Abstract
The main aim of this paper is to introduce a framework for the design and modelling of a photovoltaic (PV)-wind hybrid system and its control strategies. The purpose of these control techniques is to regulate continuous changes in the operational requirements of the hybrid system;currently, in power system networks, the distribution of energy plays a major role in maintaining power reliability in distribution systems. In this study, the proposed hybrid system was incorporated with a combined PV and wind energy system. Maximum power point tracking (MPPT) methods have been proposed to achieve maximum efficiency from the designed system. In addition, this study focused on improving the stability of the hybrid system. To improve the power quality and transient stability of the proposed system, we introduce a novel control strategy called the distributed power flow controller (DPFC) implementation with an optimization technique called the lion optimization algorithm(LOA)technique. This LOA control technique was developed for the first time in the application of a DPFC controller in a grid-connected system. The control technique was developed using signals from the system parameters, that is, voltage and current. To tune these parameters, this study used fuzzy logic and lion optimization techniques. The proposed system with controllers was tested in MATLAB/Simulink and the results were compared.
Highlights
I N the present scenario, the demand for electrical energy has increased rapidly
CASE 1: IMPROVEMENT OF POWER QUALITY IN A HYBRID SYSTEM USING FUZZY AND LOA-BASED distributed power flow controller (DPFC) CONTROLLERS In this case, the proposed system is tested with a DPFC-fuzzy controller, and the experimental results are shown in the Fig. 10
An Maximum power point tracking (MPPT) controller was implemented for both the PV and wind energy systems to improve the performance of the hybrid system
Summary
I N the present scenario, the demand for electrical energy has increased rapidly. The utilization of conventional power generation systems, such as gas, coal, and nuclear power plants, causes pollution and greenhouse effects [1]. To overcome these environmental problems and meet the electrical demands, non-conventional sources play a key role in the present energy generation systems [2]. There are more renewable systems available in the market; compared to all wind and solar energy systems, they play a key role because of their simple structure, available sources in the environment, and highly efficient conditions [3]. Photovoltaic systems are one of the most convenient renewable energy systems
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