THE CONVERTERS ROLE IN ADAPTIVE CONTROL SYSTEM TO CONVERSION BY CUTTING THROUGH CIRCULAR SAW

The way that "MU" gets the values “ap”, "f" and "v" separates the control systems of cutting process "RAS" into two categories: Control according to MU programme: values “ap”, "f" and "v" is determined before the process, except MU, it is registered in MU programme, then is reproduced with possible fidelity, regardless of the variations that occur in the cutting process; MU’s adaptive control: aims to set the appropriate values of “ap”, "f" and "v" or only a part of them, in real-time, permanently, while processing and based on information initially included into the system and some information from the cutting process. Currently, due to its disadvantages, the control according to MU programme is technically outdated. As a matter of fact all MUs are provided with adaptive control systems ACSs because of their obvious advantages, namely Optimization criterion that underlies the adaptive control strategy is the minimum cost of the process, provided that the requirements of quality, dimensional and shape accuracy and surface roughness are fulfilled Adaptive control process is based on an algorithm inferred from scientific methods for determining the proposed optimum Self-adjustment of one or more parameters of cutting system so that processing maintains the required economic optimum Protects the tool and machine tool from overpressure Eliminate the disturbance influence