Question

For the temperature control problem in problem 2 of Hw # 5 (also studied in Hw # 4) with D(z) = K =1, and T= 0.6s, and no disturbance: Sketch

the Bode diagram for G(w) that you obtained in the previous homework (you needed this [or at least the characteristic equation] in Prob 6 of that hw). Use of matlab's bodeа.command to do this is ok. b. We already seen in the previous homework that the system is stable for K = 1. Use the Bodeplot to find the gain and phase margins. Use the Bode plot to find the frequency (actual frequency, i.e., s-plane, not the one in the w-plane) at which the system will oscillate when the gain is increased to make the system marginally stable.с.

Fig: 1

Fig: 2

Fig: 3

Fig: 4