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Dielektrika : Jurnal Ilmiah Kajian Teori dan Aplikasi Teknik Elektro
Published by Universitas Mataram
ISSN : 20869487     EISSN : 2579650X     DOI : https://doi.org/10.29303/dielektrika
Core Subject : Science, Engineering,
Computer Science & IT Electrical & Electronics Engineering Energy
The Aims and scope of the Dielektrika are Power System, Telecommunication, electronics and computer of informatics, including: Electrical Power Systems, High Voltage Technology, Renewable Energy, Power Electronics, Sensing and Automation, Telecommunication system and technique, Signal Processing, Image Processing, Internet of Things, Artificial Intelligence, Data Science Analytic, Biomedical Engineering.
Arjuna Subject : Teknik (semua kategori) - Teknik Listrik dan Elektro
Articles 229 Documents
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Optimasi Pengukuran Suhu Sensor LM35 Menggunakan Kalman Filter topan, paris ali
DIELEKTRIKA Vol 9 No 2 (2022): DIELEKTRIKA
Publisher : Jurusan Teknik Elektro Fakultas Teknik Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/dielektrika.v9i2.311

Abstract

Ketepatan nilai dari hasil pembacaan sensor sangatlah berpengaruh terhadap proses-proses dalam suatu sistem industri. Namun pada kenyataannya sensor-sensor yang ada, sering memberikan nilai - nilai yang kurang tepat karena diakibatkan oleh gangguan - ganguan luar yang mempengaruhi ketepatan pembacaan sensor. Salah satu cara untuk memastikan nilai pembacaan sensor tetap akurat yaitu menggunakan kalman filter. Pada penelitian ini suatu library kalman filter dibangun, kemudian diimplementasikan pada Arduino board dengan contoh kasus yaitu estimasi data suhu menggunakan sensor suhu LM35. Hasilnya dari kasus tersebut menunjukkan bahwa hasil estimasi Kalman Filter memperlihatkan nilai yang stabil dengan nilai varian terhadap nilai rata-rata pengukuran sebesar 0.001535763 jika dibandingkan dengan hasil pengukuran tanpa menggunakan Kalman Filter yang varian datanya bernilai 0.032936834
ANFIS-based MPPT Controller Design on Boost Converter to Improve Photovoltaic System Performance Nrartha, I Made Ari; Alfian, Muhammad Rolan; Zubaidah, Teti
DIELEKTRIKA Vol 9 No 2 (2022): DIELEKTRIKA
Publisher : Jurusan Teknik Elektro Fakultas Teknik Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/dielektrika.v9i2.310

Abstract

The efficiency of the photovoltaic system is very low ranging from 9-17% in areas with low irradiation while the investment costs are quite high. In addition, the power output of the photovoltaic system is highly volatile due to changes in irradiation due to weather and cloud movement, and temperature change. This research proposes the MPPT method based on ANFIS in the photovoltaic system for transient behavior analysis and system efficiency improvement. The results of the proposed method were compared with the MPPT Perthub & Observe (P&O) method. Each MPPT method was applied to a boost converter connected to a photovoltaic module with a capacity of 150 Wp to adjust the duty cycle using Simulink simulation in MATLAB. The irradiation and temperature data for 3 consecutive days were from Saturday to Monday, September 4 to 6, 2021. The simulation results show that the transient time of ANFIS MPPT is 6.23 times faster than that of P&O MPPT. The efficiency of ANFIS-based MPPT is higher than MPPT P&O. At 917.3 W/m2 of irradiation, the output power of the boost converters are 132.09, and 111.69 Watt for the ANFIS-based MPPT controller, and the P&O method MPPT, respectively.
MONITORING SYSTEM DESIGN FOR OFF-GRID SOLAR POWER PLANT BASED ON INTERNET OF THINGS Nrartha, I Made Ari; Wikapti, Ida Ayu Nyoman Iswari; Muljono, Agung Budi
DIELEKTRIKA Vol 10 No 1 (2023): DIELEKTRIKA
Publisher : Jurusan Teknik Elektro Fakultas Teknik Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/dielektrika.v10i1.327

