Figure 7. Performance of the method for the IEEE-300 bus system with duplicate step, Δα = 2.0 fixed: (a) P-V curve of the critical bus (stored points) with duplicate step, (b) number of iterations

From

Technique for Continuation Power Flow Using the “Flat Start” and for Ill-Conditioned Systems

Bonini Neto A., Matarucco R. R., Alves D. A.

World Journal Control Science and Engineering. 2015, 3(1), 1-7