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Mrs. Alba Colet Subirachs
IREC

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Journal article
Published: 16 April 2021 in Sustainability
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The high-penetration of Distributed Energy Resources (DER) in low voltage distribution grids, mainly photovoltaics (PV), might lead to overvoltage in the point of common coupling, thus, limiting the entrance of renewable sources to fulfill the requirements from the network operator. Volt-var is a common control function for DER power converters that is used to enhance the stability and reliability of the voltage in the distribution system. In this study, a centralized algorithm provides local volt-var control parameters to each PV inverter, which are based on the electrical grid characteristics. Because accurate information of grid characteristics is typically not available, the parametrization of the electrical grid is done using a local power meter data and a voltage sensitivity matrix. The algorithm has different optimization modes that take into account the minimization of voltage deviation and line current. To validate the effectiveness of the algorithm and its deployment in a real infrastructure, the solution has been tested in an experimental setup with PV emulators under laboratory conditions. The volt-var control algorithm successfully adapted its parameters based on grid topology and PV inverter characteristics, achieving a voltage reduction of up to 25% of the allowed voltage deviation.

ACS Style

Toni Gubert; Alba Colet; Lluc Casals; Cristina Corchero; José Domínguez-García; Amelia Sotomayor; William Martin; Yves Stauffer; Pierre-Jean Alet. Adaptive Volt-Var Control Algorithm to Grid Strength and PV Inverter Characteristics. Sustainability 2021, 13, 4459 .

AMA Style

Toni Gubert, Alba Colet, Lluc Casals, Cristina Corchero, José Domínguez-García, Amelia Sotomayor, William Martin, Yves Stauffer, Pierre-Jean Alet. Adaptive Volt-Var Control Algorithm to Grid Strength and PV Inverter Characteristics. Sustainability. 2021; 13 (8):4459.

Chicago/Turabian Style

Toni Gubert; Alba Colet; Lluc Casals; Cristina Corchero; José Domínguez-García; Amelia Sotomayor; William Martin; Yves Stauffer; Pierre-Jean Alet. 2021. "Adaptive Volt-Var Control Algorithm to Grid Strength and PV Inverter Characteristics." Sustainability 13, no. 8: 4459.

Preprint
Published: 26 February 2021
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High-penetration of Distributed Energy Resources (DER) in low voltage distribution grids, mainly photovoltaics (PV), might lead to overvoltage in the point of common coupling. Volt-VAr is one of the common control functions for DER power converters used to enhance the stability and the reliability of the voltage in the distribution system and, thus, fulfilling the network operator requirements. In this study, a centralized algorithm will provide local Volt-VAr control parameters to each PV inverter, based on the electrical grid characteristics where each equipment is installed. Since accurate information of grid characteristics is typically not available, the parametrization of the electrical grid is done using power meter data in DER location and a voltage sensitivity matrix. The algorithm has different optimization modes to both minimize voltage deviation and line current. In order to validate the effectiveness of the algorithm and its deployment in real infrastructure, it has been tested in an experimental setup with PV emulators in a set of 5-day tests. Volt-VAr control algorithm successfully adapted its parameters based on grid topology and PV inverter characteristics, achieving a voltage reduction up to 25% of the allowed voltage deviation.

ACS Style

Toni Cantero Gubert; Alba Colet; Lluc Canals Casals; Cristina Corchero; Jose Luís Domínguez-García; Amelia Alvarez de Sotomayor; William Martin; Yves Stauffer; Pierre-Jean Alet. Adaptive Volt-VAr Control Algorithm to Grid Strength and PV Inverter Characteristics. 2021, 1 .

AMA Style

Toni Cantero Gubert, Alba Colet, Lluc Canals Casals, Cristina Corchero, Jose Luís Domínguez-García, Amelia Alvarez de Sotomayor, William Martin, Yves Stauffer, Pierre-Jean Alet. Adaptive Volt-VAr Control Algorithm to Grid Strength and PV Inverter Characteristics. . 2021; ():1.

Chicago/Turabian Style

Toni Cantero Gubert; Alba Colet; Lluc Canals Casals; Cristina Corchero; Jose Luís Domínguez-García; Amelia Alvarez de Sotomayor; William Martin; Yves Stauffer; Pierre-Jean Alet. 2021. "Adaptive Volt-VAr Control Algorithm to Grid Strength and PV Inverter Characteristics." , no. : 1.

Journal article
Published: 05 March 2020 in Energies
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The electricity sector foresees a significant change in the way energy is generated and distributed in the coming years. With the increasing penetration of renewable energy sources, smart algorithms can determine the difference about how and when energy is produced or consumed by residential districts. However, managing and implementing energy demand response, in particular energy flexibility activations, in real case studies still presents issues to be solved. This study, within the framework of the European project “SABINA H2020”, addresses the development of a multi-level optimization algorithm that has been tested in a semi-virtual real-time configuration. Results from a two-day test show the potential of building’s flexibility and highlight its complexity. Results show how the first level algorithm goal to reduce the energy injected to the grid is accomplished as well as the energy consumption shift from nighttime to daytime hours. As conclusion, the study demonstrates the feasibility of such kind of configurations and puts the basis for real test site implementation.

