Warning: Matrix is singular to working precision. i got this warning when i try to find the invers for the following matrix

1 view (last 30 days)
Hussein Ali
Hussein Ali on 25 Mar 2018
Answered: Walter Roberson on 25 Mar 2018
Ybus=[-80i 0 0 0 0
0 -71.429i 0 0 0
0 0 -9.524i 2.857i 6.667i
0 0 2.857i -16.187i 13.33i
0 0 6.667i 13.33i -19.997i]
Zbus=inv(Ybus)

Sign in to answer this question.

Answers (1)

Walter Roberson
Walter Roberson on 25 Mar 2018
Ybus(3,:) + Ybus(4,:) equals Ybus(5,:) so rank(Ybus) is only 4 not 5. The equation is singular and has no inverse.

Categories

Find more on Logical in Help Center and File Exchange

Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!