WO2016208007A1 - Status display system, status display method, and status display device - Google Patents

Status display system, status display method, and status display device Download PDF

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Publication number
WO2016208007A1
WO2016208007A1 PCT/JP2015/068243 JP2015068243W WO2016208007A1 WO 2016208007 A1 WO2016208007 A1 WO 2016208007A1 JP 2015068243 W JP2015068243 W JP 2015068243W WO 2016208007 A1 WO2016208007 A1 WO 2016208007A1
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WO
WIPO (PCT)
Prior art keywords
solar cell
power
unit
power conversion
cell module
Prior art date
Application number
PCT/JP2015/068243
Other languages
French (fr)
Japanese (ja)
Inventor
徳永　智明
真吾 柳本
山本　伸一
Original Assignee
株式会社東芝
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Publication date
Application filed by 株式会社東芝 filed Critical 株式会社東芝
Priority to PCT/JP2015/068243 priority Critical patent/WO2016208007A1/en
Publication of WO2016208007A1 publication Critical patent/WO2016208007A1/en

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02B90/20—Smart grids as enabling technology in buildings sector
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission

Definitions

  • Embodiments described herein relate generally to a status display system, a status display method, and a status display device.
  • a power generation system that includes a plurality of solar cell modules and a plurality of power converters and supplies power from the power converter to a load.
  • This type of power generation system converts DC power into AC power for each power converter and supplies AC power to a load.
  • this type of power generation system has an abnormality when an abnormality occurs in some of the solar cell modules or some of the power conversion devices among the plurality of power conversion devices. In some cases, the solar cell module and the power conversion device that are not operated continuously operate. As a result, the conventional power generation system may not allow the user to recognize some abnormality in the system, and the maintainability of the system may not be sufficient.
  • the problem to be solved by the present invention is to provide a status display system, a status display method, and a status display device that can improve the maintainability of the system.
  • the status display system of the embodiment has a plurality of power conversion devices and communication devices.
  • the power conversion device includes a power conversion unit and a transmission unit.
  • the power conversion unit is provided corresponding to the plurality of solar cell modules, and converts DC power supplied from the solar cell modules into AC power.
  • the transmission unit transmits the power generation state of the solar cell module and the operation state of the power conversion unit to the communication device.
  • the communication device includes a receiving unit, an operation unit, and a display unit.
  • the reception unit receives the power generation state of the solar cell module and the operation state of the power conversion unit respectively transmitted by the transmission units of the plurality of power conversion devices.
  • the operation unit accepts an operation.
  • the display unit displays information based on the power generation state of the solar cell module and the operation state of the power conversion unit received by the reception unit received by the reception unit by switching the contents according to the operation received by the operation unit. To do.
  • Drawing 1 is a block diagram showing the composition of photovoltaic power generation system 1 of an embodiment.
  • the photovoltaic power generation system 1 of the embodiment includes a plurality of solar cell modules 10-1,..., 10-N, a plurality of power conversion devices 20-1,. .
  • a commercial power system 40 is connected to the solar cell module 10 and the power conversion device 20 in the solar power generation system 1.
  • the solar cell module is not described separately from other solar cell modules, the reference signs after the hyphen are omitted and described as “solar cell module 10”.
  • symbol after a hyphen is abbreviate
  • the solar power generation system 1 connects a plurality of solar cell modules 10 and the commercial power system 40 via the power conversion device 20.
  • the power converter 20 converts the DC power generated by the solar cell module 10 into AC power and supplies it to the power line 1a.
  • the commercial power system 40 supplies AC system power to the power line 1a.
  • the solar power generation system 1 links the plurality of solar cell modules 10 and the commercial power system 40 to supply AC power to a load (not shown).
  • the solar cell module 10 is one of the plurality of solar cell modules 10 installed on the roof 100a of the house.
  • the solar cell module 10 converts the light energy of the received light into electric energy, and supplies the converted electric energy to the power conversion device 20 as DC power.
  • one power conversion device 20 is attached to each solar cell module 10.
  • the power converter 20 is installed on the roof 100a of the house together with the solar cell module 10.
  • the power converter 20 is supplied with DC power generated by each solar cell module 10.
  • the one power converter device 20 is provided with respect to each solar cell module 10, it is not restricted to this, Even if the one power converter device 20 is provided with respect to the several solar cell module 10.
  • the gateway device 30 is provided in the vicinity of a distribution board such as a space 100b in a house or outdoors.
  • the gateway device 30 can communicate with the power conversion device 20 and controls the operation of the power conversion device 20.
  • the gateway device 30 supplies the control signals C-1,..., And CN including the target power command value to the power conversion device 20.
  • the gateway device 30 receives state notification signals R-1,..., And RN including the power generation state of the solar cell module 10 and the operation state of the power conversion device 20 transmitted by the power conversion device 20.
  • control signal when the control signal is not described separately from other control signals, the symbols after the hyphen are omitted and described as “control signal C”.
  • the reference signs after the hyphen are omitted and described as “state notification signal R”.
  • FIG. 2 is a configuration diagram of the power conversion device 20 in the solar power generation system 1 of the embodiment.
  • the power conversion device 20 includes a power conversion unit 202, a drive control unit 204, an output current sensor 206, and a wireless communication unit 208.
  • the power conversion unit 202 is an inverter bridge including a plurality of switching elements.
  • the power conversion unit 202 is attached between the solar cell module 10 and the load 50.
  • a plurality of switching elements are on / off controlled in accordance with the switching control signal output by the drive control unit 204.
  • the power converter 202 converts the DC power input from the solar cell module 10 into AC power.
  • the AC power converted by the power conversion unit 202 is supplied to the load 50.
  • the load 50 is a device that consumes AC power supplied from the power conversion device 20 or the commercial power system 40.
  • the load 50 is, for example, a home appliance in a house.
  • the drive control unit 204 controls the AC power output by the power conversion unit 202 by controlling the on / off operation of the switching element of the power conversion unit 202.
  • a target power command value is supplied from the wireless communication unit 208 to the drive control unit 204.
  • the drive control unit 204 is supplied with a generated voltage signal Vg indicating the generated power of the solar cell module 10.
  • an output current signal If indicating the output current of the power converter 202 is supplied from the output current sensor 206 to the drive controller 204.
  • the output current sensor 206 is provided on the power line on the output side of the power conversion unit 202, detects the output current of the power conversion unit 202, and outputs the output current signal If to the drive control unit 204. Based on the generated voltage signal Vg and the output current signal If, the drive control unit 204 controls the AC power output by the power conversion unit 202 so that the output power of the power conversion unit 202 approaches the target power.
  • the drive control unit 204 includes a power calculation unit 204 a that calculates a value representing the power generation state of the solar cell module 10 and a value representing the operation state of the power conversion device 20.
  • the power calculation unit 204 a calculates the generated power (instantaneous value) of the solar cell module 10 based on the generated voltage signal Vg input from the solar cell module 10 and the impedance of the load 50.
  • the power calculation unit 204 a calculates the output power (instantaneous value) of the power converter 20 based on the predetermined output voltage and the output current signal If input from the output current sensor 206.
  • the drive control part 204 calculates the output electric energy which integrated
  • the wireless communication unit 208 is a wireless communication module that includes the antenna unit 208a and performs wireless communication with the gateway device 30.
  • the wireless communication unit 208 performs communication processing according to a predetermined protocol, and transmits / receives a wireless signal to / from the gateway device 30 using a predetermined carrier frequency.
  • the wireless communication unit 208 uses, for example, a low-frequency wireless carrier frequency in the 920 MHz band.
  • the communication method of the wireless communication unit 208 is not limited to the 920 MHz band wireless communication method, and may be another communication method. Examples of other communication methods include a power line communication (PLC) method and a 2.5 GHz band wireless communication method.
  • PLC power line communication
  • the wireless communication unit 208 outputs the target power command value included in the control signal C to the drive control unit 204 in response to receiving the control signal C transmitted from the gateway device 30.
  • the wireless communication unit 208 transmits a state notification signal R including the value representing the power generation state of the solar cell module 10 calculated by the power calculation unit 204 a and the value representing the operation state of the power conversion device 20 to the gateway device 30.
  • the value representing the power generation state of the solar cell module 10 and the value representing the operation state of the power conversion device 20 make the solar cell module 10 and the power conversion device 20 malfunction recognized by, for example, a maintenance contractor who performs maintenance of the solar power generation system 1. Information.
  • the abnormality of the solar cell module 10 and the power conversion device 20 is a state that affects the power generation and output of power of the solar cell module 10 and the power conversion device 20 such as excessive dirt of the solar cell module 10.
  • the wireless communication unit 208 functions as a transmission unit that transmits the power generation state of the solar cell module 10 and the operation state of the power conversion unit to the gateway device 30 (communication device).
  • FIG. 3 is a block diagram illustrating a configuration of the gateway device 30 in the solar power generation system 1 of the embodiment.
  • the gateway device 30 is a communication device that can communicate with the plurality of power conversion devices 20.
  • the gateway device 30 includes a home communication unit 302, a wireless communication unit 304, a central control unit 306, an operation unit 308, a display control unit 310, and a display unit 312.
  • the home communication unit 302 is connected to an external network such as the Internet via a home network such as a LAN (Local Area Network).
  • the in-home communication unit 302 receives, for example, information for controlling the output power of the power conversion device 20 according to the control of the central control unit 306.
  • the wireless communication unit 304 is a wireless communication module that includes the antenna unit 304a and performs wireless communication with the plurality of power conversion devices 20.
  • the wireless communication unit 304 performs communication processing according to the same protocol as the wireless communication unit 208 of the power conversion device 20, and transmits and receives wireless signals to and from the wireless communication unit 208 using a predetermined carrier frequency.
  • the wireless communication unit 304 uses, for example, a carrier frequency in the 920 MHz band of low power wireless. Note that the communication method of the wireless communication unit 304 may be any method that allows communication with the wireless communication unit 208.
  • the wireless communication unit 304 transmits the control signal C to the plurality of power conversion devices 20 and receives the state notification signal R transmitted by the plurality of power conversion devices 20.
  • the central control unit 306 may be a software function unit that functions when a processor such as a CPU (Central Processing Unit) as an arithmetic circuit and a control circuit executes a program stored in a memory, or an LSI (Large It may be a hardware function unit such as Scale Integration) or ASIC (Application Specific Integrated Circuit).
  • a processor such as a CPU (Central Processing Unit) as an arithmetic circuit and a control circuit executes a program stored in a memory
  • LSI Large It may be a hardware function unit such as Scale Integration) or ASIC (Application Specific Integrated Circuit).
  • the central control unit 306 acquires the target power of each power conversion device 20 and generates a target power command value indicating the target power.
  • the central control unit 306 controls the wireless communication unit 304 to cause the power conversion device 20 to transmit the control signal C including the target power command value.
  • the central control unit 306 stores the identification information of each power conversion device 20 in the control signal C, and causes each power conversion device 20 to receive the control signal C. Accordingly, the central control unit 306 controls the operation of each power conversion device 20. Further, the central control unit 306 acquires the state notification signal R received from the power conversion device 20 via the wireless communication unit 304.
  • the central control unit 306 refers to the identification information of the power conversion device 20 stored in the state notification signal R and monitors the operation of the power conversion device 20.
  • the central control unit 306 outputs a value representing the power generation state of the solar cell module 10 and a value representing the operation state of the power conversion device 20 included in the state notification signal R to the display control unit 310.
  • the operation unit 308 is an operation interface operated by an administrator of the gateway device 30, for example.
  • the operation unit 308 outputs an operation signal to the display control unit 310 in response to accepting the operation.
  • the administrator of the gateway device 30 is, for example, a maintenance company of the solar power generation system 1.
  • the maintenance company of the solar power generation system 1 confirms the power generation state of the solar cell module 10 and the operation state of the power conversion device 20, and performs maintenance of the solar power generation system 1.
  • the display control unit 310 is a display controller that drives the display unit 312 to control display on the display unit 312.
  • the display control unit 310 switches display contents of information on the display unit 312 based on the operation signal output by the operation unit 308.
  • the display unit 312 is a display device that presents various types of information.
  • the display content of the display unit 312 is controlled by the central control unit 306.
  • the display unit 312 switches and displays the power generation state of the solar cell module 10 and the operation state of the power conversion device 20 according to the control of the display control unit 310.
  • FIG. 4 is a front view showing an example of the configuration of the display / operation unit 320 in the solar power generation system 1 of the embodiment.
  • the display / operation unit 320 includes an operation unit 308 and a display unit 312 that are integrally formed.
  • a display / operation unit 320 having functions of a display unit 312 and an operation unit 308 is attached to the gateway device 30 so as to be exposed from the housing.
  • the display / operation unit 320 should just be attached to the position which can be operated and visually recognized by the administrator of the photovoltaic power generation system 1 among the gateway apparatus 30 housing
  • the display / operation unit 320 is attached with a numerical value display section 320a, a kW unit LED (light emitting diode) 320b, a kWh unit LED 320c, and an interconnection LED 320d.
  • the numerical display unit 320a is, for example, five numerical display LEDs arranged in a line in the horizontal direction.
  • the number display LED displays an integer value of 0 to 9 in each digit by a display segment in which seven straight lines are arranged in a letter “8”.
  • the kW unit LED 320b and the kWh unit LED 320c are attached to the right side of the numerical value display portion 320a.
  • the kW unit LED 320b indicates that the unit of the numerical value displayed by the numerical value display unit 320a is instantaneous power [kW].
  • the kWh unit LED 320c indicates that the unit of the numerical value displayed by the numerical value display unit 320a is the integrated power [kWh].
  • the connection LED 320d indicates a connection state of the solar power generation system 1.
