Nowadays the high level of electricity losses is one of the most important issues of the energy industry in the Russian Federation recognized at the state level. According to many sources, one of the activities that contribute to reduce energy losses, is their planning, an important component of which is the prediction of electricity losses on the basis of retrospective information. The highest percentage of technical losses of electricity is accounted for distribution network with a voltage range 0,4-35 kV. In this regard, the most productive activity is forecast construction namely of this component of power losses. According to some features of the regarded value (electricity losses) the most effective activity for its forecasting is using methods with artificial intelligence elements. One of these methods, having a number of important advantages, is forecasting fuzzy time series. This technique is widely consecrated in foreign publications, but did not find sufficient popularity in our country. This article analyzes the existing models of forecasting fuzzy time series on the basis of which proposals for their improvement and adaptation in order to predict the loss of electricity are made; designed model of multivariate fuzzy time series forecasting of energy losses is given
The article presents the basic antilogy, which is
attributed to forming an engineering support paradigm
of new technologies related to the subject-oriented
control in the noosphere, between the demand for an
automatical creative thinking of a control subject and
the vigilance of society to possible adverse effects of
its subjective activities. It is stated that the noosphere,
which showed miracles of automation and
cybernation, covers all types of human activities,
excluding above original positions, which they barely
touched. Uppermost it is related to the central
economics problem (economy management) – the
choice. The problem how to build an engineering
support paradigm of subject-oriented control
technologies is analyzed; it is based on the known
subject-oriented control concept supplemented by
concept-based models of the intuition mechanism,
which assume its modeling based on formal systems
with the purpose to automate control subjects mental
activity. From the standpoint of Schopenhauer’s
cognitive theory, a research method is developed to
investigate evolution and becoming of a particular
human category – engineers, which are responsible for
the steady development of noosphere of Vernadsky.
As a basis, a dynamic phylogenesis model of
engineer’s figure was taken, including ready and
effective vectors with parameters (education, intellect,
skills) and (prevision, choice, emergence),
respectively. The results of ontogenesis modeling are
given – regularities in future engineers’ preparation as
a platform for quantization and convolution of its levels based on modern mathematical methods,
including those for support engineers of subjectoriented
control technologies
In the article we have determined the dependence of the extreme mass of the counterweight from me-chanical drive parameters and chart movement of the executive body
The article gives a review of the energy-saving technical device for soil treatment in garden interows along with prestrain zone treatment of two rows
The influence of addition of boiled forcemeat of a squid to raw forcemeat on functional and technological properties of forcemeat is investigated. The formulation of forcemeat for formed semi-finished products of squid is presented. Periods of storage of formed semi-finished products of squid are substantiated
Modern condition agricultural transport (a significant part of it about 70%) is characterized by a strong deterioration of the rolling stock, the unsatisfactory state of the production base. More than 30% of vehicles operated outside the normative service life, the rest approaching to that state. In general, the provision of agrarian and industrial complex with agricultural vehicles is way below agrotechnical requirements. In the long term, farm machine engineering should focus on indicators of the technical level achieved by best samples of foreign agricultural machinery. Priority development is likely to receive the development of innovative technologies that provide a significant increase in productivity, efficiency and resource conservation in agriculture.
To address the shortcomings of transport services agrarian and industrial complex we should improve transport technology with the use of transport logistics, expand and update the existing vehicle fleet, but due to the low solvency of agricultural companies and high prices for of automotive engineering, the problem of providing agricultural vehicles becomes most acute. Thus, the creation of new science-based solutions in technology and engineering for transportation farm produce in terms of Russia's AIC is the actual scientific and technical task that contributes significantly to the development of the country, as well as enhances the enjoyment of breakeven, competitive manufacturing
The article investigates the experience of
implementing automated control systems, which
indicates that at the system design phase, it is difficult
to choose a single criterion of control. Therefore, in the
control system it should be possible to quickly set the
criterion during operation, and methods of assignment
should clearly reflect the agronomic, economic and
technical requirements for the system. Thus, modern
control system should allow to define not only one of
the above control criteria, or a combination, but any
other arising in the production process, providing
agronomist-technologist opportunities in choosing a
method of maintaining temperature and humidity
conditions in the greenhouse. Greenhouse is a fastpaced
environment and the state largely depends on
the intensity of sunlight, humidity, direction and wind
speed, the number of fertilized soil and its humidity.
Competent and correct management of these
parameters is a complex task and involves certain
costs, but in the end allows you to benefit many times
greater than the costs. The developed system called
"Microclimate" will have a positive effect on any
hosted sites, as it allows to increase energy efficiency
and reduce fuel costs for heating greenhouses,
electricity, water
The article deals with the question of experimental studies determining the degree of traction resistance of reversible ploughs, when processing a combined plow. We have determined the optimal geometric dimensions of the developed additional working bodies
experimentally
This article is devoted to solving the critical task of improving the reliability of the power systems for agricultural processing plants. The article’s material is exploratory in nature, reflected in the fact that the proposed mathematical models for the analysis of groups of high-voltage induction motors will allow to investigate various modes of symmetric groups of asynchronous motors more effectively. We present the analysis of the existing mathematical models of induction motors considering the design features of such machines that directly affect the dependence of resistance and inductance on the rotor current frequency. The assumptions taken into consideration to obtain a more accurate mathematical model of the induction motor are also formulated. The article provides a comparison of different reference frames used in the mathematical modeling of asynchronous motors. It is proved that the use of the generalized coordinate vector for mathematical modeling of asynchronous motors is the most optimal approach. The equivalent circuit of asynchronous deep-bar motor in generalized vector coordinates derived in the work is used for analysis of transient behavior as well as the steady state operation. The results of the study are suitable for transient analysis of electrical power supply systems of agricultural enterprises with large number of high-power electric motors, for example, CHP of sugar processing plants and grain elevators
The results of numerical experiments on the simulation of mathematical models of the functioning of the technical and technological systems for heating livestock complex have been presented in the article. The equations that establish a quantitative relationship between process parameters and the parameters of the efficiency of the heating system have been shown