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All Journal PROSIDING SEMINAR NASIONAL MEDIA ELEKTRIKA Majalah Ilmiah MOMENTUM Conference SENATIK STT Adisutjipto Yogyakarta Elektrika RESISTOR (Elektronika Kendali Telekomunikasi Tenaga Listrik Komputer) Aviation Electronics, Information Technology, Telecommunications, Electricals, Controls (AVITEC) Journal of Robotics and Control (JRC) Indonesian Community Journal Jurnal Riset Rumpun Ilmu Teknik (JURRITEK) Kohesi: Jurnal Sains dan Teknologi Green Engineering: Journal of Engineering and Applied Science
Agus Adhi Nugroho
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Aerospace Engineering Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Other

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STUDI EVALUASI SISTEM PENERANGAN UNTUK KENYAMANAN DAN EFISIENSI PADA RUANG FISIOTERAPI Aulia, Riska Dwi; Nugroho, Agus Adhi
Kohesi: Jurnal Sains dan Teknologi Vol. 7 No. 4 (2025): Kohesi: Jurnal Sains dan Teknologi
Publisher : CV SWA Anugerah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.3785/kohesi.v7i4.11721

Abstract

Sistem penerangan adalah faktor penting dalam merancang sebuah ruangan terutama pada ruang fisioterapi untuk mendukung kegiatan terapi. Penelitian ini menganalisis hasil pencahayaan pada Ruangan Fisioterapi Rumah Sakit Panti Wilasa Citarum Semarang pada kondisi eksisting dengan lampu 14 watt dan nilai lumen 1600 lm. Hasil menunjukkan dibawah standar sehingga tidak sesuai dengan Peraturan Menteri Kesehatan Republik Indonesia Nomor 40 Tahun 2022 baik secara perhitungan maupun pengukuran langsung menggunakan alat ukur lingkungan. Dilakukan perhitungan ulang dan di simulasikan pada software DIALux untuk rekomendasi perbaikan. Melalui simulasi perbaikan dengan mengganti jenis lampu, menyesuaikan daya, serta nilai lumen, ditemukan bahwa pencahayaan dapat ditingkatkan hingga mencapai standar yang sesuai. Hal ini menunjukkan bahwa perencanaan pencahayaan yang baik sangat penting untuk menciptakan lingkungan yang nyaman dan mendukung efektivitas terapi.
Pelatihan Pemrograman Mikrokontroler bagi Siswa Madrasah Aliyah Negeri 1 Kota Semarang Arifin, Bustanul; Nugroho, Agus Adhi
I-Com: Indonesian Community Journal Vol 5 No 2 (2025): I-Com: Indonesian Community Journal (Juni 2025)
Publisher : Fakultas Sains Dan Teknologi, Universitas Raden Rahmat Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/i-com.v5i2.7199

Abstract

Kegiatan pelatihan pemrograman mikrokontroler dan robotika di Madrasah Aliyah Negeri (MAN) 1 Kota Semarang ini merupakan salah satu solusi yang diberikan untuk menjawab permasalahan kebutuhan ketrampilan siswa yang berminat dalam tim robotik. Kegiatan pelatihan dimulai dengan survei lapangan ke komunitas madrasah tersebut. Hasil diskusi awal ini kemudian disepakati bahwa perlu diadakan pelatihan pemrograman mikrokontroler dan robotik   dalam   rangka   peningkatan kemampuan dan ketrampilan terutama siswa kelas X. Langkah selanjutnya adalah persiapan pelatihan pemrograman mikrokontroler dan robotik. Disepakati bahwasanya pelatihan diberikan dalam bentuk presentasi dan praktek langsung. Kegiatan ketiga adalah pelaksanaan pelatihan mikrokontroler dan robotik. Kegiatan keempat adalah evaluasi kegiatan pelatihan dengan tujuan untuk melakukan evaluasi kegiatan yang sudah dilakukan. Evaluasi ini untuk memperoleh saran dan masukan untuk perbaikan kedepannya. Berdasarkan kegiatan pelatihan ini pelatihan ini sangat penting untuk menumbuhkembangkan kemampuan tim robotik yang sudah terbentuk.
Application of Dragonfly Algorithm for Economic Scheduling Optimization and Power Plant Emissions Novita Popi Wulandari; Agus Adhi Nugroho; Eka Nuryanto Budisusila
JURNAL RISET RUMPUN ILMU TEKNIK Vol. 4 No. 1 (2025): April : Jurnal Riset Rumpun Ilmu Teknik
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v4i1.5266