  • the numerical value display unit 320a, the kW unit LED 320b, the kWh unit LED 320c, and the interconnection LED 320d correspond to the display unit 312.
  • the display / operation unit 320 is provided with a button unit 308 ⁇ / b> A that accepts a pressing operation as the operation unit 308.
  • the display control unit 310 displays a numerical value on the numerical display unit 320a based on the power generation state of the solar cell module 10 and the operation state of the power conversion device 20.
  • the display control unit 310 corresponds to the unit of the power generation state of the solar cell module 10 and the operation state of the power conversion device 20 displayed on the numerical display unit 320a, and either one of the kW unit LED 320b or the kWh unit LED 320c. Lights up. Further, the display control unit 310 switches between a numerical value to be displayed on the numerical value display unit 320a and a lighting state of the kW unit LED 320b and the kWh unit LED 320c based on the operation of the button unit 308A.
  • the display control unit 310 controls the lighting state of the connection LED 320d for each of the solar cell module 10 and the power conversion device 20 based on the connection state with respect to the commercial power system 40.
  • the solar cell module 10 and the commercial power system 40 are interconnected to supply power to the load 50, and the commercial power system 40 stops feeding and the solar cell module 10 Includes a single operation state in which is independently operated.
  • a signal indicating an interconnection state is output from the central control unit 306.
  • the display control unit 310 turns on the connection LED 320d when the power conversion device 20 is in the connection operation state, and turns off the connection LED 320d when the power conversion device 20 is in the single operation state.
  • FIG. 5 is a diagram illustrating a change in display state in the gateway device 30 according to the embodiment.
  • the lighting state of the LED is indicated by a black circle
  • the OFF state of the LED is indicated by a white circle.
  • the display control unit 310 does not light the numerical value display unit 320a, the kW unit LED 320b, and the kWh unit LED 320c in the initial state (320a-1) of the display unit 312. Since the connection state of the solar cell module 10 is the connection operation state, the display control unit 310 lights the connection LED 320d. For example, when the display unit 312 is stopped, the display control unit 310 makes a transition to the initial state (320a-1) in response to the operation of the button unit 308A.
  • the display control unit 310 changes the display unit 312 to the instantaneous value display state (320a-2) in response to the button unit 308A being operated once in the initial state (320a-1).
  • the display control unit 310 controls the numerical value display unit 320a so as to display the numerical value of the power sale amount (instantaneous value), and turns on the kW unit LED 320b.
  • the amount of power sold is a value obtained by subtracting the power consumption of the load 50 from the total value of the output power output by the power conversion devices 20-1 and 20-2.
  • the power consumption value of the load 50 is assumed to be zero.
  • the display control unit 310 displays that the amount of power sold is 0.6 kW.
  • the display control unit 310 changes the display unit 312 to the integrated value display state (320a-3) in response to the button unit 308A being operated once in the instantaneous value display state (320a-2).
  • the display control unit 310 controls the numerical value display unit 320a so as to display the numerical value of the power sale amount (integrated value), and turns on the kWh unit LED 320c.
  • the power sale amount is a value obtained by subtracting the power consumption amount of the load 50 from the total value of the output power amounts output by the power conversion devices 20-1 and 20-2. For example, the display control unit 310 displays that the amount of power sold is 36.0 kWh.
  • the gateway device 30 of the embodiment may display the total value of the generated power generated by the solar cell module 10-1 and the solar cell module 10-2 as the amount of power sold (instantaneous value). In addition, the gateway device 30 of the embodiment may display the total value of the generated power generated by the solar cell module 10-1 and the solar cell module 10-2 as the amount of power sold (integrated value). The gateway device 30 of this embodiment switches and displays the power sale amount (instantaneous value) and the power sale amount (integrated value) of the solar cell module 10.
  • the display control unit 310 changes the display unit 312 to the first power generation display state (320a-4) in response to the button unit 308A being operated once in the integrated value display state (320a-3).
  • the display control unit 310 controls the numerical value display unit 320a to display the numerical value of the generated power (instantaneous value) of the solar cell module 10-1 in the first power generation display state (320a-4), and at the same time, the unit is kW.
  • LED 320b is turned on.
  • the display control unit 310 displays that the generated power of the solar cell module 10-1 is 0.3 kW.
  • the display control unit 310 may display the symbol “P1” for identifying the solar cell module 10-1 on the numerical value display unit 320a together with the generated power of the solar cell module 10-1.
  • the display control unit 310 displays a symbol for identifying the solar cell module 10 based on the result determined by the identification information by the central control unit 306.
  • the display control unit 310 transitions the display unit 312 to the first output display state (320a-5) in response to the button unit 308A being operated once in the first power generation display state (320a-4). .
  • the display control unit 310 controls the numerical display unit 320a to display the numerical value of the output power (instantaneous value) of the power conversion device 20-1 in the first output display state (320a-5), and also displays the unit of kW.
  • LED 320b is turned on.
  • the display control unit 310 displays that the output power of the power conversion device 20-1 is 0.3 kW.
  • the display control unit 310 may display the symbol “I1” for identifying the power conversion device 20-1 on the numerical display unit 320a together with the output power of the power conversion device 20-1.
  • the display control unit 310 displays a symbol for identifying the power conversion device 20 based on the result determined by the identification information by the central control unit 306.
  • the display control unit 310 transitions the display unit 312 to the second power generation display state (320a-6) in response to the button unit 308A being operated once in the first output display state (320a-5). .
  • the display control unit 310 controls the numerical value display unit 320a so as to display the numerical value of the generated power (instantaneous value) of the solar cell module 10-2 in the second power generation display state (320a-6), and also displays kW units.
  • LED 320b is turned on.
  • the display control unit 310 displays that the generated power of the solar cell module 10-2 is 0.3 kW.
  • the display control unit 310 may display the symbol “P2” for identifying the solar cell module 10-2 on the numerical value display unit 320a together with the generated power of the solar cell module 10-2.
  • the display control unit 310 transitions the display unit 312 to the second output display state (320a-7) in response to the button unit 308A being operated once in the second power generation display state (320a-6). .
  • the display control unit 310 controls the numerical value display unit 320a to display the numerical value of the output power (instantaneous value) of the power converter 20-2 in the second output display state (320a-7), and at the same time, the unit is kW.
  • LED 320b is turned on.
  • the display control unit 310 displays that the output power of the power conversion device 20-2 is 0.3 kW.
  • the display control unit 310 may display the symbol “I2” for identifying the power conversion device 20-2 on the numerical display unit 320a together with the output power of the power conversion device 20-2.
  • the display control unit 310 changes the display unit 312 to the initial state (320a-18) in response to the button unit 308A being operated once in the second output display state (320a-7).
  • the gateway device 30 displays information based on the power generation state of the solar cell module 10 and the operation state of the power conversion device 20 by switching the contents according to the reception of the operation of the button unit 308A. More specifically, the gateway device 30 responds to the operation received by the button unit 308A, and the operation state of the first solar cell module 10-1 and the power corresponding to the first solar cell module 10-1. The operation state of the conversion device 20-1, the operation state of the second solar cell module 10-2, and the operation state of the power conversion device 20-2 corresponding to the second solar cell module 10-2 are switched in this order. indicate.
  • the gateway apparatus 30 can make the administrator of the gateway apparatus 30 recognize that there is no abnormality in the solar cell module 10 and the power conversion apparatus 20.
  • FIG. 6 is a diagram illustrating a change in display state in the gateway device 30 according to the embodiment.
  • the display control unit 310 controls the display unit 312 in the initial state (320a-11) of the display unit 312 as in the above-described initial state (320a-1).
  • the display control unit 310 changes the display unit 312 to the instantaneous value display state (320a-12) in response to the button unit 308A being operated once in the initial state (320a-11).
  • the display control unit 310 displays that the amount of power sold is 0.4 kW.
  • the display control unit 310 changes the display unit 312 to the integrated value display state (320a-13) in response to the button unit 308A being operated once in the instantaneous value display state (320a-12).
  • the display control unit 310 displays that the amount of power sold is 24.0 kWh.
  • the display control unit 310 transitions the display unit 312 to the first power generation display state (320a-14) in response to the button unit 308A being operated once in the instantaneous value display state (320a-13).
  • the display control unit 310 displays a symbol “P1” for identifying the solar cell module 10-1 and that the generated power of the solar cell module 10-1 is 0.3 kW.
  • the display control unit 310 transitions the display unit 312 to the first output display state (320a-15) in response to the button unit 308A being operated once in the first power generation display state (320a-14). .
  • Display control unit 310 displays symbol “I1” for identifying power conversion device 20-1 and that the output power of power conversion device 20-1 is 0.3 kW.
  • the display control unit 310 transitions the display unit 312 to the second power generation display state (320a-16) in response to the button unit 308A being operated once in the first output display state (320a-15). .
  • the display control unit 310 displays a symbol “P2” for identifying the solar cell module 10-2 and that the generated power of the solar cell module 10-2 is 0.1 kW.
  • the display control unit 310 transitions the display unit 312 to the second output display state (320a-17) in response to the button unit 308A being operated once in the second power generation display state (320a-16). .
  • the display control unit 310 displays the symbol “I2” for identifying the power conversion device 20-2 and that the output power of the power conversion device 20-2 is 0.1 kW.
  • the display control unit 310 changes the display unit 312 to the initial state (320a-18) in response to the button unit 308A being operated once in the second output display state (320a-17).
  • the gateway device 30 displays information based on the power generation state of the solar cell module 10 and the operation state of the power conversion device 20 by switching the contents according to the reception of the operation of the button unit 308A.
  • the generated power of the solar cell module 10-2 is lower than the generated power of the solar cell module 10-2, and the output power of the power conversion device 20-2 is that of the power conversion device 20-1. Display that the output power is lower.
  • the gateway apparatus 30 can make the administrator of the gateway apparatus 30 recognize that there is an abnormality in the solar cell module 10-2.
  • the gateway device 30 can recognize the abnormality of the solar cell module 10 because the generated power of the solar cell module 10-2 is smaller than the generated power of the solar cell module 10-1.
  • the gateway device 30 since the information based on the power generation state of the solar cell module 10 and the operation state of the power conversion device 20 is switched and displayed, even if the display size of the display unit 312 is small, the solar cell module 10 and Information of the power converter 20 can be displayed sufficiently.
  • the gateway device 30 determines a set of the power generation state of the solar cell module 10 and the operation state of the power conversion device 20 connected to the solar cell module 10 in response to receiving the operation by the button unit 308A. Switch and display each group in turn. That is, the gateway device 30 includes a set of the power generation state of the solar cell module 10-1 and the operation state of the power conversion device 20-1, the power generation state of the solar cell module 10-2, and the operation state of the power conversion device 20-2. Are displayed in this order. Thereby, according to the gateway apparatus 30, the group of the solar cell module 10 and the power converter device 20 can be compared, and abnormality can be recognized by the group unit of the solar cell module 10 and the power converter device 20. .
  • the gateway device 30 switches and displays the power generation state of the solar cell module 10 and the output state of the power conversion device 20 corresponding to the solar cell module 10 in this order in response to receiving the operation by the button unit 308A. Therefore, the administrator of the photovoltaic power generation system 1 can compare the power generation state of the solar cell module 10 and the output state of the power conversion device 20 corresponding to the solar cell module 10. As a result, the gateway device 30 can recognize which of the solar cell module 10 and the power conversion device 20 is abnormal.
  • the gateway device 30 switches between the instantaneous value of the output power of the plurality of power conversion devices 20 connected to the plurality of solar cell modules 10 and the integrated value of the output power of the plurality of power conversion devices 20 at a predetermined time. Since it displays, the administrator of the solar power generation system 1 can recognize whether there is an abnormality in the entire solar power generation system 1.
  • the gateway device 30 In addition to the button unit 308A that switches the contents of the power generation state of the solar cell module 10 and the operation state of the power conversion device 20 in one direction as the operation unit 308, the gateway device 30 also generates the power generation state and power conversion of the solar cell module 10. You may provide the button which returns the content of the operation state of the apparatus 20 to a reverse direction. Thereby, the gateway apparatus 30 can switch and display the instantaneous value of the output power of the some power converter device 20, and the integrated value of the output power of the some power converter device 20 bidirectionally.
  • the gateway apparatus 30 switches and displays the interconnection state of the solar cell module 10 and the power conversion device 20 and the commercial power system 40 for each of the solar cell module 10 and the power conversion device 20, the solar cell module 10 and The administrator of the photovoltaic power generation system 1 can recognize whether or not the power conversion device 20 is operating in cooperation.
  • FIG. 7 is a diagram illustrating another example of a change in display state in the gateway device 30 according to the embodiment.
  • the display control unit 310 displays the symbol “I1” for identifying the power conversion device 20-1 and the output power of the power conversion device 20-1.
  • the display control unit 310 transitions to the first power generation display state (320a-22), the symbol “P1” for identifying the solar cell module 10-1, and The generated power of the solar cell module 10-1 is displayed.
  • the display control unit 310 transitions to the second output display state (320a-23) in response to the button unit 308A being operated once, and the symbol “I2” for identifying the power conversion device 20-2, and The output power of the power converter 20-2 is displayed.
  • the display control unit 310 transitions to the second power generation display state (320a-24), and the symbol “P2” for identifying the solar cell module 10-2, The generated power of the solar cell module 10-2 is displayed.
  • the gateway device 30 responds to the operation received by the button unit 308A, the operating state of the first power conversion device 20-1 and the first sun corresponding to the first power conversion device 20-1.
  • the operating state of the battery module 10-1, the operating state of the second power converter 20-2, and the operating state of the second solar cell module 10-2 corresponding to the second power converter 20-2 are Switch in order and display.
  • the display control unit 310 may cause the display unit 312 to display the power generation state of the solar cell module 10 and the operation state of the power conversion device 20 in a format different from the embodiment described above.
