Harmonic Mitigation and Energy Savings in 13.2 kV Distribution Feeders via P–Q-Based Shunt Active Filters and Luminaire Retrofit

Brandon Condemaita and Milton Ruiz ()
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Brandon Condemaita: Smart Grid Research Group—GIREI, Universidad Politécnica Salesiana, Quito EC170702, Ecuador
Milton Ruiz: Smart Grid Research Group—GIREI, Universidad Politécnica Salesiana, Quito EC170702, Ecuador

Energies, 2025, vol. 18, issue 21, 1-16

Abstract: This article designs and validates a P-Q-based shunt active power filter (SAPF) to mitigate voltage harmonics in EERSA’s 13.2 kV feeder 1500080T03. A CYMDIST feeder model, calibrated with field measurements, reveals worst-case voltage THD up to 9.48% due to legacy high-pressure sodium (HPS) street lighting. Co-simulation with a MATLAB/Simulink R2024b, controller guides the sizing of a 150 kVA SAPF at Substation 8. Simulations reduce peak THD at a representative node from 9.48% to 1.51%; replacing HPS with LEDs further improves efficiency while lowering distortion. The retrofit complies with IEEE Std 519-2022, enhances supply reliability, and yields an internal rate of return above 17%, indicating a technically and financially attractive solution for Latin American distribution networks.

Keywords: power quality; total harmonic distortion; P–Q theory; shunt active power filter; LED street lighting (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2025
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