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This paper establishes the mathematical model of the three degrees freedom hydraulic turntable system, and presents a new design method and procedures of the variable structure control(VSC) system, and a new control law based Lyapunov theory. In this paper, simulation experiments of three degree freedom electrical-hydraulic turntables are conducted, and researches the robustness characteristic of...
This paper proposes a novel method of online modeling and control via the Takagi-Sugeno (T-S) fuzzy-neural model for a class of uncertain nonlinear systems with some kinds of outputs. Although studies about adaptive T-S fuzzy-neural controllers have been made on some nonaffine nonlinear systems, little is known about the more complicated uncertain nonlinear systems. Because the nonlinear functions...
An adaptive sliding mode speed and position observer for sensorless control of brushless DC motor (BLDCM) is proposed in this paper. According the mathematical model of BLDCM, the sliding surface was defined based on the errors between actual and estimated currents. Equivalent control and model reference adaptive control (MRAC) is used to obtain position and speed signals of the rotor. The Lyapunov...
This paper studies the basic structure and principles of the three degrees of the freedom turntable system, and establishes its mathematical model. It describes the design theory and procedures of the variable structure control system, presents a new design method of the variable structure control (VSC) of electrical-hydraulic turntables, analyzes in theory the robustness of the VSC, and discusses...
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