PQBlog

Impacts of Fault Diagnosis Schemes on Distribution System Reliability

Published by Shahram Kazemi, Member, IEEE, Matti Lehtonen, and Mahmud Fotuhi-Firuzabad, Senior Member, IEEE.IEEE TRANSACTIONS ON SMART GRID, VOL. 3, NO. 2, JUNE 2012 Abstract—Design and development of fault diagnosis schemes (FDS) for electric power distribution systems are major steps in realizing the self-healing function of a smart distribution grid. The application of the FDSContinue reading “Impacts of Fault Diagnosis Schemes on Distribution System Reliability”

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”

Practical Experiences and Mitigation Methods of Harmonics in Wind Power Plants

Published by Babak Badrzadeh, Senior Member, IEEE, and Manoj Gupta IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, VOL. 49, NO. 5, SEPTEMBER/OCTOBER 2013 Abstract—This paper discusses practical experiences and mitigation methods of harmonics in wind power plants. Traces obtained from harmonic measurements of actual wind turbines are presented for the type 3 and type 4 turbines, andContinue reading “Practical Experiences and Mitigation Methods of Harmonics in Wind Power Plants”

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”