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JURNAL NASIONAL TEKNIK ELEKTRO

JNTE
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Published by Universitas Andalas

ISSN : 23022949 EISSN : 24077267 DOI : -

Core Subject : Engineering,

Electrical & Electronics Engineering

Jurnal Nasional Teknik Elektro (JNTE) adalah jurnal ilmiah peer-reviewed yang diterbitkan oleh Jurusan Teknik Elektro Universitas Andalas dengan versi cetak (p-ISSN:2302-2949) dan versi elektronik (e-ISSN:2407-7267). JNTE terbit dua kali dalam setahun untuk naskah hasil/bagian penelitian yang berkaitan dengan elektrik, elektronik, telekomunikasi dan informatika.

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Articles 610 Documents

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Peningkatan Faktor Penuaan Arester Tanpa Sela Isolasi Polymer Akibat Kontaminan Kalsium Karbonat Novizon Novizon; Nofriadi Nofriadi; Dano Yustasia
JURNAL NASIONAL TEKNIK ELEKTRO Vol 9, No 2: July 2020
Publisher : Jurusan Teknik Elektro Universitas Andalas

Gapless arester leakage current can be used as an indicator to determine the aging level of the arester. Leakage current is influenced by contaminants present in the arester insulation. This paper analyzes the effect of contamination on arester leakage currents as an indicator of arester aging. Contaminants used are calcium carbonate plus kaolin dissolved into water, to determine the level of calcium carbonate contaminants, the ESDD (Equivalent Salt Deposit Density) method is used. Contaminated aresters are measured as leakage currents flowing to the block elements and to the arester insulation. Based on experiments that have been carried out, the increase in leakage current of the arester on the block element that increases the leakage current to the level of light, medium and heavy contamination rises by an average of 17.5% for the voltage of all test voltages. While at low and moderate contamination the leakage current that occurs in the polymer arester insulation does not significantly change, the leakage current generated is linear with the level of contaminants in the arester body. It can clearly be concluded that the effect of contamination is very significant in changes in leakage currents.Keywords : Gapless arester, Leakage current, Kontamination, Aging, AbstrakArus bocor arester tanpa sela dapat digunakan sebagai indikator untuk menentukan tingkat penuaan arester. Arus bocor dipengaruhi oleh kontaminan yang ada pada isolasi arester. Paper ini menganalisa pengaruh kontaminasi terhadap arus bocor arester sebagi indikator penuaan arester. Kontaminan yang digunakan adalah kalsium karbonat di tambah kaolin yang di larutkan kedalam air, untuk menentukan tingkat kontaminan kalsium karbonat maka digunakan metode ESDD (Equivalent Salt Deposit Density). Arester yang sudah berkontaminasi diukur arus bocor yang mengalir pada elemen blok dan pada isolasi arester. Berdasarkan percobaan yang telah dilakukan, kenaikan arus bocor arester pada elemen blok bahwa kenaikan arus bocor untuk tingkat kontaminasi ringan,sedang dan berat naik rata-rata 17.5 % untuk semua tegangan uji. Sementara pada kontaminasi rendah dan sedang arus bocor yang terjadi pada isolasi polimer arester tidak. singnifikan perubahannya,Arus bocor yang dihasilkan linier dengan tingkat kontaminan pada badan arester. Secara jelas dapat disimpulkan bahwa pengaruh kontaminasi sangat signifikan dalam perubahan arus bocor.Kata Kunci : Arester tanpa sela, Arus bocor, Kontaminasi, Penuaan,

Design and Implementation of Series Resonant DC-DC Converter Firmansyah Nur Budiman; Arridha Amrad
JURNAL NASIONAL TEKNIK ELEKTRO Vol 9, No 1: March 2020
Publisher : Jurusan Teknik Elektro Universitas Andalas

