JP2017163630A - Controller, power generator, control method and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make effective utilization of generated power of a photovoltaic power generation device in an output control period.SOLUTION: A power monitor (11) acquires information of output control for controlling an output of a power conditioner (12), calculates usable power including non-output power in which an output from the power conditioner (12) is suppressed as the result of implementation of the output control and displays information on the usable power on a GUI (18).SELECTED DRAWING: Figure 3

Description

  The present invention relates to a control device for a power generation device using natural energy, a power generation device including the control device, a control method, and a program.

  Solar power generation, wind power generation, and the like are attracting attention as power generation methods that can suppress carbon dioxide emissions by using natural energy. In addition, with the implementation of a system in which electric power companies purchase the generated power, the spread of solar power generation to general households and industrial facilities is progressing.

  2. Description of the Related Art In recent years, a grid-connected solar power generation apparatus that is connected to an electric power system and transmits (sells power) and receives (purchases power) with the electric power system has been spreading. In the grid-connected solar power generation system, power is sold to the power company by causing the surplus power from the photovoltaic power generation to flow back to the power system, but the power system side voltage rises and performs reverse power flow. When it becomes difficult, voltage suppression may be performed.

  Patent Document 1 proposes a technique for starting charging of a power storage device and hot water storage of a hot water storage type hot water supply device when the voltage of a grid-connected solar power generation device is suppressed.

  By the way, since power generation using sunlight depends on the weather, the amount of power generation does not always match demand. For example, in a season in which strong solar radiation continues for a long time, it is possible that the power generated by solar power generation is reversely flowed simultaneously from a plurality of solar power generation devices to the power system. If so, there is concern that the power system will become unstable.

  Therefore, the electric power company can set the upper limit value of the output of AC power (AC output) generated by the power conditioner for each of the plurality of photovoltaic power generation devices so that the power system can be prevented from becoming unstable. The output control specified along with the date and time is planned. As a result of the output control, the power that can flow backward from the photovoltaic power generation apparatus to the power system is limited. Information that specifies the upper limit value of the AC output of the inverter together with the date and time is called an output control schedule. The output control schedule is created based on the predicted power generation amount for each solar power generation device and the power demand prediction, and is distributed from the server (schedule server) managed by the power company to the solar power generation device via the communication network. For example, it is supplied to each solar power generation device.

JP 2012-1000039 A (published May 24, 2012)

  As described above, the output control is a new system that suppresses the AC output of the power conditioner according to the output control schedule supplied from the electric power company, and the technique of Patent Document 1 relating to output suppression cannot be applied as it is.

  Moreover, in the technique of patent document 1, since a solar power generation device starts charge of an electrical storage apparatus automatically and hot water storage of a hot water storage type hot-water supply apparatus, generated power cannot be used for the arbitrary uses which a user asks.

  The present invention has been made in view of the above-mentioned problems, and its purpose is to suppress a decrease in the AC output of the power generation apparatus accompanying the execution of output control, and it can be used for any application for which the user wants the AC output. It is to realize a control device for a simple power generation device, a power generation device including the control device, a control method and a program.

In order to solve the above problem, a control device for a power generation device according to an aspect of the present invention acquires information on output control for controlling an output of a power generation device that is interconnected with a power system, and implements the output control. And calculating usable power including unoutput power that is suppressed from being output from the power generation device,
Information on the available power is notified to a user of the power generation device.

  In order to solve the above-described problem, a method for controlling a power generator according to one aspect of the present invention obtains information on output control for controlling the output of a power generator that is interconnected with a power system, and implements the output control. Accordingly, usable power including non-output power that is suppressed from being output from the power generation device is calculated, and information on the usable power is notified to a user of the power generation device.

  According to one aspect of the present invention, a control device for a power generation device that can suppress a decrease in the AC output of the power generation device that accompanies the output control and can be effectively used for any application for which the user seeks the AC output, There exists an effect that a power generator provided with a control device, a control method, and a program can be provided.

