Plug-in identification method for an LCL filter of a grid converter

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en Koppinen, Jussi Kukkola, Jarno Hinkkanen, Marko 2018-02-09T09:59:27Z 2018-02-09T09:59:27Z 2018-04-02
dc.identifier.citation Koppinen , J , Kukkola , J & Hinkkanen , M 2017 , ' Plug-in identification method for an LCL filter of a grid converter ' IEEE Transactions on Industrial Electronics . DOI: 10.1109/TIE.2017.2787546 en
dc.identifier.issn 0278-0046
dc.identifier.other PURE UUID: 71737d1d-9fa9-4010-bc0e-dc4eb1b652d5
dc.identifier.other PURE ITEMURL:
dc.identifier.other PURE FILEURL:
dc.description.abstract This paper proposes a method for estimating the two inductances and the capacitance of an LCL filter, connected between the converter and the grid. Only the DC-bus voltage and converter phase currents need to be measured. An excitation signal is fed into the converter voltage reference. The fundamental and selected harmonic components are removed from the stored identification data to prevent biases in the parameter estimates. The parameters of the hold-equivalent discrete-time model are estimated recursively. The inductance and capacitance estimates are calculated from the estimated discrete-time parameters using the corresponding closed-form model. The proposed method can be added to existing converter control algorithms. It can provide the parameter estimates for the converter control. Further, it can be run occasionally during the normal operation in order to obtain an updated grid inductance estimate. Experimental results show that the proposed method yields very good parameter estimates and that it can also detect the changes in the grid inductance. en
dc.format.extent 10
dc.format.mimetype application/pdf
dc.language.iso en en
dc.relation.ispartofseries IEEE Transactions on Industrial Electronics en
dc.rights openAccess en
dc.subject.other 213 Electronic, automation and communications engineering, electronics en
dc.title Plug-in identification method for an LCL filter of a grid converter en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Department of Electrical Engineering and Automation
dc.contributor.department ABB Oy Drives
dc.subject.keyword converters
dc.subject.keyword parameter estimation
dc.subject.keyword power filters
dc.subject.keyword 213 Electronic, automation and communications engineering, electronics
dc.identifier.urn URN:NBN:fi:aalto-201802091358
dc.identifier.doi 10.1109/TIE.2017.2787546
dc.type.version acceptedVersion

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