发明名称 |
APPARATUS AND METHOD FOR MONITORING PERMANENT MAGNET DEMAGNETIZATION OF PERMANENT MAGNET SYNCHRONOUS MOTORS, AND A MEDIUM HAVING COMPUTER READABLE PROGRAM FOR EXECUTING THE METHOD |
摘要 |
PURPOSE: An apparatus and a method for monitoring permanent magnet demagnetization of permanent magnet synchronous motors, and a medium having computer readable program for executing the method are provided, which can diagnose easily a state of the permanent magnet within the permanent magnet synchronous motor. CONSTITUTION: A magnetic field generator(210) generates the magnetic field on the rotor rotary shaft and the perpendicular plane of the electric motor in various directions passing through the rotary shaft. A stator current measuring unit(220) measures the current flowing in a plurality of rotary shaft penetration directions. A diagnosis unit(230) diagnoses the potatoes state of the permanent magnet of the electric motor by using the correspondence of the value of the stator current. |
申请公布号 |
KR20100045718(A) |
申请公布日期 |
2010.05.04 |
申请号 |
KR20080104793 |
申请日期 |
2008.10.24 |
申请人 |
KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION |
发明人 |
LEE, SANG BIN;HONG, JONG MAN |
分类号 |
G01R31/34;G01R19/15;G01R33/02 |
主分类号 |
G01R31/34 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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