Kurum Yazarı "Hocaoğlu, Fatih Onur" Scopus İndeksli Yayınlar Koleksiyonu İçin Listeleme
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A 2 dimensional solar radiation model [2 Boyutlu bir güneş işinim şiddeti modeli]
In this study solar radiation data obtained from Eskisehir region is mathematically modeled using a two dimentional (2D) approach. The approach and model is novel in the literature of solar radiation modeling. The analysis ... -
The Effect of Markov Chain State Size for Synthetic Wind Speed Generation
Hocaoğlu, Fatih Onur; Gerek, Ömer Nezih; Kurban, Mehmet (IEEE, 2008)In this study hourly wind speed time series data of Eskisehir region, Turkey have been used for stochastic generation of wind speed data using the transition matrix approach of the Markov chain process. Previous work on ... -
The effect of missing wind speed data on wind power estimation
Hocaoğlu, Fatih Onur; Kurban, Mehmet (Springer-Verlag Berlin, 2007)In this paper, the effect of possible missing data on wind power estimation is examined. One-month wind speed data obtained from wind and solar observation station which is constructed at Iki Ey- Campus of Anadolu University ... -
The effect of model generated solar radiation data usage in hybrid (wind-PV) sizing studies
Hocaoğlu, Fatih Onur; Gerek, Ömer Nezih; Kurban, Mehmet (Pergamon-Elsevier Science LTD, 2009)Wind speed and solar radiation characteristics belonging to past years of a region are the main input parameters in wind-photovoltaic hybrid system (WPHS) sizing studies. Classically, these data are fed to several scenarios ... -
Hourly solar radiation forecasting using optimal coefficient 2-D linear filters and feed-forward neural networks
Hocaoğlu, Fatih Onur; Gerek, Ömer Nezih; Kurban, Mehmet (Pergamon-Elsevier Science LTD, 2008)In this work, the hourly solar radiation data collected during the period August 1, 2005-July 30, 2006 from the solar observation station in Iki Eylul campus area of Eskisehir region are studied. A two-dimensional (2-D) ... -
Missing wind data forecasting with adaptive neuro-fuzzy inference system
Hocaoğlu, Fatih Onur; Oysal, Yusuf; Kurban, Mehmet (Springer, 2009)In any region, to begin generating electricity from wind energy, it is necessary to determine the 1-year distribution characteristics of wind speed. For this aim, a wind observation station must be constructed and 1-year ... -
Mycielski approach for synthetic wind speed data generation [Yapay rüzgar hizi verisi üretiminde mycielski yaklaşimi]
In this paper, a novel Mycielski based approach for wind speed data generation is developed and presented. The efficincy of the proposed approach is tested using hourly wind speed data obtained from İzmir region. To test ... -
Mycielski approach for wind speed prediction
Hocaoğlu, Fatih Onur; Fidan, Mehmet; Gerek, Ömer Nezih (Pergamon-Elsevier Science LTD, 2009)Wind speed modeling and prediction plays a critical role in wind related engineering studies. However, since the data have random behavior, it is difficult to apply statistical approaches with apriori and deterministic ... -
A novel 2-d model approach for the prediction of hourly solar radiation
Hocaoğlu, Fatih Onur; Gerek, Ömer Nezih; Kurban, Mehmet (Springer-Verlag Berlin, 2007)In this work, a two-dimensional (2-D) representation of the hourly solar radiation data is proposed. The model enables accurate forecasting using image prediction methods. One year solar radiation data that is acquired and ... -
A novel fourier based solar radiation model
Solar radiation modeling is an important issue for renewable energyengineering based problems. In this study, a novel solar radiation model isproposed. The model inputs are the solar radiation data belonging to first ... -
A novel hybrid (wind-photovoltaic) system sizing procedure
Hocaoğlu, Fatih Onur; Gerek, Ömer Nezih; Kurban, Mehmet (Pergamon-Elsevier Science LTD, 2009)Wind-photovoltaic hybrid system (WPHS) utilization is becoming popular due to increasing energy costs and decreasing prices of turbines and photovoltaic (PV) panels. However, prior to construction of a renewable generation ... -
Novel Models for Hourly Solar Radiation Using a 2-D Approach
Hocaoğlu, Fatih Onur; Gerek, Ömer Nezih; Kurban, Mehmet (Icic Int, 2009)In this work one year hourly solar radiation data are analyzed and modeled using a novel visualization method. Using a 2-D(Dimensional) surface fitting approach, the general behavior of the solar radiation in a year is ... -
A novel wind speed modeling approach using atmospheric pressure observations and hidden Markov models
Hocaoğlu, Fatih Onur; Gerek, Ömer Nezih; Kurban, Mehmet (Elsevier Science BV, 2010)Modeling the wind speed data has important implications in wind studies, providing valuable insight and parametric quantities for further engineering analysis. The classical modeling approach is to fit the probability ... -
A preliminary detailed study on constructed hybrid (wind-photovoltaic) system under climatically conditions of Eskisehir Region in Turkey
Hocaoğlu, Fatih Onur; Kurban, Mehmet (2006)Wind and solar power provide a clean energy resource and are promising in the short term in Turkey. In this study, the usage of wind and solar energy to produce electricity and the possibility of electrical energy production ... -
Regional Wind Energy Resource Assessment
Hocaoğlu, Fatih Onur; Kurban, Mehmet (Taylor & Francis Inc, 2010)In this study, using the Wind Atlas Analysis and Application Program (WAsP) software the wind statistics and energy calculations are performed for Eskisehir region. Suitable sites to locate wind turbines optimally are ... -
Solar radiation data modeling with a novel surface fitting approach
Hocaoğlu, Fatih Onur; Gerek, Ömer Nezih; Kurban, Mehmet (Springer-Verlag Berlin, 2008)In this work one year hourly solar radiation data are analyzed and modeled. Using a 2-D surface fitting approach, a novel model is developed for the general behavior of the solar radiation. The mathematical formulation of ...