Simulation experiment system of permanent magnet direct-driven wind turbine generator set

The utility model discloses a simulation experiment system of a permanent magnet direct-driven wind turbine generator set in the technical field of wind power generation. The simulation experiment system comprises a computer, a PLC (programmable logic controller), a servo driver, a servo motor, a torque sensor, a multistage permanent magnet generator, a motor side converter, a power grid side converter, a frequency conversion controller and a main controller; wherein the computer, the PLC, the servo driver, the servo motor, the torque sensor, the multistage permanent magnet generator, the motor side converter and the power grid side converter are connected with one another in sequence, the frequency conversion controller is respectively connected with the main controller, the motor side converter and the power grid side converter, and the main controller is connected with the PLC. The simulation experiment system satisfies wide-range speed regulating requirements from start-up to grid-connected operation of a