It is a block diagram which shows the whole structure of the solar energy power generation system in one Embodiment of this invention. (A) is explanatory drawing which shows an example of the output control schedule contained in output control information, (b) is explanatory drawing which shows the output control pattern data corresponding to the output control schedule shown by (a). It is a block diagram which shows the principal part structure of the controller with which a solar power generation device is provided. It is explanatory drawing for demonstrating an example of the calculation process of the usable electric power by the usable electric power calculation part shown by FIG. It is explanatory drawing for demonstrating another example of the calculation process of the usable electric power by the usable electric power calculation part shown by FIG. It is a processing flow for demonstrating an example of the notification process of the usable electric power by the notification process part shown by FIG. (A) And (b) is explanatory drawing which shows an example of the example of a notification displayed on GUI shown in FIG. It is explanatory drawing which shows another example of the example of a notification displayed on GUI shown in FIG.

Embodiment 1
Hereinafter, embodiments of the present invention will be described in detail.

(Outline of solar power generation system configuration)
First, with reference to FIG. 1, the structure of the solar power generation system in one Embodiment of this invention is demonstrated.

  FIG. 1 is a block diagram showing the overall configuration of a photovoltaic power generation system according to an embodiment of the present invention. As shown in FIG. 1, the solar power generation system 1 includes a solar power generation device (power generation device) 10, a schedule server 20, the Internet 30, and a router 40.

  The solar power generation device 10 is a grid-connected solar power generation device that is connected to the power system 60 and performs power transmission (power sales) and power reception (power purchase) with the power system 60. The solar power generation device 10 includes, as an example, a power monitor (control device) 11, a power conditioner 12, and a solar panel 13. In the present embodiment, it is assumed that the solar power generation device 10 is installed for general household use.

  The power monitor 11 has a controller function for comprehensively controlling the operation of the photovoltaic power generation apparatus 10 and a user interface function.

  The power monitor 11 includes a function of controlling the output of AC power (AC output) generated by the power conditioner 12 based on the output control schedule included in the output control information received from the schedule server 20 as a function of the controller. It is out. Moreover, the power monitor 11 includes a function of calculating usable power including unoutput power that is suppressed from being output from the power conditioner 12 with the execution of output control.

  Moreover, the power monitor 11 displays, for example, the current state of the generated power, the power sale amount, the power purchase amount, the power consumption, the power sale unit price, the power purchase unit price, and the target value of the power consumption as a user interface function. And a function for notifying the user of the usage status with respect to the target value of power consumption or an abnormality occurring in the photovoltaic power generation apparatus 10. Further, the power monitor 11 includes a function for displaying information on the calculated usable power and prompting the user to use (consume) the usable power.

  The power conditioner 12 converts DC power generated by the solar panel 13 into AC power and supplies the AC power to a household load (electric device) 50, a power storage device (not shown), and the like. Further, the power conditioner 12 sells the surplus power remaining by subtracting the load power supplied to the household load 50, the power storage device, and the like from the generated power by causing the power grid 60 to flow backward.

  Note that the user of the solar power generation apparatus 10 can use the user interface function of the power monitor 11 by using a dedicated portable terminal or a general-purpose portable terminal. Can be wirelessly connected to the photovoltaic power generation system 1.

  The schedule server 20 is a server that is owned or managed by a power company that supplies power to the power system 60 or a distribution company of output control information including an output control schedule. The output control schedule is information defining the upper limit of the output of the photovoltaic power generation apparatus 10, that is, the AC output of the power conditioner 12, for a specific time zone on a specific day, for example, as a percentage.

  The output control information is distributed to the solar power generation device 10 via the Internet 30 and the router 40. It is also possible for the power monitor 11 to go to the schedule server 20 to obtain an output control schedule using the power plant ID. The power plant ID is identification information assigned to each photovoltaic power generation device so that a large number of photovoltaic power generation devices including the photovoltaic power generation device 10 can be identified. A specific example of the output control schedule will be described later.

