JP2014068502A - Photovoltaic power generation power control system, photovoltaic power generation power control method, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To appropriately switch a power selling mode and indoor power consumption/storage battery charging on the basis of an environmental status.SOLUTION: A power controller comprises: distribution line voltage value acquisition means for acquiring a distribution line voltage value; weather information acquisition means for acquiring weather information from a database; and control means for performing switching control of a supply destination of power generated in a solar panel on the basis of the acquired information. The control means performs switching to a mode in which the power generated in the solar panel is consumed within doors or a mode in which the power is consumed within doors while charging a storage battery, when the acquired distribution line voltage value is equal to or larger than a predetermined voltage value and it is predicted from the acquired weather information that fine weather lasts for a period equal to or more than a predetermined time.

Description

  The present invention relates to a photovoltaic power generation system, and more particularly to a photovoltaic power generation control system, a photovoltaic power generation control method, and a program that appropriately switch between a power sale mode, home consumption, and storage battery charging according to environmental conditions.

  In recent years, due to global warming and radioactive contamination caused by the nuclear accident, interest in the environment and energy is rapidly increasing. Under such circumstances, solar cells are expected from all over the world as a renewable and inexhaustible clean energy source. By the way, of course, with solar power generation, energy can be extracted only during the daytime when the sun is on.

  In solar power generation, the DC output from the solar panel is converted into AC by an inverter, and this AC conversion output is linked to a power system such as a commercial AC system that we use everyday, that is, used together with the power system. . For this reason, if a solar panel is installed on the roof, no installation land is required, and therefore, a solar power generation system is expected to spread (for example, see Patent Document 1).

Japanese Patent No. 2710736

  However, in such a conventional photovoltaic power generation system, considering the safety to the power grid in the event of a power failure, only the function that can consume only a part of the generated power in the house without implementing a reverse power flow is implemented. It was. Further, in the future, when solar power generation systems are widely spread, it has been studied to suppress power generation and prevent reverse power flow to the power grid when surplus power is predicted in a specific area.

  In other words, in the conventional system, in the event of a power outage, if a part of the power generated by solar power is wasted or surplus power generation is expected in a specific area, power generation by solar power must be suppressed There is. This is because the conventional system has a problem that it is not possible to appropriately perform control for switching between reverse power flow and home consumption using external information such as weather information and power rate information.

  Therefore, the present invention has been made in view of the above-described problems, and a photovoltaic power control system and a photovoltaic power control that appropriately switch between a power sale mode, home consumption, and storage battery charging according to environmental conditions. It aims to provide a method.

  The present invention proposes the following matters in order to solve the above problems. In addition, in order to make an understanding easy, although the code | symbol corresponding to embodiment of this invention is attached | subjected and demonstrated, it is not limited to this.

  (1) The present invention includes a solar panel (for example, equivalent to the solar panel 100 of FIG. 1) and a power control device (for example, the power control device 200 of FIG. 1) that controls the power generated by the solar panel. Equivalent), a database for storing information related to power consumption (for example, equivalent to the database 400 in FIG. 1), and a storage battery (for example, equivalent to the storage battery 300 in FIG. 1) for storing the power generated by the solar panel. In the photovoltaic power generation control system, the power control device obtains distribution line voltage value acquisition means (for example, equivalent to the distribution line voltage value acquisition unit 241 in FIG. 2), and from the database. A weather information acquisition means (for example, equivalent to the weather information acquisition unit 242 in FIG. 2) for acquiring weather information and a supply destination of power generated by the solar panel are switched based on the acquired information. Control means (e.g., corresponding to the control unit 290 in FIG. 2), and the control means has a voltage value greater than or equal to a predetermined voltage value acquired from the acquired weather information in advance. When it is predicted that clear weather will continue for a predetermined time or longer, switching to a mode in which the power generated by the solar panel is consumed in the home or a mode in which the power is consumed while charging the storage battery A featured photovoltaic power control system is proposed.

  According to this invention, the distribution line voltage value acquisition means of the power control apparatus acquires the distribution line voltage value. The weather information acquisition means acquires weather information from the database. The control means performs switching control based on information obtained from the supply destination of the power generated by the solar panel. Here, the control means generates power with the solar panel when the acquired distribution line voltage value is equal to or higher than a predetermined voltage value and the clear weather is predicted to continue for a predetermined time or longer from the acquired weather information. The mode is switched to a mode for consuming the generated power at home, or a mode for consuming at home while charging the storage battery. In other words, in this case, it is determined that surplus power from solar power generation occurs in a certain area of the home, and the power generated by solar power generation is consumed at home and the storage battery is charged, so that the generated power can be used without waste. be able to.

  (2) The present invention includes a solar panel (for example, equivalent to the solar panel 100 in FIG. 1) and a power control device (for example, the power control device 200 in FIG. 1) that controls the power generated by the solar panel. Equivalent), a database for storing information related to power consumption (for example, equivalent to the database 400 in FIG. 1), and a storage battery (for example, equivalent to the storage battery 300 in FIG. 1) for storing the power generated by the solar panel. In the photovoltaic power generation control system, the power control device obtains distribution line voltage value acquisition means (for example, equivalent to the distribution line voltage value acquisition unit 241 in FIG. 2), and from the database. A weather information acquisition means (for example, equivalent to the weather information acquisition unit 242 in FIG. 2) for acquiring weather information and a supply destination of power generated by the solar panel are switched based on the acquired information. Control means (e.g., corresponding to the control unit 290 in FIG. 2), and the control means has a voltage value greater than or equal to a predetermined voltage value and the weather information is obtained from the acquired weather information. The solar power generation is characterized by switching to a mode in which the power generated by the solar panel is consumed in the house in real time or a mode in which the battery is consumed while charging the storage battery when it is sunny A power control system is proposed.

  According to this invention, the distribution line voltage value acquisition means of the power control apparatus acquires the distribution line voltage value. The weather information acquisition means acquires weather information from the database. The control means performs switching control based on information obtained from the supply destination of the power generated by the solar panel. Here, when the acquired distribution line voltage value is equal to or higher than the predetermined voltage value and the weather is clear from the acquired weather information, the control means consumes the power generated by the solar panel in the house in real time. Switch to a mode that consumes at home while charging the storage battery. In other words, in this case, it is determined in real time that surplus power from solar power generation occurs in an area at home, and the generated power is wasted by consuming the power generated by solar power at home or charging the storage battery. Moreover, it can be used more efficiently.

