E. Widl, B. Delinchant, S. Kubler, Dan Li, W. Müller, V. Norrefeldt, Thierry S. Nouidui, Sebastian Stratbucker, M. Wetter, F. Wurtz, W. Zuo
{"title":"Novel simulation concepts for buildings and community energy systems based on the Functional Mock-up Interface specification","authors":"E. Widl, B. Delinchant, S. Kubler, Dan Li, W. Müller, V. Norrefeldt, Thierry S. Nouidui, Sebastian Stratbucker, M. Wetter, F. Wurtz, W. Zuo","doi":"10.1109/MSCPES.2014.6842396","DOIUrl":"https://doi.org/10.1109/MSCPES.2014.6842396","url":null,"abstract":"Research and development in the fields of building technologies and community energy systems have caused in recent years a transition away from stand-alone components towards dynamically interacting systems. However, the precise modeling and simulation of such complex cyber-physical systems proves challenging for the established simulation tools. This paper illustrates the applicability of co-simulation and model exchange concepts based on the Functional Mock-up Interface (FMI) specification for the simulation of buildings and community energy systems by comparing several state-of-the-art approaches. The presented applications thereby demonstrate the suitability and relevance of such modular and flexible simulation concepts for these fields. At the same time the importance of a common simulation interface is emphasized, which allows the reuse of individual components for a diverse range of applications.","PeriodicalId":202643,"journal":{"name":"2014 Workshop on Modeling and Simulation of Cyber-Physical Energy Systems (MSCPES)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129949574","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Integration of heterogeneous small test beds for emulating large-scale smart power grids the emphasis on cyber architectures","authors":"M. Ilić","doi":"10.1109/MSCPES.2014.6842394","DOIUrl":"https://doi.org/10.1109/MSCPES.2014.6842394","url":null,"abstract":"This paper proposes a data-driven model-based computer platform to support modular integration of: 1) various hardware test beds enabled with “smarts” currently under development by the electric power industry; together with 2) the virtual software test beds simulating other parts of the real-world power systems. The ultimate goal is to emulate real-world electric energy systems and the dependence of their performance on embedded smarts. The architecture used for this is based on our Dynamic Monitoring and Decisions Systems (DYMONDS) framework. This framework utilizes physics-based multi-layered structure of: 1) internal models representing (groups of) power grid sub-components; and 2) interactions of these interconnected sub-components within a large-scale power grid. Using this structure it becomes possible to define minimal information exchange cyber protocols between the sub-systems so that their sub-objectives align with the objectives of the interconnected system, and therefore, make the system as a whole sustainable. In this paper we extend this multi-layered structure to define principles for coordinating interactions of heterogeneous modular test beds within a multi-test bed computer platform.","PeriodicalId":202643,"journal":{"name":"2014 Workshop on Modeling and Simulation of Cyber-Physical Energy Systems (MSCPES)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129297595","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A Replicator Dynamics method for the Unit Commitment problem","authors":"Sohail Khan, H. Bosetti, P. Palensky, W. Gawlik","doi":"10.1109/MSCPES.2014.6842402","DOIUrl":"https://doi.org/10.1109/MSCPES.2014.6842402","url":null,"abstract":"A short-term Unit Commitment problem in power systems requires methods that are simple, stable and reconfigurable. A Replicator Dynamics based algorithm can be a good candidate in this regard. In this paper, this method is extended to model the unit specific constraints on the fitness function directly and precisely such that the method retains the optimality of the solution. Furthermore, the results are validated by comparison with Newtons Approach for optimal dispatch. The simulation results verify the methodology and implicate the possibility of extending it to complex and coupled constraints.","PeriodicalId":202643,"journal":{"name":"2014 Workshop on Modeling and Simulation of Cyber-Physical Energy Systems (MSCPES)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129305380","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Modelling physical impact of cyber attacks","authors":"A. Lemay, José M. Fernandez, S. Knight","doi":"10.1109/MSCPES.2014.6842401","DOIUrl":"https://doi.org/10.1109/MSCPES.2014.6842401","url":null,"abstract":"To increase reliability and remote operation capability, automated control based on SCADA systems were introduced in the electrical grid. This exposed the grid to cyber attacks which, due to the cyber-physical nature of the combined system, can cause physical damage such as power outages. This dual nature makes it hard for grid operators to evaluate the physical impacts of cyber attacks. To do so, we introduce a modification of the ICS sandbox architecture to perform impact assessment of cyber attacks. This is done by interfacing the emulated SCADA network with the PyPower electrical simulator which provides global information about the state of the electrical grid. Finally, to demonstrate the effectiveness of the system, a cyber attack based on an optimal disruption experiment is run and its effects in terms of operation cost are graphed in real time.","PeriodicalId":202643,"journal":{"name":"2014 Workshop on Modeling and Simulation of Cyber-Physical Energy Systems (MSCPES)","volume":"1973 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129929468","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Eero Vesaoja, Heikki Nikula, S. Sierla, Tommi A. Karhela, P. Flikkema, Chen-Wei Yang
