No-load iron loss test method for induction motor

A technology of induction motor and no-load iron consumption, which is applied in the direction of motor generator testing, measuring devices, and measuring electrical variables, etc., can solve the problems of acquisition and accurate testing of motors, and achieve the effect of accurate no-load iron consumption
CN109901068AActive Publication Date: 2019-06-18BEIDOU AEROSPACE AUTOMOBILE BEIJING CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
BEIDOU AEROSPACE AUTOMOBILE BEIJING CO LTD
Publication Date
2019-06-18

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Abstract

The invention relates to a no-load iron loss test method for an induction motor. The method includes the following steps that: under the no-load condition of the induction motor, the no-load loss parameters of the induction motor working under a predetermined input voltage and frequency are obtained, so that motor constant loss is obtained; a rotor sleeves the power output shaft of a test drivingdevice through a magnetic suspension bearing; the test driving device is started so as to drive the rotor to rotate, and the wind friction loss parameters are detected under the predetermined input voltage and frequency, so that wind friction loss can be obtained; the rotor sleeves the power output shaft of the test driving device through a rotary bearing; the test driving device is started undera vacuum environment so as to drive the rotor to rotate, and mechanical friction loss parameters are detected under the predetermined input voltage and frequency, so that mechanical friction loss is obtained; and the no-load iron loss of the induction motor is obtained on the basis of the motor constant loss, the wind friction loss and the mechanical friction loss. With the no-load iron loss testmethod for the induction motor adopted, the wind friction loss and mechanical friction loss inside the motor can be effectively measured, and the no-load iron loss of the induction motor can be accurately obtained.
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Description

technical field

[0001] The invention relates to the technical field of induction motors, in particular to a test method for no-load iron loss of induction motors. Background technique

[0002] Induction motors are widely used in various fields of the national economy because of their simple structure, low cost, and high reliability. In recent years, many scholars have conducted a lot of research on the loss acquisition of induction motors. , Wind friction loss, especially the mechanical loss caused by mechanical friction loss, is accurately obtained, so that there are still difficulties in the accurate measurement of the loss of the motor.

[0003] Therefore, a method for testing no-load iron loss of an induction motor is provided. Contents of the invention

[0004] In view of the above-mentioned problems, the present invention is proposed in order to provide a no-load iron loss test method of an induction motor that overcomes the above-mentioned problems or at least part...

Claims

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