Design of Filters to Reduce Harmonic Distortion in Industrial Power Systems

Gonzalez, D.A.; McCall, J.

doi:10.1109/tia.1987.4504938

Cited by 226 publications

(48 citation statements)

References 4 publications

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“…A small harmonic current within this frequency range can give a very high and undesirable harmonic voltage, the condition which is called resonance [15].…”

Section: Harmonics In Power System: Sources Andmentioning

confidence: 99%

Harmonics mitigation on industrial loads using series and parallel resonant filters

2017

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Most industrial loads are inductive in nature and therefore absorb Volts Ampere Reactance (VARs) leading to lagging power factor. Some inductive loads also produce current and voltage signals with frequencies in integer multiples of the 50 or 60 Hz fundamental frequencies called harmonics. Harmonics in power system causes several problems ranging from overheating, premature equipment failure, false tripping of protective relays resulting in unnecessary down time in industrial production. This work compared the use of series and parallel resonant harmonic filters in suppressing harmonics using Simulink model of the power system of NICHEMTEX, a Textile industry in Nigeria as a case study. Mathematical analysis representing current harmonics distributions on industrials loads with and without capacitor banks were presented. From the analysis, series resonant filter mitigated the total harmonic distortion from 30.080% to 3.460%. The installation of capacitor bank along with the series resonant filter in the industrial facility, further reduced the total harmonic distortion to 0.001% and power factor compensated from 0.860 to 0.894.However, the use of parallel resonant filter mitigated the harmonic distortion to 8.107% and a reduction in the power factor from 0.860 to 0.840. With the parallel resonant filter connection with the capacitor bank, harmonic distortion was mitigated to 0.140%, and the power factor reduced to 0.553, the value which is very low. Hence, it is observed that for this sample case, the use of series resonant filter mitigated the harmonics distortion and maintained power factors within the acceptable IEEE standard values.

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“…A small harmonic current within this frequency range can give a very high and undesirable harmonic voltage, the condition which is called resonance [15].…”

Section: Harmonics In Power System: Sources Andmentioning

confidence: 99%

Harmonics mitigation on industrial loads using series and parallel resonant filters

2017

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“…(2) Perform harmonic power fl ow equation to check constraints. If any constraint is violated, go to (1). Otherwise, proceed to (3).…”

Section: Solution Algorithmmentioning

confidence: 99%

“…The fi lter design has become essential for systems. The problem of designing a harmonic fi lter has been conventionally by trial and error approach, In the recent decade, various formulations for a more systematic approach to harmonic fi lters design have been developed [1][2][3][4][5]. Although eff ective in eliminating the harmonic, these methods did not consider the cost of fi lter elements, they also did not address whether or not the issue of the size of fi lters could adhere to the system specifi cations.…”

Section: Introductionmentioning

confidence: 99%

Optimal system harmonic filters design

Hwang

Huang

Chang

et al. 2010

Journal of Information and Optimization Sciences

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In this paper, we formulate the design harmonic fi lter problem taking by considering investment cost and operational constraints. System quality can generally be achieved by installing harmonic fi lters in industry systems, thereby reducing the harmonics. Users prioritize the performance and cost of fi lters as primary concerns. This new formulation uses a combinatorial optimization problem with a non-diff erentiable objective function. A solution methodology based on an optimization technique-simulated annealing is also proposed to determine the size of fi lters with minimum cost. As a result, the proposed solution methodology can off er the optimal size and minimum cost of design fi lters. In conclusion, a solution algorithm is developed to derive the global optimal solution and test on a 69kV industrial power system with highly promising results.

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“…Basic, Ramsden, and Muttik (1999) proposed many solutions, such as use of higher-pulse converters, modification of electric circuit configurations, choice of transformer connections, and application of harmonic filters. Gonzalez and McCall (1987) utilized PHF suppressing the harmonic distortion. It not only provided low impedance shunt paths for harmonic currents, but also gave reactive power compensation at the fundamental frequency.…”

Section: Introductionmentioning

confidence: 99%