JP6005318B2 - Power generation amount evaluation apparatus, power generation amount evaluation method, and power generation amount evaluation program - Google Patents

Description

The present invention relates to a power generation amount evaluation apparatus, a power generation amount evaluation method, and a power generation amount evaluation program.

  In recent years, photovoltaic power generation using sunlight has attracted attention as clean energy with a low environmental load. For solar power generation, large-scale solar power plants that have a large number of solar panels installed on a vast site and generate an output of more than 1 megawatt, so-called mega solar, have been put into practical use in various places. Yes.

  The amount of power generated by solar power plants, including mega solar, varies from power plant to power plant due to different site conditions, natural conditions, solar panel types, manufacturers, and quantities. Therefore, in order to determine whether or not to invest in a solar power plant, it is necessary to calculate the power generation amount during the long-term power plant operation as accurately as possible. In order to solve such a problem, a technique for calculating the predicted operation rate and the predicted power generation amount of the solar power plant from the weather information of the location of the solar power plant and quality information including information on failure and deterioration is disclosed. (See Patent Document 1).

JP 2012-234335 A

  However, in the technique described in Patent Document 1, since the predicted operation rate and the predicted power generation amount of the solar power plant are calculated based on the quality information of only the solar power plant for which the power generation amount is calculated, There has been a problem that it is not possible to accurately calculate the predicted operation rate and the predicted power generation amount of a power plant that has not started. Further, since the predicted operation rate and the predicted power generation amount are calculated based on the quality information of only the target power plant, there is a problem that an appropriate power generation amount cannot be calculated when an unexpected situation such as an initial failure occurs.

  In addition, banks and investors who have invested heavily in solar power plants want to evaluate whether the amount of power generated at solar power plants that are already in operation is appropriate. There was a growing demand.

  The present invention has been made in view of the above, and is a power generation amount calculation device, a power generation amount calculation method, and a power generation amount calculation program capable of more accurately calculating a future power generation amount generated at a solar power plant, An object of the present invention is to provide a power generation amount evaluation apparatus, a power generation amount evaluation method, and a power generation amount evaluation program capable of evaluating the power generation amount at a solar power plant that has already started operation.

  In order to solve the above-described problem, in the present invention, a power plant name for identifying a power plant and power generation information for each operation year are stored in association with each other, and the power plant name and one or more power plants are stored. The item to be characterized is stored in association with each other, the input of the power plant name and the calculation period indicating the period for calculating the power generation amount is received, the input of the item to be stored in the power plant information storage means is received, and the item of the received item A power plant name whose value matches the item value associated with the power plant name accepted by the power plant accepting means is obtained from the power plant information storage means, and the power generation information associated with the obtained power plant name is used. The power generation amount during the calculation period is calculated, and the calculated power generation amount is displayed.

  In another aspect of the present invention, the power plant name and the power generation amount per unit time are received, the power generation information is calculated from the received power plant name and the power generation amount per unit time, and is associated with the power plant name. The power generation information is stored in a power generation information storage means.

  In another aspect of the present invention, the planned power generation amount is calculated using the power generation information for each predetermined operation period, the calculated planned power generation amount is compared with the actual power generation amount stored in the actual power generation information storage unit, The actual power generation amount that matches a predetermined standard for the power generation amount is extracted, the actual power generation amount stored in the actual power generation information storage means, the planned power generation amount calculated by the power generation amount calculation means, and the actual power generation amount comparison means The amount of power generation is displayed.

  Further, in another aspect of the present invention, a corrected power generation amount obtained by calculating the planned power generation amount using the power generation information for each predetermined operation period, and correcting the calculated planned power generation amount with the solar radiation amount stored in the actual power generation information storage means. The calculated corrected power generation amount is compared with the actual power generation amount stored in the actual power generation information storage means, and the actual power generation amount that matches the predetermined standard with respect to the corrected power generation amount is extracted and stored in the actual power generation information storage means. The actual power generation amount to be stored, the corrected power generation amount calculated by the power generation amount calculation means, and the actual power generation amount extracted by the power generation amount comparison means are displayed.

  Further, in another aspect of the present invention, the power plant name that matches the item value associated with the item characterizing the evaluation power plant that is the power plant to be evaluated is acquired from the power plant information storage means, and the acquired power plant A corrected power generation amount obtained by correcting the power generation amount calculated using the power generation information associated with the name with the solar radiation amount stored in the actual power generation information storage unit is calculated, and the calculated corrected power generation amount and the actual power generation information storage unit are calculated. Compare the actual power generation amount to be stored, extract the actual power generation amount that matches the predetermined standard for the corrected power generation amount, and store the actual power generation amount stored in the actual power generation information storage unit and the corrected power generation amount calculated by the power generation amount calculation unit And the actual power generation amount extracted by the power generation amount comparison means.

  According to the present invention configured as described above, a power plant name whose item value matches the item value associated with the power plant name received by the power plant accepting unit is acquired from the power plant information storage unit. The power generation information associated with the acquired power plant name can be used to calculate the power generation amount for the calculation period, so that the future power generation amount generated at the power plant can be calculated more accurately. Play.

  Further, according to the present invention configured as described above, the power plant name and the power generation amount per unit time are received, the power generation information is calculated from the received power plant name and the power generation amount per unit time, and the power plant name Since the power generation information can be stored in the power generation information storage unit in association with the power generation information, information on power generation can be collected from many power plants.

