Computer · Control Systems - Linearization
Control system engineers often design a controller using a linear model of a plant and then test/tune it on the nonlinear plant. Which statement best justifies this workflow?
- 1Nonlinear systems cannot be mathematically modeled at all, so only linear design is possible.
- 2Nonlinearities always improve system speed and accuracy, making detailed nonlinear analysis unnecessary.
- 3Linear systems have rich, well-developed analysis and design tools, whereas there is no general comprehensive method for all nonlinear systems.✓
- 4Piecewise linearization always gives the exact real-time response, so no further testing is needed.
Correct answer
Linear systems have rich, well-developed analysis and design tools, whereas there is no general comprehensive method for all nonlinear systems.
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