(Output control schedule)
2A is an explanatory diagram showing an example of an output control schedule included in the output control information, and FIG. 2B is an output corresponding to the output control schedule shown in FIG. It is explanatory drawing which shows a control pattern.

  As shown in FIGS. 2A and 2B, the output control schedule includes a time (hour) and an output control value (%) for each execution date of the output control. For example, in the output control schedule in the figure, the output control value of the power conditioner 12 is designated as 100% in the time zone from 0 o'clock to 9 o'clock on year, month, month, day. For this reason, the solar power generation device 10 does not perform output control of the power conditioner 12 in the time zone from 0:00 to 9:00 on the same day.

  In the output control schedule, the output control value of the power conditioner 12 is specified as 40% in the time zone from 9:00 to 11:00 on the same day. For this reason, the solar power generation device 10 performs control which makes the upper limit of the output of the power conditioner 12 40% of a rated capacity in the time slot | zone from 9:00 to 11:00 on the same day. However, when the private power consumption exceeds the AC output of the power conditioner 12 at the time of output control (output control value: 40%), it is allowed to increase the output of the power conditioner 12 to the private power consumption.

  In the output control schedule, the output control value of the power conditioner 12 is specified as 0% in the time zone from 11:00 to 13:00 on the same day. However, it is permissible to increase the output of the power conditioner 12 up to the private power consumption. For this reason, the solar power generation device 10 executes control for self-consumption of generated power without performing power sale in the time zone from 11:00 to 13:00 on the same day.

  In the output control schedule, the output control value of the power conditioner 12 is specified as 40% of the rated capacity in the time zone from 13:00 to 15:00 on the same day. For this reason, the solar power generation device 10 performs control which makes the upper limit of the output of the power conditioner 12 40% of a rated capacity in the time zone from 13:00 to 15:00 on the same day. However, when the private power consumption exceeds the AC output of the power conditioner 12 at the time of output control (output control value: 40%), it is allowed to increase the output of the power conditioner 12 to the private power consumption.

  In the output control schedule, the output control value of the power conditioner 12 is specified as 100% in the time zone from 15:00 to 24:00 on the same day. For this reason, the solar power generation device 10 does not perform output control of the power conditioner 12 in the time zone from 0:00 to 9:00 on the same day.

  In this output control schedule, for example, the time can be set in units of 30 minutes, the output control value can be set in units of 1%, and various different output controls can be set depending on each photovoltaic power generation apparatus. it can. The output control information includes, for example, a power plant ID in addition to the output control schedule.

  In addition, the output control schedule includes, for example, a fixed schedule that is a long-term output control schedule with 400 days as one cycle, and the schedule server 20 to the photovoltaic power generation apparatus 10 on the day before or on the morning of the output control. There is an update schedule to be distributed.

  In the update schedule, the fixed schedule that has been notified can be canceled or updated according to a sudden change in the weather, and the output limit value is considered to be looser than that in the fixed schedule. For this reason, the output control according to the update schedule has an economic advantage on the user side.

(Overview of setting information related to output control)
Output control for limiting the AC output of the photovoltaic power generation device (power conditioner) is performed for each photovoltaic power generation device. For this reason, the upper limit value of the AC output of the photovoltaic power generation apparatus 10 is based on the maximum generated power of the photovoltaic power generation apparatus 10, the output control value (%) presented in the output control schedule, and the like. It is calculated by.

  In order for the solar power generation device 10 to calculate the upper limit value, the solar power generation device 10 needs to have various types of information as setting information related to output control. Such setting information is created in association with the solar power generation device 10 in a monitoring server (not shown) that monitors the operation of the solar power generation device 10, and is transmitted from the monitoring server to the solar power generation device 10 via the Internet 30. And may be stored in the solar power generation device 10.

[Embodiment 2]
(Specific configuration of solar power generation device)
With reference to FIG. 3, the function of the power monitor 11 of the solar power generation device 10 will be described more specifically. FIG. 3 is a block diagram illustrating a main configuration of the power monitor 11 provided in the solar power generation device 10.

