PNRPU Bulletin. Electrotechnics, Informational Technologies, Control Systems

In the article is proposed increasing of the LUT FPGA reliability by using by way of using the second-half of the tree of the transmitting transistors. Complexity and authenticity of functioning s is evaluated. The effectiveness of the proposed approach shows.

In this paper, two-dimensional problem was solved transient heat and mass transfer processes for cable lines laid in a rectangular duct in the airspace under natural convection. The problem is solved using the finite element method in the software package ANSYS Fluent. The verification of the proposed mathematical model by the convergence of the numerical method. Investigated the influence of thermal insulation properties, as well as the influence of the location of cables in cable ducts for the duration of cable lines. The temperature field and velocity field in the duct depending on the location of cable lines.

This article discusses the basic methods of optimization of the local electric active-adaptive network. In a locally active - adaptive network determined the optimal mode of distribution of electricity from generators to consumers, as well as solved the problem of optimizing the allocation of the total power method of the transportation problem. The calculation is performed on the four generators of electricity and six customers, two of which are residential customers, and four electric drives. Work is educational research and based on the complex HIL local active-adaptive network, implemented on the basis of laboratory equipment chair of MSA PNRPU. The work was performed as part of the grant of the President of the Russian Federation for state support of young Russian scientists - candidates, MK-5279.2014.8 "Synthesis of efficient technologies for remote monitoring and managing of intellectual power system with active-adaptive network".

In this article we consider a model of the synchronous motor, implemented in Simulink environment of mathematical package Matlab. Here are the equations of the mathematical model of the synchronous motor and the results of its start at different levels of the supply voltage. Made a comparative analysis of the results. It is concluded that the model used to analyze the dynamic properties of the synchronous motor is efficient.

The synthesis and simulation of systems of vector control of an induction motor are discussed. The structure of the vector control and configuration steps of speed and current regulators are shown. Special attention is paid to the study of the individual components of the control system related to compensation of cross-connections and torque limit. Еhe implementation of a comprehensive model of the control system in the Matlab/Simulink simulation environment is done. The simulation results Presented and analyzed that confirm the correct configuration of the control system. The proposed approaches and the models allow to debug the design frequency control systems before carrying on the microcontroller. The results are planned to complement with usage of algorithms for automatic identification of model parameters of the motor and to engage in the development and study of sensorless control systems of AC drives.