ACS Style

Paolo Taddeo; Alba Colet; Rafael E. Carrillo; Lluc Casals Canals; Baptiste Schubnel; Yves Stauffer; Ivan Bellanco; Cristina Corchero Garcia; Jaume Salom. Management and Activation of Energy Flexibility at Building and Market Level: A Residential Case Study. Energies 2020, 13, 1188 .

AMA Style

Paolo Taddeo, Alba Colet, Rafael E. Carrillo, Lluc Casals Canals, Baptiste Schubnel, Yves Stauffer, Ivan Bellanco, Cristina Corchero Garcia, Jaume Salom. Management and Activation of Energy Flexibility at Building and Market Level: A Residential Case Study. Energies. 2020; 13 (5):1188.

Chicago/Turabian Style

Paolo Taddeo; Alba Colet; Rafael E. Carrillo; Lluc Casals Canals; Baptiste Schubnel; Yves Stauffer; Ivan Bellanco; Cristina Corchero Garcia; Jaume Salom. 2020. "Management and Activation of Energy Flexibility at Building and Market Level: A Residential Case Study." Energies 13, no. 5: 1188.

Journal article
Published: 17 October 2011 in IEEE Systems Journal
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This paper describes the control algorithm of a utility connected microgrid, based on independent control of active and reactive power and operating in centralized and distributed operation mode. The microgrid is composed of several (three in the experimental tests conducted) configurable units, including generation, storage, and load units. These units are interfaced with the microgrid through a voltage source converter and are controlled by the nodes of the communication system by means of IEC 61850. The proposed control strategy is validated by simulation in MATLAB/Simulink and with experimental tests.

ACS Style

Alba Colet-Subirachs; Albert Ruiz-Alvarez; Oriol Gomis-Bellmunt; Felipe Alvarez-Cuevas-Figuerola; Antoni Sudria-Andreu. Centralized and Distributed Active and Reactive Power Control of a Utility Connected Microgrid Using IEC61850. IEEE Systems Journal 2011, 6, 58 -67.

AMA Style

Alba Colet-Subirachs, Albert Ruiz-Alvarez, Oriol Gomis-Bellmunt, Felipe Alvarez-Cuevas-Figuerola, Antoni Sudria-Andreu. Centralized and Distributed Active and Reactive Power Control of a Utility Connected Microgrid Using IEC61850. IEEE Systems Journal. 2011; 6 (1):58-67.

Chicago/Turabian Style

Alba Colet-Subirachs; Albert Ruiz-Alvarez; Oriol Gomis-Bellmunt; Felipe Alvarez-Cuevas-Figuerola; Antoni Sudria-Andreu. 2011. "Centralized and Distributed Active and Reactive Power Control of a Utility Connected Microgrid Using IEC61850." IEEE Systems Journal 6, no. 1: 58-67.

Conference paper
Published: 01 July 2011 in 2008 IEEE Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century
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A utility connected microgrid based on power emulators is presented. The microgrid has been developed in the Catalonia Institute for Energy Research (IREC), Barcelona, Spain and applied to the ”Smart City” project (led by the utility Endesa) which will be implemented in the near future in Màlaga, Spain. The microgrid is composed of different nodes configurable as renewable or conventional generators, energy storage systems or controllable or non-controllable loads. These different configurations are emulated by a power converter which can be parameterized to behave as any given generation, storage or load node. The emulators are connected to voltage sourced converters (VSC) which are connected to the microgrid. The VSCs have been designed in the framework of the project and feature independent control of active and reactive power. Active and reactive power references are provided by a higher lever energy management system which is based on i-Nodes and i-Sockets. The i-Nodes manage the microgrid and communicate with i-Sockets using IEC61850. i-Sockets control individual nodes of the microgrid and communicate with VSCs by means of CAN. The microgrid can be controlled using centralized or distributed control.

ACS Style

Oriol Gomis-Bellmunt; Andreas Sumper; Alba Colet-Subirachs; Albert Ruiz-Alvarez; Felipe Alvarez-Cuevas-Figuerola; Antoni Sudria-Andreu. A utility connected microgrid based on power emulators. 2008 IEEE Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century 2011, 1 -6.

AMA Style

Oriol Gomis-Bellmunt, Andreas Sumper, Alba Colet-Subirachs, Albert Ruiz-Alvarez, Felipe Alvarez-Cuevas-Figuerola, Antoni Sudria-Andreu. A utility connected microgrid based on power emulators. 2008 IEEE Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century. 2011; ():1-6.

