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This article presents a model library of generic components to build virtual Avionics Full Duplex Switched Ethernet (AFDX) networks. The presented library is a blockset for MATLAB/Simulink. The functional behavior of the simulation library's basic building blocks represent the scheduling and routing in AFDX end systems and switches on frame level. The graphical nature of Simulink allows to model AFDX...
This manuscript provides a novel method to improve occupied area, speed and power consumption of Infinite Impulse Response (IIR) decimation filter. The filter is design using proposed Merged Delay Transformed (MDT). First, mathematical calculation is performed and then applied effectively to first- and second-order IIR filters. The performance of the proposed design is compared with the exiting polyphase...
In today's electricity market, the power supply enterprises have to face power quality problems. The reducing of power system frequency threaten the safety of power grids. At this time, we have to use the Under Frequency Load Shedding(Hereinafter referred to as the UFLS) device to remove partial load, to restore the system frequency within the level of security. UFLS device, therefore, the correct...
Constant pressure water supply system is a complex time-delay system which makes it difficult to ensure the good control performance and fast response in the working condition for traditional PID control. This paper presents a speed control system of constant pressure pump unit based on fuzzy self-tuning PID control strategy which can realize parameter tuning of PID real-timely. According to a real...
In some industrial process control systems with time delay, the delay-time is constantly changing due to various reasons (eg. the variation of pneumatic pressure). Thus the delay-time is a bounded perturbation parameter in the system. Such industrial process control systems are a kind of non-linear control systems with bounded parameter-perturbation. Reference [1~4] put forward a new stability criterion...
The operation principle of peak current mode control H bridge converter was analyzed. It can observe nonlinear phenomena in H bridge converter after simulating to the model, which builds by the concept of binary logic variables using Matlab/Simulink. According to the characteristics of H bridge converter, a time-delayed feedback control method was applied to suppress the chaos behavior of H bridge...
Networked control system (NCS) is a kind of closed loop control systems where the sensors, the controller and the actuators exchange data through network. Because the networks, in which the band width is limited, are introduced in the systems, some new issues appear unavoidably. At present, the research of networked control system becomes a focus area in control engineering. According to the characteristics...
According to the bad control effect of PID in parameters adjusting in time-delay system, DMC prediction control is applied to time-delay system, and then this method is simulated in MATLAB. Simulation example illustrates that robustness and anti-interference are better by DMC prediction control than PID. Not only the regulation velocity is faster, but also the method of parameter adjusting is simpler...
A new stability criterion based on numerical computing and simulation for nonlinear time-invariant systems is presented. It provides a standard and simple way to construct the energy-like function. The relevant proof has been given to justify this stability criterion. In the environment of MATLAB, this method is successfully applied on a practical industrial process control system with time-delay...
This paper addresses the synchronization control between Lurie chaotic systems by means of LMI. moreover, synchronization between the time-delay systems has been investigated. By the method of LMI, the control function is designed and the parameterpsilas range is obtained when the two time-delay systems are synchronous. Numerical simulations by Matlab indicate the feasibility of the method. Furthermore,...
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