| 引用本文: | 姚庆华,董林会.现代智能变电站中二次回路延时检测方法的研究分析[J].电力系统保护与控制,2018,46(23):182-186.[点击复制] |
| YAO Qinghua,DONG Linhui.Research and analysis of the secondary circuit delay detection method in modern intelligent substation[J].Power System Protection and Control,2018,46(23):182-186[点击复制] |
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| 摘要: |
| 较传统变电站而言，智能变电站二次回路中的延时不确定性增加，对继电保护产生的影响也更大。为了实现对二次回路整体延时特性的测试和对单个装置的检测，首先通过对智能变电站二次回路中所存在的延时环节进行分析。然后针对二次回路中信息传输的形式提出对整个回路延时的检测方法和实验方案。最后给出一组采用所提实验方法的测试仪器的测量结果。该检测方法和实验方案测量精度高、操作简单、易于实现，能够切实地测量二次回路中单个装置的延时以及回路整体延时，供工作人员从整体把握智能变电站运行维护，对二次回路中装置的运行维护具有一定的指导意义。 |
| 关键词: 智能变电站 二次回路 延时 检测方案 运行维护 |
| DOI：10.7667/PSPC171733 |
| 投稿时间：2017-11-27修订日期：2018-01-28 |
| 基金项目:国家电网公司科技项目资助(52094015001A) |
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| Research and analysis of the secondary circuit delay detection method in modern intelligent substation |
| YAO Qinghua,DONG Linhui |
| (Tangshan Power Supply Company, State Grid Jibei Electric Power Co., Ltd., Tangshan 063000, China) |
| Abstract: |
| Compared with the traditional substation, the delay uncertainty in the secondary circuit of the intelligent substations increases, which greatly affects relay protection. In order to measure the whole delay characteristic of the secondary circuit and detect the single device, first of all, this paper analyses the delay link in the secondary circuit of the intelligent substation. Then, according to the form of information transmission in the secondary loop, the detection method and experimental scheme for the delay of the whole loop are put forward. Finally, the measurement results of a group of test instruments using the experimental method are given. The measuring method and the experimental scheme have the advantages of high measurement precision, simple operation and easy implementation. It can measure the delay of the single device and the whole delay of the loop in the secondary circuit, so that the staff can grasp the operation and maintenance of the intelligent substation from the whole situation. It has certain guiding significance for the operation and maintenance of the device in the secondary circuit. This work is supported by Science and Technology Project of State Grid Corporation of China (No. 52094015001A). |
| Key words: intelligent substation secondary circuit delay detection scheme operational maintenance |