The resonant DC-DC converter is known as advantageous over conventional DC-DC converter in terms of efficiency. This is primarily because the resonant converter operates at soft switching mode. In this paper, we report our work on the design and implementation of a series resonant DC-DC converter with full-bridge switching. The developed converter consisted of two main parts, namely the PWM signal-generating circuit as the driver for MOSFET and converter primary circuit. The first part was implemented by using Arduino UNO R3, whose output was amplified with IR2110 optocoupler. The latter was made up of full-bridge inverter, which employs MOSFET as the electronic switches, resonance circuit, and full-bridge uncontrolled rectifier. Performance of the developed converter was tested by supplying input voltage ranging from 20 to 30 V. It was shown that the converter functioned as a step-down “DC” transformer, i.e. voltage reducer. The maximum output voltage level obtained was half of the input, which was achieved at switching frequency of 40 kHz and efficiency of 50%. The converter was also tested to supply practical electrical load. In this case, a 12-V electric drill was put in place. The drill worked well, and a converter efficiency of 43% could be calculated during this operation.Keywords : DC-DC Converter, Series Resonance and Switching

Pengendalian Mobile Robot Non-Holonomic Berdasarkan Gestur Jari Menggunakan Template Matching Ali Rizal Chaidir; Dedy Wahyu Herdiyanto; Guido Dias Kalandro
JURNAL NASIONAL TEKNIK ELEKTRO Vol 9, No 1: March 2020
Publisher : Jurusan Teknik Elektro Universitas Andalas

Control of non-holonomic mobile robots based on gestures is a technique for controlling non-holonomic mobile robot movements using finger gestures. Mobile robots can move forward, backward, turn right, and turn left based on finger gestures. The task can be done based on the operator's command. One of the techniques used by operators to control robots is to use sensors installed in the operator's hands. In addition to requiring sensor components, the use of sensors requires additional hardware to acquire sensor readings. This research offers another solution for controlling non-holonomic mobile robots. The solution is to use a camera to recognize the robot operator's hand gestures. Each gesture is stored as a binary image, then each gesture captured by the camera is compared with the previously saved image using template matching, so that the movement of the non-holonomic wheeled robot moves based on the operator's finger gesture. The results of this study indicate the camera can recognize finger gestures to give commands to the robot. Finger gestures are used to give commands to the robot to move forward, backward, turn right and left, and stop, the percentage of success of the test is 95%.Keywords : Gesture, Mobile robot dan Template matchingAbstrakPengendalian mobile robot non-holonomic berdasarkan gestur adalah suatu teknik untuk mengatur gerakan mobile robot non-holonomic menggunakan gestur jari, setiap gestur mewakili gerakan robot. Mobile robot dapat bergerak maju, mundur, belok kanan, dan belok kiri berdasarkan gestur jari. Tugas tersebut dapat dilakukan berdasarkan perintah operator. Dengan memanfaatkan perintah operator, pergerakan robot tidak tergantung pada lingkungan yang tetap. Salah satu teknik yang digunakan operator untuk mengendalikan robot adalah menggunakan sensor yang terpasang di tangan operator. Selain membutuhkan komponen sensor, penggunaan sensor membutuhkan perangkat keras tambahan untuk mengakuisisi data hasil pembacaan sensor. Penelitian ini menawarkan solusi lain untuk mengendalikan mobile robot non-holonomic, yaitu menggunakan kamera untuk mengenali gestur tangan operator robot. Setiap gestur disimpan dalam bentuk citra biner, kemudian setiap citra gestur yang tertangkap kamera dibandingkan dengan citra yang tersimpan sebelumnya menggunakan template matching. Sehingga pergerakan robot beroda non-holonomic bergerak berdasarkan gestur jari operator. Hasil dari penelitian ini menunjukkan kamera mampu mengenali gestur jari untuk memberikan perintah kepada robot. Gestur jari digunakan untuk memberikan perintah kepada robot agar bergerak maju, mundur, belok kanan dan kiri, dan berhenti, persentase keberhasilan dari pengujian tersebut adalah sebesar 95%.Kata Kunci : Gestur, Mobile robot dan Template matching

Implementasi Metode Deteksi Tepi Laplacian dan Jarak Euclidean untuk Identifikasi Tanda Tangan Mas Aly Afandi; Sevia Indah Purnama; Risa Farid Crisianti
JURNAL NASIONAL TEKNIK ELEKTRO Vol 9, No 1: March 2020
Publisher : Jurusan Teknik Elektro Universitas Andalas

