JP2018038205A - Management device, management system, and management program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a management device, management system, and management program, capable of more accurately determining abnormality of a device.SOLUTION: A management device comprises: an acquisition unit that acquires environment information on an environment of a facility and actual amount information showing an actual amount of power generation, power consumption, or power storage by a facility side device installed in the facility; an assumption amount calculation unit that on the basis of past environment information, past actual amount information, and present environment information acquired by the acquisition unit, calculates an assumption amount of power generation, power consumption, or power storage by the facility side device; and an abnormality determination unit that compares the actual amount shown by the present actual amount information acquired by the acquisition unit with the assumption amount calculated by the assumption amount calculation unit and determines abnormality of the facility side device on the basis of a comparison result.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a management device, a management system, and a management program.

  For example, Ministry of Economy, Trade and Industry, “Energy, Resource, and Aggregation Business Issues”, [online], January 29, 2016, Energy, Resource, Aggregation, Business Review Committee (First) Handout 6, Search on August 3, 2016], Internet <URL: http: // www. meti. go. jp / committee / kenkyukai / energy_environment / energy_resource / pdf / 001_06_00. pdf> (Non-Patent Document 1) describes a problem for comprehensively controlling energy resources such as a power generation device, a storage battery, or a load device in a power demand facility such as a factory, an office, or a general household from a remote location. .

  In this way, by comprehensively controlling energy resources remotely, it is possible to optimally combine energy creation, energy storage, and energy saving to expand the introduction of renewable energy, further reduce power consumption, and level power load. It is expected that In addition, it is expected that energy resources in power demand facilities will be effectively utilized by introducing a mechanism for comprehensively controlling energy resources from a remote location.

Ministry of Economy, Trade and Industry, “Energy, Resource, and Aggregation Business Issues”, [online], January 29, 2016, Energy, Resource, Aggregation, and Business Review Committee (1st) Handout 6, [2016] Search on August 3, 2009], Internet <URL: http: // www. meti. go. jp / committee / kenkyukai / energy_environment / energy_resource / pdf / 001_06_00. pdf>

  By the way, even when a control instruction for a device such as a power generation device, a storage battery, or a load device is notified, a result in accordance with the control instruction may not be obtained due to a failure of the device. In this manner, if the administrator's server cannot detect that the result in accordance with the control instruction cannot be obtained, for example, a long time may elapse before the cause is removed.

  Even if the server can detect that a result in accordance with the control instruction has not been obtained, the environment around the device, the level of control, a device failure, or unauthorized access from an external server, etc. Since various causes are considered, an appropriate response may not be possible.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a management device, a management system, and a management program that can more accurately determine an abnormality of a device.

  (1) In order to solve the above problems, a management device according to an aspect of the present invention provides environmental information related to the environment of a facility, and the actual amount of power generation, power consumption or power storage by a facility-side device provided in the facility. An acquisition unit that acquires the actual amount information shown, and the power generation and power consumption of the facility-side device based on the past environment information, the past actual amount information, and the current environment information acquired by the acquisition unit Alternatively, an assumed amount calculation unit that calculates an assumed amount of power storage, the actual amount indicated by the current actual amount information acquired by the acquisition unit, and the estimated amount calculated by the assumed amount calculation unit are compared. And an abnormality determination unit that determines an abnormality of the facility-side device based on the comparison result.

  (7) In order to solve the above-described problem, a management system according to an aspect of the present invention includes a facility-side device that performs power generation, power consumption, or power storage, and a management device that manages the facility-side device, The management device acquires environmental information related to the environment of the facility where the facility-side device is provided, and actual amount information indicating the actual amount of power generation, power consumption or power storage by the facility-side device from the facility-side device, and Based on the past environment information acquired from the side device, the past actual amount information, and the current environment information, the power generation, power consumption or storage amount of the facility side device is calculated, and from the facility side device The actual amount indicated by the acquired actual amount information is compared with the calculated estimated amount, and an abnormality of the facility-side apparatus is determined based on the comparison result.

  (8) In order to solve the above-described problem, a management program according to an aspect of the present invention is a management program used in a management apparatus that manages a facility-side apparatus, wherein the facility-side apparatus is provided with a computer. An acquisition unit that acquires environmental information related to the environment of the facility, and actual amount information indicating the actual amount of power generation, power consumption, or storage by the facility-side device, and the past environmental information acquired by the acquisition unit, Based on the actual amount information and the current environmental information, an assumed amount calculation unit that calculates an estimated amount of power generation, power consumption, or power storage of the facility-side device, and the current actual amount information acquired by the acquisition unit The actual amount shown in FIG. 5 is compared with the assumed amount calculated by the assumed amount calculation unit, and an abnormality determination is performed to determine abnormality of the facility-side device based on the comparison result When a program for functioning as a.

  The present invention can be realized not only as a management apparatus including such a characteristic processing unit, but also as a management method using such characteristic processing as a step. Further, it can be realized as a semiconductor integrated circuit that realizes part or all of the management device.

  In addition, the present invention can be realized not only as a management system including such a characteristic processing unit, but also as a management method having such characteristic processing as a step, or a program for causing a computer to execute such a step. Can be realized.

  According to the present invention, it is possible to more accurately determine an abnormality of a device.

FIG. 1 is a diagram showing a configuration of a management system according to an embodiment of the present invention. FIG. 2 is a diagram illustrating an example (part 1) of the assumed amount calculated by the assumed amount calculation unit of the management device according to the embodiment of the present invention. FIG. 3 is a diagram illustrating an example (No. 2) of the assumed amount calculated by the assumed amount calculation unit of the management device according to the embodiment of the present invention. FIG. 4 is a diagram illustrating an example (No. 3) of the assumed amount calculated by the assumed amount calculation unit of the management device according to the embodiment of the present invention. FIG. 5 is a diagram illustrating an example (part 4) of the assumed amount calculated by the assumed amount calculation unit of the management device according to the embodiment of the present invention. FIG. 6 is a diagram illustrating an example of a threshold value calculated by the abnormality determination unit of the management device according to the embodiment of the present invention. FIG. 7 is a flowchart defining the overall operation procedure by the management apparatus according to the embodiment of the present invention. FIG. 8 is a flowchart defining the operation procedure of the abnormality determination process by the management apparatus according to the embodiment of the present invention.

