scholarly journals INTELLECTUALIZATION OF ELECTRICITY METERING AS A TOOL TO REDUCE ELECTRIC POWER LOSSES

2021 ◽  
pp. 51-56
Author(s):  
NATALIA VIKTOROVNA SAVINA ◽  
◽  
VLADIMIR ALEXANDROVICH GAMOLIN ◽  
LARISA ANATOLIEVNA MYASOEDOVA ◽  
◽  
...  
Keyword(s):  
Electric Power ◽  
Electrical Energy ◽  
Smart Metering ◽  
Power Losses ◽  
Electric Grid ◽  
Grid Systems

Given the ever-increasing cost of electrical energy, minimizing of power losses is one of the main tasks for the electric grid systems. In this paper, we consider the features of intellectualization of electricity metering and the effect of the introduction of smart metering systems in terms of reduction of power losses.

scholarly journals Development of the system of visual control of electric power consumption by electric rolling stock

2018 ◽  
Vol 239 ◽  
pp. 01035 ◽  
Author(s):  
Stanislav Istomin ◽  
Artem Perestenko ◽  
Cong Dang
Keyword(s):  
Power Consumption ◽  
Electric Power ◽  
Electrical Energy ◽  
Visual Control ◽  
Electric Power Consumption ◽  
Rolling Stock ◽  
Power Losses ◽  
Correct Analysis ◽  
Electric Rolling Stock ◽  
Train Driver

The paper considers the issue of organization of control of electric power consumption by electric rolling stock by visualizing information on the monitor of the driver's console. With the correct analysis of information coming on board of the electric rolling stock, the train driver makes correction of the driving modes of the train in terms of energy efficiency. In this paper, to visualize information on the efficiency of power consumption by an electric rolling stock on the route, the authors propose using an indicator diagram using a green, white, and orange gradient. The variant of output of the final information on the efficiency of power consumption of electrical energy by an electric rolling stock both within the distances operated by the locomotive crews and within the hauls to the monitor of the driver's console is presented. One of the main advantages of using the technology of visual control of electric power consumption by electric rolling stock is the promptness of correction of decision-making on the rational use of energy resources, the identification of objective reasons for the overspending of energy, and the identification of reference results for the driving of trains. The prospect of development of the research topic is the approbation and implementation of the proposed technical and technological solutions in the production, which will reduce the specific consumption and unproductive electric power losses within the boundaries of the railway accounting zones.

The Research on Brittleness Simulation of Electric Grid Systems Based on Chart Theory

2013 ◽  
Vol 798-799 ◽  
pp. 333-336 ◽  
Author(s):  
Ai Hua Xu ◽  
Chen Guang Xue ◽  
Jian Jun Xu
Keyword(s):  
Power System ◽  
Electric Power ◽  
Source Identification ◽  
Electric Power System ◽  
Network System ◽  
Electric Grid ◽  
Grid Systems ◽  
Model Based ◽  
Spread Model

Brittleness source identification is the work of finding every brittle source. The key of analysis of the brittleness of system is to build the brittle model. The chart theory can describe the direction and weigh of the brittle spread model. In this paper, bring forward the method and step of building the brittle model based on the chart theory, build a model of 7 nodes electric power system and analyze it and then obtain the hierarchy electric power system brittle model and the brittle source, and at last verify this method is valid to network system.

scholarly journals Algorithm for reducing additional losses in asynchronous electric drives in plants with static power regulators

2020 ◽  
Vol 23 (4) ◽  
pp. 93-98
Author(s):  
I. A. Khaychenko ◽  
◽  
V. V. Babenko ◽  
Yu. V. Nefedov ◽  
Anh. Tu. Ha ◽  
...  
Keyword(s):  
Electric Power ◽  
Electrical Energy ◽  
Power Losses ◽  
Increase Energy Efficiency ◽  
Industrial Enterprises ◽  
Asynchronous Motors ◽  
Semiconductor Converters ◽  
Wide Range ◽  
Operation Algorithm ◽  
Static Power

The ways to reduce losses of electrical energy in power supply systems of industrial enterprises containing powerful semiconductor converters and asynchronous motors are considered. The source of additional electric power losses related to subharmonic nature of voltage fluctuations from operation of converters using the principle of frequency-pulse control is determined. The operation algorithm for thyristor switches of semiconductor converters is proposed, that provides reduction of electric power losses in asynchronous motors connected in parallel with powerful converters. The voltage graphs and currents of simulation model in operation modes of converters show the potential to increase energy efficiency of operation of a wide range of industrial objects with asynchronous motors, connected in parallel and having cyclically changing load.

