J4 ›› 2011, Vol. 29 ›› Issue (01): 26-.
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ZHAO Zhen-ying|LI Bao-hua
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Abstract:
In order to reduce the influence caused by interference on site and the difficulty to install the system, an on-line monitoring method based on WSN(Wireless Sensor Networks) and correlation algorithm is designed to measure dielectric loss in high-voltage electricity equipments. It provided detail introductions to the system measuring principle and synchronization sampling. Theoretical demonstration to phase calculation with correlation algorithm is supplied and the design of on-ine monitoring system based on such algorithm is represented. Compared with FFT(Fast Fourier Transformation) algorithm, the efficiency of correlation algorithm is 128 times higher. On-site simulation experiments show that the measurement precision of dielectric loss factor tan δ has reached 0.039%, and the system has better antiinterference than QS1 furbenicillin bridge.
Key words: high voltage measuring technique, dielectric loss, wireless sensor network(WSN), correlation algorithm, on-line monitoring, synchronization sampling
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ZHAO Zhen-ying|LI Bao-hua. Method of On-Line Monitoring for Insulation of Power Equipment[J].J4, 2011, 29(01): 26-.
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http://xuebao.jlu.edu.cn/xxb/EN/Y2011/V29/I01/26
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