Test system and test method of variable propeller system of wind turbine generator group
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The invention provides a test system and a test method of a variable propeller system of a wind turbine generator group. The test system comprises a loading controller, a dragging driver and a dragging motor, wherein the loading controller comprises a load calculation unit and a load output terminal; the dragging driver is connected with the load output terminal; the dragging motor is connected with the dragging driver; and an output shaft of the dragging motor is coaxially connected with an output shaft of a variable propeller motor to be tested. A loading device structure is simple and a complex hydraulic system is not needed to be arranged in the test system, so that an integral structure of the test system is simplified and the costs of the test system are reduced.