Modeling and analysis of grid harmonic distortion impact of aggregated DG inverters

Fei Wang, J.L. Duarte, M.A.M. Hendrix, P.F. Ribeiro

Research output: Contribution to journalArticleAcademicpeer-review

204 Citations (Scopus)
6 Downloads (Pure)

Abstract

This paper proposes an impedance-based analytical method for modeling and analysis of harmonic interactions between the grid and aggregated distributed generation (DG) inverters. The root cause of harmonic interaction/resonance problems is the impedance-network quasi-resonance between the effective output impedance of the inverter and the equivalent grid impedance at the connection point. Starting with the output impedance modeling of an inverter, a Norton model of the inverter is derived. Comparing with the switching model and the average model of the inverter, simulation results show the effectiveness of the model. This paper proposes that impedance limits should be specified and used as an extra design constraint for DG inverters in order to minimize the harmonic distortion impact on the grid. Assuming the impedance models of individual inverters and local loads within a distribution grid are known, especially in the case of new grids under construction, harmonic interactions between the grid and a certain number of DG inverters can be preliminarily estimated.
Original languageEnglish
Pages (from-to)786-797
Number of pages12
JournalIEEE Transactions on Power Electronics
Volume26
Issue number3
DOIs
Publication statusPublished - 2011

Fingerprint

Distributed power generation
Harmonic distortion

Cite this

@article{4f5af579e21c41cfbc91c8e25920620c,
title = "Modeling and analysis of grid harmonic distortion impact of aggregated DG inverters",
abstract = "This paper proposes an impedance-based analytical method for modeling and analysis of harmonic interactions between the grid and aggregated distributed generation (DG) inverters. The root cause of harmonic interaction/resonance problems is the impedance-network quasi-resonance between the effective output impedance of the inverter and the equivalent grid impedance at the connection point. Starting with the output impedance modeling of an inverter, a Norton model of the inverter is derived. Comparing with the switching model and the average model of the inverter, simulation results show the effectiveness of the model. This paper proposes that impedance limits should be specified and used as an extra design constraint for DG inverters in order to minimize the harmonic distortion impact on the grid. Assuming the impedance models of individual inverters and local loads within a distribution grid are known, especially in the case of new grids under construction, harmonic interactions between the grid and a certain number of DG inverters can be preliminarily estimated.",
author = "Fei Wang and J.L. Duarte and M.A.M. Hendrix and P.F. Ribeiro",
year = "2011",
doi = "10.1109/TPEL.2010.2091286",
language = "English",
volume = "26",
pages = "786--797",
journal = "IEEE Transactions on Power Electronics",
issn = "0885-8993",
publisher = "Institute of Electrical and Electronics Engineers",
number = "3",

}

Modeling and analysis of grid harmonic distortion impact of aggregated DG inverters. / Wang, Fei; Duarte, J.L.; Hendrix, M.A.M.; Ribeiro, P.F.

In: IEEE Transactions on Power Electronics, Vol. 26, No. 3, 2011, p. 786-797.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Modeling and analysis of grid harmonic distortion impact of aggregated DG inverters

AU - Wang, Fei

AU - Duarte, J.L.

AU - Hendrix, M.A.M.

AU - Ribeiro, P.F.

PY - 2011

Y1 - 2011

N2 - This paper proposes an impedance-based analytical method for modeling and analysis of harmonic interactions between the grid and aggregated distributed generation (DG) inverters. The root cause of harmonic interaction/resonance problems is the impedance-network quasi-resonance between the effective output impedance of the inverter and the equivalent grid impedance at the connection point. Starting with the output impedance modeling of an inverter, a Norton model of the inverter is derived. Comparing with the switching model and the average model of the inverter, simulation results show the effectiveness of the model. This paper proposes that impedance limits should be specified and used as an extra design constraint for DG inverters in order to minimize the harmonic distortion impact on the grid. Assuming the impedance models of individual inverters and local loads within a distribution grid are known, especially in the case of new grids under construction, harmonic interactions between the grid and a certain number of DG inverters can be preliminarily estimated.

AB - This paper proposes an impedance-based analytical method for modeling and analysis of harmonic interactions between the grid and aggregated distributed generation (DG) inverters. The root cause of harmonic interaction/resonance problems is the impedance-network quasi-resonance between the effective output impedance of the inverter and the equivalent grid impedance at the connection point. Starting with the output impedance modeling of an inverter, a Norton model of the inverter is derived. Comparing with the switching model and the average model of the inverter, simulation results show the effectiveness of the model. This paper proposes that impedance limits should be specified and used as an extra design constraint for DG inverters in order to minimize the harmonic distortion impact on the grid. Assuming the impedance models of individual inverters and local loads within a distribution grid are known, especially in the case of new grids under construction, harmonic interactions between the grid and a certain number of DG inverters can be preliminarily estimated.

U2 - 10.1109/TPEL.2010.2091286

DO - 10.1109/TPEL.2010.2091286

M3 - Article

VL - 26

SP - 786

EP - 797

JO - IEEE Transactions on Power Electronics

JF - IEEE Transactions on Power Electronics

SN - 0885-8993

IS - 3

ER -