Research of Transition Processes of Single-Phase Collector Motor With AC Voltage Controller Model Created on Project Design Data

Abstract

A model of an single-phase collector motor with alternating current supply and voltage regulation using one thyristor (half wave phase control) or two thyristors (full wave phase control) in MATLAB Simulink has been developed and further investigated on the basis of results of project design calculation, while all necessary motor parameters for mathematical models have been obtained. This model is based on existing models of universal motor and thyristor in the MATLAB Simscape library using real data. The obtained model has enabled to investigate the mechanical characteristics of the motor with alternating current supply and voltage regulation using one or two thyristors for different thyristor firing angles. The influence of the armature circuit inductance on the shape of the regulated supply voltage in the motor start and operation mode using the AC voltage controller is investigated. The importance of controlling the armature circuit inductance in the process of design calculation and the ways of reducing inductance are proved. It is shown that complex design reduction of the armature inductance and the use of RC-snubber allows to provide the lowest ripple of the motor supply voltage.