本論文研製一直接電流控制法(Deadbeat Control)之併聯電力系統換流器。此電路之主架構為全橋式換流器，利用直接電流控制法做為換流器控制方式，並配合預測控制，針對直接電流控制法內的開關責任週期計算所需要的電力系統電壓做預測；預測方式為外差法，而外差法的係數為對一電力系統電壓週期內做誤差電壓平方和的最小化，根據此係數分析誤差電壓，再加上一誤差電壓補償項來達到精準的電壓預測。本論文首先針對各類相關之換流器控制法做大略的介紹，再對所使用之換流器做動作原理敘述及穩態分析。最後，利用本論文所設計之直接電流控制法完成併聯電力系統之換流器雛型，其輸入電壓為250 V、輸出為併聯電力系統110 Vrms、輸出功率為550 W之電路雛型，以驗證理論之可行性。

In this thesis, a grid connected full-bridge inverter with deadbeat control is studied and implemented. Deadbeat and predict control are combined to solve the problem of delay effect caused by digital control. In order to predict the control voltage, the coefficient of extrapolation is derived by minimizing the sum of the square of error voltage in one cycle of power system. Moreover, by using a compensation item reduces the value of the error voltage to predict the power system voltage correctly. The operating principles of the proposed inverter are presented, and the steady-state analysis is also discussed in this thesis. Finally, a laboratory prototype with 250 V input voltage, 550 W output power and grid connected inverter is implemented to verify the theoretical analysis.

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