| 变压器微机卡尔曼滤波差动保护 |
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| 引用本文： | 沈全荣,史世文.变压器微机卡尔曼滤波差动保护[J].电力系统及其自动化学报,1991(1). |
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| 作者姓名： | 沈全荣 史世文 |
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| 作者单位： | 南京自动化研究所
(沈全荣)，东南大学(史世文) |
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| 摘 要： | 本文对三相三柱变压器的磁路进行了分析,建立了三相变压器励磁涌流计算的数学模型.在对仿真结果分析的基础上,应用卡尔曼滤波原理来实现谐波制动的变压器微机差动保护经过在CRHS微机保护仿硬件开发系统上进行仿真运行表明:保护能迅速地切除故障,可靠地闭锁变压器励磁涌流和过励磁.
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| 关 键 词： | 变压器磁路 励磁涌流计算 卡尔曼滤波 变压器差动保护 |
A DIGITAL DIFFERENTIAL PROTECTION FOR A 3-PHASE POWER TRANSFORMER BASED ON KALMAN FILTERING THEORY |
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| Shen Quanrong,Shi Shiwen.A DIGITAL DIFFERENTIAL PROTECTION FOR A 3-PHASE POWER TRANSFORMER BASED ON KALMAN FILTERING THEORY[J].Proceedings of the CSU-EPSA,1991(1). |
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| Authors: | Shen Quanrong Shi Shiwen |
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| Affiliation: | Shen Quanrong;Shi Shiwen |
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| Abstract: | This article analyses the flux paths of a 3-phasc 3-limb transformer and gives a mathematical model
of a 3-phase transformer inresh calenlation Based on the calculation result analysis, the kalman filtering
theory is used to fulfil the digital harmonic restraint transformer differential protcction. Affer rumming in
a Cormputer Relay Hardware System, the protection shows: it can trip a transformer fault fast, und
gives good restraint during the megnetising inrush or overxcitation of a transformer. |
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| Keywords: | Transformer flax paths Inrush Calculation Kulman filter Transformer Differential Protection |
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