Scientific Journal of KubSAU

Polythematic online scientific journal
of Kuban State Agrarian University
ISSN 1990-4665
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Name

Atroshchenko Valery Aleksandrovich

Scholastic degree


Academic rank

professor

Honorary rank

Organization, job position

Kuban State Technological University
   

Web site url

Email

atroschenko@kubstu.ru


Articles count: 10

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191 kb

ANALYSIS AND ACCOUNTING OF POWER LOSSES WHEN ENERGY TRANSIT AND THEIR DISTRIBUTION AMONG PARTICIPANTS OF ENERGY EXCHANGE

abstract 1331709060 issue 133 pp. 786 – 796 30.11.2017 ru 340
The work is done in scientific and practical directions for minimization of power losses in transmission of electricity to local distribution networks between the actors of the energy (producers and consumers) of energy-saving technologies focused on technological activities such as modernization and reconstruction of networks. Quite often in various circuits of power systems, it is advisable to transfer energy and its power through intermediate (transit) nodes. Structural changes in the electricity sector, at present, are mainly associated with the introduction of market relations between the subjects of energy exchange; therefore, in this work special attention is paid to the problem of calculating the power losses, as it is nonlinearly dependent on the power at the nodes and branches of a network. It should be noted that the nodes in problems transit capacity could be both sources and consumers. The latter necessitated the need for search of possible ways to reduce transportation losses of energy due to both the improvement and optimization of distribution networks and through the use of intermediate transit nodes. It follows that the transportation problem in this formulation is more General and expands the possibilities of optimization of power losses for the local subsystems of the energy clusters. The work is composed of the transport matrix for solving problems transit capacity, where the algorithm taking into account the distinctive features of which consist in the use of continuous numbering of sources and consumers in the matrix, and any node can be a transit country. The transit capacity ii-th node Zii=0, and the dimension of the matrix in contrast to the previously considered tasks has (n+m) (n+m) and it remains square as all the transport problems of linear programming. Transit variables Xii are included in the solution of the problem with a minus sign, and all transit variables are considered basic. From the above example in the work of a number of branches of a network is minimal, which significantly reduces the cost of building and maintaining the network, and the solver minimizes the power loss between the subjects of energy exchange and, as a result to savings from the standpoint of cost of construction of the network and the management of overflows of energy in it
306 kb

DEVELOPING OF AUTOMATED INFORMATION SYSTEM FOR CALCULATION OF MILES PER GALLON FOR DIESEL POWER STATIONS

abstract 0691105008 issue 69 pp. 83 – 92 30.05.2011 ru 1472
In this article, problems of multiparameter fuzzy systems’ state forecasting are reviewed. The algorithm of selection of the equipment on significant parameters of the engine is given
200 kb

LINEAR PROGRAMMING PROBLEM DESCRIBING THE MINIMIZATION OF POWER LOSSES IN TRANSMISSION OF ELECTRICITY FROM SOURCES TO CONSUMERS

abstract 1241610027 issue 124 pp. 472 – 483 30.12.2016 ru 481
The work is done in a scientific and practical ways to minimize power losses in the transmission of electricity in the interregional distribution networks from the sources to the consumer by the use of tasks, ensuring the gradual improvement in the support program, not only from the standpoint of the efficiency of reduction of transported power loss, but also due to a significant decrease the complexity of the calculations. The resulting shortage of electricity power associated with its transfer to the electricity networks, has demanded the need to find possible ways of reducing the value of electricity losses during transportation, both by improving and by optimizing distribution net-works schemes. Consolidation into a single set of electrical equipment, called the power cluster is connected to the sources of power and energy consumption, make better use of new principles of control technology and the transmission of electricity, on the basis of an automated monitoring system, ensuring the redistribution of energy flows and optimize them. The process of electric power transmission and reduction in electric power loss can be considered on the basis of linear programming problems, and their modification in the form of a transportation problem, and as a result, the transport matrix. On this basis, manipulating the data table, we can find acceptable solutions, well and then determine the best of them. As examples, this work has carried out the study on the basis of the three methods - "northwest corner", the method of minimum unit cost of electricity transport, as well as the method of the potential. The use of these three methods yielded acceptable solutions, to identify the most appropriate for the number of steps carried out at the decision, to reveal that the winner is the potential cost method
267 kb

MAINTENANCE OF PERIODICITY DEFINITION OF INTERNAL COMBUSTION ENGINE DEPENDING ON THE FREQUENCY MODEL PARAMETERS OF THE FILTER

abstract 0941310047 issue 94 pp. 704 – 717 27.12.2013 ru 1446
In this article we study connection between frequency characteristics of oil filter and lubricant system condition of internal combustion engine. Method is suggested, it allows to trace changes of technical condition of oil filter, engine oil, engine and to estimate a residual resource of working capacity up to maintenance
573 kb

