control system

The sucker-rod oil pumping unit productivity is influenced by lots of factors, including the operation mode of the jack pump electric drive system. Settings of the electric drive system affect the system’s energy indicators, overhaul period and oil production volume. Therefore, an effective operation of oil production units is an important factor influencing the cost of the produced oil. The paper proposes a method of selecting the speed of the driving motor of the jack pump electric drive that allows balancing the sucker-rod oil pumping unit productivity and the reservoir flow rate.

The method of measurement and evaluation of electrical parameters a larg antenna systems for ultra-high frequency bands is developed, that were not provided for the use of such antennas by their design. For ensure the necessary radio parameters in professional antenna systems (AS) use parabolic antenna reflectors with large diameters of 5 to 12 meters or more. The creation of such antennas require large expenditures for their production and metrological support by parameters setting.

Forming of network organizationally-productive structure which embraces the row of
subdivisions of interrelated enterprises and general process of production from supply of
components to the final products is considered in the article. For the territorial forming of
organizationally-productive structures a characteristic transition is to network organization of
business processes, which brightly shows up in activity multinational corporations. Expansion
of organizational and atomistic organizations accompanied by minimization of mutual

The control system of electric drives has been analyzed. Method of tuning speed feedback ad-justing was developed. The result can be used for the designing new systems of electric drives

Most authors have ignored the effect of rotatory inertia and shear deformation. This practice is justified for slender flexible arms. According to the Timoshenko beam theory, the deflection due to shear force and rotatory inertia should be taken into account in modelling for high speed and high precision requirement when the ratio of the cross-sectional dimensions to length increases.

The essence of business conflicts’ origin is disclosed. The classification is given and
accounting of signs for detection of business conflicts in the construction of the local control
subsystem for state of economic protectability of enterprise is offered. The mathematical
description of the signs of business conflicts is used for their precise quantitative evaluation at the
current time and the possible warning in the future in the analysis of activity of economic entities.

This paper belongs to the field of systems engineering and is aimed at improving the qualitative indices of vector data information technologies (e.g. 2D vector data coding design) with respect to reliability, precision and other significant operating characteristics of the systems based on the combinatorial configurations theory, namely the Ideal Ring Bundles (IRB)s.