基于Teager-Kaiser能量算子Rife-Vincent窗频谱校正的电压闪变测量

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Abstract The composition of Teager-Kaiser energy operator and sidelobe characteristics of Rife-Vincent window are analyzed in this paper. In order to simplify voltage flicker measurement process based on the IEC standard, the envelope parameters of voltage flicker waveform are rapidly extracted by Teager-Kaiser operator and the envelope parameters errors are analyzed and corrected based on Rife-Vincent window improved FFT spectrum. Voltage flicker measurement algorithm using Teager-Kaiser energy operator based on Rife-Vincent window spectral correction is proposed and established. The simulation results show that the influences on voltage flicker measurement which are caused by the frequency of modulating waveform in change, multi-frequency of modulating waveform, the fundamental grid frequency fluctuations, harmonics and inter-harmonics and white noise, are all overcome by using this approach. Compared with the conventional methods, this approach can be designed and realized easily with smaller calculated amount to obtain precise and steady results, which can be used in voltage flicker online monitoring.

Key words： Voltage flicker Teager-Kaiser energy operator Rife-Vincent window improved FFT power quality

Received: 26 November 2013 Published: 05 November 2014

PACS:

TM930.1

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	Articles by authors
	Gao Yunpeng
	Li Feng
	Chen Jing
	Yao Wenxuan
	Huang Chun
	Teng Zhaosheng

Cite this article:

Gao Yunpeng,Li Feng,Chen Jing等. Voltage Flicker Measurement Using the Teager-Kaiser Energy Operator Based on Rife-Vincent Window Spectral Correction[J]. Transactions of China Electrotechnical Society, 2014, 29(6): 248-256.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2014/V29/I6/248

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