The problem posed in this article is to make the electromechanical characteristics of the three-phase induction motor behave similarly to those of a separately excited DC motor, thereby enabling its use in applications where DC motors have traditionally demonstrated superior performance, such as electric railway traction. For it , A. We transformed the three-axis system “ abc ” into a two-axis system “ dq ” in quadrature using the orthogonal transformation. We have also made the rotor winding of the motor stationary although the rotor is in motion by using the rotation transformation (commutation transformation). The rotor winding has thus become pseudo stationary (falsely stationary) with respect to the rotor. This rotor winding becomes stationary but their axes rotate with the rotor, it is like in the DC motor. The two transformations (orthogonal and commutative) led us to the change of variables. B. We created the decoupling between flux and torque, ie we obtained a mathematical model of the three-phase asynchronous motor such that a direct current “ ” regulates the flux and an orthogonal current “ ” defines the torque as in the DC motor. This is made possible thanks to Park's transformation. C. We managed to independently control the term of the flux and that of the current to impose an electromagnetic torque by using the oriented flux command which consists in orienting the reference " dq " so as to cancel the component in flux quadrature A. ( or ). Oriented flux control is done by suitably choosing the angle " " of rotation of Park so that the flux " " or " " is entirely carried on the direct axis " d ". Flux-oriented control is made possible thanks to advances in micro-electronics. The goal to be achieved with flux-oriented control is therefore to obtain an "inverter-asynchronous motor" system which, by its characteristics, resembles that of the DC motor, but with the advantage of not using the commutator.
Behavioral equivalence, rotor field-oriented Control, asynchronous motor, current motor DC with separate excitation, modeling, simulation, experimental validation.
International Journal of Trend in Scientific Research and Development - IJTSRD having
online ISSN 2456-6470. IJTSRD is a leading Open Access, Peer-Reviewed International
Journal which provides rapid publication of your research articles and aims to promote
the theory and practice along with knowledge sharing between researchers, developers,
engineers, students, and practitioners working in and around the world in many areas
like Sciences, Technology, Innovation, Engineering, Agriculture, Management and
many more and it is recommended by all Universities, review articles and short communications
in all subjects. IJTSRD running an International Journal who are proving quality
publication of peer reviewed and refereed international journals from diverse fields
that emphasizes new research, development and their applications. IJTSRD provides
an online access to exchange your research work, technical notes & surveying results
among professionals throughout the world in e-journals. IJTSRD is a fastest growing
and dynamic professional organization. The aim of this organization is to provide
access not only to world class research resources, but through its professionals
aim to bring in a significant transformation in the real of open access journals
and online publishing.