scholarly journals FUZZY LOGIC CONTROLLER BASED DYNAMIC STABILITY ENHANCEMENT OF WPGS, PV AND SUPER CAPACITOR INTER-CONNECTED SYSTEM

2017 ◽  
Vol 4 (09) ◽  
Keyword(s):  
Fuzzy Logic ◽  
Dynamic Stability ◽  
Fuzzy Logic Controller ◽  
Super Capacitor ◽  
Stability Enhancement

Stabilizing a DC Motor Speed of Photovoltaic Pumping System Using a Super Capacitor and Fuzzy Logic Controller

2019 ◽  
Vol 20 (11) ◽  
pp. 669-676
Author(s):  
M. Ali Ben Fathallah ◽  
A. Ben Othman ◽  
M. Besbes
Keyword(s):  
Fuzzy Logic ◽  
Energy Production ◽  
Fuzzy Logic Controller ◽  
Electrical Energy ◽  
Dc Motor ◽  
Motor Speed ◽  
Super Capacitor ◽  
Pumping System ◽  
The One ◽  
Different Levels

In this paper, two issues are discussed in a PV pumping system. Firstly, an evaluation of super capacitor is studied to reassure the storage of electrical energy and solve the intermittence problem of photovoltaic energy production in dark periods. Secondly, a fuzzy logic controller (FLC) is proposed to stabilize, on the one hand, the DC motor speed around a preferred level by the control of duty cycle of DC buck boost converter. On the other hand, FLC serves to control the charge and discharge of super capacitor according to the sunlight levels and its state of charge. In this framework, a complete photovoltaic pumping system model is simulated in MATLAB Simulink to discuss the run results at different levels of sunshine.

scholarly journals Microgrid Stability Enhancement by using Coordination of SFCL, SMES and Distributed Generation Units with Fuzzy Logic Controller

2019 ◽  
Vol 8 (2) ◽  
pp. 5548-5554
Keyword(s):  
Fuzzy Logic ◽  
Distributed Generation ◽  
Fuzzy Logic Controller ◽  
Magnetic Energy ◽  
Short Circuit ◽  
Superconducting Magnetic Energy Storage ◽  
Fault Ride Through ◽  
The Stability ◽  
Stability Enhancement ◽  
Magnetic Energy Storage

By the coordination of the superconducting fault current limiter (SFCL), superconducting magnetic energy storage (SMES) and distributed generation (DG) units, the stability of the microgrid is increased under short circuit fault conditions. And by this coordination control, the microgrid is smoothly separated from the main network under severe fault and attains a fault ride through (FRT) operation under minor fault. In this paper, to overcome the drawbacks of the PI controller a fuzzy logic controller (FLC) is used in the controller of the SFCL. This proposed method is carried out in a MATLAB/Simulink. The results show the achievement of a better control strategy.

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