{"title":"Impact of Virtual Synchronous Generator on Stability Delay Margins of a Micro-Grid with Communication Time Delay","authors":"Şahin Sönmez, S. Ayasun","doi":"10.23919/eleco47770.2019.8990638","DOIUrl":"https://doi.org/10.23919/eleco47770.2019.8990638","url":null,"abstract":"The study investigates the impact of virtual synchronous generator (VSG) on stability delay margins of a micro-grid (MG) including communication time delay. MG central controller (MGCC) through various communication links is employed to regulate the system frequency. The usage of the communication networks in MGs causes time delays that degrade the performance of the controller and lead to undesired oscillations in the system frequency. Therefore, for a stable operation, it is essential to compute the upper bound of time delay known as stability delay margin for the MG considering VSG, which provides virtual inertia and damping support and operates like a real synchronous generator. By implementing a simulation approach, this paper aims to determine stability delay margins for a wide range of the proportional-integral (PI) controller gains of the MG with VSG. Results indicate that VSG increases the stability delay margins and improves stability and performance of the MG.","PeriodicalId":6611,"journal":{"name":"2019 11th International Conference on Electrical and Electronics Engineering (ELECO)","volume":"1 1","pages":"111-115"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78570763","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":"Different Haptic Senses with Multiple Vibration Motors","authors":"Gözde Gündüz Poyraz, Özgür Tamer","doi":"10.23919/ELECO47770.2019.8990480","DOIUrl":"https://doi.org/10.23919/ELECO47770.2019.8990480","url":null,"abstract":"The aim of this work is to generate different haptic senses by using distinct vibration motors, which are different from each other, simultaneously. For this purpose, Eccentric Rotary Mass (ERM) and Linear Resonant Actuator (LRA) are used for generating haptic signals which are easily discriminated by a user by touching the surface. The vibration signals are created by changing the parameters of ERM and LRA such as frequency, amplitude, modulation, duration…etc. and each represents corresponding message.","PeriodicalId":6611,"journal":{"name":"2019 11th International Conference on Electrical and Electronics Engineering (ELECO)","volume":"111 1","pages":"870-874"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85816509","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 Multi-Level DC-DC Converter Configuration for PV Applications","authors":"Davood Ghaderi","doi":"10.23919/ELECO47770.2019.8990532","DOIUrl":"https://doi.org/10.23919/ELECO47770.2019.8990532","url":null,"abstract":"In this study, a novel method is presented for DC-DC boost converter design using PI controller's blocks. This approach reinforces the same voltage source by using two or more cascaded boost converter blocks simultaneously and is very effective in power transmission in renewable energy resources where they produce a limited amount of power. In this converter, output voltage and current ripples are in a very low and acceptable level. The long-life is one advantage of using this circuit compared to conventional boost converters by considering the input current division at the input blocks. This structure provides us a multi-level output circuit. For example, with applying different duty cycles for blocks we can get different values of voltages in output and if we need to Time-varying voltages in different timescales, this structure can be useful. Two or more PI blocks control voltage production confronting rapid load changes by duty cycle changing and drive MOSFETs and restrict output voltage ripple. Simulation for the proposed configuration has been done by MATLAB/SIMULINK and results are confirming the mathematical analysis.","PeriodicalId":6611,"journal":{"name":"2019 11th International Conference on Electrical and Electronics Engineering (ELECO)","volume":"103 1","pages":"225-229"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85835990","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}
Florian F. Pfeifer, H. Filipescu, F. Frigura-Iliasa, V. Dolga, Mirela Iorga
