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All Journal Jurnal Ilmiah Teknik Elektro Komputer dan Informatika (JITEKI) Jurnal EECCIS Jurnal Pengabdian Polinema Kepada Masyarakat Jurnal ELTEK ELPOSYS: Jurnal Sistem Kelistrikan Jurnal Teknik Ilmu dan Aplikasi Jurnal Rekayasa elektrika Research Horizon Jurnal ELTEK
Ridzki, Imron
Politeknik Negeri Malang
Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Mechanical Engineering Social Sciences

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DC-DC CONVERTER 1300 VA DENGAN PENGENDALI ARUS BERBASIS PENGENDALI ARDUINO MEGA UNTUK APLIKASI CHARGER Masramdhani Saputra; Saddani Djulihenanto; Imron Ridzki
Jurnal Teknik Ilmu dan Aplikasi Vol. 3 No. 2 (2022): Jurnal Teknik Ilmu dan Aplikasi
Publisher : Politeknik Negeri Malang

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Abstract

DC-DC converter adalah satu jenis konverter daya yang paling banyak digunakan di berbagai subjek ketenagalistrikan. Hal tersebut dikarenakan semakin banyak aplikasi yang berbasis elektrifikasi teknologi terdahulu seperti mobil listrik dan sepeda listrik. Pada aplikasi tersebut rel tegangan yang banyak digunakan adalah di level 48 V. Pengendali arus sangat dibutuhkan dalam proses pengisian baterai. Untuk merealisasikan kendali arus berbasis PID pada dc-dc converter, cenderung lebih sulit. Oleh karena itu, pada penelitian ini, kendali arus yang digunakan adalah pengendali hysteresis atau umumnya lebih dikenal sebagai bang-bang comparator. Keunggulan kendali ini adalah memiliki respon yang cepat serta secara alami mengatasi masalah hubung singkat pada terminal keluaran. Pengendali arus diimplementasikan pada board arduino mega. Pada penelitian ini, rangkaian dc-dc converter dengan jenis buck telah berhasil diimplementasikan beserta dengan dengan arus keluaran terkendali. Pengendali arus juga dapat diimplementasikan pada board arduino mega 2560. Berdasarkan hasil eksperimen, efisiensi tertinggi yang mampu dicapai pada konverter ini adalah 88 %. Pengisian pada baterai dengan sistem tegangan 48 V berjalan sesuai dengan mode constant current.
ANALISIS FINITE ELEMENT PENGARUH LEBAR CELAH UDARA TERHADAP PEFORMA MOTOR INDUKSI SATU FASA Imron Ridzki; Asfari Hariz Santoso; Sigit Setya Wiwaha
Jurnal Teknik Ilmu dan Aplikasi Vol. 3 No. 2 (2022): Jurnal Teknik Ilmu dan Aplikasi
Publisher : Politeknik Negeri Malang

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Abstract

Motor induksi merupakan motor listrik yang luas penggunaannya khususnya pada industri. Seringkali industri yang terletak jauh di pedalaman, bila terjadi kerusakan pada motor induksi dilakukan perbaikan dengan cara replacement antara motor induksi yang satu dengan motor induksi yang lain dan hanya diperhatikan daya motor dan sistem tegangan yang digunakan, sehinga seringkali dimensinya juga tidak persis sama. Dengan adanya kegiatan replacement tersebut diduga motor induksi tersebut akan mengalami banyak perubahan khususnya lebar celah udaranya. Untuk menghindari nilai effisiensi yang rendah, faktor daya yang buruk, dan kerapatan torsi yang rendah maka jarak celah udara suatu motor induksi tidak dirancang terlalu lebar. Di sisi lain distorsi distribusi kerapatan fluks celah udara dapat diminimalkan dengan memperbesar jarak celah udara. Penelitian ini dilakukan pengikisan sedikit diameter rotor pada motor induksi satu fasa rotor sangkar 1 kW 1000 rpm sehingga lebar celah udara 3,5 mm (Rotor A), 2,5 mm (Rotor B), dan 4 mm (Rotor C). Melalui analisis Finite Element menggunakan software FEMM 4.2 didapatkan kerapatan fluks celah udara tertinggi pada Rotor A 0,456 T, Rotor B 0,634 T, Rotor C sebesar 0,399 T. Sedangkan daya output saat beban nominal masing-masing motor didapatkan 0,77 kW (Rotor A), 1,03 kW (Rotor B), dan 0,69 kW Rotor C).
Rancang Bangun Thermoelectric Generator (TEG) Sebagai Suplai Daya Alternatif Germinasi Kacang Hijau Ridzki, Imron; Hariz Santoso, Asfari; Awan Setiawan; Wijaya Kusuma
Elposys: Jurnal Sistem Kelistrikan Vol. 11 No. 1 (2024): ELPOSYS vol. 11 no. 1 (2024)
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/elposys.v11i1.4581