  The power monitor 11 includes a server communication unit 14, a memory 15, a controller (control device) 16, a PCS communication unit 17, and a GUI (Graphical User Interface) 18.

  The server communication unit 14 communicates with the schedule server 20 and receives output control information. The output control information received by the server communication unit 14 is transmitted to the controller 16 and stored in the memory 15. The server communication unit 14 accesses the schedule server 20 and receives the latest output control schedule (update schedule).

  The memory 15 is a storage medium that stores various types of information. The memory 15 includes, for example, output control information, setting information related to output control, history information (power generation history information) of output data of the power conditioner 12, history information (self-power consumption history information) of private power consumption data, and the like. Remember. Examples of the history information include information obtained by integrating hourly, daily, monthly, and yearly amounts of power such as generated power, sold power, purchased power, and power consumed by the household load 50. .

  In addition, for each electric device of the household load 50 connected to the power conditioner 12, home appliance power consumption information in which the type (name / model number) and power consumption are associated is registered in the memory 15. .

  The controller 16 includes an output control power calculation unit 161, an available power calculation unit 162, and a notification processing unit 163.

  The output control power calculator 161 uses the output control value (%) indicated in the output control schedule to output power control power (upper limit value of power that can be output from the power conditioner 12 in the output control period (implementation period)). W).

  For example, assuming that the rated capacity α of the power conditioner 12 is 5 kW and the capacity β of the solar panel 13 is 4 kW, in the acquired output control schedule, as shown in FIG. Assume that the output is to be suppressed to 40%. In this case, in the calculation for determining the output control power, which is the upper limit value of the power that can be output from the power conditioner 12, the smaller value of α and β is multiplied by the output control value.

  As a result, based on the output control schedule, the output control power that the power conditioner 12 can output in the time zone from 9:00 to 11:00 is calculated as 4 kW × 40% = 1.6 kW. The output control power obtained by the output control power calculation unit 161 in this way is transmitted to the power conditioner 12 via the PCS communication unit 17.

  For example, if the private power consumption at 10:00 on the same day is 1 kW, surplus power of 1.6 kW-1 kW = 0.6 kW is generated. This surplus power can be sold by causing the power grid 60 to flow backward.

  On the other hand, when the private power consumption at 10:00 on the same day is 1.8 kW, the private power consumption (1.8 kW) exceeds the output control power (1.6 kW) output from the power conditioner 12. In this case, since it is allowed to increase the output of the power conditioner 12 to the private power consumption, the controller 16 performs control to increase the output of the power conditioner 12 to 1.8 kW.

  The usable power calculation unit 162 calculates usable power that can be used by the user, including non-output power that is suppressed from being output from the power conditioner 12 when the output control is performed. In the present embodiment, the available power calculation unit 162 outputs power that can be output by the power conditioner 12 in a state where output control is not performed (that is, a state where the output control value is 100%) (generated power of the solar panel 13). ) And private power consumption is calculated as usable power usable by the user.

  FIG. 4 is an explanatory diagram for explaining an example of calculation processing of usable power by the usable power calculation unit 162. FIG. 4 shows an example of calculation processing of usable power when the output control value is 0%.

  Since power cannot be sold when the output control value is 0%, as shown in FIG. 4, the AC output of the power conditioner 12 is suppressed to an output level that can cover the private power consumption. In this case, among the outputable power, the non-output power that is suppressed from being output from the power conditioner 12 as the output control is performed is specified as the usable power. For this reason, the usable power calculation unit 162 can obtain usable power (unoutput power) by subtracting the private power consumption from the power that can be output from the power conditioner 12.

  FIG. 5 is an explanatory diagram for explaining another example of the calculation process of the usable power by the usable power calculation unit 162. FIG. 5 shows an example of calculation processing of usable power when the output control value is 40%.

