4.3: Steady-State Error Improvement - Engineering LibreTexts
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WEBJun 19, 2023 · By using the final-value theorem (FVT), the steady-state tracking error is computed as: e(∞) = lim s → 0 se(s) The steady-state error to a step reference input, (r(s) = 1 s), is given as: e(∞) = 1 1 + KG ( 0). The steady-state error to a ramp reference input, (r(s) = 1 s2), is given as: e(∞) = 1 sKG ( s) | s = 0.
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