Abstract

A reliable electrical grid the power plant scheduling system needs to optimize the plant's performance by considering the economic value and the value of emissions generated by the plant, in addition to the reliability and economic sectors. This system should also take into account the environmental impact, as well as the CO2 and CH4 emissions produced by the plant. This research will use the Dragonfly Algorithm with weighting parameters to schedule hydro and thermal facilities' emissions and economic activities. That the weighting value impacts production costs and emissions is demonstrated by the data acquired from the Dragonfly Algorithm simulation. If economic considerations take precedence in assigning weights, then low-cost generating will result in high-value emissions, and vice versa. The plant's Emission Intensity rating also meets the standards established by the government.
Audit Energi Berbasis Hasil Pengukuran dan Monitoring Konsumsi Energi Listrik di Pollux Malls Paragon Kota Semarang Dinara Alya Yuditha; Agus Adhi Nugroho
JURNAL RISET RUMPUN ILMU TEKNIK Vol. 4 No. 3 (2025): Desember : Jurnal Riset Rumpun Ilmu Teknik
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v4i3.6885

Abstract

Energy audits are an essential step in supporting the efficiency of electricity utilization, particularly in large-scale commercial buildings such as shopping malls. This study was conducted to measure and analyze electricity consumption at Pollux Malls Paragon Semarang using a direct measurement approach combined with historical monitoring of energy consumption. The main focus of the audit was on the lighting system and the Heating, Ventilation, and Air Conditioning (HVAC) system from the Basement to the 6th Floor. Measurement results showed that the Energy Consumption Intensity (ECI) ranged between 39.94–45.20 kWh/m²/month, far above the national efficiency standard (maximum 18.5 kWh/m²/month), indicating a highly wasteful energy usage condition. The two main systems contributing to the largest share of consumption were HVAC and lighting, with a combined estimated share exceeding 60% of the total monthly energy use. Based on the analysis, several energy-saving opportunities were identified, including the replacement of energy-efficient lighting (LED), installation of automatic control systems (light, temperature, and timer sensors), and regular maintenance of HVAC systems. With the implementation of technical, managerial, and operational efficiency strategies, it is estimated that energy consumption savings could reach 20–30%, or around 60,000 kWh per month, without compromising visitor comfort.
Analisis Pembebanan Trafo Distribusi 200 kVA 20 kV/400 V Wilayah Ronggowarsito dari Penyulang 5 Tambak Lorok Milik PT. PLN (Persero) UP 3 Semarang Iftiar, Yuda; Widihastuti, Ida; Nugroho, Agus Adhi
Aviation Electronics, Information Technology, Telecommunications, Electricals, and Controls (AVITEC) Vol 6, No 2 (2024): August
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/avitec.v6i2.2144

Abstract

Pertumbuhan konsumsi energi listrik mengakibatkan beban pada transformator mengalami peningkatan dan memungkinkan terjadinya kelebihan beban, ketidakseimbangan beban serta potensi rugi daya. Hal ini bisa mengakibatkan kerusakan pada trafo akibat panas yang berlebih, menimbulkan arus netral, mengurangi umur serta keandalan trafo. Agar transformator tetap berfungsi dengan baik, PLN menetapkan standar beban transformator distribusi tidak boleh melebihi 80%. Tujuan penelitian ini untuk mengukur pembebanan transformator distribusi TBL05-34 200 kVA di Ronggowarsito dan menganalisis karakteristik ketidakseimbangan beban yang menimbulkan potensi kerugian daya. Penelitian dimulai dengan mengumpulkan data arus, tegangan, resistansi netral, serta fluktuasi beban subjek trafo di PT. PLN UP3 Semarang. Selanjutnya dilakukan perhitungan pembebanan transformator, ketidakseimbangan beban, dan kerugian daya pada transformator TBL05-34. Hasilnya menunjukkan ketidakseimbangan beban 7,22% saat siang dan 5,59% saat malam. Hal ini masih dikategorikan baik sesuai standar IEEE std 446-1995 berkisar 5% - 20%. Kerugian daya disebabkan arus mengalir melalui netral transformator saat siang 0,877 kW dengan 0,5%, sedangkan malam hari 0,564 kW dengan 0,3%. Pembebanan transformator saat siang masih normal 56,68%, sedangkan malam hari 81,87% merupakan posisi siaga.
Analisa Koordinasi Setting Proteksi Over Current Relay (OCR) Outgoing 20 kV dan Recloser pada Trafo II 60 MVA Feeder RBG 01 di Gardu Induk 150 kV Rembang Safitri, Indri; Gunawan, Gunawan; Nugroho, Agus Adhi
Elektrika Vol. 12 No. 1 (2020): April 2020
Publisher : Universitas Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (753.311 KB) | DOI: 10.26623/elektrika.v12i1.2136

