Author(s)

Avadh Pati^1*, Vijay Kumar Verma², Richa Negi¹, Shyam Krishna Nagar³

¹Department of Electrical Engineering, Motilal Nehru National Institute of Technology, Allahabad, India.
²School of Electronics Engineering, Kalinga Institute of Industrial Technology, Bhubaneswar, India.
³Department of Electrical Engineering, Indian Institute of Technology BHU, Varanasi, India.

This paper addresses a digital controller for a real time magnetic levitation system using series expansion of pulse transfer function, which achieves desired closed loop response. The proposed digital controller designed, based on series expansion of pulse transfer function by solving a linear equation using the method of least squares, which improves the transient performance and step tracking capability of the compensated system. The designed algorithm used for the control input is not iterative, so the calculation is very fast. The proposed control scheme has successfully applied on maglev system and also validated through the simulation and hardware experimental results.

Maglev System, Least Squares, Series Expansion, Pulse Transfer Function, Digital Controller

Pati, A. , Verma, V. , Negi, R. and Nagar, S. (2016) Real Time Implementation of Series Expansion Based Digital Controller for Magnetic Levitation System. Intelligent Control and Automation, 7, 110-128. doi: 10.4236/ica.2016.74011.