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Adaptive Neuro-Fuzzy Inference System based DVR Controller Design

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Author(s): Samira DIB | Brahim FERDI | Chellali BENACHAIBA

Journal: Leonardo Electronic Journal of Practices and Technologies
ISSN 1583-1078

Volume: 10;
Issue: 18;
Start page: 49;
Date: 2011;
Original page

Keywords: Dynamic Voltage Restorer (DVR) | Sugeno Fuzzy Controller | Adaptive Neuro-Fuzzy Inference System (ANFIS) | Voltage Sag | Voltage Swell | Voltage Unbalance

ABSTRACT
PI controller is very common in the control of DVRs. However, one disadvantage of this conventional controller is its inability to still working well under a wider range of operating conditions. So, as a solution fuzzy controller is proposed in literature. But, the main problem with the conventional fuzzy controllers is that the parameters associated with the membership functions and the rules depend broadly on the intuition of the experts. To overcome this problem, Adaptive Neuro-Fuzzy Inference System (ANFIS) based controller design is proposed. The resulted controller is composed of Sugeno fuzzy controller with two inputs and one output. According to the error and error rate of the control system and the output data, ANFIS generates the appropriate fuzzy controller. The simulation results have proved that the proposed design method gives reliable powerful fuzzy controller with a minimum number of membership functions.
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