Yul Martin
Universitas Lampung

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Electromagnetic interference shielding in unmanned aerial vehicle against lightning strike Diah Permata; Menachem C. Gurning; Yul Martin; Henry B. H. Sitorus; Mona Arif Muda; Herman H. Sinaga
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 17, No 2: April 2019
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v17i2.9029

Abstract

Electromagnetic interference (EMI) due to lightning strike in Unmanned Aerial Vehicle (UAV) became a critical issue, since it could cause a severe damaged to electronic equipment which was installed in UAV. This paper proposed a method to reduce EMI by creating shield over the body of UAV with aluminum foil with thickness 0.15mm. A standard lightning impulse-voltage generated by impulse generator was delivered to the high voltage (HV) electrode at a particular distance from UAV. Indirect effect of lightning strike was investigated by measuring induced voltage inside the compartment of UAV fuselage during flashover between the HV electrode and UAV. Flashover between the HV electrode and UAV simulated the lightning strike. The result showed that the highest voltage only 1V at UAV compartment when 150kV impulse voltage supplied to the electrode with striking area on the wing. The measured voltage was far below 100V as the insulation level of low voltage equipment inside UAV. Although the direct effect of lightning has created a burning hole on the surface aluminum foil with thickness 0.15mm, the effect was overcome by increasing the thickness to 0.3mm. The application of aluminum foil over the surface of UAV repelled the electromagnetic interference which acted as a Faraday cage. The shielding method was successfully reduced the effect of EMI.
DASHBOARD PENGAWASAN BESARAN LISTRIK WAKTU NYATA Dikpride Despa; Najib Amaro; Meizano Ardhi Muhammad; Gigih Forda Nama; Yul Martin
BAROMETER Vol 4 No 1 (2019): Barometer
Publisher : Fakultas Teknik, Universitas Singaperbangsa Karawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (370.447 KB) | DOI: 10.35261/barometer.v4i1.1431

Abstract

Masyarakat modern cenderung memakai listrik secara kontinyu. Dan, tergantung dari pemakaian, besaran listrik yang dipakai berubah seiring waktu. Nilai besaran listrik harus berada dalam batasan tertentu agar sistem yang bekerja menggunakan listrik dapat berfungsi dengan baik. Selain itu, teknologi hijau mendorong pemakaian listrik optimal sesuai dengan keperluannya. Tetapi, pengukuran konvensional untuk nilai besaran listrik terpakai tidak efisien, pengecekan dilakukan berkala dan harus ditera langsung pada perangkat pengukur seperti meteran listrik. Dan, pada sistem tenaga listrik yang lebih kompleks seperti sistem tiga fasa dapat terjadi fluktuasi perubahan beban, ketidakseimbangan beban pada tiap fasa, mau pun keadaan abnormal yang terjadi dalam rentang yang singkat. Sehingga, kebutuhan informasi pemakaian besaran listrik waktu nyata diperlukan. Penelitian untuk Dashboard Pengawasan Besaran Listrik Waktu Nyata dilakukan dengan tujuan melakukan pengawasan terhadap besaran listrik terpakai. IoT (Internet of Things) dimanfaatkan untuk mendapatkan data mengenai besaran listrik seperti Tegangan, Arus, Daya, Faktor Daya, dan Energi. IoT kemudian mengirimkan data besaran listrik ke server basis data yang kemudian diakses oleh Dashboard untuk disajikan dalam grafik yang mudah dipahami.