An Active Compensator to Counteract the Effects of Grid Impedance in Grid-Connected Inverter with an LCL Filter

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

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Author(s)

Related Research Unit(s)

Detail(s)

Original languageEnglish
Title of host publication10th Anniversary ECCE 2018, IEEE ENERGY CONVERSION CONGRESS & EXPO
PublisherInstitute of Electrical and Electronics Engineers, Inc.
Pages5579-5585
ISBN (electronic)9781479973125
ISBN (print)9781479973118
Publication statusPublished - Sept 2018

Publication series

NameIEEE Energy Conversion Congress and Exposition
ISSN (Print)2329-3721

Conference

Title10th Annual IEEE Energy Conversion Congress and Exposition (ECCE 2018)
PlaceUnited States
CityPortland
Period23 - 27 September 2018

Link(s)

DOI

DOI
Check@CityULib
Link to Scopus https://www.scopus.com/record/display.uri?eid=2-s2.0-85060282845&origin=recordpage
Permanent Link https://scholars.cityu.edu.hk/en/publications/publication(50cf04b3-9976-4c1e-abf9-5b08b8a6a9f7).html

Abstract

To improve the stability of grid-connected inverter with an LCL filter, existing approaches are to reshape the inverter output impedance by damping filter resonance with passive or active damping methods. However, the interaction between the inverter and the grid still challenges the system performance especially when the grid becomes weak. This paper proposes an active compensator to counteract the effects of grid impedance on the stability of grid-connected inverter with an LCL filter. It is composed of dual unit PCC voltage feedforward mechanisms, wherein one is integrated into the inverter control, and the other is combined with a bidirectional dc/ac voltage source converter (B-VSC) in series at the filter capacitor branch. The power loss of the B-VSC is small and thereby the system efficiency is not sacrificed. To validate its effectiveness, a single-phase inverter prototype with the proposed compensator has been built.

Research Area(s)

  • inverter, LCL filter, grid impedance cancellator, active damping, DESIGN, VOLTAGE

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Publication fingerprints text

100
Grid Impedance Engineering
100
Inverter Engineering
100
Grid-Connected Inve... Engineering
66
Ac Voltage Engineering
66
Voltage Source Conv... Engineering
33
Feedforward Engineering
33
Systems Performance Engineering
33
Power Loss Engineering
33
Output Impedance Engineering
33
System Efficiency Engineering
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Citation Format(s)

[ RIS ] [ BibTeX ]
An Active Compensator to Counteract the Effects of Grid Impedance in Grid-Connected Inverter with an LCL Filter. / He, Yuanbin; Hang, Lijun; Xie, Xiaogao et al.
10th Anniversary ECCE 2018, IEEE ENERGY CONVERSION CONGRESS & EXPO. Institute of Electrical and Electronics Engineers, Inc., 2018. p. 5579-5585 8557364 (IEEE Energy Conversion Congress and Exposition).

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review