Abstract

According to energy observers from the Institute for Essential Services Reform (IESR) the number of electricity consumers in Indonesia has increased by an average of 6-7% annually followed by an increase in the area of its services. An increasingly broad network is directly proportional to the potential for interference with the transmission and distribution system. The 150 KV Rembang substations is part of the Java-Bali Interconnection electrical system in northern Central Java that supplies electricity to the Rembang and surrounding areas. Rembang 150 KV substation on May 24, 2019, RBG 01 feeder experienced a disturbance behind the RB1-32 recloser and it was recorded that in 2019 PMT it had been tripped 4 times. Besides, there has been a change in equipment in the form of transformer II. These problems indicate the potential for interference that is not anticipated by the protection system, namely Over Current Relay and recloser.  This study evaluates the setting of an outgoing 20 KV OCR protections and recloser on transformer II RBG 01 feeder Rembang 150 KV substation. The scenarios used are calculations with large variations of short-circuit current based on% distance, as well as the calculation of OCR and recloser settings with IEC 60255 standards. Setting currents in the protection equipment is regulated based on current conductivity (KHA) and load current on the recloser. The coordination of the protection settings resulting from this resetting will be compared to the conditions on the ground.  Existing (field) OCR outgoing feeder RBG 01 condition TMS OCR value = 0.228 seconds, Iset = 480 A, and t op = 0.3 seconds. The existing OCR recloser condition TMS OCR value = 0.120 seconds and Iset = 400 A. The results of OCR coordinating outgoing feeder RBG 01 obtained TMS OCR value = 0.135 seconds, Iset = 585 A, and t operation = 0.3 seconds. OCR recloser resetting conditions obtained TMS OCR value = 0.10 seconds, Iset = 240 A and t operation = 0.198 seconds. The resetting conditions have met the IEC 60255 standard because recloser working time is smaller than outgoing work time.
Analisa Optimasi Photovoltaic(PV) 100 W Menggunakan MPPT dengan Alogaritma Perturb dan Observe Setiyawan, Puji; Utomo, Sukarno Budi; Nugroho, Agus Adhi
Elektrika Vol. 13 No. 1 (2021): April 2021
Publisher : Universitas Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26623/elektrika.v13i1.2984

Abstract

This article reviews the optimization of energy generated by solar panels using MPPT. The need for increased power that can be done using MPPT with the P&O algorithm that goes to the load is proven because of the addition of influencing factors.MPPT A technique for keeping solar panels working. to stay within the Maximum Power point (MPP) area. MPP is a pointor point in the VI curve or VP curve in the solar panel where the solar panel works at maximum efficiency and releasesmaximum power. The P&O algorithm is used to keep the MPPT power out panel always in the MPP area by changing thevoltage value before MPPT and after the MPPT Comparison of the results of modeling with the use of techniques developedand special computer programs that have shown satisfactory results. Through comparison of the output power that comes outof the solar panel using MPPT 16.86406 W and without using MPPT of 13.63239 or experiencing an increase of 23%.
Analisa Perbandingan Pengasutan Motor Induksi 3 Fasa Soft Starter IGBT Berbasis Sine-Triangle dan Sine-Sawtooth PWM Menggunakan Matlab Simulink Anwar, Miftakhul Umam Ulil; Nugroho, Dedi; Nugroho, Agus Adhi
Elektrika Vol. 14 No. 2 (2022): October 2022
Publisher : Universitas Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26623/elektrika.v14i2.5200

