Effect of feedback on sensitivity to parameter changes, Electrical Engineering

Assignment Help:

Q. Effect of feedback on sensitivity to parameter changes?

A good control system, in general, should be rather insensitive to parameter variations, while it is still able to follow the command quite responsively. It is apparent from Figure that in an open-loop system the gain of the system will respond in a one-to-one fashion to the variation in G. Let us now investigate what effect feedback has on the sensitivity to parameter variations.

The sensitivity S of a closed-loop system with Equation to a parameter change p in the direct transmission function G is defined as

2100_Effect of feedback on sensitivity to parameter changes.png

where Gp denotes that the derivative is to be taken with respect to the parameter p of the function G. From Equation it follows that

1105_Effect of feedback on sensitivity to parameter changes1.png

Equation shows that the sensitivity function can be made arbitrarily small by increasing HGp, provided that the system remains stable.

1996_Effect of feedback on sensitivity to parameter changes2.png


Related Discussions:- Effect of feedback on sensitivity to parameter changes

Solutions of question bank needed urgent, Need answers of a question bank o...

Need answers of a question bank of power electronics . It is an assignment. Urgent

Calculate the frequencies at which there is an alias, A pure sine wave alon...

A pure sine wave along with a frequency of 100Hz is sampled at 150Hz. At which point one of the subsequent frequencies would you expect an alias? A) 75Hz B) 100Hz C) 150Hz

Constant voltage from solar panel, circuit for the buck boost regulator con...

circuit for the buck boost regulator connected to a ic regulator , my voltae range is 5v to 24v?

Find the initial and final values of the armature current, A 10-hp, 230-V, ...

A 10-hp, 230-V, 500-r/min shunt motor, having a full-load armature current of 37 A, is started with a four-point starter. The resistance of the armature circuit, including the inte

Determine the magnitude of the current, Determine the magnitude of the curr...

Determine the magnitude of the current: For the circuit of Figure below determine the magnitude of the voltage "drops" across each resistor R1 - R7. Determine the magnitude

Dwsdasdad, adadaaaaaaaaaaaaaaaaaaaaaaascaacacaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa...

adadaaaaaaaaaaaaaaaaaaaaaaascaacacaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaAsk question #Minimum 100 words accepteda

Expression for the force exerted on the iron plunger, Solenoids find applic...

Solenoids find application in a variety of electrically controlled valves. The magnetic structure shown in Figure is a simplified representation of a solenoid in which the flux in

Program description , Program Description In the above  program  any t...

Program Description In the above  program  any two  numbers can be stored in register A and B ( by  replacing XX  and YY). Contents  of B are  compared with A. If  B CY = 0

Find the fourier-series expansion of the pulse train, The rectangular pulse...

The rectangular pulse train of Figure (a) consists of pulses of height A and duration D. Such pulse trains are employed for timing purposes and to represent digital information. Fo

Sketch the timing diagram for a 4-bit ripple counter, Q. Sketch the timing ...

Q. Sketch the timing diagram for a 4-bit ripple counter which uses T flip-flops.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd