Title :
A practical modeling approach of disturbances for electromechanical servo systems
Author :
Huo Xin ; Tong Xingang ; Liu Renzhan ; Zhang Xi ; Chen Songlin
Author_Institution :
Control & Simulation Center, Harbin Inst. of Technol., Harbin, China
Abstract :
Considering a class of electromechanical servo systems with high precision and high dynamic demands, the main composition of the disturbance torque is analyzed, and a new practical modeling approach is proposed in this paper. By utilizing the test data, the friction torque is fitted by a piecewise linear function according to the analysis of friction mechanism, and the mathematical expression of motor ripple torque is formulated by adopting the method of harmonic analysis. The effectiveness of disturbance model is verified through the comparison of simulation and experiment.
Keywords :
harmonic analysis; piecewise linear techniques; servomotors; disturbance modeling approach; disturbance torque composition; electromechanical servo systems; friction mechanism analysis; friction torque; harmonic analysis method; mathematical expression; motor ripple torque; piecewise linear function; test data; Analytical models; Friction; Harmonic analysis; Mathematical model; Servomotors; Synchronous motors; Torque; Disturbance Torque; Harmonic Analysis; Piecewise Linear Function; Simulink;
Conference_Titel :
Control Conference (CCC), 2014 33rd Chinese
Conference_Location :
Nanjing
DOI :
10.1109/ChiCC.2014.6896091