  First, the contents of the embodiment of the present invention will be listed and described.

  (1) The management device according to the embodiment of the present invention acquires environmental information related to the facility environment, and actual amount information indicating the actual amount of power generation, power consumption, or storage by the facility-side device provided in the facility. Based on the previous environmental information, the past actual amount information, and the current environmental information acquired by the acquisition unit and the acquisition unit, the estimated amount of power generation, power consumption, or power storage of the facility-side device is calculated. Comparing the estimated amount calculated by the assumed amount calculating unit, the actual amount indicated by the current actual amount information acquired by the acquiring unit, and the estimated amount calculated by the assumed amount calculating unit, based on the comparison result An abnormality determination unit that determines an abnormality of the facility-side device.

  Here, when judging an abnormality of the facility side device without considering the environment, the environment such as the amount of solar radiation greatly affects the measured value even though the facility side device has no abnormality. It may be determined that an abnormality has occurred. On the other hand, with the configuration as described above, for example, the influence of the environment is not determined as an abnormality, so that it is possible to more accurately determine an abnormality such as a failure of the facility side device or an unauthorized access from an external server.

  (2) Preferably, when the difference between the actual amount indicated by the current actual amount information and the assumed amount is equal to or greater than a threshold value, the abnormality determination unit determines that the facility side device is abnormal. The threshold value is a value based on the actual amount indicated by the past actual amount information.

  With such a configuration, for example, an appropriate value based on the difference between the past actual amount and the assumed amount can be set as the threshold value.

  (3) Preferably, the threshold value is set for each time zone including the current time.

  With such a configuration, it is possible to make a more accurate abnormality determination in consideration of an environment that changes with time.

  (4) Preferably, the said management apparatus is further provided with the control information processing part which produces the control information regarding the control of the electric power generation by the said facility side apparatus, electric power consumption, or electrical storage, The said threshold value is the said control information processing part It is set for each control level indicated by the control information created by.

  With such a configuration, for example, the influence of the control level is not determined as abnormal, so that the abnormality of the facility-side apparatus can be determined more accurately.

  (5) Preferably, the assumed amount is calculated to a value according to a time zone including the current time.

  With such a configuration, it is possible to calculate an appropriate value as an assumed amount in consideration of an environment that changes depending on a time zone.

  (6) Preferably, the said management apparatus is further provided with the control information processing part which produces the control information regarding the control of the electric power generation by the said facility side apparatus, electric power consumption, or electrical storage, The said assumption amount is the said control information processing part The value is calculated according to the control level indicated by the created control information.

  With such a configuration, an appropriate value considering the control level can be calculated as an assumed amount.

  (7) A management system according to an embodiment of the present invention includes a facility-side device that performs power generation, power consumption, or storage, and a management device that manages the facility-side device. Environmental information related to the environment of the facility where the device is provided, and actual amount information indicating the actual amount of power generation, power consumption or power storage by the facility-side device is acquired from the facility-side device, and past information acquired from the facility-side device is acquired. Based on the environmental information, the past actual amount information, and the current environmental information, the current actual amount obtained from the facility side device by calculating the estimated amount of power generation, power consumption or power storage of the facility side device. The actual amount indicated by the information is compared with the calculated estimated amount, and an abnormality of the facility side device is determined based on the comparison result.

  Here, when judging an abnormality of the facility side device without considering the environment, the environment such as the amount of solar radiation greatly affects the measured value even though the facility side device has no abnormality. It may be determined that an abnormality has occurred. On the other hand, with the configuration as described above, for example, the influence of the environment is not determined as an abnormality, so that it is possible to more accurately determine an abnormality such as a failure of the facility side device or an unauthorized access from an external server.

  (8) A management program according to an embodiment of the present invention is a management program used in a management apparatus that manages a facility-side apparatus, and includes a computer and environmental information regarding the environment of the facility in which the facility-side apparatus is provided , And an acquisition unit that acquires actual amount information indicating the actual amount of power generation, power consumption, or storage by the facility-side device, the past environmental information acquired by the acquisition unit, the past actual amount information, and the current Based on the environmental information, an assumed amount calculation unit that calculates an assumed amount of power generation, power consumption or power storage of the facility-side device, and the actual amount indicated by the current actual amount information acquired by the acquisition unit, Comparing the assumed amount calculated by the assumed amount calculation unit, and functioning as an abnormality determination unit that determines an abnormality of the facility-side device based on the comparison result Is a program.

  Here, when judging an abnormality of the facility side device without considering the environment, the environment such as the amount of solar radiation greatly affects the measured value even though the facility side device has no abnormality. It may be determined that an abnormality has occurred. On the other hand, with the configuration as described above, for example, the influence of the environment is not determined as an abnormality, so that it is possible to more accurately determine an abnormality such as a failure of the facility side device or an unauthorized access from an external server.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals and description thereof will not be repeated. Moreover, you may combine arbitrarily at least one part of embodiment described below.

<Configuration and basic operation>
[Management system]
FIG. 1 is a diagram showing a configuration of a management system according to an embodiment of the present invention.

  With reference to FIG. 1, the management system 201 includes a management apparatus 101 and a facility apparatus 102.

  The facility-side device 102 is a power generation device provided in a power generation facility such as a solar power plant or a wind power plant, and is operated by a power generation company. The facility apparatus 102 is, for example, a solar power generation device or a wind power generation device that generates electricity from renewable energy.

  In addition, the facility-side device 102 may be a load device such as an air conditioner or a power storage device provided in a power demand facility such as a building, a factory, or a general household.

  The management apparatus 101 is operated by a distribution company such as an aggregator, for example, and manages power generation, power consumption, or power storage by the facility apparatus 102 by communicating with one or more facility apparatuses 102.

  Specifically, for example, the management apparatus 101 receives an input of a control instruction from an administrator, and creates control information for controlling the operation of the facility apparatus 102 based on the received control instruction. The management apparatus 101 transmits the created control information to the facility apparatus 102 via the communication network 103.

  The control information created by the management apparatus 101 is based on the start timing and length of the control period, which is a period for controlling the operation of the facility apparatus 102, the power generation capacity, the power consumption amount, or the storage capacity of the facility apparatus 102. Control level and the like. Further, the control information may include the end timing of the control period instead of the length of the control period.

