Intelligent detection method of motor winding magnetic potential
A technology of intelligent detection and motor winding, which is applied in the direction of motor generator testing, measuring electricity, measuring devices, etc., and can solve the problems of inability to give accurate conclusions, wrong judgments when offline, and heavy workload.
Active Publication Date: 2012-01-18
FLIGHT AUTOMATIC CONTROL RES INST
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Problems solved by technology
In the past, the indirect inspection method of converting magnetic quantity into electric quantity was often used, such as the induction potential method using the principle of transformer. Therefore, the result is not intuitive; the comprehensive test method of electrical error detection is performed by using the confirmed correct rotor and the measured sub-unit to form a complete machine. When there is a large deviation between the performance and the normal result, the following can be given in general The general judgment of line error, when the performance deviation is not large, it is impossible to give an accurate conclusion, and this method has a large workload and high detection cost
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[0087] 1. The method of generating the magnetic potential data of the correct winding standard sample
[0088] Take the stator winding of the precision machine of the dual-channel resolver transmitter as an example. The number of pole pairs of the dual-channel resolver transmitter is P=8; the number of stator slots Zs=36;
[0089] The number of stator precision machine units n=4; the number of slots of stator precision machine units Z 0 =9; element span C=2, Seiki stator type III sine winding cosine phase unit winding
[0090] The correct parameters of the group and the intermediate quantities are shown in Table 1:
[0091] Table 1
[0092]
[0093]
[0094] The magnetic potential distribution curve of the correct winding standard sample is as follows: Figure 4 shown.
[0095] 2. Generation method of magnetic potential data of standard samples of common winding error modes
[0096] Taking the polarity error of the single-slot winding in the third slot of the Seiki...
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The invention belongs to a motor testing technology, and relates to an intelligent detection method of motor winding magnetic potential. By adopting a mechanical indexing device, an isotropic soft magnetic material slotless technical rotor or stator, a digital teslameter, a DC stabilized power supply and a desk computer, a rotor and a stator of a motor winding are detected by using the technical rotor and the technical stator, an inserting winding of the motor winding is judged to be correct by using a sample prestored in the computer and an error position and a correction method are reminded. The invention is simple in equipment requirement. By only needing the mechanical indexing device with precision of not less than 2', the digital teslameter, the DC stabilized power supply and the desk computer, thus the invention is easy to configure and easy to realize automatic detection, is suitable for batch production, can be used for detecting various motor windings, is especially suitable for detecting conditions such as coil turn difference, inserting winding polarity change, unit winding transposition and the like with high technical difficulty and easiness in generating local errors, and has high detection accuracy.
Description
technical field [0001] The invention belongs to the motor testing technology and relates to an intelligent detection method for the magnetic potential of motor windings. Background technique [0002] For situations where the number of turns of the coil is different, the polarity of the off-line changes, and the unit winding is transposed, etc., which are technically difficult (such as the type III sinusoidal winding of the multi-pole resolver, etc.), and are prone to local errors, the correctness check of the off-line is a necessary link. . In the past, the indirect inspection method of converting magnetic quantity into electric quantity was often used, such as the induction potential method using the principle of transformer. Therefore, the result is not intuitive; the comprehensive test method of electrical error detection is performed by using the confirmed correct rotor and the measured sub-unit to form a complete machine. When there is a large deviation between the per...
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IPC IPC(8): G01R31/06G01R31/34
Inventor 李秉实王东辉包艳
Owner FLIGHT AUTOMATIC CONTROL RES INST