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All Journal DINAMIKA DOTCOM Panrita Abdi - Jurnal Pengabdian pada Masyarakat Jurnal Pengabdian Polinema Kepada Masyarakat Jurnal ELTEK ELPOSYS: Jurnal Sistem Kelistrikan Jurnal Teknik Ilmu dan Aplikasi
Fahmi Hakim, Muhammad
Jurusan Teknik Elektro, Politeknik Negeri Malang
Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Mechanical Engineering Other

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Real Time Monitoring System Dari Active Solar Photovoltaic Tracker Berbasis Internet Of Things Izra Bagus Kurniansyah; Ferdian Ronilaya; Muhammad Fahmi Hakim
Elposys: Jurnal Sistem Kelistrikan Vol. 7 No. 3 (2020): ELPOSYS vol.7 no.3 (2020)
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (640.944 KB) | DOI: 10.33795/elposys.v7i3.662

Abstract

There are still monitoring system in Solar Power Plant that do it manually. From here the idea emerged to develop a monitoring system using the IoT concept so that monitoring on Solar Power Plant that can be monitored just by looking at the website page, so current and voltage data can be easily monitored. This monitoring system is used to monitor the current and voltage of a solar power plant with solar cell capacities of 50WP, 80WP, and 100WP. In the application of using Solar Power Plant that, there is a current and voltage starting from the solar cell output, accumulator output, AC load input, and DC load input. The monitoring results that have been carried out will then be automatically sent to the Thingspeak application using the SIM800L Module. The thingspeak application will send data in the form of numbers and graphics in real time. By comparing the value of the measurement results on the Arduino and the Thingspeak application, the value of the percentage of reading errors on the measuring instrument is obtained. 3. In accordance with the tests that have been carried out, the percentage of read errors / errors can occur because of the reading accuracy of the current sensor measurements and AC-DC voltage sensors with different thingspeak applications. Each sensor has a percentage value of 0.16% AC & DC voltage sensor measurement error, 1.2% AC & DC current sensor, and 2.8% data transmission observation.
Upaya Peningkatan Keandalan Penyulang dengan Manuver Jaringan Slamet Nurhadi; Muhammad Fahmi Hakim; Ruwah Joto
Elposys: Jurnal Sistem Kelistrikan Vol. 10 No. 1 (2023): ELPOSYS vol.10 no.1 (2023)
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (737.032 KB) | DOI: 10.33795/elposys.v10i1.916

Abstract

The Tlogosari feeder was disturbed 20 times so that the reliability of system wasn’t said to be good. The purpose of this research was to make efforts to increase reliability and reduce ENS by maneuvering the network and adding CO Branch. Hoped that after these efforts the reliability level of Tlogosari Feeder will be better and ENS will be as minimal as possible. The network maneuver is carried out by delegating part of Tlogosari Feeder load when it experiences a disturbance to the nearest feeders on the condition that the total load current after the maneuver doesn’t exceed the current setting and conductor ampacity. The addition of CO Branch is based on fault data to localize fault points to reduce transformer outages. After performing network maneuvers and adding CO Branch in the sub-networks, it was found that the SAIDI and SAIFI values were improved and the ENS was reduced. Network maneuvering and addition of CO Branch are quite effective in implementing the Tlogosari Feeder.
Sistem Monitoring Online Dan Analisis Perfomansi Plts Panel Surya Monocrystalline 100 Wp Berbasis Web Rohmanita Duanaputri; Irwan Heryanto/Eryk; Muhammad Firas Sajidan; Muhammad Fahmi Hakim; Ayusta Lukita Wardani
Elposys: Jurnal Sistem Kelistrikan Vol. 10 No. 1 (2023): ELPOSYS vol.10 no.1 (2023)
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (778.306 KB) | DOI: 10.33795/elposys.v10i1.715

Abstract

In this modern life, people's dependence on energy sources, especially electrical energy, has led to innovation in the use of cheap alternative energy sources that are environmentally friendly such as solar energy, one of which is PLTS. To support PLTS performance, a web-based monitoring system is needed for remote monitoring in monitoring PLTS performance, the data displayed is the result of measurements by voltage and current sensors installed in each solar panel on the PLTS performance detector. In this case, it is necessary to develop a Web-based monitoring system to help improve the efficiency of performance maintenance on 100 wp monocrystalline panels. By using the INA260 sensor in the form of a digital DC sensor that can measure a maximum current of 15 A, a maximum voltage of 36 v, and DC power and the DS18B20 sensor is a digital sensor that can measure the surface temperature of the panel. Sensor readings can be displayed offline via the HMI LCD while online readings can be displayed in the form of a Web which has a graphical display feature for each parameter and downloads data in the form of a .csv file as a feature that supports data analysis. The results of the sensor validation test or calibration using a measuring instrument have an average error sensor reading of 0.34 %. The average current sensor error is 0.63%, and the power sensor error average is 0.56%, while the average panel surface temperature sensor error is 0.34%
Perencanaan Desain Single Tuned Passive Filter Harmonisa Pada AC Microgrid Turbin Tenaga Angin Rhezal Agung Ananto; Rohmanita Duanaputri; Asfari Hariz Santoso; Muhammad Fahmi Hakim
Elposys: Jurnal Sistem Kelistrikan Vol. 10 No. 1 (2023): ELPOSYS vol.10 no.1 (2023)
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (425.764 KB) | DOI: 10.33795/elposys.v10i1.1025

