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Hi,
We are to control the position of a mass using two on/off solenid valves. Since the actuation is on/off type, continuous and proportional position control may be modulated by changing the widths of the on/off pulses.
Is there a well known strategy for that type of control? Especially for on/off solenoid valves?
The way that we are pursuing will be composed of following steps;
1. Design the conventional (PI,PID, ...) controller for the position loop as the plant is being actuated proportionally (in simulation)
2. Apply the PWM scheme on the designed controller to actuate the valves (talking on software application of PWM.. say Matlab..)
3. Make necessary tunings on the controller and PWM parameters
Is it possible to control the position with these steps? Or is it necessary that the PWM control has to be designed especially for velocity loop and then covered with a simple proportional control on position?
Can you offer better ways or existing control schemes and necessary reading material?
Thanks a lot.
Ozgur
We are to control the position of a mass using two on/off solenid valves. Since the actuation is on/off type, continuous and proportional position control may be modulated by changing the widths of the on/off pulses.
Is there a well known strategy for that type of control? Especially for on/off solenoid valves?
The way that we are pursuing will be composed of following steps;
1. Design the conventional (PI,PID, ...) controller for the position loop as the plant is being actuated proportionally (in simulation)
2. Apply the PWM scheme on the designed controller to actuate the valves (talking on software application of PWM.. say Matlab..)
3. Make necessary tunings on the controller and PWM parameters
Is it possible to control the position with these steps? Or is it necessary that the PWM control has to be designed especially for velocity loop and then covered with a simple proportional control on position?
Can you offer better ways or existing control schemes and necessary reading material?
Thanks a lot.
Ozgur