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With regard to spatial-planning aspects, the following can be said: analysis of the legal regulation and contacts established with government's institutions brought to the conclusion that spatial-planning requirements represent the most restrictive limitations for small hydropower plants construction. It should be particularly stressed that these requirements differ from one location to another, so...
By applying new technologies of energy and DC distribution technology, the smart-grid based digital load device is increased. Due to the power conversion technology, the power consumption is minimized, maximize the utilization of self-development self-energy power consumption. Derive optimum efficiency power structure, and at the same time, the existing AC system with high quality bi-directional AC-DC...
In this study, following market penetration of PHEVs and EVs, the types of green car need to be supplied electricity externally, the efficient power charging infrastructure with a suggested charging monitoring system considering the smart grid system is proposed. PHEVs and EVs of green cars are used with electric supplied from Smart-Grid and stored in batteries. For the process, to establish stable...
Electricity consumption in households varies dependent on a lot of possible reasons such as lifestyle, family configuration, and weather. It is of great importance to optimize the electricity generation system to install for each household. In our previous work, we proposed a clustering approach for extracting a small number of basic electricity consumption patterns in a household. In this study,...
Smart grid systems, for being profitably implemented, will have to deliver advantageous results to costumers, investors and operators. This can be realised by providing efficient, secure and reliable systems, connecting distributed renewable energy sources and enabling advanced services. The analysis of those potential benefits should consider all the components of the smart grids from the energy...
Renewable energy sources have been an attraction for both researchers and scientists recently. In this study, a survey focused on renewable energy sources in Turkey has been presented. The survey has been conducted by researchers working in different scientific disciplines registered to Scientific and Technological Research Council of Turkey. The questionnaires have been prepared in order to explore...
One of the two hydro turbine-generator sets in small hydropower plant has become inoperable due to generator stator winding failure. Considering the age of the plant, together with generator repairs, more comprehensive plant refurbishment options have been analysed. The optimal solution is chosen, one that provides improved reliability, increased electricity production with best financial and economic...
In January 2009, Toyota City was chosen as Eco-Model City for the realization of low-carbon society. As a transport initiative for an Eco-Model City, Toyota City has installed charging facilities that utilize solar energy in order to promote the usage of eco-cars such as plug-in hybrid electric vehicles. The new solar charging system for Toyota City that combines the solar power storage unit with...
In this paper, a novel single-stage parallel topology power circuit is presented. It can be used in LED street lights for widely power range, from 80 W to 300 W. This topology contains two control methods. One is the constant-voltage feedback, and the other is the constant-current feedback. With this design, this power circuit can provide LED a stable constant current. Besides good stability in linear...
The objective of this paper is to investigate over/under-voltage protection (OVP/UVP) of passive islanding detection method of distributed generations in electrical distribution systems. The IEEE 14-bus system is simulated with Powerworld simulator. The studies show relationship between load and NDZ with DG in power system. The simulation results have showed that the change of load will affect the...
From the perspective of global warming suppression and depletion of energy resources, renewable energies, such as solar collector (SC) and photovoltaic generation (PV), are getting attention in distribution systems. Then, all electric houses with PV and HP are becoming widely used recently because of using time-of-day electricity rate system. If fixed battery can be introduced in the houses, the electricity...
Efficient utilisation of Storage Devices (SD) among multiple sources of dispatch within a typical microgrid have a substantial impact on reducing the economic and environmental generation costs in that particular microgrid. Eventually, managing the multiple sources that supply energy simultaneously is a big engineering challenge. The complexity rises due the uncertainty of demand, generation cost,...
The present paper introduces a power service discovery system. The power service discovery system realizes new power services on a smart grid. The new power services are based on the selection of generations, which enables us to provide/receive electricity under specific conditions. We describe the design and implementation of the power service discovery system. Our implementation constructs a demonstration...
This paper reviews the main technical, operational and economical aspects of a biogas plant. The analysis is focused on the key points of the biogas production process, the current situation of biogas plants in Europe and the advantages, risks and new trends of the production and use of biogas. The paper offers an integrated view of the different aspects involved in a biogas plant as source of renewable...
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