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Power quality enhancement using fractional order type-2 fuzzy SHAF optimized with hPSOFA algorithm.

Alok Kumar Mishra¹, Jeevan Jyoti Mahakud², Sushanta Kumar Kamilla³

¹Department of EEE, ITER, SOADU, Bhubaneswar, Odisha, India. alokmishra@soa.ac.in.

Scientific Reports

|December 13, 2025

Summary

This study introduces a novel Shunt Hybrid Active Filter (SHAF) for effective Reactive Power & Harmonic compensation (RPHC). The proposed controller significantly outperforms traditional methods, validated experimentally for enhanced power quality.

Keywords:

PFS RPHC SHAF T2FFOPIDC THD hPSOFA

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Area of Science:

Power Engineering
Electrical Engineering
Control Systems

Background:

Traditional passive filters are impractical for multi-harmonic mitigation.
Active power filters offer better performance but are costly.
Need for advanced solutions for Reactive Power & Harmonic compensation (RPHC).

Purpose of the Study:

Introduce a Shunt Hybrid Active Filter (SHAF) for RPHC.
Develop an optimized Type-2 Fuzzy Fractional Order PID Controller (T2FFOPIDC) for enhanced performance.
Compare the proposed SHAF with a Type-1 Fuzzy system.

Main Methods:

Utilized Kalman Filter (KF) for reference current estimation.
Employed a hybrid Particle Swarm Optimization (PSO) Firefly Algorithm (hPSOFA) for controller parameter tuning.
Implemented a novel compensation strategy requiring source-side current.

Main Results:

The hPSOFA-T2FFOPIDC-based SHAF demonstrated superior RPHC compared to the hPSOFA-T1FFOPIDC-based SHAF.
Validated performance across balanced and unbalanced nonlinear loads.
Experimental validation using dSPACE confirmed effectiveness.

Conclusions:

The proposed hPSOFA-T2FFOPIDC-SHAF offers superior RPHC performance.
The novel controller design and optimization strategy are effective.
The system shows promise for improving power quality in electrical systems.