| Title |
Comparative Analysis of Power Components and True Power Factor under Increasing Nonlinear Loads |
| Authors |
이동주(Dong-Ju Lee) ; 김종겸(Jong-Gyeum Kim) |
| DOI |
https://doi.org/10.5370/KIEE.2026.75.8.1951 |
| Keywords |
Non-linear Load; Harmonics; Displacement Power Factor; Total Harmonic Distortion; True Power Factor |
| Abstract |
In modern power systems, the proliferation of non-linear loads has led to significant harmonic distortion. This study aims to re-evaluate power quality assessment methods by comparing Displacement Power Factor (DPF) with True Power Factor (TPF) in the presence of these non-linear loads. The research utilizes a "Power Tetrahedron" model, which extends the traditional 2-dimensional power triangle into a 3-dimensional structure by incorporating Distortion Reactive Power(D). A simulation was conducted using an electromagnetic transient analysis program, modeling a system that combines linear loads and non-linear loads. Additionally, the effectiveness of a 5th harmonic passive filter was tested to analyze improvements in power quality. The study demonstrates that DPF-centered monitoring fails to account for distortion losses, potentially leading to revenue loss for power providers and efficiency degradation for consumers. It is imperative to establish new power factor compensation standards and billing systems that reflect TPF. Future research should explore the economic and technical advantages of active filters capable of mitigating multiple harmonic orders simultaneously. |