Session 3A - Libraries

Title:	Status of the TransiEnt Library: Transient Simulation of Complex Integrated Energy Systems
Authors:	Anne Senkel, Carsten Bode, Jan-Peter Heckel, Oliver Schülting, Gerhard Schmitz, Christian Becker and Alfons Kather
Abstract:	The open-source Modelica library TransiEnt Library was developed within the research project TransiEnt.EE. This paper presents two major extensions to this library which were developed in the follow-up research project ResiliEntEE. The modeling of the power sector on transmission grid level is possible due to the implementation of the complex bus voltage. In the gas sector, the efficiency of the computation of mass and energy balances was improved. Furthermore, an efficient physical pressure loss model was added that leads to more realistic results and faster simulations. The possible application of the library are presented in an exemplary simulation of an integrated energy system. It is shown that the dynamic simulation allows the depiction of disturbances and their possible consequences in coupled sectors. Thus, next to cost and CO2 emission, an integrated energy system can be assessed in terms of its resilience as well.
Keywords:	Integrated Energy Systems, Dynamic Interactions, Electricity, Gas, Heat, TransiEnt Library
Paper:	full paper
Bibtex:	@InProceedings{modelica.org:Senkel:2021, title = "{Status of the TransiEnt Library: Transient Simulation of Complex Integrated Energy Systems}", author = {Anne Senkel and Carsten Bode and Jan-Peter Heckel and Oliver Sch\"ulting and Gerhard Schmitz and Christian Becker and Alfons Kather}, pages = {187--196}, doi = {10.3384/ecp21181187}, booktitle = {Proceedings of the 14th International Modelica Conference}, location = {Link\"oping, Sweden}, editor = {Martin Sj\"olund and Lena Buffoni and Adrian Pop and Lennart Ochel}, isbn = {978-91-7929-027-6}, issn = {1650-3740}, month = sep, series = {Link\"oping Electronic Conference Proceedings}, number = {181}, publisher = {Modelica Association and Link\"oping University Electronic Press}, year = {2021} }

Title:	DLR Visualization 2 Library - Real-Time Graphical Environments for Virtual Commissioning
Authors:	Sebastian Kümper, Matthias Hellerer and Tobias Bellmann
Abstract:	In this paper, the next generation of model-based visu- alization is introduced, the DLR Visualization 2 Library. This new real-time graphics environment for Modelica is equipped with a state of the art engine for physics based lighting calculation and high-definition render quality, si- multaneous visualization of parallel running simulation models, new features like a modern streaming interface and a new, cleaner library structure. It enables the user to create graphical real-time environments for virtual com- missioning of complex systems of systems and imaging based sensors. Some applications, as for example depth- camera data generation or rendering of point clouds or vectorized flow visualization are demonstrated in the use cases section of this paper
Keywords:	Visualization, Virtual Commissioning, Systems of Systems, Multi-Body
Paper:	full paper
Bibtex:	@InProceedings{modelica.org:Kumper:2021, title = "{DLR Visualization 2 Library - Real-Time Graphical Environments for Virtual Commissioning}", author = {Sebastian K\"umper and Matthias Hellerer and Tobias Bellmann}, pages = {197--204}, doi = {10.3384/ecp21181197}, booktitle = {Proceedings of the 14th International Modelica Conference}, location = {Link\"oping, Sweden}, editor = {Martin Sj\"olund and Lena Buffoni and Adrian Pop and Lennart Ochel}, isbn = {978-91-7929-027-6}, issn = {1650-3740}, month = sep, series = {Link\"oping Electronic Conference Proceedings}, number = {181}, publisher = {Modelica Association and Link\"oping University Electronic Press}, year = {2021} }