  As shown in FIG. 5, when the output control value is 40%, surplus power is generated when the private power consumption is smaller than the output control power that is the upper limit value of the power that can be output from the power conditioner 12. This surplus electric power becomes electric power selling power sold by making the power grid 60 reversely flow. In this case, the total of the non-output power and the sold power that are suppressed from being output from the power conditioner 12 in accordance with the output control is specified as the usable power. For this reason, the usable power calculator 162 can obtain usable power (unoutput power + sold power) by subtracting the private power consumption from the power that can be output from the power conditioner 12.

  The available power calculation unit 162 obtains the predicted output possible power (predicted value of output possible power) and the predicted private power consumption (predicted value of private power consumption) of the power conditioner 12 during the output control period, and outputs the predicted output. The available power may be calculated using the available power and the predicted private power consumption. Thus, the calculation accuracy of the usable power can be improved by calculating the usable power using the predicted output possible power of the power conditioner 12 and the predicted private power consumption.

  In this case, the available power calculator 162 determines the past of the power conditioner 12 among the weather information of the day on which output control is performed and the history information stored in the memory 15 received via the Internet 30 and the router 40. Based on at least one of the power generation history information, the predictable output power can be obtained. In addition, the available power calculator 162 can obtain predicted private power consumption based on at least one of the above-described weather information and past private power consumption history information among the history information stored in the memory 15.

  Specifically, the available power calculation unit 162 predicts the output power (quantity) of the power conditioner 12 during the output control period based on weather data such as weather, precipitation probability, and predicted temperature shown in the acquired weather information. Ask for. Alternatively, the usable power calculation unit 162 calculates the predicted output possible power (amount) based on the past power generation history information of the power conditioner 12 based on, for example, the output power of the power conditioner 12 for the past several days. Ask. Furthermore, the usable power calculation unit 162 may obtain predicted output possible power (amount) based on weather information and past power generation history information of the power conditioner 12.

  In addition, the usable power calculation unit 162 obtains predicted private power consumption (amount) during the output control period based on weather data such as weather, precipitation probability, and predicted temperature shown in the acquired weather information. Alternatively, the available power calculator 162 obtains predicted private power consumption based on past private power consumption history information, for example, based on private power consumption on the same day in the past. Further, the usable power calculation unit 162 may obtain predicted private power consumption (amount) based on weather information and past private power consumption history information.

  The usable power calculated by the usable power calculation unit 162 in this way is transmitted to the notification processing unit 163.

  When the predetermined condition is satisfied, the notification processing unit 163 notifies the user of information regarding available power. The notification processing unit 163 prompts the user to use (consume) the available power by notifying the user of information relating to the available power based on the determination result. A specific example of the notification process in the notification processing unit 163 will be described later.

(Notification processing)
FIG. 6 is a process flow for explaining an example of the usable power notification process by the notification processing unit 163. As illustrated in FIG. 6, when the output control is started, the notification processing unit 163 acquires the usable power from the usable power calculation unit 162 (S1).

  Next, the notification processing unit 163 determines whether or not the power output from the power conditioner 12 is sold, that is, whether or not the power is flowing backward to the power system 60 (S2).

  When the power output from the power conditioner 12 is sold (YES in S2), the notification processing unit 163 reads out home appliance power consumption information related to electric devices such as a washing machine and an air conditioner from the memory 15, and the amount of power sold × The power sale unit price is compared with the power consumption (hereinafter referred to as home appliance power consumption) of an unused electric device × the power purchase unit price (S3).

  In the case of power sales amount × power sales unit price> consumer electronics power consumption × power purchase unit price (NO in S3), the notification processing unit 163 terminates the process without notifying the user of information regarding available power. In the case of electric power sales × electric power selling unit price> consumer electric power consumption × electric power purchasing unit price, the amount of money obtained by selling electric power is larger than the amount of money that can be saved when using electric equipment using available power. For this reason, since it is more advantageous for the user to continue to sell power when the above relational expression is satisfied, the notification processing unit 163 ends the process without notifying the user of information regarding available power. On the other hand, in the case of power sales amount × power sales unit price ≦ home appliance power consumption × power purchase unit price (YES in S3), the notification processing unit 163 compares the usable power calculated by the usable power calculation unit 162 with the home appliance power consumption. (S4).