  (3) The present invention includes a solar panel (for example, equivalent to the solar panel 100 of FIG. 1) and a power control device (for example, the power control device 200 of FIG. 1) that controls the power generated by the solar panel. Equivalent), a database for storing information related to power consumption (for example, equivalent to the database 400 in FIG. 1), and a storage battery (for example, equivalent to the storage battery 300 in FIG. 1) for storing the power generated by the solar panel. In the photovoltaic power generation control system, the power control device obtains a distribution line voltage value acquisition unit (for example, equivalent to the distribution line voltage value acquisition unit 241 in FIG. 5) for acquiring a distribution line voltage value, and the database. The power peak information acquisition means (for example, equivalent to the power peak information acquisition unit 244 in FIG. 5) for acquiring the power peak information and the power for acquiring the electricity rate information from the database. Charge information acquisition means (for example, equivalent to the electricity charge information acquisition unit 243 in FIG. 5), weather information acquisition means for acquiring weather information from the database (for example, equivalent to the weather information acquisition unit 242 in FIG. 5), load Detecting means for detecting the power consumption status in the control unit, and a control means for switching the supply destination of the power generated by the solar panel based on the acquired information (for example, corresponding to the control unit 291 in FIG. 5); And the control means analyzes the acquired distribution line voltage value, power peak information, electricity rate information, weather information and the power consumption status at the detected load, and the power consumption in the home is the most economical. If it is determined that the solar battery is suitable, the solar power is switched to a mode for consuming the power generated by the solar panel at home, or a mode for consuming at home while charging the storage battery. We have proposed a power generation power control system.

  According to this invention, the distribution line voltage value acquisition means of the power control apparatus acquires the distribution line voltage value. The power peak information acquisition means acquires power peak information from the database. The power rate information acquisition unit acquires the electricity rate information from the database. The weather information acquisition means acquires weather information from the database. The detection means detects the power consumption status at the load. The control means performs switching control based on information obtained from the supply destination of the power generated by the solar panel. Here, the control means analyzes the acquired distribution line voltage value, power peak information, electricity rate information, weather information and the power consumption status at the detected load, and the power consumption in the home is the most economical. If it is determined, the mode is switched to the mode in which the electric power generated by the solar panel is consumed in the house or the mode in which the battery is consumed while charging the storage battery. Therefore, the electric power generated by solar power generation can be used economically and without waste.

  (4) The present invention includes a solar panel (for example, equivalent to the solar panel 100 of FIG. 1) and a power control device (for example, the power control device 200 of FIG. 1) that controls the power generated by the solar panel. Equivalent), a database for storing information related to power consumption (for example, equivalent to the database 400 in FIG. 1), and a storage battery (for example, equivalent to the storage battery 300 in FIG. 1) for storing the power generated by the solar panel. In the photovoltaic power generation control system, the power control device includes a distribution line voltage value acquisition unit (for example, equivalent to the distribution line voltage value acquisition unit 241 in FIG. 7) for acquiring a distribution line voltage value, and a load. Detection means for detecting power consumption status, measurement means for measuring the amount of generated power in the solar panel, residual capacity detection means for detecting the remaining capacity of the storage battery, and power generated by the solar panel Control means (for example, equivalent to the control unit 292 in FIG. 7) based on the acquired information, and the control means determines the power failure state from the acquired distribution line voltage value. Detecting and consuming electric power generated by the solar panel when the electric power generated by the solar panel is smaller than the electric energy consumed by the load and the remaining capacity of the storage battery is below a predetermined range A solar power generation control system has been proposed which is characterized by switching to a mode to stop or a mode to stop consumption at home.

  According to this invention, the distribution line voltage value acquisition means of the power control apparatus acquires the distribution line voltage value. The detection means detects the power consumption status at the load. The measuring means measures the amount of power generated by the solar panel. The remaining capacity detection means detects the remaining capacity of the storage battery. The control means performs switching control based on information obtained from the supply destination of the power generated by the solar panel. Here, the control means detects a power failure state from the acquired distribution line voltage value, the amount of power generated by the solar panel is smaller than the amount of power consumed by the load, and the remaining capacity of the storage battery is below a predetermined range In this case, the mode is switched to a mode in which the electric power generated by the solar panel is consumed at home or a mode in which consumption is stopped at home. Therefore, at the time of a power failure, when the amount of power generated by the solar panel is smaller than the amount of power consumed by the load, and the residual capacity of the storage battery is below a predetermined range, By switching to a consumption mode or a mode in which consumption is stopped at home, the power generated by solar power generation can be used effectively without waste.

  (5) The present invention provides a solar panel (for example, equivalent to the solar panel 100 in FIG. 1) and a power control device (for example, the power control device 200 in FIG. 1) that controls the power generated by the solar panel. Equivalent), a database for storing information related to power consumption (for example, equivalent to the database 400 in FIG. 1), and a storage battery (for example, equivalent to the storage battery 300 in FIG. 1) for storing the power generated by the solar panel. In the photovoltaic power generation control system, the power control device includes a distribution line voltage value acquisition unit (for example, equivalent to the distribution line voltage value acquisition unit 241 in FIG. 7) for acquiring a distribution line voltage value, and a load. Detection means for detecting power consumption status, measurement means for measuring the amount of generated power in the solar panel, residual capacity detection means for detecting the remaining capacity of the storage battery, and power generated by the solar panel Control means (for example, equivalent to the control unit 292 in FIG. 7) based on the acquired information, and the control means determines the power failure state from the acquired distribution line voltage value. Detecting and consuming electric power generated by the solar panel when the electric power generated by the solar panel is larger than the electric power consumed by the load and the remaining capacity of the storage battery is equal to or greater than a predetermined range. A photovoltaic power generation control system is proposed that switches to a mode to be used or to a mode to be consumed at home while charging the storage battery.

