多频率同步的电流互感器<i>H</i><sub>n-ave</sub>估计方法

doi:10.19595/j.cnki.1000-6753.tces.161488

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Abstract In the estimation of frequency response characteristic of current transformer,the traditional methods require either heavy workload or a long test time.This paper proposed a H_n-ave frequency response estimation of current transformer with synchronized multi-frequency signal.The proposed method used a multi-frequency synchronized signal as the input.And it applied the shift correlation method to reduce the attenuation of the correlation function waveform.An average of cross-correlation power spectrum was adopted to suppress the influence of the white Gaussian noise from input and output signals on frequency response estimation.The proposed method can accurately estimate the frequency response of the current transformer.Simulation and practical test results have verified the usefulness of the proposed method.

Key words： Current transformer multi-frequency synchronized signal H_n-aveestimation frequency response function spectral analysis

Received: 18 September 2016 Published: 14 September 2017

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TM935

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	Articles by authors
	Zhu Liang
	Wen He
	Ma Jian
	Zhang Chunqiang
	Jin Ran

Cite this article:

Zhu Liang,Wen He,Ma Jian等. H_n-ave Frequency Response Estimation of Current Transformer with Synchronized Multi-Frequency Signal[J]. Transactions of China Electrotechnical Society, 2017, 32(17): 111-118.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.161488 OR https://dgjsxb.ces-transaction.com/EN/Y2017/V32/I17/111

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