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Microgrids/nanogrids of prosumers must be able to adapt to new business opportunities related to energy trading. Therefore, highly accepted hierarchical control strategies should be modified to allow deliberate energy interchange among prosumers, even when the microgrid they are integrated in, operates islanded. This is the main contribution of this paper, as energy exchange between prosumers is rarely addressed when they are islanded from the main grid. This work proposes a comprehensive hierarchical control strategy for a multibus nanogrid of prosumers, each of them having photovoltaic generation, battery energy storage systems and loads, in such a way that different voltage and power setpoints for each prosumer allow such energy interchange. Power flow inside the nanogrid is controlled to guarantee the technical feasibility of the obtained setpoints. The proposed control strategy is defined and experimentally validated in both islanded and grid-connected modes, by means of a laboratory-scale prototype. In addition, a smooth transition between the two modes is demonstrated. An adequate capability of the power converters to follow setpoints is proved, with acceptable transient behavior.
Eva González-Romera; Carlos Roncero-Clemente; Fermín Barrero-González; María Isabel Milanés-Montero; Enrique Romero-Cadaval. A Comprehensive Control Strategy for Multibus Nanogrids with Power Exchange between Prosumers. IEEE Access 2021, 9, 1 -1.
AMA StyleEva González-Romera, Carlos Roncero-Clemente, Fermín Barrero-González, María Isabel Milanés-Montero, Enrique Romero-Cadaval. A Comprehensive Control Strategy for Multibus Nanogrids with Power Exchange between Prosumers. IEEE Access. 2021; 9 ():1-1.
Chicago/Turabian StyleEva González-Romera; Carlos Roncero-Clemente; Fermín Barrero-González; María Isabel Milanés-Montero; Enrique Romero-Cadaval. 2021. "A Comprehensive Control Strategy for Multibus Nanogrids with Power Exchange between Prosumers." IEEE Access 9, no. : 1-1.
Regarding the control of micro- and nanogrids, LC- or LCL-filtered power inverters (acting as interfaces with distributed energy resources such as photovoltaic or wind) commonly perform as grid-forming or grid-supporting units to maintain both the frequency and voltage within pre-set standards. Nevertheless, these power inverters are assumed to be connected at the same point of common coupling directly or via radial feeders; thus, the voltage references are the same for each parallel power inverter, thus requiring a virtual impedance loop. In addition, classic power sharing techniques comply with their individual power rates, and circulating currents among distributed generators are not considered. Under these circumstances, energy trading among prosumers and peer-to-peer contracts is not feasible in autonomous AC micro- and nanogrid operations. This paper proposes a reformulated power flow problem, adapted to autonomous droop-controlled AC microgrids, to be used as a secondary control layer. The entire hierarchical control is implemented and experimentally validated in a laboratory-scale nanogrid with energy storage systems, photovoltaic generators and power converters. The obtained results demonstrate the proper performance of the proposed approach, with successful operation of primary and inner controllers.
Carlos Roncero-Clemente; Eva Gonzalez-Romera; Fermin Barrero-Gonzalez; Maria Isabel Milanes-Montero; Enrique Romero-Cadaval. Power-Flow-Based Secondary Control for Autonomous Droop-Controlled AC Nanogrids With Peer-to-Peer Energy Trading. IEEE Access 2021, 9, 22339 -22350.
AMA StyleCarlos Roncero-Clemente, Eva Gonzalez-Romera, Fermin Barrero-Gonzalez, Maria Isabel Milanes-Montero, Enrique Romero-Cadaval. Power-Flow-Based Secondary Control for Autonomous Droop-Controlled AC Nanogrids With Peer-to-Peer Energy Trading. IEEE Access. 2021; 9 ():22339-22350.
Chicago/Turabian StyleCarlos Roncero-Clemente; Eva Gonzalez-Romera; Fermin Barrero-Gonzalez; Maria Isabel Milanes-Montero; Enrique Romero-Cadaval. 2021. "Power-Flow-Based Secondary Control for Autonomous Droop-Controlled AC Nanogrids With Peer-to-Peer Energy Trading." IEEE Access 9, no. : 22339-22350.
Since most power electronics used in photovoltaic (PV) inverters at commercial and industrial facilities exhibit behavior as non-linear loads from the grid side, these high-power demand installations are expected to have a major impact on the network’s power quality. In an attempt to facilitate their integration into the distribution grid, this paper presents a comprehensive control strategy for Quasi-Z Source T-Type PV inverters inside a facility, which performs active and reactive power control, and harmonic and imbalance compensation at expenses of the spare inverter power capacity. Unlike other approaches, the one proposed here operates properly under distorted and unbalanced grid voltages. The electrical network structure inside a commercial and industrial facility is considered, analyzing the operation of the proposed strategy on three-phase PV inverters. The power topology used has voltage boosting ability, which eliminates the requirement for both an additional DC-DC converter and/or a step-up transformer commonly used in PV inverter systems. The proposed strategy performance is demonstrated on a 50 kW converter model under a disturbed grid environment and changing load conditions.
