POWER SYSTEM

To provide a power system capable of outputting AC power using AC battery string and DC battery string with an appropriate method depending on the situation.SOLUTION: A power system 1 that outputs AC power to a power supply target (wire PGL) includes: a first power circuit 2 that includes a DC batte...

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Main Authors KIMURA KENJI, IZUMI JUNTA
Format Patent
LanguageEnglish
Japanese
Published 08.03.2023
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Abstract To provide a power system capable of outputting AC power using AC battery string and DC battery string with an appropriate method depending on the situation.SOLUTION: A power system 1 that outputs AC power to a power supply target (wire PGL) includes: a first power circuit 2 that includes a DC battery string for DC power and an inverter (DC/AC conversion circuit); a second power circuit 3 that includes an AC battery string for AC power; and a GCU 100 (control unit). The GCU 100 starts supplying the power to the power supply target in a first mode (charge/discharge mode using only AC battery string), and when the supply current exceeds a first threshold, the GCU 100 switches the charge/discharge mode to execute the power supply to the power supply target in a second mode (charge/discharge mode using the AC battery string and the DC battery string).SELECTED DRAWING: Figure 1 【課題】AC電池ストリングとDC電池ストリングとを用いて、状況に応じて適切な方式で交流電力を出力することができる電源システムを提供する。【解決手段】給電対象(電線PGL)へ交流電力を出力する電源システム1が、直流電力用のDC電池ストリング及びインバータ(DC/AC変換回路)を備える第1電源回路2と、交流電力用のAC電池ストリングを備える第2電源回路3と、GCU100(制御装置)とを備える。GCU100は、第1モード(AC電池ストリングのみを用いた充放電モード)で給電対象に対する給電を開始し、給電電流が第1閾値を超えると、GCU100は、充放電モードを切り替え、第2モード(AC電池ストリング及びDC電池ストリングを用いた充放電モード)で給電対象に対する給電を実行する。【選択図】図1
AbstractList To provide a power system capable of outputting AC power using AC battery string and DC battery string with an appropriate method depending on the situation.SOLUTION: A power system 1 that outputs AC power to a power supply target (wire PGL) includes: a first power circuit 2 that includes a DC battery string for DC power and an inverter (DC/AC conversion circuit); a second power circuit 3 that includes an AC battery string for AC power; and a GCU 100 (control unit). The GCU 100 starts supplying the power to the power supply target in a first mode (charge/discharge mode using only AC battery string), and when the supply current exceeds a first threshold, the GCU 100 switches the charge/discharge mode to execute the power supply to the power supply target in a second mode (charge/discharge mode using the AC battery string and the DC battery string).SELECTED DRAWING: Figure 1 【課題】AC電池ストリングとDC電池ストリングとを用いて、状況に応じて適切な方式で交流電力を出力することができる電源システムを提供する。【解決手段】給電対象(電線PGL)へ交流電力を出力する電源システム1が、直流電力用のDC電池ストリング及びインバータ(DC/AC変換回路)を備える第1電源回路2と、交流電力用のAC電池ストリングを備える第2電源回路3と、GCU100(制御装置)とを備える。GCU100は、第1モード(AC電池ストリングのみを用いた充放電モード)で給電対象に対する給電を開始し、給電電流が第1閾値を超えると、GCU100は、充放電モードを切り替え、第2モード(AC電池ストリング及びDC電池ストリングを用いた充放電モード)で給電対象に対する給電を実行する。【選択図】図1
Author IZUMI JUNTA
KIMURA KENJI
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Snippet To provide a power system capable of outputting AC power using AC battery string and DC battery string with an appropriate method depending on the...
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SubjectTerms CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
SYSTEMS FOR STORING ELECTRIC ENERGY
Title POWER SYSTEM
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