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| Parameter identification algorithm for fault location using one terminal data based on frequency domain | |
| 引用本文： | 康小宁 索南加乐. Parameter identification algorithm for fault location using one terminal data based on frequency domain[J]. 西安交通大学学报(英文版), 2007, 19(1): 18-23 |
| 作者姓名： | 康小宁 索南加乐 |
| 作者单位： | School of Electric Engineering, Xi＇an Jiaotong University, Xi＇an 710049, China |
| 基金项目： | This work was supported by Research Fund for the Doctoral Program of Higher Education （RFDP） （No. 20010698015）. |
| 摘 要： | Fault locationtechniques for power systemhavebeen investigated for many years.The quicker theaccurate location of a fault,the faster the electricpower restoration of service.The fault location techniques can be classifiedintot wo classes:one uses the data fromone ter minalof trans mission line;the other uses the data fromboth ter minals.The accuracy of one ter minal faultlocators is affected by the assumptions about thefault resistance,the source i mpedance,and the cur-rent flowinto fault from… |
| 关 键 词： | 故障定位 参数辨识算法 终端数据 频域分析 电力系统 |
| 文章编号： | 1671-8267（2007）01-0018-06 |
Parameter identification algorithm for fault location using one terminal data based on frequency domain |
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| Kang Xiaoning,Suonan Jiale. Parameter identification algorithm for fault location using one terminal data based on frequency domain[J]. Academic Journal of Xi’an Jiaotong University, 2007, 19(1): 18-23 | |
| Authors: | Kang Xiaoning Suonan Jiale |
| Abstract: | This paper presents a novel algorithm of fault location for transmission line. Solving the network spectrum equations for different frequencies the fault can be located accurately by this algorithm with one terminal data of voltage and current, and the identified parameters, such as fault distance, fault resistance, and opposite terminal system resistance and inductance. The algorithm eliminates the influence of the opposite system impedance on the fault location accuracy, which causes the main error in traditional fault location methods using one terminal data. A method of calculating spectrum from sampled data is also proposed. EMTP simulations show the validity and higher accuracy of the fault location algorithm compared to the existing ones based on one terminal data. |
| Keywords: | fault location parameter identification frequency domain analysis |
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