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Öğe Experimental evaluation of performance for micro wind turbines by using permanent magnets(Kırıkkale Üniversitesi, 2018) Ari, Murat; Mamur, HayatiPermanentmagnet synchronous generators with interior rotor (IR-PMSGs) have been widelypreferred in micro wind turbines (MWTs). Customers demand high output power ofthe MWTs. Therefore, in this study, performance analyses and optimizations oftwo IR-PMSG rotors were practically carried out to increase the output power ofthe MWTs by employing N35 and N42 Neodymium-Iron-Boron (NdFeB) permanentmagnets (PMs) with same geometry used on IR-PMSG rotor surfaces. For thispurpose, two IR-PMSG rotors were designed with same geometry and applied to apole shifting reduction technique to decrease their cogging torque on theIR-PMSGs as well. According to the obtained results, comparing the performancesof the IR-PMSGs with both N35 and N42 NdFeB PMs on a MWT with regards to theirpower coefficients, an increase of 18.6% in power coefficient of the IR-PMSGwith N42 NdFeB PMs was calculated.Öğe IoT Based Smart Embedded System Design for Indoor Plants Tracking(Kırıkkale Üniversitesi, 2022) Mamur, Hayati; Dicle, Zeynep; Erdener, SuleymanToday, developments in microcontrollers being embedded system technologies have made these technological applications cheaper and accelerated the Internet of Things (IoT) studies. People have started to use the internet widely to make their lives easier, to reach and control the ones they value remotely. One of these requests is that they want their plants grown organically in indoor environments to remain alive and productive when they are away from their living environment for a while. In this study, an embedded system application with IoT has been implemented in order to ensure that organic food production in the indoor environment is more efficient and longer. The plant grown in the environment was tracked with a smart embedded system with IoT, and the user was informed with a mobile device and the environment conditioning settings were carried out. In the system, the state of the environment was determined with the sensors. This information is transferred to the microcontroller. The microcontroller analyzed the incoming data according to the previously taught information and delivered the necessary warnings to the grower via Wi-Fi. With the algorithms written by the grower and the microcontroller, it is ensured that the system intervenes when necessary. As a result, the work of increasing the yield and longer life of indoor plants has been achieved.Öğe A new fuzzy logic proportional controller approach applied to individual pitch angle for wind turbine load mitigation(Pergamon-Elsevier Science Ltd, 2017) Civelek, Zafer; Luy, Murat; Cam, Ertugrul; Mamur, HayatiIn the world, efforts to increase the resource diversity in electric generation have accelerated lately. So, the great improvements have been achieved in wind turbines (WTs). The dimensions of WTs have grown for more electric generation and their energy productions have increased. Depending on these developments, it has become more important to reduce the WT load mitigation. Thus, a tendency to pass an individual pitch angle system control rather than a collective pitch angle system control employed to stable the output power of WTs over nominal wind speeds has whetted in recent studies. However, in literature, a controller proposal relating to how to incorporate the blade moments used for providing the individual pitch angle system into the output power control system has not yet been offered. Therefore, in this study, a new fuzzy logic proportional control (FL-P-C) approach has been recommended to mitigate the moment load on blades and tower to a minimum possible value while keeping the output power of WTs at a constant value. The offered FL-P-C has also been verified by MATLAB/Simulink. Through the first application of the FL-P-C on a WT, a significant improvement of 33-83% has been managed for the blade and tower moment loads. Furthermore, the grid fluctuations have been reduced because of the stabilisation of the output power of the WT. Ultimately, by the offered FL-P-C, not only the WT load mitigations and maintenance costs of WTs could be reduced, but also electric costs could be decreased owing to increasing lifetimes of WTs. (C) 2017 Elsevier Ltd. All rights reserved.