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Due to the complexity and non-linearity of the pitch control system, the pitch angle could not be controlled accurately by traditional PI control. To solve the problem, a prediction-correction pitch control strategy is proposed in this paper. The strategy first processes the wind speed by moving average method, and then gets the prediction value of pitch angle by using wind speed-pitch angle curve-fitting...
In this paper, we present the design and the architecture of the CloudDB AutoAdmin system which aims to fill the existing gaps between the provided cloud database services and the requirements of the consumer applications. In particular, it focuses on facilitating the job of the cloud database consumers in implementing database applications as distributed, scalable, and elastic services with a minimum...
This paper presents numerical procedure of linear linguistic control systems(LLCSs) and their stabilities using IT2 fuzzy approach. Firstly, When multiple uncertain property of information is considered, interval type-2 fuzzy sets (IT2FSs) are rightly employed to be basic variables in the LLCSs. Consequently, linear conventional control systems (LCCSs) are abstracted into their linguistic counterparts...
In this paper, the strong and weak convergence of nonlinear finite-time stable tracking differentiators is presented under some easy checkable conditions. A second order nonlinear differentiator is constructed by using homogeneity in geometry. Numerical simulation shows that this tracking differentiator has advantages compared with the existing ones. The application to the stabilization control of...
This paper takes a kind of 3-TPS Parallel Machine Tool (PMT) as the objective of research. The positive and inverse kinematics equations of constraint chain are established through the kinematics analysis to the constraint chain of this machine, the inverse kinematics equation that has unique solution is also further obtained after the joint angle ranges in the machine were determined. Then the expressions...
A synchronous control system for three-motor is presented in this paper. The control system includes three intelligent PID controllers based on BP neural network arithmetic which adjusts the parameters of PID controllers on-line, and neuron decoupling compensator fulfilling open loop decoupling of multi-variable. The results of experiment indicates that the control system can get some optimal parameters...
Multi-motor synchronous system is being widely applied in industrial field, in order to ulteriorly improve synchronous performance of multi-motor system, this paper presents a synchronous control system for three-motor which includes three intelligent PID controllers based on BP neural network arithmetic which adjusts the parameters of PID controllers on-line, and neuron decoupling compensator fulfilling...
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