{"title":"Automated Application Oriented Testing using Real Power Network Models for Combined Protection and Control Systems","authors":"D. Hilbrich, S. A. Shah, C. Rehtanz","doi":"10.1109/ISGTEurope.2019.8905457","DOIUrl":"https://doi.org/10.1109/ISGTEurope.2019.8905457","url":null,"abstract":"The development of more intelligent and smart medium and low voltage grids leads to the introduction of more complex combined protection and control systems. The conventional testing methodologies for protection relays are not sufficient for the validation of combined protection and control functionalities. Therefore, the concept of application oriented testing was already proposed in previous work. This concept has to face two challenges: the real time simulation model generation and the automation of the test procedure. These challenges are solved by the implementation of a new automated grid building algorithm based on real grid topology data and the automation of the test execution using python scripting language.","PeriodicalId":305933,"journal":{"name":"2019 IEEE PES Innovative Smart Grid Technologies Europe (ISGT-Europe)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125224973","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":"cimpyorm – a queryable python CIM-Cache for smart grid applications","authors":"T. Offergeld, M. Knittel, R. Bertram","doi":"10.1109/ISGTEurope.2019.8905684","DOIUrl":"https://doi.org/10.1109/ISGTEurope.2019.8905684","url":null,"abstract":"The increasing complexity of energy systems, with an increasing share of intermittent renewable generation and electrification of traditionally fossil energy sectors, requires a higher degree of coordination. Amongst grid operators, this comprises congestion management and concurrent planning. A common requirement is sharing equivalent grid models of each other's network areas so that neighboring grid operators can incorporate them into their own congestion forecast. The Common Information Model (CIM) provides a standardized, object-oriented representation of energy systems for this exchange. Many different open source libraries are used for system modeling and optimization, most of which come with their own internal data models. Up until now, CIM is not readily available as an import/export option for most of these libraries due to the effort of maintaining custom converters. This paper introduces cimpyorm, a middleware that provides a flexible python object mapping of CIM models for inclusion in import/export functionalities of these libraries.","PeriodicalId":305933,"journal":{"name":"2019 IEEE PES Innovative Smart Grid Technologies Europe (ISGT-Europe)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116804269","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":"Smart energy tools for buildings energy management","authors":"G. Suciu, Teodora Usurelu, Carlos Jiménez","doi":"10.1109/ISGTEurope.2019.8905606","DOIUrl":"https://doi.org/10.1109/ISGTEurope.2019.8905606","url":null,"abstract":"Nowadays, due to population growth, the demand for energy resources has increased. In this respect, the consortium of the European project CitiSim has developed a platform for the smart city ecosystem. It will provide a powerful monitoring and control infrastructure for planners to make critical management decisions on tactical and strategic levels. Smart services included are focused on energy consumption and building management. We focused our work on developing two innovative solutions: Smart Energy for building management and Business Intelligence Tool. The Smart Energy for building service is a service designed to deal with energy-related data, using analytic and forecasting algorithms to provide KPIs useful for the strategical decision making within a building. The second service, Business Intelligence Tool, relies on energy production and consumption monitoring, energy production potential simulation, and simulation of the economic performance of energy efficiency projects for various investment scenarios.","PeriodicalId":305933,"journal":{"name":"2019 IEEE PES Innovative Smart Grid Technologies Europe (ISGT-Europe)","volume":"6 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116817341","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 Conceptual Framework for the Integrated Studies of Energy Transformation in Smart Cities","authors":"Guodong Sun","doi":"10.1109/ISGTEurope.2019.8905678","DOIUrl":"https://doi.org/10.1109/ISGTEurope.2019.8905678","url":null,"abstract":"The benefits of smart city are enormous. But the list of challenges in their planning, development, and operation is long and difficult to overcome. Two important questions to policymakers and stakeholders: (1) What are the new energy problems in smart city? and (2) What are the appropriate interventions (e.g., technologies, policies) to address these problems so that best energy services can be provided? To address these questions, information from many relevant disciplines—science, engineering, policy analysis, and management—needs to be gleaned, analyzed and synthesized to generate scientifically-sound and policy-relevant knowledge. Guided by insights from literature on integrated