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Aiming at multiple input uncertainty high-order nonlinear ball and plate system, a control strategy of cascade control with multiple auto-disturbance-rejection controls is proposed. To improve the adaptive ability of the ADRC, RBF neural network is used in the parameters optimization. The simulation experiments show that the proposed control method can effectively solve the problems of coupling and...
Dissolved Gas Analysis (DGA) is a popular method to detect and diagnose different types of faults occurring in power transformers. In this paper, a improved Elman neural network is uesed to resolve the online fault diagnosis problems for oil-filled power transformer. Because of the uncertainty factors of the transformer faults, a method using fuzzy math theory to deal with the data of the neural network...
Ball and plate system is a high-order, uncertainty, nonlinear systems. Aiming at this system, a cascade control strategy with low-order active disturbance rejection controller (ADRC) is proposed in this paper. After the nonlinear system is converted into cascade system of several low-order nonlinear subsystems, the controller can be designed. This strategy solves the difficulties of structure design...
Aiming at a class of higher order, strong coupling, uncertainty nonlinear systems such as ball and plate system, a cascade control strategy with low order active disturbance rejection control (ADRC) is proposed when the nonlinear system is converted into cascade system of several low order nonlinear systems. The difficulty of parameter setting with higher order ADRC is resolved through this strategy...
Aiming at Ball and plate system is a nonlinear, and under-actuated system system. the sliding mode control with uncertain items observe compensation is proposed, the nonlinear and uncertain items can be estimated in the control method, from the compensation uncertain items perspective, the decoupling and Linearization can be realized. The result of simulation and experiments indicate the proposed...
In this paper a novel control strategy, the active disturbance rejection control (ADRC) is applied to the trajectory tracking design of ball and plate system. In the ADRC framework, the disturbance and coupling are treated as an additional state variable, which is then estimated and compensated for in real time. In addition, the using of a new nonlinear state error feedback control law in the ADRC...
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