Signature is one of the biometrics that are widely used for important document authentication and verification. The existence of a signature as a form of validation and approval in important documents is mandatory. Along in current sophisticated technological developments, signing can be done using digital media such as cellphones or other media. The ability of the system that can be identify a person signature is important. This research aims to implement the Laplacian edge detection method and Euclidean distance to identify a person signature. The total image that used is 20 signatures from 5 different people while 15 signatures as data training image and 5 signatures as a data test image. The result of this research indicate that Laplacian edge detection method and Euclidean distance have an accuracy of 94% with 1 neighbor, with 2 neighbor has an accuracy of 60% and has an accuracy of 74% with 3 neighbor. Keywords : signature, Laplacian edge detection and Euclidean distanceAbstrakTanda tangan adalah salah satu biometrik yang banyak digunakan untuk autentikasi dan verifikasi dokumen penting. Keberadaan tanda tangan sebagai bentuk pengesahan dan persetujuan dalam dokumen-dokumen penting adalah hal yang wajib. Seiring perkembangan teknologi saat ini, proses penandatanganan dapat dilakukan dalam media digital seperti handphone maupun media lainnya. Kemampuan sistem untuk mengidentifikasi tanda tangan seseorang menjadi penting karena banyak pemalsuan yang terjadi. Penelitian ini bertujuan untuk mengimplementasikan metode deteksi tepi Laplacian dan jarak Euclidean untuk mengidentifikasi tanda tangan seseorang. Total citra yang digunakan yaitu 20 tanda tangan dari 10 orang yang berbeda dimana 15 tanda tangan sebagai data citra latih dan 5 tanda tangan sebagai data citra uji. Hasil penelitian ini menunjukkan bahwa metode deteksi tepi Laplacian dan jarak Euclidean memiliki akurasi sebesar 94% dengan 1 ketetanggaan, dengan 2 ketetanggaan memiliki akurasi sebesar 60%, dan memiliki akurasi sebesar 74% dengan 3 ketetanggaan.Kata Kunci : tanda tangan, deteksi tepi Laplacian dan jarak Euclidean

Optimal Smart Grid Management System in Campus Building Syarifah Muthia Putri; Dina Maizana
JURNAL NASIONAL TEKNIK ELEKTRO Vol 9, No 3: November 2020
Publisher : Jurusan Teknik Elektro Universitas Andalas

The utilization of well-managed electrical energy sources will result in high energy efficiency and reliability. Smart grid uses electricity management with 2-way communication that allows loads and sources to corporate each other. Campus is a place that requires priority in the availability of energy and it requires smart grid management. This research will contain smart grid management systems on campus that use multisource to fulfil dynamic loads conditions so as to produce optimal smart grid management. The method that use to analysis the system is conventional method. The optimal smart grid achieved by analysis the sources and loads energy needed and then create a management system that have substantial impact on campus electrical system. The results of this research that smart grid system ensures electrical conditions for the needs of these dynamic loads can be fulfilled which is without a smart grid there is lack of energy for 3 days, whereas with a smart grid there is no lack of energy in the campus building.Keywords : Smart Grid, Campus, Management

Perancangan Mesin Pompa Air Tenaga Surya untuk Mengurangi Konsumsi Listrik Skala Rumahan Zaenal Arifin; Aries Jehan Tamamy; Nur Islahu
JURNAL NASIONAL TEKNIK ELEKTRO Vol 9, No 2: July 2020
Publisher : Jurusan Teknik Elektro Universitas Andalas

