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Arc tracking control in insulation systems for aeronautic applications: challenges, opportunities, and research needs
(Multidisciplinary Digital Publishing Institute (MDPI), 2020-03-16)
Article.
Accés obert
Article.
Accés obert
Next generation aircrafts will use more electrical power to reduce weight, fuel consumption, system complexity and greenhouse gas emissions. However, new failure modes and challenges arise related to the required voltage ...
State-space model of quasi-z-source inverter-PV systems for transient dynamics studies and network stability assessment
(2021-07-09)
Article.
Accés obert
Article.
Accés obert
Photovoltaic (PV) power systems are increasingly being used as renewable power generation sources. Quasi-Z-source inverters (qZSI) are a recent, high-potential technology that can be used to integrate PV power systems into ...
Overcurrent protection based on ANNs for smart distribution networks with grid-connected VSIs
(2020-12-16)
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Article.
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Recently, the global concern for protection coordination is growing with the impact of distributed generators connected to medium voltage distribution system. Effective protection strategies need to be developed in order ...
Frequency domain stability assessment of photovoltaic power generation systems with quasi-z-source inverters
(2021-09-01)
Article.
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Article.
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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 ...
Quasi-z-source inverter-based photovoltaic power system modeling for grid stability studies
(2021-01-19)
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Article.
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Quasi-Z-source inverters (qZSIs) are becoming a powerful power conversion technology in photovoltaic (PV) power systems because they allow energy power conversion in a single stage operation. However, they can cause system ...
Stability assessment for multi-infeed grid-connected VSCs modeled in the admittance matrix form
(2021-09-01)
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Article.
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The increasing use of power electronics converters to integrate renewable energy sources has been a subject of concern due to the resonance oscillatory phenomena caused by their interaction with poorly damped AC networks. ...
State-space model of qZSI based PMSG-WPGSs for transient dynamic studies
(2021-09)
Comunicació de congrés.
Accés restringit per política de l'editorial
Comunicació de congrés.
Accés restringit per política de l'editorial
The use of permanent magnet synchronous generators (PMSGs) with full-scale back-to-back converters is rising as a common option in wind power generation systems (WPGSs). An efficient grid integration of PMSG-WPGSs is ...
Voltage sag influence on controlled three-phase grid-connected inverters according to the Spanish grid code
(2020-02-03)
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Article.
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To ensure the safe operation of the grid, there are some requirements to be taken into consideration to connect power converters. During abnormal conditions – e.g. during voltage sags –, the control of the converters is a ...
Explore courses: virtual vs face-to-face
(2020)
Text en actes de congrés.
Accés restringit per política de l'editorial
Text en actes de congrés.
Accés restringit per política de l'editorial
The “EXPLORATORI” is a project from the Universitat Politècnica de Catalunya (UPC) and the Berga Town Council. The main objective of the project is to bring science closer to secondary school students, their teachers and ...
Experimental study of the corona performance of aged sand-cast substation connectors
(2020-06-01)
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Article.
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Substation connectors, like many other high-voltage products, are tested once manufactured. However, the corona behavior of aged specimens can differ from that exhibited by newer ones, thus generating detrimental technical ...