摘要
该文采用工程简化模型,对串联(S)、并联(P)、串并联(SP)、全交叉连接(TCT)、桥连(BL)、蜂窝(HC)、串并联全交叉连接(SP-TCT)、桥连接全交叉连接(BL-TCT)、蜂窝式全交叉连接(HC-TCT)、桥连接蜂窝式连接(BL-HC)、NS连接以及OEC连接等12种4×4及6×4光伏阵列结构进行了对比研究。实验结果表明,所有阵列结构中,输出功率最大的是P结构,最小的是S结构;光伏阵列的功率损耗大小依赖于阴影的模式。全互通连接结构可减少局部遮荫对阵列输出功率的影响;分散的阴影有利于提高阵列输出功率;遮荫方式与阵列规模的改变都会影响输出功率的大小与特征。对称的阵列对于非对称阵列可能有更大的优势抵抗阴影的影响。该研究为光伏电站建设时阵列结构的选择提供了参考。
In the paper,a simplified engineering model is used to do a comparative study on series(S),parallel(P),series and parallel(SP),full cross connection(TCT),bridge connection(BL),cellular(HC),series and parallel full cross connection(SP-TCT),bridge connection full cross connection(BL-TCT),honeycomb full cross connection(HC-TCT),bridge connection honeycomb connection(BL-HC),NS connection and OEC connection types of 4×4and 6×4 photovoltaic array structures.The experimental results show that among all array structures,the maximum output power is the P structure and the minimum is the S structure.The power loss of the photovoltaic array depends on the shadow mode.The fully interconnected connection structure can reduce the impact of partial shading on the output power of the array.The scattered shadow is beneficial to increase the output power of the array.The change of shading mode and array scale will affect the size and characteristics of the output power.Symmetrical arrays may have greater advantages over asymmetrical arrays to resist the influence of shadows.This study provides a reference for the selection of array structure during the construction of photovoltaic power station.
作者
章文龙
肖文波
郁纪
吴华明
Zhang Wenlong;Xiao Wenbo;Yu Ji;Wu Huaming(Key Laboratory of Nondestructive Testing,Ministry of Education Nanchang Hangkong University,Nanchang 330063,China;Jiangxi Engineering Laboratory for OptoelectronicsTesting Technology,Nanchang Hangkong University,Nanchang 330063,China)
出处
《实验技术与管理》
CAS
北大核心
2022年第3期70-79,共10页
Experimental Technology and Management
基金
国家自然科学基金项目(12064027,62065014)
无损检测技术教育部重点实验室开放基金(EW201908442,EW201980090)。
关键词
光伏阵列
阵列结构
阵列规模
局部遮荫
输出功率
photovoltaic array
array structure
array scale
partial shading
output power