One of the household appliances which consumes quite a large amount of electricity is a water pumping machine. Almost every house that uses well water, uses a water pumping machine to suck water from the ground into a temporary water reservoir (water reservoir). To reduce the electricity load in meeting the needs of water distribution for household scale, can be done by making a water pump system that is equipped with a Solar Panel (PV). Solar panels or PV that are used in this research have a capacity of 100 WP consisting of 2 pieces of 50 WP PV arranged in parallel. The type of PV used is monocrystal with SHINYOKU brand. The testing is done by measuring the output capacity of a water pump and compare it with the power needed by the water pump. In the calculation of water discharge, the water pump is able to pump water with a volume of 8.5 liters / minute. The water pump power was measured using a watt meter, the power needed by the water pump is 223 watt/hour. The duration of time needed to fully fill a 1000 liter water reservoir is 2 hours or 119 minutes consumes 450 watt. If calculated for 1 month (30 days), using a solar water pump system could reduce power consumptions up to 13500 w or 13.5 Kw.Keywords : Water Pump, Solar Panel (PV), Power, Output Capasity. AbstrakSalah satu peralatan rumah tangga yang mengkonsumsi daya listrik cukup besar adalah mesin pompa air. Hampir setiap rumah yang memanfaatkan air sumur, menggunakan mesin pompa air untuk menyedot air dari dalam tanah ke dalam bak penampungan air sementara (tandon air). Untuk mengurangi beban listrik dalam pemenuhan kebutuhan distribusi air untuk skala rumah tangga, dapat dilakukan dengan membuat sistem pompa air yang dilengkapi dengan Panel Surya (PV). Panel surya atau PV yang digunakan pada riset ini mempunyai kapasitas 100 WP yang terdiri dari 2 buah PV 50 WP dirangkai secara pararel. PV yang digunakan berjenis monocrystal dengan merek SHINYOKU. Pengujian dilakukan dengan mengukur debit air pompa air dan membandingkannya dengan daya yang dibutuhkan oleh pompa air tersebut. Dalam perhitungan debit air, pompa air mampu mengalirkan air dengan volume 8,5 liter/menit. Daya pompa air diukur dengan menggunakan watt meter, daya yang dibutuhkan oleh pompa air tersebut sebesar 223 watt/hour. Durasi waktu yang dibutuhkan untuk mengisi penuh tandon air berukuran 1000 liter yaitu selama 2 jam atau 119 menit dengan mengkonsumsi 450 watt. Apabila dikalkulasikan selama 1 bulan (30 hari), dengan mamnfaatkan sistem pompa air tenaga surya dapat mengurangi konsumsi daya hingga 13500 watt atau 13,5Kw.Kata Kunci : Mesin Pompa Air, Panel Surya (PV), Daya, Debit Air.

Utilizing Unified Power Flow Controller for Voltage Stability Improvement of the Electric Power Transmission System of Ghana William Duodu Asihene; Francis Boafo Effah; Erwin Normanyo
JURNAL NASIONAL TEKNIK ELEKTRO Vol 9, No 1: March 2020
Publisher : Jurusan Teknik Elektro Universitas Andalas

Interconnecting power transmission systems provide reliability of electric power supply. The security of the system is however questioned when a disturbance in any part of the interconnected system causes instability in the entire network. Unified Power Flow Controller (UPFC), which is a member of the flexible alternating current transmission system (FACTS) family, has the capability of controlling active and reactive power flow in a transmission line thereby improving the voltage stability of the system especially at the 500 kV configuration level. The performance of a 161-kV UPFC modelled in SimPowerSystems is tested on Ghana’s power transmission network. The optimal placement of the UPFC is done using fast voltage stability index (FVSI) and maximum loadability assessment (MLA). The results show that the device improved the connecting bus voltage from 0.88 p.u. to 0.98 p.u. Active power loss in the network was also reduced from 13.40 MW to 10.39 MW when the UPFC was in circuit.Keywords: Ghana, Stability, Transmission system and Unified Power Flow Controller (UPFC)

Disturbance Characteristics of Induction Cooker on a Grid-Connected Photovoltaic System in Frequency Range of 9-150 kHz Faiz Husnayain; Faizal Tamim; Budi Sudiarto
JURNAL NASIONAL TEKNIK ELEKTRO Vol 9, No 2: July 2020
Publisher : Jurusan Teknik Elektro Universitas Andalas

