Garuda - Garba Rujukan Digital

IMPLEMENTASI MODEL 4D DALAM PENGEMBANGAN BUKU DIGITAL MATA KULIAH ELEKTRONIKA DASAR Dewy, Mega Silfia; Isnaini, Muhammad; Simamora, Yoakim; Silitinga, Agnes Irene; Astrid, Erita
JURNAL TEKNOLOGI INFORMASI & KOMUNIKASI DALAM PENDIDIKAN Vol 10, No 2 (2023): Desember - Jurnal Teknologi Informasi dan Komunikasi dalam Pendidikan
Publisher : Pascasarjana Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jtikp.v10i2.54009

Abstrak: Tujuan dari penelitian ini adalah untuk mengetahui implementasi model 4D dalam pengembangan buku digitital mata kuliah Elektronika Dasar dan untuk mengetahui kelayakan buku digital elektronika dasar yang dikembangkan. Penelitian ini merupakan penelitian dengan jenis Research and Development (R & D), dimana model 4D digunakan sebagai acuan tahapan atau prosedur dalam pengembangana buku digital mata kuliah Elektronika Dasar. Model 4D terdiri dari 4 tahapan yaitu define, design, develop dan dissemenitation. Tahapan define merupakan tahapan pengembangan untuk memunculkan dan permasalahan dasar yang dihadapi dalam pembeljaran sehingga diperlukasn suau pengembangan bahan ajar. Tahapan design merupakan tahap awal dalam perancangan buku digital elektronika dasar yang dikembangkan. Tahapan develop merupakan tahapan untuk menghasilkan bentuk akhir dari buku yang dikembangkan setelah melalui tahap validasi dan ujicoba untuk melihat kelayakan buku digital elektronika dasar yang dikembangkan. Tahapan disseminate merupakan tahapan untuk penyebaran dan sosialasi buku digital yang dikembangkan memalui seminar dan juga publikasi pada jurnal ilmiah. Kelayakan buku digital yang dikembangkan dilihat dari dua aspek yaitu validitas dan praktikalitas. Hasil validasi yang didapatkan dari ahli yaitu buku digital yang dikembangkan berada pada kategori sangat valid dan hasil praktikalitas didapatkan dari hasil ujicoba yang dilakukan dalam dua tahapan dimana hasil praktikalitas buku ajar yang dikembangkan berada pada kategori sangat pratis. Dari uji validitas dan praktikalitas yang dilakukan dapat disimpulkan bahwa buku digital elektronika dasar layak digunakan sebagai salah satu alternatif media pembelajaran pada mata kuliah elektronika dasar. Kata Kunci: Buku Digital, Model 4D, Abstract: The aim of this research is to determine the implementation of the 4D model in the development of digital books for Basic Electronics courses and to determine the feasibility of the basic electronics digital books being developed. This research is a Research and Development (R & D) type of research, where the 4D model is used as a reference for stages or procedures in developing digital books for Basic Electronics courses. The 4D model consists of 4 stages, namely define, design, develop and dissement. The define stage is a development stage to raise the basic problems faced in learning so that a development of teaching materials is needed. The design stage is the initial stage in designing the basic electronics digital book being developed. The develop stage is the stage to produce the final form of the book being developed after going through the validation and testing stages to see the feasibility of the basic electronics digital book being developed. The disseminate stage is the stage for disseminating and socializing digital books that are developed through seminars and also publications in scientific journals. The feasibility of the digital book being developed is seen from two aspects, namely validity and practicality. The validation results obtained from experts were that the digital books developed were in the very valid category and the practicality results were obtained from the results of trials carried out in two stages where the practicality results of the textbooks developed were in the very practical category. From the validity and practicality tests carried out, it can be concluded that basic electronics digital books are suitable for use as an alternative learning media in basic electronics courses. Keywords: Digital book, 4D Model

