Mitigation of voltage and current harmonics in grid-connected microgrids

Mehdi Savaghebi*, Josep M. Guerrero, Alireza Jalilian, Juan C. Vasquez

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Abstrakt

In this paper, a control approach is proposed for selective compensation of main voltage and current harmonics in grid-connected microgrids. Two modes of compensation are considered, i.e. voltage and current compensation modes. In the case that sensitive loads are connected to the point of common coupling (PCC), voltage compensation mode is activated in order to provide a high voltage quality at PCC. Otherwise, grid current harmonics are mitigated (current compensation mode) in order to avoid excessive harmonic supply by the grid. In both modes, harmonic compensation is achieved through proper control of distributed generators (DGs) interface converters. The compensation effort of each harmonic is shared considering the corresponding current harmonic supplied by the DGs. The control system of each DG comprises harmonic compensator, power controllers, voltage and current controllers and virtual impedance loop. Virtual impedance is considered at fundamental frequency to enhance power control and also at harmonic frequencies to improve the nonlinear load sharing among DGs. Simulation results are presented to demonstrate the effectiveness of the proposed method.

OriginalsprogEngelsk
TitelProceedings - 2012 IEEE International Symposium on Industrial Electronics, ISIE 2012
Publikationsdato15. aug. 2012
Sider1610-1615
Artikelnummer6237331
ISBN (Trykt)9781467301589
DOI
StatusUdgivet - 15. aug. 2012
Udgivet eksterntJa
Begivenhed21st IEEE International Symposium on Industrial Electronics, ISIE 2012 - Hangzhou, Kina
Varighed: 28. maj 201231. maj 2012

Konference

Konference21st IEEE International Symposium on Industrial Electronics, ISIE 2012
LandKina
ByHangzhou
Periode28/05/201231/05/2012
SponsorThe Institute of Electrical and Electronics Engineers (IEEE), IEEE Industrial Electronics Society, Zhejiang University
NavnIEEE International Symposium on Industrial Electronics

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Citationsformater

Savaghebi, M., Guerrero, J. M., Jalilian, A., & Vasquez, J. C. (2012). Mitigation of voltage and current harmonics in grid-connected microgrids. I Proceedings - 2012 IEEE International Symposium on Industrial Electronics, ISIE 2012 (s. 1610-1615). [6237331] IEEE International Symposium on Industrial Electronics https://doi.org/10.1109/ISIE.2012.6237331