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Lektrokom: Jurnal Ilmiah Program Studi Teknik Elektro
Published by Universitas Kristen Indonesia
ISSN : -     EISSN : 26861534     DOI : https://doi.org/10.33541/lektrokom.v4i1
Core Subject : Science, Engineering,
Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering
Jurnal Lektrokom berisi makalah paper/karya ilmiah dosen, mahasiswa yang terkait dengan Bidang Energi Terbarukan, Control System, ICT, Telecommunication, Smart Energy System yang diterbitkan secara resmi pada Bulan September 2019 oleh Program Studi Teknik Elektro FT UKI. Tujuan Jurnal diterbitkan adalah untuk Publikasi Karya Ilmiah Dosen dan Mahasiswa dengan bidang spesifik Teknik Tenaga Listrik & Teknik Kontrol. Sedangkan cakupan atau fokus masalah yang dicakup adalah Energi Terbarukan, Sistem Kontrol & Cerdas, Smart Grid. Untuk penerbitan jurnal adalah 2 kali dalam setahun yaitu di bulan Maret dan September.
Arjuna Subject : Energi (semua kategori) - Energi Terbarukan, Keberlanjutan dan Lingkungan
Articles 44 Documents
 1   2   3   4   5 
Perancangan Pembangkit Listrik Mikrohidro 30 Kw Untuk Suplai Listrik Area Wisata di Desa Girimulyo Ngargoyoso, Karang Anyar, Jawa Tengah Ridwan Leksana; Bambang Widodo; Eva Magdalena Silalahi; Judo Ignatius Nempung
Lektrokom : Jurnal Ilmiah Teknik Elektro Vol. 6 No. 1 (2023): Jurnal Lektrokom Volume 6 No. 1, Maret 2023
Publisher : Prodi Teknik Elektro FT UKI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/lektrokom.v6i1.5004

Abstract

describe a power plant that employs the flow of water as its source of propulsion. An investigation must be conducted on the subject, specifically water, in order to gain an understanding of its potential prior to beginning the design process for a micro hydro producing unit. The micro hydro power plant in the village of Girimulyo serves as both a source of electricity and a popular tourist and educational destination for the community. Data were gathered from the observations, including the water discharge (Q=0.2 m3/s) and the head/height of falling water (H=22.09 m). obtaining information depending on flow rate and heightof the falling water may already be determined, allowing the Pelton type Micro Hydro turbine to be selected as the drive unit. whereas the 30kW turbine is intended to produce electricity. The major parts of the Pelton type turbine were constructed with wheel diameter D = 448mm, number of nozzles 2, shaft diameter d = 38mm, and gearbox based on the results of the data obtained. flat belt having a 1:1 transmission ratio.
Analisa Harmonisa Dan Simulasi Filter Aktif Shunt Pada Base Transceiver Station (BTS) Di Gedung Prodi Teknik Mesin Fakultas Teknik Universitas Kristen Indonesia (UKI) Jakarta Menggunakan Matlab Simulink David Melanius Nai; Eva Magdalena Silalahi; Robinson Purba
Lektrokom : Jurnal Ilmiah Teknik Elektro Vol. 6 No. 1 (2023): Jurnal Lektrokom Volume 6 No. 1, Maret 2023
Publisher : Prodi Teknik Elektro FT UKI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/lektrokom.v6i1.5121

Abstract

Di era modern ini elektronika daya banyak digunakan dalam peralatan listrik yang cenderung bersifat tidak linear, mengakibatkan gelombang arus tidak sama dengan gelombang tegangan. Penelitian ini bertujuan untuk mengetahui harmonisa yang ditimbulkan oleh BTS yang mencakup tingkat distorsi harmonisa tegangan dan arus akibat pemakain energi listrik pada BTS. Penelitian dilakukan terhadap BTS di Gedung Program Studi Teknik Mesin Fakultas Teknik UKI, Jakarta. Berdasarkan penelitian yang dilakukan pada BTS ditemukan bahwa Total Harmonic Distortion Voltage (THDV) untuk fasa R, S dan T sebesar 1,62%, 1,39% dan 1,34% yang masih memenuhi standar IEEE 519-2014, sedangkan nilai Total Harmonic Distortion Current (THDI) untuk fasa R, S dan T sebesar 6,20%, 5,93% dan 5,57% yang tidak memenuhi standar IEEE 519-2014,dengan harmonisa dominan terjadi pada orde ke-3. Berdasarkan hasil simulasi rancangan filter aktif shunt menggunakan matlab, diperoleh nilai THDI sesudah menggunakan filter aktif shunt untuk fasa R, S dan T bernilai 0,15%, 0,68% dan 0,59% yang telah memenuhi standar IEEE 519-2014, serta nilai harmonisa arus dominan menunjukan bahwa orde ke-3 juga memenuhi standar IEEE 519-2014, dengan tingkat harmonisa sebesar 0,01%, 0% dan 0,01% untuk fasa R, S, dan T
Analisis Pembangkit Listrik Tenaga Surya (PLTS) Sistem On - Grid Untuk Memenuhi Kebutuhan Listrik Base Transceiver Station (BTS) di Desa Sabi Samukop Kepulauan Mentawai Riyan siyentanu mareat Sakeru; Eva Magdalena Silalahi; Robinson Purba
Lektrokom : Jurnal Ilmiah Teknik Elektro Vol. 6 No. 1 (2023): Jurnal Lektrokom Volume 6 No. 1, Maret 2023
Publisher : Prodi Teknik Elektro FT UKI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/lektrokom.v6i1.5133

