- 學位論文
以鍵結圖法進行切換式系統電路之模擬研究
Using Bond Graph for Simulating and Researching of Switching System
摘要
鍵結圖是對系統進行動態模擬的方法，以鍵及連結點等功能圖型符號之連結，來表示系統元件間能量的關係，以對系統進行特性的分析，此模擬法是利用能量的觀點，以巨觀的方式，找出在許多不同能量系統間運作的共同處，並使用類似等效電路元件的觀念來模擬及分析不同物理領域的動態系統。本論文以鍵結圖模擬方法來實際模擬切換式系統電路，採用鍵結圖法可保留原系統電路架構，且可直接應用建結圖將電路轉換成對應的元件與即時修改元件參數，因此，需修改系統架構或是元件參數，都可以有所依循，可改善傳統以電路理論進行分析動態系統後，系統架構已消失殆盡的缺點。 本論文利用鍵結圖中切換式接點的觀念進行對切換式系統電路進行模擬，這種觀念可以保證在電路切換的過程中，鍵結圖的因果關係可維持非時變的的狀態，在系統電路切換的期間，狀態向量與時間的維度也保持不變，進而可以在接點中，從一張圖同時顯示出所有可實行的系統模式。本論文已完成對切換式系統電路之模擬，包括鍵結圖的建模方法、模擬結果分析以及與傳統模擬方式之比較，透過模擬結果與模擬之後的架構來驗證鍵結圖在動態系統的特性分析與設計應用上是一種更好的工具。
並列摘要
Bond graph is a mean to perform dynamic simulation to a system. Using graphic notations such as bonds and junction to represent the relationships of energies of system objects, and analyze characteristics of the system. Using a macroscopic-scale to view energy, this method finds the commonalities between the operations of various energy systems; This thesis uses the bond graph simulation method to perform actual simulation on switching system circuits. The original system circuit structures are preserved, with the corresponding devices converted and device parameters altered simultaneously in the bond graph. Therefore, there is a basis for possible future changes in the system structures or device parameters, which is an improvement over the traditional approach of using circuit theories to perform dynamic system analysis, with which the original system structures are completely destroyed. Complete simulation process on switching system circuit has been completed, including the construction of bond graph, analysis of simulation results, and the comparison to traditional simulation methods. By analyzing simulation results and the post-simulation system structures, it is proven that bond graph is a better tool for analyzing dynamic system characteristics and designing such systems.