  Further, according to the present invention configured as described above, the planned power generation amount is compared with the actual power generation amount stored in the actual power generation information storage unit, and the actual power generation amount that matches the predetermined standard with respect to the planned power generation amount is extracted. Therefore, it is possible to evaluate the amount of power generation at a power plant that has already started operation.

  Further, according to the present invention configured as described above, the corrected power generation amount obtained by correcting the planned power generation amount with the solar radiation amount stored in the actual power generation information storage unit is calculated, and the calculated corrected power generation amount and the actual power generation information storage are calculated. By comparing the actual power generation amount stored in the means and extracting the actual power generation amount that matches the predetermined standard with respect to the corrected power generation amount, the power generation amount at the power plant that has started operation is changed to the actual weather. The effect that it can evaluate according to it is produced.

  Further, according to the present invention configured as described above, the power plant name that matches the item value associated with the item that characterizes the power plant to be evaluated is obtained from the power plant information storage means, A corrected power generation amount obtained by correcting the power generation amount calculated using the power generation information associated with the acquired power plant name with the amount of solar radiation stored in the actual power generation information storage means is calculated. Compare the actual power generation amount stored in the information storage means and extract the actual power generation amount that meets the predetermined standard for the corrected power generation amount. The effect is that it can be evaluated according to the characteristics of the place and the actual weather.

It is a block diagram which shows the structure of the solar energy generation amount calculation system 10 concerning Example 1. FIG. It is explanatory drawing which shows an example of a data structure of the electric power generation information storage part. It is explanatory drawing which shows an example of a data structure of the power plant information storage part. 4 is an explanatory diagram illustrating an example of a data configuration of a design information storage unit 130. FIG. It is a flowchart which shows the electric power generation amount calculation process procedure which the electric power generation amount calculation apparatus 100 performs. It is a flowchart which shows the electric power generation information storage process procedure which the electric power generation amount calculation apparatus 100 performs. It is a block diagram which shows the structure of the solar energy generation amount evaluation system 20 concerning Example 2. FIG. It is a flowchart which shows the electric power generation amount evaluation process sequence which the electric power generation amount evaluation apparatus 400 performs. It is explanatory drawing which shows an example of the graph of the plan electric power generation amount of the operation period of an evaluation power plant, and an actual power generation amount. It is explanatory drawing which shows an example of the correction | amendment electric power generation amount of the operation period of an evaluation power plant, and a performance electric power generation amount. It is explanatory drawing which shows an example of the graph of the correction | amendment electric power generation amount and the actual electric power generation amount of the evaluation power plant for every month of a certain operation year.

  Embodiments of the present invention will be described below with reference to the accompanying drawings. In addition, the following description is an example of embodiment and this invention is not limited to these Examples.

  FIG. 1 is a block diagram illustrating a configuration of a photovoltaic power generation amount calculation system 10 according to the first embodiment. As shown in FIG. 1, a photovoltaic power generation amount calculation system 10 enables communication between a power generation amount calculation device 100 and a remote monitoring device 200 via a communication network 1 such as the Internet, an intranet, a mobile communication network, a dedicated line. Connecting. The remote monitoring device 200 is further communicably connected to the photovoltaic power plant 300 via a communication network. In FIG. 1, for ease of explanation, one remote monitoring device 200 and one solar power plant 300 are shown, but a plurality of devices may actually be connected.

  The power generation amount calculation device 100 generates and stores power generation information for each power plant from the measured value of the facility of the solar power plant 300 transmitted via the remote monitoring device 200, and generates power based on the stored power generation information. This is an information processing device that calculates the amount. Note that the power generation amount calculation device 100 does not have to be configured by a single device, and may be realized by dividing functions and data and sharing them by a plurality of devices.

  When the remote monitoring device 200 is connected to the facilities of the solar power plant 300 via a communication network, receives the measurement values measured by each facility of the solar power plant 300, and determines an abnormality from the received measurement values It is an information processing device that issues an alarm. The solar power plant 300 is a power generation facility that uses sunlight, a solar cell panel that converts solar light energy into DC power, and a power conditioner (hereinafter referred to as DC power) that converts DC power generated by the solar cell panel into AC power. PCS), a junction box that aggregates the power generated by the solar panel and transmits it to the PCS, boosts the AC power converted by the PCS to the grid voltage of the power company, and supplies it to the high-voltage grid power line of the power company Each equipment such as receiving and transforming equipment is provided.

  The function and configuration of the power generation amount calculation apparatus 100 will be described. The power generation amount calculation device 100 includes a power generation information storage unit 110, a power plant information storage unit 120, a design information storage unit 130, a transmission / reception unit 101, an input unit 102, a power generation information calculation unit 103, a power generation amount calculation unit 104, and a display unit 105. Prepare.

  FIG. 2 is an explanatory diagram illustrating an example of a data configuration of the power generation information storage unit 110. The power generation information storage unit 110 stores information related to power generation in each year for each photovoltaic power plant. Specifically, the power generation information storage unit 110 associates the power plant name with the power generation information for each operating year for calculating the power generation amount (more specifically, the facility utilization rate for each operating year). Remember. In addition to the equipment usage rate for each operating year, the equipment usage rate for each month and the equipment usage rate for each day of each month may be stored.

  Here, the annual facility utilization rate is the ratio of the actual power generation amount to the power generation amount when the photovoltaic power plant generates power all the time of one year. The annual capacity factor is calculated using the following formula.

