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Lateral Displacement Control for Agricultural Tractor Based on Cascade Control Structure
International Journal of Control, Automation and Systems, 2020Path tracking control for the autonomous tractor has been receiving increased attention with the rapid development of modern agriculture. Lateral displacement control is essential for the path tracking effect. The objective of this research is to develop a lateral displacement control system to control the lateral position of tractor.
Shourui Wang +3 more
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Design of Cascade-Smith Hybrid Control Structure for Pressure Control
Key Engineering Materials, 2009A new hybrid-control structure for the compensation of the volume-delay negative effect in the mixed-gas pressure control is designed. The volume-delay mechanism is discussed. A Smith predictor is used in the primary loop of a cascade control system where the secondary loop has a negligible delay while the primary loop has a significant and variant ...
Yu Dong Xie, Yan Jun Liu, Yong Wang
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ISA Transactions, 2021
This article presents a unified approach of controller design in cascade control structure (CCS) for unstable, integrating and stable processes with dead-time to achieve enhanced load disturbance rejection. The design of inner and outer loop controllers in CCS is based, partially on the direct synthesis approach and partially on the pole placement ...
Mohammad Atif Siddiqui +3 more
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This article presents a unified approach of controller design in cascade control structure (CCS) for unstable, integrating and stable processes with dead-time to achieve enhanced load disturbance rejection. The design of inner and outer loop controllers in CCS is based, partially on the direct synthesis approach and partially on the pole placement ...
Mohammad Atif Siddiqui +3 more
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A cascaded control structure for air-path control of diesel engines
Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 2014In order to comply with increasingly stringent diesel-engine emission legislation, fast and precise control of the turbochargers and exhaust-gas recirculation are necessary. The difficulties lie in certain disadvantageous plant properties such as cross-couplings and non-linearities, the disturbance of the air path by fast operating-point changes and ...
Zentner, Stephan +4 more
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Journal of the American Chemical Society, 2021
Radical cascade cyclization reactions are highly attractive synthetic tools for the construction of polycyclic molecules in organic synthesis. While it has been successfully implemented in diastereoselective synthesis of natural products and other complex compounds, radical cascade cyclization faces a major challenge of controlling enantioselectivity ...
Congzhe Zhang +4 more
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Radical cascade cyclization reactions are highly attractive synthetic tools for the construction of polycyclic molecules in organic synthesis. While it has been successfully implemented in diastereoselective synthesis of natural products and other complex compounds, radical cascade cyclization faces a major challenge of controlling enantioselectivity ...
Congzhe Zhang +4 more
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Normalized cascade structures and state feedback control logic synthesis
42nd IEEE International Conference on Decision and Control (IEEE Cat. No.03CH37475), 2004This paper proposed a new state feedback controller synthesis method for solving forbidden states avoidance problems. The method can be used when all influentially uncontrollable subnets have normalized cascade structures, which differ from marked graph, state machine as well as forward and backward conflict-free structure. Two advantages of the method
Lida Dong +3 more
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Design and implementation of cascade control structure for superheated steam temperature control
2016 17th International Carpathian Control Conference (ICCC), 2016This paper deals with design and implementation of control system for superheated steam temperature control of high pressure part in the small biomass power plant. It describes the steam superheating technology, the actual state and the way how to realize the improvement in this control.
Radim Hyl, Renata Wagnerova
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Design Method for Predictive Cascade Control Structures
IFAC Proceedings Volumes, 2001Abstract The paper describes an aspect of advanced control techniques applied in cascade control structure. The cascade control structure has been developed by considering UPC (Unified Predictive Control) pole-placement controllers, calculated taking into account the dynamical separation of the control loops through an adequate choice of the ...
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Eine neue Kaskadenstruktur (A New Structure for Cascade Control)
at - Automatisierungstechnik, 2003Abstract Der Entwurf und die Inbetriebnahme von Kaskadenregelungen wird durch die in der üblichen Struktur stets vorhandene Abhängigkeit zwischen den Regelkreisen erschwert. Dieser Beitrag stellt eine aus Steuerungsüberlegungen gewonnene neue Kaskadenstruktur vor, die voneinander unabhängige Regelkreise aufweist.
Klemens Graf, C. Wurmthaler
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Controller Design Based on the Cascaded Structure
2008In the previous chapter a quite general approach to the control of flexible joint robots was treated, which was not at all restricted to the special problem of Cartesian impedance control. The main disadvantage of the singular perturbation approach is that only very weak stability statements can be made.
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