JP2012200097A - Power generation equipment control device, power generation equipment control method, power generation equipment control program, power calculation device and power control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To appropriately control other power generation equipment by calculating a total installation area of a solar panel in a predetermined area so as to grasp total generation power of the solar panel.SOLUTION: A generation power control device 1 comprises: a current satellite image storage unit 110 which stores a current satellite image in which a solar panel in a predetermined small area is picked up; a solar panel area calculation section 210 which calculates a total area of the solar panel installed in the predetermined small area based on the current satellite image stored in the current satellite image storage unit 110; a solar panel generation power calculation section 240 which calculates total generation power of the solar panel based on the total area of the solar panel calculated by the solar panel area calculation section 210; and a power control unit 20 which controls generation power of power generation equipment other than the solar panel based on the generation power of the solar panel calculated by the solar panel generation power calculation section 240.

Description

  FIELD Embodiments described herein relate generally to a power generation facility control device, a control method, a control program, a power calculation device, and a power control device for controlling the generated power of a power generation facility in a system to which a solar panel type power generation facility is connected.

  Generally, in power generation facilities (nuclear power generation facilities, thermal power generation facilities, hydroelectric power generation facilities, etc.) connected on the power transmission system, output adjustment according to a demand forecast curve planned in advance is required based on seasonal and weather forecasts. It becomes. However, it is difficult for nuclear power generation facilities to change the output frequently because there is a need to ensure the stability of the nuclear reactor. For this reason, nuclear power generation facilities are mainly responsible for fixed demand (base load). On the other hand, thermal power generation facilities and hydroelectric power generation facilities can respond more quickly to changes in output than nuclear power generation facilities. For this reason, thermal power generation equipment and hydroelectric power generation equipment are in charge of output adjustment functions that respond quickly to short-term demand changes.

  However, in recent years, in addition to the above-described power generation facilities, installation of natural energy recovery type power generation facilities such as solar panel power generation facilities has been rapidly increasing. And this solar panel type power generation equipment is connected to the same power transmission system as other power generation equipment, and bears a part of demand. However, many of the solar panel type power generation facilities also serve the purpose of covering private power consumption in the installed offices and households. For this reason, the electric power supplied from the solar panel power generation facility to the power transmission system side is limited to the surplus that exceeds the private power consumption. This private power consumption varies finely according to the date and season. Therefore, the solar panel type power generation facility has a feature that the power supplied to the power transmission system largely fluctuates due to fluctuations in private power consumption.

  In addition to this, since the energy source of the solar panel type power generation equipment is sunlight, the generated power greatly depends on the season, weather, time, and the like. For this reason, it is difficult to accurately predict the transmission power of the solar panel power generation facility in a certain area.

  In addition, adjustment of the balance between supply and demand in the power transmission system is performed by each power generation facility by controlling the frequency. Here, the operation schedule of the power generation facilities existing in a certain area is determined by the demand prediction curve. This demand prediction curve is created based on experience and results. However, since actual demand fluctuates rapidly, there will always be a difference between demand and total generated power.

  When such a supply-demand difference occurs, a frequency change occurs in the power transmission system as follows. First, when insufficient power occurs, the system frequency is lowered. On the other hand, when surplus power is generated, the system frequency is increased. Generally, each power generation facility monitors this frequency change and adjusts the output so as to keep the frequency constant. As a result, each power generation facility maintains the stability of the transmission system by matching the demand of the transmission system with the supplied power.

  However, a natural energy recovery type power generation facility represented by a solar panel type cannot arbitrarily change the power generation output according to the frequency fluctuation of the power transmission system. On the contrary, the generated power of the solar panel power generation facility depends on the season, weather, time, etc., so that the generated power itself cannot be incorporated in the plan in advance. For this reason, when output fluctuation occurs in the solar panel power generation facility, a further supply-demand difference on the power transmission system side is generated.

  In order to cope with this, in the current power transmission system, other power generation facilities can control the influence on the power transmission system by limiting the connection amount or the output ratio of the solar panel power generation facility to the total generated power. It is stopped in the range.

Japanese Patent Laying-Open No. 2005-312163

  By the way, with the growing interest in international natural energy, it is expected that the spread of solar power generation equipment will continue. However, with the current technology, for the reasons described above, in order to stabilize the power transmission system, it is unavoidable to partially restrict the connection of the solar panel power generation facility to the power transmission system.

  In particular, solar panel power generation facilities are often small for home use and are easily installed and removed. For this reason, it is difficult to grasp the actual total power generation capacity of solar panel power generation facilities per certain area. In addition, as described above, the generated power of the solar panel power generation facility varies depending on the season, weather, and power for private consumption. Therefore, it is difficult to predict the total power output from the solar panel power generation facility in a certain area or wide area to the power transmission system side.

  When such a solar panel type power generation facility is connected to the transmission system, it is difficult to grasp and predict the total generated power, so it becomes one of the disturbance factors for the total generated power for the demand forecast planned for the entire transmission system. . That is, there is a high possibility that a greater difference than before occurs between the demand and supply, and the frequency of the power transmission system becomes unstable.

  The present invention has been proposed in order to solve the above-described problems of the prior art, and its purpose is to calculate the total installation area of solar panels in a predetermined area. It is an object of the present invention to provide a power generation facility control device, a power generation facility control method, a power generation facility control program, a power calculation device, and a power control device capable of accurately grasping total generated power and appropriately controlling other power generation facilities.