  When usable power <consumed appliance power consumption (No in S4), the notification processing unit 163 ends the process without notifying the user of information relating to the usable power. On the other hand, when available power ≧ consumed appliance power consumption (YES in S4), the notification processing unit 163 displays information related to available power on the GUI 18 (S5).

  In S2, when the power output from the power conditioner 12 is not sold (NO in S2), the notification processing unit 163 determines whether or not power is being purchased (S6).

  When power is being purchased (YES in S6), no usable power that can be used by the user is generated, that is, usable power = 0. The notification processing unit 163 ends the process without notifying the user of information regarding available power. On the other hand, when the power is not purchased (NO in S6), the notification processing unit 163 compares the usable power calculated by the usable power calculating unit 162 with the home appliance power consumption (S7).

  When usable power <consumed power consumption (No in S7), the notification processing unit 163 ends the process without notifying the user of information relating to the usable power. On the other hand, when available power ≧ consumed appliance power consumption (YES in S7), the notification processing unit 163 displays information on available power on the GUI 18 (S5).

  7A and 7B are explanatory diagrams illustrating an example of a notification example displayed on the GUI 18. As illustrated in (a) and (b) of FIG. 7, the notification processing unit 163 includes information on electrical equipment that can be used using the usable power together with the usable power as information on the usable power. Is displayed on the GUI 18. The information regarding the electrical equipment includes the type (name) of the electrical equipment and the power consumption of each electrical equipment (home appliance power consumption). Further, the notification processing unit 163 may display a message for prompting the user to use an electric device that can be used using the available power on the GUI 18 as information related to the available power.

  FIG. 8 is an explanatory diagram illustrating another example of the notification example displayed on the GUI 18. FIG. 8 shows an example of a notification example when the power output from the power conditioner 12 is sold. As shown in FIG. 8, when the power sale power is generated, the notification processing unit 163 uses the amount of money obtained when the power sale is continued and the available power as the information related to the available power. A message including an amount that can be saved when the device is used in advance may be displayed on the GUI 18.

  By displaying such a message on the GUI 18, the user can easily grasp the electrical equipment that can be used using the available power, so the user can arbitrarily select the electrical equipment that the user wants to use. Can be used. For this reason, the user can be encouraged to use the available power, and the decrease in the AC output of the power conditioner 12 due to the execution of the output control can be suppressed.

  The controller 16 displays each electric device that can be used using the available power on the GUI 18 so that the user can select it, and the power source of the selected electric device based on the user's input operation (touch operation). You may control to put. Alternatively, the controller 16 may perform control to release the energy saving mode of the already operating electric device based on the user's input operation (touch operation) and operate the electric device in a mode with high power consumption. As a result, the user can control the operation of the electric device only by touching the button of the electric device displayed on the GUI 18, and thus the convenience of the user can be improved.

(Effect of solar power generation device)
As described above, the power monitor 11 of the solar power generation apparatus 10 acquires information on output control that controls the output of the power conditioner 12 of the solar power generation apparatus 10 that is interconnected with the power system, and performs output control. Accordingly, usable power including non-output power that is suppressed from being output from the power conditioner 12 is calculated, and information on the usable power is notified to the user.

  In the solar power generation device 10, the power monitor 11 notifies the user of information relating to usable power including unoutput power that is generated with the execution of output control. For this reason, it is possible to prompt the user to use the available power, and since the usage of the available power is not determined by the power monitor 11, the user uses the notified available power for any usage. Can do.

  Therefore, it is possible to realize the solar power generation device 10 that can suppress a decrease in the AC output of the power generation device due to the execution of the output control and can effectively use the AC output for any application that the user desires.

[Embodiment 3]
(Example of software implementation)
The control block (especially the controller 16) of the power monitor 11 may be realized by a logic circuit (hardware) formed in an integrated circuit (IC chip) or the like, or realized by software using a CPU (Central Processing Unit). May be.

