Final answer:
The three basic control methods are Feedback control, Feedforward control, and Symmetry control.
Step-by-step explanation:
The three basic control methods are Feedback control, Feedforward control, and Symmetry control.
Feedback control is a control method that uses information from the system output to adjust the system input. It aims to maintain or bring back the system to a desired state. An example of feedback control is the thermostat in a room that maintains the temperature by turning the heater on or off based on the current temperature.
Feedforward control is a control method that adjusts the system input based on anticipated changes in the system output. It aims to prevent disturbances from affecting the system. An example of feedforward control is the automatic adjustment of the fuel mixture in a car's engine based on the detected altitude or temperature.
Symmetry control refers to a control method where there is a balance or equilibrium between different parts or components of a system or process. It ensures that the system remains stable and functions properly.