Frequency Domain Stability Assessment of Photovoltaic Power Generation Systems with Quasi-Z-Source Inverters
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Title
Frequency Domain Stability Assessment of Photovoltaic Power Generation Systems with Quasi-Z-Source InvertersDate
2021-09-01Publisher
European Association for the Development of Renewable Energies, Environment and Power Quality (EA4EPQ)ISSN
2172-038XBibliographic citation
Sainz, L.; Monjo, L. Frequency domain stability assessment of photovoltaic power generation systems with quasi-z-source inverters. "Renewable energy and power quality journal", 1 Setembre 2021, vol. 19, p. 160-165Type
info:eu-repo/semantics/conferenceObjectVersion
info:eu-repo/semantics/publishedVersionSubject
Abstract
Photovoltaic power generation systems are one of
the main renewable power sources, and quasi-Z-source inverters
are becoming powerful devices to integrate these systems in AC
grids. However, stability issues due ... [+]
Photovoltaic power generation systems are one of
the main renewable power sources, and quasi-Z-source inverters
are becoming powerful devices to integrate these systems in AC
grids. However, stability issues due to the damping behaviour of
converters must be considered. There are several studies in this
direction but instability concerns are not completely solved yet.
This paper contributes with a procedure for the stability
assessment of photovoltaic power generation systems with quasiZ-source inverters in the frequency domain. The study is based
on the small-signal averaged model of the system expressed in
the s-domain and the stability criterion derived from the
frequency characteristics of the state-space matrix. The influence
of the photovoltaic power generation system operating point on
stability is studied by the proposed procedure. Eigenvalue
analysis and PSCAD/EMTDC simulations are also performed to
validate the obtained results. [-]
Description
19th International Conference on Renewable Energies and Power Quality (ICREPQ’21)
Almeria (Spain), 28th to 30th July 2021
Is part of
RE&PQJ, Volume No.19, September 2021Funder Name
Ministerio de Ciencia, Innovación y Universidades
Project code
RTI2018-095720-B-C33
Rights
info:eu-repo/semantics/openAccess