  The facility apparatus 102 controls its own power generation, power consumption, or power storage by operating based on the content of the control information received from the management apparatus 101.

[Management device]
The management apparatus 101 includes a control information processing unit 11, a storage unit 12, a control information transmission unit 13, an information acquisition unit 14, an assumed amount calculation unit 15, an abnormality determination unit 16, and a notification unit 17.

  For example, the control information processing unit 11 receives an input of a control instruction from an administrator, and creates control information based on the received control instruction. Then, the control information processing unit 11 stores the created control information in the storage unit 12. Further, the control information processing unit 11 outputs the created control information to the control information transmission unit 13.

  When receiving the control information from the control information processing unit 11, the control information transmission unit 13 transmits the control information to the facility apparatus 102 via the communication network 103.

  The information acquisition unit 14 transmits the actual amount information indicating the actual amount of power generation, power consumption or power storage by the facility side device 102 and the environment information on the environment of the facility where the facility side device 102 is provided via the communication network 103. Obtained from the side device 102.

  The environmental information indicates, for example, at least one of temperature, humidity, amount of solar radiation, and weather around the facility apparatus 102. Each of temperature, humidity, solar radiation, and weather is also referred to as “environment”.

  Specifically, the information acquisition unit 14 receives the actual amount information and the environment information transmitted from the facility apparatus 102 every hour. The actual amount information includes, for example, one hour of measurement results every minute of the power generated, consumed or stored by the facility apparatus 102. The environmental information includes, for example, a measurement result of solar radiation every minute for one hour.

  Then, the information acquisition unit 14 stores, for example, a record amount information and environment information acquired from the facility-side device 102, and a set of time information indicating the time when the information is acquired from the facility-side device 102 in the storage unit 12. save.

  Note that the information acquisition unit 14 acquires environment information about the environment around the facility where the facility apparatus 102 is provided, for example, from a website on the Internet, instead of acquiring environment information from the facility apparatus 102. Also good.

  However, it is more likely that the environmental information obtained from the facility apparatus 102 more accurately indicates the environment around the facility apparatus 102 than the environmental information obtained from a website on the Internet. For this reason, it is preferable that the information acquisition part 14 is a structure which acquires environmental information from the facility side apparatus 102. FIG.

  The storage unit 12 stores a database, and the control information received from the control information processing unit 11 and the actual amount information, environment information, and time information received from the information acquisition unit 14 are registered in the database.

  Here, for example, if the facility apparatus 102 is a power generation device, there is a difference in the actual amount of power generation between when the amount of solar radiation around the power generation device is large and when it is small.

  For example, if the facility apparatus 102 is an air conditioner, there is a difference in the actual amount of power consumption between the case where the difference between the temperature around the air conditioner and the set temperature of the air conditioner is large and the case where the difference is small. .

  For example, if the facility apparatus 102 is a power storage device, there is a difference in the actual amount of power storage between the case where the battery temperature of the power storage device is high and the case where the battery temperature is low.

  Thus, there is a correlation between the environment around the facility-side device 102 and the actual amount of power generation, power consumption, or power storage by the facility-side device 102. For this reason, the assumed amount calculation unit 15 creates, for example, correlation information indicating the correlation between the environment and the actual amount based on the environment and the actual amount measured in the past, and based on the created correlation information and the current environment. The current power generation, power consumption, or estimated amount of power storage by the facility apparatus 102 can be calculated.

  Specifically, the assumed amount calculation unit 15 reads, for example, a plurality of sets of environment information, actual amount information, and time information acquired in a past period from the information stored in the storage unit 12.

  Note that the certain period is, for example, one week or one month. Hereinafter, this period is referred to as a “learning period”.

  Then, the assumed amount calculation unit 15 calculates the correlation coefficient between the environment and the actual amount as the correlation information using, for example, the environmental information and the actual amount information among the read information.

  Further, the assumed amount calculation unit 15 reads, for example, a set of current environment information, actual amount information, and time information stored in the storage unit 12.

  Here, the current environment information is information indicating the current measurement result of the environment such as the amount of solar radiation, and is, for example, the latest environment information stored in the storage unit 12. Further, the current actual amount information is information indicating the current measurement result of power generation, power consumption or stored electric power by the facility side device 102, for example, the latest actual amount information stored in the storage unit 12. is there. The current time information is information indicating the current time, for example, the latest time information stored in the storage unit 12.

  The latest environment information, the latest actual amount information, and the latest time information stored in the storage unit 12 are also referred to as “current environment information”, “current actual amount information”, and “current time information”, respectively.

  Then, the assumed amount calculation unit 15 calculates the assumed amount of current power generation, power consumption, or storage by the facility-side device 102 based on, for example, the calculated correlation coefficient and the current environment information in the read information. To do.

  Then, the assumed amount calculation unit 15 outputs assumed amount information indicating the calculated assumed amount to the abnormality determination unit 16.

  Further, the assumed amount calculation unit 15 outputs, for example, current actual amount information and current time information in the read information to the abnormality determination unit 16.

  The abnormality determination unit 16 compares the assumed amount indicated by the assumed amount information received from the assumed amount calculation unit 15 with the actual amount indicated by the current actual amount information, and determines the abnormality of the facility apparatus 102 based on the comparison result. Do. For example, the abnormality determining unit 16 determines that the facility apparatus 102 is abnormal when the difference between the assumed amount indicated by the assumed amount information and the actual amount indicated by the current actual amount information is equal to or greater than the threshold value Th.

  The abnormality determination unit 16 determines the abnormality of the facility apparatus 102 every time a set of environment information, actual amount information, and time information is newly stored in the storage unit 12, for example.

  The abnormality determining unit 16 determines that the facility apparatus 102 is abnormal when the difference between the estimated amount and the actual amount indicated by the current actual amount information is equal to or greater than the threshold value Th continuously n times. It may be.

  In addition, the abnormality determination unit 16 determines, for example, that the difference between the estimated amount and the actual amount indicated by the current actual amount information is a threshold value n times or more of the latest m times when the abnormality determination of the facility apparatus 102 is performed. When it is more than Th, the structure which judges that the facility side apparatus 102 is abnormal may be sufficient.

