Node-red-contrib-pid delete I-contribution

General
10

Hi Jan,

It sounds like you're dealing with a classic issue in PID control, especially in systems with long heat-up times. Here are some suggestions to manage the integral contribution and mitigate overshoot:

  1. Reset Integral Windup: If the node-red-contrib-pid allows it, look for a method to reset the integral term when switching between controllers. This could be done by manually setting the integral value to zero in your PI controller when it takes over.
  2. Anti-Windup Strategies: Implement an anti-windup mechanism. This can involve clamping the integral contribution within a specific range or only allowing the integral to accumulate when the error is within a certain threshold.
  3. Gain Tuning: Experiment with tuning the PID gains, particularly the integral gain. Lowering the integral gain can help reduce overshoot, though it may slow the system's response.
  4. Using Conditional Logic: Use a function node to manage the transitions between your P and PI controllers. You can switch the control strategy based on the current state of the system, ensuring that the I-contribution is handled appropriately.
    If you provide more details about your current implementation, I might be able to suggest more specific changes. Good luck! for better understanding come to this site https://iqratechnology.com/