Conference Papers

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Subject: search.filters.subject.hybrid energy system

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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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    Hybrid PV/wind energy system with a centralized DC bus architecture and power regulation
    (Institute of Electrical and Electronics Engineers Inc., 2016) Sherpa, L.; Vinatha Urundady, U.; Rai, B.
    This paper presents a model of hybrid energy system (HES) consisting of wind energy system (WES) and solar photovoltaic (PV) solar system connected with the grid and its performance is examined under load variation and systems input parameters. A centralized DC bus Architecture power generation is used for the proposed HES that includes a Shockley diode equation PV array and wind turbine driven by a PMSG, along with a separate DC-DC converters, a three-phase diode rectifier bridge, a dc bus and voltage source inverter (VSI) with a current regulated PWM. For a proper interfacing with the grid a suitable power conditioning system has to be implemented. The utility grid generally requires the generation of high quality electric power. A three-phase DCAC voltage source inverter (VSI) using IGBTs is employed in interfacing with the grid through sinusoidal pulse width modulation (PWM) techniques. The main objective in this paper is the analysis of HES interfaced with grid and with PQ control technique of VSI output and filtering out the high frequency harmonics produced at inverter terminal using LC filter. The performances of proposed HES are examined under dynamic conditions such as changes in input parameters and changes in load. The applicability of these HES is completely modeled and analyzed in MATLAB/Simulink environment and output results obtained are examined to be of satisfactory. © 2015 IEEE.
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    Implementation of adaptive fuzzy controller in a grid connected wind-solar hybrid energy system with power quality improvement features
    (Institute of Electrical and Electronics Engineers Inc., 2016) Jayasankar, V.N.; Vinatha Urundady, U.
    Energy demand increases rapidly, utilization of renewable energy resources plays an important role in narrowing down the supply-demand difference. Introduction of more power electronic devices and non-linear loads pollutes the grid and create power quality problems. Both the scarcity of energy problem and power quality problem can be simultaneously solved by using the grid interfacing inverter of renewable sources, as a shunt active filter. A suitable control strategy has to be used for giving grid interfacing inverter, the power of power quality improvement. Conventional PI controller can be replaced with a fuzzy controller for better control, and thus improve the system performance. In this paper, a grid connected hybrid system of wind-solar with power quality improvement features is simulated with a PI controller, and then results are compared by replacing PI with fuzzy controller. © 2016 IEEE.