基于阻抗复数平面的自适应距离保护方案_马静.pdf

40 卷 1 期 电 网 技 术 Vol. 40 No. 1 20 16 年1 月 Power System Technology Jan. 20 16 文章编号：1000-3673 （20 16）01-0290-07 中图分类号：TM 76 文献标志码：A 学科代码：470 40 基于阻抗复数平面的自适应距离保护方案 1 2 1 1 1 马静 ，马伟 ，闫新 ，刘畅 ，王增平 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．浙江省电力公司杭州供电公司，浙江省 杭州市 310009 ） Impedance Complex Plane Based Adaptive Distance Protection Scheme 1 2 1 1 1 MA Jing , MA Wei , YAN Xin , LIU Chang , WANG Zengping (1. State Key Laboratory for Alternate Electrical Power System with Renewable Energy Sources (North China Electric Power University), Changping District, Beijing 102206, China; 2. Zheji ang Electric Power Corporation Hangzhou Electric Power Supply Bureau, Hangzhou 310009, Zheji ang Province, China) ABSTRACT: In view of poor immunity of conventional (real time digital simulator ，RTDS)平台的仿真结果表明，所 distance protection scheme to transition resistance, a distance 提方案适用于阶段式距离保护，且不受故障类型的影响；与 protection scheme based on impedance complex plane is 传统距离保护方案相比，具备更强的抗过渡电阻能力，可有 proposed. First, phase angle of fault supplementary impedance 效解决过渡电阻引起的距离保护超越或拒动问题。 caused by transition resistance is calculated with phase 关键词：自适应距离保护；阻抗复数平面；过渡电阻；四边 relationship between measured negative sequence current at 形阻抗继电器 relay and fault current. Then, according to geometric DOI 10.13335/j.1000-3673.pst.2016.01.040 distribution characteristics of