource development areas. Waves that pass through the regional wave marker line during the regional wave monitoring period are collected, and the number of waves collected is counted to obtain the number of waves occurring during the period. The ratio of the number of waves occurring during the period to the wave monitoring duration is calculated to obtain the wave occurrence frequency during the period.

[0110] Select a time-period sample wave from the waves collected during the regional wave monitoring period, collect time-period image data of the time-period sample wave to obtain wave video images, and capture the wave video images frame by frame to obtain the height value of the time-period sample wave in each frame of the video image, obtaining multiple wave height values, and comparing the values ​​of the multiple wave height values ​​to calculate the difference between the maximum and minimum wave height values, thus obtaining the time-period wave height difference corresponding to the time-period sample wave.

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

[0112] The wave energy index value corresponding to the wave monitoring period is obtained by multiplying the wave monitoring elevation difference during the time period by the frequency of wave occurrence during the time period.

[0113] Step S25: Based on the wave energy index values ​​corresponding to the time period of regional wave monitoring, conduct a comprehensive wave energy index analysis on the non-tidal energy resource development area to obtain the wave energy index deviation corresponding to the non-tidal energy resource development area.

[0114] Step S25 further includes the following specific steps:

[0115] Historical tidal records corresponding to non-tidal energy resource development areas are obtained. Multiple historical wave monitoring periods are selected from the historical tidal records. The process of obtaining the wave energy index value corresponding to the wave monitoring period of the area is repeated. The wave energy index value corresponding to each historical wave monitoring period is obtained. The average value of the obtained wave energy index values ​​of multiple periods is calculated to obtain the average value of the wave energy index corresponding to non-tidal energy resource development areas.

[0116] Multiple completed wave energy power stations were identified in the marine energy site selection area to obtain multiple sample wave energy power stations. Wave energy index values ​​for each time period corresponding to each sample wave energy power station were obtained, and the values ​​of the multiple time period wave energy index values ​​were compared. The wave energy index value with the smallest value was marked as the wave energy benchmark index value. The difference between the mean wave energy index value and the wave energy benchmark index value was calculated to obtain the wave energy index deviation.

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

[0118] Step S3: Select marine energy resource development sites for each candidate site based on regional energy analysis data;

[0119] Step S3 further includes the following specific steps:

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

[0121] Based on the tidal energy resource screening data, the tidal energy development areas and non-tidal energy development areas were obtained separately;

[0122] If the area to be selected is a tidal resource development area, then it will be designated as a marine tidal energy site selection area and tidal energy resources will be developed there.

[0123] If the area to be selected is not a tidal resource development area, then further site selection analysis should be conducted.

[0124] Specifically as follows:

[0125] The wave energy index deviation for each non-tidal resource development area is obtained based on the deviation of multiple wave energy indices.

[0126] If the deviation of the wave energy index corresponding to a non-tidal resource development area is greater than or equal to 0, then it is set as a marine wave energy site selection area and wave energy resources are developed there.

[0127] If the wave energy index deviation of a non-tidal resource development area is less than 0, it is designated as a marine thermal energy site selection area and its thermal energy resources are developed.

[0128] In this application, if a corresponding calculation formula appears, the above calculation formula is a dimensionless calculation. The weighting coefficient, proportional coefficient and other coefficients in the formula are set to quantify each parameter to obtain a result value. The size of the weighting coefficient and proportional coefficient is only required to not affect the proportional relationship between the parameter and the result value.

[0129] Example 2

[0130] Please see Figure 2 Based on another concept of the same invention, a multi-source ocean energy site selection system is proposed, including a tidal monitoring module, an energy analysis module, an integrated site selection module, and a server. The tidal monitoring module, the energy analysis module, and the integrated site selection module are respectively connected to the server, and the server controls the tidal monitoring module, the energy analysis module, and the integrated 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 historical data of tidal energy indicators, and comprehensively analyzes the deviation of the estimated tidal energy power generation corresponding to the site selection area to obtain tidal energy resource monitoring data.

