PID Controller output the results of integral gain

Can the Discrete PID Controller module output the results of integral gain in real-time?

Answer 1

[Broy]

Hi @泽凯,

The Discrete PID Controller block does not provide individual term outputs (P, I, or D) directly. It only outputs the final summed control signal.

To monitor the integral gain in real-time, you can construct the PID Manually using individual Simulink blocks:

• Take your Error signal. Split it into three parallel branches.
• P-Branch: Connect Error -> Gain (K_p).
• I-Branch: Connect Error -> Gain (K_i) -> Discrete-Time Integrator block.
• D-Branch: Connect Error -> Discrete Derivative block -> Gain (K_d).
• Add all three branches together to get your control output.

Helpful Documentations:

• https://www.mathworks.com/help/releases/R2022b/simulink/slref/pidcontroller.html
• https://www.mathworks.com/help/releases/R2022b/simulink/slref/discretetimeintegrator.html
• https://www.mathworks.com/help/releases/R2022b/simulink/slref/discretederivative.html

Hope this is helpful.

[Kirk]

oh, I need this link https://www.mathworks.com/help/releases/R2022b/simulink/slref/pidcontroller.html blox fruits