Abstract

The central government has established the National Energy Policy (KEN) to increase the utilization of renewable energy sources (EBT) by around 23% by 2025 and 31% by 2050. In an effort to support the government's program, researchers have developed a Thermoelectric Generator (TEG) as an alternative power supply to replace the energy source from PT PLN for electrical equipment used in the green bean germination process such as lights, fans, and water pumps. This prototype consists of two chambers: a combustion chamber that generates electrical energy and a control room for the germination process. These two areas are separated to ensure that the control device and germination process are not affected by the heat from combustion. The main components of this prototype include ten TEG units with a maximum power of 5.2 W, a 33 Ah battery, an 8A Buck-boost converter, a 3A Buck converter, a 6W Full Spectrum LED, four DC fans, and a DC pump. The TEG functions effectively as the germination process proceeds smoothly.
Analisis Kinerja Sistem Proteksi Berdasarkan Peramalan Beban Pada Penyulang Galunggung Mochammad , Mieftah; Bakti Indra Kurniawan; Ridzki , Imron; Sutjipto, Rachmat
Elposys: Jurnal Sistem Kelistrikan Vol. 10 No. 3 (2023): ELPOSYS vol. 10 no. 3 (2023)
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/elposys.v10i3.4582

Abstract

The Galunggung feeder has a total line length of 10.68 kilometers and is supplied by power transformer number 1 at the Polehan substation, with a capacity of 30 MVA. As of December 2020, the peak load on the Galunggung feeder was recorded at 231.4 A, while the lowest load was 133.9 A. Up to the current condition, the Galunggung feeder is operating within standard parameters, with a voltage drop of 0.434 kV or 2.17%. However, it is possible that with future developments and an increase in the number of customers over the years, the energy demand will also increase. Due to this additional energy demand, the protection system may require adjustments to accommodate the increased load.After conducting load forecasting using simple linear regression, a forecast for the next 10 years was obtained. In the year 2030, it is anticipated that the Galunggung feeder will experience a 24% increase in load. With this load increase and no changes to transformers or conductors, there will be no alterations to impedance and short-circuit current calculations. Therefore, no protection setting adjustments are necessary. The recommended action would be to upgrade some transformers that are approaching their capacity limits.
Analisis perbandingan tipe belitan terhadap nilai parameter motor induksi satu fasa Ridzki, Imron; Santoso, Asfari Hariz; Hermawan, Ahmad
JURNAL ELTEK Vol. 20 No. 1 (2022): April 2022
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/eltek.v20i1.318

