scholarly journals Enhancement of Power Quality in a Grid Integrated WECS with Shunt Voltage Controller

2021 ◽  
Vol 309 ◽  
pp. 01166
Author(s):  
K. Veeresham ◽  
Lade Abhinandh ◽  
B. Neelakanteshwarrao
Keyword(s):  
Wind Energy ◽  
Power Quality ◽  
Energy System ◽  
Wind Energy Conversion ◽  
Voltage Controller ◽  
Linear Load ◽  
Wind Energy System ◽  
Non Linear ◽  
Non Linear Load ◽  
Fuzzy Logic Technique

This paper deals with study of wind energy conversion system when it is interconnected with the grid. Main objective of the paper is to improve the quality of the power when wind energy system is linked with the non-linear loads. In this work DSTATCOM (FACTS Device) is used as a shunt active controller which used to reduce harmonics, when grid is interconnected with the non-linear load. In this work a new methodology is proposed i.e., Fuzzy Logic technique is integrated in the control circuit of DSTATCOM that helps to compare the reference voltage and output voltage of grid in order to minimize the error and improve power quality

scholarly journals Load Current Observer and Adaptive Voltage Controller for Standalone Wind Energy System with Linear and Non-linear Loads

2019 ◽  
Vol 9 (1) ◽  
pp. 5491-5499 ◽  
Keyword(s):  
Wind Energy ◽  
Pulse Width Modulation ◽  
Energy System ◽  
Load Current ◽  
Wind Energy Conversion ◽  
Voltage Controller ◽  
Three Phase ◽  
Wind Energy System ◽  
Non Linear ◽  
Unbalanced Loads

The Wind Energy Conversion System (WECS) is one of the most important renewable energy systems in the existing power network, which can be operated in either grid connected or standalone mode. In the standalone WECS, voltage and frequency variations are more due to the wind speed variations, load changes and switching surges. In this paper, space vector pulse width modulation based adaptive voltage controller with load current observer is used to control the voltage and frequency, for the standalone or isolated WECS. The isolated system is simulated using MATLAB/Simulink and the results are analysed when three-phase non-linear and linear (Resistive and Inductive) balanced and unbalanced loads are connected.

scholarly journals Design and Simulation of a Unified Power Quality Conditioner by Fuzzy Logic for Egyptian Power Grid Connected to Zafarana Egypt Wind System

2019 ◽  
Vol 4 (9) ◽  
pp. 1-8
Author(s):  
Montaser Abd El Sattar ◽  
Adel A. Elbaset ◽  
Ali H. KasemAlaboudy ◽  
Wessam Arafa Hafez
Keyword(s):  
Wind Energy ◽  
Power Quality ◽  
Reactive Power ◽  
Power Grid ◽  
Energy System ◽  
Wind System ◽  
Unified Power Quality Conditioner ◽  
Wind Energy System ◽  
Power Quality Conditioner

Wind energy system is lately receiving a lot of attention, because they are cost inexpensive, environmental safe and clean renewable energy source, as compared with nuclear and fossil fuel power generation. The operational characteristics of wind electric turbines has considerable dissatisfaction and stress on the quality of electric power system. Harmonics, variations of voltage and reactive power are most of power quality issues for grid connected with wind turbine. This paper introduces a design and simulation of unified power quality conditioner using a fuzzy controller to improve the power quality for Egyptian power grid connected to Zafarana Egypt wind system. The proposed performance of the unified power quality conditioner system is verified by simulating the model using MATLAB/SIMULINK environment. The simulation results showed that the proposed unified power quality conditioner provide efficient cancellation of both load current  harmonics  and supply voltage sag in addition to compensation of reactive power, and thus making the electrical grid connected wind energy system more efficient by improving the quality of power.

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