{"title":"Reliability and Continuity Indicators Estimation in System of Electrical Power Supply to the Consumer","authors":"C. Mihai, E. Helerea","doi":"10.1109/MPS.2019.8759659","DOIUrl":"https://doi.org/10.1109/MPS.2019.8759659","url":null,"abstract":"Continuity indicators and that characterizing power quality are statistical parameters that describe, globally or locally, the state of operation of both, electrical power supply system and consumer equipment, as well as those belonging to consumers. Nowadays at the international level is not a unitary way of defining indicators, which quantify reliability of the electric power supply for consumers and to point the connection between the reliability indicators and the continuity of the electrical power supply indicators. The analysis of such indicators makes it possible to determine the quantity and quality of the necessary information and, on that basis, to adopt the measures as well as to reduce the economic consequences to a level of safety that can be accepted by the consumer and possible to be carried out by the operator of the electricity distribution. In this paper, an analysis of the reliability and continuity indicators are presented, and through the case study in a residential area, the link between the reliability of the electrical installation and the power quality through the quality of the service are established by analyzing SAIDI and SAIFI indicators. The results of case study support the factors involved in the choice of the optimal solution in such a way that the key performance indicators of the electricity network to be improved.","PeriodicalId":397346,"journal":{"name":"2019 8th International Conference on Modern Power Systems (MPS)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134275522","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":"Noise and vibration analysis of an in-wheel motor with integrated magnetic gear dedicated for light electric application","authors":"C. Pop, D. Fodorean, C. Husar, C. Irimia","doi":"10.1109/MPS.2019.8759742","DOIUrl":"https://doi.org/10.1109/MPS.2019.8759742","url":null,"abstract":"This paper describes first, a structural behavior of a permanent magnet synchronous machine, with inversed structure Above its topology it is placed a magnetic gear which has the role to increase the speed of the machine. The main purpose of this structure is to offer the possibility to obtain different levels of torque and speed from the two available rotors. In this paper is presented the vibro-acoustic behavior of the studied structure. It is known that the cause for the noise in a machine is due to the vibrations produced mainly by the radial forces within the structure. Because of the complexity of the structure, the main parts are studied individually to observe the level of noise produced of each one of them, separately. The comparison between numerical results of noise and vibration made for the two stators and two rotors represent the consistency of the paper.","PeriodicalId":397346,"journal":{"name":"2019 8th International Conference on Modern Power Systems (MPS)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125320493","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":"Electrical Machines Used in Electric Power Steering Applications","authors":"Zsolt Mathe, Andreea-Mǎdǎlina Nicorici, L. Szabó","doi":"10.1109/MPS.2019.8759736","DOIUrl":"https://doi.org/10.1109/MPS.2019.8759736","url":null,"abstract":"In advanced vehicles electric power steering systems owing several advantages are replacing the classical hydraulic ones. The main part of such systems is the electrical machine developing the required steering torque. The paper is a survey on the most widely used electrical machines proposed for these vital systems of a modern vehicle.","PeriodicalId":397346,"journal":{"name":"2019 8th International Conference on Modern Power Systems (MPS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129058370","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":"Comparative Analysis Between the PI Speed Controller and Two-Degrees-of-Freedom Speed Controller for Induction Motor Drive","authors":"Alexandru Gogea, O. Stoicuta, T. Pana","doi":"10.1109/MPS.2019.8759711","DOIUrl":"https://doi.org/10.1109/MPS.2019.8759711","url":null,"abstract":"We present in this paper a comparative study between a PI speed controller and the two-degree-of-freedom (2DOF) speed controller, used in a sensorless vector control system with direct orientation after the rotor flux. The simultaneous estimation of the speed and rotor flux is done by using an extended Gopinath Observer (EGO). Comparative analysis is performed by using simulation in the Matlab-Simulink programming environment.","PeriodicalId":397346,"journal":{"name":"2019 8th International Conference on Modern Power Systems (MPS)","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121527372","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}
