Research on Quantitative Evaluation on Anti-Electromagnetic Interference Capability of Ultra High Frequency Partial Discharge Detection Instrument
Zou Yang1, Zhou Qiukuan1, Liu Mingjun2, Tang Zhiguo3, Zhang Da3
1.Electric Science Research Institute State Grid Jiangxi Electric Power Limited Company Nanchang 330096 China; 2. State Grid Jiangxi Electric Power Limited Company Nanchang 330077 China; 3. State Key Laboratory of Electrical Power System with Renewable Energy Sources North China Electric Power University Beijing 102206 China
Abstract：The existence of electromagnetic interference in substations seriously affects the sensitivity of on-site partial discharge detection and the accuracy of defect diagnosis. It is one of the key technical bottlenecks for partial discharge state detection. In this paper, the source of interference and its influence on partial discharge detection are studied, and a relatively complete database of partial discharge samples is accumulated. Based on this, a high performance arbitrary waveform generator is proposed to restore the typical partial discharge. A platform of quantitative evaluation for the anti-electromagnetic interference capability of the partial discharge UHF detection device is established by means of interference real-time simulation. Based on the principle of signal-to-noise ratio, a method for quantitative evaluation of the anti-electromagnetic interference capability of UHF detection devices is proposed for the first time. The evaluation method proposed in this paper has a practical value for improving the quantitative evaluation of the anti-interference performance of the partial discharge detection device and perfecting the partial discharge state detection technology standard.
邹阳, 周求宽, 刘明军, 唐志国, 张达. 局部放电特高频检测装置抗电磁干扰性能的量化评估方法研究[J]. 电工技术学报, 2020, 35(10): 2275-2282.
Zou Yang, Zhou Qiukuan, Liu Mingjun, Tang Zhiguo, Zhang Da. Research on Quantitative Evaluation on Anti-Electromagnetic Interference Capability of Ultra High Frequency Partial Discharge Detection Instrument. Transactions of China Electrotechnical Society, 2020, 35(10): 2275-2282.
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2020, Vol. 35 
