最大功率点跟踪能量损耗研究  

Research on the Energy Loss of Maximum Power Point Tracking

作　　者：陈欢[1] 张兴[1] 谭理华[1] 黎芹[1] 

机构地区：[1]合肥工业大学电气与自动化工程学院,安徽合肥230009

出　　处：《电源世界》2010年第2期26-29,32,共5页The World of Power Supply

摘　　要：光伏并网发电系统中,最大功率点跟踪对于提高光伏系统的效率至关重要。本文将能量损耗的观点引入到最大功率点跟踪的分析中,详细分析了扰动观察法的振荡、跟踪过程中误判的能量损耗。提出了一种改进的扰动观察法,经实验验证新方法能够很好地解决振荡,跟踪精度和跟踪速度问题。In a grid-connected photovoltaic power improve the efficiency of photovoltaic power system maximum power point tracking of perturbatio tracking, n and obs system, it is vital to have the maximum power point tracking to This article introduces views about power loss into the analysis of discussing in detail the power loss due to the misjudgment during the oscillating and ervation method. A revised perturbation and observation method is proposed and by experiments it is proved that it can solve well problems of oscillation, tracking resolution and speed.

关 键 词：扰动观察法 振荡 误判 能量损耗 

分 类 号：TK513.4[动力工程及工程热物理—热能工程]