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Jurnal SPEKTRUM

spektrum
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Published by Universitas Udayana

ISSN : 23023163 EISSN : 26849186 DOI : -

Core Subject : Science, Engineering,

Computer Science & IT Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering

Jurnal SPEKTRUM is peer review journal, published four times a year by the Department of Electrical Engineering, Faculty of Engineering, Universitas Udayana. This journal discusses the scientific works containing results of research in the field of electrical, include: power systems, telecommunications, computers, informatics, controls, and electronics. Authors are expected to include original scientific papers in accordance with the scope of the discussion of this journal including all aspects of the theory and practice are used.

Arjuna Subject : Teknik (semua kategori) - Teknik Listrik dan Elektro

Articles 677 Documents

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ANALISIS STABILITAS MULTI MACHINE PADA ISLAND MODE SISTEM KELISTRIKAN BALI I Gede Bayu Suarsa; Ida Bagus Gede Manuaba; Rukmi Sari Hartati
Jurnal SPEKTRUM Vol 7 No 2 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Modern electrical systems are characterized by extensive interconnection systemswith the need for electrical energy and control depending on the control system. Oneelectricity system that has been widely interconnected is the Bali electricity system. The Balisystem using island mode has four generating units that can supply electrical energy needsincluding UP Pesanggaran, UP Celukan Bawang, UP Gilimanuk and UP Pemaron. But itmust be remembered in supplying electrical energy needs are also affected by the constantchange in load, resulting in instability in the electrical system. So the need for a controlsystem that can increase the value of damper such as the Power System Stabilizer (PSS). PSScan be used to reduce frequency oscillations when interference occurs, but for PSS design itgives less good performance in different operating conditions. Problems with PSS occur dueto errors in modeling, input value input, and topology variations. Efforts are made to reduceerrors in PSS by using methods that are expected to overcome this problem, namely the fuzzylogic controller.The results of the analysis show that the system performance index usingfuzzy logic is 78.6064. Fuzzy logic has the ability to damp better and reduce errors better.

RANCANG BANGUN SISTEM KONVERSI UANG LOGAM MENJADI E-MONEY BERBASIS MIKROKONTROLER DAN APLIKASI ANDROID D M Baskara Puruhita Wija; I G A P Raka Agung; Pratolo Rahardjo
Jurnal SPEKTRUM Vol 8 No 1 (2021): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Money is a medium that is used as a means of buying/selling. Indonesia uses theRupiah currency with 2 types of money used, one of which is coins. Coins are generally used intransactions of small amounts, but in some cases, coins are used in transactions of largeamounts. This caused problems in counting and sorting coins in terms of time and energy.Through this problem, a coin sorting and the counter system was developed that could beconverted into E-Money and integrated with an Android-based smartphone. The system isdesigned with 2 parts, namely hardware and software. The sorting system is created using thedifferent diameters of each coin. The counting system uses IR Sensor to detect coins andcounts on the ESP32. Testing on the system is carried out in 3 stages, namely testing the toolsystem, testing the Android application system, and testing the whole system. The system forconverting coins to e-money is made using the ESP32 as the main microcontroller withBluetooth as a medium of communication with smartphones. The coin sorting board is madeinto 4 strips and has holes the same size as the diameter of the coins. In the coin countingsystem, the tool has been able to count up to 250 coins in 8 minutes 21 seconds with anaccuracy percentage above 80%.

PERANCANGAN SISTEM PENGUNCIAN RODA SATU ARAH UNTUK MENGEMUDIKAN KENDARAAN RODA EMPAT DI JALAN MENANJAK Doni Helmahera; Dewa Made Wiharta; I Made Suartika
Jurnal SPEKTRUM Vol 7 No 4 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Handbrake of a vehicle is the most important thing in a safety system in maintaining theposition of the vehicle in its stop position. The hand brakes function to brake or lock the rearwheels mechanically through the connecting rods and cables. The hand brake is also to parkthe vehicle on a down/climb road. In order to facilitate the ability of four-wheeled vehicles whenstopping on the ramp due to traffic jams, a special wheel locking system is used on the ramp. Ina one-way wheel shooting system when a four-wheeled vehicle stops on the ramp, the systemlocks the wheel when the wheel rotates slightly backwards without having to pull the handbrakelever. Therefore, this research aims to describe how the work of the one-way wheel lockingsystem when on the ramp of a four-wheeled vehicle. At the design of this system researchersmake prototype as a simulation system that is approaching similar to the shape of componentsof a four-wheeled vehicle. Researchers perform test system work when the prototype movesforward and backwards to find out if the system is capable of locking the wheels when the moveis backward and release the locking wheel when moving forward without using the hand brake.Using a one-way wheel locking system is expected to facilitate the driver in driving four-wheeledvehicles on the ramp without having to use the hand brake.

