Steam pressure controlling method combining feedforward compensation open-loop with feedback close-loop control
A feedforward compensation and feedback control technology, applied in electric fluid pressure control, electric controllers, controllers with specific characteristics, etc., can solve the problem of slow control response speed, long adjustment time, and difficult PID control to stabilize, etc. problem, to achieve the effect of high control accuracy and fast response speed
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[0011] The method of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation.
[0012] like figure 1 As shown, it is a schematic flow chart of the method of the present invention, which generally shows the flow process of the method of the present invention, including: step 1, judging whether the feedforward plus feedback pressure composite control system is put into operation according to whether the vacuum exhaust system is running, and if it is running, then Execute step two, otherwise execute step six; step two, feedforward control to obtain the opening and closing actions of vacuum pumps at all levels and the corresponding delay processing time parameters and corresponding static parameters and dynamic parameters; at the same time, feedback control to obtain control pressure and actual pressure Value and PID parameter switching data and corresponding PID parameters; Step 3, execute feedforwa...
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