{"title":"Study about the Protection of Automotive Electric Equipment by using Metal Oxide Varistors","authors":"Florian F. Pfeifer, H. Filipescu, F. Frigura-Iliasa, V. Dolga, Mirela Iorga","doi":"10.23919/ELECO47770.2019.8990669","DOIUrl":"https://doi.org/10.23919/ELECO47770.2019.8990669","url":null,"abstract":"Metal oxide varistors (MOV) are the newest and most advanced category of overvoltage protection elements, with obvious advantages. They are manufactured in an extremely wide range of construction, for each voltage level, from telecommunications networks and low voltage electrical installations to high and very high voltage networks, regardless of the type of current (AC or DC). This paper presents an original overvoltage protection module designed to operate in the automotive environment, based on Metal Oxide Varistors. Some design feature and experimental results are also presented in the second part of the paper.","PeriodicalId":6611,"journal":{"name":"2019 11th International Conference on Electrical and Electronics Engineering (ELECO)","volume":"482 1","pages":"349-352"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77772196","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":"Turkish Movie Genre Classification from Poster Images using Convolutional Neural Networks","authors":"Necip Gozuacik, C. O. Sakar","doi":"10.23919/eleco47770.2019.8990490","DOIUrl":"https://doi.org/10.23919/eleco47770.2019.8990490","url":null,"abstract":"Accessing to the best matching multimedia data is a trending topic due to the enormous amount of demand from people for movies, online TV series, videos etc. Advertising/Introducing form/image of such multimedia applications is important to give the key information to the audience. Sometimes a movie poster may play an important role to present the movie genre correctly. In recent years, Convolutional Neural Networks (CNN) as a deep learning architecture achieved state of-the- art performance in many image processing and recognition applications. In this paper, we implement transfer learning and fine-tuning methods on top of Google Inception-v3 algorithm, which is one of the most popular CNN architectures in this domain, and present comparative results of these methods in classifying the movie genre on a dataset consisting of Turkish movie posters. The obtained results show that fine tuning method performs better than pure CNN and transfer learning models on movie genre classification task.","PeriodicalId":6611,"journal":{"name":"2019 11th International Conference on Electrical and Electronics Engineering (ELECO)","volume":"1 1","pages":"930-934"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76433154","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":"Degradation Sensor Circuits for Indirect Measurements in Re-configurable Analog Circuit Design","authors":"Cihad Sinan Ateşavcı, Engin Afacan","doi":"10.23919/ELECO47770.2019.8990441","DOIUrl":"https://doi.org/10.23919/ELECO47770.2019.8990441","url":null,"abstract":"Time-dependent degradation mechanisms have become more pronounced for deep-submicron devices, where dramatically increased aging effects lead to circuit malfunctions over time. Re-configurable circuit design is one of the approaches in order to combat with aging phenomena. In those approaches, degradation on circuit performances are captured via a sensor circuitry (Sense) and an ad-hoc recovery operation is applied to the circuits (React). Sense operation is the most critical part for reliable operation, where aging on performances are indirectly captured from the measurable circuit quantities such as voltages, currents, and phase/frequency. In this study, sense operation is discussed in detail, sensor circuits for each type of sensing approach are designed, and demonstrated through case studies.","PeriodicalId":6611,"journal":{"name":"2019 11th International Conference on Electrical and Electronics Engineering (ELECO)","volume":"71 1","pages":"875-879"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87707940","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":"Intelligent Traffic Light Control System Simulation for Different Strategies with Fuzzy Logic Controller","authors":"Ilhan Tunc, Atakan Yasin Yesilyurt, M. Soylemez","doi":"10.23919/ELECO47770.2019.8990632","DOIUrl":"https://doi.org/10.23919/ELECO47770.2019.8990632","url":null,"abstract":"Traffic density is a growing drawback with the crowding of cities in contemporary societies. As a consequence of financial and technological innovations, the living standards of people are improving yet this increases the number of cars and traffic density accordingly. Thus, the density of traffic is reducing the quality of life for individuals in metropolises in particular. Intersections on roads are among the regions with the highest vehicle density. Control of traffic lights at traffic intersections