  • FIG. 8 is a diagram illustrating another display state in the gateway device 30 according to the embodiment.
  • the display control unit 310 displays, for each solar cell module 10, a list of the output command of the corresponding power conversion device 20, the power generation state of the solar cell module 10, and the operation state of the power conversion device 20.
  • the display unit 312 is preferably a display device such as a liquid crystal display in order to display the power generation state of the solar cell module 10 and the operation state of the power conversion device 20 in the format shown in FIG.
  • the display control unit 310 displays the output command value of the power conversion device 20, the generated power of the solar cell module 10, and the output power of the power conversion device 20 in a bar graph format, for example.
  • the display control unit 310 acquires the output command of the solar cell module 10 based on the identification information of the power conversion device 20 included in the control signal C output by the central control unit 306.
  • the display control unit 310 displays the output command value of the power conversion device 20, the generated power of the solar cell module 10, and the output power of the power conversion device 20 by switching the contents in response to receiving an operation on the operation unit 308. To do.
  • the display control unit 310 is operated by the operation unit 308 while displaying the output command value of the power conversion device 20-1, the generated power of the solar cell module 10-1, and the output power of the power conversion device 20-1. Is received and switched to the output command value of the power conversion device 20-2, the generated power of the solar cell module 10-2, and the output power of the power conversion device 20-2.
  • the display control unit 310 may display the power generation states of the plurality of solar cell modules 10 and the operation states of the plurality of power conversion devices 20 on one screen of the display unit 312.
  • FIG. 9 is a diagram illustrating still another display state in the gateway device 30 according to the embodiment.
  • the display control unit 310 outputs the output command value of the power converters 20-1,... 20-N, the generated power of the solar cell modules 10-1,. ⁇ ⁇ Display a list of 20-N output power.
  • the display control unit 310 may display a part of the power generation state of the plurality of solar cell modules 10 and the operation state of the power conversion device 20 within one screen.
  • the display control unit 310 scrolls the image displayed on the display unit 312 and switches between the power generation state of the solar cell module 10 and the operation state of the power conversion device 20. To display.
  • the gateway device 30 displays the output command of the corresponding power conversion device 20 and the operation state of the power conversion device 20 for each solar cell module 10 as a list, and thus the solar power generation system 1 of the solar power generation system 1 is displayed.
  • the administrator can recognize the abnormality in the power generation state of the solar cell module 10 and the operation state of the power conversion device 20.
  • a plurality of power conversion devices that transmit the power generation state of the solar cell module 10 and the operation state of the power conversion device 20 to the gateway device 30 and the operation unit 308 have received an operation. Accordingly, the power generation state of the plurality of solar cell modules 10 and the operation of the plurality of power conversion devices 20 are provided by having the gateway device 30 to switch and display for each power generation state of the solar cell module 10 and the operation state of the power conversion device 20 according to By comparing the state systems, it can be recognized that there is an abnormality in a part of the system, and the maintainability of the system can be improved.

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Abstract

A status display system according to an embodiment has multiple power conversion devices and a communication device. The power conversion devices have a power conversion unit and a transmission unit. The power conversion units are provided in correspondence with multiple solar cell modules, and convert DC power supplied from the solar cell modules to AC power. The transmission units transmit to the communication device the power generation status of the solar cell module and the operating status of the power conversion unit. The communication device has a reception unit, an operation unit, and a display unit. The reception unit receives the power generation status of the solar cell module and the operating status of the power conversion unit, as transmitted by the respective transmission units of the multiple power conversion devices. The operation unit receives operations. In response to the reception of an operation by the operation unit, the display unit switches the content of and then displays information that is based on the power generation status of the solar cell module and the operating status of the power conversion unit, as received by the reception unit.

Description

状態表示システム、状態表示方法、および状態表示装置Status display system, status display method, and status display device
　本発明の実施形態は、状態表示システム、状態表示方法、および状態表示装置に関する。 Embodiments described herein relate generally to a status display system, a status display method, and a status display device.
　従来、複数の太陽電池モジュールおよび複数の電力変換装置を備え、電力変換装置から負荷に電力を供給する発電システムが知られている。この種の発電システムは、電力変換装置ごとに直流電力を交流電力に変換して負荷に交流電力を供給する。しかしながら、この種の発電システムは、複数の太陽電池モジュールのうち一部の太陽電池モジュール、または複数の電力変換装置のうち一部の電力変換装置に異常が発生した場合に、異常が発生していない太陽電池モジュールおよび電力変換装置が継続して動作を行ってしまう場合がある。この結果、従来の発電システムは、システムにおける一部の異常を使用者に認識させることができず、システムの保守性が十分ではない場合があった。 Conventionally, a power generation system that includes a plurality of solar cell modules and a plurality of power converters and supplies power from the power converter to a load is known. This type of power generation system converts DC power into AC power for each power converter and supplies AC power to a load. However, this type of power generation system has an abnormality when an abnormality occurs in some of the solar cell modules or some of the power conversion devices among the plurality of power conversion devices. In some cases, the solar cell module and the power conversion device that are not operated continuously operate. As a result, the conventional power generation system may not allow the user to recognize some abnormality in the system, and the maintainability of the system may not be sufficient.
米国特許第８５８１４４１号明細書US Pat. No. 8,581,441 米国特許第８６２６６１６号明細書US Pat. No. 8626616 米国特許第８５３３０３５号明細書US Patent No. 8533035 米国特許第８４２８７８３号明細書U.S. Pat. No. 8,428,783 米国特許第８１８３８５２号明細書U.S. Pat. No. 8,183,852 米国特許第８０９９１９７号明細書US Patent No. 8099197
　本発明が解決しようとする課題は、システムの保守性を高くすることができる状態表示システム、状態表示方法、および状態表示装置を提供することである。 The problem to be solved by the present invention is to provide a status display system, a status display method, and a status display device that can improve the maintainability of the system.
　実施形態の状態表示システムは、複数の電力変換装置と、通信装置とを持つ。電力変換装置は、電力変換部と、送信部とを持つ。電力変換部は、複数の太陽電池モジュールに対応して設けられ、太陽電池モジュールから供給された直流電力を交流電力に変換する。送信部は、太陽電池モジュールの発電状態および電力変換部の動作状態を通信装置に送信する。通信装置は、受信部と、操作部と、表示部とを持つ。受信部は、複数の電力変換装置の送信部によりそれぞれ送信された太陽電池モジュールの発電状態および電力変換部の動作状態を受信する。操作部は、操作を受け付ける。表示部は、受信部により受信された受信部により受信された太陽電池モジュールの発電状態および電力変換部の動作状態に基づく情報を、操作部により操作を受け付けたことに応じて内容を切り替えて表示する。 The status display system of the embodiment has a plurality of power conversion devices and communication devices. The power conversion device includes a power conversion unit and a transmission unit. The power conversion unit is provided corresponding to the plurality of solar cell modules, and converts DC power supplied from the solar cell modules into AC power. The transmission unit transmits the power generation state of the solar cell module and the operation state of the power conversion unit to the communication device. The communication device includes a receiving unit, an operation unit, and a display unit. The reception unit receives the power generation state of the solar cell module and the operation state of the power conversion unit respectively transmitted by the transmission units of the plurality of power conversion devices. The operation unit accepts an operation. The display unit displays information based on the power generation state of the solar cell module and the operation state of the power conversion unit received by the reception unit received by the reception unit by switching the contents according to the operation received by the operation unit. To do.
実施形態の太陽光発電システム１の構成を示すブロック図。The block diagram which shows the structure of the solar energy power generation system 1 of embodiment. 実施形態の太陽光発電システム１における電力変換装置２０の構成図。The block diagram of the power converter device 20 in the solar energy power generation system 1 of embodiment. 実施形態の太陽光発電システム１におけるゲートウェイ装置３０の構成を示すブロック図。The block diagram which shows the structure of the gateway apparatus 30 in the solar energy power generation system 1 of embodiment. 実施形態の太陽光発電システム１における表示／操作ユニット３２０の構成の一例を示す正面図。The front view which shows an example of a structure of the display / operation unit 320 in the solar energy power generation system 1 of embodiment. 実施形態のゲートウェイ装置３０における表示状態の変化を示す図。The figure which shows the change of the display state in the gateway apparatus 30 of embodiment. 実施形態のゲートウェイ装置３０における表示状態の変化を示す図。The figure which shows the change of the display state in the gateway apparatus 30 of embodiment. 実施形態のゲートウェイ装置３０における表示状態の変化の他の例を示す図。The figure which shows the other example of the change of the display state in the gateway apparatus 30 of embodiment. 実施形態のゲートウェイ装置３０における他の表示状態を示す図。The figure which shows the other display state in the gateway apparatus 30 of embodiment. 実施形態のゲートウェイ装置３０におけるさらに他の表示状態を示す図。The figure which shows the further another display state in the gateway apparatus 30 of embodiment.
　以下、実施形態の状態表示システム、状態表示方法、および状態表示装置を、図面を参照して説明する。
　図１は、実施形態の太陽光発電システム１の構成を示すブロック図である。実施形態の太陽光発電システム１は、複数の太陽電池モジュール１０－１、・・・および１０－Ｎと、複数の電力変換装置２０－１、・・・および２０－Ｎと、ゲートウェイ装置３０と、を備える。太陽光発電システム１における太陽電池モジュール１０および電力変換装置２０には、商用電力系統４０が接続される。なお、以下の説明において、太陽電池モジュールを他の太陽電池モジュールと区別して説明しない場合には、ハイフン以降の符号を省略し、「太陽電池モジュール１０」と記載する。また、電力変換装置を他の電力変換装置と区別して説明しない場合には、ハイフン以降の符号を省略し、「電力変換装置２０」と記載する。 Hereinafter, a status display system, a status display method, and a status display device of an embodiment will be described with reference to the drawings.
Drawing 1 is a block diagram showing the composition of photovoltaic power generation system 1 of an embodiment. The photovoltaic power generation system 1 of the embodiment includes a plurality of solar cell modules 10-1,..., 10-N, a plurality of power conversion devices 20-1,. . A commercial power system 40 is connected to the solar cell module 10 and the power conversion device 20 in the solar power generation system 1. In the following description, when the solar cell module is not described separately from other solar cell modules, the reference signs after the hyphen are omitted and described as “solar cell module 10”. Moreover, when not distinguishing and explaining a power converter device from another power converter device, the code | symbol after a hyphen is abbreviate | omitted and it describes as "the power converter device 20."
　太陽光発電システム１は、電力変換装置２０を介して複数の太陽電池モジュール１０と商用電力系統４０とを接続させる。電力変換装置２０は、太陽電池モジュール１０により生成された直流電力を交流電力に変換して電力線１ａに供給する。一方、商用電力系統４０は、交流の系統電力を電力線１ａに供給する。これにより、太陽光発電システム１は、複数の太陽電池モジュール１０と商用電力系統４０と連系させて、負荷（不図示）に交流電力を供給する。 The solar power generation system 1 connects a plurality of solar cell modules 10 and the commercial power system 40 via the power conversion device 20. The power converter 20 converts the DC power generated by the solar cell module 10 into AC power and supplies it to the power line 1a. On the other hand, the commercial power system 40 supplies AC system power to the power line 1a. As a result, the solar power generation system 1 links the plurality of solar cell modules 10 and the commercial power system 40 to supply AC power to a load (not shown).
　太陽電池モジュール１０は、住宅の屋根１００ａに設置された複数の太陽電池モジュール１０のうちの一枚である。太陽電池モジュール１０は、受光した光の光エネルギーを電気エネルギーに変換し、変換した電気エネルギーを直流電力として電力変換装置２０に供給する。 The solar cell module 10 is one of the plurality of solar cell modules 10 installed on the roof 100a of the house. The solar cell module 10 converts the light energy of the received light into electric energy, and supplies the converted electric energy to the power conversion device 20 as DC power.
　電力変換装置２０は、例えば、各太陽電池モジュール１０に対して一つ取り付けられる。電力変換装置２０は、太陽電池モジュール１０と共に住宅の屋根１００ａに設置される。電力変換装置２０は、各太陽電池モジュール１０により発電された直流電力が供給される。なお、電力変換装置２０は、各太陽電池モジュール１０に対して一つ備えられているが、これに限らず、複数の太陽電池モジュール１０に対して一つの電力変換装置２０が備えられていてもよいし、一つの太陽電池モジュール１０に対して複数の電力変換装置２０が備えられていてもよい。 For example, one power conversion device 20 is attached to each solar cell module 10. The power converter 20 is installed on the roof 100a of the house together with the solar cell module 10. The power converter 20 is supplied with DC power generated by each solar cell module 10. In addition, although the one power converter device 20 is provided with respect to each solar cell module 10, it is not restricted to this, Even if the one power converter device 20 is provided with respect to the several solar cell module 10. FIG. Alternatively, a plurality of power conversion devices 20 may be provided for one solar cell module 10.
　ゲートウェイ装置３０は、住宅内の空間１００ｂまたは屋外などの分電盤付近に設けられる。ゲートウェイ装置３０は、電力変換装置２０と通信が可能であり、電力変換装置２０の動作を制御する。ゲートウェイ装置３０は、目標電力指令値を含む制御信号Ｃ－１、・・・およびＣ－Ｎを電力変換装置２０に供給する。また、ゲートウェイ装置３０は、電力変換装置２０により送信された太陽電池モジュール１０の発電状態および電力変換装置２０の動作状態を含む状態通知信号Ｒ－１、・・・およびＲ－Ｎを受信する。なお、以下の説明において、制御信号を他の制御信号と区別して説明しない場合には、ハイフン以降の符号を省略し、「制御信号Ｃ」と記載する。また、状態通知信号を他の状態通知信号と区別して説明しない場合には、ハイフン以降の符号を省略し、「状態通知信号Ｒ」と記載する。 The gateway device 30 is provided in the vicinity of a distribution board such as a space 100b in a house or outdoors. The gateway device 30 can communicate with the power conversion device 20 and controls the operation of the power conversion device 20. The gateway device 30 supplies the control signals C-1,..., And CN including the target power command value to the power conversion device 20. Further, the gateway device 30 receives state notification signals R-1,..., And RN including the power generation state of the solar cell module 10 and the operation state of the power conversion device 20 transmitted by the power conversion device 20. In the following description, when the control signal is not described separately from other control signals, the symbols after the hyphen are omitted and described as “control signal C”. In addition, in the case where the state notification signal is not described separately from other state notification signals, the reference signs after the hyphen are omitted and described as “state notification signal R”.
