CONTROL CIRCUIT FOR CONTROLLING POWER CONVERTER CIRCUIT, POWER CONVERSION SYSTEM INCLUDING THE CONTROL CIRCUIT, AND METHOD
PROBLEM TO BE SOLVED: To provide an inverter device for a photovoltaic power generation capable of participating in a cooperative operation to suppress system frequency fluctuation even when a system frequency decreases.SOLUTION: In a control circuit 3 for controlling an inverter circuit 2 which con...
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11.06.2015
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Abstract | PROBLEM TO BE SOLVED: To provide an inverter device for a photovoltaic power generation capable of participating in a cooperative operation to suppress system frequency fluctuation even when a system frequency decreases.SOLUTION: In a control circuit 3 for controlling an inverter circuit 2 which converts DC power outputted from a solar battery 1, DC power outputted by the solar battery 1 is controlled to be a power value which is not a maximum value. When the system frequency decreases, a monitoring device C increases an adjustment value to be inputted into the control circuit 3 in order to increase output active power of an inverter device A. The solar battery 1 can increases output because output power is suppressed to be the power value which is not the maximum value (e.g., the power value of about 90% of the maximum value). Therefore, the inverter device A can increase active power to be outputted, so that it is possible to participate in a cooperative operation to suppress a system frequency fluctuation even when the system frequency decreases.
【課題】系統周波数が下降した場合でも、系統周波数変動を抑制するための協調運転に参加することができる、太陽光発電用のインバータ装置を提供する。【解決手段】太陽電池1が出力する直流電力を変換するインバータ回路2を制御する制御回路3において、太陽電池1が出力する直流電力を、最大値ではない電力値に制御するようにした。系統周波数が下降した場合、監視装置Cは、インバータ装置Aの出力有効電力を増加させるために、制御回路3に入力する調整値を増加する。太陽電池1は、出力電力を最大値ではない電力値(例えば、9割程度の電力値)に抑えられているので、出力を増加させることができる。これにより、インバータ装置Aは、出力する有効電力を増加させることができるので、系統周波数が下降した場合でも、系統周波数変動を抑制するための協調運転に参加することができる。【選択図】図1 |
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AbstractList | PROBLEM TO BE SOLVED: To provide an inverter device for a photovoltaic power generation capable of participating in a cooperative operation to suppress system frequency fluctuation even when a system frequency decreases.SOLUTION: In a control circuit 3 for controlling an inverter circuit 2 which converts DC power outputted from a solar battery 1, DC power outputted by the solar battery 1 is controlled to be a power value which is not a maximum value. When the system frequency decreases, a monitoring device C increases an adjustment value to be inputted into the control circuit 3 in order to increase output active power of an inverter device A. The solar battery 1 can increases output because output power is suppressed to be the power value which is not the maximum value (e.g., the power value of about 90% of the maximum value). Therefore, the inverter device A can increase active power to be outputted, so that it is possible to participate in a cooperative operation to suppress a system frequency fluctuation even when the system frequency decreases.
【課題】系統周波数が下降した場合でも、系統周波数変動を抑制するための協調運転に参加することができる、太陽光発電用のインバータ装置を提供する。【解決手段】太陽電池1が出力する直流電力を変換するインバータ回路2を制御する制御回路3において、太陽電池1が出力する直流電力を、最大値ではない電力値に制御するようにした。系統周波数が下降した場合、監視装置Cは、インバータ装置Aの出力有効電力を増加させるために、制御回路3に入力する調整値を増加する。太陽電池1は、出力電力を最大値ではない電力値(例えば、9割程度の電力値)に抑えられているので、出力を増加させることができる。これにより、インバータ装置Aは、出力する有効電力を増加させることができるので、系統周波数が下降した場合でも、系統周波数変動を抑制するための協調運転に参加することができる。【選択図】図1 |
Author | OHORI AKIHIRO HATTORI MASAYUKI |
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DocumentTitleAlternate | 電力変換回路を制御する制御回路、当該制御回路を備えた電力変換装置、および、方法 |
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Snippet | PROBLEM TO BE SOLVED: To provide an inverter device for a photovoltaic power generation capable of participating in a cooperative operation to suppress system... |
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SubjectTerms | CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONTROLLING CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION PHYSICS REGULATING SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES SYSTEMS FOR STORING ELECTRIC ENERGY |
Title | CONTROL CIRCUIT FOR CONTROLLING POWER CONVERTER CIRCUIT, POWER CONVERSION SYSTEM INCLUDING THE CONTROL CIRCUIT, AND METHOD |
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