適用於不同類型輸入電源之電池充電器研製

本論文提出適用於不同類型輸入電源之電池充電器。此充電器可適用於不同類型之電源，且針對不同類型輸入電源具有因應之功能。例如使用太陽能電池作為輸入電源時，擁有追蹤最大功率點之功能；而使用交流市電充電時，擁有功率因數校正功能；使用直流電時，充電器也可順利運作。另外，所提之充電器也具定電流切換定電壓充電之功能，避免電池以過大之電流或電壓進行充電。此外，當負載端無接上電池，只有電阻性負載時，此充電器將自動成為電源轉換器，能夠提供負載穩定的電壓來源。為了實現此充電器，本論文提出了一種可適用於不同類型輸入電源之演算法，可針對不同類型輸入電源達成所需之功能。此外，為了搭配此演算法，本論文另外提出一種新型之電路架構，此電路架構將升降壓式電源轉換器(Buck-Boost Converter)以及隔離型Zeta電源轉換器融合，共用一組功率開關，形成一個單級之Buck-Boost-Zeta轉換器(Buck-Boost-Zeta Converter, BBZC)，並分析其操作模式與小訊號模型。最後，本論文將此電路架構配合演算法，模擬並實作一臺65W可適用不同類型輸入電源之電池充電器，以驗證本論文所提出的概念與方法。

關鍵字

充電器；最大功率追蹤；功率因數校正；定電壓切換定電流充電

並列摘要

A battery charger for different input power sources (DIPS charger) is proposed in this thesis. This charger can be applied to various input sources, such as an AC source, a PV source, and a DC source, and can perform corresponding functions. For example, when connected with an AC power source, the proposed charger perform the power factor correction (PFC). While connecting with a PV panel, it can achieve the maximum power point tracking (MPPT) feature. Besides, it is also capable of connecting with a DC power source. The proposed charger also has the conventional charging control, constant current mode and constant voltage mode, to protect the Li-ion battery from excessive charging current or voltage. Moreover, the proposed charger can regulate the output voltage when its output load is not a battery but a resistor only. To realize these desired functions for the charger, this thesis proposes a different input power sources (DIPS) algorithm to achieve those corresponding functions. In this thesis, the control flow chart of the proposed DIPS algorithm for different input power sources is presented. On the other hand, a novel single-stage Buck-Boost-Zeta converter (BBZC), which is the fusion of a buck–boost converter and an isolated Zeta converter is proposed to carry out the proposed DIPS algorithm. The operating principle of the BBZC is explained, and its small signal transfer function is derived. Computer simulations and experimental results of a 65W BBZC as a battery charger are presented to verify the concept of the proposed DIPS charger.

並列關鍵字

charger ； MPPT ； PFC ； CC/CV charging mode ； DIPS ； BBZC

參考文獻

[31] H. L. Cheng, C. A. Cheng and C. S. Chang, “A novel single-stage HPF AC/DC converter with integrated buck-boost and flyback converters,” Next-Generation Electronics (ISNE), 2013 IEEE International Symposium on, Kaohsiung, 2013, pp. 146-149.

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適用於不同類型輸入電源之電池充電器研製

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