scholarly journals Issues on optimization of operating modes of power transformers

2019 ◽  
Vol 124 ◽  
pp. 02015
Author(s):  
A.N. Alyunov ◽  
O.S. Vyatkina ◽  
I.G. Akhmetova ◽  
R.D. Pentiuc ◽  
K.E. Sakipov
Keyword(s):  
Service Life ◽  
Electric Power ◽  
Electrical Energy ◽  
Power Transformers ◽  
Power Losses ◽  
Electric Network ◽  
Operating Modes ◽  
Load Schedule ◽  
Economic Capacity

The article presents measure to optimize the operating modes of power transformers in order to minimize losses of electrical energy. The influence of actual voltage and service life of power transformers on electric power losses is shown. It was proposed to determine the economic capacity of power transformers taking into account the indicated factors, as well as taking into account the time of transformer switching on into the electric network and the form of the load schedule.

scholarly journals Effects of Erratic and Epileptic Electric Power Supply in Nigerian Telecommunication Industry: Causes and Solutions

2019 ◽  
Vol 2 (2) ◽  
pp. 29-35
Author(s):  
C. Agbeboaye ◽  
F. O. Akpojedje ◽  
B. I. Ogbe
Keyword(s):  
Electric Power ◽  
Significant Role ◽  
Power Supply ◽  
Growth And Development ◽  
Distribution Network ◽  
Telecommunication Industry ◽  
Power Losses ◽  
Electric Power Supply

The issue of erratic and epileptic power supply in Nigeria Electricity Company is as old as the country itself. This is not unconnected to some factors such as: inadequate power generated in the national grid, electric power losses in the distribution network, government instability and unstable power reform policies, to mention but a few. The effects of erratic and epileptic power supply have been a major challenge to every sector in Nigeria especially the telecommunication industry. The telecommunication industry plays a significant role in the growth and development of every nation. Hence, this paper aims at critically investigating the causes and effects of erratic and epileptic electric power supply in Nigerian telecommunication industry. More so, the paper suggested and recommended ways to curb and enhance the current erratic and epileptic power situation in the country in order to boost the productivity of telecommunication industry and other sectors as well.

scholarly journals Operation Modes of HV/MV Substations

2009 ◽  
Vol 25 (25) ◽  
pp. 81-86
Author(s):  
Josifs Survilo ◽  
Antons Kutjuns
Keyword(s):  
High Voltage ◽  
Low Voltage ◽  
Warm Season ◽  
Electrical Energy ◽  
Cold Season ◽  
Power Losses ◽  
Medium Voltage ◽  
The Third ◽  
Operation Modes ◽  
Mode 3

Operation Modes of HV/MV SubstationsA distribution network consists of high voltage grid, medium voltage grid, and low voltage grid. Medium voltage grid is connected to high voltage grid via substations with HV/MV transformers. The substation may contain one, mostly two but sometimes even more transformers. Out of reliability and expenditure considerations the two transformer option prevail over others mentioned. For two transformer substation, there may be made choice out of several operation modes: 1) two (small) transformers, with rated power each over 0.7 of maximum substation load, permanently in operation; 2) one (big) transformer, with rated power over maximum substation load, permanently in operation and small transformer in constant cold reserve; 3) big transformer in operation in cold season, small transformer-in warm one. Considering transformer load losses and no load losses and observing transformer loading factor β it can be said that the mode 1) is less advantageous. The least power losses has the mode 3). There may be singled out yet three extra modes of two transformer substations: 4) two big transformers in permanent operation; 5) one big transformer permanently in operation and one such transformer in cold reserve; 6) two small transformers in operation in cold season of the year, in warm season-one small transformer on duty. At present mostly two transformers of equal power each are installed on substations and in operation is one of them, hence extra mode 5). When one transformer becomes faulty, it can be changed for smaller one and the third operation mode can be practiced. Extra mode 4) is unpractical in all aspects. The mode 6) has greater losses than the mode 3) and is not considered in detail. To prove the advantage of the third mode in sense of power losses, the notion of effective utilization time of power losses was introduced and it was proven that relative value of this quantity diminishes with loading factor β. The use of advantageous substation option would make it possible to save notable amount of electrical energy but smaller transformer lifetime of this option must be taken into account as well.

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