F. Girbau-Llistuella, F. Díaz-González, A. Sumper, M. Aragüés-Peñalba, Luisa Candido, R. Gallart-Fernández
{"title":"Methodology for the sizing of a hybrid energy storage system in low voltage distribution grids","authors":"F. Girbau-Llistuella, F. Díaz-González, A. Sumper, M. Aragüés-Peñalba, Luisa Candido, R. Gallart-Fernández","doi":"10.1109/MPS.2019.8759696","DOIUrl":"https://doi.org/10.1109/MPS.2019.8759696","url":null,"abstract":"This paper presents a methodology for the sizing of hybrid storage solutions in low-voltage distribution networks. A hybrid storage solution is defined as that able to integrate and maximize the performance of a heterogeneous grouping of battery types. The methodology relays on a step-by-step analysis of field data collected from the area at which the hybrid solution is intended to be connected to. It also considers diverse restrictions related to available budget, technical constraints related to the different technologies included, and business and future exploitation aspects. A study case based on a real demonstration is presented to validate the proposed methodology.","PeriodicalId":397346,"journal":{"name":"2019 8th International Conference on Modern Power Systems (MPS)","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131928965","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}
Lefteris Loukas, Klajdi Bodurri, Panagiotis Evangelopoulos, A. Bouhouras, Nikolay Poulakis, G. Christoforidis, I. Panapakidis, K. Chatzisavvas
{"title":"A Machine Learning Approach for NILM based on Odd Harmonic Current Vectors","authors":"Lefteris Loukas, Klajdi Bodurri, Panagiotis Evangelopoulos, A. Bouhouras, Nikolay Poulakis, G. Christoforidis, I. Panapakidis, K. Chatzisavvas","doi":"10.1109/MPS.2019.8759666","DOIUrl":"https://doi.org/10.1109/MPS.2019.8759666","url":null,"abstract":"This paper examines the application of machine learning techniques in NILM methodologies based on the first three odd harmonic order current vectors as the only attributes of the appliances. Proper formulation of the measured current waveform of appliances' combinations is also presented. We apply our methodology on performed measurements of typical Low Voltage residential installations considering harmonic order currents as the input features for both the training and disaggregation scheme. Our results support the hypothesis that the identification performance is enhanced when higher harmonic currents are included in the NILM methodology.","PeriodicalId":397346,"journal":{"name":"2019 8th International Conference on Modern Power Systems (MPS)","volume":"119 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134196347","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":"Case study on the Implementation of Renewable Sources in the Medium Voltage Distribution Network","authors":"Ciobanu Ciprian, I. Marcel","doi":"10.1109/MPS.2019.8759747","DOIUrl":"https://doi.org/10.1109/MPS.2019.8759747","url":null,"abstract":"Distributed Generation with Renewable Energy is a vast subject and a current research on national and international level, mainly due to the high level of development of the solutions in the production of energy from renewable sources. The continuous development of the production technologies has determined in recent years the penetration of the renewable sources into the energy distribution systems in an increasing proportion, in some cases radically modifying their structure. It is proposed as a case study the modeling in the “ATP – Alternative Transients Program” of a real medium voltage distribution network and the validation of the model based on results recorded in the real network. The ATP model obtained is intended to be usable and reliable for further analysis of transient regimes.","PeriodicalId":397346,"journal":{"name":"2019 8th International Conference on Modern Power Systems (MPS)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127856269","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":"Wind farms behaviour at power grid voltage dips","authors":"R. Beniugă, M. Istrate, O. Beniuga","doi":"10.1109/MPS.2019.8759728","DOIUrl":"https://doi.org/10.1109/MPS.2019.8759728","url":null,"abstract":"Wind power plants have technical and operating characteristics that significantly differ from other types of power plants, such as the power available at each moment and wind power installed, the technical performance of wind farms in the event of system disturbances, the volatility and the unpredictability of wind power production. Therefore, it is necessary to analyze the specific problems raised by the installation of wind farms and identify the necessary measures to solve them before connecting a significant volume of wind power energy. One of the main requirements to be met by wind farms is fault ride through. The present paper aims to study the impact of the grid faults on the wind turbines at the connection point and on their generators and is presented as a teaching tool that can be