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JURNAL NASIONAL TEKNIK ELEKTRO
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.
Arjuna Subject : -
Articles 610 Documents
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Analisis Unjuk Kerja FBMC-OQAM Pada Transmisi Citra QR Code Menggunakan Ekualisasi Zero Forcing Raynaldi, Brayan; Isnawati, Anggun Fitrian; Afandi, Mas Aly
JURNAL NASIONAL TEKNIK ELEKTRO Vol 10, No 1: March 2021
Publisher : Jurusan Teknik Elektro Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (599.644 KB) | DOI: 10.25077/jnte.v10n1.805.2021

Abstract

Wireless communication applications in the future require high data rate and efficient spectrum services. To be able to provide a high bit rate we can use plural modulation or multicarrier. The use of FBMC OQAM modulation aims to provide increased performance compared to the previous modulation, namely OFDM, this is due to the use of FBMC with its orthogonality properties and the use of OQAM which has a stronger advantage over the dispersion effect and has a high data rate. To get the information signal issued, ZF (Zero Forcing) equalization is used. Simulation results show that FBMC OQAM with ZF can reduce BER from 0.4275 at SNR 0 dB to 0.01231 at SNR 25 dB. Whereas the OQAM without ZF FBMC has a BER value of 0.513 at SNR 0 dB to 0.5212 at SNR 25 dB. This shows that the FBMC OQAM using ZF has a lower BER value than the FBMC OQAM without ZF.  Keywords : FBMC, OQAM, ZF, SNR, BERAbstrakAplikasi komunikasi nirkabel di masa depan menuntut pelayanan data rate yang tinggi dan spektrum yang efisien. Untuk dapat menyediakan laju bit yang tinggi dapat menggunakan modulasi jamak atau multicarrier. Penggunaan modulasi FBMC OQAM bertujuan memberikan peningkatan unjukkerja dibandingkan dengan modulasi sebelumnya yakni OFDM, hal ini karena penggunaan FBMC dengan sifat orthogonalitasnya dan penggunaan OQAM yang memiliki keunggulan lebih kuat terhadap efek dispersi serta memiliki kecepatan data yang tinggi. Untuk mendapatkan sinyal informasi yang dikirimkan, digunakan ekualisasi ZF (Zero Forcing). Hasil simulasi menunjukkan FBMC OQAM dengan ZF dapat menurunkan BER dari nilai 0,4275 pada SNR 0 dB menjadi 0,01231 pada SNR 25 dB. Sedangkan pada FBMC OQAM tanpa ZF memiliki nilai BER 0,513 pada SNR 0 dB menjadi 0,5212 pada SNR 25 dB. Hal ini menunjukkan bahwa FBMC OQAM menggunakan ZF mempunyai nilai BER yang lebih rendah dibandingkan FBMC OQAM tanpa ZF. Kata Kunci : FBMC, OQAM, ZF, SNR, BER 
Optimal Smart Grid Management System in Campus Building Putri, Syarifah Muthia; Maizana, Dina
JURNAL NASIONAL TEKNIK ELEKTRO Vol 9, No 3: November 2020
Publisher : Jurusan Teknik Elektro Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1120.97 KB) | DOI: 10.25077/jnte.v9n3.757.2020

Abstract

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
IoT-Based Logistic Robot for Real-Time Monitoring and Control Patients during COVID-19 Pandemic Hafidz, Isa; Adiputra, Dimas; Montolalu, Billy; Prastyabudi, Wahyu Andy; Widyantara, Helmy; Afandi, Mas Aly
JURNAL NASIONAL TEKNIK ELEKTRO Vol 9, No 3: November 2020
Publisher : Jurusan Teknik Elektro Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jnte.v9n3.810.2020

Abstract

Coronavirus disease (COVID-19) is a disease that disrupts the respiratory tract and infects many people. However, until now, there is still no cure. Therefore a robot service is proposed to minimize direct contact between nurses and patients who are equipped with PPE (Personal Protective Equipment). Robot Service is a robot carrying logistics for patients in the Isolation Room. The robot is expected to be able to help medical personnel work and reduce the risk of medical personnel being exposed to the virus while in the Isolation Room. This robot has a feature to rotate and move along the hospital hallway, using either automatic or normal mode. This robot is also equipped with an Omni infrared camera that can see the environmental conditions around the robot so that it can make it easier for operators to run this robot with a Wi-Fi communication system. With this robot, medical workers can deliver the needs of patients without having to meet face to face, so that the risk of being exposed to the virus can be reduced.Keywords: Coronavirus, Hospital, Medical Personnel, Robot AbstrakCoronavirus disease (COVID-19) is a disease that disrupts the respiratory tract and infects many people. However, until now, there is still no cure. Therefore a robot service is proposed to minimize direct contact between nurses and patients who are equipped with PPE (Personal Protective Equipment). Robot Service is a robot carrying logistics for patients in the Isolation Room. The robot is expected to be able to help medical personnel work and reduce the risk of medical personnel being exposed to the virus while in the Isolation Room. This robot has a feature to rotate and move along the hospital hallway, using either automatic or normal mode. This robot is also equipped with an Omni infrared camera that can see the environmental conditions around the robot so that it can make it easier for operators to run this robot with a Wi-Fi communication system. With this robot, medical workers can deliver the needs of patients without having to meet face to face, so that the risk of being exposed to the virus can be reduced.Kata Kunci: Coronavirus, Hospital, Medical Personnel, Robot
Pengaruh Penggunaan Pemancar-penerima pada Controller Area Network Satria, R Mochammad Affan Bagus; Wardana, Awang Noor Indra; Effendy, Nazrul
JURNAL NASIONAL TEKNIK ELEKTRO Vol 9, No 2: July 2020
Publisher : Jurusan Teknik Elektro Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (823.527 KB) | DOI: 10.25077/jnte.v9n2.769.2020

