期刊
IEEE ACCESS
卷 11, 期 -, 页码 10308-10325出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/ACCESS.2023.3238685
关键词
Thyristors; Power quality; Inductors; Reactive power; Power transmission lines; Microgrids; Power system stability; distributed generation resources; renewable energy; harmonic
Power systems based on centralized production face limitations of fossil fuel scarcity and pollution reduction requirements. Therefore, the significance of distributed generation resources (DGs) has increased by integrating renewable energy systems into the grid. This paper emphasizes the importance of researching power quality issues in distribution networks due to the increasing penetration of renewable energies.
Power systems based on centralized production are facing two limitations: the lack of fossil fuels and the need to reduce pollution; Therefore, the importance of distributed generation resources (DGs) has increased by connecting renewable energy systems to the network. With the increasing penetration of renewable energies in the network, power quality challenges in low voltage and medium voltage distribution systems have become one of the main fields of studies. Since most of the renewable energy systems are connected to the network with the help of electronic power converters devices and the main purpose of these converters is to connect DGs to the network in compliance with power quality standards; Therefore, if the switching frequency of inverters is not implemented properly, major power quality problems will be created. On the other hand, the reduction in power quality causes acute problems in power networks, which include lack of proper performance, reduction in useful life and efficiency of electrical and electronic devices in the network, creation of series and parallel resonance in some harmonics due to the presence of inductors and the capacitor, and as a result, more distortion in the voltage of the distribution network. This paper actually provides a road-map for researchers to investigate power quality issues. In other words, the mentioned cases show the importance of research and providing the solutions to improving power quality in distribution networks.
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