TWI632516B - Solar irradiance alignment system and the same process - Google Patents

Abstract

A solar radiation ratio comparison system includes a plurality of pyranometers, a plurality of sky image capturing devices, a plurality of temperature sensors, a plurality of data transmitting devices, a data library, and a comparison processing device. A plurality of pyranometers are horizontally arranged to obtain the solar radiation information, and a plurality of sky image capturing devices face the sky to obtain sky image information, and a plurality of temperature sensors sense the surrounding environment to obtain temperature information, and then transmit the solar radiation information and the sky image. Information and temperature information to a plurality of data transfer devices, and then transmitted to the database storage and comparison processing device, the comparison processing device calculates the comparison solar radiation information, and compares the solar radiation information and the comparison solar radiation amount The information is corrected for solar radiation information, and the present invention can be combined with a solar power generation device to estimate the amount of power generation.

Description

Insolation ratio system and method

The present invention relates to a system and method for measuring the amount of solar radiation that is calibrated by comparing the amount of solar radiation.

In general, the amount of solar power generated is proportional to the amount of solar radiation. However, the amount of solar radiation is affected by substances in the air, such as clouds and impurities. Therefore, solar power is usually an intermittent and time-varying energy source, which cannot provide stability. Source of electricity. If it is injected into the power grid without predicting the possible power generation in advance, it will easily cause instability of the power system, and it is not easy to effectively perform power dispatching, and also increase operational investment and operating costs. Therefore, it is necessary to predict the amount of solar power generated in the region.

However, most solar power installations do not have a pyranometer, because the pyranometer may age or malfunction, resulting in deviations in the observations. The user is required to bring a calibration instrument to the field to correct the pyranometer, and the location of the pyrometer is often located at a high position. Correcting the pyranometer is quite difficult for the user, and how to solve the aforementioned signing point becomes a problem to be solved.

In view of the foregoing, the inventors of the present invention have conceived and designed a solar radiation ratio comparison system and method in order to improve the lack of the prior art, thereby enhancing the implementation and utilization of the industry.

In view of the above-mentioned problems, it is an object of the present invention to provide a solar radiation ratio comparison system and method for solving the problems faced by the prior art.

Based on the above objects, the present invention provides a solar radiation ratio comparison system including a plurality of solar radiation meters, a plurality of sky image capturing devices, a plurality of data transmitting devices, a data library, and a comparison processing device. A plurality of pyranometers are horizontally arranged to measure the solar radiation of the sun and integrated into the solar radiation information; a plurality of sky image capturing devices respectively face the sky to collect sky images and integrate into sky image information; a plurality of data transmission devices are connected to each The sunburst meter and the sky image capturing device are used to obtain the solar radiation information and the sky image information; the data base is wirelessly connected or wired to connect a plurality of data transmission devices to store the solar radiation information and the sky image information, and integrate into the reference information; A plurality of data transmission devices are connected to the processing device to obtain the solar radiation information and the sky image information, and then the sky image information and the position of the sun and the position information of the plurality of pyranometers are analyzed, thereby calculating the comparison solar radiation information and transmitting the ratio information. Correcting the solar radiation information for the solar radiation information and the comparison of the solar radiation information, without the need for the user to bring the calibration instrument to the field to correct the solar radiation meter, eliminating the trouble of correction and increasing the convenience.

Preferably, each of the pyranometers is a sun-tracking sundial or a sunburst with an inclination, and the position information includes the latitude and longitude, height, inclination of each pyrometer, and the time point of the current measurement.

Preferably, the comparison processing device analyzes the sky image information through the image processing technology, thereby obtaining the cloud distribution state of the sky and knowing the extent to which the sun is blocked by the cloud layer.

Preferably, the method further includes a plurality of temperature sensors respectively sensing the ambient environment to measure the temperature values and integrating the temperature information, and connecting the data transmission devices to transmit the temperature information to the database and the comparison processing device, and the temperature information is Incorporate the content of the reference information.

Preferably, the solar radiation ratio comparison system further comprises a solar power generation device, and the solar power generation device has an estimation unit, and the estimation unit estimates the power generation amount of the solar power generation device according to the solar radiation quantity information, thereby smoothly estimating the need to be scheduled from the power grid. Electricity.