Fermín Barrero-González; Carlos Roncero-Clemente; María Isabel Milanés-Montero; Eva González-Romera; Enrique Romero-Cadaval; Oleksandr Husev. Quasi-Z Source T-type Power Converter for PV Based Commercial and Industrial Nanogrids with Active Functions Strategy. Electronics 2020, 9, 1233 .
AMA StyleFermín Barrero-González, Carlos Roncero-Clemente, María Isabel Milanés-Montero, Eva González-Romera, Enrique Romero-Cadaval, Oleksandr Husev. Quasi-Z Source T-type Power Converter for PV Based Commercial and Industrial Nanogrids with Active Functions Strategy. Electronics. 2020; 9 (8):1233.
Chicago/Turabian StyleFermín Barrero-González; Carlos Roncero-Clemente; María Isabel Milanés-Montero; Eva González-Romera; Enrique Romero-Cadaval; Oleksandr Husev. 2020. "Quasi-Z Source T-type Power Converter for PV Based Commercial and Industrial Nanogrids with Active Functions Strategy." Electronics 9, no. 8: 1233.
Energy efficiency and consumers’ role in the energy system are among the strategic research topics in power systems these days. Smart grids (SG) and, specifically, microgrids, are key tools for these purposes. This paper presents a three-stage strategy for energy management in a prosumer nanogrid. Firstly, energy monitoring is performed and time-space compression is applied as a tool for forecasting energy resources and power quality (PQ) indices; secondly, demand is managed, taking advantage of smart appliances (SA) to reduce the electricity bill; finally, energy storage systems (ESS) are also managed to better match the forecasted generation of each prosumer. Results show how these strategies can be coordinated to contribute to energy management in the prosumer nanogrid. A simulation test is included, which proves how effectively the prosumers’ power converters track the power setpoints obtained from the proposed strategy.
Eva González-Romera; Enrique Romero-Cadaval; Joaquín Garrido-Zafra; Olivia Florencias-Oliveros; Mercedes Ruiz-Cortés; Antonio Moreno-Munoz; Juan-José González-De-La-Rosa. Demand and Storage Management in a Prosumer Nanogrid Based on Energy Forecasting. Electronics 2020, 9, 363 .
AMA StyleEva González-Romera, Enrique Romero-Cadaval, Joaquín Garrido-Zafra, Olivia Florencias-Oliveros, Mercedes Ruiz-Cortés, Antonio Moreno-Munoz, Juan-José González-De-La-Rosa. Demand and Storage Management in a Prosumer Nanogrid Based on Energy Forecasting. Electronics. 2020; 9 (2):363.
Chicago/Turabian StyleEva González-Romera; Enrique Romero-Cadaval; Joaquín Garrido-Zafra; Olivia Florencias-Oliveros; Mercedes Ruiz-Cortés; Antonio Moreno-Munoz; Juan-José González-De-La-Rosa. 2020. "Demand and Storage Management in a Prosumer Nanogrid Based on Energy Forecasting." Electronics 9, no. 2: 363.
It is usual in literature that power sharing among grid-forming sources of an isolated microgrid obeys their energy rating, instead of economic agreements between stakeholders, and circulating energy among them is usually avoided. However, these energy interchanges make strong sense and classical power sharing methods must be reformulated in the context of prosumer-based microgrids. This paper proposes a secondary control method for a prosumer-based low-voltage nanogrid that allows for energy interchange between prosumers, where storage systems, together with PV generators, are the controllable grid-forming sources. A power flow technique adapted to islanded microgrids is used for secondary control algorithm and the whole hierarchical control strategy for the prosumer converter is simulated and validated. This hierarchical control consists of three stages: tertiary control plans the energy interchange among prosumers, secondary obtains different voltage and power setpoints for each of the grid-forming sources, and, finally, primary control guarantees stable voltage and frequency values within the nanogrid with droop rules. Inner control loops for the power converter are also defined to track setpoints and assure stable performance. Simulation tests are carried out, which prove the stability of the proposed methods and the accuracy of the setpoint tracking.
Eva González-Romera; Enrique Romero-Cadaval; Carlos Roncero-Clemente; Mercedes Ruiz-Cortés; Fermín Barrero-González; María-Isabel Milanés Montero; Antonio Moreno-Muñoz. Secondary Control for Storage Power Converters in Isolated Nanogrids to Allow Peer-to-Peer Power Sharing. Electronics 2020, 9, 140 .
AMA StyleEva González-Romera, Enrique Romero-Cadaval, Carlos Roncero-Clemente, Mercedes Ruiz-Cortés, Fermín Barrero-González, María-Isabel Milanés Montero, Antonio Moreno-Muñoz. Secondary Control for Storage Power Converters in Isolated Nanogrids to Allow Peer-to-Peer Power Sharing. Electronics. 2020; 9 (1):140.
