scholarly journals PREDIKSI DISTORSI HARMONISA PADA UTILITY LISTRIK PERUMAHAN YANG DISEBABKAN OLEH BEBAN NONLINIER MENGGUNAKAN STATISTIK PERBANDINGAN LINIER

2009 ◽  
Vol 1 (1) ◽  
pp. 49-59
Author(s):  
Riza Widia ◽  
Herisajani Herisajani ◽  
Witrionanda Witrionanda
Keyword(s):  
Power Quality ◽  
Personal Computer ◽  
Power Factor ◽  
Current Source ◽  
Fluorescent Lamp ◽  
Harmonic Current ◽  
Measurement Result ◽  
Quality Analyzer ◽  
Non Linear ◽  
Electricity Utility

Loads of electricity utility consists of linear loads and non linear loads. The non linear loads for example TV, personal computer, VCD player, microwave and fluorescent lamp using electronics ballast. Loads with non linear characteristics become harmonic current source to electricity utility. Condition prediction used statistic linear comparison based on load power to THDi (Distortion of Harmonic Current). Measurement result using power quality analyzer and etap 4.0 (Fluke 43B) find typical THDi. The calculation and measurement result of PF and THD to loads of electricity utility show the differences less than 5%. However power factor formulation and distortions of harmonic current is valid

scholarly journals Pengaruh Harmonic pada Peralatan Tegangan Satu Phasa di Ruangan Administrasi Bandara

2021 ◽  
Vol 7 (1) ◽  
pp. 71-76
Author(s):  
Catra Indra Cahyadi ◽  
I Gusti Agung Ayu Mas Oka ◽  
Yanti Daryanti
Keyword(s):  
Power Quality ◽  
Personal Computer ◽  
Harmonic Distortion ◽  
Simulation Method ◽  
Linear Load ◽  
Quality Analyzer ◽  
Non Linear ◽  
Non Linear Load ◽  
Quality Of Electric Power

Beban non linier yang belum berbentuk gelombang sinusoidal telah terdistorsi oleh distorsi harmonisa arus. Beban non linier merupakan salah satu penyebab timbulnya distorsi yang dapat mengakibatkan kualitas daya listrik semakin buruk. Paper ini membahas hasil simulasi penggunaan filter tunggal yang disetel untuk mengurangi distorsi yang disebabkan oleh beban non linier akibat personal computer dan printer untuk pencetakan. Pengukuran menggunakan alat power quality analyzer fluke. Hasil pengukuran terhadap 4 merk PC yang berbeda menunjukan bahwa nilai beban non linier yang dihasilkan mengalami penurunan. Beban personal komputer merk A dari THDi sebesar 120,7 % menurun menjadi 110,8% , merk B dari THDi sebesar 121,9% menjadi 109,9 %, merk C dari THDi sebesar 150,1% menurun menjadi 100,2 %, merk D dari THDi sebesar 176,2% menurun menjadi 104,1 %. Penurunan total harmonic distorsion arus setelah direduksi sebesar 0,8 – 1 %. Penggunaan filter berhasil menurunkan nilai THDi. Non-linear loads that have not been in the form of sinusoidal waves have been distorted by current harmonic distortion. Non-linear loads, one of the causes of distortion can cause the quality of electric power to get worse. Research on the simulation method uses a single filter as a filter that is adjusted to reduce distortion caused by non-linear loads using personal computers and printers for printing machines. Where the measurement uses a Fluke Power quality analyzer, the resulting non-linear load value is obtained on non-linear loads with personal computer loads brand A has a THDi of 120.7% decreasing to 110.8%, brand B THDi of 121.9% becomes 109.9%, the C THDi brand by 150.1% decreased to 100.2%, the D THDi brand by 176.2% decreased to 104.1% where the decrease in the total harmonic current distortion after reduction was 0.8 - 1%. The use of a filter was successful in lowering the THDi value.