In order to achieve the above object, the power generation equipment control device of the embodiment is characterized by having the following configuration.
(1) Image storage unit that stores images of solar panels in a given area
(2) Solar panel area calculation unit that calculates the area of the solar panel installed in a predetermined area based on the image stored in the image storage unit
(3) Solar panel generated power calculation unit that calculates the generated power of the solar panel based on the area of the solar panel calculated by the solar panel area calculation unit
(4) A power control unit that controls the generated power of the power generation equipment other than the solar panel based on the generated power of the solar panel calculated by the solar panel generated power calculation unit. Can be understood as a method for realizing the functions by a computer or an electronic circuit and a program to be executed by the computer. The configuration for calculating the generated power can also be understood as a power calculation device. Furthermore, the configuration for controlling the generated power can also be understood as a power control device.

  In the above form, the total installation area of the solar panel in the said area can be calculated from the image which imaged the solar panel in a predetermined area. For this reason, it is possible to accurately grasp the total generated power of the solar panels in a certain area and appropriately control other power generation facilities.

The block diagram which shows the structure of the electric power generation equipment control apparatus of 1st Embodiment. The flowchart which shows the procedure of the electric power calculation process in embodiment of FIG. The flowchart which shows the procedure of the correction control processing in embodiment of FIG. The block diagram which shows the structure of the power generation equipment control apparatus of 2nd Embodiment. The flowchart which shows the procedure of the electric power calculation process in embodiment of FIG.

[A. First Embodiment]
This embodiment is a power generation facility control device that calculates the total generated power of a solar panel based on the total installation area of the solar panel installed in a certain area and the average power generation efficiency of the solar panel from satellite images. is there.
[1. overall structure]
The overall configuration of the present embodiment will be described with reference to the block diagram of FIG. The power generation facility control device 1 of the present embodiment can be realized by controlling a computer with a predetermined program. The program in this case implements the processing of each unit as described below by physically utilizing computer hardware.

  A method for executing the processing of each unit described below, a program, and a recording medium on which the program is recorded are also one aspect of the embodiment. Moreover, how to set the range processed by hardware and the range processed by software including a program is not limited to a specific mode. For example, any one of the units described below can be configured as a circuit that realizes each process.

  First, as shown in FIG. 1, the power generation facility control device 1 includes a power calculation unit 10, a power control unit 20, and the like. The electric power calculation part 10 is provided corresponding to every predetermined area where the solar panel type power generation equipment is installed (indicated by 10-1, 2, 3, 4,..., N in the figure). Each electric power calculation part 10 is a process part which calculates the total electric power generation of the solar panel power generation equipment installed in each area. In the present embodiment, the areas where each power calculation unit 10 calculates the total generated power are referred to as “small areas”, respectively.

  The power control unit 20 is a processing unit that controls power generation facilities in a wide area including one or a plurality of small areas where each power calculation unit 10 is installed. In this embodiment, this wide area is referred to as a “large area”. The power control unit 20 controls power generation facilities in one or a plurality of large areas. Although not shown, each power calculation unit 10 and power control unit 20 are configured to be able to transmit and receive (input / output) information to and from each other via a communication network and a transmission / reception unit (input / output unit).

  The power control unit 20 is configured to be capable of transmitting and receiving (input / output) information to and from the control system of the power generation equipment to be controlled, although not shown, via a communication network and a transmission / reception unit (input / output unit). ing. The power generation equipment controlled by the control system according to the power control unit 20 or the output thereof is a power generation equipment other than the solar panel power generation equipment that each power calculation unit 10 targets for power calculation.

[2. Configuration of power calculation unit]
Next, the configuration of the power calculation unit 10 will be described. That is, the power calculation unit 10 includes a storage unit 100, a calculation processing unit 200, an input unit 300, an output unit 400, and the like.

[2-1. Storage unit]
The storage unit 100 is a component that stores various types of information necessary for the processing of the arithmetic processing unit 200. The storage unit 100 includes, for example, a clear sky satellite image storage unit 110, a time data storage unit 120, a current satellite image storage unit 130, a power generation efficiency storage unit 140, and the like.

(1) Sunny Weather Satellite Image Storage Unit The sunny weather satellite image storage unit 110 is a component that stores satellite images of fine weather in a small area. The satellite image at the time of fine weather is an image for extracting a solar panel image of a small area, as will be described later. Therefore, the satellite image is not limited to a specific type as long as it is an image from which a solar panel image can be extracted. For example, it may be a visible image or an infrared image. The visible image is an image created by observation using visible light. An infrared image is an image created by observation using infrared rays.

(2) Time Data Storage Unit The time data storage unit 120 is a component that stores time data related to the time of a small area. This time data is data for obtaining the irradiation angle of sunlight in a small area, as will be described later. For this reason, time data will not be limited to specific data, if it is the information which can obtain | require the irradiation angle of sunlight. For example, the timing data may be information regarding the current date and time, such as the year, month, day, hour, and minute. Therefore, the simplest method for obtaining time data is to obtain it from the internal clock of the computer. Further, for example, the year may be divided into several months in advance, and rough information such as which season the present belongs to and what time of the day may be used.

