• Arsh Khan
• Harsh Wardhan Kaushik
• Pooja Sahu

This research paper presents a comparative analysis of Shunt Active Power Filters (SAPF) and Hybrid Active Power Filters (HAPF) in mitigating harmonic distortion in power systems caused by non-linear loads such as rectifiers, and unbalanced loads. Harmonics not only reduces system efficiency but can also lead to equipment damage. The SAPF generates compensating currents to reduce Total Harmonic Distortion (THD). For a system with rectifiers and an unbalanced load, the SAPF reduced THD from 30.26% to 5.72%, showcasing its effectiveness. On the other hand, the HAPF combines active and passive filtering techniques to reduce harmonics by 5.72% to 0.60% suppression across a broader frequency range. This paper analyzes the design, control strategies, and performance of both filters, focusing on subsystems like the PI Controller, PQ and I Compensation subsystem, Hysteresis Controller, and PQ Measurement subsystem. The study highlights the relative advantages, limitations, and applications of SAPFs and HAPFs, providing a comprehensive understanding of their roles in improving power system performance and stability

APF, SAPF, HAPF, THD, PI, PQ

"A Comparative Analysis of Shunt Active Power Filter and Hybrid Active Power Filter", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.11, Issue 12, page no.g393-g408, December-2024, Available :http://www.jetir.org/papers/JETIR2412644.pdf

"A Comparative Analysis of Shunt Active Power Filter and Hybrid Active Power Filter", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.11, Issue 12, page no. ppg393-g408, December-2024, Available at : http://www.jetir.org/papers/JETIR2412644.pdf