| 1. |
- Al Karim, Miftah, et al.
(författare)
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Synchrophasor-based data mining for power system fault analysis
- 2012
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Ingår i: Innovative Smart Grid Technologies (ISGT Europe), 2012 3rd IEEE PES International Conference and Exhibition on. - : IEEE. - 9781467325974 ; , s. 6465843-
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Konferensbidrag (refereegranskat)abstract
- Phasor measurement units can provide high resolution and synchronized power system data, which can be effectively utilized for the implementation of data mining techniques. Data mining, based on pattern recognition algorithms can be of significant help for power system analysis, as high definition data is often complex to comprehend. In this paper three pattern recognition algorithms are applied to perform the data mining tasks. The deployment is carried out firstly for fault data classification, secondly for checking which faults are occurring more frequently and thirdly for identifying the root cause of a fault by clustering the parameters behind each scenario. For such purposes three algorithms are chosen, k-Nearest Neighbor, Naïve Bayes and the k-means Clustering.
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| 2. |
- Babazadeh, Davood, et al.
(författare)
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A Platform for Wide Area Monitoring and Control System ICT Analysis and Development
- 2013
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Ingår i: 2013 IEEE Grenoble Conference PowerTech, POWERTECH 2013. - : IEEE. - 9781467356695
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Konferensbidrag (refereegranskat)abstract
- PMU-based Wide Area Monitoring and Control(WAMC) system is introduced to improve the monitoring ofpower grid across large geographic areas and control the gridusing more efficient and smart applications. The performance ofWAMC applications in real power system scenarios and impactof their supporting Information and Communication Technology(ICT) on the data quality can be quantified and analyzed bypseudo-real co-simulation test beds. The purpose of this study isto propose and develop a WAMC testing platform to facilitate thereal-time simulation of dynamic power grid, the ICTinfrastructure that overlays the grid and WAMS applications.The platform consists of OPNET, a powerful communicationnetwork emulator, connected to a real-time power systemsimulator through virtualized PMU device. The end pointstations such as Phasor Data Concentrator or PMU-basedapplications are also linked to the platform through OPNET’sreal-simulation gateway called SITL (System-In-The-Loop). Toassess the performance of the platform architecture, a case studyhas been performed with five PMUs which collect the data from apower model and deliver to PMU-based mode-estimationapplication over a typical communication network. In this study,the results explicitly intend to quantify the effect of networkprotocols on data delay.
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| 3. |
- Babazadeh, Davood, et al.
(författare)
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Real-Time Smart Grid Application Testing using OPNET SITL
- 2012
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Konferensbidrag (refereegranskat)abstract
- Phasor -based Wide Area Monitoring and Control (WAMC) system promise to improve the monitoring of power grid across large geographic areas and accordingly controlling grid in more efficient and intelligent ways. In order to have confidence on the correctness, performance and reliability of applications used in WAMC system in real world scenarios, pseudo-real test beds where the requirements for the applications and their supporting Information and Communication Technology (ICT) can be quantified and analyzed. In this paper, a WAMC system testing platform is proposed to facilitate the real-time simulation of dynamic power grid, the ICT infrastructure that overlays the grid and WAMC applications. The proposed platform consists of OPNET as a powerful communication network simulator connected to real-time power system simulator on one side through virtualized Phasor Measurement Unit device, and linked to end point stations such as Phasor Data Concentrator or application on the other side through OPNET’s real-simulation gateway. A set of proof of concept scenarios using this framework is presented.
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| 4. |
- Bottura, Riccardo, et al.
(författare)
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SITL and HLA Co-simulation Platforms : Tools for Analysis of the Integrated ICT and Electric Power System
- 2013
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Ingår i: 2013 IEEE EUROCON. - 9781467322300
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Konferensbidrag (refereegranskat)abstract
- Due to the necessity of developing analysis tools inthe integrated ICT and power system domain, this paperdescribes and compares the architecture and configuration oftwo different co-simulation approaches called SITL and HLACo-simulation platforms. We provide several details on theirimplementation and present their features by means of theresults obtained for two test cases. The paper aims at clarifyingthe type of analysis that can be effectively carried out by usingthe two different platforms. Both platforms make use of thecommunication network simulator OPNET (Optimum NetworkPerformance). One of the two platforms operates in real time, inorder to perform system-in-the-loop (SITL) simulations. Theother platform is based on the interface between OPNET and thepower network simulation environment EMTP (ElectromagneticTransient Program). The interface is based on the application ofthe High-Level Architecture (HLA) standard.
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| 5. |
- Chenine, Moustafa, et al.
(författare)
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Survey on Priorities and Communication Requirements for PMU-based Applications in the Nordic Region
- 2009
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Ingår i: 2009 IEEE Bucharest PowerTech. - : IEEE. - 9781424422340 ; , s. 1183-1190
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Konferensbidrag (refereegranskat)abstract
- Phasor based Wide Area Monitoring and Control Systems (WAMC) promise to offer more accurate and timely data on the state of the power system, thus, increasing the possibilities to manage the system at a more efficient and responsive level and apply wide area control and protection schemes. This paper presents results of a survey on communications and technical requirements for applications based on Phasor Measurement Units (PMU). The survey was carried out in the Nordic Region with participants from Transmission System Operators (TSOs) and researchers. The survey focused on documenting the stage of research and development among TSOs and researchers in the Nordic Region, as well as, their plans and visions for the future. This includes planned PMU deployments and prioritization of PMU based applications. Furthermore, a significant part of the survey was an elicitation of communication requirements for applications based on PMU data. In the paper, an examination of the time requirements for these applications in terms of delays and samples per second and comparison similar published specifications is provided.
