基于配电网原故障定位方案的分布式电源准入容量研究_郑涛.pdf

第38 卷 第8 期 电 网 技 术 Vol. 38 No. 8 2014 年8 月 Power System Technology Aug. 2014 1000-3673 （2014 ）08-2257-06 TM 721 A 470·4051 1 1 2 3 郑涛 ，贾仕龙 ，潘玉美 ，杨国生 （1．新能源电力系统国家重点实验室(华北电力大学) ，北京市 昌平区 102206 ； 2．国家电网山东电力检修公司，山东省 济南市 250000 ；3．中国电力科学研究院，北京市 海淀区 100192 ） Research on Allowed Penetration Level of DGs Based on the Traditional Fault Location Methods 1 1 2 3 ZHENG Tao , JIA Shilong , PAN Yumei , YANG Guosheng (1. State Key Laboratory for Alternate Electrical Power System With Renewable Energy Sources (North China Electric Power University), Changping District, Beijing 102206, China; 2. State Grid Shandong Electric Power Maintenance Company, Ji’nan 250000, Shandong Province, China; 3. China Electric Power Research Institute, Haidian District, Beijing 100192, China) ABSTRACT: To solve the problem that the traditional 制。算例表明，限制DG 的接入容量，基于短路计算可设置 distribution network fault section location scheme isn’t 合理的开关定值来区分系统电源提供的最小短路电流及 applicable to the integration of the distributed generation (DG), a DG 提供的最大反向短路电流，保证传统的故障区段定位方 method by limiting DG’s access capacity to guarantee the 案可用。与其他开关定值设置方法的对比表明，直接基于短 traditional fault location methods available is proposed. Firstly, 路电流计算，会提高DG 的接入容量或者馈线的供电长度。 the traditional fault location methods and the calculation of fault 有源配电网；分布式电源；故障分析；故障定位； current of DG are introduced; then the effect of DG on the 准入容量