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Single-tuned passive filter (STPF) for mitigating harmonics in a 3-phase power system
Meshack Magaji Ishaya1, Oluwatayomi Rereloluwa Adegboye2, Ephraim Bonah Agyekum3
1Department of Electrical and Electronics Engineering, Cyprus International University, Mersin 10, North Cyprus, Turkey.
Scientific Reports
|November 25, 2023
Summary
This study designed a single tuned passive filter (STPF) to reduce harmonics in three-phase power systems. The filter effectively lowered total harmonic distortion from 14.93% to 4.87%, meeting the IEEE 519 standard.
Area of Science:
- Electrical Engineering
- Power Systems Analysis
Background:
- Harmonics in power systems, caused by non-linear loads, lead to inefficiencies and equipment damage.
- Achieving the IEEE 519 power quality standard requires effective harmonic mitigation strategies.
Purpose of the Study:
- To design and evaluate a single tuned passive filter (STPF) for minimizing specific harmonic orders (5th, 7th, 11th, 13th, 17th, 19th) in a three-phase power system.
- To demonstrate the STPF's effectiveness in reducing total harmonic distortion (THD) to comply with the IEEE 519 standard.
Main Methods:
- Design of a single tuned passive filter (STPF) for a three-phase power system.
- Simulation of the power system with and without the STPF using MATLAB/Simulink.
- Analysis of harmonic levels and total harmonic distortion (THD) at the point of common coupling.
Main Results:
- The STPF successfully reduced the total harmonic distortion (THD) from 14.93% to 4.87%.
- The post-filter THD level of 4.87% is compliant with the IEEE 519-2022 power quality standard.
- Simulations confirmed the STPF's efficacy in mitigating targeted harmonic frequencies.
Conclusions:
- The single tuned passive filter (STPF) is an effective solution for reducing harmonics in three-phase power systems.
- Implementing the STPF ensures compliance with stringent power quality standards like IEEE 519.
- The study validates the STPF design through simulation, showing significant improvements in power system quality.
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