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.
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Articles de revista [87]
Recent Submissions
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A comprehensive model for the design of a microgrid under regulatory constraints using synthetical data generation and stochastic optimization
(2020-10-26)
Article
Open AccessAs renewable energy installation costs decrease and environmentally-friendly policies are progressively applied in many countries, distributed generation has emerged as the new archetype of energy generation and distribution. ... -
HIL-assessed fast and accurate single-phase power calculation algorithm for voltage source inverters supplying to high total demand distortion nonlinear loads
(2020-10-07)
Article
Open AccessThe dynamic performance of the local control of single-phase voltage source inverters (VSIs) can be degraded when supplying to nonlinear loads (NLLs) in microgrids. When this control is based on the droop principles, a ... -
Imbalance-voltage mitigation in an inverter-based distributed generation system using a minimum current-based control strategy
(Institute of Electrical and Electronics Engineers (IEEE), 2020-06)
Article
Open AccessVoltage imbalances are one of the most severe challenges in electrical networks, which negatively affect their loads and other connected equipment. This paper proposes a voltage support control strategy to mitigate the ... -
Enabling grid-feeding converters with a dissonant-resonant controller for negative-sequence voltage elimination
(Institute of Electrical and Electronics Engineers (IEEE), 2020-04-01)
Article
Open AccessThe mitigation of the adverse effects of voltage unbalance in equipment and power quality can be performed by the power electronic converters that interface distributed generators to the grid. Inspired in a resonant ... -
Optimal tuning of the control parameters of an inverter-based microgrid using the methodology of design of experiments
(2020-10-01)
Article
Open AccessThe design of the control system in an inverter-based microgrid is a challenging problem due to the large number of parameters involved. Different optimisation methods based on obtaining an approximated mathematical model ... -
Renewable energy auction prices: near subsidy-free?
(2020-07-01)
Article
Open AccessThe latest trend of low record bid prices in renewable energy auctions has raised concerns on the effective deployment of the winning projects. A survey of recent auction data from several countries, technologies and ... -
New sogi-fll grid frequency monitoring with a finite state machine approach for better response in the face of voltage sag and swell faults
(2020-04-01)
Article
Open AccessThe SOGI-FLL (Second-Order Generalized Integrator–Frequency-Locked Loop) is a well-known and simple adaptive filter that allows for estimating the parameters of grid voltage with a small computational burden. However, the ... -
Negative-sequence voltage elimination for distributed generators in grid-feeding operation mode
(2020-07-24)
Article
Restricted access - publisher's policyA major concern of the power quality in distributed systems is related to the mitigation of voltage imbalances. This function can be implemented directly in the control system of the distributed generation power converters ... -
A new control strategy for three-phase shunt active power filters based on FIR prediction
(Institute of Electrical and Electronics Engineers (IEEE), 2020-08-07)
Article
Restricted access - publisher's policyA new discrete-time control strategy for three-phase three-wire shunt active power filters (APF) is presented, based on a mathematical model in the stationary reference frame. It involves a feedback-linearization-type ... -
Droop-free hierarchical control strategy for inverter-based AC microgrids
(2020-05-20)
Article
Open AccessHierarchical schemes are widely used for the design of inverter-based AC microgrids control strategies. To ensure a reliable operation, hierarchical control must consider together all the functionalities that allow the ... -
Aggregated economic analysis of the brazilian electricity distribution companies using a regulated market economic model
(Springer, 2020-03-29)
Article
Restricted access - publisher's policyWhile most of the research work in the field of electrical engineering was aroused by the scientific challenges to be overcome, it is fair to recognize that the practical importance of engineering hinges on its economic ...
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