  Annual capacity factor (%) = [Actual annual power generation (kW) ÷ (Rated output × 365 days × 24 hours)] × 100

  FIG. 3 is an explanatory diagram illustrating an example of a data configuration of the power plant information storage unit 120. The power plant information storage unit 120 stores information regarding the solar power plant. Specifically, the power plant information storage unit 120 stores a power plant name and an item characterizing the power plant in association with each other. The items that characterize the power plant are, specifically, the amount of power generation, the start date of operation, the type of solar cell panel, the manufacturer / solar cell panel model number, the construction company that installed the power plant, and the maintenance operation company. In addition, since there are many power plants that have started operation in recent years and the movement period is short, there are not many data on the aging deterioration rate of solar cell panels and the power plant equipment utilization rate based on actual measurement values. Therefore, it is not very clear what kind of data the facility utilization rate correlates with. Based on this, the data structure of the power plant information storage unit 120 may not be fixed, but items may be added and deleted after the fact.

  FIG. 4 is an explanatory diagram illustrating an example of a data configuration of the design information storage unit 130. The design information storage unit 130 stores power generation information based on design values by the solar cell panel manufacturer. Specifically, the design information storage unit 130 stores the manufacturer / solar cell panel model number in association with the facility utilization rate calculated based on the design value by the solar cell panel manufacturer for each operating year. In addition to the equipment usage rate for each operating year, the equipment usage rate for each month and the equipment usage rate for each day of each month may be stored.

  The transmission / reception unit 101 receives data transmitted from the remote monitoring device 200. The data transmitted from the remote monitoring device 200 includes a power plant name that identifies the solar power plant 300 and a power generation amount per unit time. The amount of power generation per unit time measured at the solar power plant 300 may be received in real time or for each set period. Note that the above-described data may be received directly from the solar power plant 300 without using the remote monitoring device 200.

  The input unit 102 receives an input of a calculation period indicating a name of a power plant that is a target for calculating a power generation amount and a period for calculating the power generation amount. Further, the input unit 102 receives an input of the power generation amount per unit time that is not connected through the communication network 1 and accumulated in the solar power plant. The input unit 102 receives input of an item for selecting a power plant to be referred to when calculating the power generation amount.

  The power generation information calculation unit 103 generates power generation information for each power plant from the power plant name received from the transmission / reception unit 101 or the input unit 102 and the power generation amount per unit time. The power generation information referred to here is a facility usage rate for each day of each year, each month, and each month from the start of operation.

  The power generation amount calculation unit 104 refers to the power generation information for each power plant stored in the power generation information storage unit 110, and calculates the power generation amount of a power plant that calculates the power generation amount (hereinafter referred to as a target power plant). Specifically, the power generation amount calculation unit 104 acquires the power generation information of the power plant that matches the item value of one or more items selected by the input unit 102, and uses the acquired power generation information to generate the power generation amount for the calculation period. Is calculated. When calculating the power generation amount, if there is a difference in the weather / temperature, latitude / longitude, solar radiation, etc. between the target power plant and the power plant that refers to the power generation information (hereinafter referred to as the reference power plant), You may correct | amend by temperature, the latitude longitude, and the amount of solar radiation.

  The display unit 105 displays the power generation amount for the calculation period calculated by the power generation amount calculation unit 104 on the display screen.

  A power generation amount calculation process executed by the power generation amount calculation apparatus 100 configured as described above will be described. FIG. 5 is a flowchart showing a power generation amount calculation processing procedure executed by the power generation amount calculation apparatus 100.

  The input unit 102 receives the input of the power plant name and calculation period of the target power plant (step S501). The calculation period may be input such as 20 years from the start date (or any date) in addition to the start date and end date. The input unit 102 accepts input of an item for selecting a reference power plant from among items stored in the power plant information storage unit 120 (step S502). Thereby, while the number of photovoltaic power plants stored in the power generation information storage unit 110 is small, for example, the number of photovoltaic power plants has increased with reference to the power generation information of the power plant with the same solar cell panel type. In this case, the power plant can be selected by the manufacturer / solar cell panel model number, which is a more detailed item.

  Moreover, when the data regarding the power generation of the solar power plant is accumulated and a correlation between one or a plurality of items and the power generation amount is found, an item having a new correlation can be selected. When the newly found correlation is a relationship with an item other than an existing item, the item may be selected after adding the new item to the power plant information storage unit 120. The item to be selected may be read from the power plant information storage unit 120.

  The power generation amount calculation unit 104 acquires a power plant name whose item value of the selected item matches the item value of the target power plant from the power plant information storage unit 120 (step S503). The power generation amount calculation unit 104 acquires power generation information associated with the acquired power plant name from the power generation information storage unit 110 (step S504). Specifically, the power generation amount calculation unit 104 acquires, from the power generation information storage unit 110, the facility usage rate for each year of the calculation period associated with the power plant name.

  The power generation amount calculation unit 104 calculates power generation information of the target power plant (step S505). Specifically, the power generation amount calculation unit 104 calculates the average value of the facility usage rate for each operating year in the calculation period using the power generation information of the reference power plant, and sets it as the facility usage rate for each year of the target power plant. . In addition, the facility utilization factor for each year of the existing power plant may be calculated as it is, or may be calculated by weighting the characteristics of each power plant (for example, the range of power generation amount).