ANALISIS KEBUTUHAN PENGEMBANGAN MODUL SISTEM KENDALI OTOMATIS UNTUK MENDUKUNG PROJECT BASED LEARNING Suryanto, Eka Dodi; Astrid, Erita; Harahap, Muchsin; Purba, Sukarman
JURNAL TEKNOLOGI INFORMASI & KOMUNIKASI DALAM PENDIDIKAN Vol 11, No 1 (2024): Juni - Jurnal Teknologi Informasi dan Komunikasi dalam Pendidikan
Publisher : Pascasarjana Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jtikp.v11i1.60287

Abstrak: Revolusi Industri 4.0 mengharuskan dunia industri untuk memanfaatkan teknologi otomatis pada proses produksi agar bekerja secara efektif dan efisien. Berdasarkan kebutuhan tersebut, maka para lulusan sarjana teknik elektro harus memiliki kompetensi dibidang kendali otomatis agar dapat memenuhi kebutuhan sumber daya manusia di dunia industri saat ini. Dasar Sistem Kendali merupakan salah satu mata kuliah wajib yang harus diselesaikan mahasiswa program studi Teknik Elektro di Universitas Negeri Medan. Berdasarkan pengamatan yang dilakukan, mahasiswa masih kurang memahami tentang implementasi teori sistem kendali dalam dunia industri. Analisis kebutuhan dilakukan untuk mengetahui capaian pembelajaran mata kuliah, kompetensi mahasiswa, dan kebutuhan bahan ajar yang relevan dengan industri. Hasil analisis kebutuhan menunjukkan bahwa capaian pembelajaran belum merujuk pada kebutuhan industri, kompetensi mahasiswa belum memenuhi kebutuhan industri secara praktis dan bahan ajar yang belum sesuai dengan kebutuhan industri. Berdasarkan hasil analisis kebutuhan, rekomendasi yang dapat diberikan adalah pengembangan modul pembelajaran sistem kendali otomatis yang mendukung pembelajaran berbasis proyek.Kata Kunci: Analisis Kebutuhan, Pengembangan Modul, Kendali, Otomatis, SMK Imelda, Pembelajaran Berbasis Proyek. Abstract. Industrial Revolution 4.0 requires industry to utilize automated technology in production processes to work effectively and efficiently. Based on these needs, electrical engineering graduates must have competence in the field of automatic control in order to meet human resource needs in today's industrial world. Basics of Control Systems is one of the mandatory courses that students in the Electrical Engineering study program at Medan State University must complete. Based on observations made, students still do not understand the implementation of control system theory in the industrial world. A needs analysis is carried out to determine course learning outcomes, student competencies, and the need for teaching materials that are relevant to industry. The results of the needs analysis show that learning outcomes do not yet refer to industry needs, student competencies do not practically meet industry needs and teaching materials do not meet industry needs. Based on the results of the needs analysis, the recommendation that can be given is the development of an automatic control system learning module that supports Project Based LearningKeywords: Need Analysis, Module Development, Control, Automatic, Project Based Learning

The Optimal Capacitors Allocation and Sizing in Radial Distribution System for Power Losses Reduces Astrid, Erita; Solihin, Muhammad Dani; Siregar, Rosma; Waluyo, Bakti Dwi
Jurnal Teknik Elektro Indonesia Vol 4 No 2 (2023): JTEIN: Jurnal Teknik Elektro Indonesia
Publisher : Departemen Teknik Elektro Fakultas Teknik Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jtein.v4i2.580

The use of capacitors in electrical systems is widely known for their function to improve power factor and voltage profile while minimizing power losses. It results from the reactive power correction provided by capacitors within the system. It is believed that proper placement and size of capacitors can enhance the electricity quality in power systems. Therefore, numerous methods have been developed regarding the allocation and sizing of capacitors. In this research, a meta-heuristic method, Particle Swarm Optimization (PSO) is applied to find the optimal allocation and sizing of capacitors in order to reduce losses. The method has also been improved by modifying the value of inertia weight to optimize the algorithm's performance in finding the solution. The method is tested on an IEEE 34 bus radial distribution system to observe its performance and effectiveness in identifying the solution. The power loss in the distribution system plays the most important role in the economic operation of the power system. It will be used as a fitness function for each particle in the algorithm. The obtained test results include the size of the capacitor and the optimal placement of the capacitor installation.

