palash018 / PID_controller

PID Controller

This repository contains the implementation of a PID controller in C++. The PID controller is a feedback control algorithm widely used in control systems to regulate a process. It calculates an output based on the error between the desired setpoint and the current value, utilizing proportional, integral, and derivative control actions.

Usage

To use the PID controller, follow these steps:

1. Include the necessary header file in your project:

   #include "PID.h"

2. Create an instance of the PID controller by providing the appropriate coefficients: kp (proportional gain), ki (integral gain), and kd (derivative gain):

   PID pidController(kp, ki, kd);

3. Use the compute method to calculate the control output based on the current value and the desired setpoint:

   double controlOutput = pidController.compute(currValue, desiredValue);

   • currValue is the current value of the process being controlled.
   • desiredValue is the desired setpoint.

4. (Optional) Reset the PID controller coefficients to new values using the reset method:

   pidController.reset(newKp, newKi, newKd);

   • newKp, newKi, and newKd are the new values for the proportional, integral

Compilation

To compile the PID controller code, you can follow these steps:

1. Create a new C++ source file in your preferred editor and include the required header file:

   #include "PID.h"

2. Implement the main function and define the PID controller parameters, current value, and desired value:

   int main() {
       double kp = 0.5;
       double ki = 0.2;
       double kd = 0.1;
   
       double currValue = 5.0;
       double desiredValue = 10.0;
   
       // Create an instance of the PID controller
       PID pidController(kp, ki, kd);
   
       // Compute the control output
       double controlOutput = pidController.compute(currValue, desiredValue);
   
       // Print the control output
       std::cout << "Control Output: " << controlOutput << std::endl;
   
       return 0;
   }

3. Save the source file with a .cpp extension, for example, main.cpp.

4. Open your terminal or command prompt and navigate to the directory where you saved the source file.

5. Compile the code using a C++ compiler, such as g++:

   g++ main.cpp PID.cpp -o pid_controller

   This command compiles the main file along with

Learn More

To learn more about PID (Proportional-Integral-Derivative) controllers, you can visit the following resources:

• PID Controller on Wikipedia: Find detailed information about PID controllers, including their working principles, advantages, and applications.

We encourage you to explore these resources to gain a deeper understanding of PID controllers and how they can be used in various control systems.