Abstract

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
Web-based Monitoring System for Power Electronics Devices on Off-grid Solar Power Generator Luthfi, Amirul; Waldi, Eka Putra; Darmawan, Darmawan; Baharudin, Baharudin; Sunaryo, Budi
JURNAL NASIONAL TEKNIK ELEKTRO Vol 10, No 1: March 2021
Publisher : Jurusan Teknik Elektro Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (310.639 KB) | DOI: 10.25077/jnte.v10n1.851.2021

Abstract

Power electronic devices are the main component of the solar power generation system. This study proposes a web-based monitoring system which presents power electronic performance parameter in a real-time across an internet connection. The investigation takes ACS712 and PZEM-004T for the power converter performance measuring and Arduino Mega 2560 with an ethernet shield for data acquisition and transmission. This paper describes the schematic design of the hardware and also explains the software work-flow and structure. The test and calibration on the sensor's voltage and current to standard digital multi-meter Tektronix DMM4050 show the sensor able to accurately read the converter performance parameter and meet the standard IEC-61724. The functionality test on the web-based information system indicates the designed user interface to present the power electronic performance parameter of the solar power generator.Keywords: Monitoring System, Power Electronics and Solar Power
Design of a GSM-Based Skimming Reporting System for Automated Teller Machines Ofosu, Robert Agyare; Fuseini, Mununi; Nii Atuquaye, Ernest Quaye
JURNAL NASIONAL TEKNIK ELEKTRO Vol 9, No 3: November 2020
Publisher : Jurusan Teknik Elektro Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1288.682 KB) | DOI: 10.25077/jnte.v9n3.770.2020

Abstract

In recent years, there has been the unpleasant advent of a new type of credit card fraud called Automated Teller Machine (ATM) skimming. This type of fraud poses a substantial threat to the banking sector because its modus operandi is quite subtler than other known types of ATM fraud. It consists of a criminal implanting a disguised dummy card reader very similar to the ATM’s original card reader at the ATM. This is done to intercept the ATM card data of any unsuspecting customer who tries to withdraw cash. This paper seeks to design a system which will be able to detect and report such devices before they cause harm. The objective of this research was achieved by designing a skimmer incorporating the use of a metal detector for detecting new electronic components within the ATMs card slot region, an ultrasonic sensor for detecting unfamiliar skimmer overlays and the processing power of a microcontroller to coordinate theses sensors which monitor the status of the ATM terminal’s original card reader and send a Short Message Service (SMS) text message whenever the system detects that a skimmer has been attached to the ATM terminal. This concept of skimming detection was designed, tested and simulated under several operating conditions in Proteus 8.0 simulation software to prove the detection method’s efficacy. The simulation results showed that the proposed system provided a decent theoretical skimmer detection technique. However, other factors such as metal detector oscillator instability and the difficulty in accurately modelling the composition of ATM skimmers served as this design’s major drawbacks.Keywords : ATM, Skimming, GSM, Microcontroller
A Robust Scheme for Coherency Detection in Power Systems Adom-Bamfi, Gideon; Frimpong, Emmanuel Asuming
JURNAL NASIONAL TEKNIK ELEKTRO Vol 10, No 2: July 2021
Publisher : Jurusan Teknik Elektro Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (964.568 KB) | DOI: 10.25077/jnte.v10n2.908.2021

Abstract

This paper presents an approach for online generator coherency identification based on windowed dynamic time warping (DTW). Generator rotor speed deviations measured by phasor measurement units (PMUs) are used as input data to compute a DTW dissimilarity matrix. Using the dissimilarity matrix together with Agglomerative Hierarchical Clustering (AHC) and Hubert-Levin index (C-index), generators are optimally grouped into coherent clusters. In addition to the clustering of generators, an index for characterizing the transmission delay of a Wide Area Measurement System (WAMS) is presented. A data delay factor that can indicate whether there is an inconsistent PMU data transmission delay is also proposed. The coherency identification technique and indices were tested using simulations carried out on the IEEE 39-bus system. The test results indicate that the proposed scheme accurately clusters generators into coherent groups. The suggested indices were also found to be valid. Keywords : coherence identification, dynamic time warping, speed deviation, phasor measurement unit, dissimilarity matrix
Parallel Parking System Design with Fuzzy Logic Control Nari, Mochamad Irwan; Mustain, Zainul; Kautsar, Syamsiar; Utomo, Satryo Budi
JURNAL NASIONAL TEKNIK ELEKTRO Vol 10, No 2: July 2021
Publisher : Jurusan Teknik Elektro Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (498.087 KB) | DOI: 10.25077/jnte.v10n2.904.2021