Rancang Bangun DC Chopper Empat Kuadran untuk Motor DC dengan Monitoring Simulink Matlab Anggrila, Bunga; Krismadinata; Astrid, Erita
MSI Transaction on Education Vol 5 No 4 (2024): MSI Transaction on Education
Publisher : Minangkabau Scholar Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46574/mted.v5i4.153

Pada awal abad ke-20, ilmu pengetahuan dan teknologi berkembang pesat, terutama dalam teknologi informasi dan otomatisasi produksi. Mesin industri mulai dikendalikan oleh sistem otomatisasi seperti PLC dan komputer. Salah satu implementasi teknologi otomatisasi ini adalah mesin listrik, khususnya mesin arus searah (DC). Salah satu mesin arus searah yang paling sering digunakan diindustri adalah motor arus searah (DC) karena kemampuannya menghasilkan torsi awal besar dan pengendalian putaran yang mudah. Namun, perubahan beban sering menyebabkan kecepatan motor tidak stabil, sehingga diperlukan pengaturan tegangan menggunakan konverter daya seperti DC chopper. DC chopper empat kuadran dipilih karena dapat mengatur kecepatan motor dalam dua arah dan melakukan pengereman. Lalu dpat dimonitoring melalui interface Simulink, yang memungkinkan pengoperasian tanpa saklar langsung dari laptop atau komputer. In the early 20th century, science and technology developed rapidly, especially in information technology and production automation. Industrial machinery began to be controlled by automation systems such as PLCs and computers. One of the implementations of this automation technology is electrical machinery, especially direct current (DC) machines, direct current (DC) motors have become popular in industry due to their ability to produce large starting torque and easy rotation control. However, load changes often cause unstable motor speed, so voltage regulation using a power converter such as a DC chopper is required. The four-quadrant DC chopper was chosen because it can adjust the motor speed in two directions and perform braking. It can then be monitored through a Simulink interface, which allows switchless operation directly from a laptop or computer.

Pengaruh Integrasi Pembangkit Fotovoltaik (PV) terhadap Alokasi Kapasitor yang Optimal pada Jaringan Distribusi Energi Listrik Astrid, Erita; Dani Solihin, Muhammad; Siregar, Rosma; Suryanto, Eka Dodi
Jurnal Pendidikan Teknik Elektro Vol 5 No 2 (2024): Jurnal Pendidikan Teknik Elektro
Publisher : Jurusan Teknik Elektro Fakultas Teknik Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jpte.v5i2.545

Recent advances in renewable energy as well as changes in infrastructure and government regulations have driven the increasing use of distributed solar/photovoltaic power generation (PV) in the electricity distribution network. The integration of PV as one of the active power supply sources if not accompanied by reactive power compensation will cause increased power losses in the system and increase the risk of voltage instability. Therefore, along with the intensive use of PV, planning the allocation of capacitors as reactive power compensators is very necessary. This work examines the optimization of capacitor allocation and sizing by the Genetic Algorithm (GA) method, accounting for the uncertainties in photovoltaic output fluctuations. he emergence of uncertainty parameters in the problem formulation makes the analysis of power flow in the system must be carried out with a probabilistic technique. The outcomes of the power flow analysis, specifically the power losses within the system, will serve as the objective function for the optimization process where the purpose of this optimization is to minimize the resulting power losses. The proposed optimization is simulated on the IEEE 34 bus radial distribution system using Matlab. The results showed a reduction in losses of 53.18%, especially from 219.2 kW to 160 kW. In addition, this optimization scheme also identified suitable locations for installing capacitors, namely on buses 7, 8, 12, 21, 25, and 31.

