scholarly journals Internet Based Control System Design

2021 ◽  
Author(s):  
Yan Feng
Keyword(s):  
Control Strategy ◽  
High Performance ◽  
State Feedback ◽  
Closed Loop ◽  
State Feedback Control ◽  
Experimental Result ◽  
Closed Loop System ◽  
Local Computer ◽  
Remote Controller ◽  
Feedback Control Strategy

The thesis presents a novel Internet-based controller designed with the remote controller computer synchronizing its clock with the local computer. An observer-based state feedback control strategy is proposed to compensate the Internet delay and improve the system performance. Asymptotic stability of the closed-loop system is achieved without the assumption of reliable transmission from the controller computer to the local computer, which reduces the requirement for high performance Internet access. Computer simulations are conducted to evaluate the proposed control strategy, and the results have confirmed its effectiveness. The experimental result have demonstrated the supreme performance of the proposed control strategy.

scholarly journals Internet Based Control System Design

2021 ◽  
Author(s):  
Yan Feng
Keyword(s):  
Control Strategy ◽  
High Performance ◽  
State Feedback ◽  
Closed Loop ◽  
State Feedback Control ◽  
Experimental Result ◽  
Closed Loop System ◽  
Local Computer ◽  
Remote Controller ◽  
Feedback Control Strategy

The thesis presents a novel Internet-based controller designed with the remote controller computer synchronizing its clock with the local computer. An observer-based state feedback control strategy is proposed to compensate the Internet delay and improve the system performance. Asymptotic stability of the closed-loop system is achieved without the assumption of reliable transmission from the controller computer to the local computer, which reduces the requirement for high performance Internet access. Computer simulations are conducted to evaluate the proposed control strategy, and the results have confirmed its effectiveness. The experimental result have demonstrated the supreme performance of the proposed control strategy.

A Digital Algorithm for Near-Minimum-Time Control of Robot Manipulators

1987 ◽  
Vol 109 (4) ◽  
pp. 320-327 ◽  
Author(s):  
C. K. Kao ◽  
A. Sinha ◽  
A. K. Mahalanabis
Keyword(s):  
Control Algorithm ◽  
State Feedback ◽  
Closed Loop ◽  
Robot Manipulator ◽  
Minimum Time ◽  
State Feedback Control ◽  
Final States ◽  
Closed Loop System ◽  
Time Control ◽  
Digital Algorithm

A digital state feedback control algorithm has been developed to obtain the near-minimum-time trajectory for the end-effector of a robot manipulator. In this algorithm, the poles of the linearized closed loop system are judiciously placed in the Z-plane to permit near-minimum-time response without violating the constraints on the actuator torques. The validity of this algorithm has been established using numerical simulations. A three-link manipulator is chosen for this purpose and the results are discussed for three different combinations of initial and final states.

Multi-State Feedback Control Strategy for Maglev Elastic Vehicle-Guideway-Coupled System

2012 ◽  
Vol 5 (2) ◽  
pp. 587-592 ◽  
Author(s):  
Longhua She ◽  
Zhizhou Zhang ◽  
Dongsheng Zou ◽  
Wensen Chang
Keyword(s):  
Feedback Control ◽  
Control Strategy ◽  
State Feedback ◽  
Coupled System ◽  
State Feedback Control ◽  
Feedback Control Strategy

scholarly journals StochasticH∞Control for Discrete-Time Singular Systems with State and Disturbance Dependent Noise

2017 ◽  
Vol 2017 ◽  
pp. 1-10
Author(s):  
Yong Zhao ◽  
Xiushan Jiang ◽  
Weihai Zhang
Keyword(s):  
Discrete Time ◽  
State Feedback ◽  
Closed Loop ◽  
Singular Systems ◽  
State Feedback Control ◽  
Linear Matrix ◽  
Mean Square ◽  
Matrix Inequalities ◽  
Closed Loop System ◽  
Theoretical Results

This paper is concerned with the stochasticH∞state feedback control problem for a class of discrete-time singular systems with state and disturbance dependent noise. Two stochastic bounded real lemmas (SBRLs) are proposed via strict linear matrix inequalities (LMIs). Based on the obtained SBRLs, a state feedbackH∞controller is presented, which not only guarantees the resulting closed-loop system to be mean square admissible but also satisfies a prescribedH∞performance level. A numerical example is finally given to illustrate the effectiveness of the proposed theoretical results.

Stabilization and disturbance attenuation control of the gyroscopic inverted pendulum

2020 ◽  
pp. 107754632092914
Author(s):  
Unggul Wasiwitono ◽  
Arif Wahjudi ◽  
Ari K Saputra ◽  
Yohanes
Keyword(s):  
Control Strategy ◽  
State Feedback ◽  
Inverted Pendulum ◽  
State Feedback Control ◽  
Disturbance Attenuation ◽  
Linear Matrix ◽  
Control Moment Gyroscope ◽  
Control Moment ◽  
Unstable Equilibrium Point ◽  
Feedback Control Strategy

In this study, a control moment gyroscope is used as an actuator to stabilize the inverted pendulum. A control strategy is proposed to stabilize the inverted pendulum at the upright unstable equilibrium point and to maintain the gimbal angle as small as possible. Such a problem is formulated as a constrained H∞ disturbance attenuation problem and then transformed into solving linear matrix inequalities. The performance of the proposed controller is evaluated through simulation for linear and nonlinear cases. It is shown that the proposed state-feedback control strategy effectively stabilizes the inverted pendulum.

Stability and performance comparison analysis for linear active disturbance rejection control–based system

2022 ◽  
pp. 014233122110659
Author(s):  
Jia Song ◽  
Jiangcheng Su ◽  
Yunlong Hu ◽  
Mingfei Zhao ◽  
Ke Gao
Keyword(s):  
Disturbance Rejection ◽  
State Feedback ◽  
Closed Loop ◽  
Transfer Functions ◽  
State Feedback Control ◽  
Closed Loop System ◽  
Active Disturbance Rejection ◽  
Disturbance Rejection Control ◽  
Parameter Perturbations ◽  
And Performance

This paper investigates the stability and performance of the linear active disturbance rejection control (LADRC)–based system with uncertainties and external disturbance via transfer functions and a frequency-domain view. The performance of LADRC is compared with the state-observer-based state feedback control (SOSFC) and state feedback control (SFC). First, the transfer functions and the error transfer functions for LADRC, SOSFC, and SFC are studied using the state-space method. It is proven that the LADRC-, SOSFC-, and SFC-based closed-loop systems have the same transfer function from the reference input to the output and achieve the same control effects for the nominal system. Then, it is proven for the first time that the LADRC has a better anti-interference ability than the SOSFC and SFC. Besides, the asymptotic stability condition of LADRC-based closed-loop system considering large parameter perturbations is given first. Moreover, the sensitivity analysis of the closed-loop system is carried out. The results show that the LADRC has stronger robustness under parameter perturbations. According to the results, we conclude that the LADRC is of great disturbance rejection ability and strong robustness.

Sign in / Sign up

Export Citation Format

Share Document