Title:	Towards a Modelica OPC UA Library for Industrial Automation
Authors:	Bernhard Thiele
Abstract:	Open Platform Communications Unified Architecture (OPC UA) is often named as a prospective enabler for future automation systems integrations, as for example envisioned in the German Initiative Industrie 4.0. The DLR OPC UA Modelica library connects OPC UA with the Modelica world. There are two main goals: First, OPC UA server capabilities for emulating the communication interface of (physical) hardware components in order to create component simulations, e.g., for virtual commissioning. Second, OPC UA client capabilities for interacting with real-world hardware components, e.g., for process visualization and monitoring or interactive simulation and control purposes. The library works on Windows and Linux platforms. It is tested using the Modelica environments Dymola and OpenModelica.
Keywords:	OPC UA, Industry 4.0, Robotics, Modelica
Paper:	full paper
Bibtex:	@InProceedings{modelica.org:Thiele:2021, title = "{Towards a Modelica OPC UA Library for Industrial Automation}", author = {Bernhard Thiele}, pages = {205--213}, doi = {10.3384/ecp21181205}, booktitle = {Proceedings of the 14th International Modelica Conference}, location = {Link\"oping, Sweden}, editor = {Martin Sj\"olund and Lena Buffoni and Adrian Pop and Lennart Ochel}, isbn = {978-91-7929-027-6}, issn = {1650-3740}, month = sep, series = {Link\"oping Electronic Conference Proceedings}, number = {181}, publisher = {Modelica Association and Link\"oping University Electronic Press}, year = {2021} }

Title:	A Modelica library for Thermal-Runaway Propagation in Lithium-Ion Batteries
Authors:	Christian Groß and Andrej W. Golubkov
Abstract:	Based on the Thermal Runaway (TR) experiments con-ducted in our laboratory a simple method of describ-ing a battery’s thermal behaviour was developed.Inthe approach - which we callsimple tracing method-the temperature rate measurement from Accelerating RateCalorimetry (ARC) during a TR experiment is approxi-mated to determine the thermal behaviour of the model.This method was implemented in Modelica using Dymola.Alongside the implementation of the TR model a com-plete Modelica package with useful models for TR prop-agation simulation was developed. The package called“BatterySafety”serves as a foundation for further modeldevelopment to investigate TR propagation and physicalcounter measures in greater detail. The focus of all themodels in the package was efficiency, intelligibility anduser-friendliness. With this approach we are able to simu-late TR propagation of a complete battery pack.
Keywords:	Lithium-Ion Batteries, Battery Safety, ThermalRunaway, Thermal Runaway Propagation
Paper:	full paper / library
Bibtex:	@InProceedings{modelica.org:Gross:2021, title = "{A Modelica library for Thermal-Runaway Propagation in Lithium-Ion Batteries}", author = {Christian Gro{\ss} and Andrej W. Golubkov}, pages = {215--224}, doi = {10.3384/ecp21181215}, booktitle = {Proceedings of the 14th International Modelica Conference}, location = {Link\"oping, Sweden}, editor = {Martin Sj\"olund and Lena Buffoni and Adrian Pop and Lennart Ochel}, isbn = {978-91-7929-027-6}, issn = {1650-3740}, month = sep, series = {Link\"oping Electronic Conference Proceedings}, number = {181}, publisher = {Modelica Association and Link\"oping University Electronic Press}, year = {2021} }

Title:	The DLR ThermoFluidStream Library
Authors:	Dirk Zimmer, Michael Meißner and Niels Weber
Abstract:	This paper introduces the DLR ThermofluidStream Library: a free open-source library for the robust modeling of complex thermofluid architectures. Designed to be easy to use, easy to adapt and enriched by a number of examples, this library contains the fundamental components for many different applications such as thermal management of electric cars, power plants, or building physics.
Keywords:	Thermal fluids, Thermal process systems, Robust modeling, Heat exchangers, Open source software
Paper:	full paper / library
Bibtex:	@InProceedings{modelica.org:Zimmer:2021, title = "{The DLR ThermoFluidStream Library}", author = {Dirk Zimmer and Michael Mei{\ss}ner and Niels Weber}, pages = {225--234}, doi = {10.3384/ecp21181225}, booktitle = {Proceedings of the 14th International Modelica Conference}, location = {Link\"oping, Sweden}, editor = {Martin Sj\"olund and Lena Buffoni and Adrian Pop and Lennart Ochel}, isbn = {978-91-7929-027-6}, issn = {1650-3740}, month = sep, series = {Link\"oping Electronic Conference Proceedings}, number = {181}, publisher = {Modelica Association and Link\"oping University Electronic Press}, year = {2021} }