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Scarcity of fossil fuels and pressing environmental concerns are the main driving factors towards the paradigm shift from conventional to contemporary means of energy harnessing. Likewise, transportation sector is also undergoing a tantamount change with electric vehicles now seen as an alternate to conventional internal combustion engine vehicles with the additional advantage of supplying power to...
The increase in solar system installation worldwide has forced engineers to improve the overall efficiency of the system. The system consists of a power conditioning unit mostly which compromises of converters and filters in addition to panels themselves. The paper presents the simulations and discussions upon the improvement of hard switching using GaN transistors with various loads and frequencies...
Generator Excitation System is used to provide the DC supply to the field winding for producing the magnetic field in the generator. It is considered as a main part and backbone of the generator. Excitation system also provides stability of the power system by controlling the system voltages which can be enhanced for considering some key factors. In this paper performance evaluation of new static...
Integration on large scale of distributed generation into the distribution system can change the role of system from passive to active but also show significant changes in planning approach, distribution network operations and designing. Planning approach that is being used for today's distribution system can't fulfill the integration method for distributed generation and conventional system in an...
Exponential escalation in the energy requirements and depletion of mineral resources has forced scientists to recycle and find the most optimized way of using the mineral resources left on earth. Transformers are the most mineral consuming devices of the power distribution systems as the use of core and winding has a high mineral content. In this paper a solution has been proposed to solve this problem...
Risk of global climate change and confronting of tumbling carbon emissions necessitate new ways to collaboratively control and optimize energy production and load. Uncertainty in generation and demand for electric energy require elastic generation capacity and stochastic optimization of generation schedules. The introduction of time-variable energy tariffs is a loom to attract consumers to shift their...
An accurate digital distance relaying scheme integrated with artificial neural network impedance estimator is developed using the weighted sum of the negative-zero sequence components of fault current assuming the voltage and current are in phase at the fault location. The modified scheme is immune to the variation in fault location for under reach and overreach problem caused by sequence current...
Generation expansion planning (GEP) problem involves determining new power plants in terms of type, capacity and allocation for meeting future load demands. The GEP problem incorporates large number of constraints and it is a highly complex, large scale, non linear optimization problem. Large scale integration of Renewable Energy systems (RES) in GEP problem has always been averted by the high cost...
With the development of Smart Grids worldwide, efforts have been focused on optimizing the role of Smart Grid in the present electrical system. The integration of renewable energy resources to the grid presents a great challenge since they are intermittent and vary constantly causing frequency fluctuations. Automatic Generation Control (AGC) solves this problem by keeping the frequency close to nominal...
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