儲能系統主要由下述三個部份組成，主要有電力調節系統(power conversion system, PCS)、電池管理系統(battery management system, BMS)與能源管理系統(energy management system, EMS)。其中 EMS 相當於儲能系統的核心，需要決定系統何時充電與放電，以及監控設施內的消防系統、門禁系統與環境溫溼度等資訊，設備與 EMS 間須保持良好的資料傳輸。而在電力系統中，接地系統具有穩定電位、洩放靜電荷、雷擊電流洩放路徑、設備外殼接地可防止感電與提供參考電位等功能，若儲能設施的接地系統設計不良，會使 PCS 進行電能轉換，操作併網開關時，產生額外的雜訊，對通訊線路造成電磁干擾，使設備間的通訊中斷，造成儲能系統暫時失能。
本論文分析儲能系統在不同接地方式下投入與切離電網時，接地點上的暫態電壓變化。並參考 IEC 60364 標準中的 TT、TN、IT 等接地方式，分析不同的操作情境，包含儲能系統併入電網、儲能系統切離電網時的開關操作，與不同的接地阻抗變化。本論文以 EMTPATPDraw 建立儲能系統模型，模擬各情境後，提出地電位變動較低的接地方式。

The energy storage system is mainly composed of the following three parts, including the power conversion system (PCS), battery management system (BMS), and energy management system (EMS). Among them, EMS is the core of the energy storage system. EMS needs to decide when to charge and discharge, and monitor information such as the fire protection system, access control system, and ambient temperature and humidity in the facility. Good data transmission must be maintained between the equipment and the EMS. In the power system, the grounding system has the functions of stabilizing the potential, discharging static charges, lightning current discharge path, grounding the equipment shell to prevent induction, providing reference potential. If the grounding system of the energy storage facility is poorly designed, the noise generated by the PCS may cause electromagnetic interference to the communication line during the switching operation. In severe cases, the energy storage system will be temporarily disabled.
This thesis analyzes the transient voltage variation at the grounding point when the ESS is connected or disconnected from the grid under different grounding methods. Referring to the grounding methods such as TT, TN, and IT in IEC 60364 standard, and analyzes in different ground impedance. The energy storage system model is established with EMTPATPDraw. After simulating various scenarios, a grounding method with low ground potential variation is proposed.

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