近年來，隨著電力系統容量不斷提升，發電機結構和運行方式日趨複雜，加上多電飛機發電設備之高可靠度、高功率密度與高效率等要求，使得發電機控制單元之性能要求亦趨提高。由於發電機控制單元對發電機乃至電力系統之安全穩定運行影響至大，加上其系統架構與控制策略之複雜度使得設計與製作難度隨之提高。故本論文之目標，係以探討數位發電機控制單元應用於20 kVA三級式同步發電機之系統性能與響應分析。
　　本論文利用數位控制器結合高可靠度之電能轉換架構於發電機輸出電壓與激磁電流控制，建立一套三級式同步發電機勵磁控制系統，並利用ANSYS / Twin Builder與ANSYS / Maxwell之磁電耦合模擬進行系統驗證分析。本論文亦製作一具三級式同步發電機控制單元，並結合發電機實測驗證設計與模擬結果。

In recent years, as the capacity of power systems has increased, the structure and operation of generators have become increasingly complex. In addition, due to the demands of high reliability, high power density and high efficiency of multi-powered aircraft generating equipment, the performance requirement of the control units of generators is also increasing. The generator control unit has a great impact on the safe and stable operation of the generator and the power system and the complexity of the system architecture and control strategy make the design and the manufacture even more difficult. The objective of this thesis is to investigate the system performance and response analysis of the digital generator control unit applied to a 20 kVA three-stage synchronous generator.
In this thesis, a three-stage synchronous generator excitation control system is built using a digital controller combined with a highly reliable power conversion architecture to control the output voltage and excitation current of the generator. Finally, the ANSYS / Twin Builder and ANSYS / Maxwell magneto-electric coupling simulations are used for system verification and analysis.

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