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BETA
Gómez, Francisco JoséORCID iD iconorcid.org/0000-0001-8563-7112
Alternative names
Publications (10 of 11) Show all publications
Vanfretti, L., Olsen, S., Arava, V. S., Laera, G., Bidadfar, A., Rabuzin, T., . . . Jakobsen, S. H. (2017). An open data repository and a data processing software toolset of an equivalent Nordic grid model matched to historical electricity market data. Data in Brief, 11, 349-357
Open this publication in new window or tab >>An open data repository and a data processing software toolset of an equivalent Nordic grid model matched to historical electricity market data
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2017 (English)In: Data in Brief, E-ISSN 2352-3409, Vol. 11, p. 349-357Article in journal (Refereed) Published
Abstract [en]

This article presents an open data repository, the methodology to generate it and the associated data processing software developed to consolidate an hourly snapshot historical data set for the year 2015 to an equivalent Nordic power grid model (aka Nordic 44), the consolidation was achieved by matching the model׳s physical response w.r.t historical power flow records in the bidding regions of the Nordic grid that are available from the Nordic electricity market agent, Nord Pool.

The model is made available in the form of CIM v14, Modelica and PSS/E (Siemens PTI) files. The Nordic 44 model in Modelica and PSS/E were first presented in the paper titled “iTesla Power Systems Library (iPSL): A Modelica library for phasor time-domain simulations” (Vanfretti et al., 2016) [1] for a single snapshot. In the digital repository being made available with the submission of this paper (SmarTSLab_Nordic44 Repository at Github, 2016) [2], a total of 8760 snapshots (for the year 2015) that can be used to initialize and execute dynamic simulations using tools compatible with CIM v14, the Modelica language and the proprietary PSS/E tool are provided. The Python scripts to generate the snapshots (processed data) are also available with all the data in the GitHub repository (SmarTSLab_Nordic44 Repository at Github, 2016) [2].

This Nordic 44 equivalent model was also used in iTesla project (iTesla) [3] to carry out simulations within a dynamic security assessment toolset (iTesla, 2016) [4], and has been further enhanced during the ITEA3 OpenCPS project (iTEA3) [5]. The raw, processed data and output models utilized within the iTesla platform (iTesla, 2016) [4] are also available in the repository. The CIM and Modelica snapshots of the “Nordic 44” model for the year 2015 are available in a Zenodo repository.

Place, publisher, year, edition, pages
Elsevier, 2017
Keywords
Electrical power systems; Electric power transmission; Smart grid; Power system modeling and simulation; Power system dynamics; Dynamic simulations; Power flow; Common Information Model (CIM); Modelica; Historical market data; Modeling; Simulation
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Electrical Engineering
Identifiers
urn:nbn:se:kth:diva-204928 (URN)10.1016/j.dib.2017.02.021 (DOI)2-s2.0-85013906901 (Scopus ID)
Projects
iTESLAOpenCPS
Note

QC 20170509

Available from: 2017-04-04 Created: 2017-04-04 Last updated: 2018-02-26Bibliographically approved
Vanfretti, L., Murad, M. A. & Gómez, F. J. (2017). Calibrating a VSC-HVDC Model for Dynamic Simulations using RaPId and EMTP Simulation Data. In: 2017 IEEE POWER & ENERGY SOCIETY GENERAL MEETING: . Paper presented at 2017 IEEE Power & Energy Society General Meeting, JUL 16-20, 2017, Chicago, IL. IEEE
Open this publication in new window or tab >>Calibrating a VSC-HVDC Model for Dynamic Simulations using RaPId and EMTP Simulation Data
2017 (English)In: 2017 IEEE POWER & ENERGY SOCIETY GENERAL MEETING, IEEE , 2017Conference paper, Published paper (Refereed)
Abstract [en]

