Series Harmonic Voltage Cancellator for Mitigating Effect of Grid Impedance on the Stability of Microgrids

Research output: Chapters, Conference Papers, Creative and Literary Works (RGC: 12, 32, 41, 45)32_Refereed conference paper (with ISBN/ISSN)

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Detail(s)

Original languageEnglish
Title of host publicationThe ECCE 2019 proceedings
PublisherIEEE
Pages4447-4454
ISBN (Electronic)978-1-7281-0395-2
Publication statusPublished - Sep 2019

Publication series

NameIEEE Energy Conversion Congress and Exposition, ECCE

Conference

Title11th Annual IEEE Energy Conversion Congress and Exposition (ECCE 2019)
PlaceUnited States
CityBaltimore
Period29 September - 3 October 2019

Abstract

A series harmonic voltage cancellator (SHVC) that can mitigate the effect of grid impedance on the stability of microgrid having a plurality of grid-connected inverters (GCIs) is proposed. The concept is based on using a series harmonic voltage source to counteract the voltage across the grid impedance, so that the equivalent grid impedance observed by the inverters is reduced. As the SHVC handles harmonic power only, its volt-ampere (VA) rating is significantly lower than the power rating of the entire distributed generation (DG) system. It is realized by an inverter with fixed-frequency predictive control and wide bandwidth. A SHVC has been built and evaluated on a system with two GCIs. Experimental results are favourably compared with theoretical predictions.

Citation Format(s)

Series Harmonic Voltage Cancellator for Mitigating Effect of Grid Impedance on the Stability of Microgrids. / Lai, Chun-Tak; Chung, Henry Shu-Hung; Wu, Weimin.

The ECCE 2019 proceedings. IEEE, 2019. p. 4447-4454 8912756 (IEEE Energy Conversion Congress and Exposition, ECCE).

Research output: Chapters, Conference Papers, Creative and Literary Works (RGC: 12, 32, 41, 45)32_Refereed conference paper (with ISBN/ISSN)