Position-servo drives with finite control

• Published in: Russian electrical engineering 2015-06, Vol.86 (6), p.344-349
• Main Authors: Kazantsev, V. P., Dadenkov, D. A.
• Format: Article
• Language: English
• Subjects: Engineering; Machines; Manufacturing; Processes
• ISSN: 1068-3712; 1934-8010
• DOI: 10.3103/S106837121506005X

Theoretical issues in the construction of microprocessor electric drives with nonlinear reference dynamic models optimal by the criterion of end time of transition processes used as the previous filters are considered. The proposed approach is based on the theorem of n intervals of discrete control, which, when applied to digital position-servo electric drives, enables one to meet demands for quality for speed and acceleration that are unachievable by other systems of electric drives. The division of the control system structure into two subsystems solving one task of finite control with various functions is a novel characteristic of this system. The first subsystem, an electric drive, solves the task of finite control invariable to the control driving actions in the traditional approach of linear discrete-continuous systems. The second subsystem, an adaptive reference model, forms a nonlinear vector of phase variables of electric drive that is optimal in terms of the criteria of performance and precision. In addition, these phase variables are limited at tolerable levels. The reference model is also based on the principles of finite control. A generic functional structure of an electric drive with an adaptive nonlinear reference model and its simulation in the Matlab/Simulink environment, as well as simulation results confirming the effectiveness of the proposed approach, were represented.