(3) Current Satellite Image Storage Unit The current satellite image storage unit 130 is a configuration unit that stores current satellite images of small areas. As described above, the types of satellite images are not limited to specific ones. It should be noted that even if “present” is mentioned here, there is a possibility that an accurate deviation from the present may occur depending on the input mode of the satellite image. For this reason, the term “present” here refers to a time having a certain range. For example, the current image includes the meaning of the latest available image and the latest image already stored.

(4) Power Generation Efficiency Storage Unit The power generation efficiency storage unit 140 is a component that stores the power generation efficiency of the solar panel installed in a small area. As the power generation efficiency, one that is calculated or determined in advance based on specified information can be used. Examples of the prescribed information include vendor design values and industry data. Moreover, the power generation efficiency can be obtained from the facility information obtained at the time of contract for linking the solar panel power generation facility to the power system.

(5) Setting Storage Unit Although not shown, the storage unit 100 is also configured with a setting storage unit that stores various settings necessary for the processing of the arithmetic processing unit 200. This setting includes, for example, position information (latitude, longitude, etc.) specifying the target area, identification information for identifying the area, extraction criteria for images such as solar panels and clouds, area of the solar panel, sunlight The calculation formulas for obtaining the irradiation angle, the irradiation rate, the transmittance, the power generation efficiency, the generated power, etc., and the parameters used for these calculation formulas are included.

  The information stored in the storage unit 100 can be input from the outside via the input unit 30 described later, for example. In addition, calculation results calculated by each unit to be described later can also be stored in the storage unit 100. Therefore, the storage unit 100 is, for example, a solar panel image storage unit, a solar panel area storage unit, an irradiation angle storage unit, a cloud image storage unit, a transmittance storage unit, an irradiation rate storage unit, or a solar panel power generation efficiency storage. Function as a solar panel generated power storage unit. Therefore, an embodiment in which these calculation results calculated in advance in the outside are input via the input unit 30 and stored in the storage unit 100 and used in the calculation processing unit 200 is also included in the embodiment.

  Such a storage unit 100 can typically be configured by various built-in or externally connected memories, a hard disk, an optical disk, or the like, but any storage medium that can be used now or in the future can be used. A register or the like used for calculation can also be regarded as the storage unit 100. A mode in which a storage medium in which information is already stored can be used in the arithmetic processing unit 200 by mounting the storage medium on the reading device may be employed. The mode of storage includes not only a mode in which memory is stored for a long time, but also a mode in which data is temporarily stored for processing and deleted or updated in a short time.

[2-2. Arithmetic processing unit]
The arithmetic processing unit 200 includes a solar panel area calculation unit 210, a solar light irradiation rate calculation unit 220, a solar panel power generation efficiency calculation unit 230, a solar panel power generation power calculation unit 240, and the like.

(1) Solar Panel Area Calculation Unit The solar panel area calculation unit 210 is a processing unit that calculates the total area of the solar panel in a small area from the satellite image at the time of fine weather stored in the satellite image storage unit 110 at the time of fine weather. It is. The solar panel area calculation unit 210 includes a solar panel image extraction unit 211, a solar panel area integration unit 212, and the like.

  The solar panel image extraction unit 211 is a processing unit that extracts an image of the solar panel from the satellite image during sunny weather stored in the satellite image storage unit 110 during sunny weather. Various methods for extracting the solar panel image are conceivable.

  For example, an image of a solar panel in a satellite image has characteristics different from those of other objects. Therefore, the characteristics of the solar panel captured in the satellite image are stored in advance in the setting storage unit as the solar panel extraction standard. Then, the solar panel image extraction unit 211 extracts a region that matches this feature.

  More specifically, in the satellite image, the solar panel and other objects (for example, forests, rivers, buildings (residence, factory, etc.)) have the following different characteristics.

(a) Shape characteristics The shape of the solar panel is generally rectangular. However, depending on the imaging angle, for example, the shape is a parallelogram. A solar panel can be extracted by recognizing such a shape. As the shape recognition technique, for example, a feature extraction method including edge extraction or the like, an image identification method including pattern matching or the like can be applied.

(b) Color characteristics Solar panels generally have a black color. A solar panel can be extracted by recognizing the color peculiar to this solar panel. As a color recognition technique, for example, a threshold value can be set in advance using RGB or a color code, and a corresponding region can be extracted.

(c) Characteristics of temperature For general objects, the amount of heat absorption can be estimated depending on the color, although the degree varies depending on the material. However, the amount of heat absorbed by the solar panel is less than the value normally estimated by its color, and the temperature is lowered. Therefore, it is conceivable that a temperature corresponding to a predetermined color is set as a threshold in advance, and an area having a temperature lower than the threshold is extracted while being the same color and an approximate color. The temperature can be detected, for example, by converting the surface temperature into a thermograph based on an infrared image.

  The solar panel image extraction unit 211 can extract a solar panel image using, for example, any one of the above features (1) to (3) or a combination thereof as an extraction reference. However, in the embodiment, it is not excluded to use other methods and combinations thereof. Any known method other than the methods exemplified above can be applied, and combinations thereof are also free. In addition, what kind of correction processing, such as noise removal and binarization, is freely performed on the target image for feature extraction.

