Electronic Theses and Dissertation

Meningkatnya penggunaan peralatan rumah tangga berbasis elektronika daya menyebabkan munculnya harmonisa yang dapat menurunkan kualitas daya listrik. Penelitian ini bertujuan mengukur dan menganalisis Total Harmonic Distortion (THD) pada pelanggan rumah tangga berdasarkan kapasitas daya tersambung. Pengukuran dilakukan menggunakan Power Quality Analyzer (PQA) pada enam rumah pelanggan PLN yang terdiri atas lima rumah golongan R1 (900–2.200 VA) dan satu rumah golongan R2 (5.500 VA), serta pada beberapa peralatan rumah tangga.
Hasil penelitian menunjukkan bahwa beban non-linear seperti lampu LED, laptop, komputer desktop, TV LED, router Wi-Fi, dan kulkas inverter menghasilkan nilai THDi yang sangat tinggi (lebih dari 100%) disertai faktor daya yang rendah. Sebaliknya, beban seperti AC non-inverter, kipas angin, dan rice cooker memiliki THDi yang lebih rendah dengan faktor daya yang lebih baik. Pada tingkat instalasi rumah tangga, seluruh nilai THDv masih memenuhi standar IEEE 519-2022, sedangkan THDi berkisar antara 5,5% hingga 27,6%. Hasil penelitian juga menunjukkan bahwa nilai THDi dipengaruhi oleh komposisi beban yang beroperasi, di mana dominasi beban induktif berarus fundamental besar menyebabkan terjadinya harmonic dilution sehingga persentase THDi pada PCC menjadi lebih rendah.

The increasing use of power electronics-based household appliances has led to the generation of harmonic distortion, which can degrade power quality. This study aims to measure and analyze Total Harmonic Distortion (THD) in residential customers based on their connected power capacity. Measurements were conducted using a Power Quality Analyzer (PQA) on six PLN residential customers, consisting of five R1 households (900–2,200 VA) and one R2 household (5,500 VA), as well as on several household electrical appliances. The results indicate that non-linear loads, such as LED lamps, laptops, desktop computers, LED televisions, Wi-Fi routers, and inverter refrigerators, produce very high current Total Harmonic Distortion (THDi) values (exceeding 100%) accompanied by low power factors. In contrast, appliances such as non-inverter air conditioners, electric fans, and rice cookers exhibit lower THDi values with better power factor performance. At the household installation level, all measured voltage Total Harmonic Distortion (THDv) values complied with the IEEE 519-2022 standard, while THDi values ranged from 5.5% to 27.6%. The results also show that THDi is influenced by the composition of the operating loads, where the dominance of inductive loads with large fundamental currents leads to harmonic dilution, resulting in lower THDi percentages at the Point of Common Coupling (PCC).