| 引用本文: | 刘 宾,梅 军,郑建勇,姚 磊.SFCL接入电网对接地短路阻抗继电器接线的影响[J].电力自动化设备,2013,33(6): |
| LIU Bin,MEI Jun,ZHENG Jianyong,YAO Lei.Impact of grid-connected SFCL on wiring mode of grounding impedance relay[J].Electric Power Automation Equipment,2013,33(6): |
|
| 摘要: |
| 以电阻型超导故障限流器接入电网为研究对象，着重分析了接入超导故障限流器给原线路距离保护接地短路阻抗继电器接线方式带来的影响，并提出一种新的接线方式。采用基于PSCAD／EMTDC软件搭建仿真模型，通过设置线路在不同位置处发生单相接地短路故障，仿真在新的接线方式下，超导故障限流器与距离保护装置的配合使用效果。仿真分析结果表明：在新的阻抗继电器接线方式下，继电器能够正确反映故障点到保护安装处的距离，测量阻抗误差大幅降低，超导故障限流器可以与线路距离保护正确地配合使用。 |
| 关键词: 超导故障限流器 距离保护 接线方式 仿真 接地 |
| DOI： |
| 分类号: |
| 基金项目:江苏省科技支撑计划——工业部分（BE2009053）；江苏省产学研前瞻性联合研究项目（BY2011157）；东南大学重大科学研究引导基金资助项目（2011seuzd09） |
|
| Impact of grid-connected SFCL on wiring mode of grounding impedance relay |
|
LIU Bin1,2, MEI Jun1,2, ZHENG Jianyong1,2, YAO Lei1,2
|
|
1.Electrical Engineering School，Southeast University，Nanjing 210096，China;2.Laboratory of Electrical Equipment and Automation in Suzhou，Suzhou 215123，China
|
| Abstract: |
| With the grid-connected resistive SFCL（Superconducting Fault Current Limiter） as the research object，its impact on the wiring mode of grounding impedance relay is studied in detail and a new wiring mode is proposed. With PSCAD／EMTDC simulation software，a power system model is built and the grounding fault is set at different positions of line，based on which，the cooperation of SFCL with distance protection in new wiring mode is simulated. The simulative results show that，the relay measures the impedance with much lower error in new wiring mode and locates the fault point correctly. Therefore，SFCL can work in with the line distance protection properly. |
| Key words: SFCL distance protection wiring mode computer simulation electric grounding |
