高能效直流模塊式光伏發電系統性能評估:在住宅和建筑集成應用中，光伏發電系統易受局部陰影和光照條件不同引起的光伏組件電氣參數失配的影響，導致系統的能量轉化效率較低，甚至可能形成熱斑，損壞組件。為了提高光伏發電系統在陰影和失配條件下的能效，保護光伏模組，本文提出了一種基于并聯直流模塊的光伏發電系統結構，并與已有的串聯直流模塊和旁路直流模塊式光伏發電系統進行了比較分析，綜合評估了3 種高能效直流模塊式光伏發電系統的性能和特點。
Abstract: Photovoltaic power system for the residential and building integration application is sensitive to the mismatch
of electrical parameter due to the partial shadows and different illumination condition. As a result, the yield of the system
decreases remarkably, in severe cases, the hot-spot problem can arise and the photovoltaic modules can be irreversibly
damaged. In order to maximize the energy converter efficiency under the partial shadows and mismatch condition, a novel
photovoltaic power system based on paralleled DC module is proposed. Detailed comparison and analysis of the proposed
system and existing bypass and cascaded DC-module-based system are presented and the performance and characteristic of these systems are evaluation.
關鍵詞﹕光伏發電系統；直流模塊；局部陰影；最大功率點跟蹤
Keywords: photovoltaic power system; DC module; partial shading; maximum power point tracking