抄録
Fuel cell as one of co-generation system and battery energy storage system can be used as power sources in an isolated power system in complex housing at blackout. This paper reports study results on this isolated power system. Simulation models are developed and the results are compared with measured values of active power, reactive power, and voltage. Good agreement between them is obtained. In this analysis it is found there is stability limit in such inverter power source operation. The stability limit is expressed by a short circuit power ratio that is similar expression in the conventional ac system. A nonlinear load switching is also studied to show stable operation furthermore.