Abstract

TThe induction motor is the electric drive for industry so special attention is needed for maintainance and control system. Induction motors pulling high starting currents at starting. Various starting methods have been developed to overcome this problem, one of which is the Direct On-Line starting method. This method is the most common method because it is the easiest and cheapest to use, but there is high inrush current arround 6-8 times the nominal current will pulled by induction motor when using this method. This starting current can cause several disturbances, both from the electricity network, damaging the motor and can cause fatal losses to the electric power system.This research discusses the application of the Soft Starter starting method to a 3-phase induction motor to reduce the high starting current pulled by a 3-phase induction motor. The induction motor used in this study is a squirrel cage rotor type with 4kVA power, a rotational speed of 1430 r.p.m, a frequency of 50 Hz, and a voltage of 380 V. The Soft Starter system in this study uses 6 Insulated Gate Bipolar Transistor (IGBT)power electronics switches which are controlled using a sine-triangle PWM and sine - Sawtooth PWM. MATLAB SIMULINK is used to simulate the application of the soft starter starting method on a 3-phase induction motor.The results prove that the Soft Starter method is successful in reducing staring currents when compared to the Direct On-Line method. When using the Direct On-Line method the starting current is 77.29 78.80 A, when using the sine-triangle soft starter method the starting current is 60,46 61,46 A, and when using the sine-sawtooth soft starter method. starting 59,96 60,60 A. However, at steady state conditions, the Direct On-Line rotational speed is better than the Soft Starter because when using the Soft Starter method the voltage is cut. Soft St
Optimalisasi Kinerja Proteksi Recloser Jaringan Distribusi 20kV Penyulang RDT03 Menggunakan Algoritma Particle Swarm Optimization Waritza, Heryogka Ahmad; Gunawan, Gunawan; Nugroho, Agus Adhi
Elektrika Vol. 15 No. 1 (2023): April 2023
Publisher : Universitas Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26623/elektrika.v15i1.5623

Abstract

The reliability of an electric power distribution network system is very important to ensure a good quality of service for consumers. The focus of this study is to find the optimal protection coordination design, topology and operating scheme for RDT03 refiners in the Tambak Aji Industrial Estate. To show the level of reliability and continuity of the electric power distribution network, the SAIFI index (System Average Interruption Frequency Index) and the SAIDI index (System Average Interruption Duration Index) are used. The existing recloser located in section 25 resulted in a SAIFI value of 0.8933 and a SAIDI of 2.407. Using the PSO (Particle Swarm Optimization) optimization method, the results were obtained that the Best Fitness for the most optimal recloser placement was in section 29 with a SAIFI value of 0.32575 and a SAIDI value of 1.0558. This change in recloser placement resulted in a decrease in SAIFI by 36% or by 0.5675 times / year / customer and a decrease in the value of SAIDI by 43.61% or by 1.3649 hours / year / customer. Thus, there is an increase in network reliability if the recloser at the RDT03 feeder is relocated to the location of section 29. Keywords: Reliability, Recloser, SAIFI, SAIDI, Particle Swarm Optimization ABSTRAKKeandalan suatu sistem jaringan distribusi tenaga listrik merupakan hal yang sangat penting untuk menjamin mutu pelayanan yang baik bagi konsumen. Fokus dari penelitian ini adalah untuk mencari desain koordinasi proteksi, topologi dan skema operasi yang optimal untuk penyulang RDT03 di Kawasan Industri Tambak Aji. Untuk menunjukkan tingkat keandalan dan kontinuitas jaringan distribusi tenaga listrik digunakan indeks SAIFI (System Average Interruption Frequency Index) dan indeks SAIDI (System Average Interruption Duration Index). Hasil optimalisasi menggunakan PSO (Particle Swarm Optimization), didapatkan hasil bahwa Best Fitness untuk penempatan recloser yang paling optimal adalah pada section 29 dengan nilai SAIFI sebesar 0.32575 dan nilai SAIDI sebesar 1.0558. Dengan menggunakan PSO, diperoleh lokasi letak recloser yang baru dengan nilai SAIFI yang lebih optimal dengan penurunan sebesar 36% atau sebesar 0,5675 kali/tahun/pelanggan dan penurunan nilai SAIDI sebesar 43,61% atau sebesar 1,3649 jam/tahun/pelanggan. Jika dibandingkan dengan letak recloser exsisting, recloser existing terletak pada section 25 dengan nilai SAIFI sebesar 0,8933 dan SAIDI sebesar 2,407. Dengan demikian terdapat peningkatan keandalan jaringan jika recloser pada penyulang RDT03 direlokasi menuju lokasi section 29.
Perancangan Pencatu Daya Alat Electrostatic Precipitator dengan Solar Cell pada Cerobong Pengasapan Ikan Prasojo, Agus; Haq, Lutfan Zainul; Prasetyowati, Sri Arrtini Dwi; Nugroho, Agus Adhi
Elektrika Vol. 15 No. 2 (2023): October 2023
Publisher : Universitas Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26623/elektrika.v15i2.7376

