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Consider the SISO open-loop unstable process with transfer function Gp 1 (s - 1)(8 + 1)(2s + 1) (a) Can a P only controller stabilize

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Consider the SISO open-loop unstable process with transfer function Gp 1 (s - 1)(8 + 1)(2s + 1) (a) Can a P only controller stabilize the process. Justify. [5] (b) It is proposed to stabilize the process using a PD controller. Setting TD = 1 min, find the range of controller gain Kc over which the controlled system is stable. [10]

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