Jurnal Rekayasa elektrika
The journal publishes original papers in the field of electrical, computer and informatics engineering which covers, but not limited to, the following scope: Electronics: Electronic Materials, Microelectronic System, Design and Implementation of Application Specific Integrated Circuits (ASIC), VLSI Design, System-on-a-Chip (SoC) and Electronic Instrumentation Using CAD Tools, digital signal & data Processing, , Biomedical Transducers and instrumentation, Medical Imaging Equipment and Techniques, Biomedical Imaging and Image Processing, Biomechanics and Rehabilitation Engineering, Biomaterials and Drug Delivery Systems; Electrical: Electrical Engineering Materials, Electric Power Generation, Transmission and Distribution, Power Electronics, Power Quality, Power Economic, FACTS, Renewable Energy, Electric Traction, Electromagnetic Compatibility, High Voltage Insulation Technologies, High Voltage Apparatuses, Lightning Detection and Protection, Power System Analysis, SCADA, Electrical Measurements; Telecommunication: Modulation and Signal Processing for Telecommunication, Information Theory and Coding, Antenna and Wave Propagation, Wireless and Mobile Communications, Radio Communication, Communication Electronics and Microwave, Radar Imaging, Distributed Platform, Communication Network and Systems, Telematics Services and Security Network; Control: Optimal, Robust and Adaptive Controls, Non Linear and Stochastic Controls, Modeling and Identification, Robotics, Image Based Control, Hybrid and Switching Control, Process Optimization and Scheduling, Control and Intelligent Systems, Artificial Intelligent and Expert System, Fuzzy Logic and Neural Network, Complex Adaptive Systems; Computer and Informatics: Computer Architecture, Parallel and Distributed Computer, Pervasive Computing, Computer Network, Embedded System, Human—Computer Interaction, Virtual/Augmented Reality, Computer Security, Software Engineering (Software: Lifecycle, Management, Engineering Process, Engineering Tools and Methods), Programming (Programming Methodology and Paradigm), Data Engineering (Data and Knowledge level Modeling, Information Management (DB) practices, Knowledge Based Management System, Knowledge Discovery in Data), Network Traffic Modeling, Performance Modeling, Dependable Computing, High Performance Computing, Computer Security, Human-Machine Interface, Stochastic Systems, Information Theory, Intelligent Systems, IT Governance, Networking Technology, Optical Communication Technology, Next Generation Media, Robotic Instrumentation, Information Search Engine, Multimedia Security, Computer Vision, Information Retrieval, Intelligent System, Distributed Computing System, Mobile Processing, Next Network Generation, Computer Network Security, Natural Language Processing, Business Process, Cognitive Systems. Signal and System: Detection, estimation and prediction for signals and systems, Pattern recognition and classification, Artificial intelligence and data analytics, Machine learning, Deep learning, Audio and speech signal processing, Image, video, and multimedia signal processing, Sensor signal processing, Biomedical signal processing and systems, Bio-inspired systems, Coding and compression, Cryptography, and information hiding
Articles
600 Documents
<![CDATA[Kontrol Tegangan pada Sistem Hybrid Panel Surya-Turbin Angin Menggunakan Manajemen Penyimpanan Baterai ]]>
<![CDATA[Soedibyo Soedibyo]]>;
<![CDATA[Rezi Delfianti]]>;
<![CDATA[Feby Agung Pamuji]]>;
<![CDATA[Mochamad Ashari]]>
<![CDATA[ Jurnal Rekayasa Elektrika Vol 16, No 3 (2020) ]]>
Publisher : <![CDATA[Universitas Syiah Kuala ]]>
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DOI: 10.17529/jre.v16i3.16010
<![CDATA[The purpose of this paper is to determine the control strategy of the renewable energy systems of hybrid solar panel power and wind turbines in maximizing voltage balance. The voltage control strategy needs to be designed, mainly when different load changes occur. If it is not done, it will affect the balance of power supplied to the load and usually damage the equipment used. Solar and wind energy sources significantly influence the stability of the applied voltage’s quality due to the fluctuating nature of renewable energy. This paper proposes control strategies for the use of PIs and the signal conditioning devices that are modified using the battery charging and discharging modeling while taking into account battery lifetime using PSIM software so that optimal voltage results from hybrid solar panel and wind turbine systems are obtained. The battery will be used as energy storage when the hybrid output power is over, which will then be used again when the hybrid output power is less than the load requirement. The signal conditioning device in this study uses five power converters, one AC to DC converter, two DC-DC boost converters, one bidirectional converter, 1 DC-AC bidirectional converter. Maximum output power uses MPPT, which is applied to the boost converter, whereas to regulate the voltage through charging and discharging the battery through the bidirectional buck-boost converter. This strategy provides the appropriate voltage on the AC side.]]>
