摘要
台電調度控制自動化工程，依電力調度作業劃分為中央調度控制中心（CDCC），區域調度控制中心（ADCC），及配電調度控制中心系統（DDCC）等三個層級，負責345kV、161/69kV、22/11kV系統的監控與運轉，自動化工程係以調度中心之電腦系統設備為核心，以變電所為末端站，在變電所內裝設資訊末端設備（RTU )，藉通訊線路與調度中心電腦系統連線，負責提供變電所內設備資訊及接受操作指令，達到自動化監視控制與資料收集( SCADA )功能。 在電力調度自動化工程中，RTU負責蒐集變電所內各種設備的狀態及類比量，再經由不同的通訊設備傳回給位於調度控制中心的電腦主機，同時並接收電腦主機的控制訊號，對變電所的各項設備進行控制操作。因此為便於彼此間的傳送與接收，RTU與電腦主機間就須訂定一套規則來共同遵守，這就是所謂的通訊協定( Protocol )。 故新SCADA系統需考慮未來如何提升，變電所與主站間之資料傳輸速度及通訊可靠度，此為本論文重點。
關鍵字
嘉南地區並列摘要
The task of automatic electricity dispatch for Taiwan Power Company includes Center Dispatch Control Center (CDCC)、Area Dispatch Control Center (ADCC) and Distribution Dispatch Control Center (DDCC) three centers which monitor and control the system operation of 345kV、161kV/69kV、22kV/11kV voltage levels. Computer server of Dispatch and Control Center plays the key role of automatic system automations. Remote Terminal Units (RTU) are installed in substations which communicate with the computer server of Dispatch and Control Center by computer network. The function of RTU includes gathering system’s data and performing the remote instructions that received from control centers. For automatic electricity dispatches engineering, RTU acquires the states and analog data in the substation then transmitting the data to the main computer of Dispatch and Control Center. At the same time, RTU will perform the automatic operations according to the control signals from control centers. For the purpose of transmitting and receiving data, the communication Protocol should be developed for RTU and main computer. In this thesis, improving the performance of data transmission speed and communication reliability for new SCADA system is discussed.