FAULT DETECTION METHOD TYPE OF SERIES PERMANENT MAGNET MOTOR AND SYSTEM USING THE SAME

摘要

The present invention relates to a permanent magnet motor. Disclosed are a method and a system for detecting faults in the serial coil type permanent magnet motor making a feature of comprising: a step of driving a serial type coil motor based on the defined current order value; a step of detecting the current vector of the motor; a step of calculating a current compensation value for removing the negative sequence component of the motor based on the current vector; a step of providing the current compensation value to a negative sequence current control device and calculating the output of the negative sequence current control device, a fault degree, and a fault image of the serial coil type motor using a fault model in which the inducement magnetic flux change amount of other slots on the specific image and the specific slot of the serial coil type motor; and a step of applying the current indication value in which the calculated fault image and fault degree are applied. [Reference numerals] (AA) START; (BB) END; (S101) Provide a control signal according to defined current instruction value to an invertor; (S103) Serial coil type motor operation according to control signal; (S105) Detect a current vector of a serial coil type motor; (S107) Calculate a current compensation value for removing a negative sequence component; (S109) Provide a current compensation value to a negative sequence current controller; (S111) Detect and apply a fault degree and a fault image using a fault model in which an inducement magnetic flux change amount and the output of a negative sequence current controller are applied