  According to this invention, the distribution line voltage value acquisition means of the power control apparatus acquires the distribution line voltage value. The detection means detects the power consumption status at the load. The measuring means measures the amount of power generated by the solar panel. The remaining capacity detection means detects the remaining capacity of the storage battery. The control means performs switching control based on information obtained from the supply destination of the power generated by the solar panel. Here, when the control means detects a power failure state from the acquired distribution line voltage value, the generated power amount in the solar panel is larger than the consumed power amount in the load, and the remaining capacity of the storage battery is equal to or greater than a predetermined range. In addition, the power generated by solar power generation can be effectively used without waste by switching to the mode of consuming the power generated by the solar panel at home or switching to the mode of consuming at home while charging the storage battery. Can do.

  (6) The present invention relates to a solar panel (for example, equivalent to the solar panel 100 in FIG. 1) and a power control apparatus (for example, the power control apparatus 200 in FIG. 1) that controls the power generated by the solar panel. Equivalent), a database for storing information related to power consumption (for example, equivalent to the database 400 in FIG. 1), and a storage battery (for example, equivalent to the storage battery 300 in FIG. 1) for storing the power generated by the solar panel. A photovoltaic power generation control method in a photovoltaic power generation control system, wherein the power control device obtains weather information from a distribution line voltage value and the database (for example, corresponding to step S101 in FIG. 3). ) And the power control device clears the acquired distribution line voltage value not less than a predetermined voltage value and not less than a predetermined time from the acquired weather information. Is predicted to continue (for example, equivalent to “Yes” in step S102 of FIG. 3) or the mode in which the electric power generated by the solar panel is consumed in the home (for example, equivalent to step S109 of FIG. 3) or And a second step (for example, corresponding to step S108 in FIG. 3) of switching to a mode for consuming at home while charging the storage battery, and proposing a photovoltaic power generation control method, ing.

  According to this invention, the power control device acquires the distribution line voltage value and the weather information from the database, the acquired distribution line voltage value is equal to or higher than the predetermined voltage value, and is predetermined from the acquired weather information. When it is predicted that clear weather will continue for more than the time, the mode is switched to a mode in which the electric power generated by the solar panel is consumed in the home or a mode in which the power is consumed while charging the storage battery. In other words, in this case, it is determined that surplus power from solar power generation occurs in a certain area of the home, and the power generated by solar power generation is consumed at home and the storage battery is charged, so that the generated power can be used without waste. be able to.

  (7) The present invention provides a solar panel (for example, equivalent to the solar panel 100 in FIG. 1) and a power control device (for example, the power control device 200 in FIG. 1) that controls the power generated by the solar panel. Equivalent), a database for storing information related to power consumption (for example, equivalent to the database 400 in FIG. 1), and a storage battery (for example, equivalent to the storage battery 300 in FIG. 1) for storing the power generated by the solar panel. A photovoltaic power control method in a photovoltaic power control system, wherein the power control device acquires power peak information, electricity rate information, and weather information from the database, and acquires a distribution line voltage value. A first step (for example, corresponding to step S201 in FIG. 6) for detecting the power consumption status at the load, and the power control device When analyzing the information, electricity rate information, weather information and the power consumption status at the detected load and determining that the power consumption in the home is the most economical (for example, corresponding to step S203 in FIG. 6) In addition, a mode in which the electric power generated by the solar panel is consumed at home (for example, equivalent to step S210 in FIG. 6) or a mode in which the storage battery is consumed while being charged (for example, step S209 in FIG. 6). A solar power generation control method characterized by comprising: a second step of switching to

  According to this invention, the power control apparatus acquires the power peak information, the electricity rate information, and the weather information from the database, acquires the distribution line voltage value, detects the power consumption status at the load, and acquires the power line information. Analyzing the power peak information, electricity price information, weather information and the power consumption status at the detected load, and determining that the power consumption in the home is the most economical, the power generated by the solar panel Switch to a mode for consuming at home or a mode for consuming at home while charging the storage battery. Therefore, the electric power generated by solar power generation can be used economically and without waste.

  (8) The present invention includes a solar panel (for example, equivalent to the solar panel 100 of FIG. 1) and a power control device (for example, the power control device 200 of FIG. 1) that controls the power generated by the solar panel. Equivalent), a database for storing information related to power consumption (for example, equivalent to the database 400 in FIG. 1), and a storage battery (for example, equivalent to the storage battery 300 in FIG. 1) for storing the power generated by the solar panel. A photovoltaic power control method in a photovoltaic power control system, wherein the power control device acquires a distribution line voltage value, a power consumption state at a load, and a generated power amount at the solar panel. Step (for example, corresponding to step S301 and step S303 in FIG. 8) and a second step in which the power control device detects the remaining capacity of the storage battery (for example, FIG. 8). Step S304 and step S308) and the power control device detects a power failure state from the acquired distribution line voltage value (for example, step S301 in FIG. 8), and generates power in the solar panel. Is smaller than the amount of power consumed at the load, and when the remaining capacity of the storage battery is less than or equal to a predetermined range, the power generated by the solar panel is consumed in a home mode or the consumption is stopped in the home mode. The third step of switching (e.g., corresponding to step S305, step S306, and step S307 in FIG. 8) and the power control device detects a power failure state from the acquired distribution line voltage value, and the solar panel When the amount of generated power is greater than the amount of power consumed by the load and the remaining capacity of the storage battery is greater than or equal to a predetermined range, And a fourth step (for example, equivalent to step S309 and step S310 in FIG. 8) for switching to a mode for consuming the generated power at home or switching to a mode for consuming at home while charging the storage battery. A characteristic photovoltaic power generation control method is proposed.

  According to this invention, the power control device acquires the distribution line voltage value, the power consumption status at the load, and the generated power amount at the solar panel, detects the remaining capacity of the storage battery, and acquires the acquired distribution line voltage value. The power generated by the solar panel is consumed at home when the power generation amount at the solar panel is smaller than the power consumption at the load and the remaining capacity of the storage battery is below the specified range. Switch to the mode to stop or to stop consumption at home, detect power outage from the acquired distribution line voltage value, the amount of power generated by the solar panel is larger than the amount of power consumed by the load, and the remaining capacity of the storage battery When the value is equal to or greater than the predetermined range, the mode is switched to a mode in which the electric power generated by the solar panel is consumed in the home or a mode in which the power is consumed while charging the storage battery. Therefore, the electric power generated by solar power generation can be used effectively without waste.