Abstract

In Kendal, smoked fish producers generally use the hot smoking method, in which the fish is placed close to the smoke source and smoked for three to four hours. The upside is that it has a significant impact on supporting many human endeavors, such as in industrial fishing and food processing. While the negative impact on the environment, such as environmental damage due to global warming, and air pollution. To overcome this problem, a prototype of an environmentally friendly Electrostatic Precipitator chimney has been created. This prototype is operated using power from a Solar Power Plant (PLTS). The results of this study indicate the potential absorption of solar radiation by solar cells shows good efficiency in the first test, the efficiency of solar cells recorded the lowest value of 8.50%, the highest reached 15.76%, with an average of 13.03%. Furthermore, in the second test, the efficiency of the Solar Cell showed an increase, recording the lowest value of 12.83%, the highest reaching 17.19%, and an average of 14.72%. The best test is in the second test because the first test is cloudy and drizzling. By utilizing the intensity of solar radiation as a resource, the Electrostatic Precipitator can be operated quite well. In the two tests carried out, the average output power of solar panels reached 28.51 and 49.49 Watts. Meanwhile, for the power used as the input of the tool in the two experiments, the values recorded were 30.70 and 10.33 Watts. Keywords: Fumigation, Electrostatic Precipitator, PLTS (Solar Power Plant) ABSTRAK  Di Kendal, para produsen ikan asap umumnya menggunakan metode pengasapan panas, di mana ikan diletakkan dekat dengan sumber asap dan diasapi selama tiga hingga empat jam. Dampak positifnya adalah memiliki dampak yang signifikan untuk mendukung banyak usaha manusia, seperti di bidang indutsri perikanan dan pengolahan makanan. Sedangkan, dampak negatifnya terhadap lingkungan, seperti kerusakan lingkungan akibat pemanasan global, dan polusi udara. Untuk menangani masalah tersebut, telah dibuat sebuah prototipe cerobong Electrostatic Precipitator yang ramah lingkungan. Prototipe ini dioperasikan menggunakan tenaga dari Pembangkit Listrik Tenaga Surya (PLTS). Hasil penelitian ini menunjukkan potensi tingkat penyerapan radiasi matahari oleh Solar Cell menunjukkan efisiensi yang baik pada pengujian pertama, efisiensi Solar Cell tercatat nilai terendah sebesar 8,50 %, tertinggi mencapai 15,76 %, dengan rata-rata 13,03%. Selanjutnya, pada pengujian kedua, efisiensi Solar Cell menunjukkan peningkatan, mencatat nilai terendah sebesar 12,83 %, tertinggi mencapai 17,19 %, dan rata-rata sebesar 14,72 %. Pengujian terbaik terdapat pada pengujian kedua dikarenakan pengujian pertama terdapat cuaca mendung dan gerimis. Dengan memanfaatkan intensitas radiasi matahari sebagai sumber daya, alat Electrostatic Precipitator dapat dioperasikan dengan cukup baik. Pada dua pengujian yang dilakukan, rata-rata daya Output  panel surya mencapai 28,51 dan 49,49 Watt. Sementara itu, untuk daya yang digunakan sebagai Input alat tersebut dalam dua percobaan, nilai yang tercatat adalah 30,70 dan 10,33 Watt.
Co-Authors Adi Gunawan, Adi Ahmad Riyanda Saputra Anwar, Miftakhul Umam Ulil Aulia, Riska Dwi BUSTANUL ARIFIN Bustanul Arifin Dedi Nugroho Diantoro, Sulis Dinara Alya Yuditha Eka Nuryanto Budi Susila Gunawan Gunawan Haq, Lutfan Zainul Ida Widihastuti Iftiar, Yuda Indri Safitri, Indri Luh Putu Ratna Sundari Muhamad Haddin Muhammad Alief Rizky Kurniawan Muhammad Kevin Hardiansyah Muhammad Khosyi'in Muhammad Khosyi’in Novita Popi Wulandari Nur Azizah Maghfiroh Prasetyowati, Sri Arrtini Dwi Prasojo, Agus Rhamadhan, Bintang Fajri Setiyawan, Puji Sri Arttini Dwi Prasetyawati Utomo, Sukarno Budi Waritza, Heryogka Ahmad Yulistiyanto, Andry