Chicago/Turabian StyleEva González-Romera; Enrique Romero-Cadaval; Carlos Roncero-Clemente; Mercedes Ruiz-Cortés; Fermín Barrero-González; María-Isabel Milanés Montero; Antonio Moreno-Muñoz. 2020. "Secondary Control for Storage Power Converters in Isolated Nanogrids to Allow Peer-to-Peer Power Sharing." Electronics 9, no. 1: 140.
Based on the assumption that vehicles served by petrol stations will be replaced by Electric Vehicles (EV) in the future, EV public charging station facilities, with off-board fast chargers, will be progressively built. The power demand of these installations is expected to cause great impact on the grid, not only in terms of peak power demanded but also in terms of power quality, because most battery chargers behave as non-linear loads. This paper presents the proposal of a novel comprehensive global control strategy for the power electronic converters associated with bidirectional three-phase EV off-board fast chargers. The Charging Station facility Energy Management System (CS-EMS) sends to each individual fast charger the active and reactive power setpoints. Besides, in case the charger has available capacity, it is assigned to compensate a fraction of the harmonic current demanded by other loads at the charging facility. The proposed approach works well under distorted and unbalanced grid voltages. Its implementation results in improvement in the power quality of each fast charger, which contributes to improvement in the power quality at the charging station facility level, which can even provide ancillary services to the distribution network. Simulation tests are conducted, using a 100 kW power electronic converter model, under different load and grid conditions, to validate the effectiveness and the applicability of the proposed control strategy.
Fermín Barrero-González; María Isabel Milanés-Montero; Eva González-Romera; Enrique Romero-Cadaval; Carlos Roncero-Clemente. Control Strategy for Electric Vehicle Charging Station Power Converters with Active Functions. Energies 2019, 12, 3971 .
AMA StyleFermín Barrero-González, María Isabel Milanés-Montero, Eva González-Romera, Enrique Romero-Cadaval, Carlos Roncero-Clemente. Control Strategy for Electric Vehicle Charging Station Power Converters with Active Functions. Energies. 2019; 12 (20):3971.
Chicago/Turabian StyleFermín Barrero-González; María Isabel Milanés-Montero; Eva González-Romera; Enrique Romero-Cadaval; Carlos Roncero-Clemente. 2019. "Control Strategy for Electric Vehicle Charging Station Power Converters with Active Functions." Energies 12, no. 20: 3971.
The boost feature that characterizes Z-source and quasi-Z-source converters is usually achieved by means of a proper insertion of short-circuit states in the full DC-link. In this work, a novel pulse width modulation carrier-based strategy for a three-phase, three-level T-type, quasi-Z-source inverter is introduced, based on the addition of alternate short-circuits in the two halves of the DC-link bus. This technique achieves better performance, less electromagnetic interference, and lower harmonic distortion of the output line-to-line voltage compared to the traditional methods based on the full DC-link shoot-through. At the same time, generating the switching states is to easy implement. The proposed strategy permits the use of electronic devices with lower blocking voltage capability, thus improving converter reliability, size, and cost. The new method may be implemented in another multilevel inverter with an impedance-source network as well. A comprehensive simulation study is performed in order to validate the adopted method, with different inverter input voltages, which is taken as representative of a photovoltaic array. Comparisons are conducted with conventional strategy insertions using the same topology in order to show the improvements achieved.
Fermín Barrero-González; Carlos Roncero-Clemente; María Isabel Milanés-Montero; Eva González-Romera; Enrique Romero-Cadaval; Oleksandr Husev; V. Fernão Pires. Improvements on the Carrier-Based Control Method for a Three-Level T-Type, Quasi-Impedance-Source Inverter. Electronics 2019, 8, 677 .
AMA StyleFermín Barrero-González, Carlos Roncero-Clemente, María Isabel Milanés-Montero, Eva González-Romera, Enrique Romero-Cadaval, Oleksandr Husev, V. Fernão Pires. Improvements on the Carrier-Based Control Method for a Three-Level T-Type, Quasi-Impedance-Source Inverter. Electronics. 2019; 8 (6):677.
Chicago/Turabian StyleFermín Barrero-González; Carlos Roncero-Clemente; María Isabel Milanés-Montero; Eva González-Romera; Enrique Romero-Cadaval; Oleksandr Husev; V. Fernão Pires. 2019. "Improvements on the Carrier-Based Control Method for a Three-Level T-Type, Quasi-Impedance-Source Inverter." Electronics 8, no. 6: 677.
