Title :
PID vs. space state controller in a DSP implementation: which is better to drive a machine-tool axis?
Author_Institution :
Lab. d´´Inf. Tech., Ecole Polytech. Federale de Lausanne, Switzerland
fDate :
28 Oct-1 Nov 1991
Abstract :
The author describes the implementation and practical comparison of two kinds of controller algorithms: proportional integral derivative (PID) and space state. These algorithms were implemented in a digital signal processor (DSP), TMS320C25, for driving a machine-tool axis. For this reason, TMS boards on a VME bus and an environment were developed which consists of different kinds of inputs and a user-friendly display of the response. Many trajectories and paths were also available to test these controllers. The innovative aspect of this work was an experimental comparison between these controllers in addition to theoretical studies. The application of a specific controller depends on the type of machine tool used. Applications on milling, turning, and drilling machines are discussed
Keywords :
controllers; digital signal processing chips; machine tools; state-space methods; three-term control; PID; TMS320C25; controller; digital signal processor; drilling; machine-tool axis; milling; space state controller; turning; Digital signal processing; Digital signal processors; Displays; Machine tools; PD control; Pi control; Proportional control; Signal processing algorithms; Testing; Three-term control;
Conference_Titel :
Industrial Electronics, Control and Instrumentation, 1991. Proceedings. IECON '91., 1991 International Conference on
Conference_Location :
Kobe
Print_ISBN :
0-87942-688-8
DOI :
10.1109/IECON.1991.239274