Preferably, the method further comprises a plurality of weather detecting devices, each of the weather detecting devices detecting the wind speed and weather of the surrounding environment, integrating the wind information and the weather information, and connecting the plurality of data transmitting devices to transmit the wind information and the weather. Information to the database and comparison device.

A method of solar radiation quantity comparison, comprising: (1) setting a plurality of pyranometers horizontally to measure a plurality of solar radiation quantities of the sun, and integrating them into solar radiation quantity information. (2) Set a plurality of sky image capturing devices to face the sky to collect a plurality of sky images and integrate them into sky image information. (3) Obtaining solar radiation information and sky image information by using a plurality of data transmission devices, and transmitting the solar radiation information and the sky image information to the data base and the comparison processing device through wired communication or wireless communication. (4) Store and integrate the solar radiation information and sky image information as reference information to the database. (5) Using the comparison processing device to analyze the sky image information, and matching the position information of the sun position and the plurality of pyranometers, thereby calculating the comparison solar radiation quantity information, and then correcting by comparing the solar radiation quantity information and the comparison solar radiation quantity information. Insolation information.

Preferably, the image processing technology of the comparison processing device is further used to analyze the sky image information, thereby obtaining the cloud distribution state of the sky and knowing the extent to which the sun is blocked by the cloud layer.

Preferably, the method further includes setting a plurality of temperature sensors to sense the surrounding environment to obtain a plurality of temperature values, integrating the temperature information, and transmitting the temperature information to the plurality of data transmission devices, and transmitting the data to the database and comparing the processing. The device stores the temperature information in the database as the content of the reference information.

Preferably, the method further comprises: providing a solar power generating device having an estimating unit, and estimating, by the estimating unit, the amount of power generated by the solar power generating device according to the solar radiation amount information.

Preferably, each of the pyranometers is a sun-tracking sundial or a sunburst with an inclination, and the position information includes the latitude and longitude, height, inclination of each pyrometer, and the time point of the current measurement.

Preferably, the method further comprises setting a plurality of weather detecting devices, using the weather detecting devices to detect the wind speed and weather of the surrounding environment, integrating the wind information and the weather information, and transmitting the wind information and the weather information to the plurality of data transmissions. The device is further transmitted to the database and the comparison processing device, and stores the wind information and the weather information in the database as the content of the reference information.

In view of the above, the solar radiation ratio comparison system and method of the present invention may have one or more of the following advantages:

(1) The solar radiation comparison system and method of the present invention analyzes the cloud distribution of the sky by using a comparison processing device, and effectively analyzes the influence of the cloud layer on the solar radiation quantity, thereby accurately correcting the solar radiation quantity.

(2) The solar radiation comparison system and method of the present invention are combined with a solar power generation device to effectively adjust the position of the solar power generation device facing the sun, and improve the operational efficiency of the solar power generation device.

The advantages and features of the present invention, as well as the technical methods of the present invention, are described in more detail with reference to the exemplary embodiments and the accompanying drawings. The embodiments of the present invention are to be construed as being limited by the scope of the present invention, and the invention The scope of the patent application is defined.

As shown in Fig. 1, it is a block diagram of a first embodiment of a solar radiation ratio comparison system and method of the present invention. In this embodiment, the solar radiation ratio comparison system of the present invention includes a plurality of pyranometers 10, a plurality of sky image capturing devices 20, a plurality of temperature sensors 30, a plurality of data transmitting devices 40, a database 50, and a ratio. The processing device 60 is applied. A plurality of pyranometers 10 are horizontally arranged to measure the solar radiation amount and integrated into the solar radiation information 11; a plurality of sky image capturing devices 20 respectively face the sky to collect sky images and integrate into sky image information 21; a plurality of temperatures The sensor 30 senses the surrounding environment to measure the temperature value, and integrates into the temperature information 31. The plurality of data transmission devices 40 connect the pyranometer 10, the sky image capturing device 20, and the temperature sensors 30 to obtain the insolation. The quantity information 11, the sky image information 21 and the temperature information 31; the database 50 wirelessly or wiredly connects a plurality of data transmission devices 40 to store the solar radiation information 11, the sky image information 21 and the temperature information 31, and integrate them into reference information 51. The comparison processing device 60 connects the plurality of data transmission devices 40 to obtain the solar radiation information 11, the sky image information 21, and the temperature information 31, and then analyzes the sky image information 21 through the image processing technology to obtain the cloud distribution of the sky and learn the sun. The degree of occlusion by the cloud, combined with the position of the sun and the position information of a plurality of pyranometers 10, thereby calculating The solar radiation quantity information 61 is compared, and the solar radiation quantity information 11 is corrected by comparing the solar radiation quantity information 11 and the comparison solar radiation quantity information 61, without the user having to bring the calibration instrument to the field to correct the solar radiation meter 10, thereby eliminating the trouble of correction. And increase convenience.

