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Raymundo E. Torres-Olguin

Research Scientist

Raymundo E. Torres-Olguin

Research Scientist

Raymundo E. Torres-Olguin
Phone: 952 16 754
Email:
Department: Energy Systems
Office: Trondheim

Publications and responsibilities

Publication
https://www.sintef.no/en/publications/publication/1895516/

In this paper, a large-scale grid-connected PV system along with a battery energy system is analyzed for unbalanced power generation in the PV system. The system is connected to the medium-voltage grid through a Cascaded H-Bridge converter where each cell of the converter has individual PV and an...

Authors Subhasis Nayak Anandarup Das Raymundo E. Torres-Olguin Salvatore D'Arco Giuseppe Guidi
Year 2021
Type Academic chapter/article/Conference paper
Publication
https://www.sintef.no/en/publications/publication/1902915/

Due to increasing environmental burden and other cost related reasons, the transmission network is undergoing major change globally. One way to utilize transmission corridors more efficiently is to have several three-phase systems in the same tower. This can be multiple AC and DC circuits or AC...

Authors Murari Mohan Saha Hans Kristian Hoidalen Raymundo E. Torres-Olguin
Year 2021
Type Academic chapter/article/Conference paper
Publication
https://www.sintef.no/en/publications/publication/1901289/

Power quality is an important concern for practical microgrid (MG) applications due to the widespread use of non-linear loads, and it is characterised by the implicit trade-off between voltage quality in the MG nodes and harmonic current sharing between distributed generators (DGs). Active and...

Authors Fredrik T. B. W. Göthner Javier Roldan-Pérez Raymundo E. Torres-Olguin Ole-Morten Midtgård
Year 2021
Type Academic article
Publication
https://www.sintef.no/en/publications/publication/1891162/

This article presents a vector fitting (VF) algorithmbased robust circuit and controller parameters identification method for grid-connected voltage source converters (VSCs). The dq-domain impedance frequency responses (IFRs) of the VSCs are first measured using frequency scanning method, based...

Authors Weihua Zhou Raymundo E. Torres-Olguin Fredrik T. B. W. Göthner Jef Beerten Mehdi Zadeh Yanbo Wang Zhe Chen
Year 2021
Type Academic article
Publication
https://www.sintef.no/en/publications/publication/1871114/

...—Droop control is the most common approach for controlling microgrids (MGs) and interfacing distributed generators (DGs) due to its inherent power-sharing characteristics and low dependence on communication systems. However, the stability of MGs operated with this control paradigm is sensitive to...

Authors Fredrik T. B. W. Göthner Raymundo E. Torres-Olguin Javier Roldan-Pérez Atle Rygg Ole-Morten Midtgård
Year 2021
Type Academic article
Publication
https://www.sintef.no/en/publications/publication/1862239/

Existing impedance-based stability criterion (IBSC) for electromagnetic stability assessment of multiple-grid-connected-inverter (GCI)-based power systems suffers from several limitations. First, global stability feature is hard to be obtained if Nyquist-criterion-based IBSC is used. Second, heavy...

Authors Weihua Zhou Raymundo E. Torres-Olguin Mehdi Zadeh Behrooz Bahrani Yanbo Wang Zhe Chen
Year 2020
Type Academic article
Publication
https://www.sintef.no/en/publications/publication/1820007/

This paper presents a modified dq impedance model of the three-phase voltage source grid-connected inverter (GCI)-grid system considering coupling effect between GCI part and grid part for small-signal stability analysis. Steady-state terminal voltage and current information of the GCI part which...

Authors Weihua Zhou Yanbo Wang Raymundo E. Torres-Olguin Dong Liu Zhe Chen
Year 2020
Type Academic chapter/article/Conference paper
Publication
https://www.sintef.no/en/publications/publication/1846182/

Complex space vector and complex transfer function theory is used to theoretically establish the dq impedance model of current-controlled grid-connected inverter (GCI) with considering phase-locked loop (PLL) dynamics, where contributions of current control loop and PLL on dq impedance...

Authors Weihua Zhou Yanbo Wang Raymundo E. Torres-Olguin Zhe Chen
Year 2020
Type Academic chapter/article/Conference paper
Publication
https://www.sintef.no/en/publications/publication/1846185/

Phase-locked loop (PLL) is commonly used to synchronize the phase angle of the injected current of voltage source grid-connected inverters (GCIs) with that of the voltage at point of common coupling. However, the quadrature-axis component of the dq impedance model of the GCIs presents negative...

Authors Weihua Zhou Yanbo Wang Raymundo E. Torres-Olguin Zhe Chen
Year 2020
Type Academic chapter/article/Conference paper
Publication
https://www.sintef.no/en/publications/publication/1841358/

This study presents a dq impedance-decoupled network modelling method of offshore wind power plant (OWPP) for stability analysis. DQ impedance frequency responses of grid-connected inverters (GCIs) and long transmission cables (LTCs) are first measured by frequency scanning method, which are...

Authors Weihua Zhou Raymundo E. Torres-Olguin Yanbo Wang Zhe Chen
Year 2020
Type Academic article