  In the latter case, the power monitor 11 includes a CPU that executes instructions of a program that is software that realizes each function, a ROM (Read Only Memory) in which the program and various data are recorded so as to be readable by a computer (or CPU), or A storage device (these are referred to as “recording media”), a RAM (Random Access Memory) that expands the program, and the like are provided. And the objective of this invention is achieved when a computer (or CPU) reads the said program from the said recording medium and runs it. As the recording medium, a “non-temporary tangible medium” such as a tape, a disk, a card, a semiconductor memory, a programmable logic circuit, or the like can be used. The program may be supplied to the computer via an arbitrary transmission medium (such as a communication network or a broadcast wave) that can transmit the program. The present invention can also be realized in the form of a data signal embedded in a carrier wave in which the program is embodied by electronic transmission.

[Summary]
The control device (power monitor 11 / controller 16) of the power generation device (solar power generation device 10) according to the first aspect of the present invention acquires information on output control for controlling the output of the power generation device that is interconnected with the power system. In addition, it is possible to calculate usable power including unoutput power that is suppressed from being output from the power generation device with the execution of the output control, and to notify the user of information regarding the usable power.

  In the above configuration, the control device notifies the user of information relating to the usable power including the unoutput power generated with the execution of the output control. For this reason, it is possible to prompt the user to use the available power, and since the usage of the available power is not determined by the control device, the user can use the notified available power for any usage. it can.

  Therefore, according to said structure, the control apparatus of the electric power generating apparatus which suppresses the fall of the alternating current output of the electric power generating apparatus accompanying implementation of output control and can use effectively the said alternating current output for the user's request | requirement is realized. can do.

  In the control device according to aspect 2 of the present invention, in the above aspect 1, the information regarding the usable electric power can be used using the usable electric power. ) May be included.

  According to said structure, since the information regarding the electric equipment which can be used using the said usable electric power is contained in the information regarding the usable electric power, a user can use using the usable electric power. Possible electric devices can be easily grasped.

  The control device according to aspect 3 of the present invention may control the selected electric device when the user performs an input operation for selecting the notified electric device in the above-described aspect 2.

  According to the above configuration, the user can perform control such as operating the electrical device that he / she wants to use simply by performing an input operation to select the notified electrical device, thereby improving user convenience. Can do.

  The power generation device according to aspect 4 of the present invention is the above-described aspect 2 or 3, wherein the electric power consumption of the electrical device is home appliance power consumption. 4. The control device according to claim 2, wherein when the condition is satisfied, the user is not notified of information regarding the available power.

  In said structure, when satisfy | filling said relational expression, the money amount obtained by power sale will become larger than the money amount which can be saved when using an electric equipment using usable electric power. For this reason, when satisfying the above relational expression, it is more advantageous for the user to continue to sell power. Therefore, it is preferable not to notify the user of information regarding available power.

  The power generation device according to aspect 5 of the present invention is the power generation device according to aspects 1 to 4, wherein the power generation device calculates the usable power based on a difference between output power that the power generation device can output as AC power and private power consumption. Also good.

  According to the above configuration, the difference between the output power that can be output by the power generation device in a state where the output is not controlled and the private power consumption is calculated as the usable power, and thus the usable power can be easily calculated. Can do.

  The control apparatus which concerns on aspect 6 of this invention may calculate the said usable electric power in the said aspect 5 using the predicted value (predictable output possible electric power) of the said output possible electric power.

  According to the above configuration, the usable power is calculated using the predicted value of the power that can be output from the power generation device, so that the calculation accuracy of the usable power can be improved.

  The control apparatus which concerns on aspect 7 of this invention may calculate the said usable electric power in the said aspect 5 or 6 using the predicted value (predicted private power consumption) of the said private power consumption.

  According to said structure, since usable electric power is calculated using the predicted value of private power consumption, the calculation precision of usable electric power can be improved.

  The control device according to aspect 8 of the present invention is the control device according to aspect 8, wherein at least one of the weather information on the day when the output control is performed and the past power generation history information of the power generation device is used. A predicted value may be obtained.

