Discussion on Robust Control Applied to Active Magnetic Bearing Rotor System

This paper investigates performance of various controllers on the stabilization of active magnetic bearing system (AMBs). Firstly, since AMBs are inherently open-loop unstable, closed-loop system identification is adopted in order to obtain the model of the system under study. Next, based on the obtained model, Linear Quadratic Gaussian (LQG), PD-like Fuzzy Controller (PD-FLC), PID-like Fuzzy Controller (PID-FLC) andController are designed. These controllers are then coded in C and implemented in real time on both x and y channels at one side of the AMBs via a Digital Signal Processor (DSP). The performance of the designed controllers is compared while the system is stationary and subject to step disturbances and while the system is rotating at high speed. As minimizing energy consumption is one of the obvious desirable objectives to achieve, these different stabilizing controllers are also compared in terms of the resulting control energy. The ultimate aim of this paper is to develop an intuition on how to design high performance stabilizing controllers of open-loop unstable systems like AMBs.

show abstract

High performance H<inf>∞</inf> control of non-minimum phase Active Magnetic Bearing system

Noshadi

Shi

Lee

et al. 2014

IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society

View full text Add to dashboard Cite

Discussion on Robust Control Applied to Active Magnetic Bearing Rotor System

Cited by 6 publications

References 32 publications

Unbalance and Harmonic disturbance attenuation of a flexible shaft with active magnetic bearings

Unbalance and Harmonic disturbance attenuation of a flexible shaft with active magnetic bearings

Comprehensive experimental study on the stabilization of active magnetic bearing system

High performance H<inf>∞</inf> control of non-minimum phase Active Magnetic Bearing system

Contact Info

Product

Resources

About

Discussion on Robust Control Applied to Active Magnetic Bearing Rotor System

Cited by 6 publications

References 32 publications

Unbalance and Harmonic disturbance attenuation of a flexible shaft with active magnetic bearings

Unbalance and Harmonic disturbance attenuation of a flexible shaft with active magnetic bearings

Comprehensive experimental study on the stabilization of active magnetic bearing system

High performance H<inf>&#x221E;</inf> control of non-minimum phase Active Magnetic Bearing system

Contact Info

Product

Resources

About

High performance H<inf>∞</inf> control of non-minimum phase Active Magnetic Bearing system