This paper describes the design of an adaptive power controller in cylindrical traverse grinding (CTG), where the power consumed by the grinding process is controlled by regulation of the traverse velocity. An adaptive proportional plus integral (PI) controller was tuned to give a small overshoot and limited oscillations in its response to the engaging of the wheel with the workpiece. An inner velocity loop was also designed and implemented inside the power close loop to guarantee a stable power response. The controller was designed to adapt to the changes in the relationship between the traverse feed rate and the grinding power. The controller was implemented and tested on an open architecture cylindrical grinding machine. The results show that the adaptively controlled system provides a better response than the non-adaptive control system over a wider range of cutting conditions.
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