In this paper, a new power quality index (PQI), which is directly related to the generation of distortion power from nonlinear harmonic loads, is introduced to determine their harmonic pollution ranking in a distribution power system. The electric load composition rate (LCR) and the total harmonic distortion (THD) for the estimated currents on each harmonic load are used to define the proposed PQI. The reduced multivariate polynomial (RMP) model with one-shot training property is applied to realize the PQI. Then, the ranking of distortion power for each nonlinear load, which have adverse effect on the entire system, is determined. It is proved that the relative ranking based on the PQI matches that on the distortion power computed directly from each harmonic load.
S. Lee et al., "New Power Quality Index in a Distribution Power System by Using RMP Model," Proceedings of the IEEE Industry Applications Society Annual Meeting, 2008. IAS '08, Institute of Electrical and Electronics Engineers (IEEE), Oct 2008.
The definitive version is available at http://dx.doi.org/10.1109/08IAS.2008.152
IEEE Industry Applications Society Annual Meeting, 2008. IAS '08
Electrical and Computer Engineering
Keywords and Phrases
Distortion Power; Distribution Power System; Harmonic Pollution Ranking; Power Quality Index; Reduced Multivariate Polynomial (RMP) Model
Article - Conference proceedings
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