Control of an electromagnetic suspension system using TMS 32020 digital signal processor .

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Some design results related to the control of an electromagnetic suspension system has been presented .the limitations of the analogue controller have been overcome by using a low cost , high speed , and wide data memory digital signal processor .the experimental project described in this paper demonstrates the application potential of the TMS 32020, and its ability to emulate the real-time performance of analogue controllers .the limitations of the fixed values state feedback controller vis-a-vis unwanted low frequency disturbances have been overcome by the use of tuned feedback gains .the algorithm has been successfully implemented , however , if high magnitude disturbances are applied to the system , a small error is generated .this might be caused by the sample and hold , signal conversion , quantization , and the fixed point representation .the performances of the electromagnetic suspension system can be improved by implementing delta model pole placement self-tuning controller .the errors can be reduced by introducing floating point representation , and hardware routines .