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| 电流采样值差动保护若干问题的探讨 | |
| 引用本文： | 林湘宁,何战虎,刘世明,杨春明,刘沛.电流采样值差动保护若干问题的探讨[J].电力系统自动化,2001,25(19):27-33. |
| 作者姓名： | 林湘宁 何战虎 刘世明 杨春明 刘沛 |
| 作者单位： | 1. 华中科技大学电力系；东方电子信息产业股份公司综自所 2. 东方电子信息产业股份公司综自所 3. 华中科技大学电力系 |
| 摘 要： | 电流采样值差动保护在各种差动保护中逐渐体现了其独具的优越性。为更好地应用该保护判据，文中详细分析了采样初相角、判据的数据窗长度R的选取、整定门槛Iset与重复判断次数S的相互关系及对采样值差动保护的影响等，严格论证了现有的一些推论，并提出了进一步优化采样值差动判据的设想。最后对各种设想均进行理论分析，证明了其可行性。 |
| 关 键 词： | 电流采样 差动保护 微机保护 继电保护 电力系统 |
| 收稿时间： | 1/1/1900 12:00:00 AM |
| 修稿时间： | 1/1/1900 12:00:00 AM |
DISCUSSIONS ON SOME ASPECTS OF SAMPLING VALUE DIFFERENTIAL CURRENT PROTECTION |
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| Lin Xiangning,H e Zhanhu,L iu Shiming,Yang Chunming,L iu Pei .Huazhong U niversity of Science and Technology,Wuhan ,China .Dongfang Electronic Inc,Yantai ,China.DISCUSSIONS ON SOME ASPECTS OF SAMPLING VALUE DIFFERENTIAL CURRENT PROTECTION[J].Automation of Electric Power Systems,2001,25(19):27-33. | |
| Authors: | Lin Xiangning H e Zhanhu L iu Shiming Yang Chunming L iu Pei Huazhong U niversity of Science and Technology Wuhan China Dongfang Electronic Inc Yantai China |
| Affiliation: | Lin Xiangning1,2,H e Zhanhu2,L iu Shiming1,2,Yang Chunming2,L iu Pei1 1.Huazhong U niversity of Science and Technology,Wuhan430 0 74,China 2 .Dongfang Electronic Inc,Yantai2 6 40 0 1,China |
| Abstract: | Sampling value based differential current protection possesses the unique advantages in comparison with other types of differential protections.However,the existing studies on the criterion are som ewhatabsent.In order to apply the criterion better,the influences of sampling initial angle,the m ain param eters R and S of the criterion,the differential current threshold to the criterion are analyzed.The presented inference is also strictly proved.Furtherm ore,the assum ption to optimize the sampling value based differential protection is put forward,and its availability is dem onstrated. |
| Keywords: | sampling value based differential protection sam pling initial angle transient impulse inferenc |
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