Method for influencing the control properties of a superimposed rotational speed - or torque gleichstrommmotors generally circle of a converter with current feed in go - circuit in the range of small torques and with rotary torque reversal

摘要

The drive regulation method involves using superimposed regulation circuits (2, 3) respectively controlling magnetic flux or motor EMF and armature current. The magnetic flux of the DC motor (12), or each DC motor employed by the drive, is reduced for low armature currents, with the circuit amplification remaining constant. Pref. the magnetic flux is reduced depending on the armature current up to a variable threshold, with the circuit amplification adjusted in inverse proportion to the flux. USE/ADVANTAGE - For thyristor-regulated DC drive for machine component. Provides improved regulation during direction reversal of drive.