Wherein, the plurality of sunburstmeters are chasing sun-type sunbursts or sunbursts with dip angles, and the position information includes the latitude and longitude, height, inclination angle of the sunburst 10 and the time point of the current measurement to more accurately calculate the comparison solar radiation information 61 . Furthermore, the wireless connection may be Wifi communication, ZigBee communication, or LoRa communication, as long as it is a wireless communication mode, and is not limited to the scope of the present invention.

As shown in Fig. 2, it is a correction flowchart of the first embodiment of the solar radiation ratio comparison system and method of the present invention. The calibration process of the present invention is described in detail with FIG. 2: (1) S1: input real-time information to the database 50, and the instant information is the instantaneously received solar radiation information 11, the sky image information 21, the temperature information 31, and the time, and enters the process at the same time. S2 and S3. (2) S2: Searching in the database 50 and using the data grouping algorithm and finding the corresponding reference information 51 according to the current instant information received, specifically, the time according to the instant information, the sky image information 21, and the solar radiation amount. The information 11 and the temperature information 31 find the reference information 51 similar to the real-time information in the database 50, and then use the image processing technology to analyze the sky image information 21 of the real-time information to obtain the cloud distribution of the sky, thereby learning that the sun is covered by the cloud layer. The degree of occlusion, if no similar reference information 51 is found, proceeds to flow S4. (3) S3: The instant information is stored in the database 50. (4) S4: Create a new category for the received reference information. (5) S5: According to the selected reference information 51 of the data grouping algorithm, the cloud distribution of the sky, the position of the sun, and the real-time information, the comparison processing device 60 further calculates the comparison solar radiation amount information 61 to correct the immediately accepted Insolation information 11. According to the above process, the accurate comparison solar radiation amount information 61 can be calculated on the reference information 51 stored in the database 50 to accurately correct the instantaneously received solar radiation amount information 11.

Specifically, the data clustering algorithm first sets the cluster center and category, and the number of cluster centers and categories is not limited and can be increased or decreased according to the operator's control. According to the received reference information 51 and the cluster center distance, it is determined whether For the same category, such as K-Mean Clustering or Fuzzy C-Means Clustering, the reference information with similar distance from the cluster center is the same category, and the reference information far away from the cluster center is different categories, so for data or information In terms of classification, data grouping algorithms are quite convenient and widely used.

In addition, the reference information 51 is preferably information when the daylight meter 10 is normally operated, so that the subsequent comparison processing device 60 performs the calculation of the comparison solar radiation amount information 61, so that the error of the comparison solar radiation amount information 61 is lowered to improve the accuracy.

Please refer to FIG. 3, FIG. 4 and FIG. 5, which are respectively a block diagram of a second embodiment of the solar radiation ratio comparison system and method of the present invention, and a second implementation of the solar radiation ratio comparison system and method of the present invention. A practical application diagram of an example and a method flow diagram of a second embodiment of the system and method of the present invention. In the present embodiment, the components of the same component symbols are similar in configuration to those described above, and the likes are not described herein again.

