Browsing by Author "Pedra Durán, Joaquim"
Now showing items 1-20 of 38
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A unified analytical model for characterization of cable faults in VSC DC systems
Mesas García, Juan José; Monjo Mur, Lluís; Sainz Sapera, Luis; Pedra Durán, Joaquim (2015)
Conference report
Open Access -
An appropriate index to assess the global cancellation level of the harmonic currents consumed by a set of single-phase uncontrolled rectifiers and a set of fluorescent lamps
Mesas García, Juan José; Sainz Sapera, Luis; Monjo Mur, Lluís; Pedra Durán, Joaquim (2022-06-13)
Article
Open AccessAn in-depth study of harmonic current reduction in European commercial buildings due to the harmonic cancellation effect when a set of single-phase uncontrolled rectifiers and a set of fluorescent lamps are connected at ... -
Behaviour of the doubly fed induction generator exposed to unsymmetrical voltage sags
Rolán Blanco, Alejandro; Córcoles López, Felipe; Pedra Durán, Joaquim (2012-09)
Article
Restricted access - publisher's policyThis study analyses the dynamic behaviour of the doubly fed induction generator exposed to unsymmetrical voltage sags, providing insights into wind turbine fault ride-through capability. The sags are assumed to be caused ... -
Cable fault characterization in VSC DC systems
Mesas García, Juan José; Monjo Mur, Lluís; Sainz Sapera, Luis; Pedra Durán, Joaquim (2016)
Conference lecture
Restricted access - publisher's policy -
Circuitos monofásicos y trifásicos
Pedra Durán, Joaquim (Edicions UPC, 1999)
Book
Restricted access to the UPC academic communityEste texto está orientado a los estudiantes de las distintas especialidades de la titulación de Ingeniería Industrial. En él se cubre una parte de la teoría de circuitos correspondiente a los circuitos eléctricos que se ... -
Comparison of simplified models for voltage-source-inverter-fed adjustable-speed drive during voltage sags when the during-event continue mode of operation is active
Bogarra Rodríguez, Santiago; Monjo Mur, Lluís; Saura Perisé, Jaime; Córcoles López, Felipe; Pedra Durán, Joaquim (2014-11-13)
Article
Restricted access - publisher's policyThree simplified models for adjustable-speed drives are compared with measurements on an actual drive where the inverter control strategy remains unaltered during the event (also known as continue mode of operation) to ... -
Comparison of small-signal admittance-based models of doubly-fed induction generators
Pedra Durán, Joaquim; Sainz Sapera, Luis; Monjo Mur, Lluís (2023-02)
Article
Restricted access - publisher's policyThis paper reviews and compares the main doubly-fed induction generator (DFIG) models for stability assessment in the literature by PSCAD/EMTDC simulation. The main contribution of the paper is a detailed study on small- ... -
DC Admittance Model of VSCs for Stability Studies in VSC-HVDC Systems
Pedra Durán, Joaquim; Sainz Sapera, Luis; Monjo Mur, Lluís (2023-07-01)
Article
Open AccessHigh-voltage direct current (HVDC) systems linked to AC grids with converters are promising energy transmission systems. These systems present complex AC- and DC-side dynamic interactions. Impedance-based stability studies ... -
Detailed study of DFIG-based wind turbines to overcome the most severe grid faults
Rolán Blanco, Alejandro; Pedra Durán, Joaquim; Córcoles López, Felipe (2014-11-01)
Article
Restricted access - publisher's policyThis paper studies the effects of voltage sags caused by faults on doubly-fed induction generators to overcome grid faults. A wide range of sag duration and depth values is considered. It is observed that sag duration ... -
Discrete fault-clearing instant influence on the simulation of voltage-source-inverter-fed adjustable-speed drives subjected to voltage sags
Córcoles López, Felipe; Bogarra Rodríguez, Santiago; Pedra Durán, Joaquim; Luna Alloza, Álvaro (2011-05)
Article
