Published by Jan NEDOMA, Marcel FAJKUS, Radek MARTINEK, VSB – Technical university of Ostrava Abstract. This article deals with the measurement of electric current in the energy via optical fibers. Nowadays, the measurement of the electrical current by using optical fiber most commonly based on the principle of Faraday effects, thus the magneto-optic effect. FOCSContinue reading “Measurement of Electric Current using Optical Fibers: A Review”
Category Archives: Case Studies
Modeling the Transient Response of Lightning Current on Grounding Systems Wind Turbines
Published by Amina DJABOREBBI, Boubakeur ZEGNINI, Djillali MAHI, Amar TELIDJI University of Laghouat, PoBox 37 G, Mkam Laghouat 03000, Algeria. Abstract. The paper deals with transient analysis of grounding systems wind turbines. To improve the accuracy of lightning impact studies on wind power grid generation, it is necessary to develop faster, more accurate simulation toolsContinue reading “Modeling the Transient Response of Lightning Current on Grounding Systems Wind Turbines”
Problems of Measuring the Electrical Parameters of Geopolymer Concretes
Published by 1. Michał KOZIOŁ1, 2. Jarosław ZYGARLICKI1, 3. Dariusz ZMARZŁY1, 4. Elżbieta JANOWSKA-RENKAS2, Politechnika Opolska, Wydział Elektrotechniki, Automatyki i Informatyki (1), Politechnika Opolska, Wydział Budownictwa i Architektury (2)ORCID: 1. 0000-0001-9075-8656; 2. 0000-0001-9330-4369; 3. 0000-0001-9421-4277; 4. 0000-0002-1877-6216 Abstract. The article presents the problems of measuring electrical parameters on the example of determining the resistivity ofContinue reading “Problems of Measuring the Electrical Parameters of Geopolymer Concretes”
Intelligent Redundant Measuring Circuit with Primary Circuit Error Detection
Published by Bartosz DOMINIKOWSKI, Politechnika Łódzka, Instytut Systemów Inżynierii Elektrycznej. ORCID: 1. 0000-0002-4762-2005 Abstract. Differential amplifiers in measuring systems are often exposed to external factors, which may lead to disturbance of their proper operation. Due to the capabilities of microprocessor systems, the intelligent algorithms work well in systems for diagnosing circuit errors such as aContinue reading “Intelligent Redundant Measuring Circuit with Primary Circuit Error Detection”
Analysis of Interactions in the Circuit of the Power System with Nonlinear Load and LC Passive Filter
Published by Mirosław WCIŚLIK, Paweł STRZĄBAŁA,Kielce University of Technology, Department of Electric Engineering, Automatic Control and Computer Science Abstract. The paper deals with an AC circuit containing the nonlinear load and a LC passive filter. Nonlinear load voltage at the power terminals proportional to the signum function of current is considered. The current-voltage characteristic ofContinue reading “Analysis of Interactions in the Circuit of the Power System with Nonlinear Load and LC Passive Filter”
Analysis of Selected Power Quality Indicators at Non-Measured Distribution Network Points Based on Measurements at Other Points
Published by Andrzej FIRLIT, Bogusław ŚWIĄTEK, Zbigniew HANZELKA, Krzysztof PIĄTEK, Mateusz DUTKA, Tomasz SIOSTRZONEK, AGH University of Science and Technology, Krakow, Poland Abstract. The article presents a method enabling estimation of the selected power quality indicators at a given point of a power network, on the basis of the power quality indicators recorded at theContinue reading “Analysis of Selected Power Quality Indicators at Non-Measured Distribution Network Points Based on Measurements at Other Points”
Siting Hydropower Plant by Rough Set and Combinative Distance-Based Assessment
Published by Ahmed M. Agwa1,2, Shaaban M. Shaaban1,3, Northern Border University (1), Al-Azhar University (2), Menoufia University (3), Egypt Abstract. Each power plant (PP) is solo entity whose construction site is determined by different criteria in accordance with some physical rules. Latterly, great importance is provided to siting PP in inexact surroundings. Multiple-criteria decision-making forContinue reading “Siting Hydropower Plant by Rough Set and Combinative Distance-Based Assessment”
Particle Swarm Optimization Algorithm for Solar PV System under Partial Shading
Published by Fawaz S. Abdulla1, Ali N. Hamoodi2, Abdulaziz M. Kheder3, Northern Technical University, Engineering Technical College of Mosul, Mosul, Iraq. ORCID. 1. 0000-0002-6888-0580, 2. /000-0003-0991-3538, 3. 0000-0003-2606-4697 Abstract. Conventional maximum power point tracking (MPPT) has several demits such as steady-state oscillation and the inability to distinguish between multipacks generated under partial shading conditions (PSC).Continue reading “Particle Swarm Optimization Algorithm for Solar PV System under Partial Shading”
Inrush Current Impact Limitation in Smart Building Applications
Published by 1. Mariusz STOSUR1, 2. Kacper SOWA2, 3. Piotr ORAMUS1, 4. Adam RUSZCZYK2, 5. Pawel ALOSZKO3,ABB E-mobility, Krakow, Poland (1), ABB Technology Center, Krakow, Poland (2), ABB Corporate Technology Center, Krakow, Poland (3)ORCID. 1. 0000-0002-1522-3405, 2. 0000-0001-8246-2337, 3. 0000-0002-4810-3936, 4. 0000-0001-7477-8139, 5. 0000-0002-1668-6292 Abstract: This paper presents a hybrid switches based on semiconductors andContinue reading “Inrush Current Impact Limitation in Smart Building Applications”
Analysis of Changes in Electrical Parameters of Photovoltaic Roof Tiles Depending on the Place of Shading and Connection Configuration
Published by Dariusz KURZ1, Ryszard NAWROWSKI2, Szczepan KAŁUŻA3, Politechnika Poznańska, Instytut Elektrotechniki i Elektroniki Przemysłowej (1)ORCID: 1. 0000-0002-6737-0052; 2.0000-0003-0974-2935 Abstract. The paper presents the research on the influence of the connection configuration and the location of the PV cells shading on the output parameters of photovoltaic roof tiles. The problem of shading occurs in allContinue reading “Analysis of Changes in Electrical Parameters of Photovoltaic Roof Tiles Depending on the Place of Shading and Connection Configuration”
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