  When the abnormality determination unit 16 determines that the facility side device 102 is abnormal, for example, the determination result that the facility side device 102 is abnormal, the assumed amount information, the current actual amount information, and the current time information, Output to the notification unit 17.

  For example, when the notification unit 17 receives the determination result that the facility apparatus 102 is abnormal, the assumed amount information, the current actual amount information, and the current time information, the identification information of the facility apparatus 102 that is determined to be abnormal is received. Then, the assumed amount indicated by the assumed amount information, the actual amount indicated by the current actual amount information, and the time indicated by the current time information are notified to the administrator using mail, facsimile or telephone.

(Calculation of assumed amount)
(A) Part 1
FIG. 2 is a diagram illustrating an example (part 1) of the assumed amount calculated by the assumed amount calculation unit of the management device according to the embodiment of the present invention.

  2, the assumed amount calculation unit 15 uses, for example, a plurality of pieces of environment information acquired during the learning period among the information stored in the storage unit 12 to calculate the average amount of solar radiation ( Hereinafter, Sp is also calculated.

  In addition, the assumed amount calculation unit 15 uses, for example, a plurality of actual amount information acquired during the learning period among the information stored in the storage unit 12 to calculate the average of the actual amount during the learning period (hereinafter, “past Vp is calculated.

  Then, the assumed amount calculation unit 15 calculates a correlation coefficient between the calculated past solar radiation amount Sp and the past actual amount Vp, for example, “0.7”.

  Then, the assumed amount calculation unit 15 uses the solar radiation amount Sn indicated by the current environment information stored in the storage unit 12 and the calculated correlation coefficient “0.7”, for example, to determine the current amount by the facility side device 102. The estimated amount Vs of power generation, power consumption or power storage is calculated.

(B) Part 2
FIG. 3 is a diagram illustrating an example (No. 2) of the assumed amount calculated by the assumed amount calculation unit of the management device according to the embodiment of the present invention.

  The assumed amount calculation unit 15 may calculate the assumed amount for each time zone including the current time, for example, instead of the assumed amount described in “(a) Part 1”.

  Specifically, the assumed amount calculation unit 15 reads, for example, the latest control information stored in the storage unit 12 (hereinafter, also referred to as “current control information”), and sets the control period indicated by the read current control information. Divide into multiple periods.

  For example, when the control period is “9:00 to 18:00”, the assumed amount calculation unit 15 sets the control period to “9:00 to 12:00”, “12: 0 to 15:00”, and “ It is divided into the period of “15: 00 to 18:00”.

  Then, the assumed amount calculation unit 15 uses, for example, “9:00 to 12:00” in the learning period using the environment information and the time information acquired in the learning period among the information stored in the storage unit 12. Is calculated as the past solar radiation amount Sp11 in the morning time zone.

  Further, the assumed amount calculation unit 15 calculates the average of the solar radiation amount of “12: 0 to 15:00” in the learning period as the past solar radiation amount Sp12 in the daytime period. Further, the assumed amount calculation unit 15 calculates the average of the solar radiation amount “15: 00 to 18:00” in the learning period as the past solar radiation amount Sp13 in the evening time zone.

  Further, the assumed amount calculation unit 15 uses, for example, “9:00 to 12:00 in the learning period, using the actual amount information and the time information acquired during the learning period among the information stored in the storage unit 12. Is calculated as the past actual amount Vp11 in the morning time zone.

  Further, the assumed amount calculation unit 15 calculates the average of the actual amount “12: 0 to 15:00” in the learning period as the past actual amount Vp12 in the daytime period. Further, the assumed amount calculation unit 15 calculates the average of the actual amount of “15: 0 to 18:00” in the learning period as the past actual amount Vp13 in the evening time zone.

  Then, the assumed amount calculation unit 15 uses the calculated past solar radiation amounts Sp11, Sp12, Sp13 and the past actual amounts Vp11, Vp12, Vp13 to calculate a correlation coefficient between the past solar radiation amount and the past actual amount in each time zone. To do. For example, the calculated correlation coefficients for the respective time zones are “0.5”, “0.55”, and “0.6”.

  In addition, the assumed amount calculation unit 15 uses the solar radiation amount Sn indicated by the current environment information stored in the storage unit 12 and the calculated correlation coefficient, for example, for each estimated time zone including the current time. Is calculated.

  For example, when the current time is included in “9:00 to 12:00” in the morning time zone, the assumed amount calculation unit 15 uses the correlation coefficient “0.5” and the current solar radiation amount Sn, An assumed amount Vs11 is calculated. Further, the assumed amount calculation unit 15 uses the correlation coefficient “0.55” and the current solar radiation amount Sn when the current time is included in “12: 0 to 15:00” which is a daytime time zone. An assumed amount Vs12 is calculated. Further, the assumed amount calculation unit 15 uses the correlation coefficient “0.6” and the current solar radiation amount Sn when the current time is included in “15: 00 to 18:00” which is the evening time zone. An assumed amount Vs13 is calculated.

(C) Part 3
FIG. 4 is a diagram illustrating an example (No. 3) of the assumed amount calculated by the assumed amount calculation unit of the management device according to the embodiment of the present invention.

  The assumed amount calculation unit 15 may calculate the assumed amount for each control level indicated by the control information, for example, instead of the assumed amount described in “(a) Part 1” and “(b) Part 2”.

  Specifically, the assumed amount calculation unit 15 reads out the control information acquired during the learning period from the information stored in the storage unit 12, for example, and the control period and control in the learning period indicated by the read control information Check the level. Here, for example, it is assumed that there are a plurality of control periods in the learning period, and the control level of each control period is “75%”, “50%”, or “25%”.

  In addition, the assumed amount calculation unit 15 reads a set of environment information, actual amount information, and time information acquired during the learning period from information stored in the storage unit 12.

  For example, when the time indicated by the read time information of the set is included in any of the control periods in the learning period, the assumed amount calculation unit 15 associates the control level of the control period with the read set.

  Specifically, the control periods in the learning period are T1, T2,..., And the control levels in each control period are, for example, “25%”, “50%”,.

  In this case, the assumed amount calculation unit 15 associates the control level “25%” with the group G1 when the time of the read time information of the group G1 is included in the control period T1. Further, when the time of the read time information of the set G2 is included in the control period T2, the assumed amount calculation unit 15 associates the control level “50%” with the set G2. In this way, each read set is associated with a control level.