<![CDATA[Perancangan Rem Linier Memakai Fluida MR dengan Kendali Arus Listrik Berbasis Fungsi Linier ]]>
<![CDATA[Estiko Rijanto]]>;
<![CDATA[Aditya Sukma Nugraha]]>;
<![CDATA[Arif Sugiharto]]>;
<![CDATA[Rifa Rahmayanti]]>;
<![CDATA[Sapdo Utomo]]>
<![CDATA[ Jurnal Rekayasa Elektrika Vol 13, No 3 (2017) ]]>
Publisher : <![CDATA[Universitas Syiah Kuala ]]>
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DOI: 10.17529/jre.v13i3.8580
<![CDATA[Magneto rheological (MR) fluid has been used in various electro mechanical devices since it has advantages of being able to be controlled by external magnetic force. However, application of the MR fluid for linear brakes is still scarce. This article proposes a new design of linear MR brake. It has multiple magnetic poles, and its core can be connected in series inside the piston. Equations which express relationships between mechanical force and magnetic force as well as magnetic force and electric current have been derived. As a result, a polynomial function was obtained which expressed mechanical force of the brake as a function of electric current. Parameter values of geometric dimension and magnetic permeabilities of components were substituted into the equation, and a control law is proposed to control the brake force by manipulating current using the inverse of a linear function. When electric current of 1 A was supplied into the coil, brake force of 111.4 Newton was obtained. Various values of brake force can easily be realized by controlling electric current based on the derived linear function control law.]]>
<![CDATA[Kelayakan Raspberry Pi sebagai Web Server: Perbandingan Kinerja Nginx, Apache, dan Lighttpd pada Platform Raspberry Pi ]]>
<![CDATA[Rahmad Dawood]]>;
<![CDATA[Said Fairuz Qiana]]>;
<![CDATA[Sayed Muchallil]]>
<![CDATA[ Jurnal Rekayasa Elektrika Vol 11, No 1 (2014) ]]>
Publisher : <![CDATA[Universitas Syiah Kuala ]]>
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DOI: 10.17529/jre.v11i1.1992
<![CDATA[Raspberry Pi is a small-sized computer, but it can function like an ordinary computer. Because it can function like a regular PC then it is also possible to run a web server application on the Raspberry Pi. This paper will report results from testing the feasibility and performance of running a web server on the Raspberry Pi. The test was conducted on the current top three most popular web servers, which are: Apache, Nginx, and Lighttpd. The parameters used to evaluate the feasibility and performance of these web servers were: maximum request and reply time. The results from the test showed that it is feasible to run all three web servers on the Raspberry Pi but Nginx gave the best performance followed by Lighttpd and Apache.Keywords: Raspberry Pi, web server, Apache, Lighttpd, Nginx, web server performance]]>
<![CDATA[Analisis Perbandingan Kinerja Sensor Jarak HC-SR04 dan GP2Y0A21YK Dengan Menggunakan Thingspeak dan Wireshark ]]>
<![CDATA[Iman Hedi Santoso]]>;
<![CDATA[Arif Indra Irawan]]>
<![CDATA[ Jurnal Rekayasa Elektrika Vol 18, No 1 (2022) ]]>
Publisher : <![CDATA[Universitas Syiah Kuala ]]>
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DOI: 10.17529/jre.v18i1.23359
<![CDATA[Until now, Internet of Things (IoT) is a very interesting topic to research. This is due to the wide role that IoT can play in human life. This study aims to compare the performance of two sensors in an IoT-based distance detection system with the focus of the parameters being tested: sensor readings, Qos of data transmission, and power requirements. The two sensors that are the subject of comparison are HC-SR04 and GP2YA21YK. As an analytical tool, this research uses two tools, namely Thingspeak and Wireshak. The performance test results show that in terms of accuracy in determining distance, the HC-SR04 has a much better performance than the GP2YA21YK. On HC SR04, the average reading error is 0.82 cm, while on GP2YA21YK it is 14.40 cm. Meanwhile, in terms of QoS parameters, the two sensor systems show almost commensurate performance, the packet loss is both 0%, the throughput value is 37.01 kbps on HC-SR04 and 38.12 kbps on GP2YA21YK. As for the delay, the HC-SR04 sensor gives a value of 33.55 ms, and on GP2YA21YK it is 26.1 ms. Furthermore, based on power requirements, sensor systems using the HC-SR04 consume 14.36% less power than the system that use GP2YA21YK. By referring to the results of measurements and visualizations using Wireshark and Thingspeak, it can be concluded that the distance detection system using the HC-SR04 sensor is better than the system with the GP2YA21YK.]]>
