Modeling, design, and evaluation of advanced teleoperator control systems with short time delay

1993 ◽  
Vol 9 (5) ◽  
pp. 607-623 ◽  
Author(s):  
Sukhan Lee ◽  
Hahk Sung Lee
Keyword(s):  
Time Delay ◽  
Control Systems ◽  
Short Time ◽  
Short Time Delay

H∞ Robust Control for Networked Control System with Short Time-Delay

2014 ◽  
Vol 556-562 ◽  
pp. 5501-5505 ◽  
Author(s):  
Ping Qian ◽  
Wen Rui Wang ◽  
Xue Qiang Li ◽  
Yin Zhong Ye
Keyword(s):  
Time Delay ◽  
Control Systems ◽  
Controller Design ◽  
Networked Control Systems ◽  
Design Method ◽  
Networked Control System ◽  
Networked Control ◽  
Linear Matrix ◽  
Short Time ◽  
Short Time Delay

For a kind of networked control systems with short time-delay, establish discrete time-invariant system model. Construct the Lyapunov function based on the Lyapunov asymptotic stability principle. Using Linear Matrix Inequalities method given the sufficient condition of H∞ robust controller design method of closed-loop feedback control systems. Matlab simulation indicates the effectiveness and correctness of the controller design.

Controllability of Multi-Rate Networked Control Systems with Short Time Delay

2011 ◽  
Vol 219-220 ◽  
pp. 855-859 ◽  
Author(s):  
Qi Xin Zhu
Keyword(s):  
Time Delay ◽  
Control Systems ◽  
Stochastic Systems ◽  
Systems Approach ◽  
Networked Control Systems ◽  
Mathematic Model ◽  
Networked Control ◽  
Control Loops ◽  
Short Time ◽  
Short Time Delay

Feedback control systems wherein the control loops are closed through a real-time network are called networked control systems. Multi-rate networked control systems mean the sampling rates of notes in networked control systems are not the same. The controllability of multi-rate networked control systems are investigated in this paper for the first time. Based on the mathematic model of multi-rate networked control systems with short time delay, some sufficient or necessary conditions for controllability of multi-rate networked control systems are got using stochastic systems approach.

Suppression of runaway electron generation by massive helium injection after induced disruptions on TEXTOR

2015 ◽  
Vol 81 (5) ◽  
Author(s):  
A. Lvovskiy ◽  
H. R. Koslowski ◽  
L. Zeng ◽  
Keyword(s):  
Time Delay ◽  
Runaway Electron ◽  
Critical Density ◽  
Runaway Electrons ◽  
Electron Generation ◽  
Disruption Mitigation ◽  
Order Of Magnitude ◽  
Short Time ◽  
Short Time Delay

Disruptions with runaway electron generation have been deliberately induced by injection of argon using a disruption mitigation valve. A second disruption mitigation valve has been utilised to inject varying amounts of helium after a short time delay. No generation of runaway electrons has been observed when more than a critical amount of helium has been injected no later than 5 ms after the triggering of the first valve. The required amount of helium for suppression of runaway electron generation is up to one order of magnitude lower than the critical density according to Connor & Hastie (1975) and Rosenbluth & Putvinski (1997).

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