| 基于补偿法的快速短路电流算法 |
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| 引用本文： | 但扬清,刘文颖,朱艳伟,李扬,程林.基于补偿法的快速短路电流算法[J].电力系统自动化,2011,35(14):103-106. |
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| 作者姓名： | 但扬清 刘文颖 朱艳伟 李扬 程林 |
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| 作者单位： | 1. 华北电力大学电气与电子工程学院,北京市,102206
2. 西北电网有限公司,陕西省西安市,710048 |
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| 摘 要： | 提出一种基于戴维南定理和补偿法的快速短路电流计算方法,算法中采用补偿法在故障端口引入补偿电流,以此来模拟节点短路故障对原网络的影响。该方法无需修改节点导纳矩阵,仍采用故障前的导纳矩阵来解算网络的状态,可达到求解整个网络的目的。与通用算法相比,既能计算各种类型的短路故障,又节省了求解故障后导纳矩阵的时间。计算结果表明,该...
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| 关 键 词： | 导纳模型 戴维南定理 补偿法 短路故障 故障计算 |
| 收稿时间： | 2010/10/12 0:00:00 |
| 修稿时间： | 6/13/2011 8:39:12 AM |
A Fast Algorithm of Short-circuit Current Based on Compensation Method |
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| DAN Yangqing,LIU Wenying,ZHU Yanwei,LI Yang,CHENG Lin.A Fast Algorithm of Short-circuit Current Based on Compensation Method[J].Automation of Electric Power Systems,2011,35(14):103-106. |
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| Authors: | DAN Yangqing LIU Wenying ZHU Yanwei LI Yang CHENG Lin |
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| Affiliation: | 1.North China Electric Power University,Beijing 102206,China;2.Northwest China Grid Company Limited,Xi’an 710048,China) |
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| Abstract: | A fast algorithm for calculating short-circuit current based on Thevenin’s theorem and compensation method is presented.With compensation method,compensation current is introduced in the algorithm into the fault ports for modeling the influence of node short-circuit faults on original network.It can solve the state variable of post-fault network by using nodal admittance matrix of pre-fault network without modification,then solution of the whole network is obtained.Compared with general algorithm,the algorithm proposed can not only compute various short-circuit faults,but also save time for solving post-fault admittance matrix.With faster computing speed and higher precision,the algorithm can better meet the demand of the real-time calculation of short-circuit current. |
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| Keywords: | admittance model Thevenin’s theorem compensation method short circuit fault fault calculation |
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