Assessment method of harmonic emission level based on pan-normal harmonic impedance cloud

DOI

10.2991/iccte-16.2016.147How to use a DOI?

Keywords

Power quality, harmonic impedance, harmonic emission level, pan-normal, impedance cloud, filtering threshold.

Abstract

In this paper, a method for estimating the system harmonic impedance and harmonic emission level based on the pan-normal impedance cloud is presented. First of all, based on the basic principle of fluctuation method, it can be obtained that the key to estimate the system harmonic impedance is how to identify fluctuation ratio samples closer to the true value through theoretical analysis; Secondly, through the study of the probability distribution of fluctuation ratio, this paper proposes the characteristic of the pan-normal distribution meets the applicable conditions of normal cloud model, which can be used to calculate the digital features of impedance cloud by backward cloud generator; Finally, based on the “3En' Rules” of cloud model, the filtering threshold of impedance is determined, then the system harmonic impedance and harmonic emission level can be estimated by filtering qualified samples. It proves the accuracy and effectiveness of the proposed method by the simulation of theoretical model and calculation of practical engineering examples.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Guosheng Zhao
AU  - Dan Zhao
AU  - Siyu Qiu
PY  - 2016/01
DA  - 2016/01
TI  - Assessment method of harmonic emission level based on pan-normal harmonic impedance cloud
BT  - Proceedings of the 2016 International Conference on Civil, Transportation and Environment
PB  - Atlantis Press
SP  - 848
EP  - 855
SN  - 2352-5401
UR  - https://doi.org/10.2991/iccte-16.2016.147
DO  - 10.2991/iccte-16.2016.147
ID  - Zhao2016/01
ER  -