Hi, I am a beginner in Arduino programming. I want to control a constant speed of a DC motor with PID controller and encoder my idea is: Arduino controls the motor driver of the DC motor (target speed). Encoder reports speed to Arduino (actual speed). PID controller regulates the speed constant…

Please show your output. We don't have your motor (they vary wildly in size, speed, and inertia) or wiring here, so it's hard to tell exactly what is wrong. You might try reducing these parameters: [image] a.az: double Kp=2, Ki=5, Kd=1; I'd try "Kp = 1, Ki =0, Kd =0; " to eliminate integ…

Thank you for your response output for these parameters: double Kp=2, Ki=5, Kd=1; is -> Output = 255.00 -> Input = 3.00 -> Output = 255.00 -> Input = 138.00 -> Output = 255.00 -> Input = 138.00 -> Output = 255.00 -> Input = 138.00 -> Output = 0.00 -> Input = 138.00 -> Output = 0.00 …

Cool. 100/255 power isn't strong enough to start your motor, 255/255 gets you to a top speed of 138 in 50ms. Two things: If the system comes to full speed in 50ms as shown, the PID's default deltaTime should be much smaller than its default of 100ms. Try try shortening the sampling time to 1/10 …

with Kp= 2.5 and myPID.SetSampleTime(2); // 2ms from 50ms/3/10 Input = ovf Output = 0.00 Input = ovf Output = 0.00 Input = ovf Output = 0.00 Input = ovf Output = 0.00 Input = ovf Output = 0.00 Input = ovf Output = 0.00 Input = ovf Output = 0.00 Input = ovf Output = 0.00 Input = ovf Output = 0.00 …

Yes, if you don't have a reliable speed measurement, you can't use it for control. Looking deeper, when you got speed results, you get 138RPM, which would mean 138*100*60/60 = 13800 pulses per second\\\minute. At target speed, that's 10000\\\167 pulses per second. You could sample much faster t…

Thank you, yes is a big problem with the speed measurement I don't have a reliable encoder speed measurement yet. with new update is output: motor rotates in 100 milliseconds then stops in 100 milliseconds like this constantly 5Input = 55.82 Output = 110.44 6000 Input = 66.57 Output = 83.57 …

[image] a.az: Arduino controls the motor driver of the DC motor Which motor, which driver?

I mean the target value Setpoint = 100 there is only one dc motor and one drive DC24V40RPM DC motor and MD30C R2 30A DC Motor Driver

PID controller speed control for a DC motor with encoder

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Railroader April 26, 2022, 2:53pm 3

Posting schemaics showing all the powering would be good.

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PID controller speed control for a DC motor with encoder

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