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Related Experiment Video

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Design and Application of a Fault Detection Method Based on Adaptive Filters and Rotational Speed Estimation for an Electro-Hydrostatic Actuator

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Unity power factor converter based on a fuzzy controller and predictive input current.

Amar Bouafassa¹, Lazhar Rahmani¹, Abdelhalim Kessal²

¹Automatic Laboratory of Setif, University of Setif 1, Algeria.

ISA Transactions

|September 25, 2014

Summary

This study introduces a novel control method for single-phase power factor correctors (PFCs) using fuzzy logic and predictive current control. The approach ensures a unity power factor despite voltage or load variations, offering high dynamic performance.

Keywords:

Fuzzy PFC Predictive THD Unity power factor

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Area of Science:

Electrical Engineering
Control Systems
Power Electronics

Background:

Power factor correction (PFC) is crucial for efficient power utilization.
Existing PFC methods face challenges with DC link voltage and load fluctuations.
Intelligent control strategies offer potential for improved PFC performance.

Purpose of the Study:

To propose and analyze an intelligent control strategy for single-phase power factor correctors (PFCs).
To achieve unity power factor operation under varying DC link voltage and load conditions.
To develop a cost-effective and flexible PFC control solution.

Main Methods:

A hybrid control approach combining a fuzzy logic controller (FLC) and predictive current control.
Fuzzy logic controller designed with minimal rules for cost-efficiency.
Simulation analysis using MATLAB/Simulink.
Real-time validation using a dSPACE 1104 test bench.

Main Results:

The proposed control method successfully achieves a unity power factor.
High dynamic performance demonstrated under various parameter changes and load fluctuations.
The method exhibits ease of implementation and flexibility in operation.
Significant improvements in PFC performance were observed.

Conclusions:

The integrated fuzzy logic and predictive current control offers an effective solution for single-phase PFC.
The approach provides robust performance and adaptability to system variations.
The proposed method is suitable for real-time implementation with practical benefits.