can have important consequences in reducing traffic density and shortening waiting time in traffic. In this study, traffic light control simulation is performed using a Fuzzy Logic Controller (FLC) on a four-leg intersection. The simulation environment is made via using the Simulation of Urban Mobility (SUMO) program. Developed controllers are simulated for two different strategies. Besides, the conventional Traffic Light Controllers are also simulated, and the results are compared with each other.","PeriodicalId":6611,"journal":{"name":"2019 11th International Conference on Electrical and Electronics Engineering (ELECO)","volume":"12 1","pages":"830-834"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86556062","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}
Vecdi Emre Levent, M. Uysal, Gurol Saglam, H. F. Ugurdag, Nur Fajar Rizqi Annafianto, Furkan Aydin, Shewit W. Tesfay, Bassam Aly, M. Elamassie, Burak Kebapci
{"title":"FPGA Based DCO-OFDM PHY Transceiver for VLC Systems","authors":"Vecdi Emre Levent, M. Uysal, Gurol Saglam, H. F. Ugurdag, Nur Fajar Rizqi Annafianto, Furkan Aydin, Shewit W. Tesfay, Bassam Aly, M. Elamassie, Burak Kebapci","doi":"10.23919/ELECO47770.2019.8990530","DOIUrl":"https://doi.org/10.23919/ELECO47770.2019.8990530","url":null,"abstract":"Satisfying the demand for high bandwidth and low latency in Visible Light Communication (VLC) systems is a difficult challenge. VLC channels exhibit frequency-selectiveness at peak-speeds. This phenomenon generates a serious inter-symbol interference effect. A physical layer (PHY) design that can carry out physical layer communication tasks to overcome all these strains is required. In this study, an FPGA based PHY design that implements DCO-OFDM algorithm is described for VLC systems. A demo was performed with the developed PHY design using an LED transmitter and a photodetector receiver.","PeriodicalId":6611,"journal":{"name":"2019 11th International Conference on Electrical and Electronics Engineering (ELECO)","volume":"1 1","pages":"418-421"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90193091","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":"Enhancing Adaptability Features of Electronics in Instrumentation Hardware with TRIZ","authors":"Ekrem Bilgehan Uyar, Nihat Öztürk","doi":"10.23919/eleco47770.2019.8990665","DOIUrl":"https://doi.org/10.23919/eleco47770.2019.8990665","url":null,"abstract":"The Theory of Inventive Problem Solving (TRIZ) argues that all engineering systems follow the same systematic evolution laws and aims to assist human creativity for developing inventive solutions to technical problems. It is observed that TRIZ tools such as \"contradiction matrix\" are frequently used by many engineering disciplines, while its applications in the field of electrical and electronics engineering are rare. Since the essence of TRIZ depends on the \"collective experience\", more applications in the field of electronic design is needed to support this accumulation. This study addresses this need by using TRIZ tools to examine the resolution of the contradictions that emerge while enhancing the adaptability of instrumentation hardware. TRIZ tools are used to formulate the problem model and obtain a solution framework consisting of inventive principles. These principles have been interpreted for the desired technical system to improve adaptability features.","PeriodicalId":6611,"journal":{"name":"2019 11th International Conference on Electrical and Electronics Engineering (ELECO)","volume":"22 1","pages":"527-531"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88863821","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":"SVR Approach to the Design of Dual-Band Rectangular Microstrip Antenna with a Pair of Slots for WLAN Applications","authors":"Mahmud Esad Yiğit, T. Günel, Gülay Öke Günel","doi":"10.23919/ELECO47770.2019.8990593","DOIUrl":"https://doi.org/10.23919/ELECO47770.2019.8990593","url":null,"abstract":"In this paper, Support Vector Regression (SVR) approach to the design of rectangular microstrip antenna with a pair of slots operating in 2.4 GHz and 5 GHz frequency bands for WLAN has been presented. Simulation results obtained by High Frequency Structural Simulator (HFSS) are compared for antennas with and without slots.","PeriodicalId":6611,"journal":{"name":"2019 11th International Conference on Electrical and Electronics Engineering (ELECO)","volume":"1 1","pages":"659-663"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83177250","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}