Development and validation of enhanced fuzzy logic controller and boost converter topologies for a single phase grid system

• Дата: 2022
• Автори: Muthubalaji, S., Devadasu, G., Srinivasan, S., Soundiraraj, N.
• Формат: Стаття
• Мова: English
• Опубліковано: National Technical University "Kharkiv Polytechnic Institute" and State Institution “Institute of Technical Problems of Magnetism of the National Academy of Sciences of Ukraine” 2022
• Теми: фотогальванічні системи; перетворювач постійного струму; що підвищує; удосконалений контролер з нечіткою логікою; відстеження точки максимальної потужності; LCL-фільтрація; генерація імпульсів; однофазні мережеві системи; photovoltaic systems; boost DC-DC converter; enhanced fuzzy logic controller; maximum power point tracking; LCL filtering; pulse generation; single-phase grid system
• Онлайн доступ: http://eie.khpi.edu.ua/article/view/254179
• Назва журналу: Electrical Engineering & Electromechanics

Introduction. Solar photovoltaic system is one of the most essential and demanding renewable energy source in the current days, due to the benefits of high efficiency, reduced cost, no pollution, and environment friendly characteristics. Here, the maximum power point tracking controller has been implemented for obtaining an extreme power from the photovoltaic array. For this purpose, there are different controller and converter strategies have been deployed in the conventional works. It includes perturb and observation, incremental conductance, fuzzy logic systems, and hill climbing, and these techniques intend to extract the high amount of power from the solar systems under different climatic conditions. Still, it limits with the issues like increased design complexity, high cost consumption, high harmonics, and increased time consumption. The goal of this work is to deploy an improved controlling and converter topologies to regulate the output voltage and power fed to the single phase grid systems. The novelty of the work aims to develop an enhanced fuzzy logic controller based maximum power point tracking mechanism with the boost DC-DC converter topology for a single phase grid tied photovoltaic systems. Practical value. Also, the higher order harmonics suppression and unbalanced current elimination are handled by the use of LCL filtering technique, which efficiently reduces the harmonics in the output of inverter voltage and current. Moreover, it helps to obtain the reduced total harmonics distortion value with improved accuracy and efficiency. Results. There are different performance indicators have been evaluated for validating the proposed enhanced fuzzy logic controller–maximum power point tracking controlling technique. Moreover, the obtained results are compared with some of the conventional controlling algorithms for proving the betterment of the proposed work.