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Discrete control systems

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  • Electrical and electronic engineering [2]
  • Power systems and applications [2]
  • Power apparatus and electric machines [2]
  • Computer and control engineering [2]
  • Systems and control theory [2]
  • Control theory [2]
  • Control system analysis and synthesis methods [2]
  • Stability in control theory [2]
  • Specific control systems [2]
  • Discrete control systems [2]
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  • 1996 [2]

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H2 robust digital vector control for the induction machine
Author(s): C.P. Bottura, S.A. Augusto Filho, J.L. Silvino
Source: IEE Proceedings - Control Theory and Applications, Volume 143, Issue 3, 1996 , p. 237 - 243
Type: Article
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Using a discrete time-variant state-space model for the induction machine, the authors consider the plant variations as being uncertainties represented by polytopes. In addition, an alternative scheme of vector control is proposed for digital control of the induction machine. This scheme involves treatment of the machine equations in state space and the acquisition of a robust state-feedback gain by an H2 convex optimisation method.

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Discrete sliding control technique of DC motor drive
Author(s): M.F. Benkhoris, A. Gayed
Source: 6th International Conference on Power Electronics and Variable Speed Drives, 1996, p. 81 - 86
Type: ConferencePaper
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Deals with discrete speed regulation of a DC motor using a sliding control technique. Two schemes for control design are given. The main advantages and inconveniences are pointed out. This study takes into consideration the system physical constraints current and voltage limitation, discretisation, time delay for control computation and the different sampling periods. A solution to reduce chattering phenomena is discussed in each case. Finally the experimental results are presented and system robustness with respect to parameters uncertainties and to both speed tracking and regulation are outlined.

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