发明名称 |
AUTO SELF TEST OF AC MOTOR SYSTEM |
摘要 |
<p>2123095 9411747 PCTABS00032 Apparatus and method for auto-self testing of a power converter and motor system wherein the power converter has three parallel legs, each including two series connected gate-turn-off thyristors (GTO) connected between a pair of DC power source buses. A microprocessor controls the test sequence in which each GTO is individually turned on in a predetermined order so as to create a transient snubber current through the motor and through each GTO when it is turned on. The snubber current and a voltage in each leg is measured and compared to a respective reference to detect wiring errors, and defects in the motor, the GTOs, and other system components. Error messages are generated in response to detection of abnormalities or defects.</p> |
申请公布号 |
CA2123095(A1) |
申请公布日期 |
1994.05.26 |
申请号 |
CA19932123095 |
申请日期 |
1993.11.08 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
KUMAR, AJITH K.;STITT, THOMAS D. |
分类号 |
G01R31/34;G01R31/00;G01R31/42;H02M7/521;(IPC1-7):G01R31/34;G01R31/02 |
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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