In the third embodiment, the difference from the first embodiment is the arrangement of the solar power generation device 70 and its estimation unit 71, and the solar power generation device 70 is electrically connected to the comparison processing device 60. Here, the relationship between the solar power generation device 70 and the comparison processing device 60 will be described as follows: (1) When the solar power generation device 70 is normally operated during the daytime, the solar power generation device 70 adjusts the solar power generation device 70 to face the sun based on the solar radiation amount information 11. The position is such that the solar power generation device 70 receives the optimum amount of solar radiation to generate sufficient power, and the estimating unit 71 estimates the amount of power generated by the solar power generating device 70 based on the solar radiation amount information 11, thereby smoothly estimating the need to be from the power grid. The amount of power dispatched. (2) When the solar power generation device 70 is at night, the value of the solar radiation amount information 11 at this time is zero, and the solar power generation device 70 stores the amount of electricity generated during the day and stops the operation, so that the solar power generation device 70 operates more efficiently.

In addition, a plurality of weather detecting devices 80 are further included, and each weather detecting device 80 detects wind speed and weather of the surrounding environment, and integrates into weather information 81 and wind information 82, and connects a plurality of data transmitting devices 40 to transmit weather. The information 81 and the wind information 82 to the database 50 and the comparison device 60 allow the database 50 to store the current weather information 81 and the wind information 82 as the content of the reference information 51, and the comparison processing device 60 also incorporates the weather information 81 and the wind. The information 82 serves as a basis for calculating the comparison of the solar radiation amount information 61, and transmits the weather information 81 and the wind information 82 to the estimating unit 71 as a basis for estimating the power generation amount.

The actual application of the present invention is illustrated in Fig. 4. Since the amount of solar radiation is affected by the terrain, for example, the amount of solar radiation in the high ground is obviously higher than the amount of solar radiation in the ground, and the amount of solar radiation is also affected by the latitude, such as the equator. The amount of solar radiation is higher than the amount of solar radiation at other latitudes. It is known that the amount of solar radiation received by the local countries is not the same. The amount of electricity generated by the solar power generation device 70 is quite related to the amount of solar radiation. Therefore, the amount of electricity generated by the solar power generation device 60 varies from country to country. There are different power generation places, and the auxiliary of the pyranometer 10 is needed to adjust the position of the solar power generating device 70 facing the sun to obtain the best solar radiation amount and to generate the optimal power generation amount.

In other words, the relationship between the solar radiation and the terrain is described by the solar radiation quantity formula as follows: AM=1/cosθ AM is the air quality, θ is the angle between the sun position at noon and the sun position at other times, so AM = 1 at noon, I _D is the intensity of direct sunlight, h is the height from sea level, a=0.14 . It can be seen from the above formula that the higher the height from the sea level, the larger the value of I _D , that is, the higher the terrain, the higher the value of I _D and the different intensity of direct sunlight at different times. The solar power generation device 60 receives different solar radiation amounts due to terrain differences and different times, and uses the solar radiation ratio comparison system of the present invention to reduce the solar radiation amount error, thereby adjusting the optimal position of the solar power generation device 70 facing the sun to receive the most Good solar radiation and a considerable amount of electricity generated.

In summary, and in conjunction with FIG. 5, the steps of the solar radiation comparison method of the present invention are as follows: (1) S11: A plurality of pyranometers 10 are horizontally set to measure a plurality of solar radiation quantities, and the insolation information is integrated and obtained. Each day is a day-to-day sunburst or a sunburst with a dip. (2) S12: Set a plurality of sky image capturing devices 20 to face the sky to collect a plurality of sky images, and integrate and obtain sky image information 21. (3) S13: A plurality of temperature sensors 30 are set to sense the surrounding environment to obtain a plurality of temperature values, and are integrated into the temperature information 31. (4) S14: obtaining the solar radiation information 11, the sky image information 21, and the temperature information 31 by using a plurality of data transmission devices 40, and transmitting the solar radiation information 11, the sky image information 21, and the temperature information 31 to the data through wired communication or wireless communication. Library 50 and comparison processing device 60. (4) S15: The stored and integrated solar radiation information 11, the sky image information 21, and the temperature information 31 are reference information 51 to the database 50. (5) S16: analyzing the sky image information 21 by using the image processing technology of the comparison processing device 60 to obtain the cloud distribution state of the sky, knowing the degree of the sun being blocked by the cloud layer, searching in the database 50, and using the data grouping calculation. The corresponding reference information 51 is selected by the method, and the position information of the sun position and the plurality of pyranometers 10 are matched, thereby calculating the comparison solar radiation amount information 61, and then correcting the solar radiation by comparing the solar radiation quantity information 11 and the comparison solar radiation quantity information 61. Quantity information 11. (6) S17: The solar power generation device 70 is provided in combination with the solar power generation device 70 and the comparison processing device 60 to adjust the position of the solar power generation device 70 facing the sun, thereby improving the operational efficiency of the solar power generation device 70. (7) S18: The amount of power generated by the solar power generating device 70 is estimated by the estimating unit 71 provided in the solar power generating device 70, thereby efficiently estimating the amount of power to be dispatched from the power grid.

