Stability analysis of mechanical coupled two-motor asynchronous electric drive

Morozov, A. V.; Dobroskok, Nikita A.; Lavrinovskiy, Victor S.; Mokhova, Olga

doi:10.1109/eiconrus.2017.7910714

Cited by 3 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[13][14][15][16] The stability and rapidity of asynchronous motor control system are mainly reflected in the tracking effect of speed feedback under different speed commands. [17][18][19][20] In the vector control method, the speed feedback will directly affect the subsequent speed of the motor, so the research on the tracking effect of speed feedback is of great significance. An important factor affecting the speed feedback tracking characteristics is the accuracy of encoder speed measurement.…”

Section: Introductionmentioning

confidence: 99%

Speed feedback observation algorithm based on parameter introduction and its application in asynchronous motor

Wang

Pan

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part I:

View full text Add to dashboard Cite

In this article, three-phase asynchronous motor and photoelectric encoder are taken as the research objects. In order to solve the problem of delay in the velocity feedback measurement result of asynchronous motor by photoelectric encoder, this article proposes a velocity feedback observation algorithm which introduces parameters according to different velocity instructions. The proposed method ensures that the speed feedback of asynchronous motor can keep good tracking effect under different speed instructions, reduces feedback delay, and the oscillation of speed tracking waveform is small. Stability analysis is also carried out in this article to ensure the reliability of the system. In the whole control system, the position signal output by the photoelectric encoder is the input of the algorithm, and the output of the algorithm is the speed feedback of the system. The proposed method establishes the speed control system model of three-phase asynchronous motor through MATLAB/Simulink for simulation, and the experiment is carried out based on the simulation. The simulation and experiment are compared with the traditional differential velocity measurement method of encoder. The results show that the velocity observation algorithm proposed is verified under different velocity instructions and varying loads, and the system has smaller steady-state error, better dynamic response, and good robustness.

show abstract