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Reference Model Feedback Control and Stability Evaluation for Control System with Hard Non-linearities  

Jung, Yu-Chul (숭실대학교 대학원)
Lee, Gun-Bok (숭실대 기계공학부)
Publication Information
Transactions of the Korean Society of Machine Tool Engineers / v.15, no.5, 2006 , pp. 72-78 More about this Journal
Abstract
The paper proposes reference model error feedback control scheme for motion control system with hard non-linear components as like saturation and dead-zone in plant input part. Additionally, the plant has the system uncertainty effected by plant model parameter deviation and disturbance. The control algorithm uses the reference model to apply additional feedback loop with the error between reference model output and actual output effected by disturbance and non-linear components. And the stability evaluation based on Popov stability and controller design method are formulated to be performed. The effectiveness of the proposed scheme is examined by simulations. The results are proven by reasonable performances following reference model responses with good disturbance rejection performance without over-tuning of controller.
Keywords
Reference Model Feedback Control; Popov Stability; Controller Tuning; Hard Non-linearity; Input Saturation; Input Dead-zone;
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