The impact of counter-electromotive force of the motor on vibration damping processes in electromechanical systems

Abstract

Comprehensive approach to the design of modern electromechanical systems and complexes is required to increase the efficiency and the quality of engineering units with high-speed electric drives.   The  complexity of studies of modern electric drives increases while changing the parameters of control objects, deflexion and clearances of mechanical transmissions, friction forces and other factors that complicate the control algorithms. To improve the quality of the control of modern electromechanical systems it is often required to perform more precise calculation of the impact of counter-electromotive forces of motors on the operation of electric drives. We analyzed the impact of the motor counter-electromotive forces on electric drives processes with subordinate coordinate control and summarized the results of studies concerning the impact of the  motor counterelectromotive forces on the operation of electric drives with pure rigid mechanical transmissions. We also specified  conditions  and  factors  deteriorating  the  quality  of  electric  drive  control  due  to  the  impact  of  the  motor counter-electromotive forces while changing the control and disturbance effects. We studied the impact of the motor counter-electromotive forces on the coordinate vibrations of the electromechanical  systems  with  tough  mechanical  transmissions.  The  conditions  and  parameters  of  current  and speed controllers of the subordinate control systems were specified when it is possible to neglect the impact of the motor counter-electromotive forces on the damping ability of electric drives in electromechanical systems with elastic coupling