  Then, the assumed amount calculation unit 15 classifies the plurality of sets associated with the control levels in this way for each corresponding control level.

  Then, the assumed amount calculation unit 15 uses, for example, the environment information included in each of the plurality of sets corresponding to the control level “75%” to calculate the average amount of solar radiation indicated by each environment information at the control level “75%”. Is calculated as the past solar radiation amount Sp21. Specifically, when there is a group G3, G4, G5 as a group corresponding to the control level “75%”, the amount of solar radiation indicated by the environmental information included in the group G3 and the amount of solar radiation indicated by the environmental information included in the group G4 And the average of the solar radiation amount indicated by the environmental information included in the set G5 is calculated as the past solar radiation amount Sp21.

  Further, for example, the assumed amount calculation unit 15 indicates each environment information using environment information included in each of a plurality of sets corresponding to the control level “50%”, similarly to the case of the control level “75%”. The average solar radiation amount is calculated as the past solar radiation amount Sp22 corresponding to the control level “50%”.

  Further, for example, the assumed amount calculation unit 15 indicates each environment information using environment information included in each of a plurality of sets corresponding to the control level “25%”, similarly to the case of the control level “75%”. An average of the solar radiation amount is calculated as the past solar radiation amount Sp23 corresponding to the control level “25%”.

  Further, for example, the assumed amount calculation unit 15 uses the actual amount information included in each of the plurality of sets corresponding to the control level “75%” to calculate the average of the actual amounts indicated by the actual amount information as the control level “75. % ”Is calculated as the past performance amount Vp21. Specifically, when there is a set G3, G4, and G5 as a set corresponding to the control level “75%”, the actual amount indicated by the actual amount information included in the set G3 and the actual amount information included in the set G4 are indicated. The average of the solar radiation amount and the actual amount indicated by the actual amount information included in the group G5 is calculated as the past actual amount Vp21.

  Further, for example, the assumed amount calculation unit 15 uses the actual amount information included in each of the plurality of sets corresponding to the control level “50%”, similarly to the case of the control level “75%”. Is calculated as the past performance amount Vp22 corresponding to the control level “50%”.

  Further, for example, the assumed amount calculation unit 15 uses the actual amount information included in each of the plurality of sets corresponding to the control level “25%”, similarly to the case of the control level “75%”. Is calculated as a past performance amount Vp23 corresponding to the control level “25%”.

  Then, the assumed amount calculation unit 15 uses the calculated past solar radiation amounts Sp21, Sp22, Sp23 and the past actual amounts Vp21, Vp22, Vp23, for example, the correlation coefficient between the past solar radiation amount and the past actual amount for each control level. To calculate. For example, the calculated correlation coefficient is “0.5” for the control level “75%”, “0.8” for the control level “50%”, and the control level “25”. % "Is" 0.9 ".

  The assumed amount calculation unit 15 also calculates the current solar radiation amount Sn indicated by the current environment information stored in the storage unit 12, the control level indicated by the current control information stored in the storage unit 12, and the calculated correlation. Using the number, for example, an assumed amount is calculated for each control level in the current control period.

  That is, when the control level of the current control period is “75%”, the assumed amount calculation unit 15 calculates the assumed amount Vs21 using the correlation coefficient “0.5” and the current solar radiation amount Sn. Further, when the control level of the current control period is “50%”, the assumed amount calculation unit 15 calculates the assumed amount Vs22 using the correlation coefficient “0.8” and the current solar radiation amount Sn. Further, when the control level of the current control period is “25%”, the assumed amount calculation unit 15 calculates the assumed amount Vs23 using the correlation coefficient “0.9” and the current solar radiation amount Sn.

(D) 4
FIG. 5 is a diagram illustrating an example (part 4) of the assumed amount calculated by the assumed amount calculation unit of the management device according to the embodiment of the present invention.

  The assumed amount calculation unit 15 replaces the assumed amount described in “(a) No. 1”, “(b) No. 2”, and “(c) No. 3” with, for example, the facility-side device 102 that is the control target. The assumed amount may be calculated for each version of PCS (Power Conditioning System) software (hereinafter simply referred to as “software version of the facility apparatus 102”).

  Here, it is assumed that the management apparatus 101 manages a plurality of facility side apparatuses 102. Further, it is assumed that the control information stored in the storage unit 12 includes information indicating the software version of each facility apparatus 102 that is a control target.

  Specifically, the assumed amount calculation unit 15 reads out the control information acquired during the learning period from the information stored in the storage unit 12, and the control period and facility-side device in the learning period indicated by the read control information The software version of 102 is confirmed. Here, for example, it is assumed that the software version of the facility apparatus 102 controlled during the learning period is either “1” or “2”.

  In addition, the assumed amount calculation unit 15 reads a set of environment information, actual amount information, and time information acquired during the learning period from information stored in the storage unit 12.

  For example, when the time indicated by the read time information of the set is included in the control period in the learning period, the assumed amount calculation unit 15 determines the software version of the facility apparatus 102 that is the control target of the control period, Associate with the read set.

  Specifically, the control period in the learning period is T1, T2,..., And the software version of the facility apparatus 102 that is the control target in each control period is, for example, “1”, “2”,. Suppose that

  In such a case, when the time of the read time information of the set G1 is included in the control period T1, the assumed amount calculation unit 15 associates the software version “1” with the set G1. Further, when the time of the time information of the read set G2 is included in the control period T2, the assumed amount calculation unit 15 associates the software version “2” with the set G2. In this way, each of the read sets is associated with a software version.

  Then, the assumed amount calculation unit 15 classifies the plurality of sets associated with the software versions in this way for each corresponding software version.

  Then, the assumed amount calculation unit 15 uses, for example, a plurality of pieces of environment information corresponding to the software version “1” to calculate the average amount of solar radiation indicated by each environment information in the past solar radiation corresponding to the software version “1”. Calculated as the amount Sp31.

  Also, the assumed amount calculation unit 15 uses, for example, a plurality of pieces of environment information corresponding to the software version “2”, and calculates the average amount of solar radiation indicated by each environment information in the past solar radiation corresponding to the software version “2”. Calculated as a quantity Sp32.

