Convergence Region of Newton Iterative Power Flow Method: Numerical Studies

Table 5

Load parameters, the size of convergence region, number of power flow solutions, and fractal property for different load models.

Load model type	Load parameters for all buses			Number of solutions	Number of initials converged to SEP	Fractal
	a	b	c
Constant impedance	1	0	0	70	16495	Yes
Constant current	0	1	0	56	16493	Yes
Constant power	0	0	1	20	16274	Yes
ZIP	0.33	0.33	0.33	34	16486	Yes