Keskinkılıç, Ebubekir

Profile URL
https://hdl.handle.net/20.500.12573/2855
Name Variants
Ebubekir Keskinkılıç Keskinkilic, Ebubekir Keskinkılıç, Ebubekir
Job Title
Arş. Gör.
Email Address
ebubekir.keskinkılıc@agu.edu.tr
Main Affiliation
02.05. Elektrik & Elektronik Mühendisliği
Status
Current Staff
Website
ORCID ID
0000-0002-4913-6684
Scopus Author ID
59527150300
Turkish CoHE Profile ID
D88C6BE4356C3E90
Google Scholar ID
WoS Researcher ID
MUP-0757-2025
No research topics data found.

Sustainable Development Goals

NO POVERTY1
NO POVERTY
0
Research Products
ZERO HUNGER2
ZERO HUNGER
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GOOD HEALTH AND WELL-BEING3
GOOD HEALTH AND WELL-BEING
0
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QUALITY EDUCATION4
QUALITY EDUCATION
0
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GENDER EQUALITY5
GENDER EQUALITY
0
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CLEAN WATER AND SANITATION6
CLEAN WATER AND SANITATION
0
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AFFORDABLE AND CLEAN ENERGY7
AFFORDABLE AND CLEAN ENERGY
1
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DECENT WORK AND ECONOMIC GROWTH8
DECENT WORK AND ECONOMIC GROWTH
0
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INDUSTRY, INNOVATION AND INFRASTRUCTURE9
INDUSTRY, INNOVATION AND INFRASTRUCTURE
0
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REDUCED INEQUALITIES10
REDUCED INEQUALITIES
0
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SUSTAINABLE CITIES AND COMMUNITIES11
SUSTAINABLE CITIES AND COMMUNITIES
0
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RESPONSIBLE CONSUMPTION AND PRODUCTION12
RESPONSIBLE CONSUMPTION AND PRODUCTION
0
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CLIMATE ACTION13
CLIMATE ACTION
0
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LIFE BELOW WATER14
LIFE BELOW WATER
0
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LIFE ON LAND15
LIFE ON LAND
0
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PEACE, JUSTICE AND STRONG INSTITUTIONS16
PEACE, JUSTICE AND STRONG INSTITUTIONS
0
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PARTNERSHIPS FOR THE GOALS17
PARTNERSHIPS FOR THE GOALS
0
Research Products
Documents

2

Citations

1

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1

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Documents

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No records found in other affiliations.
Scholarly Output

3

Articles

1

Views / Downloads

116/55

Supervised MSc Theses

1

Supervised PhD Theses

0

WoS Citation Count

1

Scopus Citation Count

1

Patents

0

Projects

0

WoS Citations per Publication

0.33

Scopus Citations per Publication

0.33

Open Access Source

1

Supervised Theses

1

JournalCount
7th International Conference on Electric Power and Energy Conversion Systems -- NOV 12-14, 2024 -- U ARAB EMIRATES1
IEEE Transactions on Power Electronics1
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Scholarly Output Search Results

