Large marine pod power system comprehensive test bench and test method

The invention discloses a large marine pod power system comprehensive test bench and test method.The test bench comprises a power transformation module, a driving module, a loading module, a control and monitoring station and a circulating water system, and the driving module comprises a first driving unit and a second driving unit; the output end of the three-winding rectifier transformer is connected with the input end of the first driving unit, and the output end of the first driving unit is connected with the tested large marine pod motor in the loading module through the switch wiring cabinet. Each driving unit comprises a frequency converter, a voltage transformer, a current transformer and a brake resistor cabinet, and the control and monitoring station comprises an industrial personal computer, a PLC, a telegraph and an AVL controller. The circulating water system comprises a water supply unit, a cooling unit and a circulating water pool. The test method comprises a starting step A and a stopping step