| 用于气体绝缘开关的新型空心线圈电流互感器 |
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| 引用本文： | 罗苏南,赵希才,田朝勃,杨奖利.用于气体绝缘开关的新型空心线圈电流互感器[J].电力系统自动化,2003,27(21):82-85. |
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| 作者姓名： | 罗苏南 赵希才 田朝勃 杨奖利 |
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| 作者单位： | 1. 南瑞继保电气有限公司,江苏省南京市,211100
2. 西安西开高压电气股份有限公司,陕西省西安市,710077 |
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| 基金项目： | 国家电力公司科技项目 (SP11 2 0 0 1 0 1 13 0 1) |
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| 摘 要： | 新型空心线圈电流互感器具有无磁饱和及动态范围宽等优点，与传统的电流互感器相比有着明显的优势。文中介绍了一种可用于220kV气体绝缘开关(GIS)的新型空心线圈电流互感器，互感器以Rogowski线圈为传感头，以FPGA为核心构成数字变换器，采用数字积分技术还原被测电流波形。文中给出了空心线圈电流互感器的原理、结构及实验结果。温度及电磁兼容等试验表明，该互感器性能稳定，满足电子式电流互感器标准(IEC60044—8)精度(0．2级)要求。
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| 关 键 词： | 电流互感器 Rogowski线圈 气体绝缘开关 FPGA 数字积分 |
| 收稿时间： | 1/1/1900 12:00:00 AM |
| 修稿时间： | 1/1/1900 12:00:00 AM |
RESEARCH ON A NOVEL AIR-CORE COIL CURRENT TRANSFORMER FOR GIS |
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| Luo Sunan ,Zhao Xicai ,Tian Zhaobo ,Yang Jiangli.RESEARCH ON A NOVEL AIR-CORE COIL CURRENT TRANSFORMER FOR GIS[J].Automation of Electric Power Systems,2003,27(21):82-85. |
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| Authors: | Luo Sunan Zhao Xicai Tian Zhaobo Yang Jiangli |
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| Affiliation: | Luo Sunan 1,Zhao Xicai 1,Tian Zhaobo 2,Yang Jiangli 2 |
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| Abstract: | A novel air core coil current transformer has some good performances such as no magnetic saturation and wide dynamic range, in which it shows an obvious advantage over conventional CTs in relay protection and measurement. The air core coil current transformer used in 220kV GIS (gas insulation switch) has been developed. It is composed of a Rogowski coil and a digital transducer. The latter uses a FPGA as its core element, and adopts a digital integrator to produce the original wave of the measured current. Furthermore, the principle, the structure and test results of the transformer are presented. The test results show that the measurement accuracy of the developed transformer can reach class 0.2, which satisfies the criterion of IEC60044 8. This work is supported by State Power Corporation of China (No. SP11 2001 01 13 01). |
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| Keywords: | current transformer Rogowski coil GIS FPGA digital integral |
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