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All Journal Jurnal Ilmiah Teknik Elektro Komputer dan Informatika (JITEKI) Teknika: Jurnal Sains dan Teknologi Proceeding of the Electrical Engineering Computer Science and Informatics SCIENCE TECH: Jurnal Ilmiah Ilmu Pengetahuan dan Teknologi Journal of Fuzzy Systems and Control (JFSC)
Jimmy Trio Putra
Universitas Gadjah Mada
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology

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PERANCANGAN TUNER GITAR OTOMATIS DENGAN METODE OPEN TUNING BERBASIS SINGLE BOARD MICROCONTROLLER Adlan Bagus Pradana; Achmad Dian Ramadhan; Aldila Fajar; Jimmy Trio Putra
Science Tech: Jurnal Ilmu Pengetahuan dan Teknologi Vol 7 No 2 (2021): Agustus
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/st.vol7.no2.a10296

Abstract

The guitar is a popular musical instrument by many people. Besides being able to be used as entertainment, playing music, one of which is the guitar, can also be used to train concentration. In playing the guitar, the sound of the guitar strings that match the harmony chord is the main key so that when playing the song it sounds harmonious. Of course this is related to the tuning process or the tuning process. Many people can play the guitar, but many of them have difficulty in tuning. Most people do the tuning manually. This of course will take a long time to produce an accurate tone.With the rapid development of technology, this problem can be solved with an automatic guitar tuner based on a single board microcontroller using the open tuning method. The design of this automatic guitar tuner uses 7 constituent components, namely a single board microcontroller (Arduino UNO), servo motor, Op-Amp, LED, LCD, push button, and acrylic. The tuning process is done by selecting the guitar strings to be tuned. Then, when the guitar is picked, the frequency will be amplified by the Op-Amp. After that, arduino will initialize the frequency and give a signal to the servo motor. The servo motor will perform the tuning process which will later display the results on the LCD. While the LED functions as a tuning indicator. Acrylic serves as a place to put components.
Improvement of the power factor on the distribution line feeder Sutami 23 Lampung using capacitor bank and SVC with ETAP 12.6 simulation Alvin Harista Rahman; Ahmad Hidayahtullah; Afrida Nurul Ulfa; Rizal Zulfiqri Ahmad; Jimmy Trio Putra
Jurnal Teknika Vol 17, No 2 (2021): Available Online in November 2021
Publisher : Faculty of Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/tjst.v17i2.11729

Abstract

A good power distribution rate is the key to the success of electric power service providers in fulfilling consumer rights. A poor power distribution rate will cause a lot of losses, both for consumers and providers. The power distribution rate is closely related to the power factor value (PF). Low PF should be avoided to get a good power distribution rate. Sutami 23 Lampung feeder data shows 216 buses with a PF below the SPLN 70-1: 1985 standard, which is 0.85, so a PF correction is needed. In this research, PF corrections have been made with the ETAP simulation method for two kinds of components, namely capacitor bank, and SVC (static VAr compensator). The results showed that installing the capacitor bank is more recommended than SVC because the impact of installing the capacitor bank for PF correction is bigger than SVC. Capacitor bank can raise the PF from 0.82 to 0.98, while SVC can only raise the PF from 0.82 to 0.91. In addition, the investment cost for installing a capacitor bank is also much cheaper than SVC, with a cost difference of 1,932,000.250 IDR. Salah satu cara yang dapat dilakukan untuk memperbaiki tingkat penyaluran daya adalah dengan melakukan upaya perbaikan faktor daya (PF). Standar SPLN 70-1: 1985 menyatakan nilai PF minimal adalah 0,85. Data Penyulang Sutami 23 Lampung menunjukkan terdapat 216 bus dengan nilai PF di bawah 0,85 sehingga diperlukan adanya upaya perbaikan. Pada penelitian ini telah dilakukan perbaikan nilai PF dengan menggunakan metode simulasi ETAP 12.6 melalui kapasitor bank dan static VAr compensator (SVC). Hasil menunjukkan bahwa komponen kapasitor bank lebih direkomendasikan untuk memperbaiki nilai PF Penyulang Sutami 23 Lampung karena dengan nilai kapasitas daya kVAr yang sama, tercatat nilai PF baru hasil perbaikan dari pemasangan kapasitor bank memiliki nilai yang lebih tinggi daripada nilai PF baru yang dihasilkan dari pemasangan SVC. Pemasangan kapasitor bank mampu memperbaiki nilai PF dari 0,82 menjadi 0,98. Sedangkan, untuk pemasangan SVC mampu memperbaiki nilai PF dari 0,82 menjadi 0,91. Selain itu, total biaya investasi yang dibutuhkan untuk pemasangan kapasitor bank juga lebih murah jika dibandingkan dengan SVC yaitu memiliki selisih biaya sebesar Rp1.932.000.250,-.
Hosting Capacity Distribution System Yogyakarta with Ant Lion Optimization: A Case Multiobjective Riki Khomarudin; Jimmy Trio Putra; Ramadoni Syahputra; Anna Nur Nazilah Chamim
Jurnal Ilmiah Teknik Elektro Komputer dan Informatika Vol 7, No 1 (2021): April
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26555/jiteki.v7i1.20473