  The solar panel area integrating unit 212 is a processing unit that integrates the total area of the solar panels in the small area based on the solar panel image extracted by the solar panel image extracting unit 211. When the original shape can be inferred from the extracted shape, the original shape may be corrected and then calculated. For example, in the case of an inclined shape (for example, a parallelogram) due to the installation angle or imaging angle, the area is calculated after the original shape (for example, a rectangle) is obtained by conversion to return the inclination. Processing may be performed. Any known method can be applied to such correction processing as conversion. Moreover, you may perform this correction process in said sunlight panel image extraction part 211, for example. Depending on the degree of inclination, the accuracy required for the calculated value, etc., such correction processing may be omitted in all or part of the extracted image.

  In addition, for example, the actual area can be obtained by correcting the area of the solar panel image region according to the scale of the image. However, this area is used for calculation of the generated power of the solar panel described later. For this reason, if it is a value which can calculate generated electric power, it will not be limited to an actual area. For example, it may be a relative value that relatively represents the actual area.

(2) Sunlight Irradiation Rate Calculation Unit The sunlight irradiation rate calculation unit 220 is a processing unit that calculates the sunlight irradiation rate from the current satellite image stored in the current satellite image storage unit 130. The sunlight irradiation rate calculation unit 220 includes an irradiation angle calculation unit 221, a cloud image extraction unit 222, a transmittance calculation unit 223, an irradiation rate calculation unit 224, and the like.

  The irradiation angle calculation unit 221 is a processing unit that calculates the current sunlight irradiation angle in a small area. This irradiation angle can be calculated based on, for example, the position information of a small region stored in the setting storage unit, the current time data of the region stored in the time data storage unit 12, and the like.

  The cloud image extraction unit 222 is a processing unit that extracts a cloud image from the current satellite image stored in the current satellite image storage unit 110. For this cloud region, for example, a portion spreading in white or gray on the image is extracted. As described above, the image extraction technique is not limited to a specific one.

  The transmittance calculation unit 223 is a processing unit that calculates the transmittance of sunlight in the cloud region extracted by the cloud image extraction unit 222. The transmittance of sunlight can be determined based on, for example, white shading in the extracted region. Other shades of color can also be used to calculate the transmittance. This method is not limited to a specific one.

  The irradiation rate calculation unit 224 is a processing unit that calculates the irradiation rate of sunlight based on the irradiation angle calculated by the irradiation angle calculation unit 221 and the transmittance calculated by the transmittance calculation unit 223. For example, when the irradiation amount of sunlight is large, the irradiation rate increases, and when the irradiation amount is small, the irradiation rate decreases. Moreover, the larger the transmittance of the clouds that block sunlight, the greater the irradiation rate, and the smaller the transmittance, the smaller the irradiation rate.

(3) Solar Panel Power Generation Efficiency Calculation Unit The solar panel power generation efficiency calculation unit 230 corrects the power generation efficiency stored in the power generation efficiency storage unit 140 based on the irradiation rate calculated by the irradiation rate calculation unit 224. Thus, the processing unit calculates the actual power generation efficiency of the solar panel at the current time. This actual power generation efficiency can also be regarded as the average power generation efficiency of all the solar panels in the small area.

(4) Solar Panel Generated Power Calculation Unit The solar panel generated power calculation unit 240 is calculated by the total area of the solar panel calculated by the solar panel area calculation unit 210 and the solar panel power generation efficiency calculation unit 230. The processing unit calculates the generated power of the solar panel based on the actual power generation efficiency of the solar panel at the present time. Here, the calculated generated power is the total generated power of the solar panels in the small area managed by the power calculation unit 10.

[2-3. Input section]
The input unit 300 is a component that inputs information necessary for the arithmetic processing unit 200, selection of processing, and instructions. As this input unit 300, for example, a keyboard, a mouse, a touch panel (including those configured in a display device), and the like are conceivable. However, all input devices available now or in the future are included. The input unit 30 also includes an interface (receiving unit) that receives input from the communication network.

  As described above, information input via the input unit 300 can be used as information stored in the storage unit 100. For example, the input unit 300 can accept input of various satellite images used in the present embodiment from a server (for example, a weather server) of a system that provides satellite images via a communication network. In particular, the current satellite image is set to be updated at a predetermined interval. The shorter the interval, the more accurately the actual weather can be reflected.

  Moreover, it is good also as a structure which synchronizes time data based on the time data which the input part 300 receives from the server etc. of the system which provides time by a NTP etc. via a communication network, or is updated timely. The power generation efficiency and various settings may also be input by the operator from the input unit 300, or those input from the input unit 300 from another server or the like via the communication network may be used.

[2-4. Output section]
The output unit 400 can recognize a satellite image, a solar panel image, a solar panel area, a cloud image, an irradiation angle, a transmittance, an irradiation rate, a power generation efficiency, a generated power, and the like for users including managers and operators. It is the component which outputs as follows. Examples of the output unit 40 include a display device and a printer. However, any output device available now or in the future is included.

[3. Configuration of power control unit]
The power control unit 20 is a processing unit that performs output correction of power generation facilities in each large area. The power control unit 20 includes a generated power total processing unit 21, an output adjustment unit 22, and the like.

[3-1. Total power generation processing section]
The generated power total processing unit 21 is a processing unit that sums the generated power of large areas including these small regions based on the total generated power of the solar panels in each small region input from each power calculation unit 10. . The generated power total processing unit 21 includes a region identification unit 21a and a power total unit 21b.

