Akademik Veri Yönetim Sistemi
18 th International Conference of Young Scientists on Energy and Natural Sciences Issues 2022 (CYSENI2022), Kaunas, Litvanya, 24 - 27 Mayıs 2022, ss.189-198, (Tam Metin Bildiri)
The term electrical power quality refers to the quality of the electricity used. The power quality can be said to be good if the electricity is uninterrupted, does not cause damage to the devices, and does not cause a pause in production. With the development of technology, because of the increased use of non-linear circuit parts and a variety of different sorts of devices, energy power quality issues are becoming more prevalent. As a result of this, today, interest in electrical power quality and solving electrical power quality problems have started to increase. With the motivation from this issue, in order to solve power quality problems, it is necessary to determine what the problems are. When problems are identified and well known, it will be easier to find solutions to these problems. The main purpose of this study is to give information about the electrical power quality issue. In this study, the electrical power quality problems are explained together with the subjects and the DVR system used as a solution to the voltage sag problem is explained. In this study, firstly, the concept of power quality is explained in detail. It has been emphasized why power quality is important and how much damage it causes to the industry per year has been researched. It is explained why power quality deteriorates and which factors deteriorate power quality. The power quality problems in the literature have been researched and classified under various subheadings. The classification was made under seven main titles “transients, short term voltage changes, long term voltage changes, voltage fluctuations–flickers, voltage imbalance, voltage frequency variations and voltage distortions and other sub-titles”. All of these sub-headings are explained separately by giving graphical examples. Devices that are widely used in the industry have been researched to correct issues with power quality. The voltage sag problem is explained, and information is given about the reasons for this problem. Then, information is given about the DVR device used as a solution to the voltage sag problem. The features, circuit diagram, internal structure, circuit elements and the DVR system's functioning principles are described. In addition, the advantages and disadvantages of the DVR system are presented.