Resonance Impact on Power Factor Correction System in Power System with Harmonic Distortion

2015 ◽  
Vol 781 ◽  
pp. 254-257 ◽  
Author(s):  
Saran Chaladying ◽  
Pana Dusitakorn ◽  
Nattachote Rugthaichareoncheep
Keyword(s):  
Power System ◽  
Power Factor ◽  
Power Factor Correction ◽  
Current Source ◽  
Harmonic Distortion ◽  
Resonance Phenomenon ◽  
Problem Solution ◽  
Harmonic Current ◽  
Parallel Resonance ◽  
Correction System

This paper presents the resonance impact on power factor correction system (PFC system) in power system with harmonic distortion. The main purpose is to show harmonic current amplification that generated by the parallel resonance phenomenon in power system and problem solution. The power system model for analysis consist of the harmonic current source and PFC system. These devices are established by MATHLAB/Simulink. In simulation, the variable speed drive, which is DC drive, instead to the harmonic current source in power system that use capacitor to improve power factor of system. The problem solution, the series reactor, which is detune filter, is used to correct parallel resonance problem, by connecting capacitor with the series reactor, which is detune filter. The result of simulation, detune filter is able to avoid the parallel resonance phenomenon and partially reduce harmonic current that flowing to capacitor, however the series reactor, which is detune filter, is unable to reduce harmonic current of the harmonic current source.

Study of Power Quality Phenomenon Based on Design and Simulation of Boost Type PFC Converters

2020 ◽  
Vol 07 (03) ◽  
pp. 6-10
Author(s):  
Samridhi Vijay ◽  
Keyword(s):  
Power Quality ◽  
Power Factor ◽  
Supply Voltage ◽  
Harmonic Distortion ◽  
Current Mode ◽  
Control Technique ◽  
Non Linear ◽  
Present Design ◽  
Converter Topology ◽  
Average Current

This paper present design and simulation of boost type Power Factor Correction (PFC) converter which improved the power quality. With the enormous development in the usage of power converters circuits like rectifiers which is non linear loads, the current drawn by these non- linear loads will not follow the supply voltage (i.e. non simulation). This results in high Total Harmonic Distortion (THD) and poor Power Factor (PF). Hence there is a need of converter topology to improve the PF and reduce line current harmonic. Boost type PFC converters is most popular topology for improving the PF in supply AC side. Average Current Mode (ACM) control technique is employed to control the boost converter in Continuous Conduction Mode (CCM). Simulation of proposed system is carried out using MATLAB/ Simulink platform.

scholarly journals Analisis Pengaruh Ketidakseimbangan Beban dan Harmonisa Terhadap Arus Netral Pada Trafo Distribusi 8 Kapasitas 500 KVA di PPSDM Migas Cepu

2021 ◽  
Vol 1 (2) ◽  
Author(s):  
Riki Khomarudin ◽  
Lukman Subekti
Keyword(s):  
Power Quality ◽  
Distribution Transformer ◽  
Measurement Result ◽  
Channel Current ◽  
Load Imbalance ◽  
Quality Analyzer ◽  
Current Value ◽  
Total Capacity

Distribution transformer 8 at PPSDM Migas Cepu has a capacity of 500 kVA with load connected to boiler and refinery. The loading connected to the distribution transformer 8 is the majority of the 3-phase motor pump load and some 1-phase pump motors. In this case study measurements were made using the ampere pliers as the hypothesis of the current of each phase. From the measurement result there is imbalance of load between channel and also there is current value of neutral conductor side. And to know the content of harmonics on the distribution transformer, then measured with a power quality analyzer.The result of measurement with fluke quality 436 type fluke quality got result of measurement that current value at neutral conductor side equal to 14A. The value of load imbalance between conductor obtained by value of channel current R equal to 346A, in channel S equal to 306A, and in channel T equal to 318A. The THD value of the current obtained from the measurement with the power quality analyzer on the conductor side of R is 3.4%, on the conductor side S of 3.0%, and on the conductor side of T is 3.0%, and in the neutral channel is the greatest value of 29%. In the analysis of this chapter we get the result of imbalance loads of 4.6%, with the average loading of 45% of the total capacity of the transformer

scholarly journals PENGARUH DISTORSI HARMONISA TERHADAP KINERJA TRIP MINIATURE CIRCUIT BREAKER TIPE C 2A, 4A, DAN 6A DENGAN SUMBER TEGANGAN PLN DAN GENSET

2020 ◽  
Vol 4 (1) ◽  
pp. 28-34
Author(s):  
Unfa Solfiani ◽  
Purwanto Gendroyono ◽  
Imam Arif Raharjo
Keyword(s):  
Power Quality ◽  
Circuit Breaker ◽  
Harmonic Distortion ◽  
Voltage Source ◽  
Harmonic Load ◽  
Research Subjects ◽  
Circuit Breakers ◽  
Quality Analyzer ◽  
Non Linear ◽  
Non Linear Load

