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All Journal Jurnal Energi Dan Manufaktur Jurnal Informatika dan Teknik Elektro Terapan Jurnal Fokus Elektroda : Energi Listrik, Telekomunikasi, Komputer, Elektronika dan Kendali Jurnal Pendidikan dan Konseling G-Tech : Jurnal Teknologi Terapan Fokus Elektroda: Energi Listrik, Telekomunikasi, Komputer, Elektronika dan Kendali) Lektrokom: Jurnal Ilmiah Program Studi Teknik Elektro Emitor: Jurnal Teknik Elektro
Eva Magdalena Silalahi
Program Studi Teknik Elektro Universitas Kristen Indonesia, Jakarta
Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mathematics Other

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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.
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.
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.
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.
Analisa Harmonisa Transformator Satu Fasa Berbeban Motor Arus Searah Melalui Rectifier Dan Simulasi Filter Pasif Berbasis MATLAB Di Laboratorium Program Studi Teknik Elektro Fakultas Teknik Universitas Kristen Indonesia Dangin, Helda Oktavianti; 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.v6i2.5172

Abstract

This study analyzed the harmonics of single-phase transformers loaded with Direct Current Motor (MAS) and rectifier using quantitative method approach. The purpose of this study was to identify the Total Harmonic Distortion (THDi) value in transformers and design passive filters to reduce harmonic levels if they do not meet the standards. The results showed that the measurement results, obtained THDi 31.01% in zero-load transformers, in transformers with MAS load with half-wave rectifiers, THDi by 79.35%, and in MAS load transformers with full-wave rectifiers, THDi by 46.40%, which exceeded IEEE 519-2014 standards. The results of the single tuned LC passive filter simulation showed that the MAS loaded transformer with a half-wave rectifier decreased harmonic level from the THDi value of 79.35% before using the filter, to 1.04% after using the filter and met IEEE 519-2014 standards. The harmonic level of MAS loaded transformer with full wave rectifier, before filtering, THDi 46.40%, but after filtering, THDi 37.98%, still exceeds IEEE 519-2014 standard.
PEMODELAN DAN SIMULASI PEMBANGKIT LISTRIK TENAGA BAYU SISTEM ON-GRID MENGGUNAKAN MATLAB SIMULINK Cristian, Yosep; Silalahi, Eva Magdalena; Widodo, Bambang
Lektrokom : Jurnal Ilmiah Teknik Elektro Vol. 7 No. 1 (2024): Jurnal Lektrokom Volume 7 No. 1, Maret 2024
Publisher : Prodi Teknik Elektro FT UKI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/lektrokom.v7i1.5248

Abstract

In this study, the authors analyzed the variables of research in the form of wind turbine mechanical power results based on wind speed varies, as well as the results of current, voltage and power of permanent magnet synchronous generators based on wind speed varies. This study aims to determine the results of mechanical power output in wind turbines, the power output of generators, and the efficiency of On-Grid Power Plant Systems. The method used in this study uses literature study method and associative method. Where the method of literature study to collect literature on wind power plants, associative method to determine the relationship of several variables studied. Based on the research conducted on the simulation, the mechanical power output of wind turbine at minimum wind speed (cut-in) 3.38 m/sec is 27.68 W and at maximum wind speed (rated) reaches 103.6 W, and the voltage, current and power generated by the generator at minimum speed is 75.29 V, 2.81 A, and 9.89 W, while at maximum wind speed reaches 75.37 V, 2.7 A, and 77.54 W. The maximum efficiency generated by On-Grid PLTB is 75% at a maximum wind speed of 7.63 m/sec.
ANALISIS ALIRAN DAYA PEMBANGKIT LISTRIK TENAGA SURYA (PLTS) ON – GRID 3540 Wp MENGGUNAKAN KWH METER DUA ARAH PADA LABORATORIUM TEKNIK MESIN, FAKULTAS TEKNIK UKI – JAKARTA DENGAN BEBAN MESIN PENCACAH SAMPAH 2 HP Menara Immanuel Situmorang; Nempung, Judo Ignatius; Soebagio, Atmonobudi; Silalahi, Eva Magdalena
Lektrokom : Jurnal Ilmiah Teknik Elektro Vol. 7 No. 1 (2024): Jurnal Lektrokom Volume 7 No. 1, Maret 2024
Publisher : Prodi Teknik Elektro FT UKI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/lektrokom.v7i1.6141

Abstract

The PLTS installed at the Mechanical Engineering Laboratory, Faculty of Engineering, UKI Jakarta is an On-Grid PLTS that plays a significant role in the development of technology and research in the fields of mechanical engineering and energy. The 2 HP waste shredder, used to recycle waste into reusable materials, is part of the efforts towards sustainability and efficient waste management. To support the operation of the waste shredder and reduce electricity costs, the laboratory has installed an On-Grid PLTS with a capacity of 3540 Wp. Based on power measurement data under no-load and load conditions with the 2 HP waste shredder, there was an energy export of 8 kWh and an energy import of 1 kWh over 11 hours. The power factor under no-load conditions was good, ranging from 0.96 to 1, which meets the standards set by PLN. However, the power factor when using the 2 HP waste shredder load ranged from 0.1 to 0.72, which does not meet PLN standards. The low power factor is due to the inductive load effect of the single-phase induction motor, such as that of the 2 HP waste shredder.
Analisa Harmonisa dan Faktor Daya Peralatan Listrik Rumah Tangga Pada Sistem Tegangan Rendah 220 V Eva Magdalena Silalahi
G-Tech: Jurnal Teknologi Terapan Vol 8 No 4 (2024): G-Tech, Vol. 8 No. 4 Oktober 2024
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/gtech.v8i4.5352

Abstract

Common domestic electrical equipment include air conditioners, televisions, fans, washing machines, refrigerators, rice cookers, irons, water heaters, computers, laptops, and others. TVs, PCs, and laptops are nonlinear electrical loads that generate harmonics with low power factors. This study intends to determine theTHDv and THDi of electrical equipment and compare them with the IEEE 519-2014 standard. The power factor relates to the PLN power factor standard of ≥0.85. The data analysis results demonstrate that this electrical equipment's THDv fulfills the norm. Nonlinear load electrical equipment is often made up of electronic components with a THDi of 118.36% to 216.42% and a power factor of 0.36 to 0.6. THDi and power factor vary, namely: THDi 7.60% to 22.73% and a power factor of 0.46 to 0.98. And linear load electrical equipment, THDi 1.07% to 2.10%, and power factor 0.98 to 1.0.
Co-Authors Alfronso Sinurat Antonius Doddy Tyas Prasetyo Atmadi Priyono Bambang Widodo Bambang Widodo Bambang Widodo Bernadetha Nadeak Cristian, Yosep Dangin, Helda Oktavianti David Melanius Nai Dery Elfando Edward Baringin Oloan Sihite Fernando Jeremia Siahaan FILIP DONATAL Filip Frensius Jalius Salebay Jenni Lisdawati Judo Ignatius Nempung Judo Ignatius Nempung Malau, Jekson Supardi Menara Immanuel Situmorang Mulya Haryanto Nempung, Judo Ignatius Purba, Robinson Ridwan Leksana Riyan siyentanu mareat Sakeru Robinson Purba Soebagio, Atmonobudi stepanus stepanus Stepanus Stepanus Sungkalang, Sripanus Sungkalang Susilo Susilo Tyas Prasetyo, Antonius Doddy