(1) Area Identification Unit The area identification unit 21a is a processing unit that identifies which large area the input solar panel generated power corresponds to. This identification processing can be performed using, for example, identification information given to each power calculation unit 10 or each small area. That is, identification information of the small area corresponding to each large area or the power calculation unit 10 is stored in advance in the storage unit set in the power control unit 20. Then, the area identification unit 21a identifies which large area the data corresponds to based on the identification information added to the input data.
(2) Electric power total part The electric power total part 21b is a process part which totals the solar panel power generation identified for which large area it corresponds by the area identification part 21a for every large area.

[3-2. Output adjustment unit]
The output adjustment unit 22 is a processing unit that adjusts (corrects) the output of the power generation equipment other than the solar panel in each large region based on the solar panel generated power for each large region totaled by the power total unit 21b. is there. For example, the demand-supply balance of the power transmission system can be matched by dividing the solar panel generated power from the output of other power generation facilities.

  In addition, control with respect to the other power generation equipment by the power control unit 20 may be direct or indirect. That is, the output data from the power control unit 20 may be transmitted to a power supply command station or the like and used in a frequency control system (AFC) or a demand / supply control system (ELD). Moreover, the aspect which a part or all of the electric power control part 20 is integrated in a part of control system of a power supply command station, and the output data may be utilized as mentioned above. For this reason, the data output from the output adjustment part 22 (output part) may be the control data with respect to another power generation facility, or the total generated power itself of the solar panel.

[4. Action]
The operation of the present embodiment as described above will be described.
[4-1. Solar panel power generation calculation process]
First, the procedure of the calculation process of the solar panel electric power generation by the electric power calculating apparatus 10 is demonstrated according to the flowchart of FIG.

  That is, the sunlight panel image extraction unit 211 extracts the image area of the sunlight panel from the satellite image in sunny weather stored in the sunny weather satellite image storage unit 110 (step 01). Then, the solar panel area integration unit 212 integrates the total area of the solar panels in the small area based on the extracted solar panel area (step 02).

  On the other hand, the irradiation angle calculation unit 221 calculates the irradiation angle of sunlight based on the time data stored in the time data storage unit 120 (step 03). Further, the cloud image extraction unit 222 extracts a cloud image from the current satellite image stored in the current satellite image storage unit 130 (step 04). The transmittance calculator 223 calculates the sunlight transmittance based on the extracted cloud image (step 05). And the irradiation rate calculation part 224 calculates the irradiation rate of sunlight based on the calculated irradiation angle and transmittance (step 06).

  The solar panel power generation efficiency calculation unit 230 calculates the current power generation efficiency of the solar panel based on the power generation efficiency stored in the power generation efficiency storage unit 140 and the calculated irradiation rate (step 07). The solar panel generated power calculation unit 240 calculates the total generated power of the current solar panel in the small area based on the calculated total area of the solar panel and the power generation efficiency (step 08). The calculated generated power is output to the power control unit 20 by the transmission / reception unit via the communication network.

[4-2. Power control processing]
Next, the correction control processing of other power generation facilities by the power control unit 20 will be described according to the flowchart of FIG. That is, when the generated power from each power calculation unit 10 is input (step 11), the area identification unit 21a in the power control unit 20 is based on the identification information included in the data and belongs to the large area. Is identified (step 12).

  The power summation unit 21b sums the generated power for each identified large area (step 13). The electric power total part 21b repeats the process of steps 11-13, when the large area where the generated electric power of all the small areas has already totaled does not appear (step 14).

  When the large area where all generated electric power is added appears (YES in Step 14), the output adjustment unit 22 generates a control signal for correcting the output of the large area (Step 15). The generated control signal is transmitted by the transmission / reception unit to a system for controlling the power generation facility via the communication network (step 16).

  Then, the generated power total processing unit 21 and the output adjustment unit 22 repeat the processes of steps 11 to 16 when there is a large area where the generated power has not been totaled yet (NO in step 17). The power control part 20 complete | finishes a process, when a total process is performed about all the large areas (YES of step 17).

[5. effect]
According to the present embodiment as described above, the following effects can be obtained.
(1) Based on the satellite image, it is possible to accurately grasp the total area of solar panels connected to the power transmission system and the total generated power. For this reason, output correction of other power generation equipment can be performed according to the generated power from the solar panel. As a result, even in a power transmission system to which a solar panel power generation facility is connected, it is possible to suppress frequency fluctuations due to an increase in the difference in demand-supply balance, thereby realizing stable operation of the power transmission system.

  (2) In order to calculate the total area of solar panels in a certain area, satellite images taken from solar panels are used. For this reason, even if the situation where it deviates from the facility information at the time of contract by performing installation and removal frequently, the present electric energy can be calculated correctly.

  (3) Since the total area of the solar panel is grasped from the satellite image and the total generated power is calculated, it is suitable for the rapid control of power generation facilities over a large scale. This advantage becomes apparent when the output fluctuation of each solar panel is predicted and compared with a case where other power generation facilities are started and stopped. For example, even if the output change of each solar panel is predicted from the solar panel side by taking a picture of the camera toward the sun, the output of the solar panel alone from the viewpoint of the degree of influence on the entire transmission system Variation does not make sense. If output fluctuations of individual solar panels in a predetermined area are predicted and summed up, it is obvious that the process becomes very complicated and cannot be performed quickly.