ANALISA UNJUK KERJA MOTOR INDUKSI 3 PHASA TERHADAP PENGARUH HARMONISA (THD) DENGAN PENAMBAHAN FILTER AKTIF MENGGUNAKAN MATLAB I Nyoman Duarsana; I Wayan Rinas; I Wayan Arta Wijaya
Jurnal SPEKTRUM Vol 8 No 1 (2021): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Operating non-linear loads can cause harmonic distortion, one of which is aninduction motor. Harmonics can cause the system power quality content level to become worse.One way to reduce harmonics is with an active filter. Theemethodduseddin thissresearchhisstheSimulink method in Matlab. The addition of an active filter aims toreduceetheeharmonicccontent in thennetwork in order toosee theeeffect ofhharmonics ontttheperformanceeeof the 3 phase induction motor on rotation and torque. The results of simulationanalysis using Matlab show that active filters can reduce the harmonic content in the networkcompared to networks without using active filters. The decrease that occurred in THDI was11.88% in the Rrphase, 11.87% in theeSsphaseaand 11.88% in the Ttphase with a load of 3motors. There is no change in motor performance at rotation and torque, namely the rotation of1498 Rpm and torque of 0.4682 Nm.

RANCANG BANGUN PROTOTYPE PLTMH DENGAN TURBIN PELTON SEBAGAI MODUL PRAKTIKUM I Gusti Putu Andhita Mahayana; Lie Jasa; I Gusti Ngurah Janardana
Jurnal SPEKTRUM Vol 7 No 4 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Learned about the use of water resources as a micro hydro power plant is very importantto be carried out by Electrical Engineering students at Udayana University. At this time atConvertion Energy Laboratory there was not been a practicum about Mycro Hydro Power Plandue to the unavailability of guide practicum module and micro hydro power plant prototypes.Therefore in this research was design and build a Prototype of Microhydro Power Plan wich had18 buckets where had 5 cm width, 4,47 cm length, 1,6 height and the tickness was 0,28 cm.This prototype can made 4,5 L/s water discharge, 9,809 W Power, and the torque was 0,26 Nm. So that prototype had 1,48% efficiency. To make this prototype as a complete practicummodule was arranged practicum guide modules that was explain abaout Characteristic of MicroHydro Power Plan with Pelton Turbines.

PENALAAN POWER SYSTEM STABILIZER PLTDG PESANGGARAN BERBASIS LOSSES CONCEPT Abdurrahman Sayudi; Rukmi Sari Hartati; Ida Bagus Gede Manuaba
Jurnal SPEKTRUM Vol 8 No 1 (2021): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Pusat Listrik Tenaga Diesel Gas (PLTDG) Pesanggaran menjadi salah satu pembangkit yang ada di Bali yangmempunyai posisi penting dalam sistem 150 kV Bali, kinerja kestabilan dari PLTDG Pesanggaran saat terjadigangguan merupakan hal krusial yang perlu diperhatikan. Pendekatan model SMIB untuk analisa kestabilanpada PLTDG Pesanggaran digunakan untuk memudahkan analisa, dengan cara mereduksi sistem multimesinmenjadi SMIB dengan Losses Concept. Dari hasil simulasi model tersebut diperoleh hasil bahwa nilai overshootdan settling time dari tanggapan perubahan sudut rotor dan tanggapan frekuensi pada model SMIB PLTDGPesanggaran.

RANCANG BANGUN PROTOTIPE SISTEM PENDETEKSI ASAP ROKOK BERBASIS MIKROKONTROLER MENGGUNAKAN SENSOR MQ-2 DILENGKAPI DENGAN EXHAUST FAN Ida Ayu Putu Intania Paramitha1; IGAK Diafari Djuni; Widyadi Setiawan
Jurnal SPEKTRUM Vol 7 No 3 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

This research is conducted to detect cigarette smoke based on a microcontroller usingMQ-2 sensor equipped with an exhaust fan. This system has three status namely good smokelevel, moderate smoke level and unhealthy smoke level. The concentration of smoke detectedcan be monitored by a smartphone, in which the system will send a message via telegramwhen the room is detected by cigarette smoke. Based on the research that has been done, thesystem made has been able to send the smoke concentration data to telegram, the detectedsmoke concentration level and turn on the buzzer and the DC Fan when the smokeconcentration status is in moderate level around 100 - 400 ppm and in unhealthy level around> 400 ppm. Furthermore, it has been also able to send the comparison of energyconsumption, when both of the fans are off, the energy consumption is 2.42 Wh, and whenboth of the fans are on, then the energy consumption is 9.44 Wh.