Abstract

PLTS is a renewable energy source because it uses solar power as its energy source. Solar photovoltaic captures the sun's heat and converts it into electrical energy which can be stored in batteries and can also be used directly. The PLTS system used in this study is an on-grid hybrid system, by utilizing excess PLTS energy to be sold to the PLN grid. From the results of data analysis and simulation of the HOMER software that has been carried out, it is obtained that the electrical energy needed by the BTS is 3.96 kWh/day and the PLTS capacity is 1.3 kW with a production of electrical energy of 5.06 kWh/day. Based on the scenario or configuration of the on-grid hybrid PLTS system without batteries with a Net Present Cost (NPC) value of IDR 56,948,220.00, Levelized Cost of Energy (LCOE) IDR 1,144.39/kWh and Break Even Point (BEP) is reached after 3.3 years of project operation. Based on the simulation results, in terms of the economy and the electrical energy produced by the on-grid hybrid PLTS without batteries, it is considered appropriate to meet the electricity needs of BTS Saibi Samukop Village in the Mentawai Islands.
Alat Pendeteksi Hambatan Untuk Penyandang Disabilitas Tunanetra Susilo, Susilo; Paluruan, William; Widodo, Bambang
Lektrokom : Jurnal Ilmiah Teknik Elektro Vol. 5 No. 1 (2022): Jurnal Lektrokom Volume 5 No. 1, September 2022
Publisher : Prodi Teknik Elektro FT UKI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/lektrokom.v5i1.5134

Abstract

Walking aids for people with visual impairments today still have many weaknesses, therefore it is necessary to develop technology that can help blind people move from place to place. This test was carried out with the aim of building a road tool design tool using a water sensor using the rain sensor module and the HC-SR04 Ultrasonic Sensor located in front, left, and right as well as testing the accuracy of the sensor and the success of the tool. The tool is designed using 3 Ultrasonic sensors HC-SR04, Arduino Pro Mini, DF Player Mini, TP4056 Charger Module, Rain Sensor Module, and a Speaker. The instrument was researched to be able to read a distance of 2cm to 150cm for the front, 2-75cm for the left, and 2-75cm for the right. In addition to distance testing, the tool is also tested to read any objects that can be detected and to test the water sensor which is 1.5cm higher than the surface of the tip of the stick. The output of the device is a sound recording issued by the speaker. The results of the research tool have a fairly high level of accuracy if the distance is <30cm from the obstacle while if it is more than >30cm the accuracy level of the tool decreases.
Analisa Deret Fourier Harmonisa Yang Dihasilkan Komputer Dan Laptop Menggunakan Simulasi Matlab/Simulink Frensius; Silalahi, Eva Magdalena; Purba, Robinson
Lektrokom : Jurnal Ilmiah Teknik Elektro Vol. 6 No. 2 (2023): Jurnal Lektrokom Volume 6 No. 2, September 2023
Publisher : Prodi Teknik Elektro FT UKI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/lektrokom.v6i1.5136