Peningkatan Kinerja Sistem Photovoltaic Dengan Mengaplikasikan Algoritma Incremental Conductance Yang Ditingkatkan Putri, Yuni Andriva; Asnil; Astrid, Erita
MSI Transaction on Education Vol 6 No 1 (2025): MSI Transaction on Education
Publisher : Minangkabau Scholar Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar

Penelitian ini bertujuan untuk mengevaluasi kinerja algoritma MPPT dengan metode P&O konvensional dan modifikasi pada sistem photovoltaic. Pengujian dilakukan dengan variasi iradiasi 200-600 W/m². Hasil menunjukkan metode P&O modifikasi mengurangi osilasi dan meningkatkan waktu pelacakan. Pada iradiasi 600 W/m², metode modifikasi mencapai MPP dalam 325 ms dengan daya 9.85 W, sedangkan konvensional memerlukan 345 ms dengan daya 8.775 W. Peningkatan iradiasi berbanding lurus dengan daya output dan berbanding terbalik dengan waktu pelacakan MPP. Penelitian ini membuktikan efektivitas metode P&O modifikasi dalam meningkatkan efisiensi dan stabilitas sistem MPPT pada aplikasi photovoltaic. This study evaluates the performance of Maximum Power Point Tracking (MPPT) algorithms using conventional and modified Perturb and Observe (P&O) methods in photovoltaic systems. Tests were conducted across irradiance levels of 200-600 W/m². Results demonstrate that the modified P&O method significantly reduces oscillations and improves convergence speed compared to the conventional approach. At 600 W/m² irradiance, the modified method achieves MPP in 325 ms with 9.85 W power output, while the conventional method requires 345 ms, producing 8.775 W. Increased irradiance correlates positively with power output and negatively with MPP tracking time. This research validates the effectiveness of the modified P&O method in enhancing efficiency and stability of MPPT systems in photovoltaic applications.

Analisis Rekonfigurasi Jaringan Menggunakan Particle Swarm Optimization untuk Meningkatkan Voltage Stability Index Simamora, Yoakim; Astrid, Erita; Immanuel, Michael Fritz; Waluyo, Bakti Dwi; Sembiring, Muhammad Aulia Rahman; Dewy, Mega Silfia; Silitonga, Agnes Irene; Ginting, Lisa Melvi
ELECTRON Jurnal Ilmiah Teknik Elektro Vol 6 No 1: Jurnal Electron, Mei 2025
Publisher : Jurusan Teknik Elektro Fakultas Teknik Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/electron.v6i1.330

The distribution system is a part of the power system that distributes electrical energy from the transmission network to medium and low voltage consumers, such as households, industrial consumers, and other facilities. Network reconfiguration is the process of restructuring and configuring the network by opening and closing switches to obtain the most optimal network configuration. In this study, the determination of switch opening and closing uses the binary particle swarm optimization (BPSO) algorithm, whose basic principle in finding optimal values is based on the social behavior of birds flocking or fish swimming together.. To measure voltage stability, this research presents the Voltage Stability Index (VSI), improving voltage stability using network reconfiguration with the BPSO algorithm. In this study, the VSI value will be compared with other algorithms, including the PSO algorithm from previous research, the Cuckoo Search Algorithm (CSA), the Harmony Search Algorithm (HSA), and the Modified Whale Optimization Algorithm (MWOA). The simulation results show that the BPSO algorithm can reduce power loss from an initial value of 202.7 kW to 139.3 kW, a decrease of 31.28%. Compared to other algorithms, BPSO has the best percentage reduction in power loss. The simulation results also show that the VSI value improved from an initial value of 0.2112 to 0.1520, an increase of 28%. In improving the VSI value in the IEEE 33 bus distribution system, the BPSO algorithm became the best algorithm for enhancing the VSI value.

