考虑分布式光伏电源与负荷相关性的接入容量分析

发布时间：2018-06-14 06:26

本文选题：配电网 + 分布式光伏电源　；参考：《电力系统自动化》2017年04期

【摘要】：研究了配电网网架结构和运行工况已知的条件下,分布式光伏电源的可接入容量问题。通过分析配电网网架结构和各节点负荷的历史数据,设定分布式光伏电源接入位置和容量初始值,构建了初始相关性样本矩阵。通过分析分布式光伏电源出力与负荷的相关性,提出了光伏发电就地消纳能力指数的概念及计算方法,构建了改进型相关性样本矩阵。以系统向配电网传输功率最小为目标函数,建立了节点电压、配电网潮流为主要约束的规划模型,利用前推回代潮流算法和退火算法求解。以中山供电局马新站10 kV配电网为例,仿真及潮流验算结果表明:对于一个已知网架结构和运行工况的配电网,考虑分布式光伏电源与负荷的相关性可有效提高分布式光伏电源的接入容量。
[Abstract]:In this paper, the access capacity of distributed photovoltaic power supply is studied under the condition that the grid structure and operating conditions are known. By analyzing the distribution network structure and the historical data of each node load, the initial value of the access position and capacity of the distributed photovoltaic power supply is set up, and the initial correlation sample matrix is constructed. By analyzing the correlation between output and load of distributed photovoltaic power supply, the concept and calculation method of local absorptive capacity index of photovoltaic power generation are proposed, and the improved correlation sample matrix is constructed. Taking the minimum transmission power to the distribution network as the objective function, a programming model with node voltage and distribution network power flow as the main constraint is established. The forward and back generation power flow algorithm and the annealing algorithm are used to solve the problem. Taking the 10 kV distribution network of Ma Xin Station of Zhongshan Power supply Bureau as an example, the results of simulation and power flow checking show that: for a distribution network with known grid structure and operating conditions, Considering the correlation between distributed photovoltaic power and load, the access capacity of distributed photovoltaic power can be improved effectively.
【作者单位】：湖南大学电气与信息工程学院;
【基金】：国家自然科学基金重点项目(51137003)~~
【分类号】：TM615;TM732

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