Study of High Precision Frequency Measurement Method of Power System Based on DSP

Cui Yun Gao; Ming Liu; Wen Jing Li; Ru Han

doi:10.4028/www.scientific.net/AMR.403-408.3030

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 403-408Study of High Precision Frequency Measurement...

Study of High Precision Frequency Measurement Method of Power System Based on DSP

Abstract:

In the power systems, frequency is an important parameter for harmonic analysis. This paper proposes a modified high precision zero-crossing detection method. The high frequency noise will affect the power system’s frequency measurement, FIR processing is used for the power signal. Simulation shows that after effective De-noising or when the signal-to-noise ratio (SNR) is higher, the method can reach the precision of 0.01Hz and meet the requirements of frequency measurement precision.

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Periodical:

Advanced Materials Research (Volumes 403-408)

Pages:

3030-3034

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.403-408.3030

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Online since:

November 2011

Authors:

Cui Yun Gao, Ming Liu, Wen Jing Li, Ru Han

Keywords:

FIR, Frequency Measurement, Power System, Zero-Crossing Detection

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