  In addition, the assumed amount calculation unit 15 uses, for example, a plurality of pieces of actual amount information corresponding to the software version “1”, and the average of the actual amount indicated by each actual amount information corresponds to the software version “1”. Calculated as the past performance amount Vp31.

  Further, for example, the assumed amount calculation unit 15 uses a plurality of pieces of actual amount information corresponding to the software version “2”, and corresponds the average of the actual amount indicated by each actual amount information to the software version “2”. Calculated as the past performance amount Vp32.

  Then, the assumed amount calculation unit 15 calculates, for example, a correlation coefficient between the past solar radiation amount and the past actual amount for each version of the software, using the calculated past solar radiation amounts Sp41 and Sp42 and the past actual amount Vp41 and Vp42. . For example, the calculated correlation coefficient is “0.6” for the software version “1” and “0.7” for the software version “2”.

  Also, the assumed amount calculation unit 15 reads the current control information stored in the storage unit 12 and confirms the software version of the facility-side device 102 that is the current control target.

  Then, the assumed amount calculation unit 15 uses the current solar radiation amount Sn indicated by the current environment information stored in the storage unit 12 and the current version of the software to be controlled to calculate the assumed amount for each software version. calculate.

  That is, the assumed amount calculation unit 15 calculates the assumed amount Vs31 using the correlation coefficient “0.6” and the current solar radiation amount Sn when the current version of the software to be controlled is “1”. Further, when the current version of the software to be controlled is “2”, the assumed amount calculation unit 15 calculates the assumed amount Vs32 using the correlation coefficient “0.7” and the current solar radiation amount Sn.

  The assumed amount calculation unit 15 combines the calculation methods described in “(a) part 1”, “(b) part 2”, “(c) part 3”, and “(d) part 4”, respectively. An assumed amount may be calculated. For example, the assumed amount calculation unit 15 may calculate an assumed amount for each control level in the current control period and for each time zone in which the current time is included.

(Calculation of threshold value)
FIG. 6 is a diagram illustrating an example of a threshold value calculated by the abnormality determination unit of the management device according to the embodiment of the present invention.

  Referring to FIG. 6, abnormality determination unit 16 uses the actual amount information and time information acquired during the learning period, among the information stored in storage unit 12, for example, the morning of each day in the learning period. The average of the actual amount of each of the time zone “9:00 to 12:00”, the daytime time zone “12: 0 to 15:00”, and the evening time zone “15:00 to 18:00” calculate.

  For example, on the first day of the learning period, the average of the actual amount at “9:00 to 12:00” is “Vp111”, and the average of the actual amount at “12:00 to 15:00” is “Vp112”. Yes, the average of the actual amount in “15:00 to 18:00” is “Vp113”.

  On the second day of the learning period, the average of the actual amount at “9:00 to 12:00” is “Vp121”, and the average of the actual amount at “12: 0 to 15:00” is “Vp122”. Yes, the average of the actual amount in “15:00 to 18:00” is “Vp123”.

  Further, for example, when receiving the assumed amount information from the assumed amount calculation unit 15, the abnormality determination unit 16 calculates a difference between the assumed amount indicated by the assumed amount information and the average of the calculated actual amounts for each time zone.

  Specifically, when the current time is included in “9:00 to 12:00”, which is the morning time zone, and the assumed amount in the time zone is “Vs111”, the abnormality determination unit 16 determines the date of each day. A difference between the average Vp111, Vp121, Vp131,... Of the actual amount in “9:00 to 12:00” and the assumed amount Vs111 is calculated. Then, the abnormality determination unit 16 specifies the maximum value D1 among the calculated differences.

  Further, for example, when the current time is included in “12:00 to 15:00” which is a daytime time zone, and the assumed amount in the time zone is “Vs112”, the abnormality determination unit 16 sets the “ The difference between the average amount Vp112, Vp122, Vp132,... Of the actual amount at “12:00 to 15:00” and the assumed amount Vs112 is calculated. Then, the abnormality determination unit 16 specifies the maximum value D2 among the calculated differences.

  Then, abnormality determination unit 16 calculates, for example, X times specified maximum value “D1” or “D2” as threshold value Th. X is a setting parameter of the management apparatus 101 and is 3, for example. In this way, the abnormality determination unit 16 calculates the threshold value Th for each time zone including the current time, for example.

  Note that the abnormality determination unit 16 may use, for example, the threshold value Th for each control level of the facility side device 102 or the facility side device to be controlled instead of the threshold value Th for each time zone including the current time. The threshold value Th for each software version 102 may be calculated. In addition, the abnormality determination unit 16 may calculate a different threshold Th depending on whether the environment information is acquired from the facility apparatus 102 or a website on the Internet.

  In addition, the abnormality determination unit 16 may be configured such that, for example, the time zone including the current time, the control level of the facility apparatus 102, the software version of the facility apparatus 102 that is the control target, or the environment information acquisition source is the facility apparatus. X may be a different value depending on whether it is 102 or a website on the Internet.

[Facility equipment]
Referring to FIG. 1 again, the facility apparatus 102 includes a control information receiving unit 21, a control unit 22, an operating unit 23, a power input / output unit 24, a measurement information transmitting unit 25, and a measurement information collecting unit 26. And an environmental information measuring unit 27.

  The control information receiving unit 21 receives control information from the management apparatus 101 via the communication network 103 and outputs the received control information to the control unit 22.

  When receiving control information from the control information receiving unit 21, the control unit 22 controls the operation unit 23 based on the content of the control information.

  For example, the operation unit 23 is a power generation unit when the facility apparatus 102 is a power generation device, and outputs the power generated according to the control by the control unit 22 to the power network via the power input / output unit 24.

  The operation unit 23 is, for example, a load unit when the facility apparatus 102 is a load device, and operates using power received from the power network via the power input / output unit 24.

  The operation unit 23 is, for example, a power storage unit when the facility-side device 102 is a power storage device, and stores power received from the power network via the power input / output unit 24.

  The power input / output unit 24 measures, for example, the power output from the operation unit 23 or the power output to the operation unit 23.

  The environment information measurement unit 27 measures an environment such as temperature, humidity, solar radiation, and weather around the facility apparatus 102, for example.

