Method for increasing the control robustness of the permanent magnet machine tool feed-drive

The article presents the results from the development of digital servodrive with permanent magnet synchronous motor within the CNC machine tool feed-drive. It was prepared during the work for the Ministry of Science and Higher Education grant number N N502 336936, (acronym for this project is M.A.R.I.N.E. multivariable hybrid ModulAR motIon coNtrollEr), while its main purpose is the development of new robust position/velocity model-based control system, as well as to introduce the measurement of the actual state into the switching algorithm between the locally synthesized controllers. Such switching increases the overall robustness of the machine tool feed-drive module. Presented here results takes into account the MIMO character of the process to be controlled.