this paper considers the problem of the compensation of an unknown dead zone in the input of a plant. A new compensation method is presented based on the estimation of an equivalent input disturbance (EID). Unlike oth...
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this paper combines an extended state observer (ESO) and adaptive sliding mode control to deal withthe problem of nonlinear input dead-zone, unkonw system function, external distrubance and system states unmeasured i...
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this paper is concerned withthe design of robust gain-scheduled controllers with guaranteed H∞ performance for a horizontal axis wind turbine (HAWT) with variable-speed and fixed-pitch. the control problem in terms ...
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A large, segmented space telescope requires high precision and accuracy in its mirror shape to obtain clear images. the Structures, Propulsion, and control Engineering (SPACE) telescope testbed at the NASA sponsored U...
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In most robotic applications, trajectory tracking control and vibration suppression in flexible link manipulator is a recurring problem, due to the unknown nonlinearities and strong coupling often caused by the presen...
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Due to product life cycle has been shortened rapidly, it forces the product generation and technology should be enhanced quickly. When technology generation change occurred, DRAM manufacturers always used the past exp...
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ISBN:
(纸本)9789898565211
Due to product life cycle has been shortened rapidly, it forces the product generation and technology should be enhanced quickly. When technology generation change occurred, DRAM manufacturers always used the past experiences to handle the change process. However, the issues are totally different and it made the companies suffered many difficulties. In this work, a production planning and control model is developed. the production planning focuses on CCR (Capacity Constraint Resources) to define the complete wafer release schedule and apply X-factor to schedule the production processes during the migration period. Regarding to the shop floor control, there are two control mechanisms to control and monitor the migration process, real time control and predicting control. WIP status is the important factor to decide whether the production planner needs to launch the rescheduling module or not in the real time control portion. Besides, a foresee function is performed by predicting control portion which firing the rescheduling module by the bias between the loading and capacity curves.
Maintenance of target position and/or orientation is essential for underwater vehicles (UWV) to successfully complete a mission. However, in the case of work class vehicles, station keeping becomes an important issue ...
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ISBN:
(纸本)9789898565211
Maintenance of target position and/or orientation is essential for underwater vehicles (UWV) to successfully complete a mission. However, in the case of work class vehicles, station keeping becomes an important issue due to the presence of disturbance forces and requires effective feedback mechanism to maintain the pose. Conventionally, the changes in position due to disturbance force is monitored and fed back to the station keeping controller to make necessary corrections. this introduces unnecessary delay in response and continuous variations in vehicle position. In this paper, an attempt has been made to develop a disturbance force measurement setup using strain gauges which will directly measure the disturbance forces which can be used for predicting the vehicle pose disturbance and make necessary corrections even before the vehicle starts responding to the disturbance forces. the methodology adopted for force measurement is presented and experimental analysis has shown promising results. this approach can be used as an alternative feedback mechanism for station keeping control of underwater Vehicles.
Evolutionary algorithms are optimization methods and their basic idea lies in biological evolution. they suit well for large and complex optimization problems. In this study, differential evolution is applied for iden...
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this work presents a symbiotic filtering approach enabling the exchange of relevant word features among different users in order to improve local anti-spam filters. the local spam filtering is based on a Content- Base...
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