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This paper introduces the disadvantages of process control experimental systems used in the colleges nowadays, designs five-vessel liquid system to replace the original three tanks and four tanks system, exploited Oxygen absorptivity measure experimental system, and designs parameter soft measure and control experiment, and found the small distributed control system to control. The control system...
A new method of the optimal sliding mode variable structure control is presented to eliminate the extraneous torque in the load simulator. The mathematical model of the load simulator is enlarged by incorporating the torque reference input with integral action. By proper state transformation, the construction of the optimal sliding surface equals to the design of the feedback matrix in the linear...
A Kind of networked control system with packet dropout is modeled as asynchronous dynamical systems, and the integrity design of the networked control system with actuators failures is analyzed using hybrid systems technique based on fault-tolerant control theory. Parametric expression of controller is given based on feasible solution of linear matrix inequality. After detailed theoretical analysis,...
Jet element is the key element of the attitude control system of some aircrafts. The switch time of jet element is critical factor to control precision. In this study, Jet element is investigated and the math model of jet element is constituted in order to decrease the switch time. The factors which effect the switch time are studied. The static and dynamic characteristics of the device were investigated...
This paper presents the problem of trajectory tracking control for the nonholonomic six-wheeled mobile robot. Based on backstepping control algorithm, a switch function for quasi-sliding mode control is designed and a quasi-sliding mode controller with global asymptotically stability is proposed for the kinematic model. This method simplifies the controller design and is applicable to the trajectory...
This paper presents a method for the identification of the fault parameters of hybrid systems with unknown mode changes after fault occurring. The identification method utilizes genetic algorithm (GA) to identify fault parameters and unknown mode changes simultaneously based on global analytical redundancy relation (GARR). Fault parameters and mode change time of all switches are encoded into one...
An optimal sliding mode control (OSMC) scheme with application to track-following control in hard disk drives (HDDs) is developed that explicitly takes into account unmatched nonrepeatable disturbance in this study. To reconstruct estimates of the system states for use in a full information sliding mode control law, the well-known Kalman filter is employed and the fulfillment of sliding condition...
In this paper, for a missile with blended lateral jets and aerodynamic fins, output tracking is realized by a switching control in a hybrid control architecture. The switching control strategy is divided into four phases in terms of practical guidance and control course. The switching conditions, from one phase to another, are given. Lateral jets and aerodynamic fins are adopted separately in respective...
In this work, we consider the design of a nonlinear control system for an unmanned combat air vehicle for executing agile maneuvers over the full flight envelope. From the inspection of well known smooth aerobatic and combat maneuvers, we see that complex maneuvers can be decomposed into a specific set of different sub maneuvers to cover any arbitrary flight maneuver. To control each sub mode an inner/outer...
The furnace combustion system of circulating fluidized bed boiler (CFBB) must ensure the steam pressure as a constant via controlling the coal quantity and wind flow. Another important role is to avoid the temperature varying excessively which will result in the high temperature agglomeration or low temperature agglomeration in boiler. Based on the model and characteristic analysis of combustion system,...
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