The proliferation of residential photovoltaic (PV) prosumers leads to detrimental impacts on the low-voltage (LV) distribution network operation such as reverse power flow, voltage fluctuations and voltage imbalances. This is due to the fact that the strategies for the PV inverters are usually designed to obtain the maximum energy from the panels. The most recent approach to these issues involves new inverter-based solutions. This paper proposes a novel comprehensive control strategy for the power electronic converters associated with PV installations to improve the operational performance of a four-wire LV distribution network. The objectives are to try to balance the currents demanded by consumers and to compensate the reactive power demanded by them at the expense of the remaining converters’ capacity. The strategy is implemented in each consumer installation, constituting a decentralized or distributed control and allowing its practical implementation based on local measurements. The algorithms were tested, in a yearly simulation horizon, on a typical Portuguese LV network to verify the impact of the high integration of the renewable energy sources in the network and the effectiveness and applicability of the proposed approach.
Fermín Barrero-González; Victor Fernão Pires; José L. Sousa; João F. Martins; María Isabel Milanés-Montero; Eva González-Romera; Enrique Romero-Cadaval. Photovoltaic Power Converter Management in Unbalanced Low Voltage Networks with Ancillary Services Support. Energies 2019, 12, 972 .
AMA StyleFermín Barrero-González, Victor Fernão Pires, José L. Sousa, João F. Martins, María Isabel Milanés-Montero, Eva González-Romera, Enrique Romero-Cadaval. Photovoltaic Power Converter Management in Unbalanced Low Voltage Networks with Ancillary Services Support. Energies. 2019; 12 (6):972.
Chicago/Turabian StyleFermín Barrero-González; Victor Fernão Pires; José L. Sousa; João F. Martins; María Isabel Milanés-Montero; Eva González-Romera; Enrique Romero-Cadaval. 2019. "Photovoltaic Power Converter Management in Unbalanced Low Voltage Networks with Ancillary Services Support." Energies 12, no. 6: 972.
Microgrids of prosumers are a trendy approach within the smart grid concept, as a way to increase distributed renewable energy penetration within power systems in an efficient and sustainable way. Single prosumer individual management has been previously discussed in literature, usually based on economic profit optimization. In this paper, two novel approaches are proposed: firstly, a different objective function, relative to the mismatch between generated and demanded power, is tested and compared to classical objective function based on energy price, by means of a genetic algorithm method; secondly, this optimization procedure is applied to batteries’ coordinated scheduling of all the prosumers composing a community, instead of single one, which better matches the microgrid concept. These approaches are tested on a microgrid with two household prosumers, in the context of Spanish regulation for self-consumption. Results show noticeably better performance of mismatch objective function and coordinated schedule, in terms of self-consumption and self-sufficiency rates, power and energy interchanges with the main grid, battery degradation and even economic benefits.
Eva González-Romera; Mercedes Ruiz-Cortés; María-Isabel Milanés-Montero; Fermín Barrero-González; Enrique Romero-Cadaval; Rui Amaral Lopes; João Martins. Advantages of Minimizing Energy Exchange Instead of Energy Cost in Prosumer Microgrids. Energies 2019, 12, 719 .
AMA StyleEva González-Romera, Mercedes Ruiz-Cortés, María-Isabel Milanés-Montero, Fermín Barrero-González, Enrique Romero-Cadaval, Rui Amaral Lopes, João Martins. Advantages of Minimizing Energy Exchange Instead of Energy Cost in Prosumer Microgrids. Energies. 2019; 12 (4):719.
Chicago/Turabian StyleEva González-Romera; Mercedes Ruiz-Cortés; María-Isabel Milanés-Montero; Fermín Barrero-González; Enrique Romero-Cadaval; Rui Amaral Lopes; João Martins. 2019. "Advantages of Minimizing Energy Exchange Instead of Energy Cost in Prosumer Microgrids." Energies 12, no. 4: 719.
Integration of renewable energy sources, active role of consumers and energy management systems are currently among research priorities in energy systems. This paper proposes an innovative coordinated energy scheduling for a microgrid of neighbor prosumers with different consumption patterns. All prosumers have photovoltaic generation systems, Li-ion batteries as energy storage systems and regular household loads. A genetic algorithm is used to schedule each prosumer's battery charge/discharge, with the aim of reducing energy exchange losses by minimizing the power in the point of interconnection of the microgrid with the main grid, with several advantages compared to classical optimization objectives, and without worsening battery lifespan degradation. Individual and coordinated strategies are compared and self-consumption and self-sufficiency of the prosumers' set are evaluated with the aim of showing the advantage of coordination. The paper concludes that coordinated operation can contribute to improve the exploitation of energy resources in the prosumer microgrid, reducing the amount of energy interchanged with the distribution grid by approximately 13%, and, at the same time, avoiding increasing the battery cycling and consequent degradation.
Mercedes Ruiz-Cortes; Eva Gonzalez-Romera; Rui Amaral-Lopes; Enrique Romero-Cadaval; João Martins; Maria Isabel Milanes-Montero; Fermin Barrero-Gonzalez. Optimal Charge/Discharge Scheduling of Batteries in Microgrids of Prosumers. IEEE Transactions on Energy Conversion 2018, 34, 468 -477.