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| 6. |
- Franke, Ulrik, et al.
(författare)
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Enterprise Architecture analysis using Fault Trees and MODAF
- 2009
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Ingår i: Proceedings of the Forum at the CAiSE 2009 Conference. ; , s. 61-66
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Konferensbidrag (refereegranskat)abstract
- Analysis of dependencies between information systems, business processes, and strategic goals is an important part of the discipline of Enterprise Architecture (EA). However, EA models typically provide only visual and qualitative decision support. This paper shows how EA frameworks for dependency analysis can be extended into the realm of quantitative methods by the use of techniques from Fault Tree Analysis (FTA). Using MODAF, the UK Ministry of Defence Architecture Framework as an example, we give a list of criteria for the extraction of a metamodel for FTA use, and provide such a metamodel for MODAF. Furthermore, we use this MODAF FTA metamodel to perform dependency analysis on a sample MODAF model.
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| 7. |
- Han, Xue, et al.
(författare)
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Empirical analysis for Distributed Energy Resources' impact on future distribution network
- 2012
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Ingår i: Energy Conference and Exhibition (ENERGYCON), 2012 IEEE International. - : IEEE. - 9781467314541 ; , s. 731-737
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Konferensbidrag (refereegranskat)abstract
- There has been a large body of statements claiming that the large scale deployment of Distributed Energy Resources (DERs) will eventually reshape the future distribution grid operation in various ways. Thus, it is interesting to introduce a platform to interpret to what extent the power system operation will be alternated. In this paper, quantitative results in terms of how the future distribution grid will be changed by the deployment of distributed generation, active demand and electric vehicles, are presented. The analysis is based on the conditions for both a radial and a meshed distribution network. The input parameters are based on the current and envisioned DER deployment scenarios proposed for Sweden.
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| 8. |
- Honeth, Nicholas, et al.
(författare)
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Decentralized topology inference of electrical distribution networks
- 2012
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Ingår i: 2012 IEEE PES Innovative Smart Grid Technologies, ISGT 2012. - : IEEE. - 9781457721588
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Konferensbidrag (refereegranskat)abstract
- Power system operation and control relies heavily on models for decision making. Topology is a critical part of producing these models and maintaining up-to-date topologies of electrical distribution networks is a resource consuming and challenging task. This paper proposes a methodology and system architecture for inference of electrical topology using process and model data from IEC 61850 compliant substation automation devices. A system of autonomous intelligent agents communicating via an overlay network is proposed where agents are capable of communicating on the IEC 61850 station bus. An algorithm for topology inference using structured exchange and comparison of process and model information is developed. The capabilities of structured information exchange and interfacing of substation automation devices enables plug-and-play operation of the topology inference requiring minimal prior knowledge of electrical network structure. Decentralized topology inference forms the basis for future work in operation and management of active distribution networks.
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| 9. |
- König, Johan, et al.
(författare)
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Mapping the Substation Configuration Language of IEC 61850 to ArchiMate
- 2010
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Ingår i: Proceedings - IEEE International Enterprise Distributed Object Computing Workshop, EDOC. - : IEEE. - 9780769541648 ; , s. 60-68
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Konferensbidrag (refereegranskat)abstract
- This paper presents a mapping between the Enterprise Architecture framework ArchiMate and the Substation Configuration Language (SCL) of IEC 61850. Enterprise Architecture (EA) is a discipline for managing an enterprise's information system portfolio in relation to the supported business. Metamodels, descriptive models on how to model and one of the core components of EA, can assist stakeholders in many ways, for example in decision-making. Moreover, the power industry is a domain with an augmented reliance on the support of information systems. IEC 61850 is a standard for the design of Substation Automation (SA) systems and provides a vendor independent framework for interoperability by defining communication networks and functions. The SCL is a descriptive language in IEC 61850 on the configuration of substation Intelligent Electronic Devices (IED) which describes the structure together with physical components and their relating functions. By using SCL, which models the architecture of SA systems, and mapping it to ArchiMate, stakeholders are assisted in understanding their SA system and its architecture. The mapping is intended to support the integration of SA systems applying IEC 61850 into the enterprise architecture. The mapping is demonstrated with an example applying the mapping to a SA configuration based on SCL.
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| 10. |
- Nordström, Lars, et al.
(författare)
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Information and communication system architectures for wide-area monitoring and control applications
- 2011
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Konferensbidrag (refereegranskat)abstract
- This paper presents a review of work performed in the field of communication systems requirements for wide area monitoring and control applications. This includes studies performed both in the context of NASPI, the North American Syncrophasor Initiative, as well as other studies in the US and Europe. Presently a relatively large body of work has been done regarding the requirements on the communication infrastructure. Among the work included, are surveys among Transmission System Operators on the foreseen communication requirements, as well as other theoretical studies on acceptable delays and other performance characteristics, such as data loss, that Wide Area Control applications put on the Information and Communication System. Much of the above referenced work still needs verification either though experimental work or through simulations. It is especially important to simulate large scale communication infrastructures that consider background traffic under different operational conditions in the power system, such as under disturbances. The paper is concluded with some remarks on future direction of work within the field.
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