Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Analysis of power line phasor measurement error

Power line phasor 측정 오차 해석 연구

  • Kim, Byoung-Il (School of Electrical and Electronics Engineering Chung-Ang University) ;
  • Chang, Tae-Gyu (School of Electrical and Electronics Engineering Chung-Ang University)
  • 김병일 (중앙대학교 전자전기공학부) ;
  • 장태규 (중앙대학교 전자전기공학부)
  • Published : 2006.06.21
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Abstract

This paper presents an analytic derivation of phase measurement error. The analysis derives the measurement error caused by the finite-bit quantization of both input signals and twiddle factors used in the recursive implementation of the phasor measurement algorithm. The derivation is based on the statistical exploration of the error dynamic equations. The effect of frequency deviation and the number of DFT points are also included in the study. The analysis results are verified with the data obtained from the computer simulation by widely varying the values of error causing factors.

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