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Study of Sliding Mode Controls of Acceleration of a Shaker
Chen Zengshi *
Lufkin Industries, Inc., Missouri City, Texas, USA, 077489
*Correspondence author
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Funding: none
Opened online:15 November 2011
Accepted by: none
Citation: Chen Zengshi.Study of Sliding Mode Controls of Acceleration of a Shaker[OL]. [15 November 2011] http://en.paper.edu.cn/en_releasepaper/content/4448893
 
 
This paper investigates sliding mode controls of the acceleration for a voice coil driven shaker. The electromechanical system is modeled. The double loop and two single loop controls are proposed, simulated and compared. Stability and robustness of the closed-loop system are analyzed, providing a guide for controller parameter selection. The simulation results show the effectiveness of the controllers. Acceleration and root mean square (RMS) current are controlled with the desired accuracy. The inverter switching loss is reduced. The different control strategies have different maximum switching frequencies, finite-convergence time, and tracking accuracies. The transient responses for a step input are predictable for all the controllers.
Keywords:Sliding Mode Control (SMC); Proportional-Integral (PI); Transient; Voice Coil; Shaker
 
 
 

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