Electromechanical transient modeling method and electromechanical transient model of direct-drive-type wind turbine generator system
A technology of wind power generators and wind power generators, applied in wind power generation, electrical digital data processing, special data processing applications, etc., can solve problems such as poor numerical convergence, slow calculation speed, and complexity
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[0142] In order to verify the correctness of the built model, the present invention builds a practical electromechanical transient model of the direct-drive wind turbine under the environment of the power system simulation software PSASP UD. In the power system simulation software PSASP simulation program, a single-unit infinite power system is built to simulate various operating conditions of the direct-drive wind turbine. Finally, the simulation results were compared with the measured curves of direct-drive wind turbines connected to the grid. A stand-alone infinite system such as Figure 8 shown.
[0143] Working condition 1: The active power 1.5MW voltage drops to 75% of the rated voltage, and the duration is 1.9s; the measured curve and simulation curve of working condition 1 are as follows Figure 9 and Figure 10 shown, where P e and Q e Respectively represent the active power and reactive power output by the direct-drive wind turbine.
[0144] Working condition 2...
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