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November 15, 2023
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Proceedings Paper
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Energy Harvesting Comparison and Analysis in 1000V and 1500V Grid-Connected PV Systems

Publicated to:Ecce 2020 - Ieee Energy Conversion Congress And Exposition. 116-123 - 2020-01-01 (), DOI: 10.1109/ECCE44975.2020.9236312

Authors: Stevanovic B; Serban E; Vasic M; Ordonez M; Cobreces S; Alou P

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Abstract

Different architectures of 1000VDC and 1500VDC grid-connected PV systems for different AC grid voltage levels are compared in this paper with respect to energy harvesting during one year period. One stage architecture is compared with two two-stage concepts already presented in literature and industry - "mini-boost"and "string-optimizer". An idea of mini-boost considers a booster rated for a portion of the nominal power that operates only in the cases when MPP voltage is lower than minimum allowed DC bus. Otherwise it is by-passed and the inverter operates as in one-stage architecture. Another concept, "string-optimizer"can be considered as a buck-boost topology that controls DC bus voltage at the minimum value. In this way range of energy harvesting operation is increased and performances of the inverter are improved. However, buck-boost topology is less efficient than a boost and, additionally in this case, it needs to be rated for the full system power. All the analysis and comparison is based on comprehensive PV panel and converter loss models, real enviromental conditions measurements and real and commercially available circuit components. Experimental verification of the employed models is provided by the measurements conducted on 22kW grid-tied solar inverter. © 2020 IEEE.

Keywords

Circuit componentsComparison and analysisConverter lossDc-bus voltagesElectric invertersEnergy harvestingExperimental verificationGrid connected pv systemHarvesting operationsPhotovoltaic cellsSolar inverterTopology

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

From a relative perspective, and based on the normalized impact indicator calculated from the Field Citation Ratio (FCR) of the Dimensions source, it yields a value of: 2.23, which indicates that, compared to works in the same discipline and in the same year of publication, it ranks as a work cited above average. (source consulted: Dimensions Jul 2025)

Specifically, and according to different indexing agencies, this work has accumulated citations as of 2025-07-05, the following number of citations:

  • Scopus: 10

Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2025-07-05:

  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 11 (PlumX).

Leadership analysis of institutional authors

This work has been carried out with international collaboration, specifically with researchers from: Canada.

There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (STEVANOVIC, BRANISLAV) and Last Author (STEVANOVIC, BRANISLAV).