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Pugachev A.,Bryansk State Technical University
2016 Dynamics of Systems, Mechanisms and Machines, Dynamics 2016 | Year: 2016

The short list of requirements to the traction electric drive has to satisfy is highlighted. The topologies and operation principles of two- and three-level voltage source inverters fed a traction induction motor are presented. The brief survey of the frequency converters faults and malfunctions is carried out. The transient modes of electric drives under transistor short-circuit fault and transistor gate drive open-circuit fault in both two- and three-level voltage source inverters are considered. The results of simulation in Matlab are presented for the electric drive with 14 kW induction motor and scalar control system. The transistor gate drive open-circuit fault is shown not to have significant differences for the inverter topologies to be considered. The transistor short-circuit fault in three-level inverter is shown to have less negative impact on the semiconductor devices, induction motor stator winding and mechanical units of drive. © 2016 IEEE.


Andriyanov A.I.,Bryansk State Technical University
2016 Dynamics of Systems, Mechanisms and Machines, Dynamics 2016 | Year: 2016

The paper deals with operation of the algorithm of nonlinear dynamics multi-parameter control based on linearization of the Poincaré map in multistability do-mains applied to nonlinear dynamics control of the boost converter possessing a non-linear control characteristic. The results of mathematical simulation of the boost converter automatic control system have been presented in the form of dynamic modes maps and diagrams of the output voltage ripple swing. They confirm the efficiency of the control algorithm. It has been demonstrated that application of the considered algorithm allows to significantly decrease the output voltage oscillations magnitude in a wide range of system parameters and therefore increase the output voltage quality. The results have been obtained for the first time and may be used in the design of electrical systems based on a boost converter. © 2016 IEEE.


Andriyanov A.I.,Bryansk State Technical University
IOP Conference Series: Materials Science and Engineering | Year: 2017

The paper presents a comparative analysis of efficiency of methods of nonlinear dynamics control with feedback: a method of linearization of Poincaré map, a method of time-delay feedback, a method of target-oriented control. Efficiency of each method is evaluated on basis of the achieved domain of the desired dynamic mode. Dynamics modes maps and diagrams allowing evaluation of a particular method efficiency are given. It is shown that a target-oriented control has the greatest efficiency, and when it is applied in the selected range of system parameters, undesired dynamic modes do not exist. The method of Poincaré map linearization and the method of time-delay feedback control have approximately equal efficiency. A comparative analysis is performed for the first time, and the obtained results are of great importance for practice. © Published under licence by IOP Publishing Ltd.


Andriyanov A.I.,Bryansk State Technical University
Journal of Computer and Systems Sciences International | Year: 2016

The nonlinear dynamics of a closed automatic control system with sinusoidal pulse-width modulation is analyzed. As a result of the studies, maps of dynamic modes and bifurcation diagrams are constructed. New types of Border-collision bifurcations are discover. The concept of a design mode for systems of the considered class is introduced. The results of the work make it possible to extend the classification of Border-collision bifurcations. © 2016, Pleiades Publishing, Ltd.


Andriyanov A.I.,Bryansk State Technical University
2016 International Siberian Conference on Control and Communications, SIBCON 2016 - Proceedings | Year: 2016

The paper proposes a new version of control system for a buck converter based on target-oriented control with correction function parameters adaption, providing predefined nonlinear dynamics behavior of the converter. The proposed control system allows withdrawing parametric synthesis from the design process of the considered device class and this way helps to avoid a variety of collisions arising on the stage of design arrangement. The correction function parameters adaption technique based on Nelder-Mead method is presented. Mathematical modeling of the considered system has been implemented to prove the efficiency of the given control algorithm. The approach described in the paper can be applied to nonlinear dynamics control for a wide range of switching power converters. © 2016 IEEE.


Goncharov K.A.,Bryansk State Technical University
Proceedings of 2015 International Conference on Mechanical Engineering, Automation and Control Systems, MEACS 2015 | Year: 2015

A mathematical model of the distribution of tractive effort between drives of a belt conveyor with hydraulic couplings at their failure, taking into account the actual mechanical characteristics of joint operation of electric motors and hydraulic couplings is proposed. The example shows the advantage of the proposed model in the prediction of the working parameters of the conveyor on the failure of several drives. © 2015 IEEE.


Ozhereliev V.,Bryansk State Technical University
Proceedings of 2015 International Conference on Mechanical Engineering, Automation and Control Systems, MEACS 2015 | Year: 2015

This article presents the results of multi-year studies and experience in actuating devices construction, intended for mature raspberries take off with minimal damage for immature berries and laterals. © 2015 IEEE.


Syanov S.Y.,Bryansk State Technical University
Proceedings of 2015 International Conference on Mechanical Engineering, Automation and Control Systems, MEACS 2015 | Year: 2015

The article reveals theoretical dependencies of surface finish, waviness, microhardness and residual stress on spark eroding conditions. The main factors causing tool electrode wear and influencing the process efficiency are determined. On this basis theoretical dependencies of tool volume wear and process efficiency on process parameters are established. Thanks to these dependencies it is possible to carry out process control over parts surface layer quality characteristics, tool electrode wear and efficiency of spark eroding. © 2015 IEEE.


Filatov R.,Bryansk State Technical University
Proceedings of 2015 International Conference on Mechanical Engineering, Automation and Control Systems, MEACS 2015 | Year: 2015

This paper presents modern methods of technical diagnostics of forge machines as a whole and their main units. Analysis of the considered methods disadvantages is also carried out in the paper. © 2015 IEEE.


Medvedev D.M.,Bryansk State Technical University
Proceedings of 2015 International Conference on Mechanical Engineering, Automation and Control Systems, MEACS 2015 | Year: 2015

The results of developing the dependencies of wear intensity of machine parts surfaces from conditions of their final longitudinal turning and their final cylindrical grinding with radial supply based on the energy approach were presented. The models found give an opportunity to scientific improvement and creating of knowledge-intensive functionally-oriented techniques that allow increasing wear resistance of parts and their junctions in engineering industry workpieces. © 2015 IEEE.

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