Question

By default, Power World Simulator uses ___________ method

for the power flow solution.

Short answer

Therefore, the correct option is “Newton-Raphson”

Step-by-step solution

Definition of Newton-Raphson.

Newton-Raphson method is used for finding a real root polynomial of a given

differential function. It is defined as:

$\mathbf{y}\mathbf{=}\mathbf{f}\mathbf{\left(}\mathbf{x}\mathbf{\right)}$ …… (1)

Here, x , y and f are vectors for the power flow problem.

Step 3: Newton Raphson Method for power flow solution.

Newton-Raphson method is best suited for solving nonlinear power flow

equations due to:

(a) Newton-Raphson converges in many cases where Jacobi and Gauss-

Seidel diverge.

(b) The number of iterations required for convergence is self-sufficient of the

dimension but Jacobi and Gauss-Seidel as dependent on.

(c) It converge fewer than 10 iterations for Newton-Raphson power flow

equations.

Hence, by default, Power World Simulator uses Newton-Raphson method for

the power flow solution.