Adaptive back-stepping control of active magnetic bearings

Dong, Lili; You, Silu

doi:10.1109/icca.2013.6564856

Cited by 6 publications

(4 citation statements)

References 12 publications

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“…Several researchers investigate the backstepping method in AMBs and achieve remarkable achievements. A backstepping control is originally applied to a linearised model for an AMB system [24]. Nonetheless, several parameters are involved.…”

Section: Introductionmentioning

confidence: 99%

Backstepping control of three‐pole radial hybrid magnetic bearing

Zhu

2020

IET Electric Power Applications

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To improve dynamic performance and robustness of a three‐pole radial hybrid magnetic bearing (HMB), a backstepping controller is designed in this study. After introducing configuration of the three‐pole radial HMB, the mathematical model is established by using the equivalent magnetic circuit method, and then the state equations are derived. Based on the state equations, the backstepping controller is designed by conducting backstepping algorithm and Lyapunov theorem which is adopted to confirm the stability of the system. Aiming at the difficulty of parameter adjustment, the adjustment factor is introduced through theoretical analysis. And the suitable value range of regulation factor is given by simulation. To identify the validity of the presented controller, the backstepping controller and the proportional–integral–derivative (PID) controller are compared by simulation and experiment. Simulation and experimental results have verified that the dynamic performance and the robustness of the backstepping controller are superior to the PID controller.

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Section: Introductionmentioning

confidence: 99%

Backstepping control of three‐pole radial hybrid magnetic bearing

Zhu

2020

IET Electric Power Applications

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“…The feedback linearization based control scheme is reported in Wen and Fang (2012) for stabilizing the magnetic suspension flywheel system. The Backstepping control scheme has been investigated in Li and Wang (2013), Queiroz and Dawson (1996), Sivrioglu and Nonami (2003), Dong and You (2013), and Sivroglu (2007). In Li and Wang (2013) a Backstepping nonlinear position controller has been applied to track reference trajectory and in Sivroglu (2007) an adaptive output Backstepping controller to compute nonlinear control currents of the AMB system when system parameters were unknown are also proposed.…”

Section: Introductionmentioning

confidence: 99%

Design of backstepping control with CNN-based compensator for active magnetic bearing system subjected to input voltage saturation

Pati

Negi

2018

WJE

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Purpose The stability and input voltage saturation is a common problem associated with an active magnetic bearing (AMB) system. The purpose of this paper is to design a control scheme that stabilizes the single degree of freedom AMB system and also tackle the problem of input voltage saturation in the AMB system. Design/methodology/approach The proposed control technique is a combination of two separate control schemes. First, the Backstepping control scheme is designed to stabilize and control the AMB system and then Chebyshev neural network (CNN)-based compensator is designed to tackle the input voltage saturation when the system control action is saturated. Findings The mathematical and simulation results are presented to validate the effectiveness of proposed methodology for single-degree freedom AMB system. Originality/value This paper introduces a CNN-based compensator with Backstepping control strategy to stabilize and tackle the problem of input voltage saturation in the 1-DOF AMB systems.

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“…The general control Lyapunov function (CLF) is constructed to include the rotor 0 s displacement, the errors between real system states and their stabilizing functions, and the difference between estimated and real disturbance. In the design of ABC, the AMB system has to be expressed as a "strict feedback form" [22,23]. Eq.…”

Section: Model Transformationmentioning

confidence: 99%

“…While the regular ABC is based on the feedback information of three states (displacement, velocity, and current) from AMB, the AOBC is constructed on only one state (displacement). In [23], some preliminary results are reported about the application of a regular ABC to the AMB. The AOBC is an alternative solution to the control problem of the AMBs where current and velocity are not measurable.…”

mentioning

confidence: 99%