  The measurement information collection unit 26 acquires the power measurement result by the power input / output unit 24 and the environment measurement result by the environment information measurement unit 27, for example, every minute, and associates the acquired measurement results. Then, for example, the measurement information collection unit 26 collects these measurement results acquired every minute for one hour and outputs the measurement results to the measurement information transmission unit 25.

  When the measurement information transmission unit 25 receives, for example, a measurement result for one hour from the measurement information collection unit 26, the measurement information transmission unit 25 indicates information indicating the measurement result, that is, actual amount information indicating the measurement result of power and measurement result of the environment. The environment information is transmitted to the management apparatus 101 via the communication network 103.

<Operation>
Next, the operation of the management apparatus 101 according to the embodiment of the present invention will be described.

  Each device in the management system 201 includes a computer, and an arithmetic processing unit such as a CPU in the computer reads and executes a program including a part or all of each step in the following flowchart from a memory (not shown). Each of the programs of the plurality of apparatuses can be installed from the outside. The programs of the plurality of apparatuses are distributed while being stored in a recording medium.

[Overall procedure]
FIG. 7 is a flowchart defining the overall operation procedure by the management apparatus according to the embodiment of the present invention.

  Here, it is assumed that the management apparatus 101 has acquired the actual amount information, the environment information, the time information, and the control information in the prior learning period.

  With reference to FIG. 7, first, the management apparatus 101 receives an input of a control instruction from an administrator, for example, and creates control information based on the received control instruction (step S11).

  Next, the management apparatus 101 transmits the created control information to the facility side apparatus 102 (step S12). Thereby, in the control period which the said control information shows, control of the electric power generation by the facility side apparatus 102, electric power consumption, or electrical storage is performed. And the facility side apparatus 102 transmits environmental information and performance amount information to the management apparatus 101 regularly, for example in a control period.

  Next, for example, the management apparatus 101 performs an abnormality determination process in which an abnormality of the facility apparatus 102 is determined every time performance amount information and environment information are received from the facility apparatus 102 (step S13).

[Procedure for abnormality judgment processing]
FIG. 8 is a flowchart defining the operation procedure of the abnormality determination process by the management apparatus according to the embodiment of the present invention.

  First, the management apparatus 101 receives performance amount information and environment information from the facility side apparatus 102 (step S21).

  Next, the management apparatus 101 calculates a correlation coefficient between the actual amount and the environment using the actual amount information and the environment information acquired during the learning period (step S22). Note that the management apparatus 101 may calculate the correlation coefficient before performing the abnormality determination process.

  Next, based on the calculated correlation coefficient and the environment indicated by the environmental information received from the facility-side device 102 in step S21, the management device 101 determines the estimated amount of power generation, power consumption, or storage by the facility-side device 102. Calculate (step S23).

  Next, the management apparatus 101 calculates, for example, the difference between the actual amount indicated by each of the plurality of actual amount information acquired during the learning period and the calculated assumed amount, and the maximum of the calculated plurality of differences Identify the value. Then, the management apparatus 101 calculates X times the specified maximum value as the threshold value Th (step S24).

  Next, the management device 101 checks whether or not the difference between the calculated estimated amount and the actual amount indicated by the actual amount information received from the facility-side device 102 in step S21 is greater than or equal to the threshold Th (step). S25).

  Then, when the difference between the assumed amount and the actual amount is less than the threshold Th (“NO” in step S25), the management apparatus 101 does not notify the administrator.

  On the other hand, when the difference between the assumed amount and the actual amount is equal to or greater than the threshold value Th ("YES" in step S25), the management device 101 notifies the administrator that the facility device 102 is abnormal, for example. This is performed (step S26).

<Modification>
The management apparatus 101 of the management system 201 according to the embodiment of the present invention described above determines whether the facility apparatus 102 is abnormal during the control period. However, the present invention is not limited to such a configuration, and the management apparatus 101 may be configured to determine whether the facility apparatus 102 is abnormal in at least one of a control period and a period other than the control period, for example. Good.

  Further, regardless of whether or not it is the control period, the facility apparatus 102 periodically transmits the environment information and the actual amount information to the management apparatus 101. The management apparatus 101 receives the environment information and the actual amount information from the facility apparatus 102, for example. Each time the actual amount information is received, the abnormality of the facility apparatus 102 may be determined. Further, the facility-side device 102 may be configured to determine whether the facility-side device 102 is abnormal in an arbitrary period regardless of whether or not it is a control period.

  Moreover, the management apparatus 101 should just be an apparatus which judges abnormality of the facility side apparatus 102 based on environmental information and performance amount information, for example, may be the structure which does not produce and transmit control information.

  By the way, even when a control instruction for a device such as a power generation device, a storage battery, or a load device is notified, a result in accordance with the control instruction may not be obtained due to a failure of the device. In this manner, if the administrator's server cannot detect that the result in accordance with the control instruction cannot be obtained, for example, a long time may elapse before the cause is removed.

  Even if the server can detect that a result in accordance with the control instruction has not been obtained, the environment around the device, the level of control, a device failure, or unauthorized access from an external server, etc. Since various causes are considered, an appropriate response may not be possible.

  On the other hand, in the management apparatus 101 according to the embodiment of the present invention, the information acquisition unit 14 includes the environmental information related to the environment of the facility, and the results of power generation, power consumption or power storage by the facility-side device 102 provided in the facility Acquire actual amount information indicating the amount. In addition, the assumed amount calculation unit 15 is based on the past environment information, the past actual amount information, and the current environment information acquired by the information acquisition unit 14, and the assumed amount of power generation, power consumption, or storage of the facility apparatus 102 Is calculated. In addition, the abnormality determination unit 16 compares the actual amount indicated by the current actual amount information acquired by the information acquisition unit 14 with the estimated amount calculated by the assumed amount calculation unit 15, and based on the comparison result, the facility side Judgment of abnormality of the apparatus 102 is performed.

  Here, when the abnormality of the facility apparatus 102 is determined without considering the environment, the environment such as the amount of solar radiation greatly affects the measurement value even though the facility apparatus 102 has no abnormality, and the facility It may be determined that an abnormality has occurred in the side device 102. On the other hand, with the configuration as described above, for example, the influence of the environment is not determined as an abnormality, so that it is possible to more accurately determine an abnormality such as a failure of the facility side device or an unauthorized access from an external server.

