Yazar "Çolak, İlhami" için listeleme
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International Journal of Engineering Technologies (IJET) Vol. 2, Issue 2, June 2016
Çolak, İlhami (İstanbul Gelişim Üniversitesi Yayınları / Istanbul Gelisim University Press, 2016)Dear Colleagues, On behalf of the editorial board of International Journal of Engineering Technologies (IJET), I would like to share our happiness to publish the sixth issue of IJET. My special thanks are for members ... -
International Journal of Engineering Technologies (IJET) Vol. 2, Issue 3, September 2016
Çolak, İlhami (İstanbul Gelişim Üniversitesi Yayınları / Istanbul Gelisim University Press, 2016)Dear Colleagues, On behalf of the editorial board of International Journal of Engineering Technologies (IJET), I would like to share our happiness to publish the seventh issue of IJET. My special thanks are for members ... -
Miniaturization of Buck-Boost DC-DC Converter with Fast P Control
Kurokawa, Yudai; Sugimoto, Ippei; Kurokawa, Fujio; Eto, Haruhi; Higuchi, Tsuyoshi; Çolak, İlhami (IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA, 2015-11-22)This paper presents a consideration about miniaturization of buck-boost dc-dc converter with the fast P control. From frequency characteristics, it is identified that fast P control method is useful to suppression of output ... -
Multi-Period Prediction of Solar Radiation Using ARMA and ARIMA Models
Çolak, İlhami; Yeşilbudak, Mehmet; Genç, Naci; Bayındır, Ramazan (ELSEVIER SCIENCE BV, SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS, 2015-12-09)Due to the variations in weather conditions, solar power integration to the electricity grid at a high penetration rate can cause a threat for the grid stability. Therefore, it is required to predict the solar radiation ... -
Multi-Time Series and -Time Scale Modeling for Wind Speed and Wind Power Forecasting Part I: Statistical Methods, Very Short-Term and Short-Term Applications
Çolak, İlhami; Sağıroğlu, Şeref; Yeşilbudak, Mehmet; Kabalcı, Ersan; Bülbül, H. İbrahim (IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA, 2015)This study concentrates on multi-time series and time scale modeling in wind speed and wind power forecasting. Different statistical models along with different time horizons are analyzed and evaluated broadly and ... -
Multi-Time Series and -Time Scale Modeling for Wind Speed and Wind Power Forecasting Part II: Medium-Term and Long-Term Applications
Çolak, İlhami; Sağıroğlu, Şeref; Yeşilbudak, Mehmet; Kabalcı, Ersan; Bülbül, H. İbrahim (IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA, 2015)This paper represents the second part of an entire study which focuses on multi-time series and -time scale modeling in wind speed and wind power forecasting. In the first part of the entire study [1], firstly, moving ... -
A New Quick Response Digital Control DC-DC Converter with Dynamic Unstable Gain
Furukawa, Yudai; Shirakawa, Takuya; Kurokawa, Fujio; Eto, Haruhi; Çolak, İlhami (IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA, 2015-11-22)In this paper, we present a new quick response digital control dc-dc converter based on a dynamic unstable gain to improve transient response. In the proposed method, the proportional gain is set to the small value in the ... -
A Novel Power Control Strategy for Wind-Driven Permanent Magnet Synchronous Generator Based on a Single Leg Multi-Mode Power Converter
Bayhan, Sertaç; Abu-Rub, Haitham; Çolak, İlhami (IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA, 2015-03-22)This paper presents a novel power control strategy for a hybrid power supply system consisting of wind-driven permanent magnet synchronous generator (PMSG) and energy storage device. In this study, a single leg multi-mode ... -
Performance Characteristic of Digital Peak Current Mode Control Switching Power Supply
Furukawa, Yudai; Maeda, Shusuke; Kurokawa, Fujio; Çolak, İlhami (IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA, 2015-09-08)The purpose of this paper is to discuss performance characteristic of digital peak current mode control switching power supply. The proposed method can capture the peak current value in real time by using the voltage ... -
Performance Characteristics of Digital Current Detector in DC-DC Converter
Furukawa, Yudai; Maeda, Shusuke; Kurokawa, Fujio; Çolak, İlhami (IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA, 2015)The purpose of this paper is to present a performance characteristics of digital current detector in dc-dc converter. The digital peak current mode control dc-dc converter using the voltage-controlled oscillator (VCO) has ... -
Seven Level Asymmetric Cascade Inverter with Space Vector PWM Added PR Control
Çolak, İlhami; Kabalcı, Ersan; Keven, Gökhan; (IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA, 2016)Inverters are used to convert the DC energy to AC energy for renewable energy conversation or high power industrial applications. Asymmetric inverters are preferred about their some advantages. Nowadays, control of inverters ... -
Voltage and Frequency Stability Analysis of AC Microgrid
Çolak, İlhami; Bayındır, Ramazan; Al-Nussari, Mohammed; Hossain, Eklas (IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA, 2015)Microgrid is a single controllable unit constituting distributed generation (DG) and load in the power system. The micro source includes photovoltaic (PV) cells, wind turbine, micro turbine, fuel cell, electric accumulator ...