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Документ Determination of railway rolling stock optimal movement modes(NTU "KhPI", 2017) Petrenko, O.; Liubarskiy, B.; Pliugin, V.Purpose. To develop a methodology for simulating of an electromotive railway rolling stock in terms of power-optimal modes on a track with a given profile and a set motion graph. Methodology. We have used combined genetic algorithm to determine optimum modes of an electromotive railway rolling stock motion: a global search is performed by a genetic algorithm with a one-point crossover and roulette selection. At the final stage of the optimization procedure we have used Nelder-Mead method for the refinement of the optimum. Results. We have obtained that traction motor on a tramcar, while driving on a fixed site, has an excessive power of the cooling system. Its using only in the considered area allows to modernize the cooling system in the way of its power reducing, which in turn provides an opportunity to increase the overall efficiency of the electromotive railway rolling stock. Originality. For the first time, we have obtained the train motion equation in the program oriented form. This allows to use it for determination of electromotive railway rolling stock optimal control laws according to the Hamilton-Jacobi-Bellman method. Practical value. We have made the computer program to determine optimum modes of an electromotive railway rolling stock motion. The experimental studies of program results for the track section have confirmed the adequacy of the model, which allows to solve the traffic modes optimization problem for the tram track sections and increase the overall efficiency of the electromotive railway rolling stock.Документ Imitation model of a high-speed induction motor with frequency control(NTU "KhPI", 2017) Pliugin, V.; Petrenko, O.; Grinina, V.; Grinin, O.; Yehorov, A.Purpose. To develop the imitation model of the frequency converter controlled high-speed induction motor with a squirrel-cage rotor in order to determine reasons causes electric motor vibrations and noises in starting modes. Methodology. We have applied the mathematical simulation of electromagnetic field in transient mode and imported obtained field model as an independent object in frequency converter circuit. We have correlated the simulated result with the experimental data obtained by means of the PID regulator factors. Results. We have made the simulation model of the high-speed induction motor with a squirrel-cage rotor speed control in AnsysRMxprt, Ansys Maxwell and Ansys Simplorer, approximated to their physical prototype. We have made models modifications allows to provide high-performance computing (HPC) in dedicated server and computer cluster to reduce the simulation time. We have obtained motor characteristics in starting and rated modes. This allows to make recommendations on determination of high-speed electric motor optimal deign, having minimum indexes of vibrations and noises. Originality. For the first time, we have carried out the integrated research of induction motor using simultaneously simulation models both in Ansys Maxwell (2D field model) and in Ansys Simplorer (transient circuit model) with the control low realization for the motor soft start. For the first time the correlation between stator and rotor slots, allows to obtain minimal vibrations and noises, was defined. Practical value. We have tested manufactured high-speed motor based on the performed calculation. The experimental studies have confirmed the adequacy of the model, which allows designing such motors for new high-speed construction, and upgrade the existing ones.Документ 3D magnetic filed distribution in a screw double-stator induction motor(Lviv Polytechnic National University, 2015) Zablodskiy, Nikolai; Pliugin, V.In this paper Ansys Maxwell calculation result of 3D magnetic field in double-stator screw induction motor with hollow outer ferromagnetic rotor is given.Документ Using of object-oriented analysis in electric machines mathematic modeling(Polish Academy of Sciences Branch in Lublin, 2015) Pliugin, V.; Milykh, V.; Polivianchuk, A.; Zablodskij, N.The paper discusses the application of the object-oriented analysis principles, such as a hierarchy, inheritance, polymorphism in the structural synthesis of mathematical models of rotating electrical machines. The results allow to dynamically synthesize arbitrary mathematical models of electric machines on the stage of its design and carry out an analysis of electromagnetic transients.Документ Analysis of the Electromagnetic Field of Electric Machines Based on Object-oriented Design Principles(The Electromagnetics Academy, 2015) Pliugin, V.; Shilkova, L.; Lettl, J.; Buhr, K.The authors propose to work out common principles of synthesis of electromagnetic field models for the main types of electrical machines. The main objective is to create field models of electric machines by inheritance of their characters from the original Maxwell's equations. An inverse problem also is solving - the synthesis of electric machines electromagnetic field equations using object-oriented design.