Authors: I.A. Sokolov

Title of the article: Characteristics power switches simulation soft starters induction motors

Year: 2016, Issue: 4, Pages: 89-94

Branch of knowledge: Electrical engineering

Index UDK: 621. 314.522, 621.316.717

DOI: -

Abstract: The urgency of the discussed issue: Widespread soft starters, shock-free starters - it is the result of the effective value for money. However, the problem of real quantitative assessment of the advantages and disadvantages of using soft starter for induction motor is actual. Unfortunately, it is difficult to detect changes in the visualization of dynamic mechanical characteristics of the start with or without a soft starter. But there are proven tools of simulation, allowing to receive full information about the dynamic state of power supply circuit, comprising a soft starter and induction motor. Modeling of power switches in the composition of soft starters, is particularly interesting. In this way, the issue of a detailed review of elements of a dynamic simulation model of the soft starter, for the analysis and prediction of the behavior of the electric drive system based on the induction motor is important. The main aim of the study: Analysis of the options for using the power semiconductor switches in dynamic simulation models of soft starters, switching asynchronous motor to the power supply system. The methods used in the study: Methods based on the use of mathematical models of induction motor, comprising: 3-phase induction motor, with ventilator load on the rotor shaft, the length of the cable network and the soft starter. Simulation models are implemented tools MatLab (SimuLink). The results: Demonstrate the main options for the use of modes of power semiconductors and given the dynamic characteristics of the process of starting an asynchronous motor via the soft starter.

Key words: 3-phase asynchronous motor start mode the soft starter mutual influence through the power supply system

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