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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
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DESAIN TIGA FASE UNIFORM PULSE-WIDTH MODULATION (UPWM) DENGAN DSPICC30F4011 GUNA MENGATASI DIP TEGANGAN DAN INTERUPSI stepanus stepanus; Eva Magdalena Silalahi; Jalius Salebay
Lektrokom : Jurnal Ilmiah Teknik Elektro Vol. 1 No. 1 (2018): Jurnal Lektrokom Volume 1 Oktober 2018
Publisher : Prodi Teknik Elektro FT UKI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/lektrokom.v1i1.3311

Abstract

Sistem tenaga listrik merupakan sebuah aset yang vital dalam kehidupan sehari-hari, sehingga penggunaan elektronika daya atau konverter sudah menjadi hal yang biasa. Pada umumnya konverter dibagi menjadi dua yaitu konverter sumber tegangan dan konverter sumber arus. Konverter membutuhkan sinyal pemicuan yang dibangkitkan secara analog maupun digital agar dapat bekerja. Teknik pemicuan terus berkembang hingga saat ini, pemakaian mikrokontroller digunakan guna mengganti pemicuan analog agar lebih stabil gelombang keluarannya. DsPIC30f4011 adalah mikrokontroller yang terspesifikasi khusus yang mendukung pembangkitan sinyal UPWM tiga fasa, diantaranya pengaturan dead time, complementary mode dan center aligned mode. Dalam penelitian ini dirancang inverter full bridge tiga fasa dengan teknik pemicuan UPWM berbasis mikrokontroller dsPIC30f4011 dan pembangkitan sinyalnya dilakukan melalui senarai program. Sinyal carrier dirancang 10 kHz dengan indeks modulasi (ma) dapat diatur pada rentang nilai 0 ≤ ma ≤ 1 dan frekuensi sinyal referensi pada nilai 0 – 50 Hz. Bentuk gelombang tegangan output VLL yang dihasilkan divariasikan secara linier terhadap indeks modulasi pada rentang frekuensi 0 – 50 Hz. Nilai LVUR dan IUR (rasio ketidakseimbangan tegangan dan arus).
Analisis Ketahanan Energi Pembangkit Listrik Tenaga Sampah (PLTSa) Metode Landfill dan Thermal di Tempat Pembuangan Sampah Terpadu (TPST) Bantar Gebang Benny Tuahta Bangun; Robinson Purba; Hakimul Batih; stepanus stepanus
Lektrokom : Jurnal Ilmiah Teknik Elektro Vol. 2 No. 1 (2019): Jurnal Lektrokom Volume 2, Oktober 2019
Publisher : Prodi Teknik Elektro FT UKI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/lektrokom.v2i1.3313

Abstract

The problem facing by city of Jakarta today is the increasing volume of waste, reaching 7,000 tons per day sent to Bantar Gebang TPST which is currently not handled properly. The purpose of this research was to analyze the application of Landfill and Thermal Waste Power Plant (PLTSa) in Bantar Gebang TPST from the perspective of Energy Security by measuring Energy Supply Security Index (ESSI) using 4 dimensions and 5 approach indicators : Availability (Indicator: Working hour per year), Accessability (Indicator: Access to technology), Affordability (Indicator: Cost of generation per kWh) and Acceptability (Indicator: Avoided CO2 Emission kg per MWh and percentage reduction in waste volume per day). Energy security analysis results are obtained: aspects of availability with working hour indicators per year: PLTSa Landfill = 0.95, PLTSa Thermal = 0.98; aspects of accessibility with ease of technology access indicators: PLTSa Landfill = 0.74, PLTSa Thermal = 0.58; affordability aspects with indicators of the cost of electricity generation: PLTSa Landfill = 0.99, PLTSa Thermal = 0.983; aspects of accessability with two indicators, avoided (CO2) emission: PLTSa Landfill = 1.0, PLTSa Thermal = 0.14, and the percentage of waste reduction: PLTSa Landfill = 0.50, PLTSa Thermal = 0.85.
ANALISIS PERBANDINGAN PENGHEMATAN KONSUMSI ENERGI LISTRIK DAN PERENCANAAN PEMBANGKIT LISTRIK TENAGA HYBRYD MENUJU LOW ENERGY BUILDING PADA HOTEL MERCURE PONTIANAK DAN HOTEL IBIS STYLES BANDARA SOEKARNO HATTA JAKARTA Teddy Gama Silalahi; Stepanus Stepanus; Bambang Widodo
Lektrokom : Jurnal Ilmiah Teknik Elektro Vol. 2 No. 1 (2019): Jurnal Lektrokom Volume 2, Oktober 2019
Publisher : Prodi Teknik Elektro FT UKI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/lektrokom.v2i1.3314