High Voltage Direct Current (HVDC) interconnections have seen an increased rate of deployment, in particular to exploit distant renewable energy sources. In order to design and understand their behavior, including their effect on the overall network, different computer tools are used for modeling and simulation of the HVDC model. This approach results in several challenges in modeling and simulation consistency, particularly for HVDC systems. To address some of these issues the standardized modeling language Modelica is used in this paper to model a VSC (Voltage Source Converter) HVDC and its high-level controllers, for phasor-time domain studies. The use of Modelica-tools that support the FMI standard for model exchange allows to utilize the model in different environments. In this work, the FMI standard is used to import the VSC-HVDC model into the RaPId toolbox environment, allowing to calibrate the VSC-HVDC phasor time domain model against reference waveform generated from its corresponding EMTP-RV model. Model calibration is carried out through different parameter identification methodologies investigated in the paper. The calibration approach and the RaPId Toolbox used to implement it can be of broader interest for researchers involved in power system model validation, particularly those working with field measurements.

Place, publisher, year, edition, pages
IEEE, 2017
Series
IEEE Power and Energy Society General Meeting PESGM, ISSN 1944-9925
Keywords
EMTP, HVDC, System Identification, Modelica
National Category
Embedded Systems
Identifiers
urn:nbn:se:kth:diva-228185 (URN)000426921803003 ()978-1-5386-2212-4 (ISBN)
Conference
2017 IEEE Power & Energy Society General Meeting, JUL 16-20, 2017, Chicago, IL
Note

QC 20180521

Available from: 2018-05-21 Created: 2018-05-21 Last updated: 2018-05-21Bibliographically approved
Vanfretti, L., Murad, M. A. & Gómez, F. J. (2017). Calibration and Sensitivity Analysis of Upper Level VSC-HVDC Controls. In: 2017 IEEE Manchester PowerTech, Powertech 2017: . Paper presented at 2017 IEEE Manchester PowerTech, Powertech 2017, Manchester, United Kingdom, 18 June 2017 through 22 June 2017. Institute of Electrical and Electronics Engineers (IEEE), Article ID 7981028.
Open this publication in new window or tab >>Calibration and Sensitivity Analysis of Upper Level VSC-HVDC Controls
2017 (English)In: 2017 IEEE Manchester PowerTech, Powertech 2017, Institute of Electrical and Electronics Engineers (IEEE), 2017, article id 7981028Conference paper, Published paper (Refereed)
Abstract [en]

High Voltage Direct Current (HVDC) interconnections have seen an increased rate of deployment, in particular to exploit distant renewable energy sources. In order to design and understand their behavior, including their effect on the overall network, different computer tools are used for modeling and simulation. This approach results in several challenges in modeling and simulation consistency, particularly for HVDC systems. In this paper, to address some of these issues, the standardized Modelica modeling language is used to model a VSC (Voltage Source Converter)-based HVDC and its upper-level controllers, suitable for dynamic analyses. The use of Modelica-tools that support the FMI standard for model-exchange allows to utilize the model in different environments. In this work, the FMI standard is used to import the VSC-HVDC model into the RaPId toolbox environment, thus allowing to calibrate the VSC-HVDC phasor model against reference waveform generated from its corresponding EMTP-RV model. Model calibration is carried out through parameter identification and a sensitivity analysis is carried out to interpret the identification results.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers (IEEE), 2017
Keywords
EMTP, HVDC, System Identification, VSC, Modelica
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:kth:diva-215858 (URN)000411142500238 ()2-s2.0-85034773506 (Scopus ID)978-1-5090-4237-1 (ISBN)
Conference
2017 IEEE Manchester PowerTech, Powertech 2017, Manchester, United Kingdom, 18 June 2017 through 22 June 2017
Funder
EU, FP7, Seventh Framework Programme
Note

QC 20171016

Available from: 2017-10-16 Created: 2017-10-16 Last updated: 2018-02-14Bibliographically approved
Gómez, F. J., Vanfretti, L. & Olsen, S. (2017). CIM-Compliant Power System Dynamic Model-to-Model Transformation and Modelica Simulation. IEEE Transactions on Industrial Informatics
Open this publication in new window or tab >>CIM-Compliant Power System Dynamic Model-to-Model Transformation and Modelica Simulation
2017 (English)In: IEEE Transactions on Industrial Informatics, ISSN 1551-3203, E-ISSN 1941-0050Article in journal (Refereed) Published
Abstract [en]