　図２は、実施形態の太陽光発電システム１における電力変換装置２０の構成図である。電力変換装置２０は、電力変換部２０２と、駆動制御部２０４と、出力電流センサ２０６と、無線通信部２０８とを備える。 FIG. 2 is a configuration diagram of the power conversion device 20 in the solar power generation system 1 of the embodiment. The power conversion device 20 includes a power conversion unit 202, a drive control unit 204, an output current sensor 206, and a wireless communication unit 208.
　電力変換部２０２は、複数のスイッチング素子を備えるインバータブリッジである。電力変換部２０２は、太陽電池モジュール１０と負荷５０との間に取り付けられる。電力変換部２０２は、駆動制御部２０４により出力されたスイッチング制御信号に従って複数のスイッチング素子がオンオフ制御される。これにより、電力変換部２０２は、太陽電池モジュール１０から入力された直流電力を交流電力に変換する。電力変換部２０２により変換された交流電力は、負荷５０に供給される。負荷５０は、電力変換装置２０または商用電力系統４０から供給された交流電力を消費する機器である。負荷５０は、例えば住宅における家電機器である。 The power conversion unit 202 is an inverter bridge including a plurality of switching elements. The power conversion unit 202 is attached between the solar cell module 10 and the load 50. In the power conversion unit 202, a plurality of switching elements are on / off controlled in accordance with the switching control signal output by the drive control unit 204. Thereby, the power converter 202 converts the DC power input from the solar cell module 10 into AC power. The AC power converted by the power conversion unit 202 is supplied to the load 50. The load 50 is a device that consumes AC power supplied from the power conversion device 20 or the commercial power system 40. The load 50 is, for example, a home appliance in a house.
　駆動制御部２０４は、電力変換部２０２のスイッチング素子のオンオフ動作を制御することで、電力変換部２０２により出力される交流電力を制御する。駆動制御部２０４には、無線通信部２０８から目標電力指令値が供給される。また、駆動制御部２０４には、太陽電池モジュール１０の発電電力を示す発電電圧信号Ｖｇが供給される。さらに、駆動制御部２０４には、電力変換部２０２の出力電流を示す出力電流信号Ｉｆが出力電流センサ２０６から供給される。出力電流センサ２０６は、電力変換部２０２の出力側の電力線に設けられ、電力変換部２０２の出力電流を検出して出力電流信号Ｉｆを駆動制御部２０４に出力する。駆動制御部２０４は、発電電圧信号Ｖｇおよび出力電流信号Ｉｆに基づいて、電力変換部２０２の出力電力が目標電力に近づくように電力変換部２０２により出力される交流電力を制御する。 The drive control unit 204 controls the AC power output by the power conversion unit 202 by controlling the on / off operation of the switching element of the power conversion unit 202. A target power command value is supplied from the wireless communication unit 208 to the drive control unit 204. Further, the drive control unit 204 is supplied with a generated voltage signal Vg indicating the generated power of the solar cell module 10. Further, an output current signal If indicating the output current of the power converter 202 is supplied from the output current sensor 206 to the drive controller 204. The output current sensor 206 is provided on the power line on the output side of the power conversion unit 202, detects the output current of the power conversion unit 202, and outputs the output current signal If to the drive control unit 204. Based on the generated voltage signal Vg and the output current signal If, the drive control unit 204 controls the AC power output by the power conversion unit 202 so that the output power of the power conversion unit 202 approaches the target power.
　駆動制御部２０４は、太陽電池モジュール１０の発電状態を表す値と、電力変換装置２０の動作状態を表す値を演算する電力演算部２０４ａを備える。電力演算部２０４ａは、太陽電池モジュール１０から入力された発電電圧信号Ｖｇおよび負荷５０のインピーダンスに基づいて太陽電池モジュール１０の発電電力（瞬時値）を演算する。電力演算部２０４ａは、所定の出力電圧および出力電流センサ２０６から入力された出力電流信号Ｉｆに基づいて電力変換装置２０の出力電力（瞬時値）を演算する。また、駆動制御部２０４は、複数の電力変換装置２０の出力電力、および、１時間ごとの出力電力を積算した出力電力量を演算する。なお、各太陽電池モジュール１０の発電電力量、および各電力変換装置２０の出力電力量を演算してもよい。 The drive control unit 204 includes a power calculation unit 204 a that calculates a value representing the power generation state of the solar cell module 10 and a value representing the operation state of the power conversion device 20. The power calculation unit 204 a calculates the generated power (instantaneous value) of the solar cell module 10 based on the generated voltage signal Vg input from the solar cell module 10 and the impedance of the load 50. The power calculation unit 204 a calculates the output power (instantaneous value) of the power converter 20 based on the predetermined output voltage and the output current signal If input from the output current sensor 206. Moreover, the drive control part 204 calculates the output electric energy which integrated | accumulated the output electric power of the some power converter device 20, and the output electric power for every hour. In addition, you may calculate the electric power generation amount of each solar cell module 10, and the output electric energy of each power converter device 20. FIG.
　無線通信部２０８は、アンテナ部２０８ａを備え、ゲートウェイ装置３０との間で無線通信を行う無線通信モジュールである。無線通信部２０８は、所定のプロトコルに従って通信処理を行い、所定の搬送周波数を利用してゲートウェイ装置３０との間で無線信号を送受信する。無線通信部２０８は、例えば小電力無線の９２０ＭＨｚ帯の搬送周波数を利用する。なお、無線通信部２０８の通信方式は、９２０ＭＨｚ帯の無線通信方式に限らず、他の通信方式であってもよい。他の通信方式は、例えば、電力線搬送通信（ＰＬＣ（Power　Line　Communication）方式や、２．５ＧＨｚ帯の無線通信方式などが挙げられる。 The wireless communication unit 208 is a wireless communication module that includes the antenna unit 208a and performs wireless communication with the gateway device 30. The wireless communication unit 208 performs communication processing according to a predetermined protocol, and transmits / receives a wireless signal to / from the gateway device 30 using a predetermined carrier frequency. The wireless communication unit 208 uses, for example, a low-frequency wireless carrier frequency in the 920 MHz band. The communication method of the wireless communication unit 208 is not limited to the 920 MHz band wireless communication method, and may be another communication method. Examples of other communication methods include a power line communication (PLC) method and a 2.5 GHz band wireless communication method.
　無線通信部２０８は、ゲートウェイ装置３０により送信された制御信号Ｃを受信したことに応じて、駆動制御部２０４に制御信号Ｃに含まれる目標電力指令値を出力する。無線通信部２０８は、電力演算部２０４ａにより演算された太陽電池モジュール１０の発電状態を表す値および電力変換装置２０の動作状態を表す値を含む状態通知信号Ｒをゲートウェイ装置３０に送信する。太陽電池モジュール１０の発電状態を表す値および電力変換装置２０の動作状態を表す値は、例えば太陽光発電システム１の保守を行う保守業者によって太陽電池モジュール１０および電力変換装置２０の異常を認識させる情報である。太陽電池モジュール１０および電力変換装置２０の異常は、太陽電池モジュール１０の過度な汚れ等の太陽電池モジュール１０および電力変換装置２０の発電および電力の出力に影響を与える状態である。無線通信部２０８は、太陽電池モジュール１０の発電状態および電力変換部の動作状態をゲートウェイ装置３０（通信装置）に送信する送信部として機能する。 The wireless communication unit 208 outputs the target power command value included in the control signal C to the drive control unit 204 in response to receiving the control signal C transmitted from the gateway device 30. The wireless communication unit 208 transmits a state notification signal R including the value representing the power generation state of the solar cell module 10 calculated by the power calculation unit 204 a and the value representing the operation state of the power conversion device 20 to the gateway device 30. The value representing the power generation state of the solar cell module 10 and the value representing the operation state of the power conversion device 20 make the solar cell module 10 and the power conversion device 20 malfunction recognized by, for example, a maintenance contractor who performs maintenance of the solar power generation system 1. Information. The abnormality of the solar cell module 10 and the power conversion device 20 is a state that affects the power generation and output of power of the solar cell module 10 and the power conversion device 20 such as excessive dirt of the solar cell module 10. The wireless communication unit 208 functions as a transmission unit that transmits the power generation state of the solar cell module 10 and the operation state of the power conversion unit to the gateway device 30 (communication device).
　図３は、実施形態の太陽光発電システム１におけるゲートウェイ装置３０の構成を示すブロック図である。ゲートウェイ装置３０は、複数の電力変換装置２０と通信可能な通信装置である。ゲートウェイ装置３０は、宅内通信部３０２と、無線通信部３０４と、集中制御部３０６と、操作部３０８と、表示制御部３１０と、表示部３１２とを備える。 FIG. 3 is a block diagram illustrating a configuration of the gateway device 30 in the solar power generation system 1 of the embodiment. The gateway device 30 is a communication device that can communicate with the plurality of power conversion devices 20. The gateway device 30 includes a home communication unit 302, a wireless communication unit 304, a central control unit 306, an operation unit 308, a display control unit 310, and a display unit 312.
　宅内通信部３０２は、ＬＡＮ（Local　Area　Network）等の宅内ネットワークを介して、インターネット等の外部のネットワークに接続される。宅内通信部３０２は、集中制御部３０６の制御に従って、例えば電力変換装置２０の出力電力を制御するための情報を受信する。 The home communication unit 302 is connected to an external network such as the Internet via a home network such as a LAN (Local Area Network). The in-home communication unit 302 receives, for example, information for controlling the output power of the power conversion device 20 according to the control of the central control unit 306.
　無線通信部３０４は、アンテナ部３０４ａを備え、複数の電力変換装置２０との間で無線通信を行う無線通信モジュールである。無線通信部３０４は、電力変換装置２０の無線通信部２０８と同じプロトコルに従って通信処理を行い、所定の搬送周波数を利用して無線通信部２０８との間で無線信号を送受信する。無線通信部３０４は、例えば小電力無線の９２０ＭＨｚ帯の搬送周波数を利用する。なお、無線通信部３０４の通信方式は、無線通信部２０８との間で通信可能な方式であればよい。無線通信部３０４は、複数の電力変換装置２０に制御信号Ｃを送信し、複数の電力変換装置２０により送信された状態通知信号Ｒを受信する。 The wireless communication unit 304 is a wireless communication module that includes the antenna unit 304a and performs wireless communication with the plurality of power conversion devices 20. The wireless communication unit 304 performs communication processing according to the same protocol as the wireless communication unit 208 of the power conversion device 20, and transmits and receives wireless signals to and from the wireless communication unit 208 using a predetermined carrier frequency. The wireless communication unit 304 uses, for example, a carrier frequency in the 920 MHz band of low power wireless. Note that the communication method of the wireless communication unit 304 may be any method that allows communication with the wireless communication unit 208. The wireless communication unit 304 transmits the control signal C to the plurality of power conversion devices 20 and receives the state notification signal R transmitted by the plurality of power conversion devices 20.
　集中制御部３０６は、演算回路および制御回路としてのＣＰＵ（Central　Processing　Unit）等のプロセッサが、メモリに記憶されたプログラムを実行することで機能するソフトウェア機能部であってもよいし、ＬＳＩ（Large　Scale　Integration）やＡＳＩＣ（Application　Specific　Integrated　Circuit）等のハードウェア機能部であってもよい。 The central control unit 306 may be a software function unit that functions when a processor such as a CPU (Central Processing Unit) as an arithmetic circuit and a control circuit executes a program stored in a memory, or an LSI (Large It may be a hardware function unit such as Scale Integration) or ASIC (Application Specific Integrated Circuit).
　集中制御部３０６は、各電力変換装置２０の目標電力を取得し、目標電力を示す目標電力指令値を生成する。集中制御部３０６は、無線通信部３０４を制御することで、目標電力指令値を含む制御信号Ｃを電力変換装置２０に送信させる。集中制御部３０６は、制御信号Ｃに各電力変換装置２０の識別情報を格納して、各電力変換装置２０に制御信号Ｃを受信させる。これにより、集中制御部３０６は、各電力変換装置２０の動作を制御する。また、集中制御部３０６は、無線通信部３０４を介して電力変換装置２０から受信された状態通知信号Ｒを取得する。集中制御部３０６は、状態通知信号Ｒに格納された電力変換装置２０の識別情報を参照して、電力変換装置２０の動作を監視する。集中制御部３０６は、状態通知信号Ｒに含まれる太陽電池モジュール１０の発電状態を表す値および電力変換装置２０の動作状態を表す値を表示制御部３１０に出力する。 The central control unit 306 acquires the target power of each power conversion device 20 and generates a target power command value indicating the target power. The central control unit 306 controls the wireless communication unit 304 to cause the power conversion device 20 to transmit the control signal C including the target power command value. The central control unit 306 stores the identification information of each power conversion device 20 in the control signal C, and causes each power conversion device 20 to receive the control signal C. Accordingly, the central control unit 306 controls the operation of each power conversion device 20. Further, the central control unit 306 acquires the state notification signal R received from the power conversion device 20 via the wireless communication unit 304. The central control unit 306 refers to the identification information of the power conversion device 20 stored in the state notification signal R and monitors the operation of the power conversion device 20. The central control unit 306 outputs a value representing the power generation state of the solar cell module 10 and a value representing the operation state of the power conversion device 20 included in the state notification signal R to the display control unit 310.
