| 基于5G的电网合环电流计算评估及测量分析 |
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| 引用本文： | 王海云,于希娟,张再驰,姚艺迪,徐鹏.基于5G的电网合环电流计算评估及测量分析[J].科学技术与工程,2022,22(25):11057-11061. |
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| 作者姓名： | 王海云 于希娟 张再驰 姚艺迪 徐鹏 |
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| 作者单位： | 国网北京市电力公司电力科学研究院 |
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| 基金项目： | 国网北京市电力公司科技项目(项目号:52022319003L) |
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| 摘 要： | 合环倒闸操作关系着系统供电可靠性和经济性，为提升电网运行人员合环倒闸成功率，解决合环电流的准确计算评估问题，本文在等值阻抗计算分析基础上，结合5G量测终端的电压向量采集装置，提出了一种合环电流的计算评估方法。以实际电网跨区合环点为算例，进行了合环电流的分析评估。结果表明，该方法能实时准确计算出合环稳态电流和冲击电流，为电网运行人员合环倒闸操作提供了确定性依据，在电网运行中有很强可行性和实用性。
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| 关 键 词： | 合环电流 等值阻抗 相角差 5G |
| 收稿时间： | 2022/2/7 0:00:00 |
| 修稿时间： | 2022/8/5 0:00:00 |
Calculation and Measurement Analysis of Network Closing Current Based on 5G |
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| Wang Haiyun,Yu Xijuan,Zhang Zaichi,Yao Yidi,Xu Peng.Calculation and Measurement Analysis of Network Closing Current Based on 5G[J].Science Technology and Engineering,2022,22(25):11057-11061. |
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| Authors: | Wang Haiyun Yu Xijuan Zhang Zaichi Yao Yidi Xu Peng |
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| Affiliation: | Beijing Electric Power Research Institute of Beijing Electric Power Company |
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| Abstract: | The closing and switching operation is related to the reliability and economy of power supply. In order to improve the success rate of closing and switching by the regulation and operation personnel, and the closing current of the power grid cannot be calculated and evaluated accurately. Based on the calculation and analysis of equivalent impedance, combined with the voltage vector collection of 5G measurement terminal, the calculation and evaluation method of the loop closing current was proposed, and then the calculation and evaluation method of loop closing current was carried out by taking the actual cross region loop closing point of power grid as an example. The results show that the closing transient current and impulse current in real time could be calculated accurately, which provided a deterministic basis for regulating the closing and switching operation of operators. The strong feasibility and practicability of the method for calculating and evaluating the loop closing current of power grid was verified. |
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| Keywords: | loop closing current equivalent impedance phase angle difference 5G |
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