Ertan, Hulusi Bülent
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Name Variants
Bülent Ertan H.
Ertan, HB
Ertan,H.B.
Ertan, H. B.
E.,Hulusi Bülent
Ertan, Hulusi Bulent
H.,Ertan
Bulent Ertan H.
ERTAN, HB
H. B. Ertan
H., Ertan
Ertan, H. Bulent
Hulusi Bulent, Ertan
Hulusi Bülent, Ertan
Ertan, Hulusi Bülent
E.,Hulusi Bulent
H.B.Ertan
E., Hulusi Bulent
Ertan H.
E., Hulusi Bülent
Bulent Ertan,H.
Ertan, HB
Ertan,H.B.
Ertan, H. B.
E.,Hulusi Bülent
Ertan, Hulusi Bulent
H.,Ertan
Bulent Ertan H.
ERTAN, HB
H. B. Ertan
H., Ertan
Ertan, H. Bulent
Hulusi Bulent, Ertan
Hulusi Bülent, Ertan
Ertan, Hulusi Bülent
E.,Hulusi Bulent
H.B.Ertan
E., Hulusi Bulent
Ertan H.
E., Hulusi Bülent
Bulent Ertan,H.
Job Title
Profesor Doktor
Email Address
bulent.ertan@atilim.edu.tr
Main Affiliation
Electrical-Electronics Engineering
Status
Website
ORCID ID
Scopus Author ID
Turkish CoHE Profile ID
Google Scholar ID
WoS Researcher ID
Scholarly Output
25
Articles
3
Citation Count
26
Supervised Theses
2
25 results
Scholarly Output Search Results
Now showing 1 - 10 of 25
Conference Object Citation - Scopus: 3Comparison of a Magnetically Geared Pm Wind Generator With Radial Flux Generator(Institute of Electrical and Electronics Engineers Inc., 2018) Zeinali,R.; Ertan,H.B.; Electrical-Electronics EngineeringDirect drive wind turbines promise to be more reliable and efficient than commonly used geared wind turbines. This paper presents part of a study aiming to identify whether 'Dual Stator Spoke Array Vernier Permanent Magnet' (DSSAVPM) generators present an advantage, regarding size or cost, as compared to the conventional radial flux PM machine for direct drive applications. For this purpose, design of both machines is optimized for the same specifications and using the same design criteria. optimization results are presented and discussed. It is found that a DSSVPM generator design, with almost the same performance as the RFPM generator, but with 45% of its mass is possible. © 2018 IEEE.Conference Object Citation - WoS: 3Integration of Offshore Wind Farm Plants To the Power Grid Using an Hvdc Line Transmission(Ieee, 2019) Berkani, Abderrahmane; Pourkeivannour, Siamak; Negadi, Karim; Boumediene, Bachir; Allaoui, Tayeb; Ertan, H. Bulent; Electrical-Electronics EngineeringThis paper investigates an integration of Offshore Wind Farm Plants with Power Grid Based on an HVDC line Interconnection. Large offshore wind farms are installed in the North Sea area using modern multi-megawatt wind turbines. The Voltage source converter - high voltage direct current VSC-HVDC is a suitable means of integrating such large and distant offshore Wind Power Plants (WPP) which need long submarine cable transmission to the onshore grid. The offshore network then becomes very different from the conventional grid, in that it is only connected to electronic power converters. A wind farm model with VSC-HVDC connection is developed. This work presents the modeling and simulation of such a system. The dynamic study of system performance under the fluctuations of wind energy and wind speed was studied to demonstrate the effectiveness of the control strategy. The validity of the proposed control technique is verified by Matlab/Simulink. Simulation results presented in this paper confirm the validity and feasibility of the proposed control approach, and can be tested on experimental setup.Master Thesis Tyre Slip Control Methods for Electric Vehicles(2021) Javed, Nofal; Ertan, Hulusi Bülent; Alhajdıbo, Moustapha; Electrical-Electronics EngineeringBu araştırmanın amacı, Matlab'ın Simulink'inde bir elektrikli araç modeli oluşturmaktır. Değerlendirmeye alınan araç tipi 4×4 tamamı tek teker çalışan akülü elektrikli araçlardır 1080 kg boş ağırlığa sahip araç, tüm tekerlekler aynı yol koşullarında çalışır. Newton'un hareket yasası, modeli tasarlarkenki temel yaklaşımdır. Çekiş kontrol sistemi (TCS) ile birlikte kilitlenmeyi önleyici fren sistemi (ABS), modelin şemasını oluşturan birincil bakış açısı olarak takip edilen kontrol teknikleridir. Model oluşturulduktan sonra simülasyon sonuçları farklı parametreleri verir, yani uzunlamasına hız, yanal hız, sapma hızı, uzunlamasına ivme, yanal ivme, sapma ivme, elektrikli bir aracın tekerleklerine etki eden farklı türden kuvvetler vb. Araştırmanın amacı, elektrikli aracın slip değerini (senkronize hız ve rotor hızının arasındaki fark) bulmaktır. Takip ettiğim lastik modeli Pacejka lastik modelidir, bir diğer deyişle sihirli lastik formülü. Slip, farklı direksiyon değerleri uygulayarak farklı sonuçlar verir, direksiyon açısı değerleri -30º ila + 30º arasında alınır. Slip de farklı yol koşullarına, örneğin ıslak, kuru, karlı veya buzlu olmasına bağlı olarak değişir. Önerilen modelde kuru yol koşulları dikkate alınmıştır. Slip