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Studi Analisis Pengaruh Filter Aktif Berbasis Fuzzy Logic Controller Untuk Mereduksi Harmonisa Akibat Beban Non Linier G. A. M. Dwi Ade Saputra; I Wayan Rinas; I Made Suartika
Jurnal SPEKTRUM Vol 6 No 2 (2019): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (583.758 KB) | DOI: 10.24843/SPEKTRUM.2019.v06.i02.p04

Abstract

Electrical equipment categorized as the nonlinear load will cause harmonics. Harmonic is a periodic distortion of the sine wave that can cause a negative impact on electronic equipment components. One way to improve power quality is to reduce harmonics using harmonic filters. In this study, an analysis of the system was carried out before adding a filter and after adding an active filter based on a fuzzy logic controller. The application of the fuzzy logic method on filters functions to reduce over switching in the inverter so that it can reach the lowest THDi value. THDi simulation results when the existing conditions are in phase R, S, T; at 14%, 17%, 14%. When the active filter condition is without control, the THDi percentage at the R phase is 6%, the S phase is 6%, the T phase is 4%. In the active filter conditions based on the fuzzy logic controller the percentage of THDi in phase R, S, T; is 0.9%, 0.9, 1%. Based on the simulation results introduced in the active filter based fuzzy logic controller is able to reduce harmonic distortion to the lowest value, so the use of fuzzy logic in active filters can be used in the harmonic filtering process in the electrical system.
ANALISIS PENGARUH PENGATURAN DAYA REAKTIF UNTUK FILTER HARMONIC TERHADAP PERUBAHAN THDi PADA SISTEM TENAGA LISTRIK I Wayan Rinas; A. A Gede Maharta Pemayun; I Made Suartika
Jurnal SPEKTRUM Vol 7 No 4 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (490.028 KB) | DOI: 10.24843/SPEKTRUM.2020.v07.i04.p23

Abstract

Harmonic filters are used to reduce harmonic distortion in electric power systems. Inactive filters, usually the required reactive power (Qc) can be adjusted. In this study, an analysisof the Qc setting on the Active filter was carried out to determine the effectiveness of the filter sothat the THDi (total harmonic distortion) was obtained which was in accordance with the IEEE519-2014 standard (8%). The results of the analysis of the smallest Qc which can still reduceharmonic distortion when meeting the IEEE 519-2014 standard is Qc 55% of the maximumreactive power with THDi for pasa R = 7.38%; S = 7.81%; and T = 5.94%. Control is needed toadjust the Qc on the filter, because the Qc value will continue to change according to theelectric load being operated.
Pengaruh Fuzzy Logic Controller Pada Pengoperasian Filter Aktif Shunt Terhadap Penurunan ITHD dan Rugi-Rugi Daya Pada Sistem Kelistrikan RSUD Klungkung I Putu Jerry Akira Dinata; I Wayan Rinas; I Wayan Arta Wijaya
Jurnal SPEKTRUM Vol 6 No 3 (2019): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (418.988 KB) | DOI: 10.24843/SPEKTRUM.2019.v06.i03.p20

Abstract

RSUD Klungkung is supplied by a transformer with a capacity of 200 kVA. The use of non-linear loads in Klungkung Hospital can cause harmonic currents (ITHD). The greater the harmonic current produced, the quality of the electrical power will get worse, causing losses to the transformer. The installation of active shunt filters and the use of fuzzy logic controllers as controllers on filters can reduce the harmonics that occur in the electrical system. The results of ITHD measurements on existing conditions for R phase are 11.23%, S phase is 14.72%, and T phase is 11.20%. The ITHD value decreased when the system was paired with a shunt active filter for R phase of 5.24%, S phase was 7.18%, and T phase was 5.34%. The ITHD value has decreased again when the use of fuzzy logic controller for R phase is 0.15%, S phase is 0.17%, and T phase is 0.11%. Decreasing ITHD values affect the losses generated on the system. In the existing conditions losses are 10.525%, losses in the operation of the shunt active filter are 1.352%, and the use of fuzzy logic controller produces the smallest losses of 0.00035%.
AUDIT ENERGI UNTUK EFISIENSI ENERGI PADA GEDUNG PT. SEJAHTERA INDOBALI TRADA I Wayan Alit Sutresna; Antonius Ibi Weking; I Wayan Rinas
Jurnal SPEKTRUM Vol 5 No 2 (2018): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (142.257 KB) | DOI: 10.24843/SPEKTRUM.2018.v05.i02.p37

