Electrical and Computer Engineering Homework Solutions

Control Systems

Consider the attached system under feedback control. (i) Find the transfer function between input disturbance and output... (see attachment for rest)

Control Systems

Consider a feedback control system under proportional control with forward and feedback transfer functions given by (Please refer to the attached file). (i) Use the Routh criterion to determine the range of positive proportional controller gain... (see attachment)

Block diagram in feedback control system form.

I attached a Word document with a circuit to analyze for: a) Draw a block diagram of the circuit in feedback control system form. b) Derive an expression for Io in terms of Vi and the system parameters Av, Ro, RL, and Rf. c) How should the system be designed to make Io independent of RL? What is the approximate expression fo ...continues

ROOT LOCUS

Consider a negative gain root locus for L (s) ... (see attachment for rest of practice question)

Ziegler Nichols Rules

For the plant (attached), the Zeigler Nichols Rules give a PI controller... (see attachment)

Control Systems (Closed Loop; Amplifier Gain; Natural Frequency; Root Locus; Stable, Underdamped Response)

Please consider the attached motor control system. (i) Find the characteristic equation of the closed loop system, and find the amplifier gain K1 so that the natural frequency of the system is {see attachment} (ii) Suppose that K2 = 1. Sketch the root locus of the closed loop system poles for {see attachment} (iii) For what v ...continues

Control Systems (Transfer Function; Open / Closed Loop System; Observable / Unobservable)

A system described in the attachment is under feedback control of the form u = Kx + r where r is the reference input. (i) Show that (A,C) is observable. (ii) Compute a K of the form {see attachment} so that (A - BK, C) is unobservable. (I.e., the closed loop system is unobservable) (iii) Find the transfer function of the open ...continues

Control Systems

Please refer to the attached file. PLEASE PAY ATTENTION ON THE CONTENT ON PAGE 2 IN THE FILE. It is difficult to answer this non-assignment question. Please help to work out the detailed step-by-step answers to this non-assignment question. The detailed step-by-step answers will be helpful for understanding the context o ...continues

Root Locus

Consider the root locus for ... (*see attachments for function and diagram) i) Graphically, find the gain required to give dominant closed loop poles with ... (*see attachment for function) ii) For the above value of gain, find natural frequency and hence sketch the expected reference to output step response, assuming that the ...continues

Control Systems

Please refer to the attached file.

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