Abstract

This paper presents the results of computer simulation of transient processes in an asynchronous electric drives while the implementation of the start reactor method. Extreme effects, which occur in the process of direct start, have a negative effect on the technical condition and significantly reduce the resource of asynchronous motors. The necessity of simulation of electromagnetic and electromechanical starting processes is demonstrated. The structural and functional diagram of the computer model, which was discovered in the Matlab system, was shown. The abilities of the model were described. Examples of dynamic characteristics (mechanical and electromechanical) high-voltage asynchronous electric drive in transient starting conditions were presented. These characteristics, obtained using all the relevant features of the drive are initial data for analysis and search regimes controlled start, minimizing the negative impact of transients. For example, reactor start-up of high-voltage asynchronous electric drive with the possibility of choosing the start mode, limiting the negative impact of the oscillatory component of the electromagnetic torque.

Keywords

Asynchronous motor, computer model, direct start, start mode, reactor start-up.