　操作部３０８は、例えばゲートウェイ装置３０の管理者により操作される操作インターフェースである。操作部３０８は、操作を受け付けたことに応じて操作信号を表示制御部３１０に出力する。ゲートウェイ装置３０の管理者は、例えば、太陽光発電システム１の保守業者である。太陽光発電システム１の保守業者は、太陽電池モジュール１０の発電状態および電力変換装置２０の動作状態を確認して、太陽光発電システム１の保守を実行する。 The operation unit 308 is an operation interface operated by an administrator of the gateway device 30, for example. The operation unit 308 outputs an operation signal to the display control unit 310 in response to accepting the operation. The administrator of the gateway device 30 is, for example, a maintenance company of the solar power generation system 1. The maintenance company of the solar power generation system 1 confirms the power generation state of the solar cell module 10 and the operation state of the power conversion device 20, and performs maintenance of the solar power generation system 1.
　表示制御部３１０は、表示部３１２を駆動して、表示部３１２の表示を制御する表示コントローラである。表示制御部３１０は、操作部３０８により出力された操作信号に基づいて、表示部３１２における情報の表示内容を切り替える。 The display control unit 310 is a display controller that drives the display unit 312 to control display on the display unit 312. The display control unit 310 switches display contents of information on the display unit 312 based on the operation signal output by the operation unit 308.
　表示部３１２は、各種の情報を提示する表示装置である。表示部３１２は、集中制御部３０６により表示内容が制御される。表示部３１２は、表示制御部３１０の制御に従って、太陽電池モジュール１０の発電状態および電力変換装置２０の動作状態を切り替えて表示する。 The display unit 312 is a display device that presents various types of information. The display content of the display unit 312 is controlled by the central control unit 306. The display unit 312 switches and displays the power generation state of the solar cell module 10 and the operation state of the power conversion device 20 according to the control of the display control unit 310.
　図４は、実施形態の太陽光発電システム１における表示／操作ユニット３２０の構成の一例を示す正面図である。表示／操作ユニット３２０は、操作部３０８および表示部３１２が一体形成されたものである。ゲートウェイ装置３０には、筐体から露出して表示部３１２および操作部３０８の機能を有する表示／操作ユニット３２０が取り付けられる。表示／操作ユニット３２０は、ゲートウェイ装置３０筐体のうち、例えば太陽光発電システム１の管理者により操作および視認可能な位置に取り付けられていればよい。表示／操作ユニット３２０には、数値表示部３２０ａ、ｋＷ単位用ＬＥＤ（light　emitting　diode）３２０ｂ、ｋＷｈ単位用ＬＥＤ３２０ｃ、および連系用ＬＥＤ３２０ｄが取り付けられる。 FIG. 4 is a front view showing an example of the configuration of the display / operation unit 320 in the solar power generation system 1 of the embodiment. The display / operation unit 320 includes an operation unit 308 and a display unit 312 that are integrally formed. A display / operation unit 320 having functions of a display unit 312 and an operation unit 308 is attached to the gateway device 30 so as to be exposed from the housing. The display / operation unit 320 should just be attached to the position which can be operated and visually recognized by the administrator of the photovoltaic power generation system 1 among the gateway apparatus 30 housing | casing, for example. The display / operation unit 320 is attached with a numerical value display section 320a, a kW unit LED (light emitting diode) 320b, a kWh unit LED 320c, and an interconnection LED 320d.
　数値表示部３２０ａは、例えば、横方向に一列に配列された５個の数字表示ＬＥＤである。数字表示ＬＥＤは、７個の直線が「８」の字に並べられた表示セグメントにより、それぞれの桁に０乃至９の整数値を表示する。ｋＷ単位用ＬＥＤ３２０ｂおよびｋＷｈ単位用ＬＥＤ３２０ｃは、数値表示部３２０ａの図中右側に取り付けられる。ｋＷ単位用ＬＥＤ３２０ｂは、数値表示部３２０ａにより表示されている数値の単位が瞬間的な電力［ｋＷ］であることを示す。ｋＷｈ単位用ＬＥＤ３２０ｃは、数値表示部３２０ａにより表示されている数値の単位が積算した電力［ｋＷｈ］であることを示す。連系用ＬＥＤ３２０ｄは、太陽光発電システム１の連系状態を示す。数値表示部３２０ａ、ｋＷ単位用ＬＥＤ３２０ｂ、ｋＷｈ単位用ＬＥＤ３２０ｃ、および連系用ＬＥＤ３２０ｄは、表示部３１２に相当する。また、表示／操作ユニット３２０には、操作部３０８として、押圧操作を受け付けるボタン部３０８Ａが取り付けられる。 The numerical display unit 320a is, for example, five numerical display LEDs arranged in a line in the horizontal direction. The number display LED displays an integer value of 0 to 9 in each digit by a display segment in which seven straight lines are arranged in a letter “8”. The kW unit LED 320b and the kWh unit LED 320c are attached to the right side of the numerical value display portion 320a. The kW unit LED 320b indicates that the unit of the numerical value displayed by the numerical value display unit 320a is instantaneous power [kW]. The kWh unit LED 320c indicates that the unit of the numerical value displayed by the numerical value display unit 320a is the integrated power [kWh]. The connection LED 320d indicates a connection state of the solar power generation system 1. The numerical value display unit 320a, the kW unit LED 320b, the kWh unit LED 320c, and the interconnection LED 320d correspond to the display unit 312. In addition, the display / operation unit 320 is provided with a button unit 308 </ b> A that accepts a pressing operation as the operation unit 308.
　表示制御部３１０は、太陽電池モジュール１０の発電状態および電力変換装置２０の動作状態に基づいて、数値表示部３２０ａに数値を表示させる。表示制御部３１０は、数値表示部３２０ａに表示させている太陽電池モジュール１０の発電状態および電力変換装置２０の動作状態の単位に対応して、ｋＷ単位用ＬＥＤ３２０ｂおよびｋＷｈ単位用ＬＥＤ３２０ｃのいずれか一方を点灯させる。また、表示制御部３１０は、ボタン部３０８Ａの操作に基づいて、数値表示部３２０ａに表示させる数値と、ｋＷ単位用ＬＥＤ３２０ｂおよびｋＷｈ単位用ＬＥＤ３２０ｃの点灯状態とを切り替える。 The display control unit 310 displays a numerical value on the numerical display unit 320a based on the power generation state of the solar cell module 10 and the operation state of the power conversion device 20. The display control unit 310 corresponds to the unit of the power generation state of the solar cell module 10 and the operation state of the power conversion device 20 displayed on the numerical display unit 320a, and either one of the kW unit LED 320b or the kWh unit LED 320c. Lights up. Further, the display control unit 310 switches between a numerical value to be displayed on the numerical value display unit 320a and a lighting state of the kW unit LED 320b and the kWh unit LED 320c based on the operation of the button unit 308A.
　表示制御部３１０は、太陽電池モジュール１０および電力変換装置２０ごとに、商用電力系統４０に対する連系状態に基づいて連系用ＬＥＤ３２０ｄの点灯状態を制御する。連系状態には、太陽電池モジュール１０と商用電力系統４０とが連系して負荷５０に電力を供給している連系動作状態と、商用電力系統４０が給電を停止して太陽電池モジュール１０が単独で動作している単独運転状態とが含まれる。表示制御部３１０は、連系状態を表す信号が集中制御部３０６により出力される。表示制御部３１０は、電力変換装置２０が連系動作状態である場合には連系用ＬＥＤ３２０ｄを点灯させ、電力変換装置２０が単独運転状態である場合には連系用ＬＥＤ３２０ｄを消灯させる。 The display control unit 310 controls the lighting state of the connection LED 320d for each of the solar cell module 10 and the power conversion device 20 based on the connection state with respect to the commercial power system 40. In the interconnected state, the solar cell module 10 and the commercial power system 40 are interconnected to supply power to the load 50, and the commercial power system 40 stops feeding and the solar cell module 10 Includes a single operation state in which is independently operated. In the display control unit 310, a signal indicating an interconnection state is output from the central control unit 306. The display control unit 310 turns on the connection LED 320d when the power conversion device 20 is in the connection operation state, and turns off the connection LED 320d when the power conversion device 20 is in the single operation state.
　以下、実施形態のゲートウェイ装置３０により表示部３１２の表示状態を切り替える流れを説明する。以下の説明は、太陽電池モジュール１０－１および電力変換装置２０－１の状態、太陽電池モジュール１０－２および電力変換装置２０－２の状態を、この順に切り替えて表示することを説明する。太陽電池モジュール１０－１および電力変換装置２０－１と、太陽電池モジュール１０－２および電力変換装置２０－２とは、住宅の屋根１００ａにおいて近接されて配置され、略同じ条件で動作する。図５は、実施形態のゲートウェイ装置３０における表示状態の変化を示す図である。なお、以下の説明において、ＬＥＤの点灯状態を黒丸で示し、ＬＥＤの消灯状態を白丸で示す。また、以下の説明において、３２０ａにハイフンを付した数字の順番に表示部３１２の表示状態が変化するものとする。 Hereinafter, a flow of switching the display state of the display unit 312 by the gateway device 30 of the embodiment will be described. In the following description, the states of the solar cell module 10-1 and the power conversion device 20-1 and the states of the solar cell module 10-2 and the power conversion device 20-2 are switched and displayed in this order. Solar cell module 10-1 and power conversion device 20-1, solar cell module 10-2 and power conversion device 20-2 are arranged close to each other on roof 100a of the house, and operate under substantially the same conditions. FIG. 5 is a diagram illustrating a change in display state in the gateway device 30 according to the embodiment. In the following description, the lighting state of the LED is indicated by a black circle, and the OFF state of the LED is indicated by a white circle. Further, in the following description, it is assumed that the display state of the display unit 312 changes in the order of numerals with a hyphen appended to 320a.
　表示制御部３１０は、表示部３１２の初期状態（３２０ａ－１）において、数値表示部３２０ａ、ｋＷ単位用ＬＥＤ３２０ｂ、およびｋＷｈ単位用ＬＥＤ３２０ｃを点灯させない。表示制御部３１０は、太陽電池モジュール１０の連系状態が連系動作状態であるので、連系用ＬＥＤ３２０ｄを点灯させる。表示制御部３１０は、例えば、表示部３１２の停止状態において、ボタン部３０８Ａが操作されることに応じて初期状態（３２０ａ－１）に遷移させる。 The display control unit 310 does not light the numerical value display unit 320a, the kW unit LED 320b, and the kWh unit LED 320c in the initial state (320a-1) of the display unit 312. Since the connection state of the solar cell module 10 is the connection operation state, the display control unit 310 lights the connection LED 320d. For example, when the display unit 312 is stopped, the display control unit 310 makes a transition to the initial state (320a-1) in response to the operation of the button unit 308A.
　表示制御部３１０は、初期状態（３２０ａ－１）においてボタン部３０８Ａが１回操作されたことに応じて、表示部３１２を瞬時値表示状態（３２０ａ－２）に遷移させる。表示制御部３１０は、瞬時値表示状態（３２０ａ－２）において、売電量（瞬時値）の数値を表示させるように数値表示部３２０ａを制御すると共に、ｋＷ単位用ＬＥＤ３２０ｂを点灯させる。売電量は、電力変換装置２０－１および２０－２により出力されている出力電力の合計値から負荷５０の消費電力を差し引いた値である。以降、説明を簡単にするため、負荷５０の消費電力値を０とする。表示制御部３１０は、例えば、売電量が０．６ｋＷであることを表示させる。 The display control unit 310 changes the display unit 312 to the instantaneous value display state (320a-2) in response to the button unit 308A being operated once in the initial state (320a-1). In the instantaneous value display state (320a-2), the display control unit 310 controls the numerical value display unit 320a so as to display the numerical value of the power sale amount (instantaneous value), and turns on the kW unit LED 320b. The amount of power sold is a value obtained by subtracting the power consumption of the load 50 from the total value of the output power output by the power conversion devices 20-1 and 20-2. Hereinafter, in order to simplify the description, the power consumption value of the load 50 is assumed to be zero. For example, the display control unit 310 displays that the amount of power sold is 0.6 kW.
　表示制御部３１０は、瞬時値表示状態（３２０ａ－２）においてボタン部３０８Ａが１回操作されたことに応じて、表示部３１２を積算値表示状態（３２０ａ－３）に遷移させる。表示制御部３１０は、積算値表示状態（３２０ａ－３）において、売電量（積算値）の数値を表示させるように数値表示部３２０ａを制御すると共に、ｋＷｈ単位用ＬＥＤ３２０ｃを点灯させる。売電量は、電力変換装置２０－１および２０－２により出力されている出力電力量の合計値から負荷５０の消費電力量を差し引いた値である。表示制御部３１０は、例えば、売電量が３６．０ｋＷｈであることを表示させる。 The display control unit 310 changes the display unit 312 to the integrated value display state (320a-3) in response to the button unit 308A being operated once in the instantaneous value display state (320a-2). In the integrated value display state (320a-3), the display control unit 310 controls the numerical value display unit 320a so as to display the numerical value of the power sale amount (integrated value), and turns on the kWh unit LED 320c. The power sale amount is a value obtained by subtracting the power consumption amount of the load 50 from the total value of the output power amounts output by the power conversion devices 20-1 and 20-2. For example, the display control unit 310 displays that the amount of power sold is 36.0 kWh.
