ELECTRIC POWER SYSTEM
To provide an electric power system that can satisfactorily follow the MPPT control of the output while suppressing sudden changes in the output of a fuel cell device.SOLUTION: An electric power system includes a power supply control device that supplies DC power from a DC link portion connected to...
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| Format: | Patent |
| Sprache: | eng ; jpn |
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| Zusammenfassung: | To provide an electric power system that can satisfactorily follow the MPPT control of the output while suppressing sudden changes in the output of a fuel cell device.SOLUTION: An electric power system includes a power supply control device that supplies DC power from a DC link portion connected to a fuel cell device via a converter device by MPPT control, a power consuming device, a switch that can connect and disconnect the DC link portion and the power consumption device, and a control device that controls the switch. The control device sets the current/voltage characteristics on the basis of the generated power of the fuel cell device S200, sets the target voltage of the DC link portion on the basis of the current/voltage characteristics and the output current output from the DC link portion to the power supply control device S230, S240, and performs MPPT cooperative control that controls the switch such that the voltage of the DC link portion becomes the target voltage S250.SELECTED DRAWING: Figure 3
【課題】燃料電池装置の出力の急変を抑制しつつ、出力をＭＰＰＴ制御に良好に追従が可能な電力システムを提供する。【解決手段】電力システムは、燃料電池装置にコンバータ装置を介して接続される直流リンク部の直流電力をＭＰＰＴ制御により給電する給電制御装置と、電力消費機器と、直流リンク部と電力消費機器との接続および接続解除が可能なスイッチと、スイッチを制御する制御装置と、を備える。制御装置は、燃料電池装置の発電電力に基づいて電流電圧特性を設定Ｓ２００し、電流電圧特性と直流リンク部から給電制御装置へ出力される出力電流とに基づいて直流リンク部の目標電圧を設定Ｓ２３０、Ｓ２４０し、直流リンク部の電圧が目標電圧となるようスイッチを制御するＭＰＰＴ協調制御Ｓ２５０を実行する。【選択図】図３ |
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