A Series Interharmonic Filter for Cascaded H-bridge PV Inverters

Yiwei Pan*, Ariya Sangwongwanich, Yongheng Yang, Frede Blaabjerg

*Kontaktforfatter

Publikation: Bidrag til bog/antologi/rapport/konference proceedingKonferenceartikel i proceedingForskningpeer review

1 Citationer (Scopus)

Abstrakt

Interharmonics have become one of the challenging issues in photovoltaic (PV) systems. One of the reasons for interharmonic emissions is the maximum power point tracking (MPPT) control. In cascaded H-bridge (CHB) PV inverters, due to the potential superposition of the MPPT perturbations of individual PV cells, a higher oscillation may appear in the equivalent total DC voltage, leading to large interharmonics in the grid. To mitigate the interharmonics from CHB PV inverters, a series interharmonic filter is proposed in this paper, which employs a series H-bridge cell as an active filter. With the proposed control, the equivalent DC voltage can be maintained oscillation-free, thereby suppressing the interharmonics. In practice, the interharmonic filter can be either an additional unit, or a redundant cell in the cascaded PV converter. Simulations and experimental results have validated the effectiveness of the proposed solution.
OriginalsprogEngelsk
TitelProceeding of 2020 IEEE Energy Conversion Congress and Exposition (ECCE)
Antal sider6
ForlagIEEE Press
Publikationsdatookt. 2020
Sider341-346
Artikelnummer9235745
ISBN (Trykt)978-1-7281-5827-3
ISBN (Elektronisk)978-1-7281-5826-6
DOI
StatusUdgivet - okt. 2020
BegivenhedIEEE Energy Conversion Congress and Exposition ECCE,2020 -
Varighed: 1 sep. 2020 → …

Konference

KonferenceIEEE Energy Conversion Congress and Exposition ECCE,2020
Periode01/09/2020 → …
NavnIEEE Energy Conversion Congress and Exposition
ISSN2329-3721

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