本論文提出植基於一種正前饋控制(positive feed-forward control, PFFC)之最大功率獲取的分散式降壓轉換系統。由於各電壓源係非理想電壓源，其輸出電壓準位會隨著輸出電流準位改變而變動。且具不同電器特性之各輸入電壓源亦會有不同的功率額定值。然而，採用傳統負回饋控制機制，功率模組不能限制其之最大輸入功率在相對應電壓源的額定輸出功率值內。因此，所提出之正前饋控制機制能夠使各功率模組具有最大輸入功率獲取功能。並且，將正前饋控制結合平均電流控制(average current-mode control, ACMC)架構能夠確保諸功率模組之穩定度。
最後，由SIMPLIS®電路模擬與實驗結果證明本論文所提出之正前饋控制電
路，確能使功率模組具最大功率獲取功能。

This thesis presents the positive feed-forward control (PFFC) scheme for the distributed buck conversion system with the multiple voltage sources. Since the employed voltage sources are non-ideal, the output voltage level of the individual voltage source varies with the output current of the individual voltage source. Moreover, the employed voltage sources with the different electrical characteristics have different power ratings.
With the use of the conventional negative-feedback control (NFBC) schemes, the maximum input power of the individual power module cannot be limited at the output power rating of the corresponding voltage source. Therefore, the proposed PFFC scheme is used to ensure the maximum power harvesting function for the individual power module. Furthermore, the average current-mode control (ACMC) associated with PFFC is able to ensure the stability for the power converter including the input filter.
Finally, the SIMPLIS® simulation and experimental results show that the paralleled buck power module system achieves the maximum power harvesting function.

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