基于自适应占空比扰动法的最大功率点跟踪控制  

MPPT control based on self-adaptive duty-ratio perturbation algorithm

作　　者：李一丹[1] 王笃亭[1] 朱显辉[1] 康红明[1] 卫三民 

机构地区：[1]黑龙江科技大学电气与控制工程学院,哈尔滨150022 [2]北京西电华清科技有限公司,北京100085

出　　处：《黑龙江电力》2015年第2期102-104,115,共4页Heilongjiang Electric Power

基　　金：黑龙江省自然科学基金(E201214)

摘　　要：为解决扰动观察法跟踪光伏电池阵列最大功率时会在实际工作点附近产生振荡的问题,通过分析光伏电池的工作特性,对比各种基于扰动观察法的最大功率点跟踪的优缺点,提出了自适应占空比扰动法对光伏电池板进行最大功率跟踪控制。给出了最大功率点跟踪的控制流程,结合两级变换结构的光伏发电系统实现了对光伏电池阵列的最大功率点跟踪。Using perturb- and- observe algorithm to track the maximum power of photovoltaic battery array will generate oscillation around the practical working point. In order to solve the problem,through analyzing the characteristic of the photovoltaic battery and comparing a few MPPT strategies based on the perturb- and- observe method,a self- adaptive duty- ratio perturb- and- observe algorithm is adopted to track and control the maximum power point of the photovoltaic cells. The MPPT control flow is proposed and the photovoltaic cell MPPT is realized by using photovoltaic power system with double- converter topology.

关 键 词：光伏电池 最大功率点跟踪 扰动观测法 占空比 自适应 

分 类 号：TM615[电气工程—电力系统及自动化]