Presentation on theme: "Closed-Loop System. Closed-Loop Control System."— Presentation transcript:
Closed-Loop Control System
Open-Loop Amplifier Amplifier with Feedback
Block diagram model of feedback amplifier assuming Rp>>R0 of the amplifier.
Transient Response of Control Systems
Open-loop speed control system (without feedback).
(a)Closed-loop speed control system. (b)(b) Transistorized closed-loop speed control system.
The response of the open-loop and closed-loop speed control system when τ 5 10 and K1. Ka. Kt =100. The time to reach 98% of the final value for the open-loop and closed- loop system is 40 seconds and 0.4 second,respectively.
Disturbance in Feedback Control System
Steel rolling mill.
Open-loop speed control system (without external feedback).
Closed-loop control system with measurement noise.
A block diagram model of a boring machine control system
The response y(t) to (a) a unit input step r(t) and (b) a unit disturbance step input D(s) 5 1/s for K=100.
The response y(t) for a unit step input (solid line) and for a unit step disturbance (dashed line) for K=20.
The solar-powered Mars rover,named Sojourner,landed on Mars on July 4,1997 andwas deployed on its journey on July 5,1997. The 23-pound rover is controlled by anoperator on Earth using controls on the rover [21,22]. (Photo courtesy of NASA.)
Control system for rover; (a) open-loop (without feedback) and (b) closed-loop with feedback. The input is R(s)=1/s.
The magnitude of the sensitivity of the closed-loop system for the Mars rover vehicle.
Control system for disk drive head reader.
Disk drive head control system with the typical parameters of Table 2.11.
Closed-loop response. (a)MATLABscript. (b) Step response for Ka=10 and Ka=80.