State-Space Model of Quasi-Z-Source Inverter-PV Systems for Transient Dynamics Studies and Network Stability Assessment

Autor: Joaquin Pedra, Luis Sainz, Juan Jose Mesas, Lluis Monjo

Publikováno v: Repositori Universitat Jaume I
Universitat Jaume I
Energies, Vol 14, Iss 4150, p 4150 (2021)
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Energies; Volume 14; Issue 14; Pages: 4150

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 AC networks. Simultaneously

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ac137488174297b97992dcd4bf3c6e5e
https://doi.org/10.3390/en14144150

Initialization of DFIG wind turbines with a phasor-based approach

Autor: Joaquin Pedra, Alejandro Rolan

Publikováno v: UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)

The objective of this paper is to propose a simple approach to solve the steady state of a wind turbine (WT) equipped with a doubly-fed induction generator (DFIG) which can be used to initialize dynamic studies of the machine. The idea is to model th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::16d19fd9aade9f668e3a06a72859c716
https://hdl.handle.net/2117/190872

Testing of three‐phase equipment under voltage sags

Autor: Lluis Monjo, Joaquin Pedra, Alejandro Rolan, Santiago Bogarra, F. Corcoles

Publikováno v: UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Repositori Universitat Jaume I
Universitat Jaume I
Recercat. Dipósit de la Recerca de Catalunya

This paper provides insight into the testing of three-phase equipment exposed to voltage sags caused by faults. The voltage sag recovers at the fault-current zeros, leading to a ‘discrete’ voltage recovery, that is, the fault is cleared in differ

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::14486c3dc7c8c5b3e50738c8fa539b26
https://doi.org/10.1049/iet-epa.2014.0258

Electrical resonance instability study in traction systems

Autor: Juan Jose Mesas, Lluis Monjo, Joaquin Pedra, Marc Cheah-Mane, Luis Sainz

Publikováno v: UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Recercat. Dipósit de la Recerca de Catalunya
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Traction system stability can be affected by the interaction between the traction load and resonances in the railway traction grid. This paper presents an electrical resonance instability study applied to traction systems. The influence of traction s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bb745d83fc619caf4f0a4b01855ed524
https://doi.org/10.1109/pq.2016.7724102

Study of voltage sag impact on LED lamp consumed currents

Autor: Juan Jose Mesas, Luis Sainz, Joaquin Pedra, Ll. Monjo

Publikováno v: 2016 International Symposium on Fundamentals of Electrical Engineering (ISFEE).

The use of light emitting diode (LED) lamps in utility distribution systems is spreading because of the implementation of energy saving policies. These devices may malfunction and consume current peaks due to voltage sags, which are one of the most s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ed31d1ab5ffc78fd0556af988269f8e9
https://doi.org/10.1109/isfee.2016.7803234