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110年 - 110台灣聯合大學系統_碩士班招生考試_電機類:控制系統#104974
> 申論題
題組內容
3. Consider the following feedback system with plant
and controller
(c) Analyze the stability from Nyquist plot for all K.
相關申論題
(d) To stabilize the system, a control engineer chooses ) where p>0. Show that the root locus contains a circle for K>0.
#445237
(e) As in part (d), design the closed-loop poles at -1± j, design the controller
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(f) From the root locus in part (d), what are the Gain margin?
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(g) In part (e) and inputr(t) =1 +cos(√2t-30°), what is the steady state output?
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(a) What is the impulse response, h(t), of the output without initial condition?
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(b) Consider a system ruled by , find the representation of A, B, and C with Controllability Canonical Form.
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(c) Without initial condition, what is the impulse response of the output by part (a)? Hint: the Laplace transform of Φ(t) is.Do NOT computed Φ(r)directly.
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(d) Solve the impulse response,h(1),)with differential equation approach. What is your observation with the result in part (c)?
#445244
(a) Provide the definitions of forced convection and natural (free) convection.
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(b) Give the definitions s and physical meanings of PrandtI number (Pr), Nusselt number (Nu), and Grashof number (Gr).
#445246
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