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The feedback control system shown in Figure 7 is used to control the angular position of a satellite dish. The desired angle, Oref, is set using a rotary dial. Kp is the gain of the amplifier, Km, t, and K are system parameters and are constant. Assume there is a wind disturbance in the system that can change the angular position. a) Find the transfer functions of |D=0 and 0-0 b) Find the steady state error due to the wind disturbance when the disturbance is a unit step input. Can the wind change the angle during long time in this case? Desired Satellite Dish Angle Wind Disturbance Amplifier Motor and Mechanical Load K m D Ω 1 Кр Actual Satellite Dish Angle 1+ TS S K Angle Sensor Figure 7 Feedback Control System for a satellite

The feedback control system shown in Figure 7 is used to control the angular position of a satellite dish. The desired angle, Oref, is set using a rotary dial. Kp is the gain of the amplifier, Km, t, and K are system parameters and are constant. Assume there is a wind disturbance in the system that can change the angular position. a) Find the transfer functions of |D=0 and 0-0 b) Find the steady state error due to the wind disturbance when the disturbance is a unit step input. Can the wind change the angle during long time in this case? Desired Satellite Dish Angle Wind Disturbance Amplifier Motor and Mechanical Load K m D Ω 1 Кр Actual Satellite Dish Angle 1+ TS S K Angle Sensor Figure 7 Feedback Control System for a satellite

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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The feedback control system shown in Figure 7 is used to control the angular position of a satellite dish. The desired angle, Oref, is set using a rotary dial. Kp is the gain of the amplifier, Km, t, and K are system parameters and are constant. Assume there is a wind disturbance in the system that can change the angular position. a) Find the transfer functions of |D=0 and 0-0 b) Find the steady state error due to the wind disturbance when the disturbance is a unit step input. Can the wind change the angle during long time in this case? Desired Satellite Dish Angle Wind Disturbance Amplifier Motor and Mechanical Load K m D Ω 1 Кр Actual Satellite Dish Angle 1+ TS S K Angle Sensor Figure 7 Feedback Control System for a satellite
Transcribed Image Text:The feedback control system shown in Figure 7 is used to control the angular position of a satellite dish. The desired angle, Oref, is set using a rotary dial. Kp is the gain of the amplifier, Km, t, and K are system parameters and are constant. Assume there is a wind disturbance in the system that can change the angular position. a) Find the transfer functions of |D=0 and 0-0 b) Find the steady state error due to the wind disturbance when the disturbance is a unit step input. Can the wind change the angle during long time in this case? Desired Satellite Dish Angle Wind Disturbance Amplifier Motor and Mechanical Load K m D Ω 1 Кр Actual Satellite Dish Angle 1+ TS S K Angle Sensor Figure 7 Feedback Control System for a satellite
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