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Aiming at the control requirements of high speed, accuracy and stability for Continuous Variable Camshaft Timing (CVCT) system, an approach is proposed to adjust PID parameters online and realize by hardware. It combines fuzzy controller with PID controller to realize the self-adjustment of the PID control parameters in which the phase error e and the phase error rate ec are as inputs and the PID...
The normal PID control of the turbine speed can not meet the control demand. Therefore, a method to design PID-like fuzzy controller with FPGA is proposed, and the PID parameters can be adjusted on line through the fuzzy inference system which used in the controller is aided with active rules selection mechanism. The design methods with FPGA of the processes such as treatment of gains, fuzzification,...
This paper introduce the arithmetic design of fuzzy control based on FPGA and the application of chemical manufacture process control. The method of its implementation and parameter selection are proposed. The experimental result shows that the temperature control performance of this regulatory system following the mode of fuzzy control is better than PID control, especially in the ways of working...
In order to solve the problem of precise control of non-linearity system, a digital fuzzy-PID controller is designed by combining the advantages of fuzzy inference and PID controller based on FPGA. First, the model of the controller is established on the platform of Simulink. Simulation result shows that the controller exhibits a good transient response and a stable control action despite of the divergent...
Coupling is a common phenomenon in process control system, which will decrease the performance of control systems. And what's worse, if the coupling is serious, the system can not work[1]. Therefore, it is significant to research decoupling in the fields of control theory and project practice. Nowadays, decoupling is always implemented by software. However, this method canpsilat satisfy the controlled...
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