Analysis of UPS impact on power quality at point of common coupling of consumers

Belsky, A. A.; Dobush, V. S.

doi:10.1109/meacs.2015.7414877

Cited by 7 publications

(4 citation statements)

References 2 publications

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“…The data in Table 2 show that the distortion current ratio is almost equal to the nonlinear load power ratio. The ratio of distortion currents characterizes the ratio of voltage distortions, as follows from Equations (1) and (2). Thus, the developed method based on the application of the harmonic filter allows one to determine the contribution of consumers to the voltage distortion.…”

Section: Resultsmentioning

confidence: 99%

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Distortion Load Identification Based on the Application of Compensating Devices

et al. 2020

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The article provides an analysis of the existing methods of identifying the consumer's contribution to voltage distortion at a point of common coupling. The considered methods do not allow correctly and fairly determining the source of harmonic distortions, or they have limited application and difficulties in implementation. The paper proposes new methods for determining the source of high harmonics. The developed methods and techniques are based on the analysis of the grid operation modes with two connected consumers using compensating devices, such as reactive power compensation devices and passive harmonic filters. It is shown that the most promising method is the application of harmonic filters, which allows determining the share of the consumer's contribution to the voltage distortion. The present research is carried out using a computer simulation of the existing electrical grid, to which consumers with nonlinear electric load are connected. These methods can be implemented to assess the power quality and the shareholding of different consumers connected at the point of common coupling. Furthermore, such methods appear to be feasible, as almost every enterprise currently has such facilities in operation.

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Section: Resultsmentioning

confidence: 99%

“…Currently, the power quality problem is widespread, since modern equipment based on the operation of semiconductor converter technology is being implemented in many enterprises [1,2]. The power quality has a significant impact on the operating conditions of the electrical grid and technological equipment [3,4].…”

Section: Introductionmentioning

confidence: 99%

Distortion Load Identification Based on the Application of Compensating Devices

et al. 2020

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“…First of all, it is suitable for objects located in remote areas. Recently, due to a decrease in the reliability of external power supply and a constant increase in electricity tariffs, the transfer to autonomous power supply has become a priority in the electric power industry of oil and gas and other industries [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Monitoring the technical condition of autonomous electrical systems with electric drive

Korolev

Соловьев

2019

E3S Web Conf.

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The article discusses the structure of autonomous electrical systems with an electric drive and an electric energy generation system. An approach is described for assessing the overall efficiency of technological cycle equipment with specification of parameters that must be considered when calculating it. The necessity of taking into account energy efficiency and operability indicators of autonomous electric complexes is substantiated. The effectiveness of the use of autonomous systems decreases throughout the entire life cycle due to wear and tear. As the operability of electromechanical equipment, an indicator of the residual resource is selected. The calculation of the residual resource, with the definition of its boundary values and recommendations for further use. Nominal energy efficiency parameters of autonomous electrotechnical complexes with electric drive deteriorate during operation, which also needs to be taken into account. To simplify the assessment of the operational state of electromechanical equipment, a state diagram is presented that allows you to track the dynamics of degradation of individual nodes. Taking into account the described indicators and means of control, it is possible to increase the efficiency of using autonomous complexes.

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“…Большинство этих недостатков решены для систем электроприводов с высокими требованиями по динамике большой и сверхбольшой мощности. При этом мало внимания уделяется электроприводам малой и средней мощности собственных нужд и общепромышленного применения, что приводит к нерациональным затратам электроэнергии от 5 до 15% [5,6]. Также это приводит к ускоренному износу, ухудшению качества регулирования и в дальнейшем к аварийной остановке, что составляет дополнительные затраты предприятия.…”

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Development Features of the Diagnostic System for Variable Frequancy Drive

Korolev¹,

Zhukovskiy²

2019

DSMM

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Analysis of UPS impact on power quality at point of common coupling of consumers

Cited by 7 publications

References 2 publications

Distortion Load Identification Based on the Application of Compensating Devices

Distortion Load Identification Based on the Application of Compensating Devices

Monitoring the technical condition of autonomous electrical systems with electric drive

Development Features of the Diagnostic System for Variable Frequancy Drive

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