能源短缺的議題 近年於國際上日益發酵，作為生活中不可或缺的一部分，在煤礦、石油等石化燃料逐漸供不應求，更伴隨 全球暖化與空氣汙染等環境問題，各國開始對再生能源投入開發及研究。
再生能源與石化燃料不同，發電量牽涉到天氣與環境因素，不但無法根據負載量自由調整發電量，還會因為外部因素的不穩定導致發電量有很大的波動，造成供電及用電無法匹配，以至於電網穩定度下降。 這是儲能系統就能有效的解決再生能源的缺點，可以利用儲能系統將能量存儲及釋放來調整不穩定的電網，若頻率過高時，表示供電過剩，就利用儲能系統將多餘的電力儲存起來，並在供電量不足、頻率過低的時候，將儲存的能量釋放出來，達到自動調頻的效果，以此達到穩定電網的目的。而儲能系統設計時上需要考慮到該系統併聯到電力系統運轉時對系統產生的影響，故必須進行系統衝擊分析，確保併網運作時的穩定性。此外，在儲能案場的建置上也必須按照系統衝擊分析的結果來對案場進行機電規劃，確保儲能系統本身的運轉能夠安全無虞。
本研究針對台電公司提出的調頻輔助服務進行研究，旨在設計一套併網型儲能案場來進行輔助服務。其中包含兩大部分，第一部分為儲能系統的系統衝擊分析，針對系統進行電力潮流、故障電流檢討及保護協調設計等分析；第二部分為儲能案場的機電規劃 ，藉由系統衝擊分析結果進行機電規劃，設計整體儲能系統架構，建立一套完整的儲能系統與儲能案場建置方案。

The issue of energy shortage has increasingly gained attention internationally in recent years. As an indispensable part of our lives, traditional fossil fuels such as coal and oil are becoming insufficient to meet the growing demand. Moreover, these fuels contribute to global warming and air pollution, posing significant environmental challenges. As a result, countries around the world have started investing in the development and research of renewable energy sources.
Renewable energy differs from fossil fuels in that its power generation is influenced by weather and environmental factors. Unlike conventional power plants, renewable energy sources cannot adjust their output freely based on the load demand. They are also subject to significant fluctuations in power generation due to external instabilities. This mismatch between supply and demand leads to a decrease in grid stability. This is where energy storage systems come in as an effective solution to address the shortcomings of renewable energy. Energy storage systems can store and release energy to stabilize the unreliable grid. When there is an excess supply of electricity and the frequency is too high, the surplus power can be stored in the energy storage system. On the other hand, when there is insufficient supply and the frequency is too low, the stored energy can be released to balance the grid and maintain frequency stability. Thus, energy storage systems facilitate automatic frequency regulation and contribute to stabilizing the power grid. The design of energy storage systems needs to consider the impact on the power system when the system is connected to the grid. System impact analysis is conducted to ensure the stability of grid operation during integration. Additionally, the construction of energy storage facilities must follow the results of system impact analysis in terms of electromechanical design to ensure the safe and reliable operation of the energy storage system.
This study focuses on the research and design of a grid-connected energy storage facility to provide frequency regulation ancillary services, specifically for Taipower. It consists of two main parts: The first part is system impact analysis of the energy storage system, this involves analyzing the power flow, fault currents, and protection coordination of the system. The aim is to assess the impact of integrating the energy storage system into the power grid and ensure the safe and reliable operation of the overall system. The second part, electromechanical design of the energy storage facility, based on the results of the system impact analysis, the electromechanical design of the energy storage facility is conducted. This includes designing the overall architecture of the energy storage system and establishing a comprehensive plan for the construction of the energy storage facility. The ultimate goal of this research is to design a grid-connected energy storage facility that can provide effective ancillary services, specifically frequency regulation support to Taipower.

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