  (9) The present invention includes a solar panel (for example, equivalent to the solar panel 100 of FIG. 1) and a power control device (for example, the power control device 200 of FIG. 1) that controls the power generated by the solar panel. Equivalent), a database for storing information related to power consumption (for example, equivalent to the database 400 in FIG. 1), and a storage battery (for example, equivalent to the storage battery 300 in FIG. 1) for storing the power generated by the solar panel. A program for causing a computer to execute a photovoltaic power control method in a photovoltaic power control system, wherein the power control device acquires weather information from a distribution line voltage value and the database (for example, , Corresponding to step S101 in FIG. 3), and the power control device has the acquired distribution line voltage value equal to or higher than a predetermined voltage value and the acquisition Mode in which the power generated by the solar panel is consumed at home when it is predicted that clear weather will continue for a predetermined time or longer from the weather information (for example, equivalent to “Yes” in step S102 of FIG. 3) (E.g., corresponding to step S109 in FIG. 3) or causing the computer to execute a second step (e.g., corresponding to step S108 in FIG. 3) of switching to the home consumption mode while charging the storage battery. A program for this is proposed.

  According to this invention, the power control device acquires the distribution line voltage value and the weather information from the database, the acquired distribution line voltage value is equal to or higher than the predetermined voltage value, and is predetermined from the acquired weather information. When it is predicted that clear weather will continue for more than the time, the mode is switched to a mode in which the electric power generated by the solar panel is consumed in the home or a mode in which the power is consumed while charging the storage battery. In other words, in this case, it is determined that surplus power from solar power generation occurs in a certain area of the home, and the power generated by solar power generation is consumed at home and the storage battery is charged, so that the generated power can be used without waste. be able to.

  (10) The present invention relates to a solar panel (for example, equivalent to the solar panel 100 in FIG. 1) and a power control apparatus (for example, the power control apparatus 200 in FIG. 1) that controls the power generated by the solar panel. Equivalent), a database for storing information related to power consumption (for example, equivalent to the database 400 in FIG. 1), and a storage battery (for example, equivalent to the storage battery 300 in FIG. 1) for storing the power generated by the solar panel. A program for causing a computer to execute a photovoltaic power control method in a photovoltaic power control system, wherein the power controller acquires power peak information, electricity rate information, and weather information from the database. The first step of acquiring the distribution line voltage value and detecting the power consumption state at the load (for example, corresponding to step S201 in FIG. 6) The power control device analyzes the acquired power peak information, electricity rate information, weather information and the power consumption status at the detected load, and determines that the power consumption in the home is the most economical. In a case (for example, equivalent to step S203 in FIG. 6), a mode in which the electric power generated by the solar panel is consumed in the home (for example, equivalent to step S210 in FIG. 6), or while charging the storage battery, A program for causing a computer to execute a second step of switching to a mode (for example, corresponding to step S209 in FIG. 6) is proposed.

  According to this invention, the power control apparatus acquires the power peak information, the electricity rate information, and the weather information from the database, acquires the distribution line voltage value, detects the power consumption status at the load, and acquires the power line information. Analyzing the power peak information, electricity price information, weather information and the power consumption status at the detected load, and determining that the power consumption in the home is the most economical, the power generated by the solar panel Switch to a mode for consuming at home or a mode for consuming at home while charging the storage battery. Therefore, the electric power generated by solar power generation can be used economically and without waste.

  (11) The present invention includes a solar panel (for example, equivalent to the solar panel 100 of FIG. 1) and a power control device (for example, the power control device 200 of FIG. 1) that controls the power generated by the solar panel. Equivalent), a database for storing information related to power consumption (for example, equivalent to the database 400 in FIG. 1), and a storage battery (for example, equivalent to the storage battery 300 in FIG. 1) for storing the power generated by the solar panel. A photovoltaic power control method in a photovoltaic power control system, wherein the power control device acquires a distribution line voltage value, a power consumption state at a load, and a generated power amount at the solar panel. Step (for example, corresponding to step S301 and step S303 in FIG. 8) and a second step in which the power control device detects the remaining capacity of the storage battery (for example, FIG. And the power control device detects a power failure state from the acquired distribution line voltage value (for example, corresponds to step S301 in FIG. 8), and the generated power in the solar panel A mode in which the power generated by the solar panel is consumed at home or the consumption is stopped in the home when the amount is smaller than the power consumption at the load and the remaining capacity of the storage battery is below a predetermined range And the power control device detects a power outage state from the acquired distribution line voltage value, and the solar panel detects the power outage state from a third step (for example, corresponding to step S305, step S306, and step S307 in FIG. 8). When the amount of generated power is larger than the amount of power consumed at the load and the remaining capacity of the storage battery is equal to or greater than a predetermined range, the solar panel The computer executes a fourth step (for example, equivalent to steps S309 and S310 in FIG. 8) for switching to a mode in which the electric power is consumed in the home or a mode in which the storage battery is charged while being consumed at home. We are proposing a program to make it happen.

  According to this invention, the power control device acquires the distribution line voltage value, the power consumption status at the load, and the generated power amount at the solar panel, detects the remaining capacity of the storage battery, and acquires the acquired distribution line voltage value. The power generated by the solar panel is consumed at home when the power generation amount at the solar panel is smaller than the power consumption at the load and the remaining capacity of the storage battery is below the specified range. Switch to the mode to stop or to stop consumption at home, detect power outage from the acquired distribution line voltage value, the amount of power generated by the solar panel is larger than the amount of power consumed by the load, and the remaining capacity of the storage battery When the value is equal to or greater than the predetermined range, the mode is switched to a mode in which the electric power generated by the solar panel is consumed in the home or a mode in which the power is consumed while charging the storage battery. Therefore, the electric power generated by solar power generation can be used effectively without waste.