Now showing 1 - 3 of 3
  • Conference Object
    Citation - WoS: 1
    Citation - Scopus: 1
    Four Switch Buck-Boost Quasi Single-Stage Inverter With Smooth Mode Transition Using Three-Mod Modulation Technique
    (IEEE, 2024-11-12) Keskinkilic, Ebubekir; Tckgun, Burak; Tekgun, Burak
    Quasi-single-stage inverters (QSSI) attract attention due to their simple structure and bidirectional operation capability. However, in the buck-boost DC-DC conversion stage, smooth transition, and efficient conversion cannot be achieved when the output voltage is close to the input voltage with the traditional two-mode control method. This is due to the pulse width ratio limitations, and non-idealities of the active and passive components. In this paper, a comparative analysis of the mode transition techniques in QSSIs is presented using methods available for DC/DC converters. The system efficiency and output voltage signal quality are selected as the performance metrics as they are important performance parameters in many applications. A 2kW QSSI is controlled using single-mode, two-mode, and three-mode modulation techniques. Simulation and experimental studies are conducted for validation. Based on these studies, it is concluded that the single-mode modulation technique performed the best in eliminating dead zone effects and reducing total harmonic distortion (THD), whereas the two-mode modulation technique achieved the highest system efficiency. The three-mode modulation has superior performance on dead zone elimination compared to the two-mode modulation and better system efficiency than the single-mode modulation method. Experimental results indicate that the three-mode modulation achieved an efficiency of 91.12% with a THD of 3.73%.
  • Article
    Enhancing Mode Transition Dynamics in Non-Inverting Buck-Boost Inverters for PV Systems
    (Institute of Electrical and Electronics Engineers Inc., 2026) Keskinkilic, E.; Tekgun, B.
    Quasi-single-stage inverters (QSSIs) are notable for their simple structure and bidirectional operation capability in applications such as photovoltaic (PV) systems. Among these QSSI, the non-inverting buck-boost inverter (NIBBI) or four-switch buck-boost inverter (FSBBI) is often preferred due to its ability to perform both step-down and step-up operations. However, when traditional control is used, achieving a smooth transition and efficient conversion becomes challenging as the output voltage approaches the input voltage. The pulse width ratio limitations and non-idealities of active and passive components are the cause of this. In this paper, a comparative analysis of the mode transition techniques in FSBBI is presented using methods available for DC/DC converters. System efficiency and output voltage signal quality are selected as performance metrics. A 2-kW FSBBI is installed and controlled using single, two, modified two, three, and four-mode techniques. Simulation and experimental studies were conducted to validate the results. Based on these studies, the four-mode control technique was observed to be the most effective in eliminating dead zone effects, reducing total harmonic distortion (THD), and achieving the highest system efficiency in a PV system where a battery powers the AC load. Experimental results indicate that the four-mode modulation attained an efficiency of 95.49% with a THD of 2.97%. © 1986-2012 IEEE.
  • Master Thesis
    Yarı-Tek-Aşamalı Dört-Anahtarlı Alçaltıcı-Yükseltici Evirici için Pürüzsüz Mod Geçiş Tekniğinin İncelenmesi ve Geliştirilmesi
    (Abdullah Gül Üniversitesi, Fen Bilimleri Enstitüsü, 2023) Keskinkılıç, Ebubekir; Keskinkılıç, Ebubekir; Tekgün, Burak
    In recent decades, given the world's inevitable energy scarcity, increasing energy demand and green energy concerns, high efficiency energy conversion has become more important and attractive than ever, and researchers have directed their interest to energy-efficient converters. Inverters are a commonly utilized type of converter, which can be classified into two categories: single and two-stage inverters. Considering the inherent drawbacks of traditional inverters, a quasi-single-stage inverter (QSSI) has emerged. The QSSI uses a DC-DC converter to shape the rectified version of the desired AC waveform in the first stage and, in the second stage, it switches only once to alternate the polarity. It stands forward in terms of efficiency, control simplicity, and system stability. Among QSSI, a non-inverting buck-boost converter has drawn attention due to its capability to perform both step-up and down modes and its bidirectional power transfer feature. In the first stage of the QSS non-inverting buck-boost converter; smooth transitions between the buck and boost modes and efficient conversion cannot be achieved by the traditional two-mode control method when the output voltage level is close to the input voltage level due to various limitations, non-idealities, and disturbances. Many methods have been applied and studied in the literature to minimize or eliminate the effects of the region which is called the 'dead zone'. In this thesis study, further efficiency and THD improvement for the QSSI is targeted by employing a four-mode control method. The study incorporates a comparative study of the dead zone effects on inverter systems, which have not been previously documented in the literature. Moreover, it places a priority on optimizing efficiency and minimizing distortion in various applications—ranging from motor control and solar energy systems to grid-tied wind turbines and switched-mode power supplies—by comparing existing methods with open-loop voltage control. In conclusion, the theoretical results are verified with experimental studies.