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Problem and its solution for actuator saturation of integrating process with dead time

โœ Scribed by Maorui Zhang; Canghua Jiang

Publisher
Elsevier Science
Year
2008
Tongue
English
Weight
601 KB
Volume
47
Category
Article
ISSN
0019-0578

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โœฆ Synopsis

The modified Smith predictor (MSP) for integrating process with dead time (IPDT) has at least one pole at the origin of s-plane. The integral effect leads to large overshoot and slow settling time when the control signal exceeds the saturation limits of the system actuator. The windup problem in MSP is presented and studied. Based on the two degrees of freedom (2DOF) control schemes presented by Normey-Rico and Camacho, an anti-windup controller (AWC) is proposed. By simulation, significant performance improvement demonstrates the effectiveness of the proposed scheme.

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โœ M.L. Martiarena; C.R. Garibotti ๐Ÿ“‚ Article ๐Ÿ“… 1990 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 406 KB

We obtain the solution of the nonlinear Boltzmann equation for a spatially homogeneous mixture of L gases, consisting of Maxwell particles. We include removal and self-generation effects in presence of a time-dependent external force. The solution is given as a generalized Laguerre expansion, within