The purpose of this study was to determine the effect of harmonic distortion with harmonic load on the performance of trip Type C Flow Miniature circuit breakers 2A, 4A, and 6A The method used is descriptive quantitative method. The research subjects to be examined are miniature circuit breakers. In collecting data, carried out harmonic load population testing and testing with a Power Quality Analyzer with a voltage source PLN and Genset, the results of MCB samples obtained were analyzed for trip characteristics referring to SPLN 108 : 1993 and IEEE. The results showed that from testing trip characteristics using harmonic loads and PLN voltage sources and generators carried out on miniature circuit breakers trip changes occurred which were still within the standard limits of SPLN 108: 1993. Then the results of testing of non-linear load such as a combination of incandescent, spotlight lamps, and fluorescent lamp ballast electronic, with currents flowing at 1.5 x In on the MCB. In the MCB using the PLN voltage source get MCB 2A THD Current 71.45%, MCB 4A THD Current 46.64%, MCB 6A THD Current 34.71% while the MCB using Genset voltage source get MCB 2A THD Current 52.07%, MCB 4A THD Current 31.54%, MCB 6A THD Current 24.62%. From the tests that have been done in getting the results, the greater harmonic distortion (THD Current) can affect the working mechanism of the MCB which results in faster MCB termination time in terminating the circuit. ABSTRAK Tujuan dari penelitian ini adalah untuk mengetahui pengaruh distorsi harmonisa dengan beban harmonik terhadap kinerja trip miniature circuit breaker Tipe C Arus 2A, 4A, dan 6A   Metode yang digunakan adalah metode deskriptif kuantitatif. Subjek penelitian yang akan diteliti adalah miniature circuit breaker Pada pengumpulan data, dilakukan pengambilan populasi beban harmonik dan melakukan pengujian dengan alat ukur Power Quality Analyzer dengan sumber tegangan PLN dan Genset, hasil pengujian sampel MCB yang didapat lalu dianalisis mengenai karakteristik trip yang mengacu pada SPLN 108:1993  dan IEEE Hasil penelitian menunjukkan bahwa dari pengujian karakteristik trip dengan menggunakan beban harmonik dan sumber tegangan PLN dan genset yang dilakukan pada miniature circuit breaker terjadi perubahan trip yang masih dalam batas standar SPLN 108:1993. Kemudian hasil pengujian terhadap beban non linear berupa lampu hemat energi, lampu spotlight, dan kombinasi lampu pijar dengan arus yang di alirkan sebesar 1.5 x In pada MCB. Pada MCB dengan menggunakan sumber tegangan PLN di dapatkan MCB 2A THD Arus 71.45%, MCB 4A THD Arus 46.64%, MCB 6A THD Arus 34.71% sedangkan Pada MCB dengan menggunakan sumber tegangan Genset di dapatkan MCB 2A THD Arus 52.07%, MCB 4A THD Arus 33.35%, MCB 6A THD Arus 24.62%. Dari pengujian yang telah dilakukan di dapatkan hasil semakin besar distorsi harmonik arus (THD Arus) maka dapat mempengaruhi mekanisme kerja pada MCB yang mengakibatkan waktu pemutusan MCB menjadi lebih cepat dalam melakukan pemutusan rangkaian.

Comparison of Monitor Types in Personal Computer Set on Electrical Energy Saving and Side Effect on Power Quality

2013 ◽  
Vol 313-314 ◽  
pp. 891-895
Author(s):  
C. Uyaisom ◽  
K. Nuntasud ◽  
P. Kerdlap
Keyword(s):  
Energy Saving ◽  
Power Quality ◽  
Personal Computer ◽  
Power Factor ◽  
Side Effect ◽  
Liquid Crystal Display ◽  
Light Emitting Diode ◽  
Electrical Energy ◽  
Light Emitting ◽  
High Level

This paper presets comparisons of type of monitor in personal computer set on electrical energy saving and side effect on power quality. The 3 types of monitor in personal computer consists of cathode ray tube : CRT type inch, liquid crystal display : LCD type, and light emitting diode : LED type and side of each monitor is 19 inch. The experimental results as shown the power consumption and side effect on power quality such as power factor and %THDi each monitor types. The experiment results shown the best effectiveness is LED monitor type, it can be saving of energy up to 75.69 % of CRT monitor type and 45.30 % of PC. Set with CRT monitor type. However, the LED monitor type are generated of %THDi very high level and low level of power factor.

Proposal of a Power Quality Analyzer for the new Brazilian Distribution Procedures (PRODIST)

2012 ◽  
pp. 783-786
Author(s):  
G.S. Wojichowski ◽  
C.D.P. Crovato ◽  
R.C. Leborgne
Keyword(s):  
Power Quality ◽  
Quality Analyzer
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