| 基于DSP技术的氧化锌避雷器在线监测仪的设计 |
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| 引用本文： | 王义,徐勇.基于DSP技术的氧化锌避雷器在线监测仪的设计[J].世界科技研究与发展,2011(6):1023-1025. |
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| 作者姓名： | 王义 徐勇 |
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| 作者单位： | 湖南大学电气与信息工程学院,长沙410082 |
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| 摘 要： | 为了在线测量氧化锌避雷器全泄漏电流和阻性电流，提出了一种基于DSP技术的新型监测仪的设计方案。该监测仪以TMS320F2812为核心，通过电流传感器获取电流信号，经FFT运算求得避雷器全泄漏电流，并采用一种新的补偿算法提取出阻性电流值，据此来判断避雷器当前工作状态。另外该监测仪还可以对现场的监测器进行校对，判断现场监测器的性能优劣。与传统的氧化锌避雷器在线监测仪相比，该新型监测仪不需要电压量的采集，具有易于携带，接线方便，精度高等优点。
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| 关 键 词： | 在线监测 全泄漏电流 阻性泄漏电流 DSP |
Design of Zinc Oxide Lightning Arrester Online Monitoring Instrument Based on DSP Technology |
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| WANG Yi ;XU Yong.Design of Zinc Oxide Lightning Arrester Online Monitoring Instrument Based on DSP Technology[J].World Sci-tech R & D,2011(6):1023-1025. |
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| Authors: | WANG Yi ;XU Yong |
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| Institution: | WANG Yi ;XU Yong(School of Electrical and Information Engineering, Hunan University, Changsha 410082) |
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| Abstract: | In order to online measure the total leakage current and resistive current of MOA, a design scheme of new monitoring instrument based on DSP technology is introduced. TMS320F2812 is taken as its core. Current signal is gained through the electric current sensor. The arrester＇s leakage current is obtained by means of the FFT operation. One kind of new compensation algorithm is used to withdraw the magnitude of resistance current. And the arrester current active status can be judged accordting to the above process. In addition, proofreading can be carried on to determine the merits of work-site monitors. Compared with the traditional MOA on-line monitoring instrument, the new monitor meter that does not require voltage acquisition, has the characteristic of carrying easily, connecting conveniently and high precision. |
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| Keywords: | online monitoring whole leakage current resistive leakage current DSP |
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