For this model all parameters of each phase are assumed symmetrical, including i 2_a,b,c, inverter-side current i 1_a,b,c, capacitor current i C_a,b,c, grid voltage V g_a,b,c, grid-side current i g_a,b,c, and local load current i L_a,b,c.
There are three possibilities that we stop the continuation: one of the perturbed parameters becomes close to 0 (in the LL model, all parameters should be positive), a bifurcation is detected, or the limit cycle gets an extremely long period.
However, in the GoM model, all parameters are simultaneously identified, while, individual parameters in Factor Analysis and Principal Components methods are usually calculated using summary variables derived from within the dataset [7].
In the second-best model, all parameters had a linear relationship with RSA.
In the PCSc-12 model, all parameters estimated were negative and in descending order of magnitude except for the response choices for two items (SF2 and EWB3).
In the Cox multivariate regression model, all parameters with p < 0.1 at the univariate level were entered to compare their independent prognostic impacts.