Abstract

Solar energy can be converted to electrical energy directly using photovoltaic (PV) modules. The output of electrical energy from the PV module is affected by the intensity of solar radiation and temperature. This study aims to monitor the output power of a solar power plant against changes in solar irradiation and temperature based on the Internet of Things (IoT). Off-grid solar power plants consist of PV modules, solar charge controllers, and batteries. The variables measured are output power, irradiation, module temperature, environment temperature, battery charge and discharge current, and voltage of system. All measurement results are sent via the internet to the ThingSpeak web server to be stored and displayed on a computer or android device connected to the internet. This monitoring system can monitor the real-time conditions of off-grid solar power plants. Monitoring results on 25 October 2022 showed the highest energy was 128 Watt hours with an efficiency of 16.06%.
ELECTRIC VEHICLE (EV) POWER CONSUMPTION (BATTERY) ON UPHILL ROAD CONDITIONS Suksmadana, I Made Budi; Satiawan, I Nyoman Wahyu; Wiryajati, I Ketut; Warindi, Warindi; Supriyatna, Supriyatna; Supriono, Supriono; Citarsa, Ida Bagus Fery
DIELEKTRIKA Vol 10 No 1 (2023): DIELEKTRIKA
Publisher : Jurusan Teknik Elektro Fakultas Teknik Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/dielektrika.v10i1.325

Abstract

Electrical Vehicle (EV) has been developing since the mid-18th century and reached its peak at the end of the 18th century. Dwindling fuel reserves and environmental damage caused by exhaust emissions from millions of fossil-fuel vehicles are the driving factors for the development of electric cars, technological developments in the battery sector have also contributed to the development of electric cars. One of the important components in an electric car is the battery which will provide resources to the system, so determining the capacity and knowing the performance of the battery used is very important. To find out the battery performance, the model can be made using MATLAB/SIMULINK. The model built consists of electric (DC motor, control and battery) and mechanical (transmission, wheels, brakes and body) parts. Of the models made for speeds of 35, 40, and 45 kmph on level ground, the distances that can be covered are 2,292, 2,597, and 2,899 m, while the remaining battery capacity (SoC, %) is 92.93%, 91.16%, and 89.17%. This is proportional to the distance traveled which also proves that the model made is appropriate. Uphill roads affect the use of battery capacity, the greater the angle of incline, the greater the battery capacity used.
ANALISIS EKONOMIS PEMBANGKIT LISTRIK TENAGA SURYA ON-GRID 10 kWp DI UNIVERSITAS AL-AZHAR MATARAM Hadianto, Virgian Puji; Adnyani, Ida Ayu Sri; Natsir, Abdul; Putra, I Ketut Perdana
DIELEKTRIKA Vol 10 No 1 (2023): DIELEKTRIKA
Publisher : Jurusan Teknik Elektro Fakultas Teknik Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/dielektrika.v10i1.331

Abstract

Pembangkit Listrik Tenaga Surya (PLTS) adalah suatu pembangkit yang mengkonversikan energi foton dari surya menjadi energi listrik. PLTS terbagi menjadi Off-Grid dan On-Grid. Salah satunya penggunaan PLTS sistem On-Grid berkapasitas 10 kWp tanpa baterai di Universitas Al-Azhar Mataram. Universitas Al-Azhar Mataram berencana menambah kapasitas PLTS menjadi 20 kWp. Oleh karena adanya penambahan kapasitas PLTS maka perlu dianalisis lebih lanjut secara ekonomis dengan simulasi HOMER. HOMER berfungsi mencari konfigurasi sistem yang paling ekonomis berdasarkan nilai Net Present Cost, Cost Of Energy, total produksi energi, dan Renewable Penetration. Berdasarkan nilai tersebut didapatkan hasil konfigurasi sistem paling ekonomis dengan sistem PLTS On-Grid 20 kWp tanpa baterai. Diperoleh hasil Net Present Cost dan Cost Of Energy terendah dengan nilai sebesar Rp. 3.260.109.732,09 dan Rp 1.329,21 /kWh. Nilai total produksi energi dan Renewable Penetration tertinggi sebesar 194.047 kWh/tahun dan 11,8 %.
ANALISA ALIRAN BEBAN DALAM RANGKA PERSIAPAN INTERKONEKSI SISTEM PLTMH DI DURIAN TIBARAU PASAMAN BARAT Cahayahati, Cahayahati
DIELEKTRIKA Vol 10 No 1 (2023): DIELEKTRIKA
Publisher : Jurusan Teknik Elektro Fakultas Teknik Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/dielektrika.v10i1.320

