Controllers
Introduction
In general, controllers are used to change chamber and/or element inputs while the solver is running. You can use them in Steady and Transient analysis. Use controllers to gauge a variable(s), apply a calculation (for example, a transfer function), and then manipulate a variable(s).
- Feed-forward Controller (create using “Controller” from the Element Library)
- Mission Controller (create using “Controller” from the Element Library)
- PID Controller (create using “PID Controller” from the Element Library)
![](../../../images/internal/solver_technical_manual/formulations/controllers/controllers.png)
Figure 1.
![](../../../images/internal/solver_technical_manual/formulations/controllers/pid_controller.png)
Figure 2.