　なお、実施形態のゲートウェイ装置３０は、売電量（瞬時値）として、太陽電池モジュール１０－１および太陽電池モジュール１０－２により発電されている発電電力の合計値を表示させてもよい。また、実施形態のゲートウェイ装置３０は、売電量（積算値）として、太陽電池モジュール１０－１および太陽電池モジュール１０－２により発電している発電電力量の合計値を表示させてもよい。この実施形態のゲートウェイ装置３０は、太陽電池モジュール１０の売電量（瞬時値）と売電量（積算値）とを切り替えて表示する。 Note that the gateway device 30 of the embodiment may display the total value of the generated power generated by the solar cell module 10-1 and the solar cell module 10-2 as the amount of power sold (instantaneous value). In addition, the gateway device 30 of the embodiment may display the total value of the generated power generated by the solar cell module 10-1 and the solar cell module 10-2 as the amount of power sold (integrated value). The gateway device 30 of this embodiment switches and displays the power sale amount (instantaneous value) and the power sale amount (integrated value) of the solar cell module 10.
　表示制御部３１０は、積算値表示状態（３２０ａ－３）においてボタン部３０８Ａが１回操作されたことに応じて、表示部３１２を第１の発電表示状態（３２０ａ－４）に遷移させる。表示制御部３１０は、第１の発電表示状態（３２０ａ－４）において、太陽電池モジュール１０－１の発電電力（瞬時値）の数値を表示させるように数値表示部３２０ａを制御すると共に、ｋＷ単位用ＬＥＤ３２０ｂを点灯させる。表示制御部３１０は、例えば、太陽電池モジュール１０－１の発電電力が０．３ｋＷであることを表示させる。表示制御部３１０は、太陽電池モジュール１０－１の発電電力と共に、太陽電池モジュール１０－１を識別する記号「Ｐ１」を数値表示部３２０ａに表示させてもよい。表示制御部３１０は、集中制御部３０６により識別情報によって判定された結果に基づいて、太陽電池モジュール１０を識別する記号を表示させる。 The display control unit 310 changes the display unit 312 to the first power generation display state (320a-4) in response to the button unit 308A being operated once in the integrated value display state (320a-3). The display control unit 310 controls the numerical value display unit 320a to display the numerical value of the generated power (instantaneous value) of the solar cell module 10-1 in the first power generation display state (320a-4), and at the same time, the unit is kW. LED 320b is turned on. For example, the display control unit 310 displays that the generated power of the solar cell module 10-1 is 0.3 kW. The display control unit 310 may display the symbol “P1” for identifying the solar cell module 10-1 on the numerical value display unit 320a together with the generated power of the solar cell module 10-1. The display control unit 310 displays a symbol for identifying the solar cell module 10 based on the result determined by the identification information by the central control unit 306.
　表示制御部３１０は、第１の発電表示状態（３２０ａ－４）においてボタン部３０８Ａが１回操作されたことに応じて、表示部３１２を第１の出力表示状態（３２０ａ－５）に遷移させる。表示制御部３１０は、第１の出力表示状態（３２０ａ－５）において、電力変換装置２０－１の出力電力（瞬時値）の数値を表示させるように数値表示部３２０ａを制御すると共に、ｋＷ単位用ＬＥＤ３２０ｂを点灯させる。表示制御部３１０は、例えば、電力変換装置２０－１の出力電力が０．３ｋＷであることを表示させる。表示制御部３１０は、電力変換装置２０－１の出力電力と共に、電力変換装置２０－１を識別する記号「Ｉ１」を数値表示部３２０ａに表示させてもよい。表示制御部３１０は、集中制御部３０６により識別情報によって判定された結果に基づいて、電力変換装置２０を識別する記号を表示させる。 The display control unit 310 transitions the display unit 312 to the first output display state (320a-5) in response to the button unit 308A being operated once in the first power generation display state (320a-4). . The display control unit 310 controls the numerical display unit 320a to display the numerical value of the output power (instantaneous value) of the power conversion device 20-1 in the first output display state (320a-5), and also displays the unit of kW. LED 320b is turned on. For example, the display control unit 310 displays that the output power of the power conversion device 20-1 is 0.3 kW. The display control unit 310 may display the symbol “I1” for identifying the power conversion device 20-1 on the numerical display unit 320a together with the output power of the power conversion device 20-1. The display control unit 310 displays a symbol for identifying the power conversion device 20 based on the result determined by the identification information by the central control unit 306.
　表示制御部３１０は、第１の出力表示状態（３２０ａ－５）においてボタン部３０８Ａが１回操作されたことに応じて、表示部３１２を第２の発電表示状態（３２０ａ－６）に遷移させる。表示制御部３１０は、第２の発電表示状態（３２０ａ－６）において、太陽電池モジュール１０－２の発電電力（瞬時値）の数値を表示させるように数値表示部３２０ａを制御すると共に、ｋＷ単位用ＬＥＤ３２０ｂを点灯させる。表示制御部３１０は、例えば、太陽電池モジュール１０－２の発電電力が０．３ｋＷであることを表示させる。表示制御部３１０は、太陽電池モジュール１０－２の発電電力と共に、太陽電池モジュール１０－２を識別する記号「Ｐ２」を数値表示部３２０ａに表示させてもよい。 The display control unit 310 transitions the display unit 312 to the second power generation display state (320a-6) in response to the button unit 308A being operated once in the first output display state (320a-5). . The display control unit 310 controls the numerical value display unit 320a so as to display the numerical value of the generated power (instantaneous value) of the solar cell module 10-2 in the second power generation display state (320a-6), and also displays kW units. LED 320b is turned on. For example, the display control unit 310 displays that the generated power of the solar cell module 10-2 is 0.3 kW. The display control unit 310 may display the symbol “P2” for identifying the solar cell module 10-2 on the numerical value display unit 320a together with the generated power of the solar cell module 10-2.
　表示制御部３１０は、第２の発電表示状態（３２０ａ－６）においてボタン部３０８Ａが１回操作されたことに応じて、表示部３１２を第２の出力表示状態（３２０ａ－７）に遷移させる。表示制御部３１０は、第２の出力表示状態（３２０ａ－７）において、電力変換装置２０－２の出力電力（瞬時値）の数値を表示させるように数値表示部３２０ａを制御すると共に、ｋＷ単位用ＬＥＤ３２０ｂを点灯させる。表示制御部３１０は、例えば、電力変換装置２０－２の出力電力が０．３ｋＷであることを表示させる。表示制御部３１０は、電力変換装置２０－２の出力電力と共に、電力変換装置２０－２を識別する記号「Ｉ２」を数値表示部３２０ａに表示させてもよい。 The display control unit 310 transitions the display unit 312 to the second output display state (320a-7) in response to the button unit 308A being operated once in the second power generation display state (320a-6). . The display control unit 310 controls the numerical value display unit 320a to display the numerical value of the output power (instantaneous value) of the power converter 20-2 in the second output display state (320a-7), and at the same time, the unit is kW. LED 320b is turned on. For example, the display control unit 310 displays that the output power of the power conversion device 20-2 is 0.3 kW. The display control unit 310 may display the symbol “I2” for identifying the power conversion device 20-2 on the numerical display unit 320a together with the output power of the power conversion device 20-2.
　表示制御部３１０は、第２の出力表示状態（３２０ａ－７）においてボタン部３０８Ａが１回操作されたことに応じて、表示部３１２を初期状態（３２０ａ－１８）に遷移させる。 The display control unit 310 changes the display unit 312 to the initial state (320a-18) in response to the button unit 308A being operated once in the second output display state (320a-7).
　以上のように、ゲートウェイ装置３０は、太陽電池モジュール１０の発電状態および電力変換装置２０の動作状態に基づく情報を、ボタン部３０８Ａの操作を受け付けたことに応じて内容を切り替えて表示する。さらに具体的には、ゲートウェイ装置３０は、ボタン部３０８Ａにより操作を受け付けたことに応じて、第１の太陽電池モジュール１０－１の動作状態、第１の太陽電池モジュール１０－１に対応する電力変換装置２０－１の動作状態、第２の太陽電池モジュール１０－２の動作状態、および第２の太陽電池モジュール１０－２に対応する電力変換装置２０－２の動作状態を、この順に切り替えて表示する。この結果、ゲートウェイ装置３０は、太陽電池モジュール１０－1の発電電力と太陽電池モジュール１０－２の発電電力とが同じであること、および電力変換装置２０－1の出力電力と電力変換装置２０－２の出力電力とが同じであることを表示させる。これにより、ゲートウェイ装置３０は、ゲートウェイ装置３０の管理者に太陽電池モジュール１０および電力変換装置２０の異常がないことを認識させることができる。 As described above, the gateway device 30 displays information based on the power generation state of the solar cell module 10 and the operation state of the power conversion device 20 by switching the contents according to the reception of the operation of the button unit 308A. More specifically, the gateway device 30 responds to the operation received by the button unit 308A, and the operation state of the first solar cell module 10-1 and the power corresponding to the first solar cell module 10-1. The operation state of the conversion device 20-1, the operation state of the second solar cell module 10-2, and the operation state of the power conversion device 20-2 corresponding to the second solar cell module 10-2 are switched in this order. indicate. As a result, in the gateway device 30, the generated power of the solar cell module 10-1 and the generated power of the solar cell module 10-2 are the same, and the output power of the power conversion device 20-1 and the power conversion device 20- 2 indicates that the output power is the same. Thereby, the gateway apparatus 30 can make the administrator of the gateway apparatus 30 recognize that there is no abnormality in the solar cell module 10 and the power conversion apparatus 20.
　以下、太陽電池モジュール１０に異常がある場合における、実施形態のゲートウェイ装置３０により表示部３１２の表示状態を切り替える流れを説明する。図６は、実施形態のゲートウェイ装置３０における表示状態の変化を示す図である。
　表示制御部３１０は、表示部３１２の初期状態（３２０ａ－１１）において、上述した初期状態（３２０ａ－１）と同様に表示部３１２を制御する。 Hereinafter, the flow of switching the display state of the display unit 312 by the gateway device 30 according to the embodiment when there is an abnormality in the solar cell module 10 will be described. FIG. 6 is a diagram illustrating a change in display state in the gateway device 30 according to the embodiment.
The display control unit 310 controls the display unit 312 in the initial state (320a-11) of the display unit 312 as in the above-described initial state (320a-1).
　表示制御部３１０は、初期状態（３２０ａ－１１）においてボタン部３０８Ａが１回操作されたことに応じて、表示部３１２を瞬時値表示状態（３２０ａ－１２）に遷移させる。表示制御部３１０は、売電量が０．４ｋＷであることを表示させる。 The display control unit 310 changes the display unit 312 to the instantaneous value display state (320a-12) in response to the button unit 308A being operated once in the initial state (320a-11). The display control unit 310 displays that the amount of power sold is 0.4 kW.
　表示制御部３１０は、瞬時値表示状態（３２０ａ－１２）においてボタン部３０８Ａが１回操作されたことに応じて、表示部３１２を積算値表示状態（３２０ａ－１３）に遷移させる。表示制御部３１０は、売電量が２４．０ｋＷｈであることを表示させる。 The display control unit 310 changes the display unit 312 to the integrated value display state (320a-13) in response to the button unit 308A being operated once in the instantaneous value display state (320a-12). The display control unit 310 displays that the amount of power sold is 24.0 kWh.
　表示制御部３１０は、瞬時値表示状態（３２０ａ－１３）においてボタン部３０８Ａが１回操作されたことに応じて、表示部３１２を第１の発電表示状態（３２０ａ－１４）に遷移させる。表示制御部３１０は、太陽電池モジュール１０－１を識別する記号「Ｐ１」、および太陽電池モジュール１０－１の発電電力が０．３ｋＷであることを表示させる。 The display control unit 310 transitions the display unit 312 to the first power generation display state (320a-14) in response to the button unit 308A being operated once in the instantaneous value display state (320a-13). The display control unit 310 displays a symbol “P1” for identifying the solar cell module 10-1 and that the generated power of the solar cell module 10-1 is 0.3 kW.
　表示制御部３１０は、第１の発電表示状態（３２０ａ－１４）においてボタン部３０８Ａが１回操作されたことに応じて、表示部３１２を第１の出力表示状態（３２０ａ－１５）に遷移させる。表示制御部３１０は、電力変換装置２０－１を識別する記号「Ｉ１」、および電力変換装置２０－１の出力電力が０．３ｋＷであることを表示させる。 The display control unit 310 transitions the display unit 312 to the first output display state (320a-15) in response to the button unit 308A being operated once in the first power generation display state (320a-14). . Display control unit 310 displays symbol “I1” for identifying power conversion device 20-1 and that the output power of power conversion device 20-1 is 0.3 kW.
　表示制御部３１０は、第１の出力表示状態（３２０ａ－１５）においてボタン部３０８Ａが１回操作されたことに応じて、表示部３１２を第２の発電表示状態（３２０ａ－１６）に遷移させる。表示制御部３１０は、太陽電池モジュール１０－２を識別する記号「Ｐ２」、および太陽電池モジュール１０－２の発電電力が０．１ｋＷであることを表示させる。 The display control unit 310 transitions the display unit 312 to the second power generation display state (320a-16) in response to the button unit 308A being operated once in the first output display state (320a-15). . The display control unit 310 displays a symbol “P2” for identifying the solar cell module 10-2 and that the generated power of the solar cell module 10-2 is 0.1 kW.
　表示制御部３１０は、第２の発電表示状態（３２０ａ－１６）においてボタン部３０８Ａが１回操作されたことに応じて、表示部３１２を第２の出力表示状態（３２０ａ－１７）に遷移させる。表示制御部３１０は、電力変換装置２０－２を識別する記号「Ｉ２」、および電力変換装置２０－２の出力電力が０．１ｋＷであることを表示させる。 The display control unit 310 transitions the display unit 312 to the second output display state (320a-17) in response to the button unit 308A being operated once in the second power generation display state (320a-16). . The display control unit 310 displays the symbol “I2” for identifying the power conversion device 20-2 and that the output power of the power conversion device 20-2 is 0.1 kW.
