| 基于漏感变化的变压器式可控高抗匝间保护新原理 |
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| 引用本文： | 郑涛,树玉增,董淑惠,曹雅怀. 基于漏感变化的变压器式可控高抗匝间保护新原理[J]. 电力系统自动化, 2011, 35(12): 65-69 |
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| 作者姓名： | 郑涛 树玉增 董淑惠 曹雅怀 |
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| 作者单位： | 1. 新能源电力系统国家重点实验室,华北电力大学,北京市102206
2. 华北电力大学电力工程系,河北省保定市,071003 |
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| 基金项目： | 中央高校基本科研业务费专项资金资助 |
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| 摘 要： | 鉴于变压器式可控高抗中主电抗器匝间故障率较高,但动作灵敏性偏低的现状,文中在对变压器式可控高抗匝间故障分析的基础上,结合主电抗器的等效总漏感和两侧的漏感值在匝间故障、正常运行及其他运行工况下的不同变化规律,利用比率制动的思想,提出一种新型匝间保护原理.以表征等效总漏感变化的标准差为动作量,以表征两侧漏感变化平稳性的量为...
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| 关 键 词： | 变压器式可控高抗 匝间故障 等效总漏感 类比率制动特性 |
| 收稿时间： | 2010-10-20 |
| 修稿时间： | 2011-06-03 |
Interturn Fault Protection for Transformer Type Controllable Shunt Reactor Based on Leakage Inductance Change |
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| ZHENG Tao,SHU Yuzeng,DONG Shuhui,CAO Yahuai. Interturn Fault Protection for Transformer Type Controllable Shunt Reactor Based on Leakage Inductance Change[J]. Automation of Electric Power Systems, 2011, 35(12): 65-69 |
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| Authors: | ZHENG Tao SHU Yuzeng DONG Shuhui CAO Yahuai |
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| Affiliation: | ZHENG Tao1,SHU Yuzeng1,DONG Shuhui2,CAO Yahuai1 (1.State Key Laboratory for Alternate Electrical Power System with Renewable Energy Sources,North China Electric Power University,Beijing 102206,China,2.North China Electric Power University,Baoding 071003,China) |
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| Abstract: | The rate of interturn fault on the transformer part of controllable shunt reactor of transformer type is high,whereas the sensitivity of protection is low.In order to solve this problem,first,the mechanism of interturn fault of transformer type reactors is analyzed,then different variation laws of leakage inductance on each side and the equivalent total leakage inductance of main reactor under normal and other operations is discussed.Based on the percentage restrain characteristic,a novel interturn fault pr... |
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| Keywords: | controllable shunt reactor of transformer type interturn fault equivalent total leakage inductance percentage restraint |
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