  Moreover, the equipment utilization rate of the operation year in which the effective number of power generation information of a reference power plant does not exist acquires the equipment operation rate for every operation year according to a manufacturer and a solar cell panel model number from the design information storage part 130. FIG. Alternatively, the equipment utilization rate calculated from the reference power plant may be graphed to obtain an approximate curve, and the equipment utilization rate calculated from the obtained approximate curve may be used.

  The power generation amount calculation unit 104 calculates the power generation amount for each year and the total power generation amount for the calculation period (step S506). Specifically, the power generation amount calculation unit 104 calculates the power generation amount from the facility utilization rate and the rated output for each year of the target power plant, and further adds the power generation amount for each year to calculate the total power generation amount for the calculation period. . The power generation amount may be calculated by using the facility utilization rate for each month of the operating year, and calculating the power generation amount for each month by adding the power generation amount for each month. . The amount of power generation is calculated by using the facility utilization rate for each day of each month of the operation year, and calculating the amount of power generation for each month by adding the amount of power generation for each day. May be. The display unit 105 displays the power generation amount for each year and the total power generation amount for the calculation period on the display screen (step S507). The power generation amount of each year and the total power generation amount during the power generation amount calculation period may be displayed in a graph together with a numerical value.

  Next, power generation information storage processing executed by the power generation amount calculation apparatus 100 will be described. FIG. 6 is a flowchart showing a power generation information storage processing procedure executed by the power generation amount calculation apparatus 100.

  The transmission / reception unit 101 receives the power plant name and the power generation amount per unit time transmitted from the remote monitoring device 200 (step S601). The data of the solar power plant 300 transmitted via the remote monitoring device 200 may include the amount of solar radiation and the temperature in addition to the data described above.

  The power generation information calculation unit 103 calculates the power generation information for each power plant, specifically, the facility utilization rate for each year from the received power plant name and the amount of power generated per unit time (step S602). As the equipment usage rate, in addition to the annual equipment usage rate, the equipment usage rate for each month and the equipment usage rate for each day of each month may be calculated. The power generation information calculation unit 103 stores the calculated power generation information, specifically, the facility usage rate for each year in the power generation information storage unit 110 in association with the power plant name (step S603).

  In this way, the power generation amount calculated from the existing power plant, that is, the annual facility utilization rate (and the monthly facility utilization rate, the monthly facility utilization rate), the power generation amount of the target power plant Therefore, it is possible to calculate the power generation amount that is closer to the actual measurement value than the power generation amount based on the design value. Thereby, a more accurate power generation amount can be calculated.

  In addition, the more power generation information of a power plant that is actually in operation, the more power plant data that can be referred to will be accumulated, which will be less affected by a few unique cases and provided by the manufacturer. Since the measured value is closer to the actually measured value than the design value or the assumed value, the power generation amount of the solar power plant can be calculated more accurately. In addition, since it is possible to select which item's item value matches the power generation information of the power plant, various data will be accumulated in the future, and the correlation found by analyzing the accumulated data will be Power generation information of the power plant based can be used. As a result, the power generation amount can be calculated more accurately.

  In the present embodiment, a construction company and a maintenance company are items in the power plant information storage unit 120. This is because the facility utilization rate of the solar power plant affects the operation time depending on the presence or absence of construction defects according to the construction technology of the construction company and the quality of operation management and maintenance inspection work of the maintenance operation company. This is because there is a difference between the two. By selecting such items and calculating the power generation amount, it is possible to reflect the construction technology and the quality of operation management / maintenance inspection work in the power generation amount.

  In the above-described embodiment, the facility utilization rate is used as the power generation information, but other numerical values, for example, an operation rate may be used instead of the facility utilization rate. The operating rate is determined based on whether or not the photovoltaic power plant 300 is operating at a predetermined time from the amount of solar radiation and power generation amount transmitted from the remote monitoring device 200, and the determined operating time (for example, solar radiation amount). The operation rate is calculated from the ratio of the operation time (for example, the time when the power generation amount is a predetermined amount or more).

  In the first embodiment described above, the process of calculating the power generation amount of the solar power plant based on the actual values at various power plants accumulated so far when the solar power plant is newly operated has been described. Next, the power generation amount evaluation apparatus, the power generation amount evaluation method, and the power generation amount evaluation program for evaluating the past power generation amount results and the future power generation amount prediction at a solar power plant that has already started operation will be described. .

  FIG. 7 is a block diagram of the configuration of the photovoltaic power generation amount evaluation system 20 according to the second embodiment. As illustrated in FIG. 7, the photovoltaic power generation amount evaluation system 20 connects the power generation amount evaluation device 400 and the remote monitoring device 200 via the communication network 1 so that they can communicate with each other.

  The power generation amount evaluation apparatus 400 is based on the measured values accumulated and measured at the solar power plant to be evaluated (hereinafter referred to as evaluation power plant), the actual power generation amount and the planned power generation amount, the actual power generation amount and the solar radiation amount, and the like. It is the information processing apparatus which compares and evaluates the power generation amount corrected by the power generation information. Note that the power generation amount evaluation apparatus 400 does not have to be configured by one apparatus, and may be realized by dividing functions and data and sharing the functions by a plurality of apparatuses.

