电工技术学报2017，Vol.32Issue(5)：143-151,9.
基于同步相量测量单元的串联补偿线路自适应故障定位算法
An Adaptive Fault Location Algorithm Based on PMU Measurement for Series Compensated Transmission Lines
罗深增 1李银红 2游昊 3李本瑜 3石恒初3
作者信息
- 1. 强电磁工程与新技术国家重点实验室(华中科技大学) 武汉 430074
- 2. 强电磁工程与新技术国家重点实验室(华中科技大学) 武汉 430074
- 3. 云南电力调度控制中心 昆明 650011
- 折叠
摘要
Abstract
An adaptive fault location algorithm was proposed based on synchronized phasor measurement unit(PMU)for series compensated transmission lines.Based on the monitored synchronized voltage phasor and current phasor on both sides,the on-line parameters of series compensated transmission lines required for fault location algorithm were obtained by utilizing the least square estimation method.When a line in failure,distributed line parameter model and phase characteristics of fault point voltage and fault path current were utilized to form fault location function.Therefore,no model of series compensated device is needed.Theoretical analysis and simulation results show that the fault location function is monotonic and changes linear approximately in the possible fault sections.As a result,the fault point can be extracted efficiently and precisely by method of bisection or secant.Simulation results based on PSCAD/EMTDC and Matlab show that the fault location procedure is implemented simple,fast and accurate.Besides,the algorithm is suitable to various fault types,fault positions and fault resistances.关键词
串联补偿线路/同步相量测量单元/在线参数/自适应故障定位算法Key words
Series compensated transmission lines/phasor measurement units/on-line parameters/adaptive fault location algorithm分类
信息技术与安全科学引用本文复制引用
罗深增,李银红,游昊,李本瑜,石恒初..基于同步相量测量单元的串联补偿线路自适应故障定位算法[J].电工技术学报,2017,32(5):143-151,9.