European regulations on information exchange have put new requirements on analysis tools, the main one being the adoption of the IEC Common Information Model (CIM) that may help interoperability across applications. This paper proposes the use of Model-Driven Software Engineering (MDSE) methods to meet these new requirements. Specifically, this paper shows how to apply Model-to-Model (M2M) transformations. The M2M method presented herein allows to work directly with the information and mathematical description and computer implementation of dynamic models, independent from specific analysis tools. The M2M method proposed requires the development of a mapping between CIM/UML and the Modelica language, which allows to derive Modelica models of physical power systems for dynamic simulations. 

Place, publisher, year, edition, pages
IEEE, 2017
Keywords
CIM, UML, SysML, Information Exchange, Information Modeling, Power Systems Dynamics, Modelica, OpenIPSL
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Electrical Engineering
Identifiers
urn:nbn:se:kth:diva-221663 (URN)10.1109/TII.2017.2785439 (DOI)
Funder
EU, FP7, Seventh Framework Programme, 76156
Note

QC 20180119

Available from: 2018-01-19 Created: 2018-01-19 Last updated: 2018-01-19Bibliographically approved
Vanfretti, L., Adib Murad, M. A., Gómez, F. J., León, G., Machado, S., Heyberger, J.-B. & Petitrenaud, S. (2017). Towards automated power system model transformation for multi-TSO phasor time domain simulations using Modelica. In: IEEE PES Innovative Smart Grid Technologies Conference Europe: . Paper presented at 2016 IEEE PES Innovative Smart Grid Technologies Conference Europe, ISGT Europe 2016; Ljubljana; Slovenia; 9 October 2016 through 12 October 2016. IEEE, F126485, Article ID 7856341.
Open this publication in new window or tab >>Towards automated power system model transformation for multi-TSO phasor time domain simulations using Modelica
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2017 (English)In: IEEE PES Innovative Smart Grid Technologies Conference Europe, IEEE, 2017, Vol. F126485, article id 7856341Conference paper, Published paper (Refereed)
Abstract [en]

Transmission system operators in Europe describe their dynamic power system models using different simulation tools, and due to the de-facto modeling philosophy used, these descriptions are ambiguous between tools. In addition the current CIM standard for dynamic model exchange does not guarantee consistency when exchanging models. This poses a challenge to perform pan-European dynamic security assessment. This paper presents a method for transforming power system model descriptions typically used by TSOs into a consistent and unambiguous equation based modeling language. As a result, this method allows performing simulations in multiple tools supporting the standardized Modelica language. The transformation method is validated by steady state and dynamic simulations and comparing simulation outputs between a reference tool (PSS/E or Eurostag) and a Modelica tool. It is shown that the Modelica language can be used as a common language to provide unambiguous model descriptions consistent with those tools typically used by TSOs, without loss of information and maintaining simulation fidelity.

Place, publisher, year, edition, pages
IEEE, 2017
Keywords
Mathematical model, Power system dynamics, Data models, Computational modeling, Load flow, Adaptation models, CIM, Modelica, Open source software, power system simulation, dynamic security assessment
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Electrical Engineering
Identifiers
urn:nbn:se:kth:diva-204929 (URN)10.1109/ISGTEurope.2016.7856341 (DOI)000405511300169 ()2-s2.0-85017561705 (Scopus ID)978-1-5090-3358-4 (ISBN)
Conference
2016 IEEE PES Innovative Smart Grid Technologies Conference Europe, ISGT Europe 2016; Ljubljana; Slovenia; 9 October 2016 through 12 October 2016
Projects
iTESLA
Funder
EU, FP7, Seventh Framework Programme
Note

QC 20170522

Available from: 2017-04-04 Created: 2017-04-04 Last updated: 2017-08-22Bibliographically approved
Vanfretti, L., Baudette, M., Bogodorova, T., Lavenius, J. & Gómez, F. J. (2016). RaPId: A modular and extensible toolbox for parameter estimation of Modelica and FMI compliant models. SoftwareX, 5, 144-149
Open this publication in new window or tab >>RaPId: A modular and extensible toolbox for parameter estimation of Modelica and FMI compliant models
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2016 (English)In: SoftwareX, ISSN 2352-7110, Vol. 5, p. 144-149Article in journal (Refereed) Published
Abstract [en]