Öğe Programlanabilir Lojik Denetleyici Tabanlı Rüzgâr İzleme Sistemi Uygulaması(Kırıkkale Üniversitesi, 2017) Mamur, Hayati; Bektaş, Enes; Çiçek, Adem; Korkmaz, Fatih; Topaloğlu, İsmail; Arı, MuratBir bölgedeki veyamahallî bir yerdeki rüzgâr potansiyelinin belirlenmesi, rüzgârın uzun süreliölçülmesi ve ölçüm değerlerinin kayıt altına alınarak analiz edilmesiylegerçekleştirilmektedir. Büyük rüzgâr türbinlerinin kurulacağı bölgelerdemaliyetlerinin yüksek olması nedeniyle rüzgâr analizlerinin gerçekleştirilmesielzemdir. Küçük rüzgâr türbinlerinde ise kurulum maliyetleri düşük olduğu içinbu analizlere pek ihtiyaç duyulmaz. Bu makalede, Uluslararası ElektroteknikKomisyonunun hazırlamış olduğu IEC 61400–12–1 standardı çerçevesinde, yeniüretilen bir küçük rüzgâr türbininin güç performans ve enerji verimliliğianalizleri yapılırken giriş gücünün de ölçümünde kullanılabilecek kabiliyette,Çankırı Karatekin Üniversitesi Uluyazı Kampüsü rüzgâr analiz sisteminintasarımı ve yazılımı gerçekleştirilmiştir. Programlanabilir lojik denetleyiciile yapılan bu sistem ile küçük rüzgâr türbinlerinin giriş enerjisi olanatmosferdeki rüzgâr hızı, yönü, havanın nemi, atmosfer basıncı ve sıcaklıkdeğişkenlerin ölçülmesine ve kayıt altına alınmasına başlanılmıştır.Öğe Proportional-integral-derivative parameter optimisation of blade pitch controller in wind turbines by a new intelligent genetic algorithm(Inst Engineering Technology-Iet, 2016) Civelek, Zafer; Cam, Ertugrul; Luy, Murat; Mamur, HayatiOutput powers of wind turbines (WTs) with variable blade pitch over nominal wind speeds are controlled by means of blade pitch adjustment. While tuning the blade pitch, conventional proportional-integral-derivative (PID) controllers and some intelligent genetic algorithms (IGAs) are widely used in hot systems. Since IGAs are community-based optimisation methods, they have an ability to look for multi-point solutions. However, the PID parameter setting optimisation of the IGA controllers is important and quite difficult a step in WTs. To solve this problem, while the optimisation is carried out by regulating mutation rates in some IGA controllers, the optimisation is conducted by altering crossover point numbers in others. In this study, a new IGA algorithm approach has been suggested for the PID parameter setting optimisation of the blade pitch controller. The algorithm rearranging both the mutation rate and the crossover point number together according to the algorithm progress has been firstly used. The new IGA approach has also been tested and validated by using MATLAB/Simulink software. Then, its superiority has been proved by comparing the other genetic algorithm (GAs). Consequently, the new IGA approach has more successfully adjusted the blade pitch of a WT running at higher wind speeds than other GA methods.Öğe Use of the Genetic Algorithm-Based Fuzzy Logic Controller for Load-Frequency Control in a Two Area Interconnected Power System(Mdpi Ag, 2017) Cam, Ertugrul; Gorel, Goksu; Mamur, HayatiThe use of renewable energy resources has created some problems for power systems. One of the most important of these is load frequency control (LFC). In this study, in order to solve the LFC problem, modern control methods were applied to a two area multi source interconnected power system. A photovoltaic solar power plant (PV-SPP) was also connected, in order to identify the harmful effects on the frequency of the system. A new Genetic-based Fuzzy Logic (GA-FL) controller was designed to control the frequency of the system. For comparison, conventional proportional-integral-derivative (PID), fuzzy logic (FL), and Genetic Algorithm (GA)-PID controllers were also designed. The new control method exhibited a better performance than the conventional and other modern control methods, because of the low overshoot and short settling time. All simulations were realized with the Matlab-Simulink program.
