由於電機電子產業之快速發展及設備用電品質之日趨重視，故為了受電穩定度之確保，常於負載端裝設電力調節設備，以維持負載兩端電壓，而其中動態電壓恢復器即常被應用於補償電壓驟降。基於此，本文即延伸應用建議提出備援型動態電壓恢復器系統，亦即可將多具動態電壓恢復器聯合使用，並共用一大電容所形成之直流鏈，故當有饋線發生電壓驟降時，不僅可由動態電壓恢復器使用直流鏈之能量進行補償，以維持負載兩端之電壓固定，且當緊急電量較為不足時，可協助發揮備援供電之能力，彼此互相支援，以更確保受電電壓之穩定度。為期確認本方法之可行性，本文已將所提方法經由不同測試情形予以模擬分析，期能輔以說明所提策略之參考價值。

With the fast development of electrical and electronics industry as well as an increasing concern about the level of power quality, electric power regulator devices are being widely employed to ensure the stability of supplying-power. Among these proposed devices, the dynamic voltage restorers are often applied to compensate the voltage drop. In view of this importance, the concept of redundant voltage dynamic restorers is suggested in this thesis which is constructed based on the integration of several dynamic voltage restorers to share a dc link composed of a large capacitor. Therefore, once the voltage scenario happens, not only the energy of dc link can be served to maintain a constant supply, the redundant restorer can be also added in time to exhibit the capability of backup power, hence better ensuring a higher voltage stability. In order to confirm the feasibility of the proposed method, it was tested through several simulated scenarios, by which the reference values are expected to better consolidate.

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