  The function and configuration of the power generation amount evaluation apparatus 400 will be described. The power generation amount evaluation apparatus 400 includes a power generation information storage unit 110, a power plant information storage unit 120, a design information storage unit 130, an actual power generation information storage unit 440, a planned power generation information storage unit 450, a transmission / reception unit 101, an input unit 102, and power generation information. A calculation unit 103, a power generation amount calculation unit 404, a display unit 105, and a power generation amount comparison unit 406 are provided. Among the units included in the power generation amount evaluation apparatus 400, those having the same numbers as the units of the power generation amount calculation apparatus 100 of the first embodiment described above have substantially the same functions and configurations. The description in is omitted. In FIG. 7, it is complicated to describe all the arrows indicating the data flow of each unit, and therefore, the description is omitted.

  The actual power generation information storage unit 440 stores measurement values measured at the evaluation power plant. As an example, the actual power generation information storage unit 440 generates power for each predetermined operating period of the entire photovoltaic power plant, specifically, for each year of each operating period, for each month, and for each day of each month, for each hour. , Remember the amount of solar radiation. Further, as the actual power generation information, more detailed power generation amount for each predetermined structural unit (for example, power generation amount for each PCS, for each string, for each array, for each solar panel, for each cell, etc.) is available. If available, store the available data.

  Here, the power generation amount for each PCS is the power generation amount generated by the solar cell panel managed by one PCS. A cell is a solar cell element itself and is a basic unit of a solar cell. A solar cell panel is a cell in which cells are arranged and protected by tempered glass or the like so that they can be used outdoors. A string refers to a single unit in which solar cell panels are connected in series. An array is a plurality of solar cell panels connected in series and / or in parallel.

  The planned power generation information storage unit 450 stores the facility utilization rate for each operation year, each month of the operation year, and each day of each month that was originally planned at the evaluation power plant. Each facility utilization rate includes the estimated amount of solar radiation for each year, month, and day, and a decrease in power generation due to aging of the facility, etc. It is a value calculated assuming a decrease in.

  The power generation amount calculation unit 404 calculates the planned power generation amount and the corrected power generation amount in addition to the function of the power generation amount calculation unit 104 of the first embodiment. The planned power generation amount is the power generation amount during the operation period of the evaluation power plant calculated using the facility utilization rate for each operating year, each month of the operating year, and each day of each month stored in the planned power generation information storage unit 450. This is the power generation amount of the evaluation power plant that was assumed at the start of operation. The corrected power generation amount is the amount of solar radiation measured at the evaluation power plant using the planned power generation amount calculated using the facility utilization rate for each operating year, each month of the operating year, and each day of each month stored in the planned power generation information storage unit 450. This is the power generation amount calculated by correcting the amount, and is the power generation amount to be generated at the evaluation power plant taking into account the past weather. In addition, the corrected power generation amount is obtained from the power generation information storage unit 110 for the power plant utilization rate that matches the item value that characterizes the evaluation power plant, and the power generation amount calculated using the acquired facility utilization rate is calculated at the evaluation power plant. It may be a power generation amount that is calculated by correcting with the measured amount of solar radiation, and may be a power generation amount that should be generated at the evaluation power plant in consideration of the characteristics of the evaluation power plant in the past weather.

  Further, the power generation amount calculation unit 404 predicts the evaluation power plant from the actual operation year to the end of the planned operation based on the actual power generation amount of each year in which the evaluation power plant actually operates (hereinafter referred to as the actual operation year). Calculate power generation. For example, the power generation amount calculation unit 404 calculates the predicted power generation amount by various known methods such as graphing the actual power generation amount of each actual operation year and calculating the predicted power generation amount using an approximate curve.

  The power generation amount comparison unit 406 compares the actual power generation amount and the planned power generation amount of the evaluation power plant every actual operation year, every actual operation month, and every actual operation day. More specifically, the power generation amount comparison unit 406 determines that the actual power generation amount is equal to or less than the planned power generation amount, or the actual power generation amount is equal to or less than a predetermined reference from the planned power generation amount (for example, the actual power generation amount is 80% or less of the planned power generation amount). The actual power generation amount that matches a predetermined standard with respect to the planned power generation amount is extracted.

  The power generation amount comparison unit 406 compares the actual power generation amount of the evaluation power plant with the corrected power generation amount calculated by the power generation amount calculation unit 404 for each actual operation year, each actual operation month, and each actual operation day. The actual power generation amount that meets the predetermined criteria is extracted. Furthermore, when the power generation amount for each predetermined structural unit is acquired as the actual power generation information, each planned power generation amount or the corrected power generation amount is compared, and the actual power generation amount that meets a predetermined standard is extracted.

  The power generation amount evaluation process executed by the power generation amount evaluation apparatus 400 configured as described above will be described. FIG. 8 is a flowchart showing a power generation amount evaluation processing procedure executed by the power generation amount evaluation apparatus 400.

The input unit 102 receives input of the power plant name of the evaluation power plant, item values for each item stored in the power plant information storage unit 120, actual power generation information, and planned power generation information (step S801). The input unit 102 stores the power plant name and the item value for each item in the power plant information storage unit 120. The input unit 102 stores the actual power generation information in the actual power generation information storage unit 440 and the planned power generation information in the planned power generation information storage unit 450. The power generation amount calculation unit 404 calculates the actual power generation amount for each actual operation year (the actual operation month and the actual operation day) and the predicted power generation amount after the actual operation year (step S802). Specifically, the power generation amount calculation unit 404 acquires the actual power generation amount for each of the actual operation years (the actual operation month and the actual operation day) of the evaluation power plant, which is stored in the actual power generation information storage unit 440. The power generation amount calculation unit 404 further graphs the actual power generation amount of each actual operation year, generates an approximate curve from the actual power generation value, and calculates the predicted power generation amount after the actual operation year from the generated approximate curve.