  In the first place, the technique of imaging the sun from the ground to the sky is a technique that is completely opposite in conception from the present embodiment of imaging the solar panel that is actually installed from the sky to the ground. In the present embodiment, by grasping the actual total area of the solar panels in a certain area that have already been installed, the response capability on the other power generation equipment side is improved with respect to fluctuations in the total generated power. Can do. For this reason, it is very effective as a control technique for other power generation facilities. Note that the processing in the power control unit can also perform quick power control based on a simple process called a total power amount process for each region.

  (4) Since the power generation efficiency of the solar panel is calculated based on the irradiation rate of sunlight, and the solar panel power generation is corrected based on this, more accurate data can be obtained. As for the irradiation rate of sunlight, accurate data reflecting the current situation such as the irradiation angle of sunlight and the transmittance of clouds can be obtained.

[B. Second Embodiment]
[1. Constitution]
This embodiment is basically the same configuration as the above embodiment. However, in the present embodiment, as shown in FIG. 4, the storage unit 100 has a past satellite image storage unit 150 and the arithmetic processing unit 200 has a prediction unit 250. The relationship between the power control unit 20 and the power calculation unit 10 is the same as that in the above embodiment, but the illustration is simplified.

  The past satellite image storage unit 150 is a component that stores past satellite images of a small area. As described above, the types of satellite images are not limited to specific ones. There is no particular limitation on the past period and the number of images. The past satellite image input method is also the same as described above. For example, an image stored in the current satellite image storage unit 130 is selected according to conditions (time, number, etc.) stored in advance in the setting storage unit, and is stored in the past satellite image storage unit 150 as a past image. It may be set.

  The prediction unit 250 is a processing unit that predicts a future satellite image based on the current satellite image stored in the current satellite image storage unit 130 and the past satellite image stored in the past satellite image storage unit 150. is there.

  The prediction unit 250 includes a cloud change information generation unit 251, a predicted satellite image generation unit 252, and the like. The cloud change information generation unit 251 is a processing unit that generates change information regarding how the clouds have changed based on the cloud images extracted from the current satellite image and the past satellite image by the cloud image extraction unit 222. It is. For example, the movement direction and area change information of the cloud from the past to the present can be generated based on the difference between the position and density of each extracted cloud image. Note that the cloud image extraction unit that extracts the cloud image from the current satellite image and the past satellite image may be provided in the prediction unit 250 separately from the cloud image extraction unit 222 of the sunlight irradiation rate calculation unit 220.

  The predicted satellite image generation unit 252 is a processing unit that generates a satellite image predicted in the future based on the change information generated by the cloud change information generation unit 251. For example, the predicted satellite image can be generated based on the moving direction of the cloud, the change information of the area of the area, and weather map data stored in advance in the setting unit. The period of the predicted satellite image to be generated and the point in time in the future are set in advance in the setting unit. However, it is not limited to a specific period and time. For example, after a predetermined time, a predetermined date, a predetermined month, a future date and time, etc.

[2. Action]
The procedure of the calculation process of the solar panel power generation in the above embodiment will be described according to the flowchart of FIG. That is, the processes of solar panel image extraction (step 31) and solar panel area integration (step 32) are the same as in the above embodiment. However, in the sunlight irradiation angle calculation (step 33), the irradiation angle calculation unit 221 uses the time data after a preset period or a preset future time as the timing data. The irradiation angle is calculated.

  Next, the cloud image extraction unit 222 extracts a cloud image from the current satellite image and the past satellite image (step 34). Then, the cloud change information generation unit 251 generates change information based on the extracted cloud image (step 35). The predicted satellite image generation unit 252 generates a predicted satellite image based on the generated change information (step 36).

  The cloud image extraction unit 222 extracts a cloud image from the predicted satellite image (step 37). Subsequent transmittance calculation (step 38), sunlight irradiation rate calculation (step 39), solar panel power generation efficiency calculation (step 40), solar panel power generation power calculation (step 41), calculation result output (step 42) Is the same as in the above embodiment.

  The predicted generated power output to the power control unit 20 is summed for each large region in the generated power total processing unit 21 in the same manner as in the above embodiment, and the prediction of the solar panel power generation facility for each large region is performed. Generated power can be calculated. This predicted generated power can be used for adjustment by the output adjustment unit 22, control by another control system, and the like. For example, it can be used for planning, adjustment, correction, etc. of operation schedules of other power generation facilities.

[3. effect]
According to the present embodiment as described above, the predicted generated power of the solar panel power generation facility in a certain region can be used to create an operation schedule plan for other power generation facilities. For this reason, even if it is a power transmission system to which a solar panel power generation facility is connected, it is possible to create an operation plan based on accurate prediction, and further stabilization of the demand-supply balance can be realized.

[D. Other Embodiments]
(1) The criteria for predetermining “regions” of small regions and large regions are free. In the above embodiment, the installation area of the solar panel type power generation equipment is a place where there is a certain degree of unity, and the power generation equipment where the solar power generation equipment in the “small area” affects the system. The jurisdiction is read as “large area” for convenience. Therefore, “small area” and “large area” do not necessarily mean the size of the land area. Since it is a concept for the management of electric power equipment to the last, it does not mean that the actual “small area” land is included in the “large area” land. Further, the “small region” included in the “large region” may be one or plural. There may be one or more “large areas” that the power control unit has jurisdiction over.

  (2) Administrative divisions may be used as “regions”. For example, it may be a small parcel of about a town or village, or a large-medium sized parcel such as a prefecture or city. However, the areas where the installation of solar panel power generation facilities is organized and the areas where other power generation facilities are managed are not necessarily the same as the administrative divisions. Can be set freely.