Abstract

Motor induksi merupakan salah satu motor listrik yang luas penggunaannya. Salah satu jenis motor induksi adalah motor induksi satu fasa. Pada kondisi tertentu motor induksi perlu dilakukan rewinding pada kumparannya. Proses rewinding sebelumnya harus ditentukan jumlah kutub, tipe belitan, dimensi konduktor, serta jumlah lilitnya. Praktik di lapangan ketika melakukan proses rewinding umummya hanya memperhatikan jumlah kutub, akan tetapi tipe belitan tidak begitu diperhatikan secara khusus. Pada dasaranya setiap tipe belitan menghasilkan gaya gerak magnit (mmf) yang berbedabeda, yang mana mmf tersebut mengandung komponen fundamental dan komponen harmonisanya. Hal ini akan berakibat fluksi yang dihasilkan juga berbeda. Dimana fluksi juga mempunyai peran pada nilai parameter motor induksi satu fasa. Pada penelitian ini dilakukan proses rewinding pada dua motor induksi dengan konstruksi yang sama, motor induksi pertama (M1) dengan tipe belitan terbagi-skrew dan motor induksi kedua (M2) dengan tipe belitan terpusat terdistribusi, kemudian dilakukan pengujian untuk mengetahui paramater motor induksi hasil rewinding. Hasil pengujian didapatkan perbedaan nilai reaktansi dimana M1 nilai reaktansi kumparan stator dan rotornya berturut-turut 5,71 Ω dan 5,71 Ω, pada M2 nilai reaktansi stator dan rotornya berturut-turut 5,98 Ω dan 5,98 Ω. Analisis perbedaan nilai reaktansi motor induksi tersebut dilakukan analisis finite element menggunakan perangkat lunak FEMM 4.2. ABSTRACT The single-phase induction motor is one of the most widely used electric motors. Under certain conditions, the induction motor needs to be rewinded on the coil. The rewinding process must determine the number of poles, the type of winding, the dimensions of the conductor, and the number of turns. Generally, when carrying out the rewinding process, the winding type is not given much special attention. Where each type of winding produces a different magnetomotive force (mmf). This will result in different fluxes resulting in different parameter values for single-phase induction motors. In this study, a comparison of the parameters of an induction motor with the same construction and with different winding types will be carried out. The first motor (M1) is of the screw-shared winding type and the second motor (M2) is of the distributed concentrated winding type. The test results show a difference in the reactance value where M1 the reactance values of the stator and rotor coils are 5.71 Ω and 5.71 Ω, respectively, while in M2 the stator and rotor reactance values are 5.98 Ω and 5.98 Ω, respectively. The difference in reactance values was carried out by finite element analysis using FEMM 4.2.
IoT-based Monitoring System for Energy Consumption Costs from Battery Supply Hakim, Muhammad Fahmi; Kusuma, Wijaya; Suudi, Ismail; Ridzki, Imron; Setiawan, Awan; Syamsuri, Tresna Umar
Jurnal Rekayasa Elektrika Vol 20, No 4 (2024)
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17529/jre.v20i4.35237

Abstract

A battery must be monitored in real-time to ensure it meets its designed lifetime. Additionally, energy costs from the battery supply must be calculated and controlled to enable solar power plant entrepreneurs to profit practically. This project aims to develop an IoT-based monitoring and controlling system for battery conditions, especially energy consumption costs from battery supply. This system uses an ESP32 microcontroller, INA219 sensor, single channel 5 VDC optocoupler relay, and OLED display. The ESP32 processes the current and voltage from the INA219 sensor and then displays on the OLED display. The parameters displayed include consumed energy costs, current, voltage, power, consumed energy, and used battery capacity. Data is also sent to the Blynk website using IoT, allowing these parameters to be monitored in real time. Based on test results, the average error in calculating energy costs is 0.046%, and other measured or calculated parameters are below 1%. This system can also turn the power flow to the load on and off using the Blynk platform. It can be concluded that the system works well, enabling IoT-based monitoring and control of battery parameters.
Participatory Training and Battery-Powered Milking Nurhadi, Slamet; Ridzki, Imron; Wiwaha, Sigit Setya; Duanaputri, Rohmanita; Effendrik, Popong; Gumilang, Binar Surya
Research Horizon Vol. 5 No. 3 (2025): Research Horizon - June 2025
Publisher : LifeSciFi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54518/rh.5.3.2025.995-1006

