本論文係針對以雙饋式感應發電機所組成之離岸式風場與以永磁式同步發電機所組成之離岸式風場做整合後，透過統一功率潮流控制器連接至台電簡化系統之架構為研究目標，並比較此類混合離岸式風場採用統一功率潮流控制器做控制之特性與其在系統穩定度改善之效果。本論文於三相平衡系統下利用交直軸等效電路模型，分別建立以雙饋式感應發電機所組成之離岸式風場、以永磁式同步發電機所組成之離岸式風場以及統一功率潮流控制器等模型，並設計統一功率潮流控制器之輔助阻尼控制器。本論文於穩態特性方面，分析風速、海底電纜傳輸線長度與彰濱H負載變動等情況下對系統穩定度特性之影響。在暫態及動態模擬方面，完成了風速變動、轉矩干擾以及彰濱H匯流排發生三相短路故障等模擬結果。由穩態、動態及暫態之模擬結果分析得知，統一功率潮流控制器能夠有效地控制混合離岸式風場連接至台電簡化系統之功率潮流。此外，當統一功率潮流控制器在加入輔助阻尼控制器之後，更能有效改善台電簡化系統連接混合離岸式風場於不同運轉條件下之穩定度。

This thesis presents the analyzed results of power-flow control and stability improvement of the simplified Taipower System connected with an integrated doubly-fed induction generator (DFIG)-based offshore wind farm (OWF) and permanent-magnet synchronous generator (PMSG)-based OWF using a unified power flow controller (UPFC). The q-d axis equivalent-circuit model is used to establish the models of the studied DFIG-based OWF, the PMG-based OWF, and the UPFC under three-phase balanced loading conditions. Different types of supplementary damping controller of the proposed UPFC are designed. Steady-state characteristics of the studied system under different values of wind speed, transmission length, and loading of Jang-Bin H are examined. Dynamic results and transient simulations of the studied system subject to a wind-speed disturbance, a torque disturbance, and a three-phase fault at the Chang-Bin H are also carried out. It can be concluded from the simulation results that the proposed UPFC joined with the designed supplementary damping controllers is effective in controlling the power flow from OWFs to the simplified Taipower System and improving the stability of the simplified Taipower System connected with an integrated OWF under different operating conditions.

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