| 摘要 |
A fuel cell power plant ( 9 ) provides DC power to an inverter ( 12 ) which provides power to three-phase power lines ( 16 ) which are connectable to a power grid ( 18 ) by switches ( 17 ), and which are connected to a critical customer load ( 30 ). An energy storage device ( 40 ) provides DC power to a bidirectional DC/AC converter ( 36 ) which is connectable through switches ( 34 ) to said three-phase power lines or to said power grid. A diode ( 45 ) may passively provide fuel cell power plant energy directly to the energy storage device so as to charge it, or bypass the primary DC/AC inverter in the event that it fails. Lapses in power caused by the inverter shutting down due to perturbations on the grid are avoided by power supplied by the converter using energy from the energy storage device.
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