Motor temperature rise testing device, testing control method thereof and controller

Abstract

The invention relates to a motor temperature rise testing device, a testing control method thereof and a controller. According to the motor temperature rise testing device, the controller is electrically connected with the control end of the frequency converter, the output end of the resistance measuring module, the output end of the temperature measuring module and the control end of the switching module, and the states of the frequency converter and the switching module are controlled in an automatic control mode. The automatic measurement of the cold-state winding resistance when the motor to be measured is not started and the environment temperature when the test is started can be realized, the automatic measurement of the hot-state winding resistance after the operation of the motor is finished and the environment temperature after the operation of the motor is finished can be realized, and the temperature rise of the motor can be automatically calculated according to the acquired environment temperature and the resistance value. The whole experiment process does not need manual intervention and is automatically executed, the motor stalling and running switching speed is high, the measurement data recording is complete, the consistency is good, and the personal safety threat caused by the fact that the resistance is measured when the motor is not completely stalled in the prior art is avoided.

Description

technical field [0001] The present application relates to the technical field of motor temperature rise testing, in particular to a motor temperature rise testing device, a test control method, and a controller. Background technique [0002] The temperature rise of the motor refers to the value of the temperature rise of the internal winding of the motor after the motor has been continuously operated under a certain load for a period of time. It is usually calculated by measuring the resistance value of the internal winding of the motor. Therefore, the measurement of temperature rise is actually transformed into the measurement of winding resistance and ambient temperature. [0003] The temperature rise characteristic curve reflects the heating and cooling characteristics of the motor. The determination of the temperature rise characteristic curve is of great significance to the design work of the development department. [0004] The current motor temperature rise test ma...

AI Technical Summary

Problems solved by technology

[0004]The current motor temperature rise test mainly relies on manual measurement, manually stops the motor, confirms that the motor stops, manually measures the winding resistance and temperature, records and processes the data and then draws The characteristic curve determines the temperature rise of the motor. This implementation method is inefficient and the consistency of the measurement data is poor.

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