Existing electromagnetic transient modeling methods are mostly aimed at the simulation of small-capacity units under typical voltage sag conditions, and rarely take the considerations of comprehensive simulation and verification of different voltage disturbances at various operating points simultaneously. Based on the "black box" model of a certain type of large-scale wind turbines, the white-box electromagnetic transient modeling method is proposed to obtain main circuit identifications, control circuit identifications and model verifications. For the main circuit, a main circuit topology and parameters of a large-capacity full-power wind turbine, consisting of a typical half direct-drive rotary system, a neutral-point clamped parallel three-level converter and a protection circuit module are identified. For the control circuit, the neutral point potential balance controller and H/LVRT controllers and parameters are identified. Through the comparison with the H/LVRT response characteristics of actual wind turbine of different voltage sags and rises at various operating points, it is found that they are consistent with actural wind turbine, proving the effectiveness of the proposed modeling method.