Developing of electric power quality indicators evaluation and monitoring intellectual system

Shklyarskiy, Andrey Y.; Zamyatin, Egor O.; Rastvorova, Julia V.

doi:10.1109/eiconrus.2018.8317202

Cited by 8 publications

(1 citation statement)

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“…A number of works describe the negative influence of the HH components of currents and voltages on the elements of general-purpose power supply systems, [1]- [5] in general and of mines with a powerful 5731 nonlinear load in particular [6]- [10]. The main negative consequences of the action of higher harmonics include: i) the deterioration of indicators of the quality of electrical energy [1]- [5], [7], [9]; ii) additional losses of active power and electricity in the elements of power supply systems, such as supply lines, reactors, power and matching transformers [3], [5], [6]; iii) the influence of non-sinusoidal voltage on industrial electrical equipment is expressed in a reduction in its service life due to accelerated aging of insulation [5], [10]; iv) high probability of disruption of the normal performance of electrical equipment and its failure with low quality of electricity [5], [7], [8], [10]; v) impact on the operating modes of the entire system, as well as on consumers of electrical energy in particular [1], [2], [4], [5].…”

Section: Introductionmentioning

confidence: 99%

Optimization of the structure of filter-compensating devices in networks with powerful non-linear power consumers based on fuzzy logic

Zhilin

Prasol

Саввин

2022

IJECE

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The article presents a solution to the problem of optimizing the structure of filter-compensating devices (FCD) when installed in high-voltage mine networks with powerful nonlinear electrical receivers. The urgency of the problem of choosing a rational structure of the FCD. The problem of choosing the design and installation location of the FCD is presented. The main technical means of compensation of higher harmonics of currents and voltages in high-voltage networks with powerful nonlinear electrical receivers are considered. Analysis of different types of passive filters (PF) and their frequency properties showed that the choice of specific types of PF refers to the multi-criteria optimization problem. The main methods of optimization of FCD design are considered. The variant of FCD construction based on the solution of multi-criteria optimization problem with the use of fuzzy sets is proposed and justified. To this end, the calculation of PF parameters and frequency characteristics of equivalent systems of the "filter-external network" type for four possible combinations of PF is performed. The optimal is a FCD with two resonant PF tuned to the 11th and 13th harmonics, and a second-order broadband PF tuned to compensate harmonics starting from the 23rd and above. The analysis of simulation results showed effective compensation of higher harmonic currents and voltages.

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Section: Introductionmentioning

confidence: 99%

Optimization of the structure of filter-compensating devices in networks with powerful non-linear power consumers based on fuzzy logic

Zhilin

Prasol

Саввин

2022

IJECE

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Metrological support management quality assessment

Smirnova

Strizhova

2019

J. Phys.: Conf. Ser.

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The article presents data on assessing metrological support management quality based on the probabilistic approach. Assessing event probability can be additional important information in planning and analyzing complex processes such as metrological management. The analysis was carried out by comparing the requirements for metrological support with information about real situations. Requirements for metrological support are developed on the basis of regulatory legal acts, company management instructions, optimization of resource consumption, as well as taking into account company development prospects. To a large extent, the achievement of metrological support goals depends on management quality. The final step in assessing the quality of metrological support management is development of the results of assessment and formulation of conclusions (recommendations).

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Improvement of the frequency converter’s equivalent circuit when calculating non-sinusoidal modes

Belsky

Dobush

Zamyatin

2020

J. Phys.: Conf. Ser.

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The issues related to modeling a variable frequency drive are discussed in the article. The authors were faced with the task of determining the influence of the drive load on the parameters of its equivalent circuit. An unambiguous dependence of the drive load on the value of the current’s harmonic components is revealed. Namely, the smaller the load, the greater the value of the current’s higher harmonics. It has been established that disregarding drive loading can lead to a 19% error in modeling the frequency converter current consumption. It is shown that the results of the study can be extended to a wide range of drives in terms of power, since all calculations were performed in relative units.

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Developing of electric power quality indicators evaluation and monitoring intellectual system

Cited by 8 publications

References 0 publications

Optimization of the structure of filter-compensating devices in networks with powerful non-linear power consumers based on fuzzy logic

Optimization of the structure of filter-compensating devices in networks with powerful non-linear power consumers based on fuzzy logic

Metrological support management quality assessment

Improvement of the frequency converter’s equivalent circuit when calculating non-sinusoidal modes

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