Then, it studied the different control effect of the three control regulation: Proportional control, Integration control and Differential control in the increment PID algorithm.
Make these two arithmetic's ActiveX controllers and increment PID arithmetic ActiveX controller by VB6.0 and VC++6.0, and add them in configuration software;
The article introduces the temperature automatic control system which bases on 8031 single chip microcomputer, takes the entry temperature of air introducer of dryer system and the exit temperature of combustion furnace as main signals and adopts the increment PID controlling algorithm.
Finally, the control algorithm was researched and the advantage and shortness of three PID algorithms that are traditional PID, position PID and increment PID, were introduced respectively.
Using the incremental PID formula in the carbon potential control, the carburizing software can manage the whole carburizing process, and can still give the alarm for safety protection.
At the same time, the incremental PID is used in the system ,and it realizes the dynamic control of the warp tension so as to can improve the quality of fabrics.
A cascade PID control system based on MATLAB is designed,which is controlled by MATLAB control program based on incremental PID control algorithm and PID parameter tuning method based on computer control.
The incremental PID algorithm is applied in the electro-hydraulic servo valve control system to achieve accurate control,and the industrial PC(IPC),Counter/Timer and D/A module are adopted in the hardware design.
Regarding the hysteretic properties and time-varying of the system, the scan round performance of the controller, adopt incremental PID algorithm in constant-pressure controlling and combine it with the integral-separated dead-zone algorithm as appropriate for the situation of the measuring system and applies fuzzy self-tuning to control PID controller parameters.
The system software consists of two portions, one of them which calculates Maximum Power Point (P_max) current by incremental conductance algorithm is named "current loop", and the other one voltage loop adjust the output DC voltage by the PWM method. The voltage loop is actualized by the DC/DC buck-boost converter and the discrete incremental PID algorithm to controlthe output voltage.
Regarding the hysteretic properties and time-varying of the system, the scan round performance of the controller, adopt incremental PID algorithm in constant-pressure controlling and combine it with the integral-separated dead-zone algorithm as appropriate for the situation of the measuring system and applies fuzzy self-tuning to control PID controller parameters.
According to the traits of the field control of the hydraulic fracturing operation, several intelligent control algorithms, such as position PID algorithm and incremental PID algorithm are put forward and the algorithm principle and the software implementation are described.
The incremental PID algorithm is applied in the electro-hydraulic servo valve control system to achieve accurate control,and the industrial PC(IPC),Counter/Timer and D/A module are adopted in the hardware design.
Another incremental PID controller, based on the diagonal recurrent neural network (DRNN) dynamic identification, is used to control anode pressure to be more stable and exact by adjusting the hydrogen flow rate.