Abstract

Harmonics are multiples of the base frequency (50 Hz) in electrical energy systems, resulting from increased use of nonlinear loads in industry, offices, education and households, resulting in increased harmonic distortion in distribution networks. Computers and laptops are nonlinear loads that are a source of harmonic currents in electrical systems and are widely used by the public. High harmonics can damage electrical equipment. This study discusses harmonic problems caused by computers and laptops of different brands, in order to know the values of THDv, THDi, dominant order THDi, current harmonic wave equations and current waveforms. To conduct this study, PQA Kyoritsu KEW 6315 measurement data was analyzed using the Fourier series method and then a simulation of FFT Matlab Simulink was carried out. The results of this study show that the THDv values on computers and laptops of different brands, as a whole meet the IEEE 519-2014 standard, while the THDi values range from 80% to 86.96% which do not meet the IEEE 519-2014 standard. The dominant harmonic current order generated by computers and laptops of different brands has the same trend pattern in the dominant harmonic current order that occurs in the 3rd, 5th, 7th and 9th order, where the 3rd order has the highest dominant THDi value with a range of values between 40% to 52.17%. Also obtained is the wave equation of harmonic currents generated by computers and laptops using the Fourier series based on the same order of dominant harmonic currents from the measurement results, namely in the 1st, 3rd, 5th, 7th, and 9th order.
Analisa Harmonisa Pada Base Tranciever Station (BTS) Di Gedung Prodi Teknik Mesin Fakultas Teknik Universitas Kristen Indonesia (UKI) – Jakarta FILIP DONATAL Filip; Eva Magdalena Silalahi; Robinson Purba
Lektrokom : Jurnal Ilmiah Teknik Elektro Vol. 6 No. 1 (2023): Jurnal Lektrokom Volume 6 No. 1, Maret 2023
Publisher : Prodi Teknik Elektro FT UKI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/lektrokom.v6i1.5146

Abstract

The current development of telecommunications technology has reached 4G LTE technology, and some have even implemented 5G technology. One of the infrastructures that supports the advancement of telecommunication technology is the BTS. Components in BTS include, rectifier, microwave link, BTS radio equipment, air conditioner (AC). This component belongs to the category of nonlinear electrical loads which cause harmonic problems in BTS. Therefore, it is necessary to measure the harmonic level at each BTS for a study that includes the level of voltage and current harmonic distortion due to nonlinear components in BTS including BTS in the Mechanical Engineering Study Program Laboratory Building, Faculty of Engineering, UKI Jakarta. Based on the harmonic measurements carried out on this BTS, the results obtained are: BTS has a total current distortion value, THDi of 10.16% which exceeds the IEEE 519-2014 standard. The total value of voltage distortion, THDv is 1.11%, which still meets the IEEE 519-2014 standard. The dominant THDi value in BTS occurs in the 3rd order with a THDi of 8.7% and the 5th order with a THDi of 4.2% exceeding the 4% limit of the IEEE 519-2014 standard.
Perancangan Pembangkit Listrik Tenaga Surya On-Grid Di Gedung Lembaga Penelitian Dan Pengabdian Kepada Masyarakat UKI-Jakarta Menggunakan Aplikasi PVSyst Tukan, Blasius Rum; Widodo, Bambang; Purba, Robinson
Lektrokom : Jurnal Ilmiah Teknik Elektro Vol. 6 No. 2 (2023): Jurnal Lektrokom Volume 6 No. 2, September 2023
Publisher : Prodi Teknik Elektro FT UKI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/lektrokom.v6i2.5160

Abstract

The PLTS designed in the LPPM UKI-Jakarta building is an on-grid PLTS with the aim of lowering electricity bills. In analyzing this design, both from a technical and economic perspective, the PVSyst application tool was used. The intensity of solar radiation at the study site is 1654.1 kWh/m2 per year and the electrical energy that can be generated is 17,726 kWh/year using solar modules, a capacity of 10,675 Wp. Savings in the cost of paying for electricity using PLTS amounted to IDR 15,953,400 and the break even point of PLTS is 9.64 years, calculated after construction has been carried out. The construction of this PLTS also reduces CO2 emissions in Jakarta, due to the use of electricity from fossil fuels by 158.1 tons for 25 years. Based on the simulation results and engineering economic calculations from the PLTS being built, a reduction in the cost of using electricity was found to be 50% of the total cost of paying for electricity each year.
Perancangan Pembangkit Listrik Tenaga Surya (PLTS) Sistem On-Grid Berbasis Homer Untuk Memenuhi Energi Listrik Di Sekolah Menengah Pertama Negeri (SMPN) 1 Teriak, Bengkayang Kalimantan Barat Jenni Lisdawati; Silalahi, Eva Magdalena; Purba, Robinson
Lektrokom : Jurnal Ilmiah Teknik Elektro Vol. 5 No. 1 (2022): Jurnal Lektrokom Volume 5 No. 1, September 2022
Publisher : Prodi Teknik Elektro FT UKI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/lektrokom.v5i1.5162