assessment, a holistic approach for technology-and-policy analysis, this paper presents a structural framework for integrated studies of energy transformation for better sustainability and resilience in the context of smart cities. This paper first identifies a list of guiding questions. It is followed by defining the city boundary, and reducing urban energy system into six basic elements: energy resources, hardware, processes (organized signal process, and energy process), people (individuals, and organizations), institutions, and activities. Three major challenges in developing an operational model based on this framework—model integration and complexity, data availability and uncertainty, and decision salience and policy relevance—are also discussed.","PeriodicalId":305933,"journal":{"name":"2019 IEEE PES Innovative Smart Grid Technologies Europe (ISGT-Europe)","volume":"80 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127519948","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. Celik, G. Rostirolla, S. Caux, Paul Renaud-Goud, P. Stolf
{"title":"Analysis of demand response for datacenter energy management using GA and time-of-use prices","authors":"B. Celik, G. Rostirolla, S. Caux, Paul Renaud-Goud, P. Stolf","doi":"10.1109/ISGTEurope.2019.8905618","DOIUrl":"https://doi.org/10.1109/ISGTEurope.2019.8905618","url":null,"abstract":"This paper presents an energy management algorithm for a grid-connected datacenter to provide cost-efficient consumption opportunity in a Demand-Response (DR) program. The aim of this study is to schedule controllable loads of the datacenter based on on-peak and off-peak periods of different time-varying electricity prices. The electricity consumption of the datacenter is modeled with two types of workload: batch and service jobs. Service jobs are executed as soon as submitted (as non-controllable) while batch jobs can be executed over the time horizon (as controllable). Moreover, the power demand of the batch jobs can be modified by providing less/more processing resources during their execution (degradation mode). Therefore, the batch jobs give flexibility in order to provide participation opportunity to DR program for the datacenter. In this study, we determine the profitability of different time-of-use electricity prices on datacenter by solving cost-minimization problem using genetic algorithm. Simulation results show that the presented decision algorithm is able to reduce the electricity cost by participating in DR without decreasing the quality of services.","PeriodicalId":305933,"journal":{"name":"2019 IEEE PES Innovative Smart Grid Technologies Europe (ISGT-Europe)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126604926","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}
Denis Bytschkow, A. Capone, J. Mayer, Michael Kramer, T. Licklederer
{"title":"An OPC UA-based Energy Management Platform for Multi-Energy Prosumers in Districts","authors":"Denis Bytschkow, A. Capone, J. Mayer, Michael Kramer, T. Licklederer","doi":"10.1109/ISGTEurope.2019.8905725","DOIUrl":"https://doi.org/10.1109/ISGTEurope.2019.8905725","url":null,"abstract":"Control and optimization in smart energy systems rely heavily on mathematical models of power system engineers. Simultaneously, software engineers that create control and monitoring systems are faced with questions for designing appropriate system interfaces, such that different kinds of interaction schemes are supported. Often, the data specifications required by the interfaces are implicitly available within the mathematical models. Moreover, control and optimization schemes sometimes require data to be transferred to be able to operate. Despite these synergies, these tasks are generally treated separately. In this work, we aim to reduce the gap between those activities to facilitate the development of interactive and collaborative systems. We model a system consisting of multiple buildings and multiple energy networks to optimize their operation. We work with the model in a follow up step to create an industrially applicable interface that relies on the OPC UA communication protocol, which is widely used in industry and is easily integrated in modern SCADA systems. We finally demonstrate the application of the proposed approach using a co-simulation.","PeriodicalId":305933,"journal":{"name":"2019 IEEE PES Innovative Smart Grid Technologies Europe (ISGT-Europe)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122168014","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}
Bortecene Yildirim, M. Elgendy, Andrew Smith, V. Pickert
