Motor Rotor Eccentric Fault Diagnosis Method Based on Fully Adaptive Matrix Bundle
An adaptive matrix and motor rotor technology, applied in the direction of motor generator testing, etc., can solve the problems of difficult identification accuracy and weak rotor eccentricity fault characteristics, and achieve the effect of high diagnostic feature accuracy and no possibility of misjudgment
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[0058] The present invention will be further elaborated below in conjunction with the accompanying drawings.
[0059] figure 1 It is an asynchronous motor frequency conversion speed regulation system. The three-phase AC power supply is uncontrolled rectified to obtain the DC bus voltage, which is supplied to the voltage source inverter. The weak current part adopts vector control mode, including voltage and current sensors, 3-phase / 2-phase static coordinate transformation module, 2-phase static / 2-phase synchronous speed coordinate transformation module, speed loop PI controller module, current loop PI controller module, 2-phase synchronous speed / 2-phase static coordinate transformation module, voltage sinusoidal pulse width modulation module. These parts are the functional modules required by the vector control of the asynchronous motor, and the invention mainly relates to a fault diagnosis device for the eccentricity of the motor rotor.
[0060] In this embodiment, the mot...
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