Abstract

The difficulty with parallel parking, especially when going backwards is when adjusting the steering wheel so that the car can park in the right direction. Based on these problems, this study aims to design an automatic parking system. To improve parking success, a trajectory tracking system with fuzzy logic control will be implemented on a 1/7.5 scale test car. The coordinates obtained from the bicycle kinematic model are compared with the design trajectory. The difference between the facing direction read by the gyroscope sensor and the trajectory design is processed using a fuzzy logic controller to direct the servo motor as the steering wheel. The test results obtained that the error value for the position and direction facing in the automatic parking test using fuzzy logic control is 1.25cm and 1.59°.Keywords: Trajectory tracking, gyroscope, fuzzy logic control, parallel parking
Optimization of the Hybrid System for Micro Hydro, Photovoltaic and Biomass Power Generation in Senamat Ulu Village Using Homer Simulation Syawal, Elsi Alfionita; Nazir, Refdinal
JURNAL NASIONAL TEKNIK ELEKTRO Vol 10, No 2: July 2021
Publisher : Jurusan Teknik Elektro Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jnte.v10n2.889.2021

Abstract

Currently, the supply of electrical energy is still not fulfilled in some areas due to the depletion of conventional energy sources and fossil energy. The ideal alternative energy is renewable energy that does not have the potential to run out such as solar energy, biomass and water. Senamat Ulu is a village in Bungo Regency that has the potential for biomass power generation because it has a lot of palm oil plantations covering an area of 3,917 hectares with an average production of 6,901 tons per year. Based on the coordinates of the center of the village, simulation Homer scored solar radiation of 4.43 kWh / m2/ day for Ulu Senamat area. The purpose of this research is to obtain the amount of biomass energy potential and the optimal model for the hybrid system of power generation in Senamat Ulu Village. From the results of the study, it was found that the potential for electrical power from the biomass power plant in Senamat Ulu was 6,113.65 kW consisting of 2,189.08 kW shells and 3,924.57 kW palm fiber. The most optimal generator model is simulation I in terms of the smallest NPC and COE economies, namely NPC $ 275,091 and COE $ 0.0768/kWh where Biomass is 49,946 kWh/year at a cost of $ 0.0271/kWh, PV 26,681 kWh/year with electricity price of $ 0.107/kWh, Micro hydro 156.025 kWh/year with electricity price of $ 0.00992/kWh, Storage Li-ion 8,643 kWh/year and converter 288,331 kWh/year and the time required to payback is 5.8 years.Keywords: Optimization, NPC, COE 
The Reconfiguration of Network at 20 kV Distribution System Nagan Raya Substation with the Addition of the Krueng Isep Hydroelectric Power Plant Ediwan, Ediwan; Muliadi, Muliadi; Mahalla, Mahalla; Nazaruddin, Nazaruddin; Mulkan, Andi
JURNAL NASIONAL TEKNIK ELEKTRO Vol 10, No 2: July 2021
Publisher : Jurusan Teknik Elektro Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (416.864 KB) | DOI: 10.25077/jnte.v10n2.888.2021

Abstract

Switching substations are usually supplied from one express feeder which can cause a low level of reliability due to disruption or outage on the express feeder. Also, the lack of power supply at the ends of the network causes voltage drops. One way to solve this problem is to reconfigure the network. In this study, testing was carried out on a distribution system in the Nagan Raya Regency, namely the distribution system of PT. PLN (Persero) ULP Jeuram originally had a radial system. Furthermore, the distribution system was reconfigured with the Krueng Isep hydroelectric power plant which was included in the PLN ULP Jeuram grid so that the system that was originally radial became a loop configuration. The method used in analyzing the network reconfiguration process is to use the ETAP 12.6 application. As a result, after reconfiguring the network the voltage increased from 19.2 kV to 20.7 kV, the highest increase was at the Beutong Substation which reached 1.5 kV and decreased power losses in the network with a total of 188.2 kW and 263.1 kVAR. Furthermore, before the network reconfiguration, ULP Jeuram SAIFI value was 22.25 times/customers and SAIDI values 1337.74 minutes/ customers. However, after reconfiguring the network, ULP Jeuram SAIFI value fell to 15.39 times/customers and SAIDI to 945.6 minutes/customers, resulting in an increase in system reliability by 70.69%.Keyword: Reconfiguration of network, distribution system, hydroelectric power plant, SAIDI, SAIFI 

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