近年來風力發電的發展逐漸成長，隨著風力發電容量佔系統的比例增高，其功率波動勢必對系統產生衝擊。一般應用在風力發電之控制為最大功率追蹤，但風機功率隨著風速改變而變動，對系統穩定度影響甚大，若針對減緩功率波動實施功率平穩化，在低風速時風機可能會處於不穩定的情形。基於以上這些問題，本文建構出使用以永磁式同步發電機結合儲能系統之風能轉換系統。在風機執行最大功率追蹤的操作下，風機產生之功率變動由儲能器吸收，使得在風速變動時仍然使輸入電網的功率可保持穩定輸出，若風速為穩定中高風速下，此系統可不使用儲能系統達成實功控制。透過模擬可證實此控制架構下的功率輸出確實可實現風機或風電廠的調度與控制。

In recent years, wind power generation capacity has risen up gradually. When installed capacity of the wind power generation has high proportion in the grid system, the power fluctuation may impact the grid operation. The common control strategy for the wind power generation is the maximum power point tracking, which may cause the stability issue due to the variation of wind power. In order to alleviate power variation and realize the real power control, control strategies for Wind Energy Conversion System (WECS) are proposed. This thesis presents a model of PMSG-based wind energy conversion system which is equipped with energy storage system. As the WECS is operated under the maximum power point tracking, the storage system absorbs the power fluctuation from the wind. Meanwhile, the real power at grid side is still controllable when the wind speed changes. When the wind speeds are in the medium-high level, the WECS can even operate the grid side real power control without the storage system. Simulation results validate the control strategies of real power dispatch and control for the wind turbines and wind farms.

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