Authors: E.K. Eshchin

Title of the article: Simulation of asymmetric three-phase asynchronous motor in matlab simulink

Year: 2015, Issue: 5, Pages: 81-90

Branch of knowledge: Electrical engineering

Index UDK: 621. 314.522, 621.316.717

DOI: -

Abstract: The urgency of the discussed issue: Ideology of formation of artificial mechanical characteristics of induction motors (IM) squirrel cage by varying the supply voltage is well known. To manage in this way start mode IM widespread physical devices called Soft Starter as well as non-impact device start (FSM), which allow you to change the value of the supply voltage of the motor. These devices are usually realized introduction in the chain of the stator-coil of a counter parallel-connected thyristors. By controlling the opening time of the state of the thyristors, changing the operating voltage applied to IM. Closed state of thyristor means breaking phase supply voltage and the occurrence of asymmetric in the system. Modeling this mode is necessary for qualitative and quantitative forecast of formed mechanical characteristics of IM. The main aim of the study: Development software package MatLab SimuLink system and the rapid development of the program model of electromechanical system Delphi 3-phase induction motor and research on this basis, the characteristics of the motor in start mode using the Soft Starter. The methods used in the study: Based on the use of a mathematical model of electromechanical system 3-phase IM, and the implementation of its software MatLab (SimuLink) and Delphi. The mathematical model takes into account the studies of asymmetric modes AD. The results: The obtained SimuLink - model, which takes into account most of the factors determining the state of the electromechanical system of the object. The results of computer experiments.

Key words: 3-phase asynchronous motor start mode the soft starter

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