A Method of Calculating LC Parameters of Balancing Compensators for AC Arc Furnaces

Bhattarai, P.

doi:10.1109/tpwrd.2016.2536681

Cited by 17 publications

(4 citation statements)

References 19 publications

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“…Semiconductor elements that generate mostly «white noise» are poorly suited for the usual Fourier analysis. Its low accuracy may affect the failure of semiconductor voltage sensors that are used in systems of APM, smart home, smart city, lean manufacturing, and others [15][16][17][18]. Given that above things are being developed and placed everywhere, elimination of frequency noise and its diagnosis will be a priority in near future.…”

Section: Processing Of Results and Conclusionmentioning

confidence: 99%

Analysis of power quality in presence of frequency distortions

et al. 2020

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Today, semiconductor elements are becoming more popular in power supply networks. Their presence in any objects of electrical equipment provides high performance with high operating efficiency. However, modern research shows the semiconductor element base negatively affects quality of electricity when they are used in parallel. In lowand medium-voltage networks, this is fraught with the appearance of frequency «noise», which negatively affects parameters equipment with presence of latter, as well their control system. To detect them, a special approach is necessary, since such harmonics can appear both from directly semiconductor elements and from operating mode of equipment where element base is applied. The purpose of this article identifies higher harmonic distortions generated by objects containing semiconductor elements.

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Section: Processing Of Results and Conclusionmentioning

confidence: 99%

Analysis of power quality in presence of frequency distortions

et al. 2020

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“…Thus, it satisfies the cognitive aspect of the power theory. It was, moreover, the first PT that solved [10] the problem of reactive compensation in the presence of harmonic distortion, as well as it solved the problem of balancing compensator synthesis for three- [14], [43] and for four-wire [37] systems. Thus, it satisfies the practical aspect of the power theory.…”

Section: Comments On Some Power Theoriesmentioning

confidence: 99%

Why the power theory has a limited contribution to studies on the supply and loading quality?

Czarnecki

2018

2018 18th International Conference on Harmonics and Quality of Power (ICHQP)

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Studies on the power theory and studies on the supply quality and the loading quality refer to the same object, namely, to systems with nonsinusoidal and asymmetrical voltages and current, but from a different perspective and with different objectives. One would expect that the power theory, focused on power properties of electrical systems, will provide theoretical fundamentals for studies on the supply quality and the loading quality. It has occurred, that these studies were not supported substantially by the power theory, however. A major lag in the development of the power theory over the whole XX century was the main cause of it. Even worse than that, a number of misconceptions regarding power properties of electrical systems were disseminated in the electrical engineering community. An overview of such misconceptions that could have a detrimental effect on studies on the supply quality and loading quality in electrical systems is presented in this paper. A draft of the Currents' Physical Components (CPC)-based power theory of electrical systems, which provides interpretation of powers related physical phenomena, is presented as well.

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“…In addition, thanks to the distribution of the current into individual components, it is possible to analyze the circuit in various situations that occur in real systems [27][28][29][30]. Based on the CPC theory, power compensation methods have been developed [31][32][33] and special attention should be paid to [34][35][36]. When changes in electrical parameters in the circuit are taken into account, adaptive algorithms [25,26] are very important.…”

Section: Introductionmentioning

confidence: 99%

Decomposition of the Voltages in a Three-Phase Asymmetrical Circuit with a Non-Sinusoidal Voltage Source

Zajkowski,

Duer

2023

Energies

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This article presents the concept of a mathematical description of a three-phase, four-wire asymmetrical electric circuit in decomposition into Voltages’ Physical Components (VPC), associated with distinctive physical phenomena in the load. This is an alternative method of mathematical description to the Currents’ Physical Components (CPC) still being developed since the end of the last century. According to previous studies, the improvement of the power factor in three-phase systems is possible by observing several components. Compensation for the scattered power is possible only by using a reactive compensator connected in series with the load. Thanks to the presented analytical method, it is possible to design compensators connected in series with the load. The VPC power theory opens the possibility of improving the power factor in three-phase networks for loads with asymmetry between phases. Due to the unfavorable impact of high currents on the compensator branches, the method proposed in the article can improve the energy quality in local low-power grids. However, the possibility of its practical use in high-power industrial networks is questionable.

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A Method of Calculating LC Parameters of Balancing Compensators for AC Arc Furnaces

Cited by 17 publications

References 19 publications

Analysis of power quality in presence of frequency distortions

Analysis of power quality in presence of frequency distortions

Why the power theory has a limited contribution to studies on the supply and loading quality?

Decomposition of the Voltages in a Three-Phase Asymmetrical Circuit with a Non-Sinusoidal Voltage Source

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