Abstract

PT. Sejahtera Indobali Trada is a car maintenance and sales service company. Excellent customer satisfaction is prioritized by this company. The best service must be done by using facilities effectively. For this reason, energy management is needed. Energy auditing is the first step in energy management. Energy audit to find out the use of electricity and opportunities. Energy audit includes the contents of energy data with available data and calculating Energy Consumption Intensity (IKE) based on the data collected. Previously, PT. Sejahtera Indobali Trada has never conducted an energy audit. This research method is done by calculating and comparing electrical energy in energy and energy systems. The results were obtained at 6.82% with the IKE difference between pre-audit and post-audit amounting to 0.59 kWh / m2 / month.
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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (369.291 KB) | DOI: 10.24843/SPEKTRUM.2021.v08.i01.p14

Abstract

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.
SIMULASI PENYESUAIAN BEBAN PADA TRANSFORMATOR DI GARDU INDUK NUSA DUA I Made Eko Adi Setiawan; I Wayan Rinas; I Wayan Arta Wijaya
Jurnal SPEKTRUM Vol 7 No 2 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (376.1 KB) | DOI: 10.24843/SPEKTRUM.2020.v07.i02.p3

Abstract

The rapid development in the South Kuta region has resulted in an increase in the demand for electricityenergy that must be supplied by the 150 kV Nusa Dua substation. An increase in the amount of load results in anincrease in the load that must be borne by the transformer. To prevent losses due to overload, a load adjustmentsimulation is performed on the transformer at the Nusa Dua Substation. Load flow simulation is done using ETAPsoftware with the subject of the power transformer load along with the load-feeders. The purpose of the simulation isto know the loading conditions and power loss of the Nusa Dua substation system. Furthermore, the transformerload adjustment scenario is designed, then simulated again with ETAP software to determine changes in the loadingconditions and the power loss in the Nusa Dua substation system. Simulation results in existing condition withnormal operation, transformer 1 load is 69,8% and transformer 3 is 71,8% with a total power loss of 14,1%. After 3planning scenarios for transformer load adjustment, scenario 2 is the bestl scenario in short term with the loading ontransformer 1 is 50,4%, transformer 2 is 45,9%, and transformer 3 is 45,1% with total power loss of 9,16%. While forthe long term, scenario 3 is recommended by adding a new transformer unit. Transformer 1 loading is 50,9%,transformer 2 is 45,9%, and transformer 3 is 45,1% with a total power loss of 9,24%.
Implementasi Fuzzy Logic Controller Pada Filter Active Shunt Untuk Menanggulangi Thd (Total Harmonic Distortion) Sistem Kelistrikan RSUP Sanglah I Gede Anom Aditya Prawira; I Wayan Rinas; I Wayan Arta Wijaya
PROSIDING CSGTEIS 2013 CSGTEIS 2013
Publisher : PROSIDING CSGTEIS 2013

