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Browsing Elektrik-Elektronik Mühendisliği Bölümü by Title

Browsing Elektrik-Elektronik Mühendisliği Bölümü by Title

Now showing items 150-169 of 189

PAPR reduction based on partial transmit sequence technique in UFMC waveform

Taşpınar, Necmi; Şimşir, Şakir (2019)

In this paper, the partial transmit sequence (PTS) technique known as one of the most efficient peak to average power ratio (PAPR) reduction schemes is applied to the recently proposed fifth generation (5G) waveform candidate ...
PAPR reduction of filter bank techniques for 5G communication systems

Ramavath, Srinivas; V. Jha, Amitkumar; Chandra, Umesh; Appasani, Bhargav; Kabalcı, Yasin; Kabalcı, Ersan (Springer, 2020-08-12)
PAPR reduction using selective mapping scheme in universal filtered multicarrier waveform

Şimşir, Şakir; Taşpınar, Necmi (2020)

In this paper, the selective mapping (SLM) technique possessing the powerful and distortionless peak to average power ratio (PAPR) reduction capability was employed in universal filtered multicarrier (UFMC) waveform that ...
Partitional clustering-based outlier detection for power curve optimization of wind turbines

Yeşilbudak, Mehmet (2016)

Wind turbine power curves are greatly important for monitoring the turbine performance, forecasting the power generation and mitigating the system unreliability. However, the presence of abnormal values in the power curves ...
Peak point detection of phase-to-phase effective voltages for smart grids: A comparative study

Colak, Alperen Mustafa; Shibata, Yuichiro; Kurokawa, Fujio; Ermis, Salih; Bayindir, Ramazan; Yeşilbudak, Mehmet (2017)

Smart grid systems include many different power sources such as renewable and fossil energy basis. While collecting all type of energy on the grid, phase order, frequency, maximum voltage value and synchronization time of ...
Performance comparison of different machine learning algorithms on the prediction of wind turbine power generation

Eyecioglu, Onder; Hangun, Batuhan; Kayisli, Korhan; Yeşilbudak, Mehmet (2019)

Over the past decade, wind energy has gained more attention in the world. However, owing to its indirectness and volatility properties, wind power penetration has increased the difficulty and complexity in dispatching and ...
Performance evaluation of P&O, IC and FL algorithms used in maximum power point tracking systems

Gökkuş, Göksel; Kulaksız, Ahmet; Alhajomar, Fuad (International Conference on Engineering Technologies (ICENTE’18), 2018-10-26)

With the rapid increase of the requirement of electricity demand throughout the world, renewable energy resources (RERs) particularly solar photovoltaic (PV) is a viable alternative to mitigate the global energy crisis. ...
Phase-only pattern nulling of linear antenna arrays with the use of a bacterial foraging algorithm

Guney, Kerim; Başbuğ, Suad (2008)

In this paper, a bacterial foraging algorithm (BFA) has been used for null steering in the antenna radiation pattern by controlling only the element phases of a linear array. The BFA is an optimization algorithm based on ...
Pilot tones design using Grey Wolf Optimizer for OFDM-IDMA system

Şimşir, Şakir; Taşpınar, Necmi (2017)

Since the channel estimation performance is affected directly by the positions of pilot tones, the optimization of pilot placement process known as having quite important role on minimizing the estimation errors has become ...
Pilot tones design using particle swarm optimization for OFDM-IDMA system

Taşpınar, Necmi; Şimşir, Şakir (2019)

Since the channel estimation performance is directly affected by the pilot positions, it has been a major task in multicarrier transmission schemes to adjust the pattern of pilot distribution for the purpose of minimizing ...
Power system flexibility and resiliency

Kabalcı, Ersan (Springer Nature, 2018-08-17)

The flexibility of the power system can be described with its ability on providing dynamic and adaptable structure against the various circumstances. It requires balancing the power supply and demand in terms of intervals ...
Prediction of solar radiation using meteorological data

Demirtas, Mehmet; Sagiroglu, Seref; Colak, Ilhami; Yeşilbudak, Mehmet (2012)

Solar radiation prediction has a great importance in electricity generation from solar energy and helps to size photovoltaic power systems. Therefore, the solar radiation parameter was predicted at 10-min intervals in this ...
Protective systems in DC microgrids

Kabalcı, Ersan (Springer, 2020)

The aging power system causes to several grid problems such as intermittency, power quality issues, and blackouts since a few decades. Therefore, the power infrastructure requires serious troubleshooting studies in a wide ...
Rapid control prototyping based on 32-Bit ARM Cortex-M3 microcontroller for photovoltaic MPPT algorithms

Kulaksız, Ahmet; Gökkuş, Göksel; Alhajomar, Fuad (International Journal of Renewable Energy Research (IJRER), 2019-12-29)

Since the beginning of the war in Syria, most of the electricity infrastructure has been destroyed, leaving millions with unreliable energy. Syrians have encountered high electricity production costs and environmental ...
Reactive power compensation in AC power systems

Kabalcı, Ersan (Springer Nature, 2017-04-07)

This chapter introduces most widely used reactive power compensators considering the recent advances seen in industrial applications. In order to provide better and deeper knowledge for authors, the basic principles of ...
Recognition of wind speed patterns using multi-scale subspace grids with decision trees

Wani, M. Arif; Yeşilbudak, Mehmet (2013)

The wind speed patterns are essential and indispensable requirement for the efficient utilization of the wind power generated by wind turbines. For this reason, this paper proposes a new approach in order to recognize the ...
Remote monitoring system design for photovoltaic panels

Kabalcı, Ersan; Kabalcı, Yasin (IEEE, 2017-04-24)

The design and implementation studies of a remote monitoring system are presented in this study. The proposed design is improved in terms of smart metering infrastructure based on current, voltage, and power measurements. ...
Review on novel single-phase grid-connected solar inverters: Circuits and control methods

Kabalcı, Ersan (Elsevier, 2020-03-01)

An ever-increasing interest on integrating solar power to utility grid exists due to wide use of renewable energy sources and distributed generation. The grid-connected solar inverters that are the key devices interfacing ...
Seeker optimization algorithm for interference suppression of linear antenna arrays by controlling position‐only, phase‐only, and amplitude‐only

Guney, Kerim; Başbuğ, Suad (2011)

In this article, a stochastic search technique based on seeker optimization algorithm (SOA) is proposed for null steering of linear antenna arrays by controlling the position‐only, phase‐only, and amplitude‐only. The SOA ...
Simulation and design of three-level cascaded inverter based on soft computing method

Sunter, Sedat; Kocalmış Bilhan, Ayşe (2020-04)

This paper presents the development and performance testing of the three-level inverter used in distributed power generation systems or Hybrid / Electric /Fuel Cell Vehicles, employing the Space Vector Pulse Width Modulation ...