基于秃鹰搜索算法的部分遮蔽条件下光伏阵列重构方法  

Bald Eagle Search Based PV Array Reconfiguration Technique under Partial Shading Condition

作　　者：王龙[1] 陈卓 黄文力[1] 郭寅远 李响[1] 常绪成 杨博[3] WANG Long;CHEN Zhuo;HUANG Wenli;GUO Yinyuan;LI Xiang;CHANG Xucheng;YANG Bo(Zhengzhou University of Aeronautics,Zhengzhou 450015,China;Xuchang KETOP Testing Research Institute Co.,Ltd.,Xuchang 461000,Henan Province,China;Faculty of Electric Power Engineering,Kunming University of Science and Technology,Kunming 650500,China)

机构地区：[1]郑州航空工业管理学院,郑州市450015 [2]许昌开普检测研究院股份有限公司,河南省许昌市461000 [3]昆明理工大学电力工程学院,昆明市650500

出　　处：《电力建设》2022年第3期22-30,共9页Electric Power Construction

基　　金：河南省重点研发与推广专项(科技攻关)(212102210026,202102210335);河南省高等学校重点科研项目(20B413007);国家自然科学基金项目(61963020)。

摘　　要：部分遮蔽(partial shading,PS)是影响光伏发电效率最主要的因素之一,它通常会引起失配损耗并降低光伏阵列的输出功率。为了解决这个问题,光伏重构技术被广泛应用于光伏发电系统。文章提出了一种基于秃鹰搜索算法(bald eagle search,BES)的光伏阵列重构方法,它可以有效地减少功率损失,提高发电效率。基于BES的重构方法旨在重新配置光伏阵列的电气连接,以减轻部分遮蔽带来的不利影响,并获得更高质量的输出特性。为了验证BES的有效性,模拟了缓慢移动的云在10 min内造成的阴影,基于此对3个典型的启发式算法进行了全面的比较。仿真结果表明,与网状连接(total cross tied,TCT)相比,BES在缓慢移动的云层阴影下能提高15.10%的输出功率,减小57.90%的失配损耗,并将填充因子由0.6254提高到0.7143;与蚁群算法(ant colony optimization,ACO)和禁忌搜索算法(tabu search,TS)相比,BES也能够获得更低的失配损耗、更高的功率提升百分比和更高的填充因子。Partial shading(PS)is one of the most severe factors affecting the efficiency of photovoltaic(PV)generation,which usually causes mismatch losses and reduces the output power of PV arrays.To solve this problem,PV reconfiguration technology is widely used in PV systems.This paper proposes a PV array reconfiguration method based on bald eagle search(BES)algorithm,which can effectively reduce power losses and improve power generation efficiency.To mitigate the malignant effect of PS and obtain satisfactory output characteristics,BES is designed to reconfigure the electrical connection of PV arrays.To verify the effectiveness of BES,shadows of slowly moving clouds in ten minutes are simulated,upon which a comprehensive comparison of three typical metaheuristic algorithms is undertaken.Simulation results show that compared with total cross tied(TCT),BES can increase the output power by 15.10%,reduce the mismatch loss by 57.90%,and increase the filling factor from 0.6254 to 0.7143 under shadow of slowly moving clouds.Compared with ant colony optimization(ACO)and tabu search(TS),BES also obtains lower mismatch loss,higher power enhancement,and higher filling factor.

关 键 词：光伏阵列 局部遮蔽 光伏重构 秃鹰搜索算法 

分 类 号：TM615[电气工程—电力系统及自动化]