| Summary: | 碩士 === 國立成功大學 === 製造工程研究所碩博士班 === 92 === The demand for precision and speed of machine tools is getting higher and higher. Therefore, it is necessary to have a servomechanism with an outstanding positioning and tracking function. This research uses a controller architecture to study how is the performance of positioning and tracking function. This research uses a controller architecture to study how is the performance of positioning and tracking error of the machine tool.
In the controller architecture, a feedback controller and a feedforward controller are integrated and used; where the feedback controller adopts a disturbance observer to reject the nonlinear phenomenon and external disturbance of the system and a PD controller to enhance the transient response and to reduce the overshoot of the system and assure the stability of the system; and the feedforward controller applies a zero phase error tracking controller to improve the phase lag phenomenon of the system and uses a feedforward friction compensator to compensate the error caused by the friction.
The last, this research bases on a mold cutting machine tool, Model TMV-760/1100HSC provided by a certain company as a plant to study the control architecture. In the aforementioned control architecture explored by this research, each controller tends to enhance the system performance and uses software to simulate and verify the foregoing control architecture.
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