  The power generation amount calculation unit 404 calculates the planned power generation amount from the facility usage rate for each operation year stored in the planned power generation information storage unit 450 (step S803). The power generation amount comparison unit 406 compares the planned power generation amount with the actual power generation amount (step S804). More specifically, the power generation amount comparison unit 406 compares the planned power generation amount for each operation year with the actual power generation amount for each actual operation year corresponding to the operation year, and the actual power generation amount is less than the planned power generation amount or the actual power generation amount. The actual power generation amount that matches the predetermined standard with respect to the planned power generation amount, such as the power generation amount equal to or lower than the predetermined standard of the planned power generation amount (for example, 80% or less of the planned power generation amount) is extracted. The display unit 105 displays the extracted actual power generation amount, which is a comparison result between the planned power generation amount, the actual power generation amount + the predicted power generation amount, the planned power generation amount and the actual power generation amount for each operation year (step S805).

  FIG. 9 is an explanatory diagram illustrating an example of a graph of the planned power generation amount and the actual power generation amount during the operation period of the evaluation power plant. The display screen 11 displays the planned power generation amount, the actual power generation amount + the predicted power generation amount, and the comparison result between the planned power generation amount and the actual power generation amount for each operating year in the operation period of the evaluation power plant name “X power plant”. The planned power generation amount 12 is the planned power generation amount obtained from the facility operation rate for each operation year stored in the planned power generation information storage unit 450. The actual power generation amount 13 is the actual power generation amount for each year acquired from the actual power generation information storage unit 440. The comparison result 14 indicates the actual power generation amount that matches a predetermined standard with respect to the planned power generation amount. In this way, by clearly indicating the actual power generation amount that meets the predetermined standard with respect to the planned power generation amount, it is possible to easily determine an operation year in which there may be a problem with power generation. The predicted power generation amount 15 is a power generation amount predicted from the actual power generation amount. The total power generation amount 16 is the sum of the planned power generation amount for each operation year in the operation period (for example, 20 years), the total amount of actual power generation for each actual operation year, and the predicted power generation amount from the actual operation year to the end of the operation period. Indicates.

  The power generation amount calculation unit 404 calculates the corrected power generation amount for each of the actual operation years (the actual operation month and the actual operation day) (step S806). More specifically, the power generation amount calculation unit 404 calculates a corrected power generation amount for each actual operation year by correcting the planned power generation amount calculated by the facility operation rate of the operation year with the solar radiation amount of the corresponding actual operation year. . In addition, the power generation amount calculation unit 404 calculates a corrected power generation amount for each actual operation month obtained by correcting the planned power generation amount calculated based on the facility operation rate in the operation month with the solar radiation amount of the corresponding actual operation month. The power generation amount calculation unit 404 calculates a corrected power generation amount for each actual operation day obtained by correcting the planned power generation amount calculated based on the facility operation rate on the operation day with the solar radiation amount on the actual operation day. As another corrected power generation amount calculation method, the power generation information of one or a plurality of power plants that match some of the item values of the evaluation power plant is acquired from the power generation information storage unit 110, and the facility operation that is the acquired power generation information The power generation amount is calculated using the rate, and the corrected power generation amount is calculated by correcting the calculated power generation amount with the corresponding solar radiation amount. By these, since the equipment operation rate calculated from the actual measurement value can be used rather than the equipment operation rate at the time of the initial planning, it is possible to calculate the corrected power generation amount more suitable for the current situation. Further, by using the facility operation rate of the power plant that matches one or more item values, the corrected power generation amount can be calculated with the facility operation rate that matches the characteristics of the evaluation power plant.

  The power generation amount comparison unit 406 compares the corrected power generation amount with the actual power generation amount (step S807). More specifically, the power generation amount comparison unit 406 compares the corrected power generation amount for each operation year with the actual power generation amount in the actual operation year corresponding to the operation year, and the actual power generation amount is equal to or less than the corrected power generation amount or the actual power generation. An actual power generation amount that matches a predetermined standard with respect to the corrected power generation amount, such as an amount that is equal to or less than a predetermined standard of the corrected power generation amount (for example, 80% or less of the corrected power generation amount) is extracted. Further, the power generation amount comparison unit 406 compares the corrected power generation amount with the actual power generation amount in each month and each day in addition to the operation year, and extracts the actual power generation amount that matches a predetermined standard with respect to the corrected power generation amount. The display unit 105 displays the corrected actual power generation amount for each operation year, the actual power generation amount + the predicted power generation amount, and the extracted actual power generation amount that is a comparison result between the corrected power generation amount and the actual power generation amount (step S808).

  FIG. 10 is an explanatory diagram illustrating an example of a graph of the corrected power generation amount and the actual power generation amount during the operation period of the evaluation power plant. The display screen 21 displays the power generation amount for each operation year in the operation period of the evaluation power plant name “X power plant”. The corrected power generation amount 22 is a corrected power generation amount calculated by the power generation amount calculation unit 404. The actual power generation amount 23 is the actual power generation amount of each year acquired from the actual power generation information storage unit 440 as in FIG. The comparison result 24 indicates the actual power generation amount that matches a predetermined standard with respect to the corrected power generation amount. In this way, by clearly indicating the actual power generation amount that matches the predetermined standard with respect to the corrected power generation amount, it is possible to easily determine an operation year in which there may be a problem with the power generation performance. The predicted power generation amount 25 is a power generation amount predicted from the actual power generation amount as in FIG. The total power generation amount 26 is the total of the planned power generation amount for each operation year in the operation period, the total of the actual power generation amount for each actual operation year, the predicted power generation amount from the actual operation year to the end of the operation period, and the total of the corrected power generation amount Indicates.

