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For the unity feedback system in the below figure, 1. EGO) R(s)) C(s) G(s)K (s 1) (s + 4) a) Sketch the bode plot with Matlab command bode0 b) Plot the nyquist diagram using Matlab command nyquist(0, find the system stability c) Find phase margin, gain margin, and crossover frequencies using Matlab command margin(0 and find the system stability
For the unity feedback system in the below figure, 1. EGO) R(s)) C(s) G(s)K (s 1) (s + 4) a) Sketch...
8. A second order lag process has a resonant frequency, (o, of 10 rad/sec, a damping ratio of 0.1, and a steady state gain, G, of 1. Use the Bode diagram in figure given to determine the gain, m, in decibel, and the phase angle B, in degrees for the following values of the radiant frequency. Convert your decibel gain values, m, to ordinary gain values, g. (a) 0.1 rad/s, (b) 10 rad/s. 20 10 ζ-0.5 2.0 10 () ζ-20.0...
Answers are given.. Explain with calculations how to see from
bode plot which compensator it is and how is the d(s) written?
The next two questions require the following diagram -10 -15 -20 50 -50 100 Frequency (rad/sec) 10 4. The given Bode diagram is that of a lead compensator □ lag compensator lead-lag compensator D lag-lead compensator 5. Write the transfer function of the system represented by the given Bode diagram Solution The low frequency region indicates a lag...
6) The open loop transfer function of a control system is 10-011. Ata frequency of 1 Hz, the system phase shift is: (1) 0.9 kg (2) 5.7" tag (3) 18 (6) 36"lag (5) none of the above h) The open-loop transfer function of control system is 10 At high frequencies, the gain will: (1) be constant (2) roll off at -20 d/decade (3) roll off at -40 dB/decade (6) roll off at 60 dB/decade The open-loop transfer function of a...
2. Use straight line approximation to sketch bode (gain and phase) plots for 1000s G1(s) s+ IG+ 10 ()G)0 1 100 s(s2 +2s+100) Make corrections for complex poles, and indicate initial gain/slope, phase, and initial and final phases on the plots
3. Consider the transfer function: ls0 (s +0.5(s +2(s +3)(s +4(s+10) (s +3.5) (s +4.5) (s 5.5) (s 6.5)(s +20.5) (a) [6] Find the phase angle (degrees) and gain (in dB, Bode units) for the following frequencies (in rad/sec) rail Gp(ju) dB 0.1 21 56 b) [3 What is the gain crossover frequency for this system? (c) [8] Design a PD controller so that-0.3 ± 0.3] is a pole of the closed-loop system.
3. Consider the transfer function: ls0 (s...
QUESTION 1 Given the transfer function for a control system: 10 G(s) (1 + s)(0.5s + 1) 1.1 Determine the polar representation: Magnitude (gain) and Phase (polar form), as a function of angular frequency w. Show steps. (6) 1.2 Make use of the table below and determine the Magnitude, Magnitude (in dB) and phase for the indicated frequencies. (rad/sec) G(jw)- Magnitude Gain [dB] = 20 log10 Magnitude Phase [degrees] 0.5 5 50
Problem 3 Consider the transfer function: 108 (s2 5s +100) (s + 1000)2 G(s) 1. Sketch the bode diagram for G. 2. Knowing that a proportional controller with gain 1000 in a unity feedback loop with G results in an unstable system, what are the phase and gain margins of G? 3. Design a proportional controller that achieves a gain margin of 40dB. gain of 10dB at 0.01rad/s and a gain margin 4. Design that is infinity. compensator that results...
f. The amplitude of a cosine can be observed at the origin (t=0) when there is no phase shift. Find a simplified solution for the convolution integral below for t=0. +∞ output(t) = h(t)∗ s(t) = −∞ 3 rect(3x) cos(2π f0 (t − x)) dx Hint: Set t=0, sketch the situation to help set up the integral and remember the properties of odd and even functions to simply the calculation. g. The above result gives a general expression for the...
Problem-1 (60 pts) Manually sketch (i.e. don't use Matlab) the frequency responses (gain and phase Bode plots in logarithmic domain) of the following transfer functions (Hint: Clearly identify the poles and zeros, find the contributions from these poles and zeros over the plots, obtain independent gain and phase contributions and combine them in single phase and gain plots). For the plotting, one can use an empty log-log graph, make the hand drawing, scan and add the hand-plotted graph to the...