　表示制御部３１０は、第２の出力表示状態（３２０ａ－１７）においてボタン部３０８Ａが１回操作されたことに応じて、表示部３１２を初期状態（３２０ａ－１８）に遷移させる。 The display control unit 310 changes the display unit 312 to the initial state (320a-18) in response to the button unit 308A being operated once in the second output display state (320a-17).
　以上のように、ゲートウェイ装置３０は、太陽電池モジュール１０の発電状態および電力変換装置２０の動作状態に基づく情報を、ボタン部３０８Ａの操作を受け付けたことに応じて内容を切り替えて表示する。この結果、ゲートウェイ装置３０は、太陽電池モジュール１０－２の発電電力が太陽電池モジュール１０－２の発電電力よりも低いこと、および電力変換装置２０－２の出力電力が電力変換装置２０－１の出力電力よりも低いことを表示させる。これにより、ゲートウェイ装置３０は、ゲートウェイ装置３０の管理者に太陽電池モジュール１０－２の異常があることを認識させることができる。例えば、複数の太陽電池モジュール１０が同じ条件で近接して住宅の屋根１００ａに設置されている場合には、複数の太陽電池モジュール１０の発電状態は同じまたは近似する。これに対し、ゲートウェイ装置３０は、太陽電池モジュール１０－２の発電電力が太陽電池モジュール１０－１の発電電力よりも小さいため、太陽電池モジュール１０の異常を認識させることできる。 As described above, the gateway device 30 displays information based on the power generation state of the solar cell module 10 and the operation state of the power conversion device 20 by switching the contents according to the reception of the operation of the button unit 308A. As a result, in the gateway device 30, the generated power of the solar cell module 10-2 is lower than the generated power of the solar cell module 10-2, and the output power of the power conversion device 20-2 is that of the power conversion device 20-1. Display that the output power is lower. Thereby, the gateway apparatus 30 can make the administrator of the gateway apparatus 30 recognize that there is an abnormality in the solar cell module 10-2. For example, when the plurality of solar cell modules 10 are installed close to each other under the same conditions on the roof 100a of the house, the power generation states of the plurality of solar cell modules 10 are the same or approximate. On the other hand, the gateway device 30 can recognize the abnormality of the solar cell module 10 because the generated power of the solar cell module 10-2 is smaller than the generated power of the solar cell module 10-1.
　また、ゲートウェイ装置３０によれば、太陽電池モジュール１０の発電状態および電力変換装置２０の動作状態に基づく情報を切り替えて表示するので、表示部３１２の表示サイズが小さくても、太陽電池モジュール１０および電力変換装置２０の情報を十分に表示することができる。 In addition, according to the gateway device 30, since the information based on the power generation state of the solar cell module 10 and the operation state of the power conversion device 20 is switched and displayed, even if the display size of the display unit 312 is small, the solar cell module 10 and Information of the power converter 20 can be displayed sufficiently.
　また、ゲートウェイ装置３０は、ボタン部３０８Ａにより操作を受け付けたことに応じて、太陽電池モジュール１０の発電状態と、当該太陽電池モジュール１０に接続された電力変換装置２０の動作状態との組を、組ごとに順に切り替えて表示する。すなわち、ゲートウェイ装置３０は、太陽電池モジュール１０－１の発電状態と電力変換装置２０－１の動作状態との組と、太陽電池モジュール１０－２の発電状態と電力変換装置２０－２の動作状態との組とを、この順に切り替えて表示する。これにより、ゲートウェイ装置３０によれば、太陽電池モジュール１０と電力変換装置２０との組同士を比較させることができ、太陽電池モジュール１０および電力変換装置２０の組単位で異常を認識させることができる。 In addition, the gateway device 30 determines a set of the power generation state of the solar cell module 10 and the operation state of the power conversion device 20 connected to the solar cell module 10 in response to receiving the operation by the button unit 308A. Switch and display each group in turn. That is, the gateway device 30 includes a set of the power generation state of the solar cell module 10-1 and the operation state of the power conversion device 20-1, the power generation state of the solar cell module 10-2, and the operation state of the power conversion device 20-2. Are displayed in this order. Thereby, according to the gateway apparatus 30, the group of the solar cell module 10 and the power converter device 20 can be compared, and abnormality can be recognized by the group unit of the solar cell module 10 and the power converter device 20. .
　さらに、ゲートウェイ装置３０は、ボタン部３０８Ａにより操作を受け付けたことに応じて、太陽電池モジュール１０の発電状態、太陽電池モジュール１０に対応する電力変換装置２０の出力状態を、この順で切り替えて表示するので、太陽電池モジュール１０の発電状態と、当該太陽電池モジュール１０に対応した電力変換装置２０の出力状態とを太陽光発電システム１の管理者に比較させることができる。この結果、ゲートウェイ装置３０によれば、太陽電池モジュール１０と電力変換装置２０との何れに異常があるかを認識させることができる。 Further, the gateway device 30 switches and displays the power generation state of the solar cell module 10 and the output state of the power conversion device 20 corresponding to the solar cell module 10 in this order in response to receiving the operation by the button unit 308A. Therefore, the administrator of the photovoltaic power generation system 1 can compare the power generation state of the solar cell module 10 and the output state of the power conversion device 20 corresponding to the solar cell module 10. As a result, the gateway device 30 can recognize which of the solar cell module 10 and the power conversion device 20 is abnormal.
　さらに、ゲートウェイ装置３０は、複数の太陽電池モジュール１０に接続された複数の電力変換装置２０の出力電力の瞬時値と、複数の電力変換装置２０の出力電力の所定時間における積算値とを切り替えて表示するので、太陽光発電システム１の全体に異常があるか否かを太陽光発電システム１の管理者に認識させることができる。 Further, the gateway device 30 switches between the instantaneous value of the output power of the plurality of power conversion devices 20 connected to the plurality of solar cell modules 10 and the integrated value of the output power of the plurality of power conversion devices 20 at a predetermined time. Since it displays, the administrator of the solar power generation system 1 can recognize whether there is an abnormality in the entire solar power generation system 1.
　また、ゲートウェイ装置３０は、操作部３０８として太陽電池モジュール１０の発電状態および電力変換装置２０の動作状態の内容を一方向に切り替えるボタン部３０８Ａに加えて、太陽電池モジュール１０の発電状態および電力変換装置２０の動作状態の内容を逆方向に戻すボタンを備えていてもよい。これにより、ゲートウェイ装置３０は、複数の電力変換装置２０の出力電力の瞬時値と、複数の電力変換装置２０の出力電力の積算値とを双方向に切り替えて表示することができる。 In addition to the button unit 308A that switches the contents of the power generation state of the solar cell module 10 and the operation state of the power conversion device 20 in one direction as the operation unit 308, the gateway device 30 also generates the power generation state and power conversion of the solar cell module 10. You may provide the button which returns the content of the operation state of the apparatus 20 to a reverse direction. Thereby, the gateway apparatus 30 can switch and display the instantaneous value of the output power of the some power converter device 20, and the integrated value of the output power of the some power converter device 20 bidirectionally.
　さらに、ゲートウェイ装置３０は、太陽電池モジュール１０および電力変換装置２０と商用電力系統４０との連系状態を、太陽電池モジュール１０および電力変換装置２０ごとに切り替えて表示するので、太陽電池モジュール１０および電力変換装置２０が連携して動作しているか否かを太陽光発電システム１の管理者に認識させることができる。 Furthermore, since the gateway apparatus 30 switches and displays the interconnection state of the solar cell module 10 and the power conversion device 20 and the commercial power system 40 for each of the solar cell module 10 and the power conversion device 20, the solar cell module 10 and The administrator of the photovoltaic power generation system 1 can recognize whether or not the power conversion device 20 is operating in cooperation.
　また、実施形態のゲートウェイ装置３０は、太陽電池モジュール１０の発電状態、電力変換装置２０の動作状態の順に切り替えて表示させたが、電力変換装置２０の動作状態、太陽電池モジュール１０の発電状態の順に切り替えて表示させてもよい。図７は、施形態のゲートウェイ装置３０における表示状態の変化の他の例を示す図である。表示制御部３１０は、第１の出力表示状態（３２０－２１）において、電力変換装置２０－１を識別する記号「Ｉ１」、および電力変換装置２０－１の出力電力を表示させる。表示制御部３１０は、ボタン部３０８Ａが１回操作されたことに応じて、第１の発電表示状態（３２０ａ－２２）に遷移させ、太陽電池モジュール１０－１を識別する記号「Ｐ１」、および太陽電池モジュール１０－１の発電電力を表示させる。表示制御部３１０は、ボタン部３０８Ａが１回操作されたことに応じて、第２の出力表示状態（３２０ａ－２３）に遷移させ、電力変換装置２０－２を識別する記号「Ｉ２」、および電力変換装置２０－２の出力電力を表示させる。表示制御部３１０は、ボタン部３０８Ａが１回操作されたことに応じて、を第２の発電表示状態（３２０ａ－２４）に遷移させ、太陽電池モジュール１０－２を識別する記号「Ｐ２」、および太陽電池モジュール１０－２の発電電力を表示させる。 Moreover, although the gateway apparatus 30 of embodiment switched and displayed in order of the electric power generation state of the solar cell module 10, and the operation state of the power converter device 20, the operation state of the power converter device 20 and the electric power generation state of the solar cell module 10 were displayed. You may switch and display in order. FIG. 7 is a diagram illustrating another example of a change in display state in the gateway device 30 according to the embodiment. In the first output display state (320-21), the display control unit 310 displays the symbol “I1” for identifying the power conversion device 20-1 and the output power of the power conversion device 20-1. In response to the button unit 308A being operated once, the display control unit 310 transitions to the first power generation display state (320a-22), the symbol “P1” for identifying the solar cell module 10-1, and The generated power of the solar cell module 10-1 is displayed. The display control unit 310 transitions to the second output display state (320a-23) in response to the button unit 308A being operated once, and the symbol “I2” for identifying the power conversion device 20-2, and The output power of the power converter 20-2 is displayed. In response to the button unit 308A being operated once, the display control unit 310 transitions to the second power generation display state (320a-24), and the symbol “P2” for identifying the solar cell module 10-2, The generated power of the solar cell module 10-2 is displayed.
　これにより、ゲートウェイ装置３０は、ボタン部３０８Ａにより操作を受け付けたことに応じて、第１の電力変換装置２０－１の動作状態、第１の電力変換装置２０－１に対応する第１の太陽電池モジュール１０－１の動作状態、第２の電力変換装置２０－２の動作状態、および第２の電力変換装置２０－２に対応する第２の太陽電池モジュール１０－２の動作状態を、この順に切り替えて表示する。 Thereby, the gateway device 30 responds to the operation received by the button unit 308A, the operating state of the first power conversion device 20-1 and the first sun corresponding to the first power conversion device 20-1. The operating state of the battery module 10-1, the operating state of the second power converter 20-2, and the operating state of the second solar cell module 10-2 corresponding to the second power converter 20-2 are Switch in order and display.
　表示制御部３１０は、上述した実施形態と異なる形式で太陽電池モジュール１０の発電状態および電力変換装置２０の動作状態を表示部３１２に表示させてもよい。図８は、実施形態のゲートウェイ装置３０における他の表示状態を示す図である。
　表示制御部３１０は、太陽電池モジュール１０ごとに、対応する電力変換装置２０の出力指令、太陽電池モジュール１０の発電状態、および電力変換装置２０の動作状態を一覧表示させる。表示部３１２は、図８に示すような形式で太陽電池モジュール１０の発電状態および電力変換装置２０の動作状態を表示させるため、例えば液晶ディスプレイ等の表示装置であることが望ましい。 The display control unit 310 may cause the display unit 312 to display the power generation state of the solar cell module 10 and the operation state of the power conversion device 20 in a format different from the embodiment described above. FIG. 8 is a diagram illustrating another display state in the gateway device 30 according to the embodiment.
The display control unit 310 displays, for each solar cell module 10, a list of the output command of the corresponding power conversion device 20, the power generation state of the solar cell module 10, and the operation state of the power conversion device 20. The display unit 312 is preferably a display device such as a liquid crystal display in order to display the power generation state of the solar cell module 10 and the operation state of the power conversion device 20 in the format shown in FIG.
　表示制御部３１０は、例えば、棒グラフの形式で、電力変換装置２０の出力指令値、太陽電池モジュール１０の発電電力、および電力変換装置２０の出力電力を表示させる。表示制御部３１０は、太陽電池モジュール１０の出力指令を、集中制御部３０６により出力された制御信号Ｃに含まれる電力変換装置２０の識別情報に基づいて取得する。表示制御部３１０は、電力変換装置２０の出力指令値、太陽電池モジュール１０の発電電力、および電力変換装置２０の出力電力を、操作部３０８に対する操作を受け付けたことに応じて内容を切り替えて表示する。表示制御部３１０は、例えば電力変換装置２０－１の出力指令値、太陽電池モジュール１０－１の発電電力、および電力変換装置２０－１の出力電力を表示させた状態で、操作部３０８が操作を受け付けたことに応じて、電力変換装置２０－２の出力指令値、太陽電池モジュール１０－２の発電電力、および電力変換装置２０－２の出力電力に切り替えて表示させる。 The display control unit 310 displays the output command value of the power conversion device 20, the generated power of the solar cell module 10, and the output power of the power conversion device 20 in a bar graph format, for example. The display control unit 310 acquires the output command of the solar cell module 10 based on the identification information of the power conversion device 20 included in the control signal C output by the central control unit 306. The display control unit 310 displays the output command value of the power conversion device 20, the generated power of the solar cell module 10, and the output power of the power conversion device 20 by switching the contents in response to receiving an operation on the operation unit 308. To do. For example, the display control unit 310 is operated by the operation unit 308 while displaying the output command value of the power conversion device 20-1, the generated power of the solar cell module 10-1, and the output power of the power conversion device 20-1. Is received and switched to the output command value of the power conversion device 20-2, the generated power of the solar cell module 10-2, and the output power of the power conversion device 20-2.