AMA StyleMercedes Ruiz-Cortes, Eva Gonzalez-Romera, Rui Amaral-Lopes, Enrique Romero-Cadaval, João Martins, Maria Isabel Milanes-Montero, Fermin Barrero-Gonzalez. Optimal Charge/Discharge Scheduling of Batteries in Microgrids of Prosumers. IEEE Transactions on Energy Conversion. 2018; 34 (1):468-477.
Chicago/Turabian StyleMercedes Ruiz-Cortes; Eva Gonzalez-Romera; Rui Amaral-Lopes; Enrique Romero-Cadaval; João Martins; Maria Isabel Milanes-Montero; Fermin Barrero-Gonzalez. 2018. "Optimal Charge/Discharge Scheduling of Batteries in Microgrids of Prosumers." IEEE Transactions on Energy Conversion 34, no. 1: 468-477.
This work presents an energy management strategy based on scheduling battery operation in prosumer systems, according to forecast data available 24 hours in advance. The proposed method seeks to reach a beneficial compromise between prosumers and distribution grid operators, independently of specific economic context or technical regulations. An improvement to deal with forecast inaccuracy is carried out. Results demonstrate that it offers good properties regarding energy management, with a stored energy reserve estimation, battery lifetime preservation and self-consumption and self-sufficiency enhancement.
Mercedes Ruiz-Cortes; Eva Gonzalez-Romera; Rui Amaral Lopes; Enrique Romero-Cadaval; João Martins; Maria Isabel Milanes-Montero; Fermin Barreto-Gonzalez. Improved Forecasting-Based Battery Energy Management Strategy for Prosumer Systems. IECON 2018 - 44th Annual Conference of the IEEE Industrial Electronics Society 2018, 6077 -6082.
AMA StyleMercedes Ruiz-Cortes, Eva Gonzalez-Romera, Rui Amaral Lopes, Enrique Romero-Cadaval, João Martins, Maria Isabel Milanes-Montero, Fermin Barreto-Gonzalez. Improved Forecasting-Based Battery Energy Management Strategy for Prosumer Systems. IECON 2018 - 44th Annual Conference of the IEEE Industrial Electronics Society. 2018; ():6077-6082.
Chicago/Turabian StyleMercedes Ruiz-Cortes; Eva Gonzalez-Romera; Rui Amaral Lopes; Enrique Romero-Cadaval; João Martins; Maria Isabel Milanes-Montero; Fermin Barreto-Gonzalez. 2018. "Improved Forecasting-Based Battery Energy Management Strategy for Prosumer Systems." IECON 2018 - 44th Annual Conference of the IEEE Industrial Electronics Society , no. : 6077-6082.
Smart grids aim to dramatically change residential area energy systems by creating active grid interaction. Specifically, renewable energies will play a key role when it comes to handle Energy Storage Systems (ESS) at houses within a Smart Community. This paper presents a novel global control strategy for distributed micro-storage energy system. Each home receives the active and reactive power set- points from the Smart Community Energy Management System (SCEMS), providing energy resources to the community in function of the expected demand and production. Once SCEMS requirements are fulfilled, harmonic current components demanded by the household circuitry are injected according to the ESS available capacity. The proposed approach not only causes a local improvement in the power quality of the demanded current, but also contributes to the global power quality consumption of the community. Experimental tests are conducted using a prototype of the proposed ESS charger, validating the control strategies.
Maria Isabel Milanes-Montero; Fermin Barrero-Gonzalez; Jaime Pando-Acedo; Eva Gonzalez-Romera; Enrique Romero-Cadaval; Antonio Moreno-Munoz. Smart Community Electric Energy Micro-Storage Systems With Active Functions. IEEE Transactions on Industry Applications 2018, 54, 1975 -1982.
AMA StyleMaria Isabel Milanes-Montero, Fermin Barrero-Gonzalez, Jaime Pando-Acedo, Eva Gonzalez-Romera, Enrique Romero-Cadaval, Antonio Moreno-Munoz. Smart Community Electric Energy Micro-Storage Systems With Active Functions. IEEE Transactions on Industry Applications. 2018; 54 (3):1975-1982.
Chicago/Turabian StyleMaria Isabel Milanes-Montero; Fermin Barrero-Gonzalez; Jaime Pando-Acedo; Eva Gonzalez-Romera; Enrique Romero-Cadaval; Antonio Moreno-Munoz. 2018. "Smart Community Electric Energy Micro-Storage Systems With Active Functions." IEEE Transactions on Industry Applications 54, no. 3: 1975-1982.