{"title":"Hybrid modeling and co-simulation of district heating systems with distributed energy resources","authors":"Eero Vesaoja, Heikki Nikula, S. Sierla, Tommi A. Karhela, P. Flikkema, Chen-Wei Yang","doi":"10.1109/MSCPES.2014.6842395","DOIUrl":"https://doi.org/10.1109/MSCPES.2014.6842395","url":null,"abstract":"While there is intense global research activity addressing problems underpinning the re-engineering of the electrical power grid, thermal energy grids are likely to play an increasing role in energy systems. This paper describes an on-going effort in hybrid modeling and co-simulation of the physical and control domains of district heating networks. The focus is on modeling each domain using semantics and tools natural to each; we also describe the challenges of, and a method for, integration and synchronization of the simulation models in each domain. Here, the dataflow model of computation used by Simulink provides a flexible industry-grade environment for modeling the dynamics of heat energy flows, and the IEC 61499 automation architecture facilitates distributed systems modeling and enables rapid deployment to field hardware. At the application level, we show how this framework enables the study of energy flows within a producer/consumer (prosumer) and the analysis of the economic value of integrating distributed solar thermal generation and storage into a prosumer participating in a district heating network.","PeriodicalId":202643,"journal":{"name":"2014 Workshop on Modeling and Simulation of Cyber-Physical Energy Systems (MSCPES)","volume":"2015 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125716551","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Model-based control of device replication for trusted data collection","authors":"K. Ravindran, M. Rabby, Arun Adiththan","doi":"10.1109/MSCPES.2014.6842399","DOIUrl":"https://doi.org/10.1109/MSCPES.2014.6842399","url":null,"abstract":"Voting among replicated data collection devices is a means to achieve dependable data delivery to the end-user in a hostile environment. Failures may occur during the data collection process: such as data corruptions by malicious devices and security/bandwidth attacks on data paths. For a voting system, how often a correct data is delivered to the user in a timely manner and with low overhead depicts the QoS. Prior works have focused on algorithm correctness issues and performance engineering of the voting protocol mechanisms. In this paper, we study the methods for autonomic management of device replication in the voting system to deal with situations where the available network bandwidth fluctuates, the fault parameters change unpredictably, and the devices have battery energy constraints. We treat the voting system as a `black-box' with programmable I/O behaviors. A management module exercises a macroscopic control of the voting box with situational inputs: such as application priorities, network resources, battery energy, and external threat levels.","PeriodicalId":202643,"journal":{"name":"2014 Workshop on Modeling and Simulation of Cyber-Physical Energy Systems (MSCPES)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134643149","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Co-simulation of power systems, communication and controls","authors":"M. Stifter, J. Kazmi, F. Andrén, T. Strasser","doi":"10.1109/MSCPES.2014.6842400","DOIUrl":"https://doi.org/10.1109/MSCPES.2014.6842400","url":null,"abstract":"The increase of complexity in power system applications makes it difficult to investigate research questions within one dedicated specific environment. This paper shows the coupling between continuous simulation of power systems and discrete-event based simulation of communication in combination with automation and control systems. By co-simulation of conventional power system simulation with communication and automation systems, the impact and dependencies of communication on the system can be investigated. A use case of a low voltage network with an on load tap changer and remote voltage control, based on network voltage measurements is presented. Results of the simulation show a different behavior of the system when taking the communication into account. Interdependency of communication and control can be assessed in a co-simulation setup. Control algorithms can be analyzed and designed with respect to communication time constraints.","PeriodicalId":202643,"journal":{"name":"2014 Workshop on Modeling