  According to the present invention, there is an effect that power generated by solar power generation can be used without waste during a long-time power outage or surplus power generation due to a natural disaster such as an earthquake or a typhoon or a large-scale accident. In addition, there is an effect that the power used by the power company can be suppressed by storing the power generated by the solar power generation in the storage battery and using the power from the storage battery at the peak of power use. In addition, by applying it to ordinary homes and small buildings, the power generated by solar power generation is normally supplied as clean energy to the area as much as possible. There is an effect that it can be used continuously.

It is a figure which shows the structure of the photovoltaic power generation control system of this invention. It is a figure which shows the structure of the electric power control apparatus which concerns on the 1st Embodiment of this invention. It is a figure which shows the process of the photovoltaic power generation control system which concerns on the 1st Embodiment of this invention. It is a conceptual diagram regarding the surplus electric power which concerns on the 1st Embodiment of this invention. It is a figure which shows the structure of the power control apparatus which concerns on the 2nd Embodiment of this invention. It is a figure which shows the process of the photovoltaic power generation control system which concerns on the 2nd Embodiment of this invention. It is a figure which shows the structure of the power control apparatus which concerns on the 3rd Embodiment of this invention. It is a figure which shows the process of the photovoltaic power generation control system which concerns on the 3rd Embodiment of this invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
Note that the constituent elements in the present embodiment can be appropriately replaced with existing constituent elements and the like, and various variations including combinations with other existing constituent elements are possible. Therefore, the description of the present embodiment does not limit the contents of the invention described in the claims.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 8.

<First Embodiment>
A first embodiment of the present invention will be described with reference to FIGS.
In addition, this embodiment is the electric power generated by the solar panel when the distribution line voltage value is equal to or higher than a predetermined voltage value and it is predicted that clear weather will continue for a predetermined time or longer from the acquired weather information. Is switched to the mode of consuming at home or the mode of consuming at home while charging the storage battery.

<Configuration of photovoltaic power control system>
As shown in FIG. 1, the photovoltaic power generation control system according to the present invention includes a solar panel 100, a power control device 200, a storage battery 300, a database 400, and a load device 500.

  A solar panel 100 is a panel in which a number of solar cells are arranged and interconnected. The amount of power that can be generated by one solar panel 100 is limited, and usually a plurality of solar panels 100 are installed side by side. This is called a solar cell array. The solar panel 100 uses light energy (photons) from the sun to generate electricity by applying the photovoltaic effect. The module structure is held in the upper layer (surface plate structure) or in the lower layer (substrate structure). Commonly used are solar cells using wafer-based crystalline silicon and thin-film solar cells using cadmium telluride or silicon.

  The power control apparatus 200 controls the power generated by the solar panel according to each situation. Details will be described later.

  The storage battery 300 is a battery (chemical battery) that can be used as a battery by storing electricity by charging and can be used repeatedly. A typical example is a lithium ion battery. This lithium ion battery is a kind of non-aqueous electrolyte secondary battery, and is a secondary battery in which lithium ions in the electrolyte bear electric conduction. Currently, lithium metal oxides are used for the positive electrode and carbon materials such as graphite are used for the negative electrode.

  The database 400 is a storage device that stores information such as weather information, power peak information, and power rate information. The load device 500 is a device that consumes power, and examples thereof include a television, a personal computer, a lighting fixture, and an air conditioner.

<Configuration of power control device>
The configuration of the power control apparatus according to this embodiment will be described with reference to FIG. As shown in FIG. 2, the power control apparatus according to the present embodiment includes an MPPT DC / DC converter 210, a switching unit 220, a DC / AC inverter 230, a distribution line voltage value acquisition unit 241, and a weather information acquisition unit. 242, DC power distribution unit 260, AC power distribution unit 270, AC / DC converter 280, and control unit 290.

  The MPPT DC / DC converter 210 includes an MPPT controller and a DC / DC converter. The MPPT controller is mounted on the solar panel 100 used for solar power generation, and has an optimal current x voltage that can maximize the output. This is a control device that can automatically determine a value (maximum power point or optimum operating point). The electric power is obtained by the product of the current and the voltage, and the value of the electric power that can be extracted can be maximized by controlling the voltage and the current with an appropriate balance. That is, the solar panel 100 can obtain the maximum output according to the installation location and the weather by the MPPT controller automatically controlling.

  The switching unit 220 switches the power supplied from the MPPT DC / DC converter 210 to the power selling power system or the storage battery 300 or the load device 500. The DC / AC inverter 230 converts the power from the MPPT DC / DC converter 210 into AC power in order to supply power to the power selling power system.

  The distribution line voltage value acquisition unit 241 acquires the distribution line voltage value. The weather information acquisition unit 242 acquires weather information from the database 400. The DC power distribution unit 260 supplies DC power to the DC load device. The AC power distribution unit 270 supplies AC power to the AC load device. AC / DC converter 280 converts AC power from the purchased power system into DC power.

  The control unit 290 performs switching control based on information obtained from a supply destination of power generated by the solar panel according to a control program stored in advance. Specifically, in the present embodiment, when the acquired distribution line voltage value is greater than or equal to a predetermined voltage value and sunny weather is predicted to continue for a predetermined time or longer from the acquired weather information, Switch to a mode in which the power generated by the panel is consumed in the house or a mode in which the battery is consumed while charging the storage battery.

<Processing of photovoltaic power control system>
Processing of the photovoltaic power generation control system according to the present embodiment will be described using FIG.

  First, the control unit 290 acquires the distribution line voltage value and also acquires weather information (step S101). The control unit 290 determines surplus power from the acquired distribution line voltage value and weather information (step S102). As shown in FIG. 4, the surplus power is determined when the supply voltage value of the electric power company is larger than the surplus power determination voltage value (SVmax) and the duration of the clear sky is longer than the clear sky determination time. If the supply voltage value of the power company is smaller than the surplus power determination voltage value (SVmax) and the duration of fine weather is shorter than the clear sky determination time, it is determined that there is no surplus power.

  When the control unit 290 determines that there is no surplus power (“None” in Step S102), the entire amount generated by the solar panel 100 is sold (Step S103), and when it is determined that there is surplus power (Step S103). In step S102 “Yes”, the capacity of the storage battery 300 is confirmed (step S104).