This paper describes the Rapid Parameter Identification toolbox (RaPId), developed within the EU FP7 iTesla project. The toolbox was designed to carry out parameter identification on models developed using the Modelica language, focusing in particular on power system model identification needs. The toolbox has been developed with modularity and extensibility in mind, using Matlab/Simulink as a plug-in environment, where different tasks of the identification process are carried out. The identification process uses different optimization algorithms to improve the fitting of the model’s response to selected criteria. The modular architecture of RaPId gives users complete freedom to extend and adapt the software to their needs, e.g. to implement or link external solvers for simulation or optimization. The compatibility with Modelica models is brought by the use of technologies compliant with the Functional Mock-up Interface (FMI) standard.

Place, publisher, year, edition, pages
Elsevier, 2016
Keywords
FMI; Modelica; Model validation; System identification
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Electrical Engineering
Identifiers
urn:nbn:se:kth:diva-204927 (URN)10.1016/j.softx.2016.07.004 (DOI)
Projects
iTESLA
Note

QC 20170519

Available from: 2017-04-04 Created: 2017-04-04 Last updated: 2017-05-19Bibliographically approved
Leon, G., Halat, M., Sabate, M., Heyberger, J.-B. -., Gomez, F. J. & Vanfretti, L. (2015). Aspects of power system modeling, initialization and simulation using the Modelica language. In: 2015 IEEE Eindhoven PowerTech, PowerTech 2015: . Paper presented at IEEE Eindhoven PowerTech, PowerTech 2015, 29 June 2015 through 2 July 2015. IEEE conference proceedings
Open this publication in new window or tab >>Aspects of power system modeling, initialization and simulation using the Modelica language
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2015 (English)In: 2015 IEEE Eindhoven PowerTech, PowerTech 2015, IEEE conference proceedings, 2015Conference paper, Published paper (Refereed)
Abstract [en]

A medium sized power system, with a large number of devices, is fully modeled and simulated in Modelica. For this, new models for electrical components and mathematical blocks were developed in Modelica and the full system topology and parameters were taken from a reference system made in Eurostag. Initialization and time-domain simulations are performed in a Modelica simulation environment and the results obtained for the steady-state and the response to time-events are compared and validated with simulations performed in Eurostag.

Place, publisher, year, edition, pages
IEEE conference proceedings, 2015
Keywords
Midsize Power System Models, Modelica, OpenSource Software, Simulation Software, Computer software, Modeling languages, Open source software, Time domain analysis, Electrical components, Modelica language, Power system model, Reference systems, Simulation environment, Time-domain simulations, Computer simulation languages
National Category
Software Engineering
Identifiers
urn:nbn:se:kth:diva-181176 (URN)10.1109/PTC.2015.7232504 (DOI)000380546800271 ()2-s2.0-84951304189 (Scopus ID)9781479976935 (ISBN)
Conference
IEEE Eindhoven PowerTech, PowerTech 2015, 29 June 2015 through 2 July 2015
Note

QC 20160210

Available from: 2016-02-10 Created: 2016-01-29 Last updated: 2018-01-10Bibliographically approved
Gómez, F. J., Vanfretti, L. & Olsen, S. (2015). Binding CIM and Modelica for Consistent Power System Dynamic Model Exchange and Simulation. In: : . Paper presented at IEEE PES GM July 26-30, 2015,Denver, CO.
Open this publication in new window or tab >>Binding CIM and Modelica for Consistent Power System Dynamic Model Exchange and Simulation
2015 (English)Conference paper, Published paper (Refereed)
Abstract [en]

The Common Information Model (CIM) is considered the most prominent data model for power systems information exchange between Transmission System Operators (TSO), facilitating coordination of TSO for steady-state operation. However, information exchange should also consider power systems dynamic models required to perform dynamic simulations so to coordinate TSOs operations under emergency conditions. This work describes the design and implementation of a mapping between CIM and Modelica. The Modelica models provide a strict mathematical representation of power system dynamic models using a standardized modeling language. The proposed solution combines both modeling languages, thus providing a CIM-compliant unambiguous power system model exchange and simulation solution considering both steady-state and dynamic models.

