Study on digital-analog hybrid model of synchronous generator with direct drive wind turbine

A digital-analog hybrid model of synchronous generator with direct drive wind turbine is formed based on realtime digital simulator HYPERSIM and Voltage Source Converter analog model. It combines with the merits of digital simulator and analog simulator. The dynamic behavior and responding character of the model is be studied by simulating steady and transient tests including network faults. The technical problems of real-time simulating the dynamic character of IGBT in wind turbine exactly are solved. This model provides an indispensable technical measure to study the strategy and parameters of the real wind turbine controllers. It can also be used to study the dynamic characteristic of the wind turbine connected to grid. Basic guidelines for the preparation of a technical work for the IEEE Power & Energy Society are presented.