  FIG. 11 is an explanatory diagram illustrating an example of a graph of the corrected power generation amount and the actual power generation amount of the evaluation power plant for each month of an operation year. The display screen 31 displays the power generation amount for each operation month of “X year” of the evaluation power plant name “X power plant”. The corrected power generation amount 32 is a corrected power generation amount for each month calculated by the power generation amount calculation unit 404. The actual power generation amount 33 is the actual power generation amount for each month of year X acquired from the actual power generation information storage unit 440. The comparison result 34 indicates the actual power generation amount that matches a predetermined standard with respect to the corrected power generation amount. In this way, it is possible to easily determine the operating month in which there may be a problem with the power generation performance by clearly indicating the actual power generation amount that meets the predetermined standard for the corrected power generation amount for each month. it can. The annual power generation amount 35 indicates the planned annual power generation amount, the actual annual power generation amount, and the corrected annual power generation amount of “year X”. Furthermore, for example, a graph of the corrected power generation amount and actual power generation amount for each day in October X, graphs for each PCS, each string, each array, each solar panel, and each cell for each operating year, operating month, and operating day It may be generated and displayed. In addition to displaying with graphs as shown in FIGS. 9, 10, and 11, the operation year (and operation month, operation day), the actual power generation amount, the planned power generation amount, and the corrected power generation amount are listed as a list. The numerical value of the actual power generation amount that meets the above criteria may be displayed in a different color. Furthermore, numerical values may be displayed for each PCS, each string, each array, each solar panel, and each cell.

  As an instruction method for displaying the display screen described above, an operation year, an operation month, and an operation day are input, and contents corresponding to the input are displayed. For example, further details of the operation period in FIG. 10 are confirmed. By indicating the bar graph of the actual power generation amount of “Year X” to be displayed, the graph showing the monthly power generation amount of “Year X” in FIG. 11 is displayed, and the bar graph of the actual power generation amount in October of FIG. By instructing, a graph indicating the power generation amount for each day of October of “Year X” may be displayed. As a result, it is possible to check the monthly power generation amount, which is subdivided in stages after grasping the rough power generation amount for each year of operation, so that the cause and problem of the problem of the evaluation power plant can be found. It becomes easy to do.

  Thus, by comparing and evaluating the actual power generation amount of the evaluation power plant and the corrected power generation amount, the evaluation for the evaluation power plant can be determined based on the actual value. Also, by displaying the actual power generation amount that meets the predetermined criteria for the planned power generation amount and the corrected power generation amount, it is possible to easily recognize the year, month, day, PCS, string, array, solar panel, cell Etc. can be specified. In addition, by matching with the maintenance work report etc., it is possible to clearly grasp the problems and issues of the evaluation power plant.

  As another example, when calculating the corrected power generation amount, the item value corresponding to the item stored in the power plant information storage unit 120 is not matched with the item value of the evaluation power plant, but a different item value is selected. Simulation to calculate the amount of power generation under different conditions from the evaluation power plant For example, by presenting a simulation in which the amount of power generation is increased by changing the maintenance management company or changing the maintenance operation method and conditions, the profit improvement method is presented to the owners and investors of the evaluation power plant together with the grounds It becomes possible.

  In addition, when the information regarding the solar radiation amount of the evaluation power plant cannot be obtained as the actual power generation information of the evaluation power plant, the solar radiation amount of each place provided by the Japan Meteorological Agency is acquired and stored in the actual power generation information storage unit 440. If the location where the JMA provides solar radiation differs from the location of the evaluation power plant, the location closest to the location of the evaluation power plant, the location where the weather is similar in the vicinity of the location of the evaluation power plant, or An average value of a plurality of points in the vicinity of the location of the evaluation power plant may be used.

  In the above-described embodiment, the power plant is evaluated by comparing the actual power generation amount with the planned power generation amount or the corrected power generation amount. However, in addition to the power generation amount, measured values of current and voltage at the evaluation power plant can be obtained. For example, a current or voltage that meets a predetermined standard may be confirmed by comparing with a current or voltage after planning or after correction.

  In the first and second embodiments described above, it is not necessary to limit the power generation facility to the solar power plant, and the above-described processing can be executed if information on the power generation facility can be acquired. Therefore, in addition to the solar power plant, the facility may deteriorate over time, and the power generation amount may change depending on the construction, management, and operation of the facility, for example, a wind power plant, a hydroelectric power plant, and other facilities.

  The hardware configuration of the power generation amount calculation device 100 and the power generation amount evaluation device 400 will be described. The power generation amount calculation device 100 and the power generation amount evaluation device 400 are ordinary computers having a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like, and programs stored in the ROM and the RAM. And the above-described configuration and functions are realized by using data stored in a commonly used storage medium such as an HDD, an optical disk, or a memory card in addition to ROM and RAM.

  A program that operates in the power generation amount calculation device 100 and the power generation amount evaluation device 400 is stored in a computer connected to a network such as the Internet, and can be installed by downloading it via the network. An executable file may be provided by being recorded on a computer-readable recording medium such as a CD-ROM or DVD.