Keywords
CIM, Modelica, Power System Dynamics
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Electrical Engineering; Information and Communication Technology
Identifiers
urn:nbn:se:kth:diva-171216 (URN)10.1109/PESGM.2015.7286434 (DOI)000371397503127 ()2-s2.0-84956858359 (Scopus ID)978-1-4673-8040-9 (ISBN)
Conference
IEEE PES GM July 26-30, 2015,Denver, CO
Funder
EU, FP7, Seventh Framework Programme, 76156
Note

QC 20150907

Available from: 2015-07-22 Created: 2015-07-22 Last updated: 2016-04-04Bibliographically approved
Adib Murad, A., Gómez, F. J. & Vanfretti, L. (2015). Equation-Based Modeling of FACTS using Modelica. In: : . Paper presented at PowerTech Eindhoven 29 June - 2 July 2015. IEEE conference proceedings
Open this publication in new window or tab >>Equation-Based Modeling of FACTS using Modelica
2015 (English)Conference paper, Published paper (Refereed)
Abstract [en]

This paper reports results of extending the iTesla Modelica Power System Library with the implementation of new Modelica models for power electronic-based FACTS (Flexible AC Transmission System) to be used in phasor time-domain simulations. To show the applicability of Modelica for modeling FACTS devices and power system simulation, a software-to-software validation is performed against the Power System Analysis Toolbox (PSAT), which is used as the reference software for validation. A quantitative and qualitative assessment of the validation results between PSAT and Modelica is given.

Place, publisher, year, edition, pages
IEEE conference proceedings, 2015
Keywords
Modelica, PSAT, FACTS Devices, Power System Simulation
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:kth:diva-171219 (URN)10.1109/PTC.2015.7232500 (DOI)000380546800267 ()2-s2.0-84951335187 (Scopus ID)978-147997693-5 (ISBN)
Conference
PowerTech Eindhoven 29 June - 2 July 2015
Funder
EU, FP7, Seventh Framework Programme, 76456
Note

QC 20150825

Available from: 2015-07-22 Created: 2015-07-22 Last updated: 2016-10-06Bibliographically approved
Adib Murad, A., Gómez, F. J. & Vanfretti, L. (2015). Equation-Based Modeling of Three-Winding and Regulating Transformers using Modelica. In: : . Paper presented at PowerTech Eindhoven 2015. IEEE conference proceedings
Open this publication in new window or tab >>Equation-Based Modeling of Three-Winding and Regulating Transformers using Modelica
2015 (English)Conference paper, Published paper (Refereed)
Abstract [en]

The simulation of power transformer models is important when analyzing the dynamic behavior of power systems, in particular, when considering voltage magnitude or phase regulation controls. This paper reports results of extending the library of transformers in the iTesla Modelica Power Systems Library. Three transformer models have been implemented: a three-winding transformer, an under-load tap changing transformer (ULTC) and a phase shifting transformer (PST). An IEEE 14-Bus, power system test model was also implemented, both in Modelica and PSAT, to assess the performance of the models. Software-to-software validation is carried out against PSAT, a quantitative and qualitative assessment of the validation results between PSAT and Modelica is given.

Place, publisher, year, edition, pages
IEEE conference proceedings, 2015
Keywords
Modelica, PSAT, Power Transformer, Simulation Software, Power System Simulation.
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:kth:diva-171220 (URN)10.1109/PTC.2015.7232503 (DOI)000380546800270 ()2-s2.0-84951310464 (Scopus ID)978-147997693-5 (ISBN)
Conference
PowerTech Eindhoven 2015
Funder
EU, FP7, Seventh Framework Programme, 76156
Note

QC 20150825

Available from: 2015-07-22 Created: 2015-07-22 Last updated: 2016-10-06Bibliographically approved
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ORCID iD: ORCID iD iconorcid.org/0000-0001-8563-7112

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