Bryansk State Technical University

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Bryansk, Russia
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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.


Pugachev A.,Bryansk State Technical University
2016 2nd International Conference on Industrial Engineering, Applications and Manufacturing, ICIEAM 2016 - Proceedings | Year: 2017

The scalar control system of an induction motor electric drive shown satisfies requirements to a number of industrial and transport applications. The features of different scalar control systems are considered. The criteria for efficiency evaluation and comparative analysis of electric drives, including the traction ones, are proposed. The influence of windings temperature on efficiency and some parameters of scalar control with modes of constant slip and stator current minimum are evaluated. The description of the model and results of Matlab simulation are presented for the 11 kW induction motor electric drive. The recommendations of practical implementation of results are given. © 2016 IEEE.


Morozova A.,Bryansk State Technical University
2016 2nd International Conference on Industrial Engineering, Applications and Manufacturing, ICIEAM 2016 - Proceedings | Year: 2017

The solution of a fundamental problem at quality metering and comparison of objects with an arbitrary origin is offered. It is based on the use of system analysis principles, statistical and expert-analytical methods and methods of mathematical modeling. A model developed allows describing an object through quality metering under conditions when its investigation or estimation is carried out by one subject on the basis of analytical results obtained by other subject. The introduced concepts of object parameter-graph (a flat level model for description of clusters of its characteristics)-a generalized and shown index of object quality allows using the developed model at investigation of object quality of both material and social nature, and also at development of the procedure of their comparison and selection in accordance with subject's preferences having no direct participation at investigation of the object under analysis. © 2016 IEEE.


Pugachev A.,Bryansk State Technical University
2016 2nd International Conference on Industrial Engineering, Applications and Manufacturing, ICIEAM 2016 - Proceedings | Year: 2017

The survey of determination of induction motor stator and rotor winding temperature with non-invasive techniques is shown. The technique of determination of the stator and rotor winding resistance and temperature with combined intermittent DC voltage and high frequency and low-magnitude ac voltage injections is proposed. The assessment of its accuracy in a wide range of load torque and stator current frequency is evaluated. The technique and results of simulation in Matlab is presented. The influence of additional stator voltages injections on stator current and produced torque of an induction motor is shown. The possibility of practical implementation in modern electric drives is discussed. © 2016 IEEE.


Pol'skii E.A.,Bryansk State Technical University
Russian Engineering Research | Year: 2017

Automated design of the machining trajectories in multifunctional machine tools (compact production systems) may be used to ensure the required surface precision of machine parts. The approach proposed is based on automated generative synthesis of individual processes. © 2017, Allerton Press, Inc.


Atamanova O.V.,Bryansk State Technical University
Studies on Russian Economic Development | Year: 2013

Factors characterizing the self-sufficiency of a region with dairy products are considered in the paper, and, based on the offered factors, estimates of the product sufficiency across Bryansk oblast are given. A forecast estimate is provided, including the regional features of Bryansk oblast, milk production, and main types of dairy products. © 2013 Pleiades 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.

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