SEPIC - Sistemes Electrònics de Potència i de Control
La investigació bàsica es centra en l´estudi del control no lineal de sistemes, i específicament en el control no lineal de convertidors i sistemes de l'electrònica de potència. Les estratègies de control desenvolupades es realitzen per mitjà de controladors electrònics, mitjançant solucions analògiques o digitals basades en processadors digitals de senyal. La investigació també està orientada envers la implementació de microcircuits específics per al control de convertidors. Aquest grup d'investigació està especialitzat en diverses aplicacions de l'electrònica de potència, com ara els sistemes distribuits de alimentació, sistemes d'alimentació ininterrompuda, filtres actius, convertidors multinivells, etc.. L'equip d'investigació transfereix els resultats de la seva investigació a les empreses, mitjançant projectes i contractes.
Our research is oriented toward non-linear control systems, and particularly toward non-linear control of power electronics converters and systems. Controllers are implemented by means of analog or digital solutions, using in this case, digital signal processors. Our research group is specialized in Uninterruptible Power Systems, Active Filters, Multilevel Converters, etc. Our research results are transferred to private companies, and supported by contract.
Our research is oriented toward non-linear control systems, and particularly toward non-linear control of power electronics converters and systems. Controllers are implemented by means of analog or digital solutions, using in this case, digital signal processors. Our research group is specialized in Uninterruptible Power Systems, Active Filters, Multilevel Converters, etc. Our research results are transferred to private companies, and supported by contract.
Col·leccions
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Articles de revista [62]
Enviaments recents
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Voltage support experimental analysis of a low-voltage ride-through strategy applied to grid-connected distributed inverters
(2018-07-27)
Article
Accés obertIn recent decades, different control strategies have been designed for the increasing integration of distributed generation systems. These systems, most of them based on renewable energies, use electronic converters to ... -
Power calculation algorithm for single-phase droop-operated inverters considering nonlinear loads
(2018)
Comunicació de congrés
Accés obertThe average active and reactive powers, Pav and Qav, are crucial parameters that have to be calculated when sharing common loads between parallelized droop-operated single-phase inverters. However, low-pass filters (LPF) ... -
Power calculation algorithm for single-phase droop-operated inverters considering nonlinear loads and unsing n-order SOGI filtering
(2018)
Comunicació de congrés
Accés obertThe average active and reactive powers, P and Q, are crucial parameters that have to be calculated when sharing common loads between parallelized droop-operated single-phase inverters. However, the droop method algorithm ... -
Local secondary control for inverter-based islanded microgrids with accurate active-power sharing under high load conditions
(Institute of Electrical and Electronics Engineers (IEEE), 2018-06-13)
Article
Accés obertLocal secondary control has been successfully used to regulate the frequency of inverterbased islanded microgrids without using communications. In this scenario, noticeable steady-state deviations have been observed in ... -
A new LPF-based grid frequency estimation for the SOGI filter with improved harmonic rejection
(2018)
Comunicació de congrés
Accés obertThis paper proposes a new method for the estimation of the grid voltage frequency using a low-pass filter (LPF) approach. The estimated frequency is used to tune a second order generalized integrator (SOGI) filter commonly ... -
Modeling and sliding mode control for three-phase active power filters using vector operation technique
(Institute of Electrical and Electronics Engineers (IEEE), 2018-01-23)
Article
Accés restringit per política de l'editorialTraditionally, the vector operation technique has been used to control three-phase converters using one cycle control. In this paper, a three-phase active power filter large-signal model with vector operation technique in ... -
Analysis of the effect of clock drifts on frequency regulation and power sharing in inverter-based islanded microgrids
(2018-02-12)
Article
Accés restringit per política de l'editorialLocal hardware clocks in physically distributed computation devices hardly ever agree because clocks drift apart and the drift can be different for each device. This paper analyses the effect that local clock drifts have ... -
Performance comparison of grid-faulty control schemes for inverter-based industrial microgrids
(2017-12-11)
Article
Accés obert -
Control strategy for distribution generation inverters to maximize the voltage support in the lowest phase during voltage sags
(Institute of Electrical and Electronics Engineers (IEEE), 2017-08-07)
Article
Accés obertIEEE Voltage sags are considered one of the worst perturbations in power systems. Distributed generation power facilities are allowed to disconnect from the grid during grid faults whenever the voltage is below a certain ... -
Assessing the 2014 retroactive regulatory framework applied to the concentrating solar power systems in Spain
(2018-02-15)
Article
Accés obertThe RD 413/2014 new economic and regulatory framework applied to the concentrating solar power plants (CSPP) in Spain has been here analysed and its new remuneration scheme has been formulated, becoming evident its high ... -
Analysis, design and implementation of a DC/DC boost resonant-inductor converter with sliding-mode control
(2018-03-20)
Article
Accés obertModern DC-DC resonant converters are normally build around a voltage-source series-resonant converter. This study aims to facilitate the practical use of current-source parallel-resonant converters due to their outstanding ... -
Positive and Negative Sequence Control Strategies to Maximize the Voltage Support in Resistive-Inductive Grids During Grid Faults
(2017-07-27)
Article
Accés obertGrid faults are one of the most severe perturbations in power systems. During these extreme disturbances, the reliability of the grid is compromised and the risk of a power outage is increased. To prevent this issue, ...
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