Dynamic Systems
A system whose rate of change of its states or responses with time cannot be neglected.
These systems have memory, not a memoryless system, is also causal.
These systems can be represented by differential equations.
Time Response of Dynamic Systems
Has 2 parts…
- Forced response: a response caused by the input (Prof. Maftoon called this the steady-state response)
- Free response: a response caused by the inherent characteristics of the systems (Prof. Maftoon called this the transient response
- These carry over concepts from Time Domain Analysis
Closed vs Open Loop Systems
I should have learned what the actual difference was conceptually earlier haha…
Open Loop:
- Operates without feedback
- The poles here are determined by the natural dynamics of the plant which represent the inherent stability and response characteristics of the system Closed Loop:
- Operates with feedback, The system continuously measures the output and compares it to a desired value adjusting the input to minimize error
- The poles here are shifted by the feedback system, these are found in the complex plane typically or should be moved there manually for stability
Overall, the open loop stuff comes directly from system dynamics whereas the closed loop stuff comes from after alterations to the system were made