Bücher von Mehmet Zile

Harmonic phenomena in three phase transformers are quite important. It is because under certain conditions, the exciting current harmonics may cause inadvertent operation of the protective equipment and may also cause interface with communication circuits. The study is to discuss the harmonics in three phase transformers. For the harmonic analysis of power systems, it is essential to have all compenents represented in the harmonic frequency domain. This study shows how nonlinear elements can be directly represented in the harmonic domain by using a convolution equivalent to time domain multiplications. The procedure is then applieed to power transformers. The three-phase models with the specially connected transformers offered in this study distinctly represent the feeding system by means of the physical three-phase circuirt and the symetrical¿compenent equivalent circuit. The three-phase model could be joined to three-phase load flow program to exactly analyse the system imbalance in the future. Transformer models for harmonic studies based on rated parameters are presented.

The real-life optimization problems are too complex to be solved by developing a mathematical formula. Heuristic methods are the methods defined to decide the best of a variety of solution actions to solve a problem. Furthermore, it is preferred that heuristic methods are short in solution time and can be applied to different problems. Heuristic methods were developed while trying to find the best solution. The created algorithm, which was based on herd intelligence, was used to solve optimization problems based on the behaviors of bees moving in nature in the process of finding nutrients. By the studies, transformer failures allow us to know without any measurements and tests. In this book, scientific studies have been conducted to improve power transformers. The book contains information about what these innovations are and how to produce the most powerful and efficient transformers. This book will contribute to industry and science on power transformers.

Bu kitap, üniversitelerin Elektrik-Elektronik Mühendisli¿i, Makine Mühendisli¿i ve Meslek Yüksek Okullar¿ Teknik Programlar Bölümlerinin müfredat¿na uygun olarak haz¿rlanm¿¿t¿r. Konular¿n kolayl¿kla anlä¿lmas¿ için örnek çözümler verilmi¿tir. Günümüzde büyük teknolojik geli¿melerde Güç Elektroni¿inin ne derece önemli oldu¿u, bu bilim dal¿n¿n devaml¿ bir geli¿me içinde oldu¿u herkes taraf¿ndan bilinmekte ve kabul edilmektedir. Yo¿un e¿itim, ö¿retim ve arät¿rma çal¿¿malar¿ esnas¿nda büyük bir gayret sarf ederek en iyisini yazmaya çal¿¿t¿¿¿m bu bilimsel kitab¿n, bütün ö¿renci ve mühendis arkadälara faydal¿ olmas¿n¿ diliyorum.

Bu ders kitab¿, üniversitelerin Elektrik-Elektronik Mühendisli¿i ve Meslek Yüksek Okullar¿ Teknik Programlar Bölümlerinin müfredat¿na uygun olarak haz¿rlanm¿¿t¿r. Konular¿n kolayl¿kla anlä¿lmas¿ için örnek çözümler verilmi¿tir. Günümüzde büyük teknolojik geli¿melerde Güç Elektroni¿inin ne derece önemli oldu¿u, bu bilim dal¿n¿n devaml¿ bir geli¿me içinde oldu¿u herkes taraf¿ndan bilinmekte ve kabul edilmektedir. Yo¿un e¿itim, ö¿retim ve arät¿rma çal¿¿malar¿ esnas¿nda büyük bir gayret sarf ederek en iyisini yazmaya çal¿¿t¿¿¿m bu ders notunun, bütün ö¿renci ve mühendis arkadälara faydal¿ olmas¿n¿ diliyorum.

In this book, the harmonics, saturation, transient currents, excitation currents and neutral currents of three phase transformers are investigated in detail and experiments and simulations are made and the graphics of these harmonics are drawn by computer programs. A program was developed using the Microsoft Visual C ++ language for harmonic analysis. This work is a scientific book in the field of Electrical Engineering.

In this book, the harmonics, saturation, transient currents, excitation currents and neutral currents of three phase transformers are investigated in detail and experiments and simulations are made and the graphics of these harmonics are drawn by computer programs. A program was developed using the Microsoft Visual C ++ language for harmonic analysis. This work is a scientific book in the field of Electrical Engineering.