The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Although adaptive control offers a unique way to control dynamical systems without excessive reliance on their mathematical models, it is well known that nonidentical command profiles result in nonidentical closed-loop responses with such controllers, and therefore, it is of practical interest to study theoretical ways to construct predictable closed-loop responses when adaptive controllers are in...
In this paper, high precision motion control of piezo-actuated stage is discussed. In order to cope with the nonlinear characteristic of the piezoelectric actuator (PEA) and get high tracking performance, this paper proposes a new approach to design the discrete time sliding mode control (DSMC) with an ability to maintain the tracking error in a known region described by a performance function. The...
Switched reluctance motor (SRM) has the features of large starting torque, wide speed range and high reliability, which are appropriate for electric vehicles (EVs). A three-phase 12/8 pole SRM is designed for EVs application. The dynamic simulation model of SRM is built in Matlab/Simulink based on the flux linkage and torque characteristics. The EV simulation model is built combining SRM dynamic simulation...
Parturient paresis(milk fever) is a common disease associated with the onset of parturition in dairy cows. The disease is considered due to a large increased demand for calcium. Several work has mathematically and biologically modelled this process. Based on the existing models on calcium dynamics in diary cows, an optimal impulse treatment is proposed in this paper. The treatment is executed at a...
This paper presents a model-based approach to fault-adaptive control for damper lock-in place failures in variable-air-volume (VAV) boxes in building heating, ventilation and air-conditioning systems. The fault-adaptive controller integrates a dedicated bank of unknown input residual generators for fault detection/isolation followed by suitably designed fault estimators and a model predictive controller...
Unmanned Underwater Vehicles (UUVs) are being deployed in advanced applications that require precise manoeuvring close to complex underwater structures such as oilrigs and subsea installations or moving objects such as ships and submarines. The effect of vehicle's hydrodynamic parameter variations is significant in such scenarios and in extreme conditions the UUV may experience loss of control. In...
For quadrotor aircraft, atmospheric turbulence, wind shear, and model uncertainty are important factors which affect the quality of flight, or even lead to a failure of flight. In this paper, we consider the control problem of quadrotor aircraft with linear or nonlinear disturbances including model uncertainty. By employing backstepping technique, adaptive backstepping controllers are proposed which...
In this work, a novel model free adaptive control method based on a mathematical algorithm named double successive projection (DSP-MFAC) is proposed, from which it can be inferred that conventional MFAC algorithm is only a special case of DSP-MFAC with the Cartesian product of the output and the input Hilbert space. For a general unknown nonlinear system, an innovative partial form dynamic linearization...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.