ELECTRICAL ELECTRONICS COMMUNICATION INSTRUMENTATION

Control Systems

Problem class for T1

ELECTRICAL ELECTRONICS COMMUNICATION INSTRUMENTATION

Problem 1

• The transfer function from elevator deflection to altitude change in a Tower Trainer 60 Unmanned aerial vehicle is . An autopilot is buiit around the aircraft as shown in the figure, with F(s)=H(s)=1. the steady state error for a ramp input in this system is ess=25. find the slope of the ramp input.

𝐺 (𝑠 ) 𝑃 (𝑠)C(s)R(s)

+- 𝐹 (𝑠 )

H

ELECTRICAL ELECTRONICS COMMUNICATION INSTRUMENTATION

Problem 1

ELECTRICAL ELECTRONICS COMMUNICATION INSTRUMENTATION

Problem 2 – Steady state error

• Find the total steady state error due to unit step input and a unit step disturbance in the system shown in the following figure

1𝑠+4

100𝑠+2

C(s)R(s)

+-

D(s)

++

ELECTRICAL ELECTRONICS COMMUNICATION INSTRUMENTATION

Problem 3

• Find the constraints on K1 and K2 such that the TF will have only two jw poles.

ELECTRICAL ELECTRONICS COMMUNICATION INSTRUMENTATION