Torsional vibration issues in elastic drive systems are a well-known topic also in the industrial field. The torque pulsations produced by the drive are the main causes of these torsional resonance excitations. However, it will be analysed in this paper how some side-effects in the control strategy, like the latencies, are critical as the torque ripple. Indeed, the suppression of this vibrations phenomenon cannot be achieved correctly without analysing and quantifying the time-delays that affect the system. This paper aims to provide both a comprehensive analysis on such latencies and introduces a method to proof the relationship between the damping capability of the process and the time-delays. It will be defined a process damping coefficient in order to explain the relations between the electrical damping, related to the control architecture, the latencies and the mechanical damping.

Latency effect in a variable speed control on torsional response of elastic drive systems

ROSSI, MATTIA;MAURI, MARCO;CARMELI, MARIA STEFANIA;CASTELLI DEZZA, FRANCESCO
2016-01-01

Abstract

Torsional vibration issues in elastic drive systems are a well-known topic also in the industrial field. The torque pulsations produced by the drive are the main causes of these torsional resonance excitations. However, it will be analysed in this paper how some side-effects in the control strategy, like the latencies, are critical as the torque ripple. Indeed, the suppression of this vibrations phenomenon cannot be achieved correctly without analysing and quantifying the time-delays that affect the system. This paper aims to provide both a comprehensive analysis on such latencies and introduces a method to proof the relationship between the damping capability of the process and the time-delays. It will be defined a process damping coefficient in order to explain the relations between the electrical damping, related to the control architecture, the latencies and the mechanical damping.
Proceedings - 2016 22nd International Conference on Electrical Machines, ICEM 2016
9781509025381
9781509025381
latency; process damping; pulsating torque; stability analisys; TNFs excitation; VSD applications; Electrical and Electronic Engineering; Mechanical Engineering
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11311/1010120
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