Magnetic Bearing Controller Tuning and Client/Server Technology

Remote auto-tuning is studied and implemented successfully. Remote tuning of PD controller parameters is achieved using Internet technology, specifically client/server technology. Proportional derivative (PD) control is widely used in active magnetic bearing (AMB) systems, however the tuning of its parameters is quite time consuming. In this paper, a solution to the problem is investigated in which a auto-tuning algorithm is implemented by a DSP. A simplified model is first developed and then used in deriving the auto-tuning algorithm based on Lyapunov stability theory. The developed algorithm is applied to the control of a magnetic bearing system. Both simulations and experimental investigations show the effectiveness of the proposed approach.