Abstract

A microgrid usually consists of small-scale of thermal generation sources and other distributed energy resources (DER) such as photovoltaic, wind power, and fuel cells to serve its loads. In this paper microgirid AC system using wind turbines. Microgrid AC systems use an inverter which is a source of harmonics for need to convert to AC system Load . And the system will also get the source of harmonics when the system is connected to the non-linear load. wind turbines can generate harmonics also. So that it can degrade the quality of the power of the system. In addition the power factor, and voltage system is not good. So thesystem mitigate solution is using a passive filter tuned to the affected bus. The simulation results show that the design singgle tune passive filters can be effective and have a good performance in mitigating microgrid system
KAJIAN SKEMA BARU OVER LOAD SHEDDING DI GITET PAITON Muhammad Fahmi Hakim; Muhammad Yusril Ihza Al Hakam; Saddani Djulihenanto
Jurnal Teknik Ilmu dan Aplikasi Vol. 2 No. 2 (2021): Jurnal Teknik Ilmu dan Aplikasi
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (367.834 KB)

Abstract

Perkembangan dan kemajuan teknologi mengakibatkan adanya pembebanan pada suatu sistem tenaga listrik akan meningkat. Oleh sebab itu dibutuhkan Defence Scheme yang baik dalam mencegah terjadinya kegagalan sistem ketika terjadi kondisi beban melebihi kapasitas generator, sehingga penting untuk dilakukan Load Shedding upaya mencegah terjadinya pemadaman pada sistem transmisi 150 kV. PT. PLN (Persero) berupaya menjaga kontinyuitas sistem, dengan melakukan pelepasan beban lebih atau Over Load Shedding (OLS) jika terjadi gangguan tersebut. Penelitian menyajikan Pemodelan sistem dan simulasi aliran daya skema baru Over Load Shedding pada kondisi normal dan kondisi abnormal menggunakan ETAP 12.6. Berdasarkan simulasi menurut skema Over Load Shedding yang dibuat oleh PT. PLN (Persero) dengan total beban yang dilepas sebesar 339,78 MW atau 38,2 persen dari beban total. Hasil simulasi tersebut menunjukkan beban-beban prioritas kelas 1 yang dilepas, sehingga diperlukan adanya skema baru Over Load Shedding dengan memperhatikan beban prioritas dan beban non prioritas agar beban yang dilepas lebih kecil. Simulasi total beban yang dilepas pada skema baru sebesar 223,76 MW atau 25,2 persen dari beban total. Sehingga selisih beban yang dilepas dari skema PT. PLN dengan skema baru sebesar 116,02 MW.
Analisis Perencanaan Capacitor Bank Untuk Perbaikan Faktor Daya Pada Pusat Perbelanjaan Blitar Square Sulistyowati; Muhammad Fahmi Hakim; Ikfi Asmaul Khusna; Heri Sungkowo
Elposys: Jurnal Sistem Kelistrikan Vol. 8 No. 3 (2021): ELPOSYS vol.8 no.3 (2021)
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/elposys.v8i3.80

Abstract

From the research that has been done at the Blitar Square Shopping Center, it was found that the power factor value is still below the standard with an average value of 0.711. Therefore, it is necessary to improve the power factor by installing a capacitor bank. The calculation results show that global compensation requires 12 capacitor banks with a rating of 10.4 kVAR, while sectoral compensation on the chiller load panel requires 7 capacitor banks with a rating of 10.4 kVAR and the foodmart load panel requires a capacitor bank with a rating of 10. 4 kVAR is 6 pieces. In addition, the installation of a capacitor bank also results in an increase in the voltage value in the system, this voltage increase is still below the permissible standard of ± 5%. The simulation of installing a capacitor bank on global compensation can improve the power factor value from 72.99% to 96.97%, with a voltage increase of 0.479% from the initial value of 397 V to 398.9 V, and a decrease in the current value of 24.645% from the initial value. 330.7 A to 249.2 A. While the simulation of installing a capacitor bank in sectoral compensation can improve the power factor value from 72.99% to 93.57%, with a voltage increase of 0.401% from the initial value of 397 V to 398.6 V , and a decrease in the value of current by 21.593% from the initial value of 330.7 A to 258.1 A.
SUPLAI DAYA CADANGAN MENGGUNAKAN SISTEM HYBRID Awan Setiawan; Muhammad Fahmi Hakim
Jurnal Teknik Ilmu dan Aplikasi Vol. 3 No. 2 (2022): Jurnal Teknik Ilmu dan Aplikasi
Publisher : Politeknik Negeri Malang