Chicago/Turabian Style

Oriol Gomis-Bellmunt; Andreas Sumper; Alba Colet-Subirachs; Albert Ruiz-Alvarez; Felipe Alvarez-Cuevas-Figuerola; Antoni Sudria-Andreu. 2011. "A utility connected microgrid based on power emulators." 2008 IEEE Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century , no. : 1-6.

Conference paper
Published: 01 October 2010 in 2010 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT Europe)
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This paper presents an approach to microgrid automation. The microgrid is composed of three different nodes connected to the public electric grid, which are hardware emulated with back-to-back converters. The microgrid is a flexible and weather independent test bed for testing different control algorithms. The intelligence of the automation system is split in three hierarchical layers: the RMU layer, the iNode layer and the iSocket layer. Communications among iNode and iSockets are according IEC 61850 standard. The aims of the project is to comission a set of technologies and acquire experience in microgrid automation, IEC 61850 communications and power control algorithms in DER systems.

ACS Style

Albert Ruiz-Álvarez; Alba Colet Subirachs; Oriol Gomis-Bellmunt; Josep Maria Fernandez-Mola; Felipe Alvarez-Cuevas-Figuerola; Joaquim López-Mestre; Antoni Sudrià-Andreu. Design, management and comissioning of a utility connected microgrid based on IEC 61850. 2010 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT Europe) 2010, 1 -7.

AMA Style

Albert Ruiz-Álvarez, Alba Colet Subirachs, Oriol Gomis-Bellmunt, Josep Maria Fernandez-Mola, Felipe Alvarez-Cuevas-Figuerola, Joaquim López-Mestre, Antoni Sudrià-Andreu. Design, management and comissioning of a utility connected microgrid based on IEC 61850. 2010 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT Europe). 2010; ():1-7.

Chicago/Turabian Style

Albert Ruiz-Álvarez; Alba Colet Subirachs; Oriol Gomis-Bellmunt; Josep Maria Fernandez-Mola; Felipe Alvarez-Cuevas-Figuerola; Joaquim López-Mestre; Antoni Sudrià-Andreu. 2010. "Design, management and comissioning of a utility connected microgrid based on IEC 61850." 2010 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT Europe) , no. : 1-7.

Conference paper
Published: 01 October 2010 in 2010 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT Europe)
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This paper describes the control algorithm of a utility connected microgrid, based on independent control of active and reactive power (PQ control) and working in centralized operation mode. The microgrid under investigation is composed of three configurable units: a generation unit, a storage unit and a load. These units are interfaced with the microgrid through a Voltage Source Converter (VSC) and are controlled by the nodes of the communication system by means of IEC 61850. A set of tests have been conducted to evaluate the microgrid behavior.

ACS Style

Alba Colet Subirachs; Albert Ruiz-Álvarez; Oriol Gomis-Bellmunt; Felipe Alvarez-Cuevas-Figuerola; Antoni Sudrià-Andreu. Control of a utility connected microgrid. 2010 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT Europe) 2010, 1 -7.

AMA Style

Alba Colet Subirachs, Albert Ruiz-Álvarez, Oriol Gomis-Bellmunt, Felipe Alvarez-Cuevas-Figuerola, Antoni Sudrià-Andreu. Control of a utility connected microgrid. 2010 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT Europe). 2010; ():1-7.

Chicago/Turabian Style

Alba Colet Subirachs; Albert Ruiz-Álvarez; Oriol Gomis-Bellmunt; Felipe Alvarez-Cuevas-Figuerola; Antoni Sudrià-Andreu. 2010. "Control of a utility connected microgrid." 2010 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT Europe) , no. : 1-7.

Journal article
Published: 01 January 2010 in EPE Journal
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ACS Style

Alba Colet Subirachs; Oriol Gomis-Bellmunt; Daniel Clos-Costa; Guillermo Martín-Segura; Adriä Junyent-Ferre; Roberto Villafáfila-Robles; Laia Ferrer-Marti. Electromechanical Modelling and Control of a Micro-Wind Generation System for Isolated Low Power DC Micro Grids. EPE Journal 2010, 20, 42 -48.

AMA Style

Alba Colet Subirachs, Oriol Gomis-Bellmunt, Daniel Clos-Costa, Guillermo Martín-Segura, Adriä Junyent-Ferre, Roberto Villafáfila-Robles, Laia Ferrer-Marti. Electromechanical Modelling and Control of a Micro-Wind Generation System for Isolated Low Power DC Micro Grids. EPE Journal. 2010; 20 (2):42-48.

Chicago/Turabian Style

Alba Colet Subirachs; Oriol Gomis-Bellmunt; Daniel Clos-Costa; Guillermo Martín-Segura; Adriä Junyent-Ferre; Roberto Villafáfila-Robles; Laia Ferrer-Marti. 2010. "Electromechanical Modelling and Control of a Micro-Wind Generation System for Isolated Low Power DC Micro Grids." EPE Journal 20, no. 2: 42-48.