In addition, a plurality of weather detecting devices 80 are provided, and each weather detecting device 80 is used to detect the wind speed and weather of the surrounding environment, and integrated into the weather information 81 and the wind information 82, and the weather information 81 and the wind information 82 are transmitted to A plurality of data transfer devices 40 are further transferred to the database 50 and the comparison processing device 60. The database 50 incorporates the weather information 81 and the wind information 82 into the content of the reference information 50. The comparison processing device 60 also incorporates the weather information 81 and the wind information 82 as the basis for calculating the comparison solar radiation information 61, and transmits the weather information 81 and The wind information 82 to the estimating unit 71 is used as the basis for estimating the amount of power generation. Since the solar power generating device 70 is also affected by the wind speed and the weather of the day, the weather information 81 and the wind information 82 are incorporated into the estimating unit 71 to accurately Estimated power generation.

It is worth mentioning that the solar radiation amount comparison method of the present invention can be applied to different types of solar power generation devices, such as a polycrystalline solar power generation device, as long as it is a device that uses solar radiation to generate electricity, and is not limited to the present invention. The scope of the enumeration.

In summary, the solar radiation comparison system and method of the present invention utilizes the comparison processing device 60 to effectively analyze the distribution of the sky cloud layer, and uses the data grouping algorithm to select the corresponding reference information 51, and matches the position and number of the sun. The position information of the sunmeter 10 is used to calculate the comparison solar radiation amount information 61, and the solar radiation quantity information 11 is corrected by the user, without the user having to use the calibration instrument to correct each of the solar radiation meters 10, thereby eliminating the user's correction trouble. In conjunction with the use of the solar power generation device 70, the position of the solar power generation device 70 is effectively adjusted to optimize the amount of power generated by the solar power generation device 70. In summary, the solar radiation ratio comparison system and method of the present invention has the advantages as described above, and efficiently corrects the solar radiation amount information 11 of the plurality of pyranometers 10, thereby improving the convenience in use.

The above is intended to be illustrative only and not limiting. Any equivalent modifications or alterations to the spirit and scope of the invention are intended to be included in the scope of the appended claims.

10‧‧‧Days
11‧‧‧Day shot information
20‧‧‧ Sky image capture device
21‧‧‧ Sky Image Information
30‧‧‧temperature sensor
31‧‧‧ Temperature Information
40‧‧‧ data transfer device
50‧‧‧Database
51‧‧‧Reference information
60‧‧‧ comparison processing device
61‧‧‧Comparative solar radiation information
70‧‧‧Solar power plant
71‧‧‧ Estimation unit
80‧‧‧Weather detection device
81‧‧‧Weather Information
82‧‧‧ Wind Information
AM‧‧‧air quality
I _D ‧‧‧Intensity of direct sun exposure
H‧‧‧height
S1, S2, S3, S4, S5‧‧‧ processes
S11, S12, S13, S14, S15, S16, S17, S18‧‧‧ steps θ‧‧‧ angle

1 is a block diagram of a first embodiment of a solar radiation ratio comparison system and method of the present invention.

2 is a flow chart of correction of the first embodiment of the solar radiation ratio comparison system and method of the present invention.

Figure 3 is a block diagram of a second embodiment of the system and method of solar radiation comparison of the present invention.

Figure 4 is a practical application diagram of a second embodiment of the solar radiation ratio comparison system and method of the present invention.

Figure 5 is a flow chart of a method of a second embodiment of a system and method for measuring the amount of radiation of the present invention.

