Response of a system (Control theory)

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SUMMARY

The discussion focuses on the response of a control system characterized by the transfer function G(S) = 1 / (s^2 + 2aωs + ω^2). Participants explore the calculation of maximum elongation in percentage over the final value using the formula S = (final value) * 100 * e^((-π * a) / sqrt(1 - a^2)), where 'a' is the damping coefficient. A key question arises regarding the scenario when the final value is zero, prompting inquiries about alternative approaches to handle this condition.

PREREQUISITES
  • Understanding of control theory fundamentals
  • Familiarity with transfer functions
  • Knowledge of damping coefficients in oscillatory systems
  • Basic proficiency in mathematical modeling and exponential functions
NEXT STEPS
  • Research the implications of a zero final value in control systems
  • Explore alternative methods for analyzing system responses with zero final values
  • Study the effects of varying damping coefficients on system oscillations
  • Learn about stability analysis in control theory
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Students of control theory, engineers working with dynamic systems, and anyone involved in the analysis of system responses and oscillations.

Domenico94
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Hi everyone. I'm studying for the exam of control theory, and now I'm having an hard time with the response of a system, in particular when we have oscillations.
Suppose you have a system, with a transfer function, say, G(S), in the form:

G(S) = 1
-------------------
(s ^2 + 2a*w (s) + w^2)

Then, if we have oscillations, we can calculate the maximum elongation (in percentage), over final value, with the formula

S = (final value)* 100 * e ^ ((-pi * a)/sqrt(1 - a^2)),
in which a is the damped coefficient.
The problem is, if the final value is 0, what should I do there? Thank you for your help
 
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