  Further, a request is received from an information terminal device (not shown) that is communicably connected to the power generation amount calculation device 100 and the power generation amount evaluation device 400 via a network such as the Internet, and ASP (Application Service Provider), SaaS (Software as a Service) ), Or cloud computing, the functions described above may be provided as a service.

  Note that the present invention is not limited to the above-described embodiments as they are, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. In addition, a plurality of constituent elements disclosed in the above-described embodiments may be appropriately combined, and some constituent elements may be deleted from the constituent elements shown in the above-described embodiments.

DESCRIPTION OF SYMBOLS 1 ... Network, 10 ... Power generation amount calculation system, 100 ... Power generation amount calculation apparatus, 101 ... Transmission / reception part, 102 ... Input part, 103 ... Power generation information calculation part, 104,404 ... Power generation amount calculation part, 105 ... Display part, 110 ... power generation information storage unit, 120 ... power plant information storage unit, 130 ... design information storage unit, 200 ... remote monitoring device, 300 ... solar power plant, 400 ... power generation amount evaluation device, 406 ... power generation amount comparison unit, 440 ... Actual power generation information storage unit, 450 ... Planned power generation information storage unit

Claims (6)

The actual power generation information storage means for storing the predetermined operation period, the actual power generation amount, and the solar radiation amount in association with each other;
Power generation information storage means for storing a power plant name for identifying a power plant and power generation information for each predetermined operation period in association with each other;
Power plant information storage means for storing the power plant name in association with one or more items characterizing the power plant,
The power plant name that matches the item value of the item that characterizes the power plant to be evaluated is acquired from the power plant information storage means, and the power generation information associated with the acquired power plant name is A power generation amount calculating means for calculating a corrected power generation amount obtained by correcting the power generation amount calculated using the solar radiation amount stored in the actual power generation information storage means;
The corrected power generation amount calculated by the power generation amount calculation means is compared with the actual power generation amount stored in the actual power generation information storage means, and the actual power generation amount that matches a predetermined standard with respect to the corrected power generation amount is extracted. Power generation contrast means;
Display means for displaying the actual power generation amount stored in the actual power generation information storage means, the corrected power generation amount calculated by the power generation amount calculation means, and the actual power generation amount extracted by the power generation amount comparison means;
A power generation amount evaluation apparatus comprising: The power generation amount evaluation apparatus according to claim 1 , wherein the predetermined operation period is any one of an operation year, an operation month, and an operation day. The actual power generation information storage means further stores for each predetermined structural unit,
The power generation information storage means stores for each further predetermined configuration unit,
The power generation amount calculating means, further the power generation amount calculated by using the power information for each of the predetermined structural units, calculates the correction power generation amount obtained by correcting with the solar radiation amount to be stored in the actual power generation information storage means, The power generation amount evaluation apparatus according to claim 1 or 2 , characterized in that: The power generation amount evaluation apparatus according to claim 3 , wherein the predetermined structural unit is any one of a power conditioner, a string, an array, a solar panel, and a cell. A power generation amount evaluation method executed by a power generation amount evaluation device,
The actual power generation information storage means for storing the predetermined operation period, the actual power generation amount, and the solar radiation amount in association with each other;
Power generation information storage means for storing a power plant name for identifying a power plant and power generation information for each predetermined operation period in association with each other;
Power plant information storage means for storing the power plant name and items characterizing one or more power plants in association with each other,
The power plant name that matches the item value of the item that characterizes the power plant to be evaluated is acquired from the power plant information storage means, and the power generation information associated with the acquired power plant name is A power generation amount calculating step for calculating a corrected power generation amount obtained by correcting the power generation amount calculated using the solar radiation amount stored in the actual power generation information storage unit;
The corrected power generation amount calculated in the power generation amount calculation step is compared with the actual power generation amount stored in the actual power generation information storage unit, and the actual power generation amount that matches a predetermined standard with respect to the corrected power generation amount is extracted. Power generation comparison step,
A display step for displaying the actual power generation amount stored in the actual power generation information storage means, the corrected power generation amount calculated by the power generation amount calculation step, and the actual power generation amount extracted by the power generation amount comparison step;
A method for evaluating the amount of power generation. In the power generation evaluation device,
The actual power generation information storage means for storing the predetermined operation period, the actual power generation amount, and the solar radiation amount in association with each other;
Power generation information storage means for storing a power plant name for identifying a power plant and power generation information for each predetermined operation period in association with each other;
Power plant information storage means for storing the power plant name and items characterizing one or more power plants in association with each other,
The power plant name that matches the item value of the item that characterizes the power plant to be evaluated is acquired from the power plant information storage means, and the power generation information associated with the acquired power plant name is A power generation amount calculating step for calculating a corrected power generation amount obtained by correcting the power generation amount calculated using the solar radiation amount stored in the actual power generation information storage unit;
The corrected power generation amount calculated in the power generation amount calculation step is compared with the actual power generation amount stored in the actual power generation information storage unit, and the actual power generation amount that matches a predetermined standard with respect to the corrected power generation amount is extracted. Power generation comparison step,
A display step for displaying the actual power generation amount stored in the actual power generation information storage means, the corrected power generation amount calculated by the power generation amount calculation step, and the actual power generation amount extracted by the power generation amount comparison step;
A power generation amount evaluation program characterized in that

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