Root Locus : Revision some points asked by students_5_fast exercise

Root Locus : Revision some points asked by students_4: intersection of root locus on Jw axis

Root Locus : Revision some points asked by students_3: break away/in point

Steps to determine the break away point:

1. Find the Characteristics Equation 1+G(s)H(s)=0 of the system.
2. Write  K in terms of  s.
3. Derive dK/ds  and Put dK/ds =0.
4. The roots of the equation dK/ds =0 are the break away points.
5. Note: If the value of K is positive for any roots of dK/ds=0, the roots   (are) valid break away /break in points.

In this example the value of K is positive  for S=-0.785. Hence this the break away point.In the video there is error in the last minutes. so correct by this.

Remaining points are ok.

Take Care

Jitender

Root Locus : Revision some points asked by students_2: Asimptotes and Centroid

Root Locus : Revision some points asked by students_1: real axis loci

There is no real root loci in between -2 and -1 since the sum of poles and zeroes is  even.  

Link for test : 06.05.2020

https://forms.gle/VEYeVy9NmYgVmXCP8

Note . complete Q no 1  , 4 and 5 in the google form and submit.

For QNo 2 and 3  solve this in your copy , Scan and send it in the class (google class room)

Stay Home Stay Safe 

Take Care 

Jitender

Two more examples: Electrical Network

All Students are required to complete "questions for practice" uploaded on 26.04.2020 in this blog. 

I am taking your class today at 2: pm on google class.  There we will discuss the problems related to Electrical network.

Stay Home   Stay Safe

Take care

Jitender