Implementation of Maximum Power Point Tracking Controller for Photovoltaic Systems

In order to increase the output overall conversion efficiency of the photovoltaic(PV) arrays it is used maximum power point tracker (MPPT) control to increase the PV arrays output power. The approach uses a novel controlling scheme to combine perturbation and observation (P&O) method together with three-point weighting comparison (TPWC) method for tracking maximum power points of PV arrays. The advantage of this approach is that it is a simple algorithm conducting on a microprocessor without redundant circuit components and thus the maximum power point of the PV systems will be obtained quickly and stably. According to the practical experiment, the system will produce fast and effective tracking results.

關鍵字

photovoltaic arrays ； maximum power point tracker ； perturbation and observation ； three-point weighting comparison

並列摘要

使太陽電池模組發揮最大輸出功率使其提高整體光電轉換效率，研製新型最大功率追蹤控制器。本文結合擾動觀測法與三點加權比較法的優點，提出一種新的控制方法使太陽電池陣列追蹤最大功率。由於本研究所提出的新型最大功率追蹤控制器沒有冗餘的電路組件在微處理器上，因此可以使演算法簡單化，而讓太陽電池系統快速穩定的得到最大功率輸出。根據實驗結果發現，本文所提出的控制器能產生快速有效的追踪結果。

並列關鍵字

太陽電池；最大功率追踪；擾動和觀察法；三點加權比較法

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