Abstract

In the current era of technological and information advancements, the growth of industry and business is becoming faster and faster. But this also encourages higher energy use and makes energy use a major contribution to operational costs that must be spent. This study aims to conduct a comparative analysis of Energy Consumption Intensity (IKE) at the Mercure Pontianak Hotel and the Ibis Styles Hotel SoekarnoHatta Airport Jakarta. The method used in this study is the Survey and Literature Study methods. Primary data is obtained from the 2018 Electricity Bill. The data is then used to calculate the Energy Consumption Intensity and then a simulation of energy savings using solar solar with Homer software simulation. The results showed that the IKE in the Mercure Pontianak Hotel building is bigger than the Ibis Styles Hotel SoekarnoHatta Airport which is 323,390 kWh / m2 / year meaning the energy usage in the Mercure Pontianak Hotel building is greater than the Ibis Styles Hotel SoekarnoHatta Airport Jakarta building with a difference of 79,389 kWh / year with a building age difference of +/- 5 years older Mercure Pontianak Hotel while the building area and number of rooms are almost the same. The simulation results of using solar cells obtained energy production of 221,866 kWh per year at a cost of Rp. 972 / kWh, meaning energy savings of 6-8% a year.
Analisis Perencanaan dan Kajian Ekonomi dalam Penggunaan PV Menuju Low Energy Building Pada Hote Inaya Putri Bali Fendy Eventius Mugni; Bambang Widodo; Stepanus Stepanus
Lektrokom : Jurnal Ilmiah Teknik Elektro Vol. 3 No. 1 (2020): Jurnal Lektrokom Volume 3, Oktober 2020
Publisher : Prodi Teknik Elektro FT UKI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/lektrokom.v3i1.3315

Abstract

Industrial and business growth develops rapidly from time to time. This also encourages higher energy use and energy use is a major contributor to operational costs. This study aims to carry out planning and economic studies in the use of PV towards a low-energy building at Hote Inaya Putri Bali. The method used in this research is the survey method and literature study. Primary data is obtained from the 2019 Electricity Bill. The data is then used to calculate the Intensity of Energy Consumption, then taken from energy simulations using solar solar with Homer software simulations. The results showed that the IKE in the Inaya Putri Bali Hotel building was 131.8 kWh / m2 / year, meaning that energy use in the Inaya Putri Bali Hotel building was still efficient. Using the solar cell simulation results, the energy obtained is 443,732 kWh per year at a cost of Rp. 972 / kWh, which means energy savings of Rp. 35,942,292 per month or 14.5% per year.
Energi Angin Sebagai Sumber Daya Listrik Data Recovery Center Stepanus Stepanus; Iskandar Zulkarnaen; Arya Mirza; Fendy Eventius Mugni
Lektrokom : Jurnal Ilmiah Teknik Elektro Vol. 1 No. 1 (2018): Jurnal Lektrokom Volume 1 Oktober 2018
Publisher : Prodi Teknik Elektro FT UKI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/lektrokom.v1i1.3316

Abstract

Untuk mengurangi ketergantungan yang sangat besar terhadap energi fosil yang mulai habis, perlu pemanfaatan energi terbarukan yang berasal dari sumber lain yang bukan berasal dari fosil. Salah satu energi bukan fosil yang dapat dimanfaatkan adalah energi angin yang bisa diubah menjadi energi listrik. Dalam tulisan ini energi listrik tersebut digunakan sebagai sumber daya listrik bagi data recovery center (DRC). DRC ini adalah tempat penyimpanan data cadangan dari Data Center, yang merupakan pusat penyimpanan data dengan server yang beroperasi 24 jam sehari, tujuh hari seminggu dan harus berada dalam kondisi lingkungan yang terkendali, hal tersebut menjadikan Data Center dan DRC sebagai salah satu pengguna listrik terbesar di dunia. DRC merupakan tuntutan dari kemajuan teknologi informatika yang menuntut tersedianya penyimpanan data yang besar dan aman, dimana syarat utama DRC adalah letaknya sebaiknya cukup jauh dari ibukota/kota besar sehingga fungsinya sebagai pusat cadangan data terpenuhi sewaktu Data Center terkait mengalami bencana (banjir, gempa bumi, dll) serta diperlukannya tenaga listrik yang stabil untuk menjaga data yang disimpan tetap aman. Dalam tulisan ini akan dibahas potensi energi angin yang bisa diubah menjadi energi listrik dan digunakan sebagai sumber daya listrik Data Recovery Center (DRC) di wilayah Pandeglang, Jawa Barat. Adapun penelitian yang dilakukan adalah melalui studi pustaka, informasi teknis turbin dan informasi teknis mengenai kecepatan angin di Indonesia yang didapat dari jaringan internet.
RANCANG BANGUN SISTEM PENGUKURAN SUHU TUBUH MANUSIA OTOMATIS TANPA KONTAK FISIK DENGAN SENSOR SUHU MLX90614 BERBASIS ARDUINO UNO PADA BILIK DISINFEKTAN Rizki Pardamean Sinaga; Susilo Susilo; Bambang Widodo
Lektrokom : Jurnal Ilmiah Teknik Elektro Vol. 3 No. 1 (2020): Jurnal Lektrokom Volume 3, Oktober 2020
Publisher : Prodi Teknik Elektro FT UKI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/lektrokom.v3i1.3317

