Introduction to hybrid systems &amp;#x2014; Yildiz Technical University

Arıkan, Oktay; Isen, Evren; Durusu, Ali; Kekezoğlu, Bedri; Bozkurt, Altuğ; Erduman, Ali

doi:10.1109/eurocon.2013.6625125

Cited by 7 publications

(4 citation statements)

References 7 publications

(7 reference statements)

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“…Renewable energy sources studied intensively in recent years from academia and industry because insufficient amount of fossil fuel is remained for energy production in addition to its environmental effects. Therefore, researchers have turned their attention to more efficient utilization of renewable energy sources in recent years (Arikan et al, 2013). Photovoltaic (PV) systems introduced for renewable energy production and utilization of PV systems increased in proportional to energy demands (Kekezoglu et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Comparative Study of Photovoltaic Array Optimum Tilt Angle and Orientation With Multi-Objective Consideration

Durusu

Erduman

Yildiz

2020

Mühendislik Bilimleri Ve Tasarım Dergisi

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Photovoltaic (PV) solar energy system converts sunlight to electricity and referred as one of promising system for production of a renewable energy resources. Tilt angle and orientation have important effect on PV output. Positioning of PV system using tilt angle and orientation, therefore, according to path of radiation of sunlight is very critical to obtain more efficient energy conversion from PV panels. In this study, determination of optimum tilt angle and orientation studied for a gridconnected hybrid wind-PV-battery system. Firstly, general calculations of PV completed using a numerical method as follow: annual solar radiation (Wh/m 2 ), annual energy production using radiation and temperature (Wh/m 2 ), energy production using radiation, temperature and wind speed (Wh/m 2 ). Secondly, cost of electricity for a grid-connected wind-PV-battery hybrid systems ($/year) depending on solar radiation, weather conditions and electricity market data were obtained using numerical method. It founded that optimum tilt angle varied between 26° -27° for first three scenario and for the last case is 9°. As for orientation, it changed from south to west for all cases. Moreover, it seems that results of this study might be a reference and preliminary study for scientist and researcher/engineers to simplify designing and evaluating PV system.

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Section: Introductionmentioning

confidence: 99%

Comparative Study of Photovoltaic Array Optimum Tilt Angle and Orientation With Multi-Objective Consideration

Durusu

Erduman

Yildiz

2020

Mühendislik Bilimleri Ve Tasarım Dergisi

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“…Renewable energy sources utilization has been rapidly increasing for the last two decades because of reducing fossil based energy generation and environmental hazards [1]. Especially the photovoltaic (PV) systems have begun to be used frequently in order to meet the quickly increasing energy demand [2].…”

Section: Introductionmentioning

confidence: 99%

Effect of PV Orientation on Energy Generation and Economy A Case Study for Istanbul Turkey

Durusu¹,

Erduman²,

Tanrıöven³

2015

Third International Conference on Advances in Mechanical and Automation Engineering - MAE 2015

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Abstract-This analysis consider the effect of azimuth angle of fixed photovoltaic (PV) system on energy generation of PV system. Detailed PV production model, including effect of solar radiation, temperature and wind speed, was used to calculate output of PV array for different azimuth angles of PV array. For determination of economic value of the PV produced power, daily electricity price variation of Turkey was also considered. A comparison between the produced power and economic value of produced power of different azimuth angle was performed. The results obtained from comparison are presented and discussed.

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“…Paralelisasi dua konverter menggunakan transformator frekuensi tinggi dengan kapabilitas multi input-single output. Dengan menggunakan transformator frekuensi tinggi terbukti secara ukuran jauh lebih kecil dengan daya yang sama dibandingkan dengan transformator konvensional seperti yang telah dikembangkan pada [4].…”

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“…Permasalahan yang dihadapi dalam metode hybrid coupled magnetic systems adalah bagaimana mentransfer energi yang optimum dari sisi primer menuju sisi sekunder transformator frekuensi tinggi. Berbagai litertur [4], [5] menyatakan transfer energi yang optimum dapat dilakukan melalui pengaturan pola switching dengan bentuk gelombangnya persegi (square wave), serta penggunaan material inti transformator dan frekuensi operasinya. Namun demikian, kesemua faktor ini masih perlu diinvestigasi lebih lanjut.…”

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Analisis Paralelisasi Konverter Melalui Multi Input - Single Output Transformator Frekuensi Tinggi dengan MatLab Simulink

Fitriadi

Yandri

Herisanjani

2020

EJI

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Two parallel converters DC/AC with isolated control can be applied by a high frequency transformer with a switching pattern. However, the switching pattern and control technique of the converter needs more research so the process of electrical energy distribution on the parallel output side can produce the optimum value. Furthermore, in this research, parallelization method is applied by utilizing two converters in high frequency transformer with multi input-single output capability controlled by Matlab/Simulink. The input side of transformer consists of two full bridge converters while secondary side represents the parallelization of output side. Two converters DC/AC is simulated by phase shifted full bridge (PSFB) of switching pattern and voltage mode control (VMC) technique. The distribution condition of optimum energy is investigated by observation of influences of ON condition duration of each switching period cycle on input converter to ON condition duration of secondary transformer terminal. The ON condition duration of each converter with switching PSFB is the condition depends on shifted/delay phase of signal on gate control. According to this simulation, optimum ON condition occurs when shifted/delay phase of each gate control signal converter is 135° (α1=α2=135°) and this condition is more efficient than phase of gate control signal is 45° (α1=α2=45°). The simulation results show that larger α of converters give the optimum distribution.

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Introduction to hybrid systems — Yildiz Technical University

Cited by 7 publications

References 7 publications

Comparative Study of Photovoltaic Array Optimum Tilt Angle and Orientation With Multi-Objective Consideration

Comparative Study of Photovoltaic Array Optimum Tilt Angle and Orientation With Multi-Objective Consideration

Effect of PV Orientation on Energy Generation and Economy A Case Study for Istanbul Turkey

Analisis Paralelisasi Konverter Melalui Multi Input - Single Output Transformator Frekuensi Tinggi dengan MatLab Simulink

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