The development of methods of angular acceleration indirect measurement and control error for angular speed of synchronously-inphase electric drive

Abstract

The authors have developed the methods of indirect measurement of angular speed error and angular acceleration of synchronously-inphase electric drive based on the analysis of cross sequence order of base frequency and closed loop pulses under saturated conditions of logic comparison device. Two methods are proposed to determine the angular speed error. The first one uses the calculation of a number of repetitive at the time pulse coincidences in base frequency and pulses in closed loop channel between two neighboring time moments corresponding to arrival of two pulses of one of the frequencies compared between two neighboring pulses of another frequency. The second method is based on calculation of a number of frequency pulses in reference high-frequency oscillator in the same time interval. At indirect measurement of angular acceleration the authors used the calculation of a number of frequency pulses in reference high-frequency oscillator at two neighboring time intervals of measuring angular speed error.

Keywords

• synchronously-inphase electric drive
• logical comparator
• indirect measurement
• angular speed
• angular acceleration
• phasing