[0132] Specifically as follows:

[0133] The marine energy site selection area is acquired and divided into several candidate site selection areas. A sample candidate site selection area is then selected from the several candidate site selection areas.

[0134] It should be noted here that:

[0135] In this application, the marine energy site selection area referred to herein is a body of water that meets the objective conditions for the development of marine thermal energy resources. The objective conditions referred to herein 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 specifically includes tidal energy, wave energy and thermal energy conversion, and the corresponding site selection area can be used for ocean energy resource development, including tidal energy development, wave energy development and thermal energy conversion.

[0137] Real-time tidal energy resource monitoring is conducted in the sample site selection area, and the tidal power generation corresponding to the real-time tidal power generation period is obtained based on the monitoring results;

[0138] Specifically as follows:

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

[0140] The comprehensive power generation of the tidal generator sets pre-installed in the sample site selection area is obtained to obtain the power generation efficiency of the tidal energy device.

[0141] It should be noted here that:

[0142] In this application, the total power generation capacity 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] The effective cross-sectional area of ​​the tidal current during the real-time tidal power generation period is obtained to obtain the tidal current cross-sectional area for that period.

[0144] Specifically as follows:

[0145] Tj characteristic channel cross sections are set in the tidal current channel corresponding to the sample site selection area. The channel width value of the water area corresponding to each characteristic channel cross section at the current time is obtained to obtain multiple characteristic channel width values.

[0146] The channel depth values ​​of the water area corresponding to each characteristic channel cross section are obtained to obtain multiple characteristic channel depth values;

[0147] It should be noted here that:

[0148] In this application, Tj refers to the quantity value corresponding to the cross-section of the characteristic flow channel, 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 value of the tidal current cross section area is ignored;

[0150] In this application, the characteristic flow channel cross section is assumed to be a rectangular cross section. In practical applications, the area calculation formula can be specifically limited according to the differences in terrain over time.

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

[0152] The real-time water flow velocity in the tidal current channel is obtained by using flow velocity monitoring equipment.

[0153] The start time of the period corresponding to the real-time tidal power generation period is obtained to obtain the first period characteristic time point, and the end time of the period corresponding to the real-time tidal power generation period is obtained to obtain the second period characteristic time point.

[0154] The seawater density values ​​corresponding to the sample site selection area are obtained to obtain the regional seawater density values;

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

[0156] The specific formula for calculating the tidal power generation corresponding to the real-time tidal power generation period is as follows:

[0157]

[0158] Where Cxl represents the tidal power generation corresponding to the real-time tidal power generation period, Zxl represents the power generation efficiency of the tidal energy device, and ρ h Here, Jsm is the cross-sectional area of ​​the tidal current during the time period, Vls is the real-time water flow velocity in the channel, t1 is the characteristic time point of the first time period, and t2 is the characteristic time point of the second time period.

[0159] It should be noted here that:

[0160] In the specific implementation, the following test data exists during the calculation of tidal power generation:

[0161] Given that the power generation efficiency Zxl of the tidal energy device is 30%, and the tidal current cross-sectional area Jsm is 3000m²,... 2 Seawater density value ρ h 1025 kg / m 3 The integral calculation of the real-time water flow velocity in the channel during the real-time tidal power generation period yielded a value of 19531.25 m. 3 / s 3 Therefore, the tidal power generation Cxl can be calculated to be 50277.78 kWh.

[0162] Based on the tidal resource power generation corresponding to the real-time tidal power generation period, a comprehensive power generation assessment calculation is performed on the sample site selection area to obtain the deviation of the tidal energy estimated power generation corresponding to the sample site selection area.

[0163] Obtain the historical tidal records corresponding to the sample site selection area. 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. Calculate the average value of the obtained multiple tidal resource power generation to obtain the average tidal resource power generation corresponding to the sample site selection area.

[0164] It should be noted here that:

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

[0166] Multiple completed tidal power plants were identified in the marine energy site selection area to obtain multiple sample tidal power plants. The average tidal power generation corresponding to each tidal power plant was obtained, and the values ​​of the multiple average tidal power generation were compared. The average tidal power generation with the smallest value was marked as the site selection benchmark power generation.