Abstract

In the end of 2019, the world have been experiencing a pandemic event until today, the wide spread of coronavirus which is scientifically known as covid-19. One of the symptoms that emerges due to the spread of this virus is the human body is not in a normal temperature, which is more than 37.5°C. Therefore, the measurement of human body temperature is now a mandatory protocol in order to preventing the spread of the Covid-19 virus. This paper discusses about a tool that could measure the human body temperature without any physical contact is needed using The MLX90614 temperature sensor series based on Arduino Uno in the disinfectant booth. The type of sensor that is used in the manufacture of this tool is the MLX90614 temperature sensor, this sensor is known as a non-contact temperature sensor used in measuring the temperature of the human body without direct contact with the object. The purpose of making this tool is to make the measurement of human body temperature can be used in a faster way and to minimize a face-to-face contact with other human. This tool has an alarm that will work if the temperature is on ≥37.50C and then the alarm will be active for 10 seconds and if the temperature is <37.50C the alarm will be active for 1 second so that it’s able to detect people who are allowed or not allowed to enter the building, with a measurement distance of between 0.1 - 10 cm with accuracy level of 99.91%.
RANCANG BANGUN FILTER PASIF UNTUK MEREDUKSI TOTAL HARMONIC DISTORTION (THD) AKIBAT PEMAKAIAN LAMPU HEMAT ENERGI (LHE) DAN LIGHT EMITTING DIODE (LED) Alfronso Sinurat; Antonius Doddy Tyas Prasetyo; Eva Magdalena Silalahi; Bambang Widodo; Robinson Purba
Lektrokom : Jurnal Ilmiah Teknik Elektro Vol. 4 No. 1 (2021): Jurnal Lektrokom Volume 4, September 2021
Publisher : Prodi Teknik Elektro FT UKI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/lektrokom.v4i1.3318

Abstract

This paper discusses the design of a passive filter system for energy saving in Energy Saving Lamps (LHE) and Light Emitting Diode (LED), but for LHE and LED lamps for current Total Harmonic Distortion (THDi) that do not meet the standard. To reduce the current THD, it can be done by installing a single tune passive filter.””In this paper, we discuss the design of” a”passive filter system using a filter design with Matlab Simulink to determine the size of the components in filter design. To reduce the level of current harmonics, a single tune passive filter is designed which consists of an inductor and capacitor (LC) on the LHE and the LED.”Based on the research”data”that has been carried out,”the THDi measurement results for the lamp load test after using the filter are 49.12% for the LED circuit, 41.86% for the LHE circuit and 11.59% for the combined LED and LHE circuit.”Based on the results”of”each”measurement,”it can be seen that none have met the IEEE 519- 2014 standards. In this study, only using a filter tuned to the 3rd order, and based on the simulation results, it meets the IEEE 519-2014 standard, which is 1.11%.”The results of the design and testing of”tools (filters) show that they do not meet the IEEE 519-2014 standards, namely 11.59%.
TINJAUAN FLUKS CAHAYA, SUHU WARNA, TOTAL HARMONIC DISTORTION, FAKTOR DAYA LAMPU PIJAR, LAMPU HEMAT ENERGI DAN LIGHT EMITTING DIODE Mulya Haryanto; Eva Magdalena Silalahi; Bambang Widodo; Robinson Purba; Judo Ignatius Nempung
Lektrokom : Jurnal Ilmiah Teknik Elektro Vol. 3 No. 1 (2020): Jurnal Lektrokom Volume 3, Oktober 2020
Publisher : Prodi Teknik Elektro FT UKI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/lektrokom.v3i1.3349

