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风电接入对继电保护的影响(七)——风电场送出电网继电保护配置研究(2013年第7期)
类别:联席会学术论文专栏 发布时间:[2014-06-18] 点击数:1033

张保会1,原  博1,王  进1,王小立1,2,黄仁谋,吴伟明
(1. 西安交通大学 电气工程学院,陕西 西安 710049;2. 宁夏电力公司调度中心,宁夏 银川 750001;
3. 海南电网公司,海南 海口 570100)

摘要: 开展大规模风电场并网送出电网继电保护实时数字仿真(RTDS)试验,指出现有风电场送出电网继电保护存在的问题,给出风电场送出电网保护配置建议:110 kV 送出线路的主保护采用分相电流差动保护,后备保护采用解微分方程算法的距离Ⅰ段,或将相量距离Ⅰ段保护延时0.15 s 动作,同时配置常规距离Ⅱ、Ⅲ段及零序电流保护;送出变压器主保护采用差动保护,励磁涌流判据采用间断角鉴别、时差法等方法,后备保护配置复合过电流保护及零序电流方向保护;330 kV 送出线路主保护配置2 套独立工作的分相电流差动保护,采用电压突变量选相元件及基于零序分量的方向元件,后备保护配置与110 kV 送出线路相同。
关键词: 风电场; 继电保护; 保护配置; RTDS 试验; 模型

Impact of wind farm integration on relay protection(7):
analysis of relay protection configuration for wind farm outgoing power grid

ZHANG Baohui1,YUAN Bo1,WANG Jin1,WANG Xiaoli1,2,HUANG Renmou3,WU Weiming3
(1. School of Electrical Engineering,Xi’an Jiaotong University,Xi’an 710049,China;2. Dispatching Center of Ningxia Electric Power Company,Yinchuan 750001,China;3. Hainan Power Grid Corporation,Haikou 570100,China)


Abstract: The RTDS experiment is carried out for the relay protections of outgoing power grid of large-scale grid-connected wind farm and its existing problems are pointed out. The corresponding suggestions about the relay configuration are proposed:the main protection of 110 kV outgoing transmission line should adopt the phase-split current differential protection while its backup protection adopt the distance section I using differential equation algorithm,or the time setting of phasor-based distance section Ⅰ be prolonged by 0.15 s while the conventional distance section Ⅱ,distance section Ⅲ and zero-sequence current protection be equipped;the main protection of outgoing transformer should adopt the differential protection with the inrush current criterion using the dead angle identification,time-difference method,etc. while its backup protection adopt the compound over-current protection and zero-sequence current direction protection;the main protection of 330 kV outgoing transmission line should adopt two independent sets of phase-split current differential protection with the voltage sudden-change phase selector and zero-sequence directional component while its backup protection adopt the same configuration as that of 110 kV outgoing transmission line.
Key words: wind farms; relay protection; protection configuration; RTDS test; models

点击原文:风电接入对继电保护的影响(七)——风电场送出电网继电保护配置研究(2013年第7期).pdf

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