光伏接入配电网的阵列间距规划研究  

Research on Array Spacing Planning in Photovoltaic Integrated Distribution Network

作　　者：霍兆杰 何其淼 祝钧 奚泽立 HUO Zhaojie;HE Qimiao;ZHU Jun;XI Zeli(Foshan Power Supply Bureau,Guangdong Power Grid Co.,Ltd.,Foshan 528000,China)

机构地区：[1]广东电网有限责任公司佛山供电局,广东佛山528000

出　　处：《自动化仪表》2024年第11期122-126,共5页Process Automation Instrumentation

基　　金：广东省科技基金资助项目(202000050014)。

摘　　要：随着光伏电站数量的逐渐增多,阵列间遮挡问题尤为严重。不合格的光伏电站规划结果大幅度降低了发电量。为了最大化光伏电站发电量,提出光伏接入配电网的阵列间距规划研究。采用双面电池改进太阳能固定支架的结构,计算太阳能固定支架的发电量。在获取最优转动频次的基础上,以发电量和最优转动频次的设定为约束条件,将光伏阵列分为阶梯与随坡两种间距设定方式。通过阵列间距规划将发电量最大化与转动频次最小化目标函数作为布置原则,完成光伏接入配电网的阵列间距规划设计。试验结果表明:规划后的光伏电站储能容量高于4000 kWh;阵列间距规划重复率低于4.8%;最佳转动频次结果为5次/d。该研究能够提高光伏电站发电量,保证光伏电站接入配电网后整体结构的合理性,具有较强的工程应用价值。As the number of photovoltaic power plants gradually increases,the problem of inter-array shading is particularly serious.Unqualified photovoltaic power plant planning results is a substantial reduction in power generation.To maximize the power generation of photovoltaic power plants,an array spacing planning research in photovoltaic integrated distribution network is proposed.Bifacial battery are used to improve the structure of solar fixed racking,and the power generation of solar fixed racking is calculated.Based on obtaining the optimal rotation frequency,the photovoltaic array is divided into two spacing setting modes,step and slope,with the constraints of power generation and optimal rotation frequency setting.Through the array spacing planning,the objective function of maximizing power generation and minimizing rotation frequency is taken as the arrangement principle to complete the array spacing planning design for photovoltaic integrated distribution network.The experimental results show that the planned photovoltaic power plants has an energy storage capacity higher than 4000 kWh;the repetition rate of array spacing planning is lower than 4.8%;the optimal rotation frequency turns out to be 5 times/d.The research can improve the power generation of photovoltaic power plants and ensure the rationality of the overall structure of photovoltaic power plants after accessing the distribution network,which has strong engineering application value.

关 键 词：光伏电站 配电网 阵列间距规划 太阳能固定支架 双面电池 太阳高度角 

分 类 号：TH-39[机械工程]