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Abstract

Abstrak—Listrik dapat dikategorikan sebagai kebutuhan pokok, karena banyaknya pengoperasian peralatan listrik dalam kehidupan sehari-hari. Kualitas daya listrik perlu diperhatikan agar peralatan elektronika yang kita gunakan tidak mengalami kerugian. Faktor penyebab kualitas daya menurun salah satunya adalah penggunaan beban non-linier. Penggunaan beban non-linier tersebut mengakibatkan adanya distorsi pada gelombang fundamental 50 Hz atau yang dikenal dengan istilah Harmonisa. Salah satu sarana publik yang mempunyai nilai harmonisa yang tinggi karena pengoperasian beban non-linier yang banyak adalah RSUP Sanglah Denpasar. Penanggulangan harmonisa di RSUP Sanglah Denpasar dapat dilakukan dengan melakukan filterisasi harmonisa dengan implementasi fuzzy logic.Penelitian ini dilakukan dengan cara melakukan analisa perbandingan hasil pengurangan harmonisa yang didapatkan dengan cara penambahan filter harmonisa tanpa penggunaan fuzzy dan setelah penggunaan fuzzy pada filter, sehingga kita dapat mengetahui bagaimana kontribusi fuzzy tersebut dalam penggunaan filter agar dapat mengurangi harmonisa lebih baik, mengurangi switching pada inverter dan juga mencapai batas terendah harmonisa sesuai standar IEEE no 519 tahun 1992.Perbandingan yang telah dilakukan dalam penelitian ini menyatakan bahwa nilai harmonisa yang didapatkan setelah penggunaan fuzzy logic pada filter aktif memang mendapatkan nilai harmonisa terendah, dengan kata lain implementasi fuzzy logic dapat digunakan dalam proses penanggulangan harmonisa.Kata kunci: harmonisa, filter aktif, fuzzy logic, non-linier.
Analysis of the Increase of Transformer Power Losses due to the Operation of Unbalanced Nonlinier Loads I Wayan Rinas; I Made Suartika; Anak Agung Maharta Pemayun
Journal of Electrical, Electronics and Informatics Vol 2 No 2 (2018): JEEI (August 2018)
Publisher : Institute for Research and Community Services Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JEEI.2018.v02.i02.p04

Abstract

Non-linear loads are the source of harmonic current for electric utilities. The high level of harmonics greatly affects the increase of losses of electrical power (losses). The quality of electric power is determined by the parameters of power losses that occur in the transformer due to harmonic distortion. In this research will be analyzed THD from result of measurement and simulation in accordance with IEEE 519-2014 standard, power loss analysis on transformer before and after. Harmonics, the impact is increased due to unbalanced linear currents.
Operation of LED Light as Emergency Lighting Resource DC with Charger Control Based Arduino Uno ATmega I Wayan Rinas; I Made Suartika; Anak Agung Maharta Pemayun; I G. A. P. Raka Agung
Journal of Electrical, Electronics and Informatics Vol 1 No 2 (2017): JEEI (September 2017)
Publisher : Institute for Research and Community Services Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JEEI.2017.v01.i02.p04

Abstract

Lighting is very important to support the activities of human life. To maintain the continuity of lighting can use power source from genset or battery. Now many manufactured LED (light emitting diode) bulb type which is energy saving with life time up to 50.000 hours. LEDs of this type can be operated with AC and DC current. The design control charger based Arduino Uno ATmega micro controller is used as a control system for charging and turning on LED lights. In this research the measurement of light intensity is done at 220 volt AC as reference, then measured the intensity of light for operation on some variation of DC voltage. The measurement results at DC voltage, LED Osram can be operated at 115 volt DC has reached the same light intensity with 220 volt AC. This selection aims to reduce the amount of battery usage as a DC power source.
Implementation of Data Warehouse in Human Resource Information System Using SEM-GeSCA Muhammad Anshari; I Putu Suryadharma; I Wayan Rinas
International Journal of Engineering and Emerging Technology Vol 2 No 1 (2017): January - June
Publisher : Doctorate Program of Engineering Science, Faculty of Engineering, Udayana University

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Abstract

Today, the changing nature of work and organization that occurs is quite high, causing the organization to be under pressure to adapt to changing circumstances. Work becomes more dynamic, making proactive behavior seen as a critical determinant of an organization's success. The purpose of this study was to identify the effect of HR practices on proactive behavior, as well as the role of mediation of work attachment to the relationship. Hypothesis testing using Generalized Structured Component Analysis model. From the test results found that the attachment of work plays a role in mediating the influence of work attachment to partial mediation behavior (Partial mediation). Limitations This study is using cross sectional data, a specific type of company and does not use data discriminately. This study uses dimensional integration to test proactive behavior that is directly influenced by HR practices and indirectly mediated by work attachment.