The test bench is designed to test the working characteristics of PMG generator in flight control system of C919 aircraft. The maximum test speed of the generator is about 24500 R / min. the system adopts the direct drive mode of imported high-speed and high-precision motor, which reduces the complexity of the system and greatly improves the maintainability.

The main functions of the system include:

The output speed range is 0 ~ 24500 R / min, which can be adjusted continuously;

Speed change rate test;

Speed regulation characteristic test;

Steady state speed adjustment accuracy test;

Speed overshoot characteristic test;

Dynamic recovery characteristic test;

Forward and reverse characteristic test;

PMG test piece temperature, output voltage, main feeder voltage drop test;

Torque loading function;

The system has the functions of automatic cooling, active noise reduction and remote communication;