useful for students in renewable power system applications.","PeriodicalId":397346,"journal":{"name":"2019 8th International Conference on Modern Power Systems (MPS)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115350465","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":"Integrating the industrial consumer into smart grid by load curve forecasting using machine learning","authors":"S. Ungureanu, V. Topa, A. Cziker","doi":"10.1109/MPS.2019.8759707","DOIUrl":"https://doi.org/10.1109/MPS.2019.8759707","url":null,"abstract":"Integration of industrial consumers into the smart grid concept can be facilitated by optimizing short and very short-term forecasts of load curves for industrial consumers. Minimizing forecast errors can improve the supplier-consumer relationship by reducing supplier balancing costs, which can lower the energy bill, and anticipate possible network faults or network congestion which means improved operation across the entire power system. The present paper aims at demonstrating the usefulness of energy forecasting by using machine learning methods. In the context of installing monitoring systems with load curve recording data at short intervals of time, huge amounts of data are obtained that need to be capitalized in real time (automated), otherwise the investments necessary to modernize the way in which the energy is used are not justified, consequently disfavouring the development and digitization of electrical networks. Integration of the industrial consumer into the smart grid concept can be applied in detail at large industrial consumers where forecasts can be made on certain areas inside factories or electric equipment with high installed electric capacity. The use of smart grid technologies removes the current limits for monitoring, processing and communication between consumption and production. To be able to capitalize on the forecasts, a very important aspect is the automation of their realization and quick access to the decision makers who may be human or other smart grid integrated systems. That is why the present paper proposes the use of machine learning methods in the short and very short forecast, and the results will be compared with the classical forecasting methods. Hourly load curves from the industrial consumers will be used for forecasts.","PeriodicalId":397346,"journal":{"name":"2019 8th International Conference on Modern Power Systems (MPS)","volume":"130 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115980880","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":"Graduate skills for the Power Engineering sector: On the match between supply and demand","authors":"A. Ward","doi":"10.1109/MPS.2019.8759657","DOIUrl":"https://doi.org/10.1109/MPS.2019.8759657","url":null,"abstract":"Higher Education Institutions have been up-skilling learners and preparing them for employment since the first University was established in 859AD in Fez, Morocco. The education process is a matching process of skills between what the learner wants and what employers require. To be effective this matching process requires both parties to understand what skills are required, to have a common understanding of the skills and how to articulate them and in how competence in them are verified. Traditionally Higher Education programmes have had a focus on developing technical skills. In Engineering programmes this typically involves establishing a solid foundation in understanding of Mathematics, in the principles of how objects interact with their environment, design and development of system components and systems, how to fabricate and test and how to professionally document work. Industry is increasingly expressing the need for softer skills, variously called generic, transferable, employability and skills for life. This paper shows the place of technical and generic skills in the employment transition by presenting a generic model for the transition from education into employment and looks at some example skills from UK power engineering job adverts to illustrate the definitional and warranting issues. The adverts show that employers use some very high-level skills constructs in their requirements for new recruits and very general adjectives to describe the required competence in these skills. The skill requirements, as indicated by the label used to define them, whilst overlapping with the skills being embedded into education programmes do not align closely. Further, and potentially more worryingly, the statement of the degree of competence in the skills do not align at all with the methods of measurement of competence in the skills even where such measurements exist. The paper concludes with some general comments and recommendations for ways forward.","PeriodicalId":397346,"journal":{"name":"2019 8th International Conference on Modern Power Systems (MPS)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122908935","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}