[0167] The difference between the average tidal power generation of the sample site selection area and the site selection benchmark power generation is calculated to obtain the deviation of the estimated tidal power generation of the sample site selection area.

[0168] It should be noted here that:

[0169] In this application, all sample tidal power plants mentioned herein are profitable tidal power plants;

[0170] Repeat the process of obtaining the deviation of the tidal energy power generation forecast for each candidate site area, and obtain the deviation of the tidal energy power generation forecast for each candidate site area to 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 integrated site selection module;

[0172] The energy analysis module screens tidal resource development areas based on tidal energy resource monitoring data, performs wave energy index analysis on non-tidal resource development areas, and obtains regional energy analysis data based on the analysis results.

[0173] Acquire tidal energy resource monitoring data, and based on the tidal energy resource monitoring data, obtain the deviation of the estimated tidal energy power generation for each candidate site area;

[0174] Based on the deviation of the estimated tidal power generation corresponding to each candidate site area, the candidate site areas are divided into tidal resource development areas and non-tidal energy resource development areas to obtain tidal energy resource screening data.

[0175] Specifically as follows:

[0176] If the estimated power generation deviation of tidal energy is greater than or equal to 0, the corresponding site selection area will be designated as a tidal resource development area.

[0177] If the estimated power generation deviation of tidal energy is less than 0, the corresponding site selection area 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, the current corresponding time value is used as the end time point to set a regional wave monitoring period, and the duration of the regional wave monitoring period is obtained.

[0179] A regional wave marker line is set up for non-tidal energy resource development areas. Waves that pass through the regional wave marker line during the regional wave monitoring period are collected, and the number of waves collected is counted to obtain the number of waves occurring during the period. The ratio of the number of waves occurring during the period to the wave monitoring duration is calculated to obtain the wave occurrence frequency during the period.

[0180] Select a time-period sample wave from the waves collected during the regional wave monitoring period, collect time-period image data of the time-period sample wave to obtain wave video images, and capture the wave video images frame by frame to obtain the height value of the time-period sample wave in each frame of the video image, obtaining multiple wave height values, and comparing the values ​​of the multiple wave height values ​​to calculate the difference between the maximum and minimum wave height values, thus obtaining the time-period wave height difference corresponding to the time-period sample wave.

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

[0182] The wave energy index value corresponding to the wave monitoring period is obtained by multiplying the wave monitoring elevation difference during the time period by the frequency of wave occurrence during the time period.

[0183] Based on the wave energy index values ​​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] Specifically as follows:

[0185] Historical tidal records corresponding to non-tidal energy resource development areas are obtained. Multiple historical wave monitoring periods are selected from the historical tidal records. The process of obtaining the wave energy index value corresponding to the wave monitoring period of the area is repeated. The wave energy index value corresponding to each historical wave monitoring period is obtained. The average value of the obtained wave energy index values ​​of multiple periods is calculated to obtain the average value of the wave energy index corresponding to non-tidal energy resource development areas.

[0186] Multiple completed wave energy power stations were identified in the marine energy site selection area to obtain multiple sample wave energy power stations. Wave energy index values ​​for each time period corresponding to each sample wave energy power station were obtained, and the values ​​of the multiple time period wave energy index values ​​were compared. The wave energy index value with the smallest value was marked as the wave energy benchmark index value. The difference between the mean wave energy index value and the wave energy benchmark index value was calculated to obtain the wave energy index deviation.

[0187] It should be noted here that:

[0188] In this application, all wave power plants mentioned herein are profitable wave power plants.

[0189] The wave energy index deviations corresponding to each non-tidal energy resource development area are obtained separately, and the multiple wave energy index deviations and tidal energy resource screening data are defined as regional energy analysis data.

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

[0191] The integrated site selection module selects marine energy resource development sites for each candidate area based on regional energy analysis data.

