电网技术2017，Vol.41Issue(6)：2027-2034,8.DOI:10.13335/j.1000-3673.pst.2016.2043
基于改进阻抗法的有源配电网故障测距算法
Impedance Method Based Fault Location Algorithm for Active Distribution System
摘要
Abstract
Considering distributed generators, branches, intermediate loads, hybrid cable-overhead lines and various uncertain factors in active distribution networks, such as fault resistance and load fluctuation, impedance method based fault location algorithm was proposed. Based on power characteristics of zero reactive power consumed by fault resistance, a quadratic fault location equation applicable to different fault types was established. In the algorithm, FTUs were used to synchronously monitor pre/post-fault voltage and current of each power supply point. Iterative calculation was utilized to obtain more accurate load, and a voltage-and-current calculation method for active distribution network was presented. Case study based on modified IEEE34-bus system shows that the fault location algorithm has high location accuracy and robustness for load fluctuation, and is less affected by load model.关键词
有源配电网/故障测距/分布式电源/电缆−架空线混合线路/负荷模型Key words
active distribution network/fault location/distribution generation/cable-overhead lines/load model分类
信息技术与安全科学引用本文复制引用
戴志辉,王旭..基于改进阻抗法的有源配电网故障测距算法[J].电网技术,2017,41(6):2027-2034,8.基金项目
国家自然科学基金项目(51307059) （51307059）
河北省自然科学基金项目(E2014502065) （E2014502065）
中央高校基本科研业务专项资金(2014MS86). Project Supported by the National Natural Science Foundation of China (51307059) （2014MS86）
Hebei Provincial Natural Science Foundation of China (E2014502065) （E2014502065）
Fundamental Research Funds for the Central Universities of China (2014MS86). （2014MS86）
