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A novel intelligent decision support tool for average wind speed clustering

Colak, Ilhami; Kabalci, Ersan; Kahraman, Hamdi Tolga; Yeşilbudak, Mehmet (2011)

The utilization ratio of wind energy, which is one of the renewable energy sources, is increased around 25% since last 15 years. However, the parameters such as performance of wind turbines and climate features are not ...
An agglomerative hierarchical clustering tool for renewable energy sources

Colak, Ilhami; Kabalci, Ersan; Bulbul, Halil Ibrahim; Yeşilbudak, Mehmet (2011)

The wind power based energy generation technologies are intensively studied in renewable energy generation issues since last century. The main demands directed to a renewable energy source are being reliable, sustainable ...
Comparison of a two-phase interleaved boost converter and flyback converter

Boyar, Aydin; Kabalci, Ersan; Boyar, Aydın (IEEE, 2018-11-08)

A big majority of electricity energy is generated from naturel sources such as coal, petroleum etc. in all over the world. The reserve of this sources are decreasing. However, the demand of electricity is increasing day ...
Design and analysis of a micro inverter for PV plants

Kabalci, Ersan; Boyar, Aydin; Kabalci, Yasin; Boyar, Aydın (IEEE, 2017-12-07)

Renewable energy sources are obviously accepted as clean energy sources of future. The solar energy is the most popular among other renewable energy sources in all over the world. Many studies are performed on photovoltaics ...
Design and analysis of a two-phase interleaved boost converter based microinverter

Boyar, Aydin; Kabalci, Ersan; Boyar, Aydın (IEEE, 2018-11-08)

Renewable energy sources (RESs) are extensively researched nowadays. There are many reasons for this such as air pollution, depletion of energy resources, and decreasing fossil fuels. One of the most widely used RES plant ...
Design and comparison of MPPT controllers with fuzzy logic and particle swarm optimization for PV power conversion

Kabalci, Ersan; Boyar, Aydin; Boyar, Aydın (IEEE, 2020-12-17)

The string and micro inverters are the widely used new device topologies in solar power conversion. In many solar inverters, the dc/dc converter is used in a two-stage structure, and are operated by a single maximum power ...
Design of a parameter determination system for non-isolated converter topologies

Colak, Ilhami; Irmak, Erdal; Kabalci, Ersan; Yeşilbudak, Mehmet (2011)

Nowadays, power electronics systems developed need small size, reliable, high quality and efficient switch mode power supplies. However, switch mode power supplies also require determining the operating parameters accurately ...
Multi-time series and multi-time scale modelling for wind speed and wind power forecasting-Part I: Statistical models, very short-term and short-term applications

Colak, Ilhami; Sagiroglu, Seref; Kabalci, Ersan; Bulbul, Halil Ibrahim; Yeşilbudak, Mehmet (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 multi-time scale modelling for wind speed and wind power forecasting-Part II: Medium-term and long-term applications

Colak, Ilhami; Sagiroglu, Seref; Kabalci, Ersan; Bulbul, Halil Ibrahim; Yeşilbudak, Mehmet (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 ...
Very short term pitch angle optimization in wind turbines: A machine learning approach

Kabalci, Ersan; Sagiroglu, Seref; Colak, Ilhami; Yeşilbudak, Mehmet (2013)

This paper proposes a pitch angle forecasting model based on the k-nearest neighbor classification. Air temperature, atmosphere pressure, wind direction, wind speed, rotor speed and wind power parameters were represented ...