elde edildikten sonra üç farklı kontrolör yaklaşımı ayrı ayrı sağlanmıştır. Önerilen kontrolör teknikleri orantılı-integral-türev kontrolör (PID), kayan mod kontrolörü (SMC) ve bulanık mantık kontrolörüdür (FLC). farklı yol koşulları (yani kuru asfalt, ıslak asfalt, kar ve buz) dikkate alınır. Kayma aralığı her zaman 0 ile 1 arasındadır. Üç tip kontrolör de geri besleme kontrolörleridir, bu da elde edilen çıktının elde edilen hatayı en aza indirmek için kontrolöre girdi olarak geri verileceği anlamına gelir. Kontrolörler, yani PID, SMC ve FLC uygulandığında, üç ayrı kontrolörün tümünün sonuçları elde edilir ve ardından karşılaştırmalar, her bir kontrolörden tek tek gerçekleştirilir. Önerilen elektrikli araç üzerinde gerçekleştirilen sonuçlar, FLC'nin üç kontrolör tekniği arasında en iyi sonucu verdiği yönündedir.Article Citation - WoS: 9Citation - Scopus: 9A Model for the Prediction of Thermal Runaway in Lithium-Ion Batteries(Elsevier, 2024) Azuaje-Berbeci, Bernardo J.; Ertan, H. Bulent; Electrical-Electronics EngineeringThe increasing popularity of electric vehicles is driving research into lithium -ion batteries (LIBs). Thermal runaway (TR) in LIBs is a serious concern for the safe operation of these high-energy-density batteries that is yet to be overcome. A reliable model is needed to predict voltage variation, heat generation, temperature rise, and the process leading to TR of a LIB battery under its operating conditions (charging-discharging). Such a model can be used to design battery packs more resilient to thermal runaway or assess how a battery pack would perform under hazardous conditions. Furthermore, it can be used for generating a warning signal if there is a possibility of the battery going towards TR. This paper presents an approach to solving this problem, which is not currently well addressed in the literature. The approach adopted in this paper is based on a numerical analysis of a multilayered electrochemical-thermal model of LIB. Tuning the parameters of a LIB for accurate results from this numerical model is presented, as well as the details of the approach in the paper. Experiments are performed under several LIBs, and their voltage and surface temperature variations are measured under various operating conditions, including thermal runaway. The results of the experiments are compared with the predictions of the numerical simulations. An excellent agreement is observed with the experimental results, proving the accuracy of the proposed approach. This approach can be configured to give results in a few minutes. The paper also discusses how the developed approach can be used to create a TR warning during operating conditions or to change the mode of operation of a LIB before a hazard occurs.Conference Object Citation - Scopus: 1Sizing of Series Hybrid Electric Vehicle With Hybrid Energy Storage System(Institute of Electrical and Electronics Engineers Inc., 2018) Ertan,H.B.; Arikan,F.R.; Electrical-Electronics EngineeringThis work is aimed to develop a realistic design procedure for a series hybrid plug in vehicle, with a view to use it in a mathematical design optimization. The purpose of the optimization is minimizing the initial cost, as well as the running costs of the vehicle. Therefore there is a multi-objective design optimization problem in hand. Such problems are very suitable for mathematical optimization, however, accurate and not time consuming design procedure is a must, to obtain meaningful results. This paper introduces such a design procedure. The approach is illustrated on a commercial vehicle simulation model. The accuracy of the model is illustrated by comparing simulation results with vehicle test results. © 2018 IEEE.Conference Object Citation - Scopus: 4Magnetically geared direct drive wind generator thermal analysis(Institute of Electrical and Electronics Engineers Inc., 2017) Zeinali,R.; Ertan,H.B.; Yamali,C.; Tarvirdilu-Asl,R.; Electrical-Electronics EngineeringThis paper considers Dual Stator Spoke Array Vernier Permanent Magnet (DSSA-VPM) generator for the direct drive wind-electric energy conversion. The structure of the generator is described. Although how this design is optimized is not discussed, dimensions of the designed generator are given. In electrical machine design thermal performance is naturally of utmost importance. In this paper thermal performance of the design and how its temperature can be kept within the temperature limit imposed by its insulation class and the permanent magnets used is investigated. It is found that when air flow within the generator is not permitted, at rated load condition the generator temperature reaches very high levels. To lower the operating temperature, ventilation holes are introduced to the end plates of