Abstract
The reactive power compensation is essential during hybrid grid connected system, because the overall power factor of the power systems is reduced due to DC energy fed to the grid using electronic energy inverters. Increased load on the grid due to poor power factor triggers losses in the grid. The main objective of the work related to control the Reactive Power flow in grid connected Hybrid Renewable Energy System (PV-wind-battery). The objectives of the work were achieved by satisfying the load demand, injecting the reactive power from hybrid sources to the grid. First, the proposed technique with fuzzy based boost converter is implemented. It reduced power conversion stages, decreases the losses compared to existing Hybrid Grid-connected systems. The most significant result of the work is the conclusion that the fuzzy based boost converter should increase the Maximum power from solar PV Panel, The speed control of wind energy system is control by speed controller-fuzzy rule, and it created with low speed to high speed. The significance of the obtained results is that the used methodology allowed maximum energy utilized by hybrid renewable energy system to grid. The reactive power is maintained at zero level in order to ensure the unity power factor operation. But rather significantly enhances the small voltage fluctuation in the grid. In addition, to reduces the current total harmonic distortion to 1.9 %, which is good lower than the requirement for network operation. The proposed method is verified using MATLAB/Simulink. The simulation results were supported experimentally.
Highlights
The fundamental reason for shifting to renewable energy source (RES) is the hampering of industrial growth and economic status of the nation due to energy crisis
The main objective of this work is to design and develop a Hybrid Renewable energy model based on solar photovoltaic (PV) systems integrated with Wind Energy Conversion Systems (WECS) to generated and provide a stable and maximum power during different electrical behavior like voltage sags, dips, harmonic etc
RESULTS & DISCUSSIONS The grid tied hybrid energy generation system (HRES) system with PV, WECS and energy storage device is investigated in this work
Summary
The fundamental reason for shifting to renewable energy source (RES) is the hampering of industrial growth and economic status of the nation due to energy crisis. Solar and wind energy are the common renewable energy sources that are readily utilized for power generation. Anyhow, relying on a particular type of RES sometime fails to satisfy the grid power requirement. This is because, the RES are not always available to satisfy the energy demand because of the stochastic and inconsistent nature of solar insolation and wind speed. The HRES is utilized in this work, which integrates different types of distributed energy resources (DER) to enhance the power production. The HRES satisfies the energy demand of the load with high reliability and low cost[3]
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