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On the effects of interharmonic distortion on measurement instruments based on PLL systems

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3 Author(s)
L. Feola ; Department of Information Engineering - Second University of Naples, DII-SUN, Aversa (CE) - Italy ; R. Langella ; A. Testa

The effects of interharmonic distortion on measurement instruments based on PLL systems are analyzed. After some brief recalls on the general scheme of a three-phase PLL, a linearized analysis in the presence of interharmonics is developed in terms of PLL phase angle and frequency errors. Finally, the results of a numerical case-study on a Power Quality measurement instrument are discussed.

Published in:

Applied Measurements for Power Systems (AMPS), 2012 IEEE International Workshop on

Date of Conference:

26-28 Sept. 2012