[0192] Specifically as follows:

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

[0194] Based on the tidal energy resource screening data, the tidal energy development areas and non-tidal energy development areas were obtained separately;

[0195] If the area to be selected is a tidal resource development area, then it will be designated as a marine tidal energy site selection area and tidal energy resources will be developed there.

[0196] If the area to be selected is not a tidal resource development area, then further site selection analysis should be conducted.

[0197] Specifically as follows:

[0198] The wave energy index deviation for each non-tidal resource development area is obtained based on the deviation of multiple wave energy indices.

[0199] If the deviation of the wave energy index corresponding to a non-tidal resource development area is greater than or equal to 0, then it is set as a marine wave energy site selection area and wave energy resources are developed there.

[0200] If the wave energy index deviation of a non-tidal resource development area is less than 0, it is designated as a marine thermal energy site selection area and its thermal energy resources are developed.

[0201] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The 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: Monitor the tidal energy index in the area to be selected in real time, combine the monitoring results with historical data of tidal energy index, and comprehensively analyze to obtain the deviation of the estimated power generation of tidal energy in the area to be selected, and obtain tidal energy resource monitoring data. Step S2: Based on the tidal energy resource monitoring data, screen the tidal resource development areas of the proposed site, conduct wave energy index analysis on the non-tidal resource development areas, and obtain regional energy analysis data based on the analysis results; Step S3: Select marine energy resource development sites for each candidate site based on regional energy analysis data; Step S2 further includes the following steps: Step S21: Obtain tidal energy resource monitoring data, and obtain the tidal energy estimated power generation deviation for each candidate site area based on the tidal energy resource monitoring data; Step S22: Divide the candidate site areas into tidal resource development areas and non-tidal energy resource development areas according to the deviation of the tidal energy power generation corresponding to each candidate site area, and obtain tidal energy resource screening data. Step S23: During the monitoring of wave energy indicators in non-tidal energy resource development areas, the current corresponding time value is used as the end time point to set a regional wave monitoring period. Step S24: Conduct wave index monitoring on non-tidal energy resource development areas during the regional wave monitoring period to obtain the wave energy index value corresponding to the regional wave monitoring period; Step S25: Based on the wave energy index values ​​corresponding to the time period of regional wave monitoring, conduct a comprehensive wave energy index analysis on the non-tidal energy resource development area to obtain 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, and define the multiple wave energy index deviations and tidal energy resource screening data as regional energy analysis data. Step S22 further includes the following steps: If the estimated power generation deviation of tidal energy is greater than or equal to 0, the corresponding site selection area will be designated as a tidal resource development area. If the estimated power generation deviation of tidal energy is less than 0, the corresponding site selection area will be classified as a non-tidal resource development area.

2. The multi-source ocean energy site selection method according to claim 1, characterized in that, Step S1 further includes the following specific steps: Step S11: Obtain the marine energy site selection area, divide the marine energy site selection area into several candidate site selection areas, and select a sample candidate site selection area from the several candidate site selection areas. Step S12: Conduct real-time tidal energy resource monitoring of the sample site selection area, and obtain the tidal power generation corresponding to the real-time tidal power generation period based on the monitoring results; Step S13: Calculate the comprehensive power generation of the sample site selection area based on the tidal resource power generation corresponding to the real-time tidal power generation period, and obtain the deviation of the tidal energy estimated power generation corresponding to the sample site selection area. Step S14: Obtain the tidal energy estimated power generation deviation for each candidate site area to obtain tidal energy resource monitoring data.

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

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

5. The multi-source ocean energy site selection method according to claim 2, characterized in that, Step S13 further includes the following steps: Obtain the historical tidal records corresponding to the sample site selection area, 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 obtained multiple tidal resource power generation to obtain the average tidal resource power generation corresponding to the sample site selection area. Multiple completed tidal power plants were identified in the marine energy site selection area to obtain multiple sample tidal power plants. The average tidal power generation corresponding to each tidal power plant was obtained, and the values ​​of the multiple average tidal power generation were compared. The average tidal power generation with the smallest value was marked as the site selection benchmark power generation. The difference between the average tidal power generation of the sample site selection area and the site selection benchmark power generation is calculated to obtain the deviation of the estimated tidal power generation of the sample site selection area.