Claims (12)

A solar radiation ratio comparison system comprising: a plurality of pyranometers respectively configured to measure a daily shot of the sun and integrated into one-day shot information; a plurality of sky image capture devices respectively facing the sky to collect a sky image, and Integrating a sky image information; a plurality of data transmitting devices connecting the daylight meters and each of the sky image capturing devices to obtain the insolation information and the sky image information; a database, wirelessly connecting or wiredly connecting the plurality of a data transmission device for storing the solar radiation amount information and the sky image information and integrating the same into a reference information; and a comparison processing device connecting the plurality of data transmission devices to obtain the solar radiation amount information and the sky image information, and then analyzing The sky image information and the position of the sun and the position information of the plurality of pyranometers, thereby calculating a comparison of the amount of solar radiation, and correcting the amount of solar radiation by comparing the information of the solar radiation and the information of the solar radiation. News. The solar radiation ratio comparison system of claim 1, wherein each of the solar radiation meters is a sun-tracking daylight meter or a one-day radiometer having an inclination angle, and the position information includes a latitude and longitude of each of the sun-radiometers. , a height, the angle of inclination, and a point in time of the current measurement. The solar radiation ratio comparison system of claim 1, wherein the comparison processing device analyzes the sky image information through an image processing technique. The solar radiation ratio comparison system of claim 1, wherein the solar radiation ratio comparison system further comprises a plurality of temperature sensors respectively sensing the ambient environment to measure a temperature value and integrating into a temperature information, and Each of the data transfer devices is coupled to transmit the temperature information to the database and the comparison processing device. The solar radiation ratio comparison system of claim 1, wherein the solar radiation ratio comparison system further comprises a solar power generation device, wherein the solar power generation device has an estimation unit, and the estimation unit is based on the solar radiation quantity information. A power generation amount of the solar power generation device is estimated. The solar radiation comparison system of claim 1, wherein the weather detection device further comprises a plurality of weather detection devices, each of the weather detection devices detecting a wind speed and a weather in the surrounding environment, and integrating the weather information into a weather information and a wind information, and connecting the plurality of data transfer devices to transmit the weather information and the wind information to the database and the comparison processing device. A solar radiation comparison method includes: setting a plurality of pyranometers to measure a plurality of solar radiation amounts of the sun, and integrating them into one-day radiation information; setting a plurality of sky image capturing devices toward the sky to collect a plurality of sky images, and Integrating into a sky image information; acquiring the solar radiation information and the sky image information by using a plurality of data transmission devices, and transmitting the solar radiation information and the sky image information to a database and a ratio through a wired communication or a wireless communication And processing the device; storing and integrating the solar radiation information and the sky image information as a reference information to the database; and analyzing the sky image information by using the comparison processing device, and matching the sun position and the plurality of solar pyrometers The position information is used to calculate a pair of solar radiation information, and then the solar radiation information is corrected by comparing the solar radiation information with the comparison solar radiation information. The method of comparing the solar radiation according to claim 7, wherein the method further comprises analyzing the sky image information by using an image processing technology of the comparison processing device. The solar radiation quantity comparison method of claim 7, wherein the method further comprises: setting a plurality of temperature sensors to sense the surrounding environment to obtain a plurality of temperature values, and integrating into a temperature information, and transmitting the temperature information The plurality of data transfer devices are further transmitted to the database and the comparison processing device, and the temperature information is stored in the database as the content of the reference information. The solar radiation amount comparison method according to claim 7, wherein the method further comprises: setting a solar power generation device having an estimation unit, and estimating, by the estimation unit, one of the solar power generation devices according to the solar radiation amount information; Power generation. The method of comparing solar radiation according to claim 7, wherein each of the pyrometers is a sun-tracking sundial or a one-day radiometer having an inclination, and the location information includes a latitude and longitude of each of the pyrometers. , a height, the angle of inclination, and a point in time of the current measurement. The method of comparing the solar radiation according to claim 7, wherein the method further comprises: setting a plurality of weather detecting devices, using each of the weather detecting devices to detect a wind speed and a weather in the surrounding environment, and integrating into a wind power Information and weather information, and transmitting the wind information and the weather information to the plurality of data transfer devices, and then to the database and the comparison processing device, storing the wind information and the weather information in the database as The content of this reference information.