Abstract

In Durian Tibarau, West Pasaman, there are 6 Micro Hydro Power Plants (MHPP) with a total installed capacity of 234.5 kVA or 187.6 kW, 3 Phase, 400 V, 50 Hz. The 6 MHPP are adjacent to each operating location. For this reason, it is necessary to analyze the interconnection load flow of the MHPP system, to see the initial conditions of the voltage state, load flow and power losses. The formulation of the load flow equation is based on the power system of 6 MHPP buses, 6 load buses and 12 line, 400 Volt voltage. Completion of load flow analysis using the Adaptive Newton Raphson method with an iteration process and application of the Electrical Transient Analysis Program (ETAP) 12.6. The results of the load flow research show that the bus that is close to the generator is at nominal voltage while the bus that is far from the generator has a voltage drop. The biggest line power losses occur in the difference in bus voltage values ​​from the sending side bus to the receiving side bus. The total power generated by MHPP is equal to the total consumer load plus the total line power losses. Abstrak Di Durian Tibarau, Pasaman Barat ada 6 unit Pembangkit Listrik Tenaga Mikro Hidro (PLTMH) dengan total kapasitas terpasang 234,5 kVA atau 187,6 kW, 3 Phasa 400 V 50 Hz. Ke 6 unit PLTMH tersebut berdekatan letaknya beroperasi masing-masing. Untuk itu perlu dilakukan analisa aliran beban interkoneksi sistem PLTMH, untuk melihat kondisi awal keadaan tegangan, aliran beban dan rugi-rugi daya. Rumusan persamaan aliran beban berdasarkan sistem tenaga 6 bus PLTMH, 6 bus beban dan 12 saluran tegangan 400 Volt. Penyelesaian analisa aliran beban menggunakan metoda Adaptive Newton Raphson dengan proses iterasi dan aplikasi Electrical Transien Analisys Program (ETAP) 12.6. Hasil penelitian aliran beban menunjukan bahwa bus yang dekat dengan pembangkit berada pada tegangan nominal sedangkan bus yang jauh dari pembangkit turun tegangannya. Hasil rugi-rugi beban saluran terbesar terjadi pada perbedaan nilai tegangan bus dari bus sisi kirim ke bus sisi terima. Total daya dibangkitkan PLTMH sama dengan total beban konsumen ditambah dengan total rugi-rugi daya saluran.
ALAT PENGUSIR HAMA BURUNG PADA TANAMAN PADI MENGGUNAKAN PROTEKSI GANDA DENGAN MEMANFAATKAN SINAR MATAHARI SEBAGAI SUMBER ENERGI LISTRIK Andriani, Titi; Bahri, Syamsul; Satriawansyah, Arjuna
DIELEKTRIKA Vol 10 No 1 (2023): DIELEKTRIKA
Publisher : Jurusan Teknik Elektro Fakultas Teknik Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/dielektrika.v10i1.323

Abstract

Terdapat permasalahan yang sering dialami oleh petani ketika menjelang panen padi yaitu adanya hama burung. Burung biasanya memakan biji-biji padi yang menyebabkan hasil panen berkurang. Umumnya petani menggunakan cara tradisional untuk mengusir hama tersebut yaitu dengan membentangkan benang atau membuat kentongan dari kaleng bekas. Cara tradisional tersebut kurang efektif dikarenakan jangkauan suara yang dihasilkan terbatas, juga membutuhkan waktu dan tenaga para petani. Alat pengusir hama padi ini adalah alat yang menimbulkan gelombang ultrasonic dengan frekuensi 2,5 – 60 kHz yang dapat diatur sesuai dengan frekuensi pendengaran burung pemakan padi. Selain itu juga dapat membangkitkan suara burung elang yang merupakan predator alami bagi burung. Catu daya diperoleh dari energi panas matahari melalui panel surya. Aktivitas kendali alat dilakukan secara otomatis berbasis microcontroller ATMEGA 328P dan Integrated Circuit Real Time Clock sehingga pengguna dapat menentukan rentang waktu penggunaan alat. Alat pengusir padi ini telah diuji di area persawahan masyarakat di Desa Pernek Kecamatan Moyo Hulu, Sumbawa.
WEBSITE INTERFACE MONITORING CLIENT ACTIVITIES USING MIKROTIK ON UBUNTU SERVER 18.04 LTS Akbar, Lalu A. Syamsul Irfan; Putra, Rayasa Puringgar Prasadha; Ariessaputra, Suthami
DIELEKTRIKA Vol 10 No 1 (2023): DIELEKTRIKA
Publisher : Jurusan Teknik Elektro Fakultas Teknik Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/dielektrika.v10i1.332