This study aims to investigate the disturbance's characteristics induced by the induction cooker of the On-Grid PV System that is installed in the MRPQ at the Faculty of Engineering Universitas Indonesia (FTUI). In addition, this research is also to find out the behavior of the induction cooker on a frequency range of 9-15kHz. The load was connected to Switching Mode Power Supply (SMPS) that connected to the utility grid. Furthermore, the utilization of inverter that used SMPS technology may generate disturbance mostly at high frequency from 9 kHz to 150 kHz. Disturbance generated by each tool from the equipment in the PV system and household appliances may also affect each other in its operation. However, research and standardization regarding the effect of induction cooker disturbances on the PV system for frequency ranges of 9-150 kHz are still limited. Therefore, this research focuses on observing behavior and the characteristics of a disturbance generated by the induction cooker. There are two induction cookers investigated, brand A and B. The results show that the induction cooker generates disturbance at a frequency of 9-150 kHz, and the increased power used at the load will also increase the disturbance value. Furthermore, brand A has a more significant average incremental gradient compared to brand B induction cookers of 260% or 17.05mV / W for brand A and 6.58mV / W for brand B.Keywords: power quality, disturbance characteristics, induction cooker, on-grid photovoltaic, 9-150 kHz

Pengembangan Human Machine Interface (HMI) pada Simulator Sortir Bola sebagai Media Pembelajaran Otomasi Industri Helmy Rahadian; M Ary Heryanto
JURNAL NASIONAL TEKNIK ELEKTRO Vol 9, No 2: July 2020
Publisher : Jurusan Teknik Elektro Universitas Andalas

Human Machine Interface (HMI) and Programmable Logic Controller (PLC) are widely used in the industry to monitor and control the production process. As part of industrial automation technology, expertise in designing HMI and programming PLC are an absolute necessity especially in the industrial 4.0 era which demands a professional and competent workforce. To meet these requirements, Program Studi Teknik Elektro Universitas Dian Nuswantoro has evaluated the curriculum, especially in the Elektronika Industri course. Based on stakeholder recommendation, learning outcomes are modified to support the graduate's profile that has expertise in industrial automation technology. Furthermore, a ball sorting simulator has been used as a medium for learning industrial automation. Unfortunately, the simulator only supports PLC learning. Therefore, it is necessary to develop the HMI system in the simulator. This paper explains the design and development of the HMI system based on Mitsubishi GOT2000 using the GT Designer3 application. The development of the HMI system starts from determining I/O and process parameters, making the layout, modifying the ladder diagram, and testing. Based on the test results, the HMI system can work well so that technically the ball sorting simulator has supported the learning of industrial automation technology both in PLC and HMI fields.Keywords : automation, learning, simulator, PLC, HMI AbstrakHuman Machine Interface (HMI) dan Programmable Logic Controller (PLC) digunakan luas di industri guna memonitor dan mengatur proses produksi. Sebagai bagian dari teknologi otomasi industri, penguasaan keahlian dan keterampilan mendesain HMI dan memprogram PLC menjadi kebutuhan mutlak terlebih di era industri 4.0 yang menuntut tenaga kerja profesional dan kompeten. Guna memenuhi tuntutan tersebut, Program Studi Teknik Elektro Universitas Dian Nuswantoro telah melakukan evaluasi terhadap kurikulum khususnya pada mata kuliah Elektronika Industri. Berdasarkan masukan dari stakeholder, Program Studi menambahkan capaian pembelajaran mata kuliah yang mendukung profil lulusan dengan penguasaan teknologi otomasi industri khususnya PLC dan HMI. Selain itu, sebuah simulator sortir bola telah rutin digunakan sebagai media pembelajaran otomasi industri. Namun, simulator tersebut terbatas untuk media pembelajaran PLC. Oleh karena itu, perlu dilakukan pengembangan sistem HMI pada simulator. Makalah ini membahas perancangan dan pengembangan sistem HMI berbasis panel Mitsubishi GOT2000 menggunakan aplikasi GT Designer3. Pengembangan sistem HMI dimulai dari penentuan I/O dan parameter proses sortir, pembuatan layout, modifikasi ladder diagram dan pengujian. Berdasarkan hasil pengujian yang telah dilakukan, sistem HMI dapat bekerja dengan baik sehingga secara teknis simulator sortir bola telah mendukung proses pembelajaran teknologi otomasi industri baik PLC maupun HMI.Kata Kunci : otomasi, pembelajaran, simulator, PLC, HMI

