Exploració per autor "Miret Tomàs, Jaume"
Ara es mostren els items 52-71 de 129
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Local frequency restoration for droop-controlled parallel inverters in islanded microgrids
(2018-01-01)
Article
Accés obertIn islanded microgrids, voltage source inverters working in parallel are expected to provide regulation of the local frequency while granting active power sharing. This paper presents a local control approach at each ... -
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 ... -
Maximum current injection method for grid-forming inverters in an islanded microgrid subject to short circuits
(2023-02-03)
Article
Accés obertIn islanded microgrids, when a short circuit or a sudden overload occurs, it provokes an abrupt increment in the currents supplied by the generation nodes, which feed the load collaboratively. This is particularly challenging ... -
Mitigation of voltage sags with electric-vehicle based microgrids in large parking lots
(2022)
Text en actes de congrés
Accés restringit per política de l'editorialThis paper presents a real-time control strategy for electric-vehicle based microgrids to mitigate voltage sags in large parking lots. It is programmed into the digital processors of the battery chargers and consists on ... -
Mixing local and distributed reactive power control for balancing inverters' effort in grid-connected photovoltaic systems
(2013)
Text en actes de congrés
Accés restringit per política de l'editorialReactive power control methods have been proven to be a successful technique for maintaining voltages of photovoltaic (PV) distributed generators (DG) within the admissible limits without enforcing to reduce the production ... -
Mixing local and distributed reactive power control for balancing inverters’ effort in grid-connected photovoltaic systems
(Institute of Electrical and Electronics Engineers (IEEE), 2013)
Comunicació de congrés
Accés restringit per política de l'editorialReactive power control methods have been proven to be a successful technique for maintaining voltages of photo-voltaic (PV) distributed generators (DG) within the admissible limits without enforcing to reduce the production ... -
Model-based active damping control for three-phase voltage source inverters with LCL filter
(2016-09-02)
Article
Accés obertThis paper presents a robust model-based active damping control in natural frame for a three-phase voltage source inverter with LCL filter. The presence of the LCL filter complicates the design of the control scheme, ... -
Model-based control for a three-phase shunt active power filter
(Institute of Electrical and Electronics Engineers (IEEE), 2016-03-10)
Article
Accés obertThis paper presents a robust model-based control in natural frame for a three-phase shunt active power filter. For the proposed control method a linear converter model is deduced. Then, this model is used in a Kalman ... -
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 ... -
Multi-layer active power and frequency control strategy for industrial microgrids
(Institute of Electrical and Electronics Engineers (IEEE), 2017)
Text en actes de congrés
Accés restringit per política de l'editorialIndustrial microgrids require control strategies that guarantee high reliability and power quality. In this paper a multi-layer active power and frequency control strategy for industrial microgrids is presented. It is ... -
Negative-sequence voltage elimination for distributed generators in grid-feeding operation mode
(2020-07-24)
Article
Accés obertA 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 ... -
On the optimal reactive power control for grid-connected photovoltaic distributed generation systems
(2015)
Comunicació de congrés
Accés restringit per política de l'editorialThe increasing deployment of distributed generation (DG) such as photovoltaic panels (PV) connected to low-voltage (LV) grids is becoming a common trend in urban areas. The advances of information and communication technology ... -
Optimal tuning of the control parameters of an inverter-based microgrid using the methodology of design of experiments
(2020-10-01)
Article
Accés obertThe 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 ... -
Optimal voltage-support control for distributed generation inverters in RL grid-faulty networks
(Institute of Electrical and Electronics Engineers (IEEE), 2019-10-30)
Article
Accés obertDuring grid faults, the stability and reliability of the network are compromised, and the risk of a widespread disconnection of distributed generation power facilities is increased. Distributed generation inverters must ... -
Optimizing voltage support using electric vehicles in an islanded microgrid under voltage sags
(2022)
Text en actes de congrés
Accés restringit per política de l'editorialThe number of electric vehicles connected to the grid is growing constantly due to environmental and regulatory issues. Using these connected vehicles as distributed generators is a promising future functionality, known ... -
Performance analysis of frequency restoration for parallel voltage source inverters connected with a realistic communication channel
(2015)
Comunicació de congrés
Accés restringit per política de l'editorialA topic of interest within the microgrid (MG) community is to achieve accurate sharing of active and reactive power among voltage source inverters (VSI) working in parallel while keeping the voltage frequency and amplitude ... -
Performance evaluation of secondary control policies with respect to digital communications properties in inverter-based islanded microgrids
(Institute of Electrical and Electronics Engineers (IEEE), 2016-09-12)
Article
Accés obertA key challenge for inverted-based microgrids working in islanded mode is to maintain their own frequency and voltage to a certain reference values while regulating the active and reactive power among distributed generators ... -
PI-based controller for low-power distributed inverters to maximise reactive current injection while avoiding over voltage during voltage sags
(2018-10-25)
Article
Accés obertIn the recently deregulated power system scenario, the growing number of distributed generation sources should be considered as an opportunity to improve stability and power quality along the grid. To make progress in this ... -
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, ... -
Positive sequence voltage control, full negative sequence cancellation and current limitation for static compensators
(Institute of Electrical and Electronics Engineers (IEEE), 2021-12)
Article
Accés obertThis paper presents a control scheme in the stationary reference frame for Static Synchronous Compensators that provides three features: 1) regulation of the positive sequence voltage to the nominal value, 2) full cancellation ...