  (3) The kind of solar cell used for the solar panel used as object is not limited to a specific thing. For example, all solar cells that can be used at present or in the future such as silicon, inorganic compounds, organic, quantum dot type, and the like are included. The shape, size, number, etc. of the solar panels are not limited to specific ones. The solar panel extraction criteria in the setting storage unit are set according to the characteristics of each solar panel.

  (4) The processing described in the above embodiment is not limited to being performed in the order illustrated in the operation and the flowchart. For example, either the calculation of the solar panel area or the calculation of the solar light irradiation rate may be first. Either the irradiation angle or the transmittance may be calculated first. A mode in which these processes are calculated in parallel by a plurality of arithmetic devices is also conceivable.

  (5) A cloud area calculation unit for calculating the area of the cloud may be provided, and the irradiation rate or power generation efficiency may be calculated lower as the cloud area increases. Further, a comparison / determination unit that determines the area covered by the cloud may be provided with respect to the area of the solar panel, and the irradiation rate or the power generation efficiency may be calculated to be lower as the area covered by the cloud is larger.

  (6) The image that is processed by each power calculation unit does not have to be a single image. In a corresponding small area, for example, when the installation range of the solar panel power generation facility is wide, or when the installation position is far away, a plurality of images may be processed. In addition, an image other than the satellite image may be used as long as the area of the solar panel in the small area can be calculated and a cloud image can be extracted. For example, the image may be an image from the sky such as an aerial photograph or an image captured by a camera installed at a high place. That is, the clear sky satellite image storage unit, the current satellite image storage unit, and the past satellite image storage unit may be configured as a clear sky image storage unit, a current image storage unit, and a past satellite image storage unit.

  In addition, considering that solar panel power generation equipment is frequently installed and removed, it is desirable that the satellite image in fine weather is as new as possible. For this reason, it is desirable that the satellite image at the time of fine weather is also updated according to a reference (period etc.) set in the setting storage unit in advance. In addition, for example, when it is determined that it is a fine weather, and when it is determined that the weather is fine, based on weather data input from the outside via a transmission / reception unit connected to a communication network It is also conceivable to provide an image requesting unit or the like that requests acquisition of a satellite image in fine weather via the transmission / reception unit. In addition, for example, the image currently stored in the satellite image storage unit is selected according to the conditions (time, sunny weather, etc.) stored in advance in the setting storage unit, and stored in the clear sky satellite image storage unit as an image in fine weather. It may be set to be.

  Moreover, in said embodiment, the image for extracting a solar panel was made into the image at the time of fine weather. However, if the area of the solar panel can be extracted, the image does not necessarily have to be clear. For example, the image may be an image in which no cloud is applied to the solar panel, or an image in which there is no problem in grasping the area of the solar panel even if the cloud is applied. That is, the clear sky satellite image storage unit may be configured as an image storage unit that images a solar panel.

  (7) In the above embodiment, the power generation efficiency is used as the prescribed information, but other information may be used. For example, when information such as an installation angle exists, the relationship between the irradiation angle of sunlight and the installation angle may be used for calculating the irradiation rate. An installation angle estimation unit that estimates the installation angle from the shape of the solar panel image extracted from the satellite image may be provided, and the installation angle may be used as described above. The installation angle may be used for conversion from the captured shape of the solar panel to the original shape.

  (8) Each processing unit, storage unit, and the like described above may be realized by a common computer or may be realized by a plurality of computers connected by a communication network. For example, any one of the power calculation unit and the power control unit may be realized by a common computer. Any of the calculation units, prediction units, and the like by the arithmetic processing unit may be configured by separate computers, and the processes may be performed in parallel. In a plurality of power calculation devices, a common database may be used as the storage unit.

  (9) The communication network includes a wide range of transmission paths through which information can be exchanged. As the transmission path, any wired or wireless transmission medium can be applied, and it does not matter what kind of LAN or WAN is used. Any communication protocol that can be used at present or in the future can be applied.

  (10) When each part is realized as a circuit, various configurations such as an ASIC that implements each function, an IC chip such as a CPU, or other peripheral circuits, or a system LSI that integrates a plurality of functions are conceivable. It is a thing and is not limited to a specific thing.

  (11) The specific contents and values of the information used in the embodiment are free and are not limited to specific contents and numerical values. In the embodiment, in the magnitude determination for the value (for example, a threshold value used for the image extraction criterion, etc.), the determination of coincidence / mismatch, etc., as described above, it is determined to include the value as follows, You can decide not to include it. Therefore, for example, depending on the value setting, even if “more than” is read as “greater than” and “less than” is changed to “less than”, it is substantially the same.