The future of the grid includes distributed generation and smart grid technologies. Demand Side Management (DSM) systems will also be essential to achieve a high level of reliability and robustness in power systems. To do that, expanding the Advanced Metering Infrastructure (AMI) and Energy Management Systems (EMS) are necessary. The trend direction is towards the creation of energy resource hubs, such as the smart community concept. This paper presents a smart multiconverter system for residential/housing sector with a Hybrid Energy Storage System (HESS) consisting of supercapacitor and battery, and with local photovoltaic (PV) energy source integration. The device works as a distributed energy unit located in each house of the community, receiving active power set-points provided by a smart community EMS. This central EMS is responsible for managing the active energy flows between the electricity grid, renewable energy sources, storage equipment and loads existing in the community. The proposed multiconverter is responsible for complying with the reference active power set-points with proper power quality; guaranteeing that the local PV modules operate with a Maximum Power Point Tracking (MPPT) algorithm; and extending the lifetime of the battery thanks to a cooperative operation of the HESS. A simulation model has been developed in order to show the detailed operation of the system. Finally, a prototype of the multiconverter platform has been implemented and some experimental tests have been carried out to validate it.
Miguel Ángel Guerrero-Martínez; María Isabel Milanés-Montero; Fermín Barrero-González; Víctor Manuel Miñambres-Marcos; Enrique Romero-Cadaval; Eva Gonzalez-Romera. A Smart Power Electronic Multiconverter for the Residential Sector. Sensors 2017, 17, 1217 .
AMA StyleMiguel Ángel Guerrero-Martínez, María Isabel Milanés-Montero, Fermín Barrero-González, Víctor Manuel Miñambres-Marcos, Enrique Romero-Cadaval, Eva Gonzalez-Romera. A Smart Power Electronic Multiconverter for the Residential Sector. Sensors. 2017; 17 (6):1217.
Chicago/Turabian StyleMiguel Ángel Guerrero-Martínez; María Isabel Milanés-Montero; Fermín Barrero-González; Víctor Manuel Miñambres-Marcos; Enrique Romero-Cadaval; Eva Gonzalez-Romera. 2017. "A Smart Power Electronic Multiconverter for the Residential Sector." Sensors 17, no. 6: 1217.
In recent years, power systems have experimented a great development as a consequence of the apparition of the distributed generation. Renewable energy sources, active users and electric vehicles play a fundamental role in power systems, which has supposed a new topic research. In this scenario, the figure of prosumer has gained relevance due to the multiple advantages that they can contribute to improve the behavior of power systems and to achieve energy and cost savings. In particular, special attention is focus on photovoltaic (PV) arrays integrated in residential buildings with energy storage systems (ESSs), such as batteries or ultracapacitors (UCs) or even a combination of both in a hybrid energy storage system (HESS). This paper presents an energy management strategy to exchange energy between the batteries and the UCs that form a HESS installed with a PV array in a prosumer dwell in order to maintain its UC bank available to support the energy requirements during the most time possible.
Mercedes Ruiz-Cortés; E. Romero-Cadaval; Carlos Roncero Clemente; Fermin Barrero-Gonzalez; Eva González Romera. Energy management strategy to coordinate batteries and ultracapacitors of a hybrid energy storage system in a residential prosumer installation. 2017 International Young Engineers Forum (YEF-ECE) 2017, 30 -35.
AMA StyleMercedes Ruiz-Cortés, E. Romero-Cadaval, Carlos Roncero Clemente, Fermin Barrero-Gonzalez, Eva González Romera. Energy management strategy to coordinate batteries and ultracapacitors of a hybrid energy storage system in a residential prosumer installation. 2017 International Young Engineers Forum (YEF-ECE). 2017; ():30-35.
Chicago/Turabian StyleMercedes Ruiz-Cortés; E. Romero-Cadaval; Carlos Roncero Clemente; Fermin Barrero-Gonzalez; Eva González Romera. 2017. "Energy management strategy to coordinate batteries and ultracapacitors of a hybrid energy storage system in a residential prosumer installation." 2017 International Young Engineers Forum (YEF-ECE) , no. : 30-35.
This paper aims to provide control strategies for distributed micro-storage energy systems at the residential level to contribute to smart grid goals. A simulation model of an energy storage system (ESS) charger has been implemented to test these proposed control strategies. The smart community energy management system (SCEMS), acting as an aggregator of resources in the community according to the expected demand and production, sends to each individual home the active and reactive power set-points. Besides, in case the ESS has available capacity, once the SCEMS requirements are satisfied, it is used to absorb the harmonic current components demanded by the household circuitry. It allows a local improvement in the power quality of the demanded current, and thus contributes to the global power quality consumption of the community. Simulation results showing the operation of a local ESS at a home in a Smart Community are presented to validate the proposed control strategies.
Maria-Isabel Milanes-Montero; Fermin Barrero-Gonzalez; Jaime Pando-Acedo; Eva Gonzalez-Romera; Enrique Romero-Cadaval; Antonio Moreno-Munoz. Active, Reactive and Harmonic Control for Distributed Energy Micro-Storage Systems in Smart Communities Homes. Energies 2017, 10, 448 .