  Moreover, in the management apparatus 101 which concerns on embodiment of this invention, the abnormality determination part 16 is the facility side apparatus 102, when the difference of the performance amount which the present performance amount information shows and the assumption amount is more than threshold value Th. Is determined to be abnormal. The threshold value Th is a value based on the actual amount indicated by the past actual amount information.

  With such a configuration, for example, an appropriate value based on the difference between the past actual amount and the assumed amount can be set as the threshold value Th.

  Moreover, in the management apparatus 101 according to the embodiment of the present invention, the threshold value Th is set for each time zone including the current time.

  With such a configuration, it is possible to make a more accurate abnormality determination in consideration of an environment that changes with time.

  Moreover, in the management apparatus 101 which concerns on embodiment of this invention, the control information processing part 11 produces the control information regarding control of the electric power generation by the facility side apparatus 102, electric power consumption, or electrical storage. The threshold value Th is set for each control level indicated by the control information created by the control information processing unit 11.

  With such a configuration, for example, the influence of the control level is not determined as abnormal, so that the abnormality of the facility apparatus 102 can be determined more accurately.

  Further, in the management device 101 according to the embodiment of the present invention, the assumed amount is calculated to a value corresponding to the time zone including the current time.

  With such a configuration, it is possible to calculate an appropriate value as an assumed amount in consideration of an environment that changes depending on a time zone.

  Further, in the management apparatus 101 according to the embodiment of the present invention, the assumed amount is calculated to a value according to the control level indicated by the control information created by the control information processing unit 11.

  With such a configuration, an appropriate value considering the control level can be calculated as an assumed amount.

  The above embodiment should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  The above description includes the following features.

[Appendix 1]
An acquisition unit that acquires environmental information related to the environment of the facility, and actual amount information indicating the actual amount of power generation, power consumption, or power storage by the facility-side device provided in the facility;
An assumed amount calculation for calculating an estimated amount of power generation, power consumption, or storage of the facility-side device based on the past environment information, the past actual amount information, and the current environment information acquired by the acquisition unit And
The actual amount indicated by the current actual amount information acquired by the acquisition unit is compared with the estimated amount calculated by the assumed amount calculation unit, and the abnormality determination of the facility side device is performed based on the comparison result A management device comprising an abnormality determination unit for performing
The environmental information indicates at least one of temperature, humidity, solar radiation, and weather around the facility-side device,
The facility-side device is a power generation device, a load device or a power storage device,
The management device further includes:
Create control information related to power generation, power consumption or power storage control by the facility side device, and send the created control information to the facility side device,
The control information indicates a control period that is a period during which the control of the facility side device is performed,
The acquisition unit periodically acquires the environmental information and the actual amount information during at least one of the control period and a period other than the control period,
The assumed amount calculation unit creates correlation information indicating the correlation between the environment and the actual amount based on the past environment information and the past actual amount information acquired by the acquisition unit, Based on the correlation information and the current environmental information, the expected amount is calculated,
The abnormality determination unit is a management device that determines the abnormality each time the environmental information and the actual amount information are acquired by the acquisition unit.

DESCRIPTION OF SYMBOLS 11 Control information processing part 12 Storage part 13 Control information transmission part 14 Information acquisition part 15 Assumed amount calculation part 16 Abnormality judgment part 17 Notification part 21 Control information reception part 22 Control part 23 Operation part 24 Power input / output part 25 Measurement information transmission part 26 Measurement Information Collection Unit 27 Environmental Information Measurement Unit 101 Management Device

Claims (8)

An acquisition unit that acquires environmental information related to the environment of the facility, and actual amount information indicating the actual amount of power generation, power consumption, or power storage by the facility-side device provided in the facility;
An assumed amount calculation for calculating an estimated amount of power generation, power consumption, or storage of the facility-side device based on the past environment information, the past actual amount information, and the current environment information acquired by the acquisition unit And
The actual amount indicated by the current actual amount information acquired by the acquisition unit is compared with the estimated amount calculated by the assumed amount calculation unit, and the abnormality determination of the facility side device is performed based on the comparison result A management apparatus comprising an abnormality determination unit that performs The abnormality determination unit determines that the facility-side device is abnormal when a difference between the actual amount indicated by the current actual amount information and the assumed amount is equal to or greater than a threshold value.
The management device according to claim 1, wherein the threshold value is a value based on the actual amount indicated by the past actual amount information.   The management device according to claim 2, wherein the threshold value is set for each time zone including a current time. The management device further includes:
A control information processing unit for creating control information related to power generation, power consumption or power storage control by the facility side device;
The management device according to claim 2 or 3, wherein the threshold value is set for each control level indicated by the control information created by the control information processing unit.   The management apparatus according to claim 1, wherein the assumed amount is calculated to a value according to a time zone including a current time. The management device further includes:
A control information processing unit for creating control information related to power generation, power consumption or power storage control by the facility side device;
The management device according to claim 1, wherein the assumed amount is calculated to a value according to a control level indicated by the control information created by the control information processing unit. A facility-side device that generates, consumes or stores electricity;
A management device for managing the facility side device;
The management device acquires environmental information related to the environment of the facility where the facility-side device is provided, and actual amount information indicating the actual amount of power generation, power consumption or power storage by the facility-side device from the facility-side device, Based on the past environment information acquired from the facility side device, the past actual amount information, and the current environment information, the facility side device calculates an estimated amount of power generation, power consumption or power storage, and the facility side device A management system that compares the actual amount indicated by the current actual amount information acquired from the information and the calculated estimated amount, and determines abnormality of the facility-side device based on the comparison result. A management program used in a management device that manages facilities-side devices,
Computer
An acquisition unit that acquires environmental information related to the environment of the facility where the facility-side device is provided, and actual amount information indicating the actual amount of power generation, power consumption, or storage by the facility-side device;
Based on the past environment information acquired by the acquisition unit, the past actual amount information, and the current environment information, an assumed amount calculation unit that calculates the estimated amount of power generation, power consumption, or storage of the facility-side device When,
The actual amount indicated by the current actual amount information acquired by the acquisition unit is compared with the estimated amount calculated by the assumed amount calculation unit, and the abnormality determination of the facility side device is performed based on the comparison result An abnormality determination unit for performing
Management program to function as

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