Evaluation of Series and Parallel Hybrid Filters Applied to Hot Strip Mills With Cycloconverters

Antunes, Hélio M. A.; Pires, Igor A.; Silva, Sidelmo M.

doi:10.1109/tia.2019.2932966

Cited by 16 publications

(13 citation statements)

References 12 publications

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“…where 𝑉 𝑛 is the unbalanced voltage on the phases of active filter acquired from grid phase imbalance. On the other hand, the unbalanced voltage can be computed from the zero-sequence voltage of the line in (2). Parallel structured inverters and the SAPF filter coupling with the grid have similar characteristics, which are all affected by the condition of resonance and have remained the focus of research [6,[22][23][24].…”

Section: Sapf Designmentioning

confidence: 99%

“…As a solution to this problem, passive filters were commonly used for harmonic suppression in earlier times. However, as these filters have a high switching resonance effect [2][3][4][5], the idea of using active filters has been given greater significance in filtering performance; still, because active filters also have maintenance issues, resonance effects, and less effect in large scale loads, the combined effects of active and passive power filters have gained prominence in recent times [2,4,6,7].…”

Section: Introductionmentioning

confidence: 99%

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Intelligent Tuned Hybrid Power Filter with Fuzzy-PI Control

Lin

Simachew

2022

Energies

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With the growing impact of power regulators, machines, and other power electronic devices on the quality of utility electric service, harmonics has recently emerged as a major research topic in the area of power quality and energy consumption. In this work, a fuzzy intelligent inductor–capacitor–inductor hybrid power filter is designed to reduce harmonics in the distribution line. The shunt active power filter and passive filter design and consideration have been improved. Since the nature of proportional integral control is only efficient with linear variations and the real condition of the distribution system is always varying nonlinearly, to create a minimum steady error, fuzzy-tuned proportional integral control is designed to intelligently consider the input changes and revise the decision rules using fuzzy reasoning. The content of the harmonic current with respect to the varying load is momentarily commutated. Thus, using Clarke’s transformation, the errors are summed with instantaneous power that is converted to a compensation current with the hysteresis band monitored pulse generator. The output current would turn off and on the IGBT inverter’s switches, supplying the current to reject the harmonics. The overall work was tested using MATLAB/SIMULINK® and was effective in canceling harmonics.

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Section: Sapf Designmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Intelligent Tuned Hybrid Power Filter with Fuzzy-PI Control

Lin

Simachew

2022

Energies

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“…Generally, in mitigating current harmonics, the APF cancels the low-order harmonics while the passive filter eliminates the others [44,45]. Nevertheless, there are many HPF topologies, as discussed in [4,44,67,68]. Furthermore, HPFs allow suppressing harmonic resonances in industrial facilities with tuned passive filters installed [69].…”

Section: Types Of Filtersmentioning

confidence: 99%

Trends in Power Quality, Harmonic Mitigation and Standards for Light and Heavy Industries: A Review

Lumbreras

Gálvez²,

Collado³

et al. 2020

Energies

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The power quality of electrical grids is becoming an important issue worldwide. The electrical grid has to deliver sinusoidal voltages and currents without frequency or amplitude variations. However, the connection of non-linear loads generates harmonics that degrade the grid quality. The presence of harmonics in the load currents has many negative consequences and can distort the voltage waveform at the point of common coupling (PCC). Thus, it is essential to mitigate the harmonics in order to maintain a suitable grid quality. This is a shared responsibility between energy suppliers, manufacturers of electric and electronic equipment, and users. In this context, this work presents, for each stakeholder, a comprehensive analysis of their responsibilities and the standards that they should meet. Additionally, this paper reviews the most common types of filters used to comply with the applicable standards in industrial applications. Finally, in order to prove that active power filters allow maintaining good power quality in all types of grid, commercially available active power filters were installed in three different grids contexts: an office building, a factory, and a stadium with a large number of LEDs. The experimental results obtained were used to evaluate the impact of active filters on grid quality. This review would help users to overcome their grid distortion problems.

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“…Harmonic spectral components vary based on amplitude and output frequency in a cyclo-converter drive. Inter harmonics that are present near the fundamental frequency increases to about 40% of the fundamental when cyclo-converter drive is operated and it leads to high power losses in transformer [9][10][11].In direct AC-AC Power conversion systems, STATCOMs (static compensators), Active Filters and Hybrid Filters are employed to compensate the effect of the harmonics and inter harmonics produced in cyclo-converter [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Harmonic Research in Direct AC – AC Variable Frequency Power Converter

2019

IJRTE

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Direct AC-AC converter circuit termed as cyclo-converter converts fixed AC voltage, fixed frequency into variable AC voltage, variable frequency without using intermediate DC link. Cyclo-converter generates considerable harmonics when operated at variable frequency and load. The impact of harmonics is studied at multiples of lower order frequencies and firing angle. Simulation studies are performed and harmonic spectrum, Total Harmonic Distortion (THD) are diagnosed by employing MATLAB/SIMULINK platform. The Hardware prototype is implemented and the voltage waveform, harmonic profile is analyzed in real time using power logger

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Evaluation of Series and Parallel Hybrid Filters Applied to Hot Strip Mills With Cycloconverters

Cited by 16 publications

References 12 publications

Intelligent Tuned Hybrid Power Filter with Fuzzy-PI Control

Intelligent Tuned Hybrid Power Filter with Fuzzy-PI Control

Trends in Power Quality, Harmonic Mitigation and Standards for Light and Heavy Industries: A Review

Harmonic Research in Direct AC – AC Variable Frequency Power Converter

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