  As a result of checking the capacity of the storage battery 300, if there is no free capacity in the storage battery 300 ("no space" in step S104), partial power is supplied from the storage battery 300 to the load device 500 (step S105), and the process returns to step S104. The capacity of the storage battery 300 is confirmed. On the other hand, as a result of checking the capacity of the storage battery 300, when the capacity of the storage battery 300 is empty (“available” in step S104), the mode is switched to the home consumption mode (step S106).

  Next, the generated power and the load power consumption are compared (step S107). When the generated power (PV) is larger than the load power consumption (“PV> load” in step S107), the storage battery 300 is charged. However, power is supplied to the load device 500 (step S108). On the other hand, the generated power and the load power consumption are compared (step S107). When the generated power (PV) is smaller than the load power consumption (“PV <load” in step S107), power is supplied to the load device 500. (Step S109).

  As described above, according to the present embodiment, when it is determined that surplus power from solar power generation occurs in an area at home, the power from solar power generation is consumed at home or charged to a storage battery. By doing so, the generated power can be used without waste.

  In this embodiment, it is determined that there is surplus power when the supply voltage value of the power company is larger than the surplus power determination voltage value (SVmax) and the duration of fine weather is longer than the clear sky determination time. When the supply voltage value of the company is larger than the surplus power determination voltage value (SVmax) and the weather is fine, the supply destination of the generated power in the solar panel 100 may be switched in real time.

<Second Embodiment>
A second embodiment of the present invention will be described with reference to FIGS.
Note that this embodiment analyzes the acquired power peak information, electricity price information, weather information and the power consumption status at the detected load, and determines that the power consumption in the home is the most economical. The mode is to switch to the mode in which the electric power generated by the solar panel is consumed in the house or the mode in which the battery is consumed while charging the storage battery.

<Configuration of power control device>
The configuration of the power control apparatus according to this embodiment will be described with reference to FIG. As shown in FIG. 2, the power control apparatus according to the present embodiment includes an MPPT DC / DC converter 210, a switching unit 220, a DC / AC inverter 230, a distribution line voltage value acquisition unit 241, and a weather information acquisition unit. 242, electricity price information acquisition unit 243, power peak information acquisition unit 244, DC power distribution unit 260, AC power distribution unit 270, AC / DC converter 280, and control unit 291. In addition, about the component which attaches | subjects the same code | symbol as 1st Embodiment, since it has the same function, the detailed description is abbreviate | omitted.

  The electricity bill information acquisition unit 243 obtains electricity bill information from the database 400. The power peak information acquisition unit 244 acquires power peak information from the database 400. When the control unit 291 analyzes the acquired power peak information, electricity rate information, weather information and the power consumption status at the detected load, and determines that the power consumption in the home is the most economical, The mode is switched to a mode in which the electric power generated by the optical panel is consumed in the house or a mode in which the battery is consumed while charging the storage battery.

<Processing of photovoltaic power control system>
The process of the photovoltaic power generation control system according to this embodiment will be described with reference to FIG.

  First, the control unit 290 acquires electricity rate information, power peak information, and distribution line voltage value, and also acquires weather information (step S201). The control unit 290 determines surplus power from the acquired distribution line voltage value and weather information (step S202). As shown in FIG. 4, the surplus power is determined when the supply voltage value of the electric power company is larger than the surplus power determination voltage value (SVmax) and the duration of the clear sky is longer than the clear sky determination time. If the supply voltage value of the electric power company is smaller than the surplus power determination voltage value (SVmax), it is determined that there is no surplus power.

  When the control unit 290 determines that there is no surplus power (“none” in step S202), the power price is compared (step S203), and when the power selling price is higher than the power buying price (in step S203). For “No”), the entire amount generated by the solar panel 100 is sold (step S204). On the other hand, when it is determined that there is surplus power (“Yes” in step S202), the capacity of the storage battery 300 is confirmed (step S205).

  As a result of checking the capacity of the storage battery 300, if there is no free capacity in the storage battery 300 ("no empty" in step S205), a part of the power is supplied from the storage battery 300 to the load device 500 (step S206), and the process returns to step S205. The capacity of the storage battery 300 is confirmed. On the other hand, as a result of checking the capacity of the storage battery 300, when the capacity of the storage battery 300 is empty (“available” in step S205), the mode is switched to the home consumption mode (step S207).

  Next, the generated power and the load power consumption are compared (step S208). When the generated power (PV) is larger than the load power consumption (“PV> load” in step S208), the storage battery 300 is charged. However, power is supplied to the load device 500 (step S209). On the other hand, the generated power and the load power consumption are compared (step S208). When the generated power (PV) is smaller than the load power consumption (“PV <load” in step S208), power is supplied to the load device 500. (Step S210).

  As described above, according to the present embodiment, the power consumption at home is the most economical by analyzing the acquired power peak information, electricity rate information, weather information and the power consumption status at the detected load. In order to switch to the mode that consumes the power generated by the solar panel in the house or the mode that consumes the battery while charging the storage battery, the power generated by the solar power generation can be used without waste. And it can be used economically.

<Third Embodiment>
A third embodiment of the present invention will be described with reference to FIGS.
In the present embodiment, when a power failure state is detected from the acquired distribution line voltage value, the generated power amount in the solar panel is smaller than the consumed power amount in the load, and the remaining capacity of the storage battery is equal to or less than a predetermined range. In addition, the mode is switched to a mode in which the electric power generated by the solar panel is consumed at home or a mode in which consumption is stopped at home.

<Configuration of power control device>
The configuration of the power control apparatus according to this embodiment will be described with reference to FIG. As shown in FIG. 2, the power control apparatus according to the present embodiment includes an MPPT DC / DC converter 210, a switching unit 220, a DC / AC inverter 230, a distribution line voltage value acquisition unit 241, and a DC distribution unit. 260, an AC power distribution unit 270, an AC / DC converter 280, and a control unit 292. In addition, about the component which attaches | subjects the same code | symbol as 1st Embodiment, since it has the same function, the detailed description is abbreviate | omitted.

  The control unit 292 detects a power failure state from the acquired distribution line voltage value, and when the generated power amount in the solar panel is smaller than the consumed power amount in the load and the remaining capacity of the storage battery is equal to or less than a predetermined range, The mode is switched to a mode in which the electric power generated by the solar panel is consumed at home or a mode in which consumption is stopped at home.