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

Abstract

Pada perusahaan manufaktur peralatan industri, ketika terjadi pemadaman listrik PT PLN, harus menunggu proses transisi suplai daya ke genset sehingga proses produksi harus terhenti sejenak. Dengan adanya hal itu maka perlu didesain suplai daya cadangan baru yang mampu menyuplai daya dengan seketika beserta instalasinya. Suplai daya cadangan yang sesuai adalah Uniterruptible Power Supply (UPS) yang dioperasikan secara hybrid dengan genset. Langkah pertama adalah menentukan kapasitas UPS kemudian menghitung kapasitas baterai dan dilanjutkan menentukan jumlah baterai. Selanjutnya menghitung KHA penghantar beserta arus nominal MCB. Simulasi di ETAP digunakan untuk memeriksa peningkatan performa dari sistem kelistrikan pabrik menggunakan parameter tegangan. UPS yang sesuai berkapasitas 160 kVA, dimensi 560 x 940 x 1800 mm, tegangan keluaran 230/400 V, frekuensi 50-60 Hz dan faktor daya 0,9. Baterai yang digunakan berkapasitas 140 Ah, dimensi 341 x 173 x 281 mm, sejumlah 53 buah. KHA penghantar minimal adalah 80,37 A dan maksimal 161 A. Arus nominal MCB minimal 16 A dan maksimal 126 A. Berdasarkan hasil simulasi sebelum pemasangan UPS, saat suplai utama dari PLN mengalami gangguan, beban prioritas tidak mendapatkan tegangan sampai genset mensuplai energi listrik. Namun setelah pemasangan UPS beban prioritas langsung mendapatkan tegangan dari UPS yang dilanjutkan mendapat suplai dari genset. Beban prioritas yaitu beberapa mesin CNC untuk rposes produksi.
Analisis Penambahan Nutrisi Pada Tanaman Hidroponik Berbasis Internet of Things Priya Surya Harijanto; Masramdhani Saputra; Muhammad Fahmi Hakim; Oky Achmad E
Elposys: Jurnal Sistem Kelistrikan Vol. 9 No. 3 (2022): ELPOSYS vol.9 no.3 (2022)
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (852.704 KB) | DOI: 10.33795/elposys.v9i3.653

Abstract

In an increasingly advanced era, electrical energy has become a basic resource for humans, the wider and more equitable distribution has greatly influenced the progress of all sectors of electricity users. However, on the other hand, this hydroponic business requires precision and special attention by the actors to support the maximum success of the hydroponic business. Several previous tools have been able to overcome the problem of irrigation for hydroponic plants. However, there is no tool that can regulate the addition of nutrients based on the internet of things and monitor the hydroponics. So, a tool for adding nutrients to hydroponic plants based on the internet of things was designed that is equipped with supervision on plant nutrition. It is hoped that after the manufacture and analysis of tools on hydroponic plants can overcome the problems that are often experienced by hydroponic entrepreneurs.The research was conducted from May to July 2022 in Margoutomo Dalam, Dau, Malang. This nutrient addition tool is designed using an Arduino Uno microcontroller where as a regulator and NodeMCU is added as an online access on the user's cellphone. After the tool has been designed, a regression analysis is carried out to determine the effect of nutrient levels on the fertility of hydroponic plants. The results of this study showed that the nutritional value of a good plant was 350 ppm, with the response rate of this nutrition enhancer at 1.62% per second at a distance of 338 km for testing the user.
Co-Authors Abd. Rasyid Syamsuri Agung Laksono Pamuji Ahmad Hermawan Ananto, Rhezal Agung Asfari Hariz Santoso Awan Setiawan Ayusta Lukita Wardani Bagus Kurniansyah, Izra Bakti Indra Bakti Indra Kurniawan Bakti Indra Kurniawan Brenda Yuunilel Vinza Herman Budi Eko Prasetyo Budi Eko Prasetyo Devi Soviati Mahmudah Hafiz Furqoni Hafiz Furqoni Hana Nabilla Hapsari Hari Kurnia Safitri Hari Sucipto Helmy Mukti Himawan Helmy Mukti Himawan, Helmy Mukti Herman, Brenda Yuniel Vinza Ichwan Bayu Kusuma Ikfi Asmaul Khusna Imron Ridzki IRWAN HERYANTO ERYK Irwan Heryanto/Eryk Irwan Heyanto/Eryk Izra Bagus Kurniansyah Kurniawan, Bakti Indra Kusuma, Ichwan Bayu Latasha Fadiela Nurlakshita M. Noor Hidayat Masramdhani Saputra Mohammad Noor Hidayat Mudjiono Mudjiono Mudjiono Mudjiono Muhammad Firas Sajidan Muhammad Marozi Effendi Muhammad Marozi Effendi Muhammad Yusril Ihza Al Hakam Nurhadi - Oky Achmad E Priya Surya Harijanto Rahman Azis Prasojo Rahman Azis Prasojo Ridzki, Imron Rohmanita Duanaputri Ronilaya, Ferdian Ruwah Joto Saddani Djulihenanto Sapto Wibowo Satrio Pamungkas Bayu Aji Wibowo Sigi Syah Wibowo Sigit Setya Wiwaha Sri Wahyuni Dali Sucipto, Hari Sukamdi Sulistyowati Sungkowo, Heri