關鍵基礎設施為重要社會基礎功能所需之基礎建設，一個國家為了維持民生、經濟與政府等相關公私部門之合作運作而提供之基本設施與服務，而電力供應攸關民生、產業及經濟發展至鉅，近年來國內因核能議題、環保議題及燃煤發電機組退役等影響，在目前電力需求仍維持成長之趨勢下，電力供應仍年年吃緊，政府部門及電力公司均全力執行各相關措施，確保電力穩定供應。

電力供應穩定，不僅是民生必需，更攸關國家經濟發展與國家安全。電力系統對於我國重要半導體產業而言，是生產製造的中樞神經。一旦電力系統供電品質異常或發生故障，將會造成生產線的機台跳機，使生產流程中斷，且隨著復電時間的延長，時間與金錢的損失上也就愈來愈大。因此，半導體產業對於電力系統品質的好壞相當注重。

在我國能源產業轉型之際及配合世界環保潮流，台灣電力公司及民營電廠(IPP)對天然氣供應的質與量需求日殷，天然氣發電占比日益提高，而穩定而安全的天然氣供應更是至關重要的議題。

本研究以製程安全管理之概念，就天然氣控制系統導入失誤樹(FT)分析，藉由多層次之保護機制，於工業控制系統(ICS)之設備建立防呆機制，讓系統有容錯能力，以因應人為疏忽，強化控制系統安全防護，避免斷氣導致全國大停電事件不再重複發生，確保電力穩定供應，並大幅增進國家經濟發展。

Critical infrastructure is the infrastructure required for important social basic functions. The basic facilities and services provided by a country in order to maintain the cooperative operation of related public and private sectors such as the people's livelihood, the economy, and the government. Electricity supply is critical to people’s livelihood, industry, and economic development. In recent years, due to nuclear energy and environmental protection issues, and the decommissioning of coal-fired generating units in China, the current demand for electricity is still growing. Departments and power companies are fully implementing various related measures to ensure stable power supply.
Electric System is like the central nervous system of the high-tech industries. The production line may be interrupted due to malfunctions in the electrical system. However, as the power system recovery time increases, the cost of time and money becomes huge problems.
At the time of the transformation of my country’s energy industry and in line with the global environmental protection trend, Taiwan’s power companies and private power plants (IPP) are increasingly demanding the quality and quantity of natural gas supply. The proportion of natural gas power generation is increasing, and stable and safe natural gas supply is even more important.
Based on the concept of process safety management, this research introduces a fault tree (FT) analysis to the natural gas control system, and uses a multi-level protection mechanism to establish a foolproof mechanism in the industrial control system (ICS) equipment to make the system fault-tolerant. In response to human negligence, strengthen the safety protection of the control system to avoid the repeated occurrence of blackouts across the country caused by the outage, ensure the stable supply of electricity, and greatly enhance the country's economic development.

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