<![CDATA[Prototipe Pengukuran Kadar Gula dalam Tubuh Manusia Melalui Urin ]]>
<![CDATA[Mohammad Hafiz Hersyah]]>;
<![CDATA[Budi Rahmadya]]>;
<![CDATA[Gentha Wijaya]]>
<![CDATA[ Jurnal Rekayasa Elektrika Vol 15, No 2 (2019) ]]>
Publisher : <![CDATA[Universitas Syiah Kuala ]]>
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DOI: 10.17529/jre.v15i2.13034
<![CDATA[In this research, we propose a prototype to measure glucose index in human body after applying benedict reagen into urine samples. This system divides into two main components that are identification device and android smartphone. The identification device consists of TCS3200 colour sensor and a raspberry pi. The TCS3200 colour sensor's function is to predict the alteration of urine sample and determine the colour category according to the benedict rule and to measure the glucose in the sample. The Raspberry pi function is to process the data that acquired from the colour sensor. By optimizing with Tsukamoto Fuzzy Logic Control, the research successfully identifies the glucose by achieving 100% and the result of fuzzy logic control on Raspberry Pi as decision making by urine in 90% and by conflicting minimum error in 5.6%.]]>
<![CDATA[Disign SPWM multilevel inverter single phase15 level ]]>
<![CDATA[Effendi Effendi]]>;
<![CDATA[Ira Devi Sara]]>;
<![CDATA[Rakhmad Syafutra Lubis]]>
<![CDATA[ Jurnal Rekayasa Elektrika Vol 12, No 2 (2016) ]]>
Publisher : <![CDATA[Universitas Syiah Kuala ]]>
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DOI: 10.17529/jre.v12i2.3966
<![CDATA[Fifteen level single phase multilevel inverter is constructed using power circuit consist of 7 MOSFETs, seven independents DC sources, seven diodes, and an H-Bridge circuit. Switching method used in this MLI is sinusoidal pulse width modulation (SPWM) multicarrier where the reference wave in the form of a sinusoidal wave. Multicarrier SPWM circuit is designed using electronic components such as Op-Amp that used as a comparator and some logic gates such as AND, OR and NOT gate to trigger S1, S2, S3, S4, S5, S6, S7, and H-Bridge circuit. Carrier waves used in this MLI modified from the triangle wave that having a frequency into carrier waves without frequency (DC sources) where THD that generated into 5.502%. While methods that use frequency such as Phase Disposition PWM (PD PWM), Phase Shift PWM (PS-PWM), and Carrier Overlapping PWM (CO PWM) that produces THD greater than the proposed method, this system was simulated using PSIM software. ]]>
<![CDATA[Analisa Statistik Pengunjung Situs Resmi Universitas Syiah Kuala (www.unsyiah.ac.id) ]]>
<![CDATA[. Syahrial]]>;
<![CDATA[Khairul Munadi]]>;
<![CDATA[Nunung Mardatillah]]>
<![CDATA[ Jurnal Rekayasa Elektrika Vol 9, No 2 (2010) ]]>
Publisher : <![CDATA[Universitas Syiah Kuala ]]>
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DOI: 10.17529/jre.v9i2.165
<![CDATA[Sebuah situs web umumnya merupakan bagiandari suatu nama domain (domain name) atau sub domain diWorld Web Wide (WWW) di internet. Website berguna untukmempermudah tukar menukar informasi dan memperbaruiinformasi kepada sesama pengguna internet. Bagianterpenting dari web adalah desain dan statistika laporan.Desain web yang indah dapat mencuri perhatian pengunjungsedangkan statistika berguna untuk mengetahui siapa danapa saja yang dicari oleh para pengunjung di website.Banyak tool gratis yang digunakan untuk menganalisastatistik website, salah satunya adalah Google Analytics.Sehingga dengan menggunakan Google Analytics dapat dievaluasi berapa jumlah pengunjung, halaman yang dibuka,waktu kunjungan, pengunjung berdasarkan letak geografis,loyalitas pengunjung dari situs Universitas Syiah Kuala.]]>
<![CDATA[Penerapan Logika Fuzzy sebagai Alat Deteksi Hipotermia dan Hipertermia Pada Manusia Berbasis Internet Of Thing (Iot) ]]>
<![CDATA[Widya Cahyadi]]>;
<![CDATA[Ali Rizal Chaidir]]>;
<![CDATA[Muchammad Farhan Anda]]>
<![CDATA[ Jurnal Rekayasa Elektrika Vol 17, No 2 (2021) ]]>
Publisher : <![CDATA[Universitas Syiah Kuala ]]>