AMA StyleMaria-Isabel Milanes-Montero, Fermin Barrero-Gonzalez, Jaime Pando-Acedo, Eva Gonzalez-Romera, Enrique Romero-Cadaval, Antonio Moreno-Munoz. Active, Reactive and Harmonic Control for Distributed Energy Micro-Storage Systems in Smart Communities Homes. Energies. 2017; 10 (4):448.
Chicago/Turabian StyleMaria-Isabel Milanes-Montero; Fermin Barrero-Gonzalez; Jaime Pando-Acedo; Eva Gonzalez-Romera; Enrique Romero-Cadaval; Antonio Moreno-Munoz. 2017. "Active, Reactive and Harmonic Control for Distributed Energy Micro-Storage Systems in Smart Communities Homes." Energies 10, no. 4: 448.
In this line, this chapter aims to provide an analysis of distributed microstorage energy systems at the residential level to contribute to smart grid goals. The chapter is organized in five sections as follows: first an overview of micro-storage technologies, including the state of the art, is presented. It will also be shown the advantages when using different ESS unified in a hybrid energy storage system (HESS), achieving best parameters for specific applications than the ESS operating individually. The second section is devoted to the suitable topologies for the bi-directional electronic converter responsible for the flux between the micro-storage energy system located at home and the grid by means of the smart community energy management system (SCEMS). Afterwards, in the third section control strategies for the ESMS of the microstorage device are proposed, following different compensation objectives from the set-points provided by the SCEMS. Furthermore, these strategies will ensure at all times safety and will improve the efficiency and lifetime of the ESS. In the fourth section, the attention is paid to the power interfaces for the integration of ESS into the grid to adapt the requirements of distributed microstorage system in a smart community with high penetration of photovoltaic systems.
Maria Isabel Milanes-Montero Milanes-Montero; Fermin Barrero-Gonzalez Barrero-Gonzalez; Eva Gonzalez-Romera Gonzalez-Romera; Enrique Romero-Cadaval Romero-Cadaval. Distributed micro-storage systems at residential level in smart communities with high penetration of photovoltaic generation. Large Scale Grid Integration of Renewable Energy Sources 2017, 279 -313.
AMA StyleMaria Isabel Milanes-Montero Milanes-Montero, Fermin Barrero-Gonzalez Barrero-Gonzalez, Eva Gonzalez-Romera Gonzalez-Romera, Enrique Romero-Cadaval Romero-Cadaval. Distributed micro-storage systems at residential level in smart communities with high penetration of photovoltaic generation. Large Scale Grid Integration of Renewable Energy Sources. 2017; ():279-313.
Chicago/Turabian StyleMaria Isabel Milanes-Montero Milanes-Montero; Fermin Barrero-Gonzalez Barrero-Gonzalez; Eva Gonzalez-Romera Gonzalez-Romera; Enrique Romero-Cadaval Romero-Cadaval. 2017. "Distributed micro-storage systems at residential level in smart communities with high penetration of photovoltaic generation." Large Scale Grid Integration of Renewable Energy Sources , no. : 279-313.
This paper proposes a comparative analysis of control strategies for active power flow between a smart community grid and an energy storage unit located in a house of the community, which is connected to the grid by a bidirectional charger. These strategies are applied to the bidirectional DC/DC converter of the charger and include an improved precharge stage of the storage unit, based on the gain scheduling method. The gain-scheduled controller aims to extend the lifetime of the battery reducing the stress and peak current values. The control strategies are compared and validated by using an experimental prototype of the charger. Experimental results are included.
Jaime Pando-Acedo; Maria Isabel Milanes-Montero; E. Romero-Cadaval; M.A. Guerrero-Martinez; Fermin Barrero-Gonzalez; Eva González Romera. Active power flow strategies for bidirectional Energy Storage Units in smart communities. 2017 11th IEEE International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG) 2017, 614 -619.
AMA StyleJaime Pando-Acedo, Maria Isabel Milanes-Montero, E. Romero-Cadaval, M.A. Guerrero-Martinez, Fermin Barrero-Gonzalez, Eva González Romera. Active power flow strategies for bidirectional Energy Storage Units in smart communities. 2017 11th IEEE International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG). 2017; ():614-619.
Chicago/Turabian StyleJaime Pando-Acedo; Maria Isabel Milanes-Montero; E. Romero-Cadaval; M.A. Guerrero-Martinez; Fermin Barrero-Gonzalez; Eva González Romera. 2017. "Active power flow strategies for bidirectional Energy Storage Units in smart communities." 2017 11th IEEE International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG) , no. : 614-619.
In recent years, the significant growth of the number of inverters connected to the grid as a consequence of the development of renewable energy sources, especially photovoltaic modules, has caused that focus is on innovative inverter circuitries. This paper presents a comparison between two different configurations of three-phase three-level inverters: the neutral-point-clamped and the T-type. Both topologies have been combined with a quasi-Z-source network in order to obtain the straightforward benefits that it offers, by using a modulation technique which introduces shoot-through states. Conventional carrier based modulation techniques have been modified in order to optimize the switching pattern for the T-type circuit. Moreover, a comprehensive simulation study is performed in order to state if T-type topology could be considered as a good alternative to neutral-point-clamped topology.