Abstract

PLTS designed in the SMPN 1 Teriak building, Bengkayang, West Kalimantan with a power of 6600 W, is an on-grid PLTS with the aim of reducing electricity bills. In this design and analysis of the design results, both from the technical and economic sides, the Homer application is used. Based on the analysis of the design, the results were obtained, namely, the capacity of the On-Grid PLTS system is 0.250 kW / module with the number of Photovoltaic (PV) modules 27 units and 3 inverter units, the total cost of the two components is Rp. 130,397,740. The need for electrical power per day is 14,500 Wh or 14.5 kWh. The On-Grid solar system produces electrical energy of 9,969 kWh per year (65.5%), while the electrical energy produced by the Grid reaches 5,254 kWh / day (34.5%) with a total electrical energy production of 15,223 kWh per year (100%). Homer's simulation results also showed that the Net Present Cost (NPC) value of the PLTS+Grid system was Rp.36,064,610 and the Levelized Cost of Electricity (LCOE) value of the PLTS+Grid system was Rp.189.47/kWh lower than the LCOE value of the Grid system. And the length of payback for the Break Event Point (BEP) PLTS+Grid system is 5.36 years.
PEMODELAN DAN SIMULASI ON-GRID PHOTOVOLTAIC DENGAN GRID-TIED INVERTER MENGGUNAKAN MATLAB/SIMULINK Sungkalang, Sripanus Sungkalang; Silalahi, Eva Magdalena; Widodo, Bambang
Lektrokom : Jurnal Ilmiah Teknik Elektro Vol. 6 No. 2 (2023): Jurnal Lektrokom Volume 6 No. 2, September 2023
Publisher : Prodi Teknik Elektro FT UKI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/lektrokom.v6i2.5164

Abstract

Solar power plants are one of the environmentally friendly renewable energy generators because they utilize sunlight, which can be absorbed by photovoltaic (PV). The purpose of this study is to create and analyze on-grid photovoltaic modeling and simulation using a grid-tie inverter based on MATLAB/Simulink, and then to analyze the quantity of PV electricity based on real time data of solar irradiation and temperature. Based on the modeling and simulation results, the characteristics of the on-grid PV system are obtained, namely: constant V, I and P waveforms in the form of straight lines on 1 100 Wp PV module, at a constant value of 1000 W/m2 solar irradiation and a temperature of 25°C, with V = 18V, I = 5.55A, and P = 100W. On 10 PV modules with solar irradiation values and real time temperatures, the V, I and P waveforms were obtained following the solar irradiation pattern, with Vmax = 34.91V, Imax = 26.92A and Pmax = 939.7W at 11.00-12.00 noon, when the peak solar irradiation reaches 954 W/m2. It is also obtained that the maximum PV power is 940 W at 11.00 – 12.00 noon and the average power is 291 W. The peak power of the grid is 1.185 W, with an average power of 588 W. The peak load of electricity consumption is 1.128 W at 08.00 at night, with load power average 596 W. Overload PV = 1950 W.
Analisa Harmonisa Dan Simulasi Filter Pasif Pada Kawat Netral BTS Di Gedung Prodi Teknik Mesin Fakultas Teknik Universitas Kristen Indonesia Malau, Jekson Supardi; Silalahi, Eva Magdalena; Purba, Robinson
Lektrokom : Jurnal Ilmiah Teknik Elektro Vol. 6 No. 2 (2023): Jurnal Lektrokom Volume 6 No. 2, September 2023
Publisher : Prodi Teknik Elektro FT UKI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/lektrokom.v6i2.5168

Abstract

This research was conducted on BTS in the Mechanical Engineering Study Program Building, Faculty of Engineering, UKI, Jakarta with the aim of knowing the harmonics on the neutral wire of BTS which includes the level of voltage and current distortion due to the use of non-linear electrical components in BTS. In this study, the standard used as a reference is the IEEE 519-2014 standard. Based on the results of the research conducted, it was found that the Total Harmonic Distortion Current (THDi) at BTS was 224.72% and did not meet the standards. The dominant harmonic currents are 3rd order with 219.02% THDi and 9th order with 47.56% THDi which exceed the IEEE 519-2014 standard limits. And Total Harmonic Distortion Voltage (THDv) is 1.59% and meets the standard. The simulation results of a single tuned LC passive filter can reduce the THDi level of the current flowing in the BTS by 217.66% using Matlab/Simulink software. The current flowing in the neutral wire is based on a measurement of 1.1 amperes with a THDi value of 224.72%, and after being filtered, the THDi drops to 7.06%, but still does not meet the standard. The dominant harmonic currents flowing in the neutral wire are 3rd order with 219.02% THDi and 9th order with 47.56% THDi, which exceed the standard limit and 1.59% overall THDv.

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