<Processing of photovoltaic power control system>
Processing of the photovoltaic power generation control system according to the present embodiment will be described using FIG.

  First, the control part 290 detects generation | occurrence | production of a power failure from a distribution line voltage value (step S301), and switches to household consumption (step S302). Next, the control unit 290 compares the generated power with the load power consumption (step S303), and when the load power consumption is larger than the generated power (PV) (“PV <load” in step S303), the storage battery The capacity is confirmed (step S304).

  When the storage battery capacity is larger than X% (“X% <capacity” in step S304), control unit 290 consumes in all load devices 500 (step S305), and the storage battery capacity is greater than Y%. If it is smaller (“Y%> capacity” in step S304), preparation is made to stop consumption in all the load devices 500 (step S306). Further, when the storage battery capacity is larger than Y% and smaller than X% (“Y% <capacity <X%” in step S304), consumption is performed only by the important load device 500 (step S307).

  When the load power consumption is smaller than the generated power (PV) (“PV> load” in step S303), the control unit 290 checks the storage battery capacity (step S308). When the storage battery capacity is vacant (“available” in step S308), the control unit 290 consumes the load device 500 while charging the storage battery 300 (step S309). If there is no vacancy (“No vacancy” in step S308), consumption by the load device 500 is performed (step S310).

  As described above, according to the present embodiment, when the amount of generated power in the solar panel is smaller than the amount of power consumed in the load and the remaining capacity of the storage battery is equal to or less than a predetermined range, Switch to the mode where the generated power is consumed at home or the mode where consumption is stopped in the home, detect the power outage from the acquired distribution line voltage value, and the amount of power generated by the solar panel is greater than the amount of power consumed by the load When the remaining capacity of the storage battery is greater than or equal to a predetermined range, the mode is switched to a mode in which the electric power generated by the solar panel is consumed in the house or a mode in which the battery is consumed while charging the storage battery. Therefore, the electric power generated by solar power generation can be used effectively without waste.

  The processing of the power control device in the photovoltaic power control system is recorded on a recording medium readable by the computer system, and the program recorded on this recording medium is read by the power control device in the photovoltaic power control system, By executing, the photovoltaic power generation control system of the present invention can be realized. The computer system here includes an OS and hardware such as peripheral devices.

  Further, the “computer system” includes a homepage providing environment (or display environment) if a WWW (World Wide Web) system is used. The program may be transmitted from a computer system storing the program in a storage device or the like to another computer system via a transmission medium or by a transmission wave in the transmission medium. Here, the “transmission medium” for transmitting the program refers to a medium having a function of transmitting information, such as a network (communication network) such as the Internet or a communication line (communication line) such as a telephone line.

  The program may be for realizing a part of the functions described above. Furthermore, what can implement | achieve the function mentioned above in combination with the program already recorded on the computer system, what is called a difference file (difference program) may be sufficient.

  The embodiments of the present invention have been described in detail with reference to the drawings. However, the specific configuration is not limited to the embodiments, and includes designs and the like that do not depart from the gist of the present invention.

100; Solar panel 200; Power control device 210; MPPT DC / DC converter 220; Switching unit 230; DC / AC inverter 241; Distribution line voltage value acquisition unit 242; Weather information acquisition unit 243; Electricity rate information acquisition unit 244; Power peak information acquisition unit 260; DC power distribution unit 270; AC power distribution unit 280; AC / DC converter 290; control unit 291; control unit 292; control unit 300; storage battery 400; database 500;

Claims (11)

