Parallel resonance impact on power factor improvement in power system with harmonic distortion

2015 ◽  
Author(s):  
Saran Chaladying ◽  
Aroon Charlangsut ◽  
Nattachote Rugthaichareoncheep
Keyword(s):  
Power System ◽  
Power Factor ◽  
Harmonic Distortion ◽  
Parallel Resonance ◽  
Power Factor Improvement

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.

Technical and Economic Analysis for Harmonic Distortion Impact and Mitigation Technique in Power Networks

2017 ◽  
Vol 866 ◽  
pp. 439-443
Author(s):  
Nattachote Rugthaichareoncheep ◽  
Saran Chaladying
Keyword(s):  
Economic Analysis ◽  
Power Factor ◽  
Power Factor Correction ◽  
Harmonic Distortion ◽  
Power Network ◽  
Power Networks ◽  
Technical And Economic Analysis ◽  
Non Linear ◽  
Parallel Resonance ◽  
Mitigation Technique

This research proposes technical and economic analysis of harmonic distortion impact and mitigation technique in power networks. Main proposal of research is analysis of harmonic impact and harmonic solution by regarding to economic decency for investment. Parallel resonance is harmonic impact that will be mentioned in this research because it is a problem that is mostly emerged in industries that contain non-linear loads and power factor correction devices. Its impact on power network is high voltage and current amplification, which link to equipment and system failure. An application of detuned filter will be proposed to solve the problem due to its popularity (It is a basic solution, easier and more inexpensive than the other solution). Parallel resonance condition will be modeled with an industrial power network, which contains a power transformer, a non-linear load (AC drive), a power factor correction device (capacitor bank) and a harmonic correction device (detuned filter bank), by using electrical, mathematical and payback period formulas. The results will illustrated the impact of parallel resonance phenomenon due to harmonic distortion in power network.

scholarly journals Harmonics resonance elimination technique using active static compensation circuit

2021 ◽  
Vol 10 (5) ◽  
pp. 2405-2413
Author(s):  
Rakan Khalil Antar ◽  
Mohammed Y. Suliman ◽  
Asef A. Saleh
Keyword(s):  
Power System ◽  
Power Factor ◽  
Pulse Width Modulation ◽  
Supply Voltage ◽  
Resonance Effect ◽  
Harmonic Distortion ◽  
Resonance Problem ◽  
System Quality ◽  
Compensation Circuit ◽  
Nonlinear Load

The existence of nonlinear loads produces high distortion and low power factor in the power system that leads to get poor power quality. Resonance problem is occurred due to the power system inductances and the compensation capacitors which increases the harmonic distortion. Therefore, it is necessary to prevent the action of resonance even if conventional or modern methods are built to improve the power system quality. In this paper, active static compensation circuit is proposed and designed to have the features of improving power factor, reducing THD, and eliminating the harmonics resonance effect at the same time with different linear and nonlinear load conditions. These features have been performed based on a modified pulse width modulation technique to drive and control the proposed circuit. The originality designed point of this technique is to have ability to operate the active static compensation circuit as harmonics injector, power factor corrector and resonance eliminator at the same time. Simulation model results illustrate that the proposed circuit is effective for both steady-state and transient operations conditions. The THD of the supply voltage and current at firing angle (α=300) is reduced by 99% and 98.8% respectively. While the power factor is improved to stay around unity.

scholarly journals Unjuk Kerja Filter Pasif dalam Mereduksi Distorsi Gelombang pada AC/DC Konverter

2020 ◽  
Vol 6 (2) ◽  
pp. 122
Author(s):  
Asnil Asnil
Keyword(s):  
Power Factor ◽  
Input Signal ◽  
Single Phase ◽  
Harmonic Distortion ◽  
Passive Filter ◽  
Passive Filters ◽  
Input Waveform ◽  
Signal Changes ◽  
Power Factor Improvement ◽  
Single Phase Rectifier

This paper shows the use of passive filters to reduce the distortion of input waves in a single phase uncontrolled rectifier. Simulations are carried out with various passive filter models to get a decrease in the value of Total Harmonic Distortion (THD) and correct the distortion of the uncontrolled single phase rectifier input waveform. The results of the simulation show the shape of the input signal changes in the uncontrolled single-phase rectifier, analyzing the value of power factor improvement and also the THD value.

scholarly journals Esa Based Upqc Controller to Improve Power Quality in Microgrid System

2019 ◽  
Vol 9 (2) ◽  
pp. 4479-4486
Keyword(s):  
Power System ◽  
Power Quality ◽  
Phase Angle ◽  
Power Factor ◽  
Reactive Power ◽  
Search Algorithm ◽  
Harmonic Distortion ◽  
Main Concern ◽  
Transmission Parameters ◽  
And Performance

Generally, Power Quality is the main concern parameter in present power system scenario, the main causes for effecting the power quality is due to either harmonic distortion, voltage imbalances, reactive power variations. There are many techniques applied to maintain this power quality in literature. In Facts family, the UPQC controller plays a key role, because it uniquely controls all the transmission parameters. The UPQC controller is combination of series-shunt converters with common dc link. The signals required for these converters are generated by reference and actual signals of bus and dc link capacitor. Phase locked loop helps to provide the phase angle sequence required to improve power factor. In addition with, this paper is implemented with extended search algorithm to better control the dc link voltage for improving power quality. Mat lab/Simulink is used to test the system conditions and performance.

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