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@article{201512,
        author = {Dr. E. Jessy Mol and G. Preeta Shirley and Bhavish T J},
        title = {Fuzzy Type-II Controller Based UPQC For Power Quality Enhancement},
        journal = {International Journal of Innovative Research in Technology},
        year = {2026},
        volume = {12},
        number = {no},
        pages = {150-153},
        issn = {2349-6002},
        url = {https://ijirt.org/article?manuscript=201512},
        abstract = {Power quality (PQ) has become a critical issue in modern electrical power systems due to the increasing use of nonlinear loads such as power electronic converters, adjustable speed drives, and renewable energy systems. These loads introduce disturbances such as voltage sags, swells, harmonics, and unbalanced conditions, which degrade system performance and reliability. This paper proposes a Fuzzy Type-II Controller-based Unified Power Quality Conditioner (UPQC) for effective mitigation of power quality issues. The UPQC integrates series and shunt active power filters controlled by an Interval Type-II Fuzzy Logic Controller (IT2FLC), which enhances system robustness and adaptability under uncertain conditions.
Simulation results carried out in MATLAB/Simulink demonstrate significant improvement in system performance. The Total Harmonic Distortion (THD) is reduced from 21.6% to below 3%, the power factor improves to 0.99, and voltage regulation exceeds 97%. The proposed system shows superior performance compared to conventional PI and Type-I fuzzy controllers.},
        keywords = {UPQC, Fuzzy Type-II Controller, Power Quality, Harmonics, THD, MATLAB/Simulink.},
        month = {May},
        }