　また、表示制御部３１０は、複数の太陽電池モジュール１０の発電状態および複数の電力変換装置２０の動作状態を表示部３１２の一画面内に表示させてもよい。図９は、実施形態のゲートウェイ装置３０におけるさらに他の表示状態を示す図である。表示制御部３１０は、電力変換装置２０－１、・・・２０－Ｎの出力指令値、太陽電池モジュール１０－１、・・・１０－Ｎの発電電力、および電力変換装置２０－１、・・・２０－Ｎの出力電力を一覧表示させる。また、表示制御部３１０は、複数の太陽電池モジュール１０の発電状態および電力変換装置２０の動作状態のうち一部を一画面内に表示させてもよい。表示制御部３１０は、操作部３０８の操作を受け付けたことに応じて、表示部３１２に表示させている画像をスクロールさせて、太陽電池モジュール１０の発電状態および電力変換装置２０の動作状態を切り替えて表示する。 Further, the display control unit 310 may display the power generation states of the plurality of solar cell modules 10 and the operation states of the plurality of power conversion devices 20 on one screen of the display unit 312. FIG. 9 is a diagram illustrating still another display state in the gateway device 30 according to the embodiment. The display control unit 310 outputs the output command value of the power converters 20-1,... 20-N, the generated power of the solar cell modules 10-1,.・ ・ Display a list of 20-N output power. Further, the display control unit 310 may display a part of the power generation state of the plurality of solar cell modules 10 and the operation state of the power conversion device 20 within one screen. In response to accepting the operation of the operation unit 308, the display control unit 310 scrolls the image displayed on the display unit 312 and switches between the power generation state of the solar cell module 10 and the operation state of the power conversion device 20. To display.
　ゲートウェイ装置３０は、太陽電池モジュール１０毎に、対応する電力変換装置２０の出力指令、電力変換装置２０の動作状態を一覧表示することによって、上述した実施形態と同様に、太陽光発電システム１の管理者に太陽電池モジュール１０の発電状態および電力変換装置２０の動作状態の異常を認識させることができる。 The gateway device 30 displays the output command of the corresponding power conversion device 20 and the operation state of the power conversion device 20 for each solar cell module 10 as a list, and thus the solar power generation system 1 of the solar power generation system 1 is displayed. The administrator can recognize the abnormality in the power generation state of the solar cell module 10 and the operation state of the power conversion device 20.
　以上説明した少なくともひとつの実施形態によれば、太陽電池モジュール１０の発電状態および電力変換装置２０の動作状態をゲートウェイ装置３０に送信する複数の電力変換装置と、操作部３０８により操作を受け付けたことに応じて太陽電池モジュール１０の発電状態および電力変換装置２０の動作状態ごとに切り替えて表示するゲートウェイ装置３０を持つことにより、複数の太陽電池モジュール１０の発電状態および複数の電力変換装置２０の動作状態システムを比較してシステムの一部に異常があることを認識させることができ、システムの保守性を高くすることができる。 According to at least one embodiment described above, a plurality of power conversion devices that transmit the power generation state of the solar cell module 10 and the operation state of the power conversion device 20 to the gateway device 30 and the operation unit 308 have received an operation. Accordingly, the power generation state of the plurality of solar cell modules 10 and the operation of the plurality of power conversion devices 20 are provided by having the gateway device 30 to switch and display for each power generation state of the solar cell module 10 and the operation state of the power conversion device 20 according to By comparing the state systems, it can be recognized that there is an abnormality in a part of the system, and the maintainability of the system can be improved.
　本発明のいくつかの実施形態を説明したが、これらの実施形態は、例として提示したものであり、発明の範囲を限定することは意図していない。これら実施形態は、その他の様々な形態で実施されることが可能であり、発明の要旨を逸脱しない範囲で、種々の省略、置き換え、変更を行うことができる。これら実施形態やその変形は、発明の範囲や要旨に含まれると同様に、特許請求の範囲に記載された発明とその均等の範囲に含まれるものである。 Although several embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and the equivalents thereof.

Claims (11)

  1. 　複数の太陽電池モジュールに対応して設けられ、前記太陽電池モジュールから供給された直流電力を交流電力に変換する電力変換部、および、前記太陽電池モジュールの発電状態および前記電力変換部の動作状態を通信装置に送信する送信部を備える複数の電力変換装置と、
    　前記複数の電力変換装置の送信部によりそれぞれ送信された前記太陽電池モジュールの発電状態および前記電力変換部の動作状態を受信する受信部、操作を受け付ける操作部、および、前記受信部により受信された前記太陽電池モジュールの発電状態および前記電力変換部の動作状態に基づく情報を、前記操作部により操作を受け付けたことに応じて内容を切り替えて表示する表示部を備える前記通信装置と、
    　を備える状態表示システム。     A power conversion unit that is provided corresponding to a plurality of solar cell modules and converts DC power supplied from the solar cell module into AC power, and a power generation state of the solar cell module and an operation state of the power conversion unit. A plurality of power conversion devices including a transmission unit for transmitting to a communication device;
    The receiving unit that receives the power generation state of the solar cell module and the operating state of the power conversion unit respectively transmitted by the transmission units of the plurality of power conversion devices, the operation unit that receives an operation, and the reception unit The communication device including a display unit that displays information based on the power generation state of the solar cell module and the operation state of the power conversion unit by switching the content in response to receiving an operation by the operation unit;
    A status display system comprising:
  2. 　前記操作部は、押圧操作を受け付けるボタン部を備え、
    　前記表示部は、前記ボタン部に対する押圧操作を受け付けたことに応じて、前記太陽電池モジュールの発電状態および前記電力変換部の動作状態に基づく情報の内容を切り替えて表示する、
    　請求項１に記載の状態表示システム。     The operation unit includes a button unit that receives a pressing operation,
    The display unit switches and displays the content of information based on the power generation state of the solar cell module and the operation state of the power conversion unit in response to receiving a pressing operation on the button unit.
    The status display system according to claim 1.
  3. 　前記表示部は、前記操作部により操作を受け付けたことに応じて、前記複数の太陽電池モジュールに含まれる第１の太陽電池モジュールの発電状態、前記第１の太陽電池モジュールに対応する電力変換装置の動作状態、前記複数の太陽電池モジュールに含まれる第２の太陽電池モジュールの発電状態、および前記第２の太陽電池モジュールに対応する電力変換装置の動作状態を、この順に切り替えて表示する、
    　請求項１に記載の状態表示システム。     In response to receiving the operation by the operation unit, the display unit generates power of a first solar cell module included in the plurality of solar cell modules, and a power conversion device corresponding to the first solar cell module The operation state, the power generation state of the second solar cell module included in the plurality of solar cell modules, and the operation state of the power conversion device corresponding to the second solar cell module are switched in this order and displayed.
    The status display system according to claim 1.
  4. 　前記表示部は、前記操作部により操作を受け付けたことに応じて、前記複数の太陽電池モジュールに含まれる第１の電力変換装置の動作状態、前記第１の電力変換装置に対応する第１の太陽電池モジュールの発電状態、前記複数の太陽電池モジュールに含まれる第２の電力変換装置の動作状態、および前記第２の電力変換装置に対応する第２の太陽電池モジュールの発電状態を、この順に切り替えて表示する、
    　請求項１に記載の状態表示システム。     In response to receiving the operation by the operation unit, the display unit operates in the first power conversion device included in the plurality of solar cell modules, and corresponds to the first power conversion device. The power generation state of the solar cell module, the operation state of the second power conversion device included in the plurality of solar cell modules, and the power generation state of the second solar cell module corresponding to the second power conversion device are in this order. Switch to display,
    The status display system according to claim 1.
  5. 　前記表示部は、前記操作部により操作を受け付けたことに応じて、前記複数の太陽電池モジュールに含まれる太陽電池モジュールの発電状態と、前記太陽電池モジュールに接続された電力変換装置の動作状態との組を、組ごとに順に切り替えて表示する、
    　請求項１に記載の状態表示システム。     The display unit, in response to receiving an operation by the operation unit, a power generation state of a solar cell module included in the plurality of solar cell modules, and an operation state of a power conversion device connected to the solar cell module The set of
    The status display system according to claim 1.
  6. 　前記表示部は、前記操作部により操作を受け付けたことに応じて、前記複数の太陽電池モジュールに接続された複数の電力変換装置の出力電力の瞬時値と、前記複数の電力変換装置の出力電力の所定時間における積算値とを、いずれか一方向に、あるいは双方向に切り替えて表示する、
    　請求項１に記載の状態表示システム。     In response to receiving an operation by the operation unit, the display unit outputs an instantaneous value of output power of the plurality of power conversion devices connected to the plurality of solar cell modules and output power of the plurality of power conversion devices. Display the integrated value for a predetermined time in either one direction or bidirectionally,
    The status display system according to claim 1.
  7. 　前記表示部は、前記操作部により操作を受け付けたことに応じて、複数の太陽電池モジュールの発電電力の瞬時値と、前記複数の電力変換装置の発電電力の積算値とを、いずれか一方向に、あるいは双方向に切り替えて表示する、
    　請求項１に記載の状態表示システム。     In response to the operation being accepted by the operation unit, the display unit displays the instantaneous value of the generated power of the plurality of solar cell modules and the integrated value of the generated power of the plurality of power conversion devices in any one direction. Or switch to bi-directional display
    The status display system according to claim 1.
  8. 　前記表示部は、前記太陽電池モジュールおよび前記電力変換装置と電力系統との連系状態を、前記太陽電池モジュールおよび前記電力変換装置の組ごとに切り替えて表示する、
    　請求項１に記載の状態表示システム。     The display unit displays the connection state between the solar cell module and the power conversion device and a power system by switching the set of the solar cell module and the power conversion device.
    The status display system according to claim 1.
  9. 　前記表示部は、前記太陽電池モジュールごとに、対応する前記電力変換装置の出力指令、前記太陽電池モジュールの発電状態、および前記電力変換装置の動作状態を一覧表示する、
    　請求項１に記載の状態表示システム。     The display unit displays, for each solar cell module, a list of output commands of the corresponding power conversion device, a power generation state of the solar cell module, and an operation state of the power conversion device.
    The status display system according to claim 1.
  10. 　複数の太陽電池モジュールに対応して設けられ、前記太陽電池モジュールから供給された直流電力を交流電力に変換する複数の電力変換装置を備える太陽光発電システムの状態表示方法であって、
    　前記複数の電力変換装置が、前記太陽電池モジュールの発電状態および前記電力変換装置の動作状態を通信装置に送信するステップと、
    　前記通信装置が、前記複数の電力変換装置によりそれぞれ送信された前記太陽電池モジュールの発電状態および前記電力変換装置の動作状態を受信するステップと、
    　受信された前記太陽電池モジュールの発電状態および前記電力変換装置の動作状態に基づく情報を、操作部により操作を受け付けたことに応じて内容を切り替えて表示するステップと、
    　を有する状態表示方法。     A state display method for a photovoltaic power generation system provided with a plurality of power conversion devices that are provided corresponding to a plurality of solar cell modules and convert DC power supplied from the solar cell modules into AC power,
    The plurality of power conversion devices transmitting a power generation state of the solar cell module and an operation state of the power conversion device to a communication device;
    The communication device receives the power generation state of the solar cell module and the operation state of the power conversion device respectively transmitted by the plurality of power conversion devices;
    The information based on the received power generation state of the solar cell module and the operation state of the power conversion device is displayed by switching the content according to the operation received by the operation unit;
    A state display method.
  11. 　複数の太陽電池モジュールに対応して設けられ、前記太陽電池モジュールから供給された直流電力を交流電力に変換する複数の電力変換装置によりそれぞれ送信された前記太陽電池モジュールの発電状態および前記電力変換装置の動作状態を受信する受信部と、
    　操作を受け付ける操作部と、
    　前記受信部により受信された前記太陽電池モジュールの発電状態および前記電力変換装置の動作状態に基づく情報を、前記操作部により操作を受け付けたことに応じて内容を切り替えて表示する表示部と、
    　を備える状態表示装置。     The power generation state of the solar cell module and the power conversion device respectively provided by a plurality of power conversion devices provided corresponding to the plurality of solar cell modules and converting DC power supplied from the solar cell modules into AC power A receiving unit for receiving the operating state of
    An operation unit for receiving an operation;
    A display unit that displays information based on the power generation state of the solar cell module and the operation state of the power conversion device received by the reception unit by switching contents according to the operation received by the operation unit;
    A state display device comprising:
PCT/JP2015/068243 2015-06-24 2015-06-24 Status display system, status display method, and status display device WO2016208007A1 (en)

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JP2006020390A (en) * 2004-06-30 2006-01-19 Sharp Corp Power conditioner
WO2006075371A1 (en) * 2005-01-13 2006-07-20 Mitsubishi Denki Kabushiki Kaisha Power conditioner, and power generating system
JP2013207862A (en) * 2012-03-27 2013-10-07 Sharp Corp Power generation system, and power conditioner and output suppression management device used therefor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006020390A (en) * 2004-06-30 2006-01-19 Sharp Corp Power conditioner
WO2006075371A1 (en) * 2005-01-13 2006-07-20 Mitsubishi Denki Kabushiki Kaisha Power conditioner, and power generating system
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