Mercedes Ruiz-Cortés; E. Romero-Cadaval; Carlos Roncero Clemente; Eva González Romera; O. Husev. Evaluation of losses in three-level neutral-point-clamped and T-type quasi-Z-source inverters with modified carrier based modulation method. 2017 11th IEEE International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG) 2017, 638 -643.
AMA StyleMercedes Ruiz-Cortés, E. Romero-Cadaval, Carlos Roncero Clemente, Eva González Romera, O. Husev. Evaluation of losses in three-level neutral-point-clamped and T-type quasi-Z-source inverters with modified carrier based modulation method. 2017 11th IEEE International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG). 2017; ():638-643.
Chicago/Turabian StyleMercedes Ruiz-Cortés; E. Romero-Cadaval; Carlos Roncero Clemente; Eva González Romera; O. Husev. 2017. "Evaluation of losses in three-level neutral-point-clamped and T-type quasi-Z-source inverters with modified carrier based modulation method." 2017 11th IEEE International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG) , no. : 638-643.
This paper aims to provide control strategies for distributed micro-storage energy systems at the residential level to contribute to smart grid goals. The operation of local Energy Storage Systems (ESS) at homes in a Smart Community with distributed generation based of renewable energies is analyzed by simulation. Each individual home receive the active and reactive power set-points from the Smart Community Energy Management System (SCEMS), acting as an aggregator of resources in the community according to the expected demand and production. Besides, in case the ESS has got available capacity, once the SCEMS requirements are satisfied, it is used to inject the harmonic current components demanded by the household circuitry. It allows a local improvement in the power quality of the demanded current, and so contributes to the global power quality consumption of the community. Simulation results showing the operation of the local ESS are presented to validate the proposed control strategies.
Maria Isabel Milanes-Montero; Eva González Romera; Fermin Barrero-Gonzalez; Enrique Romero-Cadaval; Antonio Moreno-Munoz. Local energy micro-storage systems in smart communities with active, reactive and harmonic control. 2016 IEEE 16th International Conference on Environment and Electrical Engineering (EEEIC) 2016, 1 -5.
AMA StyleMaria Isabel Milanes-Montero, Eva González Romera, Fermin Barrero-Gonzalez, Enrique Romero-Cadaval, Antonio Moreno-Munoz. Local energy micro-storage systems in smart communities with active, reactive and harmonic control. 2016 IEEE 16th International Conference on Environment and Electrical Engineering (EEEIC). 2016; ():1-5.
Chicago/Turabian StyleMaria Isabel Milanes-Montero; Eva González Romera; Fermin Barrero-Gonzalez; Enrique Romero-Cadaval; Antonio Moreno-Munoz. 2016. "Local energy micro-storage systems in smart communities with active, reactive and harmonic control." 2016 IEEE 16th International Conference on Environment and Electrical Engineering (EEEIC) , no. : 1-5.
This contribution presents a smart power electronics injection system for grid-connected photovoltaic energy resources. The developed converter can not only inject the maximum active power as a typical inverter does, but also provide the active functions the Smart Grid scenario needs, including reactive power reference tracking for compensating purposes, node voltage regulation for helping the grid when there are undervoltages or overvoltages, grid harmonic distortion elimination due to non-linear loads and active power reference tracking with the addition of an energy storage system, based on ultracapacitors, for managing the discontinuities of the photovoltaic energy. The topology is composed by an inverter that interfaces the photovoltaic array with the grid and a bidirectional DC-DC converter for the energy storage. The control system is based on d-q current control theory guided by a reference power point tracking method. Simulation test bench has been developed with the objective of testing the control system.
Fermin Barrero-Gonzalez; Victor Minambres-Marcos; Miguel Guerrero-Martinez; Enrique Romero-Cadaval; Maria Isabel Milanes-Montero; Eva González Romera. Photovoltaic inverter with smart grid functions. 2016 IEEE 16th International Conference on Environment and Electrical Engineering (EEEIC) 2016, 1 -6.
AMA StyleFermin Barrero-Gonzalez, Victor Minambres-Marcos, Miguel Guerrero-Martinez, Enrique Romero-Cadaval, Maria Isabel Milanes-Montero, Eva González Romera. Photovoltaic inverter with smart grid functions. 2016 IEEE 16th International Conference on Environment and Electrical Engineering (EEEIC). 2016; ():1-6.
Chicago/Turabian StyleFermin Barrero-Gonzalez; Victor Minambres-Marcos; Miguel Guerrero-Martinez; Enrique Romero-Cadaval; Maria Isabel Milanes-Montero; Eva González Romera. 2016. "Photovoltaic inverter with smart grid functions." 2016 IEEE 16th International Conference on Environment and Electrical Engineering (EEEIC) , no. : 1-6.