基于等效电感的超高压并联电抗器匝间保护新原理  

A NOVEL PRINCIPLE OF THE EHV PARALLEL CONNECTION REACTOR INTERTURN PROTECTION BASED ON AN EQUIVALENT INDUCTANCE

作　　者：辛振涛[1] 尹项根[1] 杨经超[1] 蔡树立[1] 黄雄[1] 

机构地区：[1]华中科技大学电气与电子工程学院,湖北省武汉市430074

出　　处：《电力系统自动化》2004年第10期73-75,87,共4页Automation of Electric Power Systems

摘　　要：介绍了超高压并联电抗器的匝间故障情况,提出了一种基于等效电感的新的匝间故障保护原理,建立了基于能量损失函数的微机保护数学模型。根据仿真模型,利用EMTP仿真了超高压并联电抗器的匝间故障、外部故障、电抗器空投等几种工作状态。仿真结果表明该原理行之有效。The fault of the EHV parallel connection reactor is firstly introduced in brief. Then this paper proposes a novel principle of interturn protection based on an equivalent inductance and sets up a mathematical model based on the energy function. According to the simulation model, this paper studies the fault conditions of interturn fault, external fault and no-load operation etc. with EMTP program. The simulation results indicate that the novel principle is effective.

关 键 词：电抗器 匝间保护 电感 EMTP 

分 类 号：TM863[电气工程—高电压与绝缘技术]