the frame. Also some blades are placed on the rotor to help flow of air over the end windings. A model is introduced to calculate the air speed in the region where air flows. Using the calculated air speed a new heat transfer coefficient is determined for the region where air flows. It is found out that with the mentioned modifications to the structure of the generator the designed generator temperature rise can be kept within the value permitted for its insulation class. Therefore, the power density of the design can be safely compared with the power density of other types of designs for direct drive turbines. It is found that DSSA-VPM generator topology offers a clear advantage over other types of generators considered in the literature. © 2017 IEEE.Conference Object Citation - WoS: 0An Approach for Improving Performance of Sensorless Field Control(Ieee, 2018) Ertan, H. Bulent; Filci, Tayfun; Electrical-Electronics EngineeringSensorless vector control is preferred in some applications, because there is no need for speed or position sensor. However, by their very nature, they are susceptible to making position error in rotor position estimation. As a consequence the performance of motor drives employing this technology is lower than those which employ sensors. This paper presents a new approach which identifies and uses rotor slot harmonic current component in the stator current to identify rotor position. The time taken by the algorithm used is short enough to be embedded within the vector control algorithm. The essence of the algorithm is treating the current component due to rotor slot harmonics as an amplitude modulated signal on the fundamental current component. The magnitude of this current component is identified via demodulation. Using this information rotor position and speed can be determined. This approach is tested on a commercial induction motor and some results are presented which illustrate that rotor position can be successfully determined.Editorial Citation - Scopus: 0Acemp-Optim 2019 Opening Speech(Institute of Electrical and Electronics Engineers Inc., 2019) Bulent Ertan,H.; Electrical-Electronics Engineering[No abstract available]Conference Object Citation - WoS: 1Fem-Based Design Modifications and Efficiency Improvements of a Brushed Permanent Magnet Dc Motor(Ieee, 2017) Tarvirdilu-Asl, Rasul; Zeinali, Reza; Ertan, H. Bulent; Electrical-Electronics EngineeringThis paper describes design modifications of a brushed permanent magnet DC motor. Test motor is modeled using a Finite Element Method (FEM) based software. Model accuracy is investigated by comparing measurement and simulation results. Reducing material consumption in motor fabrication while the motor develops the desired torque at a higher efficiency is aimed in this paper. Modifications are done in three stages and simulations results are also presented. These results are also compared to simulation results of the test machine.Conference Object Citation - WoS: 2Magnetically Geared Direct Drive Wind Generator Thermal Analysis(Ieee, 2017) Zeinali, Reza; Ertan, H. Bulent; Yamali, Cemil; Tarvirdilu-Asl, Rasul; Electrical-Electronics EngineeringThis paper considers Dual Stator Spoke Array Vernier Permanent Magnet (DSSA-VPM) generator for the direct drive wind-electric energy conversion. The structure of the generator is described. Although how this design is optimized is not discussed, dimensions of the designed generator are given. In electrical machine design thermal performance is naturally of utmost importance. In this paper thermal performance of the design and how its temperature can be kept within the temperature limit imposed by its insulation class and the permanent magnets used is investigated. It is found that when air flow within the generator is not permitted, at rated load condition the generator temperature reaches very high levels. To lower the operating temperature, ventilation holes are introduced to the end plates of the frame. Also some blades are placed on the rotor to help flow of air over the end windings. A model is introduced to calculate the air speed in the region where air flows. Using the calculated air speed a new heat transfer coefficient is determined for the region where air flows. It is found out that with the mentioned modifications to the structure of the generator the designed generator temperature rise can be kept within the value permitted for its insulation class. Therefore, the power density of the design can be safely compared with the power density of other types of designs for direct drive turbines. It is found that DSSA-VPM generator topology offers a clear advantage over other types of generators considered in the literature.
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