A fractional-order control strategy for pneumatic position servosystem is presented in this paper. The idea of the fractional calculus application to control theorywas introduced inmanyworks, and its advantages were proved. However, the realization of fractional-order controllers for pneumatic position servosystems has not been investigated. Based on the relationship between the pressure in cyl...

Phase-locked technology in motor speed control system has a wide range of applications. Especially for high accuracy in the motor steady speed operation situation, more and more use of phaselocked servo control system. This paper describes the block diagram and mathematical model of phaselocked control system, Shows the circuit parameter calculation method. This and combined with design example...

This paper discusses the design and implementation of networked predictive control systems. A networked predictive control algorithm is proposed to compensate the network delay and achieve desired control performance of networked control systems. Two schemes of networked control systems are presented: one is the off-line simulation scheme and the other is a real-time application. Based on a net...

The aim of the paper is to present tuning equations for one-degree-of-freedom (1DoF) proportional integral (PI) and proportional integral derivative (PID) controllers. These are based on a performance/robustness trade-off analysis with firstand second-order plus deadtime models. On the basis of this analysis a tuning method is developed for 1DoF PI and PID controllers for servo and regulatory c...

This paper presents a multirate H 1 optimal digital redesign of continuous time controllers. It focuses on the performance of the closed loop system under digital control. The resulting approximation criterion is a measure for stability of the control system. The discrete time controller is obtained through minimization of this criterion , which can be performed with standard software used for ...

In the paper, a fuzzy variable structure control with a harmonizing mechanism has been developed and applied to the positioning control of an electro-hydraulic servo system. The simulation experiment results show that the performance by using the controller is better than those by just only using either fuzzy controller or variable structure controller. In addition, it also demonstrates that it...

This paper presents the LQ-Servo control with observer for TCP/AQM system considering an input time-delay. This controller structure is made by taking a traditional servo mechanism based on Linear Quadratic approach and by augmenting a new state variable to the feed forward loop. In order to estimate the state of TCP window packet size, the control structure is extended with observer based on K...

If pressure natriuresis is to play an important role in arterial pressure control, renal perfusion pressure must have a long-term effect on urinary sodium excretion. The aim of this study was to quantitate the importance of renal perfusion pressure per se in controlling renal hemodynamics and electrolyte excretion chronically. Female mongrel dogs (n = 6) were instrumented with bilateral renal a...

This study aims to develop a X-Y dual-axial intelligent servo pneumatic-piezoelectric hybrid actuator for position control with high response, large stroke (250 mm, 200 mm) and nanometer accuracy (20 nm). In each axis, the rodless pneumatic actuator serves to position in coarse stroke and the piezoelectric actuator compensates in fine stroke. Thus, the overall control systems of the single axis...

In this paper, we present a general approach to automatically visual-servo control the position and shape of a deformable object whose deformation parameters are unknown. The servo-control is achieved by online learning a model mapping between the robotic end-effector’s movement and the object’s deformation measurement. The model is learned using the Gaussian Process Regression (GPR) to deal wi...