本論文旨在探討再生能源於孤島系統低頻卸載之影響，先利用風力發電實績，再經由案例比較分析，綜整改善低頻卸載影響成效，找出最適當儲能設備及交直流轉換器容量。首先，以民國100年、101年及102年離島風力發電實績，評估每天1H、2H、6H、12H及24H儲能容量大小與充、放電功率大小。利用上述約900多天之資料，以高斯分佈分析其出現次數、大小及累進機率等因素。其次，利用孤島系統每年售電量決定較具經濟效益之電池儲能上述儲能及雙向交直流轉換器容量。最後，考量經濟效益分析四個案例，利用PSS/E軟體分析找出電池儲能設備及雙向交直流轉換器最佳容量。

This is a thesis on the effect of under-frequency load shedding with renewable energy for isolated systems. Based on wind energy operation and analyzing some cases, we can integrate those which improve under-frequency influence in order to find the appropriate storage and AC-DC inverter capacities. First, use the wind power generation data for isolated systems in 2011, 2012, and 2013 to estimate the storage and inverter capacities for 1hr, 2hrs, 6hrs, 12hrs, and 24hrs daily. With the above data for about 900 days, we use Gaussian distribution to analyze the frequencies, the sizes, the accumulated probabilities, and other factors. Second, use the annual electricity sales of isolated systems to decide more economic capacities for these battery storage energy and inverter. Finally, consider the economic analysis of the four cases with the PSS/E software analysis to determine the optimal capacity for battery energy storage devices and inverter.

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