Robust Stability Bound on Linear Time-Varying Uncertainties for Linear Digital Control Systems under Finite Wordlength Effects
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概要
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An approach is introduced to analyze the robust stability of linear digital control systems under both finite wordlength effects and linear time-varying parameter perturbations. Digital controllers are realized with floating-point arithmetic. The robust stability criterion (sufficient condition) presented in this paper can be used to obtain the stability bound on a linear time-varying uncertainty matrix due to the combination of parameter perturbations, feedback gain quantization error and computational roundoff errors. This bound provides a quantitative measure for control engineers to design an actual closed-loop digital control system with robustness. An example is given to illustrate the application of the proposed robust stability criterion.
- 一般社団法人日本機械学会の論文
- 1996-12-15
著者
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Chen Shinn-horng
Department Of Mechanical Engineering National Kaohsiung Institute Of Technology
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Chou Jyh-horng
Department Of Mechanical And Automation Engineering National Kaohsiung First University Of Science A
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Horng Ing-Rong
Institute of Mechanical Engineering, National Sun Yat-Sen University
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Horng Ing-rong
Institute Of Mechanical Engineering National Sun Yat-sen University
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