RANCANG BANGUN SISTEM PENAMPUNGAN AIR MENGGUNAKAN TANDON ATAS SECARA OTOMATIS BERBASIS MIKROKONTROLER Rezky Setyawan; Anak Agung Ngurah Amrita; Komang Oka Saputra
Jurnal SPEKTRUM Vol 8 No 1 (2021): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Water reservoirs are temporary water reservoirs, usually placed at the highest. The communityplaces or installs water reservoirs above the house by using gravity so that the water can run downswiftly. In general, to get clean water, people use PDAM services or use well water. Generally, in urbanareas, the water sources used to supply water reservoirs come from PDAMs or wells (boreholes). In theclean water storage system using an upper reservoir has several problems, such as monitoring theavailable water capacity in the borehole which cannot be known so that the pump will operate for a longtime to fill water and cause damage to the pump, due to the difficulty of monitoring and controlling. Thecondition of the upper reservoir water storage is therefore designed in this study with a prototype"WATER SANDING SYSTEM USING UP TANDON AUTOMATICALLY BASED ONMICROCONTROLLER" which can be monitored via SMS and manually.

PENGARUH SUDUT BUKAAN GUIDE VANE DAN TEKANAN AIR TERHADAP KECEPATAN PUTAR DAN DAYA OUTPUT PADA PROTOTYPE PEMBANGKIT LISTRIK TENAGA MIKROHIDRO DENGAN TURBIN CROSSFLOW I Wayan Arta Wijaya; I Made Dwi Mertadiyasa; I Made Suartika
Jurnal SPEKTRUM Vol 7 No 4 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

The pattern of power plants development in Indonesia is still relying on the availability of fossilfuels based energy sources. Meanwhile, Human are faced with a situation of depleting reserves offossil energy sources and increasing environmental damage due to the use of fossil fuels basedenergy sources. Renewable Energy development can be a solution to these problems. One of them isthe development of a Micro Hydro Power Plant. In the realization of Micro Hydro Power Plant inIndonesia, the crossflow water turbine type can be used. It is a type of impulse turbine with a goodcharacteristic at a low head for micro-scale generator capacity. This study analyzes the effect of guidevane opening angle and water pressure on rotation and output power of crossflow turbine. Theopening angle of the guide vane studied was 15º, 30º, 45º, 60º, 75º, and 90º in each water pressurecondition of 4 psi, 8.5 psi and 13 psi. The test is carried out by simulating direct measurements on theprototype of the Micro-hydro Power Plant that has been built. Every combination of parameterstested, the maximum value of rotational speed and output power is obtained at the guide vaneopening angle of 30º and water pressure of 13 psi. Turbine rotation values generated before and aftercoupled with a generator are 591.9 rpm and 522.7 rpm. The values of the generator rotation beforeand after the load coupled are at 3490 rpm and 2368 rpm. And the power value generated by thegenerator is 11.8 Watts.

IMPLEMENTASI KAMERA PEOPLE COUNTING PADA TEMPAT IBADAH DALAM UPAYA MENCEGAH PENYEBARAN COVID-19 M Acarya Mordekhai Karang; I M Oka Widyantara; I G A K Diafari Djuni H
Jurnal SPEKTRUM Vol 8 No 1 (2021): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

The COVID-19 pandemic results in activities that are actually being carried out oreliminated. The government has made efforts to keep activities running, one of which is bylimiting the number of congregations attending to a maximum of 20% (twenty percent) of theroom capacity and no more than 30 people. To be able to find out the number of congregantspresent in a building, a HIKVision People Counting Camera is used which is able to calculatethe rate of people entering a building. The use of the People Counting Camera is expected to beable to control the number of congregants who attend. The ability of this camera is expected tobe able to control the number of congregants who attend places of worship so that worship cancomply with proper health protocols.

Page 35 of 68 | Total Record : 677

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Contact Name
Nyoman Gunantara

Contact Email
gunantara@unud.ac.id

Phone
+6281558140279

Journal Mail Official
gunantara@unud.ac.id

Editorial Address
Program Studi Teknik Elektro Fakultas Teknik - Universitas Udayana d/a. Kampus Bukit Jimbaran Bali - 80364 Phone/ Fax: +62 361 703315

Location
Kota denpasar,

Bali

INDONESIA

Abstract

Abstract

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Abstract

Abstract

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Abstract

Abstract

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Nyoman Gunantara

Contact Email gunantara@unud.ac.id

Phone +6281558140279

Journal Mail Official gunantara@unud.ac.id

Editorial Address Program Studi Teknik Elektro Fakultas Teknik - Universitas Udayana d/a. Kampus Bukit Jimbaran Bali - 80364 Phone/ Fax: +62 361 703315

Location Kota denpasar, Bali INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
Nyoman Gunantara

Contact Email
gunantara@unud.ac.id

Phone
+6281558140279

Journal Mail Official
gunantara@unud.ac.id

Editorial Address
Program Studi Teknik Elektro Fakultas Teknik - Universitas Udayana d/a. Kampus Bukit Jimbaran Bali - 80364 Phone/ Fax: +62 361 703315

Location
Kota denpasar,

Bali

INDONESIA