本文以獨立型太陽能LED照明系統之架構設計與研製為研究目標,系統架構包含:太陽光電池、大功率發光二極體(High Power-Light Emitting Diodes, HP-¬LED)模組、雙向Buck-Boost直流轉換器、鉛酸電池(Lead-Acid Battery)與微控制器所建構而成。 近年來由於全球工業的高度發展,造成環境污染與能源短缺的問題日益嚴重,因此開發再生能源勢在必行,而以太陽能頗受各界重視的再生能源之ㄧ。大功率發光二極體為未來綠色照明設備的發展趨勢,其具有低耗電、壽命長、反應快及體積小等優點,為本系統發光源。系統主電路為雙向Buck-Boost直流轉換器,並以微控制器(PIC18F4431)來管理和控制,使電路結合充電器和放電器功能,並具有擾動觀察法的最大功率點追蹤控制、脈衝式充電控制及大功率發光二極體驅動電路(放電器)控制等功能。 最後設計與研製獨立型太陽能LED照明系統架構,經由電腦模擬和實驗的量測結果,以驗證其可行性。
In this thesis, the design and implementation of a stand-alone solar power LED lighting system are the study objectives. The system architecture includes solar cells, high power-light emitting diodes(HP-LED) modules, bi-directional buck-boost DC converters, lead-acid battery and a single-chip microcontroller (PIC). In recent years, due to the high degree of global industrialization, environmental pollution and energy shortages, therefore it is imperative to develop renewable energy. In a variety of renewable energys, solar energy is one of the most attractive selections. High power-light emitting diode lighting equipment for the future development is the trend, which has several advantages, such as low power loss, long life, fast response and small size. This research includes both of solar power and LED to design a lighting system. It’s main circuit is a bi-directional buck-boost DC converter, combining a single-chip microcontroller (PIC18F4431) to manage and control both of charging and discharging functions. The system has maximum power point tracking control, pulse charging control and high power-light emitting diodes driving control functions. Finally, through computer simulation and experimental measurement, this design has been verified.