以電能儲存裝置改善船舶燃料電池電力系統動態響應

Dynamic Response Improvement in Fuel Cell Based Ship Electric Power Systems Using Energy Storage Device

Applications of fuel cells (FCs) to shipboards have been investigated by many countries worldwide in recent years due to their characteristics of low exhaust emission, high power generation efficiency, low vibration and low noise. Dynamic response is a problem when FCs are installed in ships as power sources because of their electrochemistry characteristics. To make system operation more reliably and stably, a hybrid FCs/energy storage devices ship electric power system is proposed in this paper. Proton exchange membrane fuel cells (PEMFCs) are considered as the power source and a PEMFCs' dynamic behavior based automatic generation control (AGC) model of the ship electric power system is derived. Dynamic responses of the system under different load operating situations are simulated to ensure the performance of the proposed model. Sensitivity analysis is also performed to reduce the effect of input parameter on analysis results. 因燃料電池真有低廢氣排放量、高發電效率、低振動、低噪音等優點，近來許多國家積極研究此種能源於船舶電源的應用。然而，燃料電池屬於電化學裝置，安裝於船舶上，動態響應為系統運轉主要問題之一。為使系統運轉更加穩定可靠，本文提出以電能儲存裝置來改善船舶燃料電池電力系統動態響應。本文考慮以質子交換膜燃料電池作為船上電源裝置，推導出以該燃料電池動態模型為基礎之系統自動發電控制模式，並模擬幾種不同的負載操作狀況下系統的動態響應，以確認改善模式之執行效能。最後，本文亦執行敏感度分析以減少輸入參數對模擬結果之影響。