1. Overview : 1.2 Open Loop and Closed Loop Implementation Models : 1.2.2 Open Loop Systems : Control Theory Control Theory
The open loop control system is a non-feedback system where the control input to the system is determined using only the current state of the system and a model of the system. There is no feedback used to determine if the system is achieving the desired output based on the reference input or set point. The system does not observe itself to correct itself and, as such, is more prone to errors and cannot compensate for disturbances to the system.
Figure 3. Open Loop Control System