摘要
受共享单车等移动载体运动影响,光伏电池常处于振动状态,从而造成光强振荡。为消除因光强振荡对光伏电池输出功率的影响,提出一种光强振荡下光伏电池最大功率点跟踪(MPPT)方法。首先,基于对光强振荡下MPPT特性的分析,建立了光强电压阈值MPPT算法。最后,仿真及实验验证结果表明该方法可有效消除光强振荡引起的干扰。与扰动观察法相比,该方法可使输出功率提高2.72%。
Affected by bike sharing and other mobile carriers,solar cells are often in a vibrating state,resulting in irradiance oscillation.In order to eliminate the influence of irradiance oscillation for output power of the photovoltaic cell,a new maximum power point tracking（MPPT） method for photovoltaic system under irradiance oscillation is proposed. Firstly, based on the analysis of the MPPT characteristics under irradiance oscillation,a new irradiance voltage threshold MPPT algorithm is established.Finally, the tracking performance of the proposed algorithm is investigated by simulation and experiment of photovoltaic system.And the results demonstrate that the proposed method can eliminate the influence of irradiance oscillation, compared with perturb and observe method, it is found that the energy conversion efficiency of the proposed algorithm has increased by 2.72%.
作者
彭乐乐
陈世杰
张雯柏
朱元木
PENG Le-le, CHEN Shi-jie, ZHANG Wen-bai, ZHU Yuan-mu(Shanghai University of Engineering Science, Shanghai 201620, China)
出处
《电力电子技术》
CSCD
北大核心
2018年第7期106-108,共3页
Power Electronics
基金
国家自然科学基金(51405287)
上海高校青年教师培养资助计划(ZZGCD15118)
关键词
光伏电池
最大功率点跟踪
光强振荡
扰动观察法
photovohaic cell
maximum power point tracking
irradiance oscillation
perturb and observe method