6. The multi-source ocean energy site selection method according to claim 1, characterized in that, Step S24 further includes the following specific steps: The duration of wave monitoring in the region is obtained by acquiring the wave monitoring duration. A regional wave marker line is set up for non-tidal energy resource development areas. Waves that pass through the regional wave marker line during the regional wave monitoring period are collected, and the number of waves collected is counted to obtain the number of waves occurring during the period. The ratio of the number of waves occurring during the period to the wave monitoring duration is calculated to obtain the wave occurrence frequency during the period. Select a time period sample wave from the waves collected during the regional wave monitoring period, collect time period image data for the time period sample wave to obtain wave video images, and then capture the wave video images frame by frame to obtain the wave height value of the time period sample wave in each frame of the video image, obtaining multiple wave height values. Calculate the difference between the maximum and minimum wave height values ​​to obtain the time period wave height difference corresponding to the time period sample wave. The wave height difference for each time period corresponding to each collected wave is obtained, and the average value is calculated to obtain the wave monitoring height difference for each time period. The wave energy index value corresponding to the wave monitoring period is obtained by multiplying the wave monitoring elevation difference of the time period by the frequency of wave occurrence.

7. The multi-source ocean energy site selection method according to claim 1, characterized in that, Step S25 further includes the following specific steps: Historical tidal records corresponding to non-tidal energy resource development areas are obtained. Multiple historical wave monitoring periods are selected from the historical tidal records. The process of obtaining the wave energy index value corresponding to the wave monitoring period of the area is repeated. The wave energy index value corresponding to each historical wave monitoring period is obtained. The average value of the obtained wave energy index values ​​of multiple periods is calculated to obtain the average value of the wave energy index corresponding to non-tidal energy resource development areas. Multiple completed wave energy power stations were identified in the marine energy site selection area to obtain multiple sample wave energy power stations. Wave energy index values ​​for each time period corresponding to each sample wave energy power station were obtained, and the values ​​of the multiple time period wave energy index values ​​were compared. The wave energy index value with the smallest value was marked as the wave energy benchmark index value. The difference between the mean wave energy index value and the wave energy benchmark index value was calculated to obtain the wave energy index deviation.

8. The multi-source ocean energy site selection method according to claim 1, characterized in that, Step S3 further includes the following specific steps: Acquire regional energy analysis data, and based on the regional energy analysis data, obtain tidal energy resource screening data and deviations of multiple wave energy indicators; Based on the tidal energy resource screening data, the tidal energy development areas and non-tidal energy development areas were obtained separately; If the area to be selected is a tidal resource development area, then it will be designated as a marine tidal energy site selection area and tidal energy resources will be developed there. If the area to be selected is not a tidal resource development area, then further site selection analysis should be conducted. Specifically as follows: The wave energy index deviation for each non-tidal resource development area is obtained based on the deviation of multiple wave energy indices. If the deviation of the wave energy index corresponding to a non-tidal resource development area is greater than or equal to 0, then it is set as a marine wave energy site selection area and wave energy resources are developed there. If the wave energy index deviation of a non-tidal resource development area is less than 0, it is designated as a marine thermal energy site selection area and its thermal energy resources are developed.

9. A multi-source ocean energy site selection system, applicable to the multi-source ocean energy site selection method described in any one of claims 1-8, characterized in that, The location selection system includes: Tidal monitoring module: Real-time monitoring of tidal energy indicators in the site selection area, combining the monitoring results with historical data of tidal energy indicators, and comprehensively analyzing to obtain the deviation of the estimated power generation of tidal energy in the site selection area, thus obtaining tidal energy resource monitoring data. Energy Analysis Module: Based on tidal energy resource monitoring data, the module screens tidal resource development areas for the proposed site, analyzes wave energy indicators for non-tidal resource development areas, and obtains regional energy analysis data based on the analysis results. Integrated Site Selection Module: Based on regional energy analysis data, this module selects sites for marine energy resource development in each potential site area.

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