Abstract

Penetration of hosting capacity in radial type power distribution systems aims to increase the voltage profile on the end customer side. The more electricity customers increase, the more electricity user load growth will increase. This results in a voltage drop on the end customer side in the radial distribution system, characterized by a voltage exceeding the minimum standard operating acceptable voltage. This paper aims to provide solutions to cases in radial grid type power systems in solve voltage drops. The addition of hosting capacity for distributed renewable energy generators is one of the goals to increase the capacity of the electricity system. This research uses the Ant Lion Optimization algorithm method to try to find the optimal location and capacity of Distributed Generation in the electric power distribution system. Penetration hosting capacity injects renewable energy generation in the form of solar cells. The simulation results show that the increased voltage profile in the electric power distribution system exceeds the minimum voltage drop standard. So that in reducing power losses in the radial type network.
Load Balancing on TJSB Transformer Distribution using Two-Points Time Method Jimmy Trio Putra; Mohammad Arsyad
Jurnal Ilmiah Teknik Elektro Komputer dan Informatika Vol 4, No 2 (2018)
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (447.811 KB) | DOI: 10.26555/jiteki.v4i2.11809

Abstract

The load unbalances is caused by single phase loads on low voltage network consumers. In the design of three-phase transformer loads are generally designed in a balanced way, but in reality that occurs, the distribution of transformer load in the network is not balanced. This unbalance can lead the current to flow in a neutral conductor if not observed accordingly. The flowing current in the transformer's neutral conductor can cause losses. This paper discusses load balancing using the two-point time method as a recommendation for moving the consumer's load from one phase to another phase. This study used real data by performing direct measurements on the loading of TJSB transformer Pabuaran feeder of PT (PLN) Persero Sukabumi Region both before and after the load balancing. The results obtained after the load balancing include the percentage of unbalance during the day that is 5% which was previously 16% and at night become 5.6% from 25.6%. The initial neutral current was 44 A and decreased to be 16 A during the day, while at night decreased from 68 A to 24 A. Power losses due to neutral currents flowing in the neutral conductor obtained at noon i.e. 0.19 kW from previously 1.32 kW and at night 0.39 kW from the previous 2.3 kW.
Reliability Analysis of Randu Garut 3 Distribution System Using Section Technique Method Jimmy Trio Putra; Raka Bagus
Proceeding of the Electrical Engineering Computer Science and Informatics Vol 5: EECSI 2018
Publisher : IAES Indonesia Section

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (578.148 KB) | DOI: 10.11591/eecsi.v5.1692

Abstract

In a distribution system, reliability index is significant to calculate system performance in continuosly distribute the electricity power to consuments. Fedeer analysed by researcher is the main electricity distributor in Tambak Aji industrial area, a developing industrial area. This research is needed to be conducted to ensure the frequent blackout is known and minimalized along with increasement of load number in the feeder. Using section technique method which divides feeder section based on sectionalizer number and detailed calculation in each load point, device failure rate, the length of conductor, and disturbance repairement duration. It was obtained Randu Garut 3 feeder reliability index of SAIFI of 1.759 faults/year, SAIDI of 4.547 hours/year as CAIDI of 2.585 hours/year.
Optimization of Photovoltaic (PV) Hosting Capacity in 20 kV Distribution System Using Grey Wolf Optimizer (GWO) Algorithm Syah Ridho Natiqoh; Atikah Surriani; Jimmy Trio Putra; Ahmad Adhiim Muthahhari
Journal of Fuzzy Systems and Control Vol. 4 No. 3 (2026): Vol. 4 No. 3 2026
Publisher : Peneliti Teknologi Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59247/jfsc.v4i3.426

Abstract

The transition toward sustainable energy systems to mitigate global warming caused by greenhouse gas emissions from fossil fuel-based power generation has accelerated the integration of photovoltaic (PV) systems into distribution networks. However, massive and uncontrolled PV integration may lead to operational issues in power systems. Therefore, hosting capacity studies are required to determine the maximum PV capacity that can be integrated without violating technical operating constraints. Due to the complex, non-linear, and non-convex nature of the hosting capacity problem, effective optimization techniques are necessary. This study proposes the Grey Wolf Optimizer (GWO) algorithm to determine the optimal location and capacity of PV with the objectives of maximizing the PV penetration while minimizing system power losses. The Site Planning Model (SPM) method is employed to identify candidate buses for PV installation, thereby reducing space and computational time. By coupling GWO's global search with SPM-based candidate-bus pre-selection, this study reduces the optimization search space while preserving solution quality. The IEEE 33-bus 20 kV test system is used to evaluate the performance of the proposed method in single and multiple PV installations with inverter power factors of unity and 0.95 lagging. The results show that the GWO algorithm achieves stable and consistent convergence, with a maximum PV penetration rate of 87.99% and a system power loss reduction of 85.57% in the scenario involving three PV units on three busbars at a 0.95 lagging power factor. Furthermore, an inverter power factor closer to unity tends to reduce the maximum achievable PV penetration. The proposed approach also improves voltage profiles, reduces line loading, and enhances overall distribution system performance.
Co-Authors Achmad Dian Ramadhan Adlan Bagus Pradana Afrida Nurul Ulfa Ahmad Adhiim Muthahhari Ahmad Hidayahtullah Aldila Fajar Alvin Harista Rahman Anna Nur Nazilah Chamim Atikah Surriani Khomarudin, Riki Mohammad Arsyad Raka Bagus Ramadoni Syahputra Rizal Zulfiqri Ahmad Syah Ridho Natiqoh