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The advanced communication and control technologies in smart grids enable end users to actively participate in balancing supply and demand in response to electricity tariff changes by controlling their electricity consumption through demand response (DR) programs. In order to further exploit the cost-saving potential in residential houses, home energy management (HEM) systems have gained increasing...
This study compares different switching techniques for Silicon Carbide (SiC) MOSFET assisted Silicon (Si) IGBT based hybrid snitch and presents the effect of hybrid switch control techniques on the efficiency improvement. The hybrid switch which parallels a IGBT with a SiC MOSFET is proposed as a solution to improve the light load efficiency. The hybrid switch combines desirable properties both IGBT...
This study compares different switching techniques for Silicon Carbide (SiC) MOSFET assisted Silicon (Si) IGBT based hybrid switch and presents the effect of hybrid switch control techniques on the efficiency improvement. The hybrid switch which parallels a IGBT with a SiC MOSFET is proposed as a solution to improve the light load efficiency. The hybrid switch combines desirable properties both IGBT...
This paper compares Silicon Carbide (SiC) MOSFET and IGBT based electric vehicle (EV) traction inverters by considering the cost and efficiency of these two inverters. Commercially available SiC MOSFET CCS50M12CM2 (1200V / 50A) from Cree and IGBT PM50RL1A120 (1200V / 50A) from Powerex are modeled in detail in PSIM to obtain efficiency curves of inverters under different load conditions. The gained...
A building energy management (BEM) system is a core hardware/software platform that enables demand response applications for building operators in the smart grid environment. This paper presents the BEM algorithm that is designed to be robust against communication failures and data errors. It has been implemented in the smart building located at Yildiz Technical University in Istanbul, Turkey, and...
This study presents real word drive cycles in Istanbul, Turkey and analyzes the impact of these real road conditions on the performance of an electric vehicle. For this purpose, five different drive cycles has been obtained by collecting data for different traffic conditions in Istanbul. Both the velocity of the vehicle and the gradient of the road are considered. Also, a simplified dynamic vehicle...
This study presents the effect of efficiency improvement of wind turbine inverters-especially at low wind velocities-on generated wind energy. In order to present a detailed analysis, actual wind speed data is collected with one minute resolution in Istanbul, Turkey. The wind data is gathered at 10 meters and then projected to 30 meters. Technical data of a 20 kW wind turbine system is used to model...
Recently, ideas like smart cities, smart buildings/homes has been widely used under smart grid concept, which is a new research area that combines power systems and information technology (IT). The basic building block of the smart grid can be considered as “smart home”. Smart grid infrastructure with smart homes will allow to monitor electrical demand of a city or a residential customer and to achieve...
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