MAINTENANCE PERIODICITY DEFINITION OF INTERNAL COMBUSTION ENGINE DEPENDING ON THE MAXIMUM PRODUCTIVITY OF THE FILTER

abstract 0921308023 issue 92 pp. 358 – 370 31.10.2013 ru 1430
In this article we study the connection between pollution extent of oil filter, hydraulic resistance and medium value of filter capacity for a certain period. We established following: if the maximum productivity of the filter is decreased, that maintenance of internal combustion engine is necessary. This value is connected with maintenance periodicity
193 kb

MODEL OF INFORMATION SECURITY FOR CONTROL PROCESSES OF COMPUTER NETWORKS

abstract 1101506117 issue 110 pp. 1803 – 1811 30.06.2015 ru 773
In order to improve the security of information transfer we have offered one of the possible approaches to modeling process control computer networks with elements of intelligent decision support. We proceed from the graph model of network nodes which are network devices with software control agents, and arcs are logical channels of information exchange between the equipment computer systems. We built an addressless sensing technology which ensures the completeness of monitoring of all network equipment. To classify the computer networks state we provided a method for calculating the values of reliability. Development of signal mismatch triggers the control cycle as a result of which the adjustment of the state of network equipment. For existing tools we proposed adding network control expert system consists of a knowledge base, inference mechanism and means of description and fill in the knowledge base
464 kb

RESEARCH, EVALUATION AND SELECTION TECHNICAL CONDITION PARAMETERS OF THE ENGINE AT THEIR CONTROL AND FORECASTING

abstract 1041410078 issue 104 pp. 1037 – 1056 30.12.2014 ru 747
The article proposes a method of research, evaluation and selection of priority parameters for monitoring and prediction of a technical condition of engines using the method of factor analysis
205 kb

THE ISSUE OF DATA COLLECTION IN ELECTRICITY SYSTEMS

abstract 0841210065 issue 84 pp. 844 – 854 28.12.2012 ru 1354
The article discusses the two ways to scaling storage chronological data systems. The formulas for calculating the optimal duration of the period (to split the data by period) and the maximum allowable rate for guaranteed preservation in the system are presented
250 kb

TO THE QUESTION OF FINDING THE OPTIMAL POWER LOSS ELECTRIC POWER NETWORKS BASED UPON SOLUTIONS OF TRANSPORT PROBLEMS BY THE POTENTIAL METHOD

abstract 1201606059 issue 120 pp. 870 – 887 30.06.2016 ru 444
The work is scientific and practical in nature, same as the discussed process of optimization of power losses in power networks based on the use of the transportation problem, namely the rules of the minimum element of the transport matrix, which is a valid solution. The mechanism of the improvement of the obtained feasible solutions to the tasks focuses on using the potential method, assigning each row and column of the matrix their corresponding potential. Using a basic variable and manipulating the elements of the transport matrix according to a specific algorithm, we implement the construction of a new support plan. Based on the plan and its acyclic, we build two cycles and determine the values of the estimates between direct and indirect transportation costs per unit of output. The resulting algorithm makes it easy to program all computational operations and quickly obtain the result of the optimization of power losses in the design of the electricity network, thereby reducing the economic and technological costs. As a result of joint use of transportation problems and potential method, we could find the optimal solution based on improved solutions more efficiently, and a scheme of optimal electric network. As consumers, in practice, there may be urban and agricultural, industrial enterprises, regional and district subordination, including industrial, agricultural and individual customers
150 kb

TO THE QUESTION OF THE ORGANIZATION OF DISTRIBUTED INFORMATION-ANALITICAL SYSTEMS WITH ELEMENTS OF INTELLECTUAL PROCESSES

abstract 1101506115 issue 110 pp. 1780 – 1788 30.06.2015 ru 865
In the article we have allocated a number of poorly formalized functional tasks that significantly affect the efficiency of the operation of distributed information-analytical systems. The scheme has been developed for the iterative process, which in addition to the automation of the delivery process and the exchange of information between information systems based on grid integration, also includes funds for applied modeling situations on the basis of available information, developing alternatives, multi-criteria decision problems using techniques scenarios and peer review. Obtained during the evaluation of the effectiveness results allow us to control and manage the operation of distributed information-analytical systems with specific problems, as well as to conduct simulations and analytical processing of the results
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