and Simulation of Cyber-Physical Energy Systems (MSCPES)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124232068","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Agent-based control of VSC-HVDC transmission grid - A Cyber Physical System perspective","authors":"D. Babazadeh, L. Nordström","doi":"10.1109/MSCPES.2014.6842398","DOIUrl":"https://doi.org/10.1109/MSCPES.2014.6842398","url":null,"abstract":"This paper proposes a control scheme to coordinate the DC voltage of converters in a HVDC grid using a Multi-agent System concept. Such interactions between agents, converters, and communication units are approached from a Cyber-Physical System (CPS) perspective. The Multi-agent based control scheme tries to update the DC voltage set-points of the converters based on local and neighboring information. The information exchange between the agents and communication delay tolerance of the control scheme is studied by means of graph theory. The multi-agent control scheme has been implemented for a seven-terminal HVDC grid in a real time simulator and the impact of communication delay on this distributed control approach has been studied and is presented in the result.","PeriodicalId":202643,"journal":{"name":"2014 Workshop on Modeling and Simulation of Cyber-Physical Energy Systems (MSCPES)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114729781","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
B. Jablkowski, O. Spinczyk, Markus Küch, C. Rehtanz
{"title":"A Hardware-in-the-Loop co-simulation architecture for power system applications in virtual execution environments","authors":"B. Jablkowski, O. Spinczyk, Markus Küch, C. Rehtanz","doi":"10.1109/MSCPES.2014.6842403","DOIUrl":"https://doi.org/10.1109/MSCPES.2014.6842403","url":null,"abstract":"The integration of Cyber-Physical Energy Systems (CPES) via the technique of virtualization has the potential to notably advance power system automation. Future power systems - especially Smart Grids - will increasingly rely on software and therefore extend the interwoven dependencies between the power system and its Information and Communication Technology (ICT) infrastructure. This, in turn, will inevitably lead to increased system complexity and as a consequence to new management, safety and security challenges. We believe that encapsulating the monitoring, control or protection software in Virtual Machines (VMs) is able to provide a remedy for many of these challenges. However, to the best of our knowledge there exists no work on how to develop or test virtualized power system applications nor on how the complex dependencies between the power system and the ICT could be taken into account during the development of such an application. In this paper we present a Hardware-in-the-Loop (HiL) co-simulation architecture which addresses both of these issues. Further, we provide a proof of concept of our development and evaluation platform for virtualized CPES applications and discuss the benefits and challenges to this approach.","PeriodicalId":202643,"journal":{"name":"2014 Workshop on Modeling and Simulation of Cyber-Physical Energy Systems (MSCPES)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122191025","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Bernhard Heinzl, W. Kastner, I. Leobner, Fabian Dür, F. Bleicher, I. Kovacic
{"title":"Using coupled simulation for planning of energy efficient production facilities","authors":"Bernhard Heinzl, W. Kastner, I. Leobner, Fabian Dür, F. Bleicher, I. Kovacic","doi":"10.1109/MSCPES.2014.6842397","DOIUrl":"https://doi.org/10.1109/MSCPES.2014.6842397","url":null,"abstract":"To meet the increasing requirements of sustainable production and to assure economic competitiveness, novel strategic approaches are necessary in designing production systems and to increase energy efficiency in the manufacturing industry. Individual areas within production facilities (e.g. production system, energy system, building hull) can be analyzed individually by using simulation-based methods. In order to access additional optimization potential, it is necessary to expand the boundaries of such simulations and to consider dynamic interactions between individual optimization fields. This work presents an approach for an interdisciplinary co-simulation, in which, for an overall integrated simulation, several simulation environments are coupled that periodically exchange data quasi-parallel at runtime. This allows not only to combine different model descriptions, but also multiple calculation algorithms, each specifically tailored to the individual needs of the respective field of engineering. A case study of a metal-cutting production facility presents an application example. The goal is to provide a decision-support tool for the early planning stages of production facilities that allows making qualified predictions about the effect and financial impact of different energy saving measures.","PeriodicalId":202643,"journal":{"name":"2014 Workshop on Modeling and Simulation of Cyber-Physical Energy Systems (MSCPES)","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126359432","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}