離岸風場模擬整合風場層級控制之研究

Abstract

本研究旨在發展離岸風場之風場控制與功率輸出模擬，結合風場模型、尾流模型、風機機組系統、風機控制系統以及風場控制系統。以丹麥奧爾堡大學(Aalborg University)在歐盟風能計畫(Aeolus FP7)中發展出的 SimWindFarm 風場模擬軟體，結合 MATLAB/SIMULINK 進行完整的風場全系統動態分析與設計。模擬使用美國國家再生能源實驗室(NREL, National Renewable Energy Laboratory)所開發的 5MW 風機模型以及丹麥科技大學(Technical University of Denmark, DTU)發展的 10MW 風機為原型風機。風場架構以固定風向及平均風速為基準，風場高度固定在輪穀(hub)高度，以二維的矩陣頻譜方式建立其風場模型和風場風機群的尾流效應與數學模型，模擬固定的風場布局(layout)之下，研究風場系統整體產出的輸出功率。並於不同的風況輸入下，整合風機控制以及風場控制的策略與理論，實現整體離岸風場全系統的輸出功率變化與穩定之模擬分析。

This study aims to develop wind farm control and power output simulations for offshore wind farm systems, including wind farm models, wake models, wind turbine systems, wind turbine control systems and wind farm control systems. The SimWindFarm wind farm simulation software developed by Aalborg University in Denmark under the European Wind Energy Project (Aeolus FP7) is used to complete dynamic analysis and design of the wind field systems in MATLAB/SIMULINK. The 5MW wind turbine model developed by NREL (National Renewable Energy Laboratory) and the 10MW wind turbine developed by the Technical University of Denmark (DTU) are used for simulated prototype of wind turbine. The model of the wind field is based on the fixed wind direction and average wind speed. The height of the wind field is fixed at the hub height. The wind field model, and the wake effect and mathematical model of the wind turbines group are established by two-dimensional matrix. Simulation and research of the output power produced by the overall wind farm systems are performed under the fixed wind field layout. Finally, under input of different wind conditions, the strategy and theory of wind turbine control and wind farm control are integrated to realize the simulation analysis of the power variation and stability for the overall offshore wind farm systems.