Improving the Power Quality of Rural Consumers by Means of Electricity Cost Adjustment

Author(s):  
Alexander Vinogradov ◽  
Maxim Borodin ◽  
Vadim Bolshev ◽  
Natalya Makhiyanova ◽  
Nadezhda Hruntovich

Improving power quality of agricultural consumers by adjusting the cost of electricity is considered. The chapter lists the reasons for the output of power quality indicators beyond the standard values. There is the assessment of the quality of electricity in the Orel region. Distribution functions for distortion of power quality indicators are constructed. The relevance of the adjustment of the cost of electricity depending on its quality is justified. The mathematical model for determining the cost of consumed electric energy depending on its quality is developed in chapter. The chapter gives the method allowing to adjust the cost of consumed electric energy depending on its quality and source of distortion. In the chapter, there is the mechanism of carrying out calculations for the consumed and transferred electric power considering change of electric power cost depending on its quality. The feasibility study of the proposed methods and means of improving power quality is realized.

2019 ◽  
Vol 140 ◽  
pp. 04010 ◽  
Author(s):  
Egor Zamyatin ◽  
Irina Voytyuk ◽  
Elena Zamyatina

The cost of any product includes the cost of electrical energy in its production. Enterprises use various methods to reduce the cost of electric energy. One of the most common methods is to reduce the loss of active power in the distribution network of an enterprise. This is achieved by compensating for distortions in the power quality of electrical energy using compensating devices. The method presented in the article offers point compensation of distortions in the power quality indicators of electric energy. Point connection of compensating devices allows their small number to be used. But, at the same time, a greater effect is achieved. The connection points of compensating devices are determined by the developed method. The method includes three stages: collecting data on consumers of electric energy at an enterprise and on the topology of the distribution electric network, analyzing the results obtained using the developed algorithm, and determining connection points using the Pareto method. Also, the developed method was compared with the classical ones according to the criterion of the ratio of implementation costs to the effect of its application.


2021 ◽  
Vol 14 (1) ◽  
pp. 299
Author(s):  
Anton Petrochenkov ◽  
Aleksandr Romodin ◽  
Dmitriy Leyzgold ◽  
Andrei Kokorev ◽  
Aleksandr Kokorev ◽  
...  

The problem of the quality of electric energy in the utilization of petroleum gas is considered. The article presents the results of the development of a mathematical description of power supply systems with gas turbine power stations based on two-shaft gas turbine units. The typical power distribution scheme of a gas turbine power station is given. The joint analysis of the generation modes of the gas turbine power station and the detected deviations of the power quality indicators values was carried out. The influence of the used mode on the power quality indicators is determined. As a result, the factors of operation of a gas turbine power station that affects power quality are identified, and recommendations for their elimination are given.


2012 ◽  
Vol 19 (1) ◽  
pp. 39-48 ◽  
Author(s):  
Jarosław Zygarlicki ◽  
Janusz Mroczka

Variable-Frequency Prony Method in the Analysis of Electrical Power QualityThe article presents a new modification of the the least squares Prony method. The so-called variable-frequency Prony method can be a useful tool for estimating parameters of sinusoidal components, which, in the analyzed signal, are characterized by time-dependent frequencies. The authors propose use of the presented method for testing the quality of electric energy. It allows observation of phenomena which, when using traditional methods, are averaged in the analysis window. The proposed modification of least squares Prony method is based on introduction and specific selection of a frequency matrix. This matrix represents frequencies of estimated components and their variability in time.


2020 ◽  
Vol 11 (7-2020) ◽  
pp. 58-66
Author(s):  
Vera V. Yaroshevich ◽  
◽  
Aleksei S. Karpov ◽  
Galina P. Fastiy ◽  
Sergei V. Smotrov ◽  
...  

The systematization and analysis of the results of monitoring registrations of electric power quality indicators (PQS) on substation buses feeding large industrial enterprises of the Murmansk region was carried out. The example of existing substations shows the problems of high-energy facilities that have consumers with non-linear parameters. The problems of electromagnetic compatibility of industrial consumers with the mains have been identified. The need for research to identify the causes of non-compliance is proved. A number of the most common and effective measures to limit the distortion of the SCE are proposed.


2021 ◽  
pp. 75-86
Author(s):  
A. Gai ◽  
◽  
V. Gulevich ◽  

Today, the electricity supplier is not able to declare the possible level of quality of electricity supply, and the consumer simply does not have the opportunity to buy such "high-quality" electricity. In such conditions, a differentiated approach to tariff formation is inevitable, which has been implemented in practice today, albeit in its infancy. Further improvement of the tariff-forming mechanism is impossible without creating a "flexible" dependence of the tariff on the quality indicators of the consumer's power supply. Quality indicators, in turn, are based, on the one hand, on the methods and approaches for their determination, and on the other, on statistically reliable data on the elements that make up the equipment in the "generation-consumer" chain. In recent years, there has been a tendency to change the concept of development of the electric power industry, since preference is given to the development of sources of distributed generation. Distributed generation is understood as a source of electrical energy directly connected to the distribution electrical network or connected to it by consumers. Ensuring the socio-economic stability of society and a decent quality of life for the population largely depends on the reliability and efficiency of the functioning of the infrastructure for the supply of fuel and energy resources, in particular, electricity. Excessive losses of electricity during its production, transportation and distribution, as well as an unacceptable level of harmful emissions into the atmosphere, are the cause of interruptions in power supply to consumers and even the threat of systemic accidents in the United Energy System (UPS) of the country. The introduction of alternative energy sources in electric power systems, in addition to reducing the harmful impact on the environment and solving the problems associated with waste pollution during electric power generation, will reduce the use of natural resources and relieve the backbone and distribution power lines. As part of the scientific search, an approach was proposed, which is the basis for calculations to determine the optimal installation locations for sources of distributed generation of an average overhead line. The results obtained are presented in the framework of a joint technical meeting of leading specialists of operating enterprises, the customer and the staff of the Department of Power Supply named after V.M. Sinkova NULES of Ukraine.


2021 ◽  
pp. 44-49
Author(s):  
A. G. Soshinov ◽  
T. H. Aisin

Work on ensuring the quality of electric energy in accordance with the requirements of GOST 32144-2013 is currently relevant and requires prompt and high-quality solutions. The article lists the main consumers of electric energy that negatively affect its quality, provides the results of measurements of electric energy quality indicators and the most common violations of regulatory requirements, analyzes the influence of voltage asymmetry on the operating conditions of electrical equipment. The basic formulas for calculating the asymmetry coefficients and ways to reduce the voltage asymmetry are proposed.


Sign in / Sign up

Export Citation Format

Share Document