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All Journal CIRCUIT: Jurnal Ilmiah Pendidikan Teknik Elektro Jurnal Ilmiah Teknik Elektro
Rheo Loridho Pratama
Universitas Indonesia
Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Other

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Karakteristik Disturbansi di Rentang Frekuensi 9-150 kHz Pada Sistem UPS Berbeban Induktif Rheo Loridho Pratama; Budi Sudiarto
CIRCUIT: Jurnal Ilmiah Pendidikan Teknik Elektro Vol 4, No 1 (2020)
Publisher : PTE FTK UIN Ar-Raniry

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (233.283 KB) | DOI: 10.22373/crc.v4i1.6276

Abstract

In every UPS device there are power electronic components including inverters, therefore using an inverter will cause voltage disturbances at high frequency because the switching frequency of the inverter is at high frequency. Data recorded by the oscilloscope along with the Picolog Recorder software and processed by  Matlab software to make it more efficient. Research conducted when the UPS uses dual conversion mode and with inductive load variations 0.35 H, 0.7 H, 1.4 H and 2.8 H. The test results show that voltage disturbances occur in three dominant frequency ranges at each level of load variations are 9-19 kHz, 20-30 kHz and 31-41 kHz. In the condition of 10% loading rate with a load of 0.35 H the peak voltage disturbances occur at 81.17 mV in frequency of 9.2 kHz and at the condition of the 75% loading rate with 2.8 H load the peak voltage disturbances that occur at 92.20 mV in frequency of 9.6 kHz. The disturbances voltage increases with the increasing of  inductive loads that connected to UPS.
Karakteristik Disturbansi di Rentang Frekuensi 9 kHz – 150 kHz pada Sistem UPS Rheo Loridho Pratama; Budi Sudiarto
Jetri : Jurnal Ilmiah Teknik Elektro Jetri, Volume 17, Nomor 2, Februari 2020
Publisher : Website

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (695.613 KB) | DOI: 10.25105/jetri.v17i2.6080

Abstract

The Uninterruptible Power Supply (UPS) contains power electronic components including inverter, the application of inverter will cause voltage disturbances at high frequency because switching frequency from inverter are at high frequency. The data recorded by oscilloscope along with Picolog Recorder software and processed by Matlab software to make it more efficient. Research conducted when the UPS in battery mode with resistive load level variation of electric water heater. From the test results it was found that voltage disturbances occur in three dominant frequency ranges at each resistive load level variation, that is 19-24 kHz, 39-44 kHz and 59-64 kHz. At 0% load condition when the battery is fully charged, the peak voltage disturbances occur at 207,43 mV at frequency of 20 kHz and at 100% load condition when the battery condition has linearly reduced the peak voltage disturbances occur at 46,42 mV at frequency 19,8 kHz. Pada setiap alat Uninterruptible Power Supply (UPS) terdapat komponen elektronika daya termasuk inverter, oleh sebab itu dengan penggunaan inverter akan menimbulkan tegangan disturbansi pada frekuensi tinggi karena frekuensi pensaklaran dari inverter berada pada frekuensi tinggi. Untuk perekaman data menggunakan alat osiloskop beserta software Picolog Recorder dan untuk pengolahan datanya menggunakan software Matlab agar lebih efisien. Penelitian dilakukan saat perangkat UPS menggunakan mode baterai dan dengan tingkat variasi pembebanan beban resistif berupa pemanas air elektrik. Dari hasil pengujian didapatkan bahwa disturbansi tegangan terjadi pada tiga rentang frekuensi dominan pada setiap tingkat variasi pembebanan beban resistif yaitu frekuensi 19-24 kHz, 39-44 kHz dan 59-64 kHz. Pada kondisi pembebanan 0% saat kondisi baterai terisi penuh disturbansi tegangan puncak yang terjadi sebesar 207,43 mV pada frekuensi 20 kHz dan pada kondisi pembebanan 100% saat kondisi baterai sudah berkurang secara linear disturbansi tegangan puncak yang terjadi sebesar 46,42 mV pada frekuensi 19,8 kHz.
Co-Authors Budi Sudiarto Jamhari Jamhari