Photovoltaic power control comprising a solar panel, a power control device that controls power generated by the solar panel, a database that stores information related to power consumption, and a storage battery that stores the power generated by the solar panel A system,
The power control device is
Distribution line voltage value acquisition means for acquiring distribution line voltage values;
Weather information acquisition means for acquiring weather information from the database;
Control means for switching and controlling the supply destination of the power generated by the solar panel based on the acquired information;
With
When the control means predicts that the acquired distribution line voltage value is equal to or higher than a predetermined voltage value and that clear weather continues for a predetermined time or more from the acquired weather information, the solar panel A photovoltaic power generation control system characterized by switching to a mode in which the generated power is consumed in the house or a mode in which the battery is consumed while charging the storage battery. Photovoltaic power control comprising a solar panel, a power control device that controls power generated by the solar panel, a database that stores information related to power consumption, and a storage battery that stores the power generated by the solar panel A system,
The power control device is
Distribution line voltage value acquisition means for acquiring distribution line voltage values;
Weather information acquisition means for acquiring weather information from the database;
Control means for switching and controlling the supply destination of the power generated by the solar panel based on the acquired information;
With
When the acquired distribution line voltage value is equal to or higher than a predetermined voltage value and the weather is clear from the acquired weather information, the control means generates the electric power generated by the solar panel in real time in the house. A photovoltaic power generation control system characterized by switching to a consuming mode or a consuming mode while charging the storage battery. Photovoltaic power control comprising a solar panel, a power control device that controls power generated by the solar panel, a database that stores information related to power consumption, and a storage battery that stores the power generated by the solar panel A system,
The power control device is
Distribution line voltage value acquisition means for acquiring distribution line voltage values;
Power peak information acquisition means for acquiring power peak information from the database;
From the database, electricity rate information acquisition means for acquiring electricity rate information;
Weather information acquisition means for acquiring weather information from the database;
Detection means for detecting the power consumption status at the load;
Control means for switching and controlling the supply destination of the power generated by the solar panel based on the acquired information;
With
The control means analyzes the acquired distribution line voltage value, power peak information, electricity rate information, weather information and the power consumption status at the detected load, and the power consumption in the home is most economical. If it is determined, the photovoltaic power control system is switched to a mode in which the electric power generated by the solar panel is consumed at home or a mode in which the power is consumed while charging the storage battery. Photovoltaic power control comprising a solar panel, a power control device that controls power generated by the solar panel, a database that stores information related to power consumption, and a storage battery that stores the power generated by the solar panel A system,
The power control device is
Distribution line voltage value acquisition means for acquiring distribution line voltage values;
Detection means for detecting the power consumption status at the load;
Measuring means for measuring the amount of power generated in the solar panel;
A residual capacity detecting means for detecting a residual capacity of the storage battery;
Control means for switching and controlling the supply destination of the power generated by the solar panel based on the acquired information;
With
The control means detects a power failure state from the acquired distribution line voltage value, the amount of power generated by the solar panel is smaller than the amount of power consumed by the load, and the remaining capacity of the storage battery is below a predetermined range. A solar power generation control system characterized by switching to a mode in which power generated by the solar panel is consumed at home or a mode in which consumption is stopped at home. Photovoltaic power control comprising a solar panel, a power control device that controls power generated by the solar panel, a database that stores information related to power consumption, and a storage battery that stores the power generated by the solar panel A system,
The power control device is
Distribution line voltage value acquisition means for acquiring distribution line voltage values;
Detection means for detecting the power consumption status at the load;
Measuring means for measuring the amount of power generated in the solar panel;
A residual capacity detecting means for detecting a residual capacity of the storage battery;
Control means for switching and controlling the supply destination of the power generated by the solar panel based on the acquired information;
With
The control means detects a power failure state from the acquired distribution line voltage value, the amount of power generated by the solar panel is larger than the amount of power consumed by the load, and the residual capacity of the storage battery is greater than or equal to a predetermined range. At one time, the photovoltaic power control system is switched to a mode in which the electric power generated by the solar panel is consumed at home or a mode in which the power is consumed while charging the storage battery. Photovoltaic power control comprising a solar panel, a power control device that controls power generated by the solar panel, a database that stores information related to power consumption, and a storage battery that stores the power generated by the solar panel A photovoltaic power control method for a system,
A first step in which the power control device acquires weather information from a distribution line voltage value and the database;
When the power control device is predicted that the acquired distribution line voltage value is equal to or higher than a predetermined voltage value and clear weather continues for a predetermined time or more from the acquired weather information, the solar panel A second step of switching to a mode for consuming the electric power generated at home or a mode for consuming at home while charging the storage battery;
A photovoltaic power generation control method comprising: Photovoltaic power control comprising a solar panel, a power control device that controls power generated by the solar panel, a database that stores information related to power consumption, and a storage battery that stores the power generated by the solar panel A photovoltaic power control method for a system,
The power control device acquires, from the database, power peak information, electricity rate information, and weather information, acquires a distribution line voltage value, and detects a power consumption state at a load;
When the power control device analyzes the acquired power peak information, electricity rate information, weather information and the power consumption status at the detected load, and determines that the power consumption in the home is the most economical In addition, a second step of switching to a mode for consuming the power generated by the solar panel at home or a mode for consuming at home while charging the storage battery,
A photovoltaic power generation control method comprising: Photovoltaic power control comprising a solar panel, a power control device that controls power generated by the solar panel, a database that stores information related to power consumption, and a storage battery that stores the power generated by the solar panel A photovoltaic power control method for a system,
A first step in which the power control device acquires a distribution line voltage value, a power consumption state at a load, and a generated power amount at the solar panel;
A second step in which the power control device detects a remaining capacity of the storage battery;
The power control device detects a power failure state from the acquired distribution line voltage value, the amount of power generated by the solar panel is smaller than the amount of power consumed by the load, and the remaining capacity of the storage battery is below a predetermined range A third step of switching to a mode in which the electric power generated by the solar panel is consumed in the house or a mode in which consumption is stopped in the house;
The power control device detects a power outage state from the acquired distribution line voltage value, the amount of power generated by the solar panel is larger than the amount of power consumed by the load, and the remaining capacity of the storage battery is greater than or equal to a predetermined range A fourth step of switching to a mode of consuming the power generated by the solar panel at home or a mode of consuming at home while charging the storage battery;
A photovoltaic power generation control method comprising: Photovoltaic power control comprising a solar panel, a power control device that controls power generated by the solar panel, a database that stores information related to power consumption, and a storage battery that stores the power generated by the solar panel A program for causing a computer to execute a photovoltaic power generation control method in a system,
A first step in which the power control device acquires weather information from a distribution line voltage value and the database;
When the power control device is predicted that the acquired distribution line voltage value is equal to or higher than a predetermined voltage value and clear weather continues for a predetermined time or more from the acquired weather information, the solar panel A second step of switching to a mode for consuming the electric power generated at home or a mode for consuming at home while charging the storage battery;
A program that causes a computer to execute. Photovoltaic power control comprising a solar panel, a power control device that controls power generated by the solar panel, a database that stores information related to power consumption, and a storage battery that stores the power generated by the solar panel A program for causing a computer to execute a photovoltaic power generation control method in a system,
The power control device acquires, from the database, power peak information, electricity rate information, and weather information, acquires a distribution line voltage value, and detects a power consumption state at a load;
When the power control device analyzes the acquired power peak information, electricity rate information, weather information and the power consumption status at the detected load, and determines that the power consumption in the home is the most economical In addition, a second step of switching to a mode for consuming the power generated by the solar panel at home or a mode for consuming at home while charging the storage battery,
A program that causes a computer to execute. Photovoltaic power control comprising a solar panel, a power control device that controls power generated by the solar panel, a database that stores information related to power consumption, and a storage battery that stores the power generated by the solar panel A photovoltaic power control method for a system,
A first step in which the power control device acquires a distribution line voltage value, a power consumption state at a load, and a generated power amount at the solar panel;
A second step in which the power control device detects a remaining capacity of the storage battery;
The power control device detects a power failure state from the acquired distribution line voltage value, the amount of power generated by the solar panel is smaller than the amount of power consumed by the load, and the remaining capacity of the storage battery is below a predetermined range A third step of switching to a mode in which the electric power generated by the solar panel is consumed in the house or a mode in which consumption is stopped in the house;
The power control device detects a power outage state from the acquired distribution line voltage value, the amount of power generated by the solar panel is larger than the amount of power consumed by the load, and the remaining capacity of the storage battery is greater than or equal to a predetermined range A fourth step of switching to a mode of consuming the power generated by the solar panel at home or a mode of consuming at home while charging the storage battery;
A program that causes a computer to execute.