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DOI: 10.17529/jre.v17i2.15670
<![CDATA[Health is an important thing for human life. One way to determine a person’s health can be done by examining vital signs (TTV) to find out clinical signs by measuring the most basic body functions. TTV examination is also useful in determining the appropriate medical planning and can be used to strengthen the diagnosis of a disease. Most of the illness or even death related to environmental exposure temperature can be prevented, but often the victim’s decision is wrong, or the patient’s reporting is delayed. Although a person in good health may experience varying degrees of exposure to heat or cold at different times, a person will be relatively at risk for illness and death in extreme environmental temperatures. One solution to overcome this problem is the use of Internet of Thing (IoT)-based hypothermia and hyperthermia detection tools that can detect disease early so that prevention can be done before it becomes more dangerous. The features of this tool are the measurement of body temperature, heart rate, and the detection of hypothermia or hyperthermia. This study, testing the application of fuzzy logic as a hypothermia and hyperthermia detection tool based on IoT-based body temperature and heart rate. The results of system testing with 10 subjects from instrumentation tools showed the same results as the medical officer’s statement with a 100% success rate. ]]>
<![CDATA[Self-Organisation Network (SON) Dengan Mekanisme Load Balancing ]]>
<![CDATA[Ardian Ulvan]]>;
<![CDATA[Melvi Ulvan]]>;
<![CDATA[Robert Bestak]]>
<![CDATA[ Jurnal Rekayasa Elektrika Vol 14, No 3 (2018) ]]>
Publisher : <![CDATA[Universitas Syiah Kuala ]]>
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DOI: 10.17529/jre.v14i3.9987
<![CDATA[Load balancing is one of the mechanism used in the self-organization network (SON) to balance the traffic at the overloaded base station with the adjacent low-loaded base station. Load balancing is done by adjusting the handover parameters (metric) to obtain the optimal traffic balance. In this work, the adjusted parameters are the capacity of the cell. Cell capacity is strongly influenced by the bandwidth, modulation type, and the bit rate used by the user. The performance of load balancing was tested by a simulation and network test-bed measurement. The testing results on the Long-Term Evolution Advanced network showed the greater the bandwidth the greater the capacity of the cell. Moreover, the larger type of modulation, the cell capacity will also be greater. On the other hand, the greater bit rate used by the user, then the cell capacity will decrease. The calculation analysis of cell capacity is taken as the basic operation for load balancing procedure. A load balancing process algorithm is introduced to describe the mentioned procedure. The algorithm also considers the ping-pong effect that might occur due to the delay on the handover process.]]>
<![CDATA[Perbandingan Kinerja Algoritma Optimasi pada Metode Random Forest untuk Deteksi Kegagalan Jantung ]]>
<![CDATA[Unang Sunarya]]>;
<![CDATA[Tita Haryanti]]>
<![CDATA[ Jurnal Rekayasa Elektrika Vol 18, No 4 (2022) ]]>
Publisher : <![CDATA[Universitas Syiah Kuala ]]>
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DOI: 10.17529/jre.v18i4.26981
<![CDATA[Abstrak— Jantung merupakan salah satu organ terpenting dalam tubuh manusia. Kegagalan jantung pada pasien dapat mengakibatkan dampak yang vital dan berujung pada kematian. Adapun kegagalan jantung bukan hanya dipengaruhi oleh faktor usia, juga dipengaruhi komorbid dan pola hidup dari pasien. Berbagai upaya medis telah banyak dilakukan untuk mendeteksi kegagalan jantung yang mengharuskan pasien dirawat intensif di rumah sakit yang tentunya membuat pasien merasa kurang nyaman. Maka dari itu, dalam penelitian ini dirancang sebuah aplikasi machine learning untuk deteksi kegagalan jantung yang dapat mengklasifikasikan kondisi pasien ke arah kematian atau bertahan berdasarkan gejala-gejala yang dimiliki pasien. Adapun algoritma machine learning yang digunakan adalah random forest yang dioptimasi dengan tiga buah algoritma optimasi yaitu grid search, random search dan Bayesian search sebagai perbandingan. Kinerja ketiga algoritma optimasi kemudian diukur menggunakan akurasi, presisi dan recall. Ada 299 sampel pasien yang digunakan dalam penelitian ini. Hasil menunjukkan bahwa random forest dengan algoritma optimasi random search mencapai kinerja yang paling unggul dengan akurasi rata-rata sebesar 85,63 %, presisi rata-rata 87,38% dan recall 85,63%. ]]>
