Air gap measuring device and air gap measuring method of motor and wind generating set
A technology for wind turbines and measuring devices, which is applied to measuring devices, electromechanical devices, wind power generation, etc., can solve the problems of difficulty in measuring the air gap value of the motor, and it is difficult to optimize the design margin of the air gap value, so as to achieve the improvement of material utilization, Improve targeting and accuracy, reduce the effect of air gap value
Active Publication Date: 2021-06-22
XINJIANG GOLDWIND SCI & TECH
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Problems solved by technology
[0006] In order to solve the problem that it is difficult to measure the air gap value of the motor and to optimize the design margin of the air gap value, the present invention provides an air gap measurement device for a motor, an air gap measurement method and a wind power generating set
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[0029] Embodiments of the present invention will now be described more fully with reference to the accompanying drawings, in which exemplary embodiments of the invention are shown. In the drawings, the same reference numerals denote the same components throughout. The figures may not be drawn to scale, and the relative size, proportion and depiction of elements in the figures may be exaggerated for clarity, illustration and convenience. In addition, in order to clearly show the relationship between components or the internal structure, etc., in the drawings, the parts that are not related to the described content are omitted.
[0030] The following will refer to Figure 1 to Figure 4 An air gap measuring device for a motor according to an embodiment of the present invention will be described. The following embodiments will be shown and described by taking a motor in a wind power generating set as an example. Moreover, the motor may include an outer rotor and an inner stator...
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The invention provides an air gap measuring device of a motor, an air gap measuring method and a wind generating set. The air gap measuring device comprises a measuring loop and an information collecting device, the measuring loop comprises a loop conductor, and the loop conductor is arranged on a stator winding assembly of the motor in the direction of cutting a magnetic induction line of the motor. The two ends of the measuring loop are connected into the information collecting device, the information collecting device collects induced electromotive force induced by the loop conductor, and the air gap value between the stator winding assembly and the rotor assembly of the motor is determined through the induced electromotive force. According to the air gap measuring device of the motor, the air gap measuring method and the wind generating set, the air gap of the motor can be measured through a simplified structure, and the air gap value of the motor under the actual working condition can be measured by forming a measuring loop under the condition that the original structure of the motor is not influenced.
Description
technical field [0001] The invention relates to an air gap measuring device for a motor, an air gap measuring method and a wind power generating set. Background technique [0002] In the motor, one of the functions of the rotor is to provide a rotating magnetic field. The magnetic field of the rotor can be generated by electricity or by a permanent magnet. The stator winding generates an electromotive force by cutting the magnetic induction line. [0003] In general, there is a certain air passage between the stator and rotor of the motor, which can be called an air gap. The function of this air gap is to prevent the stator and rotor from mechanical contact, and to avoid friction and friction during the operation of the motor. put one's oar in. [0004] Due to factors such as processing technology level and actual engineering application, a sufficient air gap width is generally reserved in motor products, especially in large motors. If the motor is subjected to some externa...
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IPC IPC(8): H02K11/20G01B7/14
CPCH02K11/20G01B7/14Y02E10/72
Inventor 李术林张世福张宝刚
Owner XINJIANG GOLDWIND SCI & TECH