Question

In a load flow problem solved by Newton-Raphson method with polar coordinates, the size of the Jacobian is $100\times 100$. If there are 20 PV buses in addition to PQ buses and a slack bus, the total number of buses in the system is

• A. 61

Answer 1

The correct option is A 61
$\left[J\right]=[2n-m-2]$
$100=[2n-20-2]$
$n=\frac{100+22}{2}=61$
Total nuber of buses =n=61