Abstract: When performing electromagnetic transient simulation of the power system containing renewable energy stations, there exist many types of renewable energy generation equipment, making it difficult to directly obtain the control parameters. It is necessary for accurate modeling to identify the key control parameters by fitting the characteristics of actual equipment or the manufacturer's packaging simulation model. This paper studies on frequency domain identification methods of dynamic control parameters of full-power converter equipment and doubly fed induction generators (DFIG). The key work is to establish a frequency domain analysis model of multiple electrical ports and sufficiently simplify the model by decoupling, so as to clarify the identification conditions of control parameters. First, the frequency domain impedance models of multiple electrical ports of two kinds of equipment are established. Next, the enabling sensitivity of the port frequency domain characteristic to control links is defined. By analyzing the structural and parameter sensitivity, identification possibility and sequence of all control parameter are defined. Then the simplified parameter identification model is established and compared with the detailed model, and the parameter identification procedure is determined. Finally, based on the simulation example of general manufacturer's packaging model, the identification process of control parameters is given. Frequency characteristics of the final general structure simulation model are compared with the manufacturer's package model, and the validity of the model structure and identification method is verified. The process of parameter identification is independent of optimization algorithm, and the simulation model acquired can be used to study the problems sensitive to dynamic control parameters such as wide-band oscillation.