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Nonlinear adaptive switching control for a class of non-affine nonlinear systems 被引量:2
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作者 Miao Huang Xin Wang Zhenlei Wang 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2016年第9期1243-1251,共9页
An improved nonlinear adaptive switching control method is presented to relax the assumption on the higher order nonlinear terms of a class of discrete-time non-affine nonlinear systems. The proposed control strategy ... An improved nonlinear adaptive switching control method is presented to relax the assumption on the higher order nonlinear terms of a class of discrete-time non-affine nonlinear systems. The proposed control strategy is composed of a linear adaptive controller, a neural network(NN) based nonlinear adaptive controller and a switching mechanism. An incremental model is derived to represent the considered system and an improved robust adaptive law is chosen to update the parameters of the linear adaptive controller. A new performance criterion of the switching mechanism is designed to select the proper controller. Using this control scheme, all the signals in the system are proved to be bounded. Numerical examples verify the effectiveness of the proposed algorithm. 展开更多
关键词 Non-affine nonlinear systems Nonlinear adaptive switching control incremental model
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Comparative Analysis of Sonar Heads Drive Systems
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作者 Ion Voncila Razvan Buhosu Elena Voncila 《Journal of Energy and Power Engineering》 2012年第9期1453-1460,共8页
This paper is dealing with a comparative analysis, from technical point of view of the solutions with the highest potentiality utilized in sonar heads drives. Even though the use of DC servomotors is a convenient solu... This paper is dealing with a comparative analysis, from technical point of view of the solutions with the highest potentiality utilized in sonar heads drives. Even though the use of DC servomotors is a convenient solution for most customers, from some modem analysis criteria points of view, this type of drive system has a low reliability and a greater impact on the environment, compared to AC servomotors. From this class of AC servomotors, high behaviors, in such an application, have stepper motors and electronically commutated motor (brushless DC). That is why, analysis in this paper, balances these two classes of AC servomotors. The systems performed are analyzed in Matlab/Simulink and PowerSim environments. 展开更多
关键词 Synchronous servomotors position incremental control systems brushless DC motors sonar heads drives.
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