Abstract

Internet network is beneficial to be able to support the needs of the learning process. However, a large number of internet users, for example, who access university data, can cause weaknesses in a system, making it very vulnerable to data theft, damage, and leakage of confidential documents. The obstacle faced is that the internet is getting slower due to many users using the internet network and not knowing the amount of bandwidth usage. A system is needed to determine the bandwidth usage for each client. This system To simplify the process of monitoring the internet network. It can view client browsing history and block website domains so that internet users in the world of education have positive characteristics and the internet is not slow. In this system, the admin will monitor the use of internet clients connected to the campus environment through the user name and password obtained for each student. The results of this research are the creation of an internet monitoring system for a proxy to monitor the maximum amount of bandwidth usage for each client, view the client's browsing history, and block website domains and client IPs. The admin can observe the internet network and monitor client activity that uses the internet network in the campus environment using the monitoring application.
ANALISIS STATISTIK LEVEL DAYA SINYAL PROVIDER TELKOMSEL DAN XL DI JURUSAN TEKNIK ELEKTRO UNIVERSITAS MATARAM MENGGUNAKAN METODE WALK TEST Nurrahman, Winaldi; Zainuddin, Abdullah; yadnya, made sutha
DIELEKTRIKA Vol 10 No 1 (2023): DIELEKTRIKA
Publisher : Jurusan Teknik Elektro Fakultas Teknik Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/dielektrika.v10i1.326

Abstract

Testing the signal power level is an important element to determine the classification of the signal power level in the measurement area by taking into account the standard signal reception parameters from the provider used. In this study, the signal power level was measured for indoor and outdoor conditions for Telkomsel and XL providers, as well as a statistical analysis of the results of path loss measurements at a working frequency of 2.1 GHz. This study aims to determine a good location for accessing the internet based on the results of measuring the signal power level value, so that from the signal power level mapping results obtained, the indoor provider XL condition value with the normal location category has an average signal power level of -90 dBm and the XL provider outdoor condition with the good category has an average power level of -80 dBm. In indoor conditions, Telkomsel providers are in the medium category with an average signal power level of -90 dBm, and in outdoor locations, Telkomsel providers are in the good, medium, and bad categories with power level values of -110 to -80.
RANCANG BANGUN PERILAKU BUATAN PADA NON-PLAYER CHARACTER DALAM GAME PEMADAM KEBAKARAN MENGGUNAKAN FINITE STATE MACHINE DAN GODOT SCRIPT Wiriasto, Giri Wahyu; Fikriansyah, Muhammad; Rachman, A. Sjamsjiar
DIELEKTRIKA Vol 10 No 1 (2023): DIELEKTRIKA
Publisher : Jurusan Teknik Elektro Fakultas Teknik Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/dielektrika.v10i1.329

Abstract

The application of artificial behavior in the object character of a game that is played using a computer device continues to grow. The implementation of the algorithm in the game makes game object characters that can move autonomously according to changes in scenario roles making the game more attractive to human players. This autonomous computer player behavior is known as a non-player character (NPC). In this research a game has been developed in the category of role-playing game (RPG) which is called the Fire Extinguisher Game. In this game there is an NPC character "fire monster" as an antagonist whose mission is to defeat the human player as the protagonist by burning all the objects in the scene role scenario. In order to make it clear and to make it easier to develop NPC player behavior designs, the Finite State Machine (FSM) method and godot script programming are used. The FSM method describes the behavior design of each NPC character in the form of states, where these will change according to the interactions that occur between players in the scene of the game environment. In its implementation, there are test parameters that are used, so that it can be shown that this game has successfully played. This game runs on a desktop and has tested using the black-box testing method to get a functional performance test. The results of this research are the design of artificial behavioral events on NPCs using the godot script code approach.

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