本論文提出一次變電所之電壓及虛功率控制方法，首先利用PSS/E軟體分析一次變電所在不同的負載模型下，電壓控制設備調整對靈敏度參數的影響。同時亦透過ZIP混合負載及考慮系統等效阻抗，使考慮的系統與實際變電所的靈敏度參數能更為相符。根據板橋P/S、中壢P/S實際量測數據，分析歸納出靈敏度參數資料庫，最後將資料庫建置於Visual Basic程式中進行靈敏度矩陣計算，並設計一個結合九區圖法之圖形化使用者介面(GUI)。透過此應用程式搭配九區圖控制策略表及綜合控制效果變化方向圖，可以提供調度人員在進行電壓控制設備調整前，能快速且有效的預測其控制效果。

This thesis proposes a voltage and reactive power control (VQC) method in the primary substation. Firstly, it uses PSS/E to analyze that the adjustment of voltage control devices will affect the sensitivity parameters in primary substation under different load models. The ZIP hybrid load model and the system equivalent impedance can make the sensitivity parameters of the considered system and actual substation match better. The measured data of voltage control in the Banciao P/S and the Jhongli P/S were analyzed as the database of sensitivity parameters. Finally, this database is used to build on the Visual Basic to calculate the sensitivity matrix and to design a graphical user interface (GUI) including nine-area diagram. Through this application, the control strategy of nine-area and the Q-V control pattern can provide dispatchers to predict its operating results quickly and effectively before making voltage adjustments.

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