Abstract

Requirements of energy in nowadays are directly proportional with human activities which use a lot of energy, especially for electrical energy, therefore, it is necessary to take energy saving measures such as lighting that use electronic devices with energy efficient. The latest lighting technology is used saving energy lamp (LHE) and light emitting diode (LED) which are designed to replace that use of incandescent lamps. The purpose of this research was to compare lamp based on light flux, colour temperature total harmonic distortion (THD) and power factor. The standard used for luminous lighting flux, the colour temperature standard of SNI 03-6575-2001 and THD using reference IEEE 519-2014.From the study has been done is obtained that level of lighting flux produced by LED type is bigger for twice than LHE type. The best colour temperature is LED with ratio value of 875oK/W. THD current for LHE and LED does not comply the standard, therefore THD current is smaller 4% - 7,3% from LED. The power’s factor produced by LHE and LED is 0.5 to 0.6.
RANCANG BANGUN PROTOTYPE TURBIN ANGIN GUNA MENENTUKAN PERBANDINGAN EFISIENSI YANG DIHASILKAN DARI JUMLAH BLADE 8 DAN JUMLAH BLADE 4 Sirdo Hasibuan; Susilo; Bambang Widodo; Robinson Purba
Lektrokom : Jurnal Ilmiah Teknik Elektro Vol. 1 No. 1 (2018): Jurnal Lektrokom Volume 1 Oktober 2018
Publisher : Prodi Teknik Elektro FT UKI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/lektrokom.v1i1.3367

Abstract

Dalam penelitian ini dirancang satu turbin dengan mengamati perbandingan jumlah sudu pada turbin terhadap ujuk kerja turbin seperti; daya dan efisiensi. Turbin terdiri dari blade dengan bentuk setengah silinder dengan luas penampang A = 0,246176 m2. Turbin angin ini didesain dengan diameter putar 170 cm dan perbandingan transmisi pada turbin dan generator yaitu 4:1. Hasil penelitian menunjukkan bahwa perbandingan jumlah sudu 8 dan 4, peforma terbaik dihasilkan oleh turbin angin jumlah sudu 8 dengan peningkatan 1,5 kali dibandingkan jumlah sudu 4. Kincir angin savonius dengan jumlah sudu 4 menghasilkan efisiensi paling tinggi sebesar 5% dan kincir angin savonius dengan jumlah sudu 8 menghasilkan efisiensi paling tinggi sebesar 10%. Pada kincir Angin Savonius sudu 4 tidak dapat berputar pada kecepatan angin rendah, hanya mampu berputar pada kecepatan angin angin ÷4 m/s . Hal ini diakibatkan karena celah antar sudu yang lebar, sehingga besarnya upwind dan downwind pada kincir sudu 4 sama besarnya. Daya Mekanik tertinggi Turbin angin savonius 8 sudu adalah 162, 85 watt dengan kecepatan angin 5,13 m/s pada percobaan tanpa beban dan daya mekanik terendah turbin angin savonius terjadi pada 4 bilah dengan beban sebesar 30,80 watt dengan kecepatan angin 3,71 m/s
PENGUKURAN TOTAL HARMONIC DISTORTION (THD) TERHADAP LAMPU HEMAT ENERGI (LHE) DAN LIGHT-EMITTING DIODE (LED) Fernando Jeremia Siahaan; Eva Magdalena Silalahi; Bambang Widodo; Robinson Purba
Lektrokom : Jurnal Ilmiah Teknik Elektro Vol. 3 No. 1 (2020): Jurnal Lektrokom Volume 3, Oktober 2020
Publisher : Prodi Teknik Elektro FT UKI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/lektrokom.v3i1.3372

Abstract

Abstract. Along with the rapid development of power electronics technology which is also useful for saving electrical energy. This technology is also used in lighting such as energy saving lamps (LHE) and light-emitting diode (LED). However, LHE and LED are non-linear loads that cause electrical power quality problems, namely producing voltage and current waveforms that are no longer sinusoidal or distorted waveforms. Distorted waves cause harmonic waves which have a frequency multiple of the fundamental frequency. The sum of the effective values of the harmonic components of the distorted waveform is calculated in terms of total harmonic distortion (THD). This study found that the THD value of the voltage generated by the LHE and LED loads was equal is 0.80% -1.3%, while the current THD generated by the LHE load was 68.57% - 78.68% and the LED was 72, 15% - 86.04%. The current THD value generated by the LHE and LED loads does not fulfil the IEEE Std 519-2014 harmornic distortion limits. The use of LHE and LED lamps simultaneously will reduce the resulting current THD value by 3% to 9%.

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