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Subject: Electrical Engineering × End date: 2017 × Start date: 2013 × Thesis Type: M.Tech. ×
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    ThesisItemOpen Access
    Study of shunt active filter for the harmonic current compensation of nonlinear load using PQ theory
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2017-07) Pandey, Deepak; Goel, S.K.
    Due to the intensive use of power converters and other non-linear loads in industry and by consumers in general, it can be observed an increasing deterioration of the power systems voltage and current waveforms. The presence of harmonics in the power lines results in greater power losses in distribution, interference problems in communication systems and, sometimes, in operation failures of electronic equipments, which are more and more sensitive since they include microelectronic control systems, which work with very low energy levels. Because of these problems, the issue of the power quality delivered to the end consumers is, more than ever, an object of great concern. International standards concerning electrical power quality impose that electrical equipments and facilities should not produce harmonic contents greater than specified values, and also specify distortion limits to the supply voltage. Meanwhile, it is mandatory to solve the harmonic problems caused by those equipments already installed. Passive filters have been used as a solution to solve harmonic current problems, but they present several disadvantages, namely: they only filter the frequencies they were previously tuned for their operation cannot be limited to a certain load; resonances can occur because of the interaction between the passive filters and other loads, with unpredictable results. To cope with these disadvantages, recent efforts have been concentrated in the development of active filters. This thesis present the analysis of Shunt Active Filter for harmonic current compensation based on instantaneous active and reactive power theory through MATLAB/Simulink tool.
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    ThesisItemOpen Access
    Design and feasibility analysis of 30 KW GCPV and wind-solar hybrid system
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2017-07) Naveen Kumar; Goel, S.K.
    With the increasing energy demand and target of climate pledge to cut down the carbon emissions of its GDP by 33 to 35 percent by 2030 from 2005 levels has forced India to move with renewable sources of power generation. As solar and wind are the most promising sources of renewable energy but geographically solar is feasible at almost every place in India. There is an issue with solar power that it is available only with emergence of sun. Wind-solar hybrid is a better option as the reliability of system is higher than any of the single component. This is necessary to find out the overall comparison of these two types of grid connected plant before installation. So this has given the idea of technical and financial analysis of both types of plants at different geographical location. GCPV plant is designed with the help of PV*SOL simulator while the output of hybrid system is analyzed in MS excel. Result shows that small GCPV is commercially feasible at all selected geographical location. Further, hybrid system has higher reliability and can be installed at where power cut is unavoidable, but at higher capital and operating cost.