PENERAPAN PROGRAMMABLE MODUL VAR KOMPENSATOR BERBASIS ESP32 PADA PEMBELAJARAN STABILITAS DAYA Hutajulu, Olnes Y; Mendoza, Mhd Dominique; Astrid, Erita; Sinaga, Denny H
Jurnal Teknologi Pendidikan (JTP) Vol. 17 No. 2 (2024): Oktober - Jurnal Teknologi Pendidikan
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jtp.v17i2.65189

Abstrak: Pembelajaran stabilitas daya merupakan aspek penting dalam pendidikan teknik elektro, namun pemahaman mahasiswa seringkali terbatas karena kurangnya media interaktif yang mendukung pembelajaran praktis. Penelitian ini bertujuan untuk menerapkan programmable modul Var Kompensator berbasis ESP32 sebagai alat bantu pembelajaran yang interaktif dan aplikatif dalam topik stabilitas daya. Modul ini dirancang agar mahasiswa dapat melakukan kontrol dan pengaturan parameter daya secara real-time, sekaligus memonitor data tegangan, arus, dan stabilitas daya dalam berbagai kondisi beban. Penelitian ini melibatkan dua kelompok mahasiswa, yaitu kelompok eksperimen yang menggunakan modul ESP32 dan kelompok pembanding yang menggunakan perangkat lunak simulasi. Hasil pengujian menunjukkan bahwa nilai post-test kelompok eksperimen secara signifikan lebih tinggi dibandingkan kelompok pembanding, dengan nilai t-hitung sebesar 6.435 (p < 0.05), yang menunjukkan efektivitas modul dalam meningkatkan pemahaman konsep stabilitas daya. Selain itu, modul ESP32 terbukti meningkatkan keterampilan praktis mahasiswa dalam merancang dan mengelola rangkaian daya listrik. Temuan ini konsisten dengan penelitian sebelumnya yang menyatakan bahwa penggunaan microcontroller ESP32 dapat meningkatkan interaksi dan motivasi belajar mahasiswa. Secara keseluruhan, penelitian ini menunjukkan bahwa modul Var Kompensator berbasis ESP32 efektif dalam mendukung pembelajaran stabilitas daya dan dapat menjadi alternatif media pembelajaran interaktif untuk meningkatkan kompetensi mahasiswa di bidang teknik elektro. Kata Kunci: ESP32, Kendali Stabilitas Daya, Modul Pembelajaran, Pembelajaran Interaktif, Var Kompensator Abstract: Power stability learning is an essential aspect of electrical engineering education, yet students often face challenges in comprehension due to the lack of interactive media that supports practical learning. This study aims to apply an ESP32-based programmable Var Compensator module as an interactive and applicative learning aid in power stability topics. The module is designed to allow students to control and adjust power parameters in real-time, while also monitoring voltage, current, and power stability data under various load conditions. This study involved two groups of students: an experimental group using the ESP32 module and a comparison group using simulation software. The test results indicate that the post-test scores of the experimental group were significantly higher than those of the comparison group, with a t-score of 6.435 (p < 0.05), demonstrating the module's effectiveness in enhancing conceptual understanding of power stability. In addition, the ESP32 module proved to improve students' practical skills in designing and managing electrical power circuits. These findings align with previous research, which states that using ESP32 microcontrollers can increase student interaction and motivation. Overall, this study shows that the ESP32-based Var Compensator module is effective in supporting power stability learning and can serve as an alternative interactive learning medium to improve student competence in electrical engineering. Keywords: ESP32, Interactive Learning, Learning Module, Power Stability Control, Var Compensator

ANALISIS KEBUTUHAN PENGEMBANGAN MODUL SISTEM KENDALI OTOMATIS UNTUK MENDUKUNG PROJECT BASED LEARNING Suryanto, Eka Dodi; Astrid, Erita; Harahap, Muchsin; Purba, Sukarman
JURNAL TEKNOLOGI INFORMASI & KOMUNIKASI DALAM PENDIDIKAN Vol. 11 No. 1 (2024): Juni - Jurnal Teknologi Informasi dan Komunikasi dalam Pendidikan
Publisher : Pascasarjana Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jtikp.v11i1.60287

