Use of Creeping Speed Mode in Discrete Control and Measuring Equipment with Digital-Program Control

Abstract

The creeping speed mode is studied with calculation of the resultant vector of the flux linkage [psi]0 of the double-fed machine. It is shown that use of the double-fed machine as the actuating motor in the creeping speed mode increases the working off accuracy of the motion law. A mathematical model of the double-fed machine to study various modes of the CNC machine including the creeping speed mode is developed. The method to estimate the load parameters of the double-fed machine is presented. Practical implication of the study is confirmed by the results obtained in the evaluation of the influence of load parameters on the dynamic indicators of actuating electromotor.