Pengaruh Penggunaan Pemancar-penerima pada Controller Area Network R Mochammad Affan Bagus Satria; Awang Noor Indra Wardana; Nazrul Effendy
JURNAL NASIONAL TEKNIK ELEKTRO Vol 9, No 2: July 2020
Publisher : Jurusan Teknik Elektro Universitas Andalas

Controller Area Network (CAN) is a communication network protocol that has been used in various fields as in automotive system to the industrial process. Input/output module as the CAN node in the network can be located nearby or distant from the controller. On the other hand, the CAN network must be designed to reduce the wiring harness significantly with latency as short as possible. CAN protocol can be built with and without the transceiver component. Analysis of the performance of both types of CAN network is conducted to know the exact distance to use transceiver. This research was conducted to analyze the impact of the transceiver on the latency of the CAN system, within the bus length variation. The transceiver and cable length variation were used as the factors of the statistical test that was conducted as the data analysis method in the research. The bus length varies from 50 m, 55 m, 60 m, 65 m, to 70 m. The two-way analysis of variance test and Tukey contrast test were used with a significance level of 0.05. There are three results of the two-way analysis of variance test, showing that significant differences have occurred on the effect of the transceiver, the bus length variation, and interaction between them, giving a p-value of 0.0003, 0.0008, and 0.0034 respectively. The results of the Tukey contrast test have shown that the latency of CAN systems without transceiver does not differ significantly on less than 65 m cable length. The analysis has concluded that the CAN system can well function without transceiver which is the cable length is less than 65 m.Keywords : CAN, communication protocol, cable length variation, latency AbstrakController Area Network (CAN) merupakan suatu protokol jaringan komunikasi yang telah digunakan pada berbagai bidang seperti sistem kendaran bermotor sampai sistem industri proses. Modul masukan/keluaran sebagai node dalam jaringan CAN dapat terletak berdekatan dengan pengendali atau jauh dari pengendali. Di sisi lain, jaringan CAN harus memiliki sistem pengkabelan yang sederhana dan waktu latensi yang singkat. Jaringan komunikasi CAN dapat dibangun dengan menggunakan pemancar-penerima dan tanpa pemancar-penerima. Analisis performa dari kedua jaringan tersebut dilakukan untuk mengetahui pada panjang kabel berapa komponen pemancar-penerima dibutuhkan. Dalam penelitian ini, dilakukan analisis dari pengaruh komponen pemancar-penerima terhadap parameter latensi, dalam panjang kabel yang bervariasi. Terdapat dua faktor dalam melakukan analisis data, yaitu faktor komponen pemancar-penerima dan faktor variasi panjang kabel pada 50 m, 55 m, 60 m, 65 m, dan 70 m. Metode yang diimplementasikan dalam melakukan analisis data adalah uji analisis variasi dua jalur dan uji kontras Tukey, dengan tingkat signifikansi sebesar 0,05. Uji analisis variasi dua jalur memberikan tiga hasil nilai-p dari pengaruh pemancar-penerima, pengaruh variasi panjang kabel, serta interaksi dari keduanya, yaitu berturut-turut sebesar 0,0003, 0,0008, dan 0,0034. Hasil tersebut lebih kecil dari tingkat signifikansi yang digunakan, sehingga dapat ditarik kesimpulan bahwa komponen pemancar-penerima serta variasi panjang kabel mempengaruhi nilai latensi sistem secara signifikan. Hasil uji Tukey juga menunjukan bahwa selama panjang kabel kurang dari 65 m, latensi dari jaringan CAN tanpa pemancar-penerima tidak berbeda secara signifikan. Hasil analisis tersebut menunjukan bahwa bahwa jaringan CAN tanpa pemancar-penerima dapat digunakan dengan baik selama panjang kabel kurang dari 65 m.Kata kunci : CAN, protokol komunikasi, variasi panjang kabel, latensi

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