Extension of Dual-rate Control System Independent of Discrete-time Reference/disturbance Response

In this study a control-oriented model is proposed to represent a wide range of non-linear discrete-time dynamic plants. As a testimony to the efficiency of the model structure for control system design, a pole placement controller is designed for non-linear discrete-time plants. Mathematically the solution of the controller output is converted into resolving a polynomial equation in the current control term u( t), which significantly reduces the difficulties encountered in non-linear control system synthesis and computational complexities. The integrated procedure provides a straightforward methodology to use in linear control system design techniques when designing non-linear control systems. For a demonstration of the effectiveness of the proposed methodology used to deal with practical problems, pole placement controllers are designed for three non-linear plants, including the Hammerstein model, a laboratory-scale liquid level system and a continuous stirred tank reactor. The simulation results are presented with graphical illustrations.

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Development of the attitude and rate control system of the TR-IA rocket using fiber optic gyros

10.2514/6.1992-4319 ◽

1992 ◽

Author(s):

HIDEHIKO MORI ◽

JIRO KOCHIYAMA ◽

MAKOTO MIWADA ◽

TOSHIAKI SATO ◽

TERUO FUJIWARA ◽

...

Keyword(s):

Control System ◽

Rate Control ◽

Fiber Optic

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State-space Design of a Dual-rate Control System Using the Null-space

2018 International Conference on Information and Communication Technology Robotics (ICT-ROBOT) ◽

10.1109/ict-robot.2018.8549914 ◽

2018 ◽

Author(s):

Ryota Yasui ◽

Natsuki Kawaguchi ◽

Takao Sato ◽

Nozomu Araki ◽

Yasuo Konishi

Keyword(s):

Control System ◽

State Space ◽

Rate Control ◽

Null Space ◽

Space Design

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Interval arithmetic-based fuzzy discrete-time crane control scheme design

Bulletin of the Polish Academy of Sciences Technical Sciences ◽

10.2478/bpasts-2013-0093 ◽

2013 ◽

Vol 61 (4) ◽

pp. 863-870 ◽

Cited By ~ 5

Author(s):

J. Smoczek

Keyword(s):

Control System ◽

Discrete Time ◽

Interval Arithmetic ◽

Material Handling ◽

Closed Loop ◽

Container Terminals ◽

Crane Control ◽

Loop Control ◽

Fuzzy Interpolation ◽

Polynomial Coefficients

Abstract In many manufacturing segments, container terminals and shipping yards the automation of material handling systems is an important element of enhancing productivity, safety and efficiency. The fast, precise and safe transfer of goods in crane operations requires a control application solving the problems, including non-collision trajectory planning and limitation of payload oscillations. The paper presents the interval arithmetic-based method of designing a discrete-time closed-loop anti-sway crane control system based on the fuzzy interpolation of linear controller parameters. The interval analysis of a closed-loop control system characteristic polynomial coefficients deviation from their nominal values is proposed to define a minimum number of fuzzy sets on the scheduling variables universe of discourse and to determine the distribution of triangular-shaped membership functions parameters, which satisfy the acceptable range of performances deterioration in the presence of the system’s parameters variation. The effectiveness of this method was proved in experiments conducted using the PAC system on the laboratory scaled overhead crane.

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