Water-cooled motor test platform and use method

Abstract

The invention relates to a water-cooled motor test platform and a use method. The water-cooled motor test platform comprises a control system, a test workbench and a water-cooled system, wherein the water-cooled system comprises a water tank, a circulating water pump and a heat radiator, a tested motor and a driven motor are respectively provided with a water-cooled casing, the water flowing out of the water tank is respectively received into the water-cooled casings of the tested motor and the driven motor by the circulating water pump, the water flowing back to the tested motor and the driven motor is gathered and received into the heat radiator and then returns back to the water tank, the heat radiator comprises heat radiating pipes and a fan, and water inlet pipes of the tested motor and the driven motor are respectively provided with an adjusting valve. The use method comprises the following steps that the tested motor and the driven motor are fixedly connected and are connected with wires, the water is added into the water-cooled system, and the circulating water pump is started; during test, firstly a controller is adjusted, and the rotation speed of the tested motor is gradually increased to one half of the rated rotation speed and is maintained for one hour; after the rotation speed is normal, the tested motor runs at the 1 / 3 and 1 / 2 of rated power; and only after the water temperatures of the water outlets of the tested motor and the driven motor are respectively below than 60 DEG C, the driving measurement is carried out. The water-cooled motor test platform and the use method have the advantages that the working temperatures of the tested motor and the driven motor are the same, the test data is more accurate, and the service life of the driven motor is also prolonged.

Description

technical field [0001] The invention relates to motor testing technology, in particular to a water-cooled motor testing platform and its use method. Background technique [0002] At present, the common motor test platform is composed of a controller and a test bench. The controller is used to output electric energy and control signals to the motor under test. The motors are all consumed on the test bench. [0003] Usually, the traction motor in the test platform converts the kinetic energy output by the motor under test into electrical energy in the form of a generator, and the electric energy generated by the traction motor can be recycled and reused, or directly converted into heat energy. In order to save energy and recover energy, the controller of the new motor test platform that has appeared in the past two years can recycle and reuse the electric energy generated by the traction motor. In the traction of large and medium-sized motors, the energy saving effect is obvi...

AI Technical Summary

Problems solved by technology

As a generator, the traction motor needs to convert a large amount of kinetic energy of the motor under test into electric energy, which will generate the same amount of heat. When the temperature of the motor is too high, the resistance value of the motor's internal resistance and the magnetic permeability of the silicon steel sheet will change, directly affecting The efficiency of the motor also affects the accuracy of the measured power value, and also greatly reduces the service life of the drag motor

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