Restricted access - publisher's policyThis study analyses the influence of modelling sags with discrete fault-clearing instants on the behaviour of adjustablespeed drives (ASDs) subjected to sags caused by faults. The effects are compared with those of sags ... -
Doubly fed induction generator subject to symmetrical voltage sags
Rolán Blanco, Alejandro; Córcoles López, Felipe; Pedra Durán, Joaquim (2011-12)
Article
Restricted access - publisher's policyThe aim of this paper is to analyze the dynamic behavior of the doubly fed induction generator (DFIG) subject to symmetrical voltage sags caused by three-phase faults. A simple control algorithm is considered and assumed ... -
Doubly fed induction generator-based variable-speed wind turbine: proposal of a simplified model under a faulty grid with short-duration faults
Rolán Blanco, Alejandro; Pedra Durán, Joaquim (2019-08)
Article
Open AccessThe aim of this study is to provide a simplified model of a variable-speed wind turbine (VSWT) with the technology of a doubly-fed induction generator (DFIG) which operates under faulty grid conditions. A simplified model ... -
Effect of wind turbine converter control on wind power plant harmonic response and resonances
Sainz Sapera, Luis; Monjo Mur, Lluís; Pedra Durán, Joaquim; Cheah Mañé, Marc; Liang, Jun; Gomis Bellmunt, Oriol (2017-02-01)
Article
Restricted access - publisher's policyWind turbine harmonic emissions due to power electronics are a well-known power quality concern in wind power plants (WPPs). This problem may be increased by resonances because they amplify harmonic distortion around ... -
Electrical resonance instability study in traction systems
Sainz Sapera, Luis; Monjo Mur, Lluís; Mesas García, Juan José; Pedra Durán, Joaquim; Cheah Mañé, Marc (Institute of Electrical and Electronics Engineers (IEEE), 2016)
Conference report
Restricted access - publisher's policyTraction 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. ... -
Electrical resonance instability study in wind power plants
Sainz Sapera, Luis; Mesas García, Juan José; Monjo Mur, Lluís; Pedra Durán, Joaquim; Cheah Mañé, Marc (Institute of Electrical and Electronics Engineers (IEEE), 2016)
Conference report
Restricted access - publisher's policyWind power plant stability can be affected by the interaction between the wind turbine and the resonances in the collector grid. This paper presents an electrical resonance instability study applied to wind power plants. The ... -
Impact of short-circuit ratio on control parameter settings of DFIG wind turbines
Pedra Durán, Joaquim; Sainz Sapera, Luis; Monjo Mur, Lluís (2024-04-11)
Article
Open AccessThis work deals with doubly fed induction generator (DFIG) modeling and stability when connected to weak AC grids. A detailed state-space model that includes the phase-locked loop (PLL) is developed. This work aims to ... -
Impact of voltage sags on DC bus voltage in unipolar LVDC systems
Monjo Mur, Lluís; Mesas García, Juan José; Sainz Sapera, Luis; Saura Perisé, Jaime; Pedra Durán, Joaquim (2015)
Conference report
Open Access -
Initialization of DFIG wind turbines with a phasor-based approach
Rolán Blanco, Alejandro; Pedra Durán, Joaquim (2019-03)
Article
Open AccessThe 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 ... -
Model of aeronautical ground lighting system transformers
lomvarte, daniel; Monjo Mur, Lluís; Sainz Sapera, Luis; Pedra Durán, Joaquim (2015-03-02)
Article
Open AccessAirport ground lighting (AGL) systems provide visual reference to aircrafts during airport operations. In AGL systems, constant current regulators feed a beacon circuit supplied through isolation transformers. Component ... -
Model of quasi-Z-source inverter-based PV power systems for stability studies of multi-terminal AC grid-connected PV power systems
Monjo Mur, Lluís; Sainz Sapera, Luis; Pedra Durán, Joaquim (Elsevier, 2024-01)
Article
Open AccessPhotovoltaic (PV) power systems are becoming one of the most popular green power systems. Power converters are used in these systems. Among them, quasi-Z-source inverters (qZSIs) are currently on the rise. However, ...