  According to said structure, the predicted value of output possible electric power can be calculated | required with high precision by using at least one of the weather information of the day when output control is implemented, and the past power generation history information of a power generator.

  In the control device according to aspect 9 of the present invention, in the above aspect 7, the predicted value of the private power consumption is calculated using at least one of weather information on the day when the output control is performed and past private power consumption history information. You may ask for.

  According to said structure, the predicted value of private power consumption can be calculated | required with high precision by using at least one of the weather information on the day when output control is implemented, and past private power consumption historical information.

  A power generation apparatus interconnected with an electric power system according to aspect 10 of the present invention includes the control device according to aspects 1 to 9 described above.

  According to said structure, the fall of the alternating current output of the electric power generating apparatus accompanying implementation of output control can be suppressed, and the electric power generating apparatus which can be effectively utilized for the arbitrary uses which the user asks for the said alternating current output is realizable.

  In the control method according to aspect 11 of the present invention, information on output control for controlling the output of the power generation device that is interconnected with the power system is acquired, and output from the power generation device is suppressed as the output control is performed. The available power including the non-output power is calculated, and information on the available power is notified to the user of the power generation apparatus.

  According to said method, the fall of the alternating current output of the power generator accompanying implementation of output control is suppressed, and the control method of the power generator which can be effectively used for the arbitrary uses which the user asks for the AC output is realized. Can do.

  The control device according to each aspect of the present invention may be realized by a computer. In this case, the control device is realized by the computer by operating the computer as each unit (software element) included in the control device. A program for the control device and a computer-readable recording medium on which the program is recorded also fall within the scope of the present invention.

  The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope shown in the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments. Is also included in the technical scope of the present invention. Furthermore, a new technical feature can be formed by combining the technical means disclosed in each embodiment.

1 Solar power generation system 10 Solar power generation device (power generation device)
11 Power monitor (control device)
12 Power conditioner 16 Controller (control device)
50 Household load (electronic equipment)
60 Power System 161 Output Control Power Calculation Unit (Control Device)
162 Usable power calculator (control device)
163 Notification processing unit (control device)

Claims (12)

Obtain information on output control that controls the output of the power generator that is connected to the power system,
Calculate usable power including non-output power that is suppressed from being output from the power generation device with the execution of the output control,
A control device for a power generation device that notifies the user of the power generation device of information relating to the usable power.   The control device according to claim 1, wherein the information on the usable power includes information on an electrical device connected to the power generation device that can be used by using the usable power.   The control device according to claim 2, wherein when the user performs an input operation for selecting the notified type of the electric device, the selected electric device is controlled.   When the electric power consumption of the electric device is set as the electric power consumption of home appliances, if the relational expression of electric power sales x electric power selling unit price> electric home appliance electric power consumption x electric power purchase unit price is satisfied, information regarding the usable electric power is not notified to the user. The control device according to claim 2 or 3, characterized in that   The control according to any one of claims 1 to 4, wherein the usable power is calculated based on a difference between output power that can be output as AC power by the power generation device and private power consumption. apparatus.   The control apparatus according to claim 5, wherein the usable power is calculated using a predicted value of the outputtable power.   The control device according to claim 5, wherein the usable power is calculated using the predicted value of the private power consumption.   The control according to claim 6, wherein a predicted value of the outputtable power is obtained using at least one of weather information on a date on which the output control is performed and past power generation history information of the power generation device. apparatus.   The control device according to claim 7, wherein a predicted value of the private power consumption is obtained using at least one of weather information on a date when the output control is performed and past private power consumption history information.   A power generator that is connected to an electric power system, comprising the control device according to any one of claims 1 to 9. Obtain information on output control that controls the output of the power generator that is connected to the power system,
Calculate usable power including non-output power that is suppressed from being output from the power generation device with the execution of the output control,
A method for controlling a power generation apparatus, comprising: notifying a user of the power generation apparatus of information relating to the usable power.   The program for making a computer perform the control method of the electric power generating apparatus of Claim 11.

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