{"title":"Evaluation and Comparison of Battery Cell Balancing Methods","authors":"Bortecene Yildirim, M. Elgendy, Andrew Smith, V. Pickert","doi":"10.1109/ISGTEurope.2019.8905588","DOIUrl":"https://doi.org/10.1109/ISGTEurope.2019.8905588","url":null,"abstract":"Cell equalization is required in series connected strings to prolong battery lifespans, ensure safe operation, and to enhance the usable capacity of battery packs. Several cell balancing methods have been proposed in literature to address cell mismatch in series strings. Amongst these, dissipative balancing is the simplest and the most cost effective solution. However, this has a low efficiency and restricted balancing speed. Capacitor balancing is popular energy transferring method with its simple control, compact size, and low price; but it also has low balancing speed. Finally, runtime balancing, which is a relatively new technique, shows good performance in terms of balancing speed, and efficiency with its high cost and complex controller. Using MATLAB/ Simulink, this paper compares dissipative balancing, capacitive energy transferring balancing, and runtime balancing methods in terms of balancing speed, efficiency, complexity, and cost, with suitable applications mentioned.","PeriodicalId":305933,"journal":{"name":"2019 IEEE PES Innovative Smart Grid Technologies Europe (ISGT-Europe)","volume":"33 1-2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116724521","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":"Sharing of Energy Among Cooperative Households Using Distributed Multi-Agent Reinforcement Learning","authors":"Niklas Ebell, Moritz Gütlein, M. Pruckner","doi":"10.1109/ISGTEurope.2019.8905520","DOIUrl":"https://doi.org/10.1109/ISGTEurope.2019.8905520","url":null,"abstract":"Due to the increase of the complexity and uncertainty in the future sustainable energy system new control algorithms for decentralized acting energy entities are needed. We present an approach of distributed Reinforcement Learning in a multi-agent setup to find a control strategy of two cooperative agents within an energy cell. In order to practice energy sharing to decrease the energy cell's overall interdependence on the electrical grid, we train two independently learning agents, an energy storage and an electric power generator using Q-learning. We compare the learned strategy of the agents under partial and full observability of the environment and evaluate the interdependence of the energy cell on the electrical grid. Our results show that distributed Q-learning with independently learning agents works in the setup of an energy cell without the necessity of information exchange between agents. The algorithm under partial observability of the environment reaches comparable performance to that of full observability with fewer need of communication but at the cost of five times longer training time.","PeriodicalId":305933,"journal":{"name":"2019 IEEE PES Innovative Smart Grid Technologies Europe (ISGT-Europe)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128529328","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":"Economical Analysis of Distributed Joint Energy and Reserve Markets","authors":"Zhenwei Guo, Qinmin Yang, Shibo Chen, Zaiyue Yang","doi":"10.1109/ISGTEurope.2019.8905566","DOIUrl":"https://doi.org/10.1109/ISGTEurope.2019.8905566","url":null,"abstract":"The deep and ever increasing penetration of renewable generation requires a large amount of reserve to compensate the random fluctuation and uncertainty, which makes the reserve becoming a commodity as equally important as the energy in the future smart grid. As reserve and energy are tightly coupled, we are interested in revealing their inherent characteristics in electricity market from an economics point of view, which, however, is forbidden by the current electricity marker structures. To this end, this paper proposes a novel, yet simple, distributed joint electricity market, which consists of conventional generator, renewable generator and user, and intends to balance energy and reserve simultaneously. The simple market structure enables rigorous analysis of individual behavior regarding the prices and quantities of energy and reserve. Then, we prove the existence and uniqueness of the market equilibrium, according to which, we reveal the prices and quantities at equilibrium as explicit functions of system parameters, which brings great insights to the joint energy and reserve markets.","PeriodicalId":305933,"journal":{"name":"2019 IEEE PES Innovative Smart Grid Technologies Europe (ISGT-Europe)","volume":"112 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129689917","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 Non-Linear Load Sharing Method by Harmonics Spectrum Allocation to the Inverters","authors":"M. Yazdi, F. Yazdi","doi":"10.1109/ISGTEurope.2019.8905445","DOIUrl":"https://doi.org/10.1109/ISGTEurope.2019.8905445","url":null,"abstract":"Proper non-linear load sharing between different distributed energy resources (DERs) can be employed for improvement power quality in microgrids. In this paper, two methods of non-linear load sharing are introduced which are based on harmonic spectrum allocation to the inverters. The first method uses the “virtual digital filter” concept and the second one utilizes the on-line optimization capability of model predictive control (MPC). In the last part of the paper, these two methods of harmonic spectrum sharing are simulated using distinct philosophies to show their figure of merits for harmonic load sharing applications.","PeriodicalId":305933,"journal":{"name":"2019 IEEE PES Innovative Smart Grid Technologies Europe (ISGT-Europe)","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126880368","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}