  (12) Although several embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 1 ... Power generation equipment control apparatus 10 ... Electric power calculating part 20 ... Electric power control part 21 ... Generated electric power total process part 21a ... Area identification part 21b ... Electric power total part 100 ... Memory | storage part 110 ... Fine weather satellite image memory | storage part 130 ... Current satellite image Storage unit 200 ... arithmetic processing unit 210 ... solar panel image calculation unit 211 ... solar panel image extraction unit 212 ... solar panel area integration unit 221 ... irradiation angle calculation unit 222 ... cloud image extraction unit 223 ... transmittance calculation unit 224 ... irradiation rate calculation unit 230 ... solar panel power generation efficiency calculation unit 250 ... prediction unit 251 ... cloud change information generation unit 252 ... prediction satellite image generation unit 400 ... output unit 300 ... input unit

Claims (12)

An image storage unit for storing an image of a solar panel in a predetermined area;
Based on the image stored in the image storage unit, a solar panel area calculation unit that calculates the area of the solar panel installed in a predetermined area;
Based on the area of the solar panel calculated by the solar panel area calculator, a solar panel generated power calculator that calculates the generated power of the solar panel;
Based on the generated power of the solar panel calculated by the solar panel generated power calculation unit, a power control unit that controls the generated power of the power generation facility other than the solar panel;
A power generation equipment control device comprising: The solar panel area calculation unit
A solar panel image extraction unit for extracting a solar panel image from the image;
Based on the solar panel image extracted by the solar panel image extraction unit, a solar panel area integration unit that integrates the area of the solar panel;
The power generation equipment control device according to claim 1, comprising: A solar light irradiation rate calculating unit for calculating the solar light irradiation rate;
A solar panel power generation efficiency calculation unit that calculates the power generation efficiency of the solar panel based on the solar light irradiation rate calculated by the solar light irradiation rate calculation unit,
The power generation equipment control device according to claim 1 or 2, characterized by comprising: A time data storage unit for storing time data;
A current image storage unit storing a current image corresponding to the predetermined area;
Have
The solar irradiation rate calculation unit
An irradiation angle calculation unit that calculates an irradiation angle of sunlight based on the time data;
A cloud image extraction unit for extracting a cloud image from the current image stored in the current image storage unit;
Based on the cloud image extracted by the cloud image extraction unit, a transmittance calculation unit for calculating the transmittance of sunlight,
Based on the transmittance calculated by the transmittance calculating unit, an irradiation rate calculating unit that calculates the irradiation rate of sunlight,
The power generation equipment control device according to claim 3, wherein: A time data storage unit for storing time data;
A current image storage unit storing a current image corresponding to the predetermined area;
A past image storage unit that stores past images corresponding to the predetermined area;
A cloud image extraction unit that extracts a cloud image from a current image stored in the current image storage unit and a past image stored in the past image storage unit;
Based on the cloud image extracted by the cloud image extraction unit, a cloud change information generation unit that generates cloud change information;
Based on the change information generated by the cloud change information generation unit, a predicted image generation unit that generates an image predicted in the future;
A transmittance calculating unit that calculates the transmittance of sunlight based on the cloud image extracted by the cloud image extracting unit from the predicted image generated by the predicted image generating unit;
Based on the transmittance calculated by the transmittance calculating unit, an irradiation rate calculating unit that calculates the irradiation rate of sunlight,
The power generation equipment control device according to claim 3, wherein: The power control unit
A region identifying unit that identifies which generated power calculated by the solar panel generated power calculating unit is related to which of the power generation facilities to be controlled; and
Based on the identification result by the region identification unit, for each region related to the power generation equipment to be controlled, a power total unit that sums the generated power,
The power generation equipment control device according to claim 1 or 2, characterized by comprising: A computer or electronic circuit
An image storage process for storing an image of a solar panel in a predetermined area;
A solar panel area calculation process for calculating an area of a solar panel installed in a predetermined area based on the image stored by the image storage process;
Based on the area of the solar panel calculated by the solar panel area calculation process, the solar panel generated power calculation process for calculating the generated power of the solar panel;
Based on the generated power of the solar panel calculated by the solar panel generated power calculation process, a power control process for controlling the generated power of the power generation facility other than the solar panel;
The power generation equipment control method characterized by performing. The solar panel area calculation process
A solar panel image extraction process for extracting a solar panel image from the image;
Based on the solar panel image extracted by the solar panel image extraction process, a solar panel area integration process for integrating the area of the solar panel;
The power generation equipment control method according to claim 7, further comprising: On the computer,
An image storage process for storing an image of a solar panel in a predetermined area;
A solar panel area calculation process for calculating an area of a solar panel installed in a predetermined area based on the image stored by the image storage process;
Based on the area of the solar panel calculated by the solar panel area calculation process, the solar panel generated power calculation process for calculating the generated power of the solar panel;
Based on the generated power of the solar panel calculated by the solar panel generated power calculation process, a power control process for controlling the generated power of the power generation facility other than the solar panel;
A power generation equipment control program characterized in that The solar panel area calculation process
In the computer,
A solar panel image extraction process for extracting a solar panel image from the image;
Based on the solar panel image extracted by the solar panel image extraction process, a solar panel area integration process for integrating the area of the solar panel;
The power generation facility control program according to claim 9, wherein: An image storage unit for storing an image of a solar panel in a predetermined area;
Based on the image stored in the image storage unit, a solar panel area calculation unit that calculates the area of the solar panel installed in a predetermined area;
Based on the area of the solar panel calculated by the solar panel area calculator, a solar panel generated power calculator that calculates the generated power of the solar panel;
A power calculation device comprising: In the power control device that controls the generated power of the power generation facility,
An area identification unit for identifying which of the power generation facilities to be controlled is based on the generated power of the solar panel in a predetermined area input from the outside,
Based on the identification result by the region identification unit, for each region related to the power generation equipment to be controlled, a power total unit that sums the generated power,
A power control apparatus comprising:

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