Document
type: Class

Leakage-ground currents compensation in a transformerless HB-NPC topology using a DC-link-tied LC filter for photovoltaic applications
type: Document
type: Entity
estado: published
freetext keyword: Common-mode model; Leakage-ground current; Multilevel photovoltaic inverter; Transformerless inverter Bandpass filters; Electric inverters; Passive filters; Common-mode model; Dc-link; Ground currents; H-bridges; LC filter; Leakage-ground current; Multilevel photovoltaic inverte; Multilevels; Photovoltaic inverters; Transformerless inverters; Bridge circuits
origen: scopus
related by: authorship_66186
abstract: In this paper, a solution to mitigate the leakage-ground currents in a grid-tied H-bridge neutral-point clamped inverter is presented. This solution consists in splitting the LC filter capacitor and connecting each capacitor to a DC-link terminal. The proposal is referred to as the DC-link-tied LC output filter. Out of this hardware modification, it is not necessary to increase the number of switches nor design a new modulation scheme. Furthermore, a formal analysis is provided based on the common-mode model describing the role of this particular connection of the output LC filter on the minimization of the leakage-ground current. In addition, a closed loop control strategy has been implemented to allow testing the prototype connected to the electrical grid. The mitigation of the leakage-ground currents has been evaluated under this condition as well. To validate the proposed circuit modification, numerical simulations and experimental tests have been performed in a 1 kW laboratory prototype of the H-bridge neutral-point clamped inverter with the DC-link-tied LC filter solution. IEEE
doi: 10.1109/JESTPE.2021.3132239
type: Continuant
most specific type: Article
most specific type: Document
type: Article
has publication venue: IEEE Journal of Emerging and Selected Topics in Power Electronics
type: Generically Dependent Continuant
related by: authorship_66189
type: Information Content Entity
related by: authorship_66192
related by: authorship_66188
date time value: article date 9323
related by: authorship_66191
type: Thing
crisid: 9323
related by: authorship_66187
e iscopus: 2-s2.0-85120562453
related by: authorship_66190

Continuant
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individual
rights: termsOfUse
date: 2026-08-27T05:37:00
publisher: vivo
type: Document
label: RDF description of Leakage-ground currents compensation in a transformerless HB-NPC topology using a DC-link-tied LC filter for photovoltaic applications - http://orbis.uaslp.mx/vivo/individual/scopus9322

Article
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Information Content Entity
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IEEE Journal of Emerging and Selected Topics in Power Electronics
type: Thing
publication venue for: Leakage-ground currents compensation in a transformerless HB-NPC topology using a DC-link-tied LC filter for photovoltaic applications
type: Generically Dependent Continuant
type: Continuant
type: Journal
type: Entity
type: Periodical
type: Document
type: Collection
type: Information Content Entity