A Fuzzy-Based Enhanced Adaptive Control Scheme for Dynamic Voltage Restorer Using IHSF-LMS Algorithm
A Fuzzy-Based Enhanced Adaptive Control Scheme for Dynamic Voltage Restorer Using IHSF-LMS Algorithm
Authors:
Maganti Sri Naga Hasi1*, Yerramilli Butchi Raju2, Tummala Kranti Kiran3
1 M. Tech Student , Department of Electrical and Electronics Engineering, Sir C R Reddy College of Engineering,
2 Professor, Department of Electrical and Electronics Engineering, Sir C R Reddy College of Engineering,
3 Assistant Professor, Department of Electrical and Electronics Engineering, Sir C R Reddy College of Engineering,
*Corresponding author: email- msnh277@gmail.com.
ABSTRACT:
This paper presents a simple and effective control approach for a Dynamic Voltage Restorer (DVR) to improve power quality in distribution systems. The proposed method combines the inverse hyperbolic sine function-based least mean square (IHSF-LMS) algorithm with a fuzzy logic controller for better voltage compensation. The IHSF-LMS algorithm helps in quickly extracting the fundamental voltage component with minimal error, while fuzzy logic handles nonlinear conditions and sudden disturbances more efficiently. Simulation results using MATLAB/Simulink show that the method successfully reduces voltage sag, swell, and other disturbances, while improving response speed and reducing overshoot. It also controls harmonic distortion within standard IEEE limits, ensuring a stable and reliable supply to sensitive loads.
Keywords: Dynamic Voltage Restorer (DVR), IHSF-LMS, Fuzzy Logic Control, Voltage Sag, Power Quality, MATLAB/Simulink