Browsing by Author "Gururaj, M.V."

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    A study on hybrid Renewable Energy Source interface to the non-ideal grid at distribution level with power quality improvements
    (Institute of Electrical and Electronics Engineers Inc., 2016) Jayasankar, V.N.; Gururaj, M.V.; Vinatha Urundady, U.
    Air pollution is one of the prominent issues that we are facing nowadays. The major contributor for air pollution is the waste output of power plants which uses fossil fuels to generate power. Urbanization and industrialization have changed the lifestyle of human society and the need for electrical energy has enhanced significantly. As the conventional energy sources are not capable of serving the purpose, the researchers have turned their face towards Renewable Energy Sources (RES). Energy sources are scattered across the globe, therefore the available green energy at the distribution level is also used to generate electricity. The hybrid combination of wind/solar systems has proved to be a reliable source to the utility. For extracting maximum power from the RES, battery bank is connected across it. Due to the problem associated with the chemical batteries the wind/solar hybrid combination is directly connected to the grid. There are many issues related to the interconnection of RES to the grid which are addressed with the growth in power electronics field. However the power quality issue occurs due to the presence of non-linear loads at the point of common coupling. Shunt active filter has proved to mitigate the problems associated with the non-linear loads. Researchers have limited their work to interconnection of RES to ideal grid voltages which is not the practical case. In this paper the wind/solar hybrid system is modeled and is interconnected to the unbalanced and distorted grid. Also, RES interfacing inverter is added with shunt active filter functionality and hence overall cost curtailment of the project can be achieved. © 2016 IEEE.
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    Interconnection of wind-solar hybrid Renewable Energy source to the 3 phase-3 wire distribution system along with power quality improvements at the grid side
    (2015) Gururaj, M.V.; Vinatha, U.; Jayasankar, V.N.
    Scarcity of power has been one of the nightmare issues for mankind in the modern age. Renewable Energy Sources (RES) working parallel with conventional power plants are playing a lead role in narrowing the difference between supply and demand. Among all the available renewable energy sources wind-solar hybrid systems are the most popular one. Due to their natural advantage of being complimentary to each other, they are assuring reliability to the utility. Power quality issues arising due to the usage of non-linear loads at the point of common coupling are addressed with the help of power electronic device interfacing RES to the grid. The work presented in this paper consists of Modeling and Simulation of wind-solar hybrid energy system and interfacing it to the grid through the interfacing inverter. A suitable control strategy which will add shunt active filter functionality to the RES interfacing device to the grid is also undertaken. � 2015 IEEE.
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    Interconnection of wind-solar hybrid Renewable Energy source to the 3 phase-3 wire distribution system along with power quality improvements at the grid side
    (Institute of Electrical and Electronics Engineers Inc., 2015) Gururaj, M.V.; Vinatha Urundady, U.; Jayasankar, V.N.
    Scarcity of power has been one of the nightmare issues for mankind in the modern age. Renewable Energy Sources (RES) working parallel with conventional power plants are playing a lead role in narrowing the difference between supply and demand. Among all the available renewable energy sources wind-solar hybrid systems are the most popular one. Due to their natural advantage of being complimentary to each other, they are assuring reliability to the utility. Power quality issues arising due to the usage of non-linear loads at the point of common coupling are addressed with the help of power electronic device interfacing RES to the grid. The work presented in this paper consists of Modeling and Simulation of wind-solar hybrid energy system and interfacing it to the grid through the interfacing inverter. A suitable control strategy which will add shunt active filter functionality to the RES interfacing device to the grid is also undertaken. © 2015 IEEE.
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    Investigations on interconnection of wind-solar hybrid Renewable Energy Source to the ideal grid at the distribution level together with power quality improvement features
    (Universitatea Politehnica din Timisoara blucretiu@yahoo.com, 2015) Gururaj, M.V.; Vinatha Urundady, U.
    one of the most challenging issues that modern man is facing nowadays is global warming and scarcity of fuel. To find a solution to the above problems the focus of research is directed towards Renewable Energy Sources (RES). Among all available RES the combination of wind-solar RES provides the most reliable solution to the utility as both of them are complimentary to each other. As all the energy sources including RES are scattered across the globe, it becomes necessity to extract available green energy at the distribution as well. Non-linear loads connected at the Point of Common Coupling (PCC) inject current harmonics into the system thereby pollutes the grid environment. Shunt active power filter is found to be one of the feasible solutions in addressing issues related to the non-linear loads. This paper deals with the study of integration of wind-solar hybrid energy system to the grid at the distribution level. Here the active power filter functionality has been added to the interfacing four leg inverter to reduce overall cost of the system. The system is studied under three different cases of RES=0, Load Demandd-Iq control strategy.
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    A study on hybrid Renewable Energy Source interface to the non-ideal grid at distribution level with power quality improvements
    (2016) Jayasankar, V.N.; Gururaj, M.V.; Vinatha, U.
    Air pollution is one of the prominent issues that we are facing nowadays. The major contributor for air pollution is the waste output of power plants which uses fossil fuels to generate power. Urbanization and industrialization have changed the lifestyle of human society and the need for electrical energy has enhanced significantly. As the conventional energy sources are not capable of serving the purpose, the researchers have turned their face towards Renewable Energy Sources (RES). Energy sources are scattered across the globe, therefore the available green energy at the distribution level is also used to generate electricity. The hybrid combination of wind/solar systems has proved to be a reliable source to the utility. For extracting maximum power from the RES, battery bank is connected across it. Due to the problem associated with the chemical batteries the wind/solar hybrid combination is directly connected to the grid. There are many issues related to the interconnection of RES to the grid which are addressed with the growth in power electronics field. However the power quality issue occurs due to the presence of non-linear loads at the point of common coupling. Shunt active filter has proved to mitigate the problems associated with the non-linear loads. Researchers have limited their work to interconnection of RES to ideal grid voltages which is not the practical case. In this paper the wind/solar hybrid system is modeled and is interconnected to the unbalanced and distorted grid. Also, RES interfacing inverter is added with shunt active filter functionality and hence overall cost curtailment of the project can be achieved. � 2016 IEEE.