Ahmet Masum Hava

E-mail

hava@metu.edu.tr

Department

Department of Electrical and Electronics Engineering

ORCID

0000-0001-6393-8299

Scopus Author ID

6601988934

Web of Science Researcher ID

AAZ-9545-2020

Inductor Saturation Compensation in Three-Phase Three-Wire Voltage-Source Converters via Inverse System Dynamics Ozkan, Ziya; Hava, Ahmet Masum (2021-01-01) In three-phase three-wire (3P3W) voltage-source converter (VSC) systems, utilization of filter inductors with deep saturation characteristics is often advantageous due to the improved size, cost, and efficiency. However, w...
Inductor Saturation Compensation With Resistive Decoupling for Single-Phase Controlled VSC Systems ÖZKAN, ZİYA; Hava, Ahmet Masum (Institute of Electrical and Electronics Engineers (IEEE), 2020-02-01) In voltage-source converter systems, utilization of filter inductors with deep saturation characteristics is often advantageous because of the improved size, cost, and efficiency. However, with the use of conventional curr...
Current control of single-phase VSC systems with inductor saturation using inverse dynamic model-based compensation Ozkan, Ziya; Hava, Ahmet Masum (Institute of Electrical and Electronics Engineers (IEEE), 2019-12-01) In voltage-source converter (VSC) systems, utilization of filter inductors with deep saturation characteristics is often advantageous due to the improved size, cost, and efficiency. However, with the use of conventional cu...
Comparative Power Loss Analysis of DCM Flyback Transformer Based on FEA, Numeric Simulation, Calculation and Measurements Onay, Halil; Suel, Volkan; Ozgen, Tayfun; Hava, Ahmet Masum (2019-01-01) The flyback transformer is a crucial part of the flyback converter, which has the highest portion of total power losses for most applications. Accurately prediction of the power losses due to flyback transformer early in t...
Evaluation of Grid-Connected PV Converter Power Module Technologies in Terms of Efficiency, Initial Cost, and Return on Investment Time Oztoprak, Oguzhan; Hava, Ahmet Masum (2019-01-01) The voltage source converter (VSC) of the grid connected photovoltaic (PV) systems is the most technological component in a PV system and contributes to 5-15% of the whole investment. As the cost and energy efficiency of a...
A Basic Power Electronic Laboratory Experiment Allowing Comprehensive and Structured Learning: Multi-Phase Capacitive Loaded Full-Bridge Rectifier Oztoprak, Oguzhan; Hava, Ahmet Masum (2018-08-30) This paper provides a compact and fundamental level power electronics laboratory experiment about capacitive loaded three single-phase full-bridge diode rectifiers. While the procedure of the experiment is simple, the expe...
Optimal Design of Grid-Connected Voltage-Source Converters Considering Cost and Operating Factors Kantar, Emre; Hava, Ahmet Masum (2016-09-01) This paper assesses the feasibility of three-phase pulse-width modulated (PWM) three-level voltage-source converters (VSC), namely neutral-point-clamped (3L-NPC) and T-type (3L-T) as alternatives to two-level converter (2L...
LCL-Filter Design for Low-Voltage High-Power Grid-Tied Voltage-Source Converter Considering Various Damping Methods Kantar, Emre; Hava, Ahmet Masum (2016-06-30) The limited switching frequency, size and weight concerns, and the stringent limits for the injected grid current harmonics challenge the implementation of LCL grid filters for low-voltage multi-megawatt (multi-MW) renewab...
Performance Evaluation and Selection of PWM Switching and Control Methods for Grid Connected Modular Multilevel Converters Ciftci, Baris; Hava, Ahmet Masum (2015-09-24) This paper focuses on the determination of suitable carrier based pulse width modulation (PWM) switching and control methods for grid connected modular multilevel converters (MMCs). Characterization of various level-shifte...
Output Ripple Performance Evaluation and Comparison of 2L-VSI and 3L-VSI Considering the Spectral Characteristics Özkan, Ziya; Hava, Ahmet Masum (2015-06-05) In this paper, two-level and three-level voltage source inverters (2/3L-VSIs) with popular pulse width modulation (PWM) methods are investigated in terms of their output (ac-side) voltage and current ripple spectral charac...

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