Measuring Method and Error Compensation for Amplitude-Frequency Characteristics of Electromagnetic Voltage Transformer

Cai Jun Xiong; Cui Yun Gao; Jie Chen; Yi Ding; Shao Yi Chen; Guang Wen Zhang

doi:10.4028/www.scientific.net/AMR.933.566

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 933Measuring Method and Error Compensation for...

Measuring Method and Error Compensation for Amplitude-Frequency Characteristics of Electromagnetic Voltage Transformer

Abstract:

The amplitude-frequency characteristics of voltage transformer need to be measured accurately when the electrical parameters of inverter module are detected. Using frequency method to measure one electromagnetic voltage transformer entirely, the amplitude-frequency characteristics with waveform distortion and phase delay were tested and analyzed by FFT on some typical frequencies. Amplitude-frequency transfer errors were compensated by nonlinear fitting method mainly on 50Hz, 15kHz , 20kHz segment. One order and two order curve fitting of the least squares function called lsqcurvefit were simulated in the environment of MATLAB, the results proved that the two order curve fitting function has a better compensation effect.

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Periodical:

Advanced Materials Research (Volume 933)

Pages:

566-571

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.933.566

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Online since:

May 2014

Authors:

Cai Jun Xiong, Cui Yun Gao*, Jie Chen, Yi Ding, Shao Yi Chen, Guang Wen Zhang

Keywords:

Amplitude-Frequency Characteristics, Electromagnetic Voltage Transformer, Error Compensation, Inverter Module, Nonlinear Fitting

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