Abstrak: Revolusi Industri 4.0 mengharuskan dunia industri untuk memanfaatkan teknologi otomatis pada proses produksi agar bekerja secara efektif dan efisien. Berdasarkan kebutuhan tersebut, maka para lulusan sarjana teknik elektro harus memiliki kompetensi dibidang kendali otomatis agar dapat memenuhi kebutuhan sumber daya manusia di dunia industri saat ini. Dasar Sistem Kendali merupakan salah satu mata kuliah wajib yang harus diselesaikan mahasiswa program studi Teknik Elektro di Universitas Negeri Medan. Berdasarkan pengamatan yang dilakukan, mahasiswa masih kurang memahami tentang implementasi teori sistem kendali dalam dunia industri. Analisis kebutuhan dilakukan untuk mengetahui capaian pembelajaran mata kuliah, kompetensi mahasiswa, dan kebutuhan bahan ajar yang relevan dengan industri. Hasil analisis kebutuhan menunjukkan bahwa capaian pembelajaran belum merujuk pada kebutuhan industri, kompetensi mahasiswa belum memenuhi kebutuhan industri secara praktis dan bahan ajar yang belum sesuai dengan kebutuhan industri. Berdasarkan hasil analisis kebutuhan, rekomendasi yang dapat diberikan adalah pengembangan modul pembelajaran sistem kendali otomatis yang mendukung pembelajaran berbasis proyek.Kata Kunci: Analisis Kebutuhan, Pengembangan Modul, Kendali, Otomatis, SMK Imelda, Pembelajaran Berbasis Proyek. Abstract. Industrial Revolution 4.0 requires industry to utilize automated technology in production processes to work effectively and efficiently. Based on these needs, electrical engineering graduates must have competence in the field of automatic control in order to meet human resource needs in today's industrial world. Basics of Control Systems is one of the mandatory courses that students in the Electrical Engineering study program at Medan State University must complete. Based on observations made, students still do not understand the implementation of control system theory in the industrial world. A needs analysis is carried out to determine course learning outcomes, student competencies, and the need for teaching materials that are relevant to industry. The results of the needs analysis show that learning outcomes do not yet refer to industry needs, student competencies do not practically meet industry needs and teaching materials do not meet industry needs. Based on the results of the needs analysis, the recommendation that can be given is the development of an automatic control system learning module that supports Project Based LearningKeywords: Need Analysis, Module Development, Control, Automatic, Project Based Learning

Passive Filter Design To Reduce Electrical Disturbances In The Manufacturing Industry Solihin, Muhammad Dani; Astrid, Erita; Harahap, Muchsin; Affandi, Marwan; Isnaini, Muhammad
Jurnal Teknik Elektro Indonesia Vol 6 No 2 (2025): JTEIN: Jurnal Teknik Elektro Indonesia
Publisher : Departemen Teknik Elektro Fakultas Teknik Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jtein.v6i2.787

Industry is one of the economic sectors that plays a role in processing environmental resources into products with higher utility values. This process includes design activities, industrial engineering, and service provision. Matra Abadi Workshop, a manufacturing industry that in its operations produces harmonic currents in the electric power system network, especially in low-order harmonics such as 3rd, 5th, 7th, 9th, and 11th. To reduce the negative impact of harmonics on the power system, the use of passive harmonic filters is required. Among the types of filters used, single tuned filters are a common choice because of their simple construction and effectiveness in reducing certain order harmonics that exceed the IEEE 512–2014 standard limits. This study discusses the implementation of both types of filters in a manufacturing industry environment. The harmonic reduction process is carried out through filter design and testing using Matlab/Simulink software-based simulations. The simulation results show that after the application of passive filters, the harmonic current levels in all load configurations were successfully suppressed to within the IEEE 512–2014 standard limits. The reduction in Total Harmonic Distortion (THDi) after the application of the single tuned filter was recorded in the range of 17.86% to 11.06%. In addition, there was an increase in the power factor from 0.68 before the filter was installed to 0.91 after the installation, which indicates an improvement in the overall power system performance.

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