Abstract

Smallholder goat farmers in Jabung Village, Malang Regency, face significant challenges related to manual milking, including prolonged labor time and limited access to appropriate technologies. This study aimed to evaluate the effectiveness of a portable, battery-powered milking device in enhancing labor efficiency, technical knowledge, and economic outcomes for these farmers. Using a Participatory Action Research (PAR) approach, the research involved 50 farmers through a baseline survey, co-design process, a six-hour training session, and follow-up evaluation. The results showed that the device reduced the average milking time for five goats from 64 ± 4 minutes to 55 ± 3 minutes, indicating a 14% improvement. Farmers’ technical knowledge also increased significantly, from 42% to 85% after training. User satisfaction was high, averaging 4.2 out of 5, with women reporting greater ergonomic benefits. Economically, the device demonstrated an eight-month payback period based on a milk price of 12,000 Indonesian Rupiah per liter. Furthermore, 80% of farmers were able to operate the device independently after training. These findings suggest that the device holds strong potential to improve smallholder productivity and resilience, contributing to Sustainable Development Goals (SDGs) 2 and 7. However, limitations include the small sample size and the absence of data on milk quality, indicating the need for broader, long-term research.
Implementation of Power Factor Correction using Asynchronous Boost Converter on Single Phase Full-Bridge Diode Saputra, Masramdhani; Ridzki, Imron; Wiwaha, Sigit Setya; Djulihenanto, Saddani
Jurnal EECCIS (Electrics, Electronics, Communications, Controls, Informatics, Systems) Vol. 17 No. 2 (2023)
Publisher : Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jeeccis.v17i2.1630

Abstract

In various industrial applications, the use of a power supply that uses a conventional diode single-phase rectifier topology results in high harmonic values in the electricity distribution system. One of the real impacts of this harmonic value is the heating of the electric power system equipment and power losses. High rms current values due to harmonics often cause problems in protection settings in addition to efficiency problems. The percentage value between the total harmonic component and the fundamental component is called THD (Total Harmonic Distortions). Therefore, in this study an asynchronous dcdc boost converter is connected to the output side of a singlephase diode rectifier which is capable of improving power factor and low harmonics. So that a THD value of less than 15%, PF (Power Factor) = 0.92-1 and a sinusoidal input current can be obtained. The implementation results show that the PFC (Power Factor Correction) method can work well on single-phase diode rectifiers.
Co-Authors Abd. Rasyid Syamsuri Abdullah Iskandar Syah Amaral, Hanifiyah Darna Fidya Asfari Hariz Santoso Awan Setiawan Awan Setiawan Awan Setiawan Bakti Indra Bakti Indra Kurniawan Bakti Indra Kurniawan Binar Surya Gumilang Budi Eko Prasetyo Chandra Wiharya Chandra Wiharya Devi Soviati Mahmudah Djulihenanto, Saddani Effendrik, Popong Egar Rahmat Maulana Enrico Erine Puspita Sari Erlinda Anindyasani Fahmi Hakim, Muhammad Gian Fikih Yustiawan Gumilang, Binar Surya Hakim, Muhammad Fahmi Hana Nabilla Hapsari Hari Sucipto Hariz Santoso, Asfari Hermawan, Ahmad Ichwan Bayu Kusuma Irwan Heryanto/Eryk Kumala Mahda Habsari Kurniawan, Bakti Indra Kusuma, Ichwan Bayu Langlang Gumilar Latasha Fadiela Nurlakshita Lukman Hakim lukman, hakim M. Syarif Hidayatullah M. Syarif Hidayatullah Masramdhani Saputra Mochammad , Mieftah Moh. Zainul Falah Mohammad Iqbal Yulianto Mudjiono Mudjiono Mudjiono Nurhadi - Nurhadi, Slamet Prasetyo, Budi Eko Priya Surya Priya Surya Harijanto Rahman Azis Prasojo Rohmanita Duanaputri Saddani Djulihenanto Santoso, Asfari Hariz Saputra, Masramdhani Sigit Setya Wiwaha Sri Wahyuni Dali Sukamdi Surya, Priya Sutjipto, Rachmat Suudi, Ismail Syamsuri, Tresna Umar Wijaya Kusuma Wijaya Kusuma Wiwaha, Sigit Setya Yulianto, Mohammad Iqbal