Garuda - Garba Rujukan Digital

Analisis Total Harmonic Distortion (THD) dan Arus Harmonik Akibat Penggunaan Lampu Hemat Energi (LHE) dan Light-Emitting Diode (LED) secara Kolektif Pada Jaringan Tegangan Rendah Silalahi, Eva Magdalena; Widodo, Bambang; Purba, Robinson
Jurnal Fokus Elektroda : Energi Listrik, Telekomunikasi, Komputer, Elektronika dan Kendali) Vol 6, No 1 (2021): Jurnal Elektroda Vol 6 No 1
Publisher : Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33772/jfe.v6i1.16044

Currently, people are increasingly using energy saving lamp (LHE) and LED because of their energy saving and low power consumption. But the use of LHE and LED in large quantities can reduce the quality of electric power. This is because LHE and LED are classified as non-linear loads which are a source of harmonic distortion for low-voltage power lines. Harmonic distortion occurs due to non-linear load currents that experience distortion or defects. Based on this, this study aims to investigate the effect of the collective use of LHE and LEDs on the quality of electrical power, such as: harmonic levels, power factor, and the resulting harmonic current and voltage waveforms. The results of this study indicate that the simultaneous use of LHE and LED with a total of 60 pieces causes distortion of the current waveform with THDi of 63.97% exceeding the standard value of IEEE Std 519-2014, with dominant harmonic currents in the 3rd order with a THDi of 74% and order 5 with a THDi of 37.6% and a THDv value of 2.44%, still below the 5.0% standard of IEEE Std 519-2014. This high THDi value has a negative impact on the low PF value of 0.722, which does not meet the power factor requirements of â‰¥ 0.85 according to PLN standards. And if the true power factor (TPF) value is calculated, the TPF value is 0.608 which is lower than the PF value of 0.722. The results obtained from the Matlab simulation show conformity to the results obtained from experimental measurements in the laboratory, namely: the simulated harmonic waveform approximates the measured harmonic waveform.

Analisis Total Harmonic Distortion (THD) dan Arus Harmonik Akibat Penggunaan Lampu Hemat Energi (LHE) dan Light-Emitting Diode (LED) secara Kolektif Pada Jaringan Tegangan Rendah Silalahi, Eva Magdalena; Widodo, Bambang; Purba, Robinson
Jurnal Fokus Elektroda : Energi Listrik, Telekomunikasi, Komputer, Elektronika dan Kendali) Vol 6, No 1 (2021): Jurnal Elektroda Vol 6 No 1
Publisher : Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33772/jfe.v6i1.16044

Currently, people are increasingly using energy saving lamp (LHE) and LED because of their energy saving and low power consumption. But the use of LHE and LED in large quantities can reduce the quality of electric power. This is because LHE and LED are classified as non-linear loads which are a source of harmonic distortion for low-voltage power lines. Harmonic distortion occurs due to non-linear load currents that experience distortion or defects. Based on this, this study aims to investigate the effect of the collective use of LHE and LEDs on the quality of electrical power, such as: harmonic levels, power factor, and the resulting harmonic current and voltage waveforms. The results of this study indicate that the simultaneous use of LHE and LED with a total of 60 pieces causes distortion of the current waveform with THDi of 63.97% exceeding the standard value of IEEE Std 519-2014, with dominant harmonic currents in the 3rd order with a THDi of 74% and order 5 with a THDi of 37.6% and a THDv value of 2.44%, still below the 5.0% standard of IEEE Std 519-2014. This high THDi value has a negative impact on the low PF value of 0.722, which does not meet the power factor requirements of â‰¥ 0.85 according to PLN standards. And if the true power factor (TPF) value is calculated, the TPF value is 0.608 which is lower than the PF value of 0.722. The results obtained from the Matlab simulation show conformity to the results obtained from experimental measurements in the laboratory, namely: the simulated harmonic waveform approximates the measured harmonic waveform.

Pengaruh Jumlah Bilah dan Sudut Pasang terhadap Daya Turbin Angin Poros Vertikal Tipe H-Darrieus Termodifikasi sebagai Energi Alternatif Pembangkit Tenaga Listrik Skala Rumah Tangga Susilo Susilo; Bambang Widodo; Eva Magdalena Silalahi; Atmadi Priyono
Jurnal Energi Dan Manufaktur Vol 12 No 2 (2019)
Publisher : Department of Mechanical Engineering, University of Udayana

Bentuk sudu taper linier merupakan bentuk sudu yang paling optimal untuk kecepatan angin yang rendah. Jumlah sudu yang baik untuk kecepatan angin rendah berkisar antara 3-7 buah sudu, namun desain sudu dengan menggunakan airfoil dan profil pada sudut pasang sudu yang bagaimana memberikan daya keluaran dan tegangan keluaran yang optimal. Turbin angin didesain dengan 2 bilah dan 4 bilah dengan sudut pasang yang bisa diatur untuk mendapatkan perbedaan daya optimal masing-masing desain. Pengujian dilakukan di 3 area berbeda untuk mendapatkan gambaran geografis kondisi angin yang berbeda khususnya masalah kecepatan angin di ksiaran 2 m/s - 7 m/s. Pengujian dilakukan dengan luas penampang turbin angin (A) sebesar 3m2 Hasil penelitian menunjukkan bahwa nilai terbaik diperoleh pada kecepatan angin maksimal 4 m/s dan jumlah blade 4 sedangkan untuk nilai terkecil diperoleh pada kecepatan angin 3 m/s dan jumlah blade 2 yaitu. Untuk nilai TSR maksimal pada kecepatan maksimal 4 m/s terjadi pada jumlah blade 4, sedangkan untuk nilai terendah pada kecepatan angin 3 m/s dihasilkan pada jumlah blade 2. Melalui pengukuran berbasis teknologi smart monitoring system, dari penelitian diperoleh semakin tinggi kecepatan angin maka tegangan keluaran semakin tinggi. Semakin tinggi tegangan keluaran, semakin tinggi daya keluaran pada generator. Sudut pasang ? dan jumlah sudu mempengaruhi kecepatan putaran rotor turbin angin. Kecepatan putaran rotor turbin angin berelasi dengan tegangan keluaran generator. pada sudut pasang ? dan jumlah sudu 4, diperoleh daya keluaran yang sebesar 150 watt namun pada kecepatan angin 7 m/s daya turbin yang dihasilkan mencapai 600 watt. Dengan kondisi ini cukup memenuhi untuk alternatif cadangan listrik skala rumah tangga khusunya di pedesaan dan daerah terpencil (rural area). The linear taper blade shape is the most optimal blade shape for low wind speeds. The number of blades that are good for low wind speeds ranges from 3-7 blades, but the blade design uses an airfoil and profile on the blade mounting angle which is how to provide optimal output power and output voltage. Wind turbines are designed with 2 blades and 4 blades with adjustable tide angles to get the difference in the optimal power of each design. Tests were carried out in 3 different areas to obtain a geographical description of different wind conditions, especially the problem of wind speed in the range of 2 m / s - 7 m / s. Tests carried out with a cross section area of wind turbines (A) of 3m2 The results showed that the best value was obtained at a maximum wind speed of 4 m / s and number 4 blade while the smallest value was obtained at wind speeds of 3 m / s and number 2 blades namely. For the maximum TSR value at a maximum speed of 4 m / s occurs in the number of 4 blades, while for the lowest value at 3 m / s wind speed is produced on the number of blades 2. From the research, the higher the wind speed, the higher the output voltage. The higher the output voltage, the higher the output power at the generator. The ? tide angle and number of blades affect the speed of the wind turbine rotor rotation. The rotational speed of the wind turbine rotor is related to the generator output voltage. at the tide angle ? and number of blades 4, the output power of 150 watts is obtained but with wind speed 7 m/s turbine power 600 watt achieved. With this condition, it is sufficient for alternative household electricity reserves, especially in rural and remote areas (rural areas).

Tinjauan Pembangkit Listrik Tenaga Bayu sebagai Sumber Daya Utama Menggantikan PLN dan Genset terhadap Energy Security pada Infrastruktur di Pulau Terpencil/Terluar Judo Ignatius Nempung; Eva Magdalena Silalahi; Edward Baringin Oloan Sihite; Stepanus Stepanus
Jurnal Pendidikan dan Konseling (JPDK) Vol. 5 No. 2 (2023): Jurnal Pendidikan dan Konseling
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jpdk.v5i2.13567

Listrik memiliki peran penting sebagai sumber daya infrastruktur telekomunikasi selular (BTS) dalam menjamin kontinuitas penyediaan telekomunikasi antar pelanggan karena bisa berdampak pada kerugian baik bagi pihak operator maupun pelanggan. Listrik dari PLN yang setiap harinya shutdown selama 2 jam menjadi masalah penting dan harus dicarikan alternatif konfigurasi hybrid sumber daya listriknya. Sumber daya existing dirasa masih kurang dari segi ketahanan energi BTS system. Namun sumber listrik juga memiliki peran penting dan strategis dalam pembangunan berkelanjutan dengan memperhatikan aspek sosial, ekonomi dan lingkungan. Hal tersebut dapat dilihat dalam peraturan pemerintah No. 79 Tahun 2014 tentang kebijakan Energi Nasional (KEN). Alternatif konfigurasi pengganti disajikan untuk mencari konfigurasi lebih baik dengan mengutamakan penggunaan energi terbarukan seperti PLTB. 3 elemen dan dimensi 4A digunakan untuk menentukan alternatif terbaik disamping alternatif usulan utama yang menggunakan PLTB sebagai sumber daya utama. Aspek ekonomi dan lingkungan akan diperlihatkan juga untuk mengetahui perbedaan semua alternatif termasuk yang existing. Kalkulasi menggunakan persamaan HHI untuk mencari indeks tunggal power sharing sumber daya listrik dan persamaan normalisasi untuk mencari nilai min –max indikator relatif setiap konfigurasi. Bobot masing-masing indikator relatif dibuat rata atau berbobot sama karena tidak ada penekanan pada indikator tertentu. Hasil dengan ketahanan energi terbaik dapat dilihat pada angka energy security index terbesar yang diperlihatkan pada tabel.

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

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).

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

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

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.

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. 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%.

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

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

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

Title

Found 23 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 23 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 23 Documents
Search