| Summary: | 碩士 === 國立成功大學 === 電機工程學系碩博士班 === 98 === 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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