Reduction of Harmonics in Grid Interfacing Hybrid Renewable Energy Sources at the Level of Distribution

  IJETT-book-cover  International Journal of Engineering Trends and Technology (IJETT)          
  
© 2019 by IJETT Journal
Volume-67 Issue-10
Year of Publication : 2019
Authors : K.Durga priyanka, T.Sridevi, J.Ramu
  10.14445/22315381/IJETT-V67I10P201

MLA 

MLA Style: K.Durga priyanka, T.Sridevi, J.Ramu  "Reduction of Harmonics in Grid Interfacing Hybrid Renewable Energy Sources at the Level of Distribution" International Journal of Engineering Trends and Technology 67.10 (2019):1-7.

APA Style: K.Durga priyanka, T.Sridevi, J.Ramu. Reduction of Harmonics in Grid Interfacing Hybrid Renewable Energy Sources at the Level of Distribution International Journal of Engineering Trends and Technology, 67(10),1-7.

Abstract
In power systems Renewable energy resources plays an important role. These renewable resources reduce the production of greenhouse gases and also it causes the environmental pollution. Renewable energy sources (RES) includes solar and wind, hydro energies. The nonlinear loads causes power quality problems like harmonics in source current, sag in voltages and swell in voltages etc. The main and important objective of the proposed project is to reduce source current harmonics and improve Total Harmonic Distortion (THD) in grid interfacing hybrid renewable energy conversion system (HRECS). The Voltage Source converter (VSC) will be perform multiple functions. The VSC (voltage source converter) can be operated as: 1) It injects power that is generated from RES (Renewable Energy Sources) to the grid, and 2) shunt APF (Active Power Filter) to compensate source current harmonics. All of the two main functions may be completed either individually or instantaneously. And also in this project fuzzy logic controller (FLC) will be implemented to decrease the harmonics of Hybrid Renewable Energy conversion system integrated on the power grid. When the hybrid renewable energy system (HRES) is combined to the grid, due to DC to AC conversion in solar and AC to DC conversion in wind and also due to variation in solar power intensity, the also differences in wind speed, the electrical utility experiences undesired harmonics, so that it will affect the quality of power. To improve THD (Total Harmonic Distortion) in grid interfacing hybrid energy system a fuzzy logic controller (FLC) will be employed to control VSC (Voltage Source Converter). The complete simulation and modelling will be carried out in MATLAB/SIMULINK to validate the proposed analysis.

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Keywords
Shunt active power filter(SAPF), distribution system, renewable energy, grid interconnection, fuzzy logic controller (FLC).