分布式发电注入容量与接入位置的优化配置分析  

Analysis of optimal allocation of penetration level and interconnected location of DG

作　　者：钟嘉庆[1] 叶治格[1] 卢志刚[1] 

机构地区：[1]燕山大学电力电子节能与传动控制河北省重点实验室,河北秦皇岛066004

出　　处：《电力系统保护与控制》2012年第7期50-55,共6页Power System Protection and Control

基　　金：国家自然科学基金(61071201);河北自然科学基金(F2010001319);秦皇岛科学技术研究与发展计划项目(201101A125);河北省重点实验室开放基金项目(DLDZ201101)~~

摘　　要：针对配电网中引入分布式发电(Distributed Generation,DG)后对线路损耗的影响,首先对DG接入电网后,潮流的分布进行定性分析。在线损最小时,定性上确定了DG的注入容量和接入位置;然后,抽取对线损变化起决定作用的部分网络进行合理的简化等效,以线损最小为目标,分别从DG的注入容量和接入位置两方面对电网线损的影响进行了定量的理论推导,得出了分布式电源注入容量与接入位置之间关系的两个重要公式。最后与仿真结果进行对比,对比结果基本吻合,验证了所推导的结论的正确性,为工程的实际运用提供了借鉴。For the impact on line loss after distributed generation （Distributed Generation, DG） interconnected to the distribution network, this paper firstly makes a qualitative analysis of the power flow distribution after DG connected to the grid. When the line loss reaches the minimum, it qualitatively determines the penetration level and interconnected location of DG. Secondly, this paper makes a simplified equivalent by choosing part of the network that plays a decisive role in the change of line loss. In the condition of line loss minimum, from the two aspects of penetration level and interconnected location of DG that impact grids line loss, respectively, we make a quantitative theoretical derivation, and get two important formulas that show the relationship between penetration level and interconnected location. Finally, we compare it with simulation results, and find that the results are basically consistent, verifying the correctness of the conclusions derived from this paper, and providing a reference for the practical application of engineering. This work is supported by National Natural Science Foundation of China （No. 61071201） and Natural Science